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Tsai CY, Cheong HI, Houghton R, Hsu WH, Lee KY, Kang JH, Kuan YC, Lee HC, Wu CJ, Li LYJ, Lin YT, Lin SY, Manole I, Majumdar A, Liu WT. Predicting Fatigue-Associated Aberrant Driving Behaviors Using a Dynamic Weighted Moving Average Model With a Long Short-Term Memory Network Based on Heart Rate Variability. Hum Factors 2024; 66:1681-1702. [PMID: 37387305 DOI: 10.1177/00187208231183874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/01/2023]
Abstract
OBJECTIVE This study proposed a moving average (MA) approach to dynamically process heart rate variability (HRV) and developed aberrant driving behavior (ADB) prediction models by using long short-term memory (LSTM) networks. BACKGROUND Fatigue-associated ADBs have traffic safety implications. Numerous models to predict such acts based on physiological responses have been developed but are still in embryonic stages. METHOD This study recorded the data of 20 commercial bus drivers during their routine tasks on four consecutive days and subsequently asked them to complete questionnaires, including subjective sleep quality, driver behavior questionnaire and the Karolinska Sleepiness Scale. Driving behaviors and corresponding HRV were determined using a navigational mobile application and a wristwatch. The dynamic-weighted MA (DWMA) and exponential-weighted MA were used to process HRV in 5-min intervals. The data were independently separated for training and testing. Models were trained with 10-fold cross-validation strategy, their accuracies were evaluated, and Shapley additive explanation (SHAP) values were used to determine feature importance. RESULTS Significant increases in the standard deviation of NN intervals (SDNN), root mean square of successive heartbeat interval differences (RMSSD), and normalized spectrum of high frequency (nHF) were observed in the pre-event stage. The DWMA-based model exhibited the highest accuracy for both driver types (urban: 84.41%; highway: 80.56%). The SDNN, RMSSD, and nHF demonstrated relatively high SHAP values. CONCLUSION HRV metrics can serve as indicators of mental fatigue. DWMA-based LSTM could predict the occurrence of the level of fatigue associated with ADBs. APPLICATION The established models can be used in realistic driving scenarios.
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Affiliation(s)
- Cheng-Yu Tsai
- Department of Civil and Environmental Engineering, Imperial College London, London, UK
| | - He-In Cheong
- Department of Civil and Environmental Engineering, Imperial College London, London, UK
| | - Robert Houghton
- Department of Civil and Environmental Engineering, Imperial College London, London, UK
| | - Wen-Hua Hsu
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Kang-Yun Lee
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Jiunn-Horng Kang
- Department of Physical Medicine and Rehabilitation, Taipei Medical University Hospital, Taipei, Taiwan
- Research Center of Artificial Intelligence in Medicine, Taipei Medical University, Taipei, Taiwan
- Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, Taiwan
| | - Yi-Chun Kuan
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
- Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Taipei Neuroscience Institute, Taipei Medical University, Taipei, Taiwan
- Department of Neurology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
- Dementia Center, Taipei Medical University-Shuang Ho Hospital, New Taipei City, Taiwan
| | - Hsin-Chien Lee
- Department of Psychiatry, Taipei Medical University Hospital, Taipei, Taiwan
| | - Cheng-Jung Wu
- Department of Otolaryngology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Lok-Yee Joyce Li
- Department of Medicine, Shin Kong Wu-Ho-Su Memorial Hospitall, Taipei, Taiwan
| | - Yin-Tzu Lin
- Department of Medical Imaging and Intervention, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Shang-Yang Lin
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Iulia Manole
- Department of Civil and Environmental Engineering, Imperial College London, London, United Kingdom
| | - Arnab Majumdar
- Department of Civil and Environmental Engineering, Imperial College London, London, United Kingdom
| | - Wen-Te Liu
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
- Research Center of Artificial Intelligence in Medicine, Taipei Medical University, Taipei, Taiwan
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
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Majumdar A, Chowdhury S, Ahuja R. Purely Ionically Bonded Cation Paving the Way to Ultralow Thermal Conductivity and Large Thermoelectric Figure of Merit in Ruddlesden-Popper Perovskite Cs2SnI2Br2. J Phys Condens Matter 2024. [PMID: 38740041 DOI: 10.1088/1361-648x/ad4aac] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Lower dimensional materials have gained quite a bit of popularity in the last few decades. Perovskite materials have been studied extensively for their photovoltaic properties. But for large scale application of photovoltaic materials, the thermal properties need to be studied. In this work, using first principles calculations, we have studied the thermal conductivity and thermoelectric performance of quasi two-dimensional (2D) Ruddlesden-Popper phase of perovskite, Cs2SnI2Br2. The Cs atoms are found to be ionically bonded to the halogens leading to low elastic constants and hence give rise to weak bonding. The large anharmonicity in this material causes the lattice thermal conductivity to be ultralow having a value of 0.30 W.m-1.K-1 at 300 K and therefore the thermoelectric figure of merit has been found to be high with a maximum value of 2.08 at 600 K. This lead-free 2D perovskite can be the precursor to a wide variety of similar materials with ultralow thermal conductivity.
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Affiliation(s)
- Arnab Majumdar
- Terramera, 199 W 6th Ave, Terramera, Vancouver, British Columbia, V5Y 1K3, CANADA
| | - Suman Chowdhury
- Physics, University of Delhi, M6Q6+347, University Road, University Enclave, Delhi, 110007, New Delhi, Delhi, 110007, INDIA
| | - Rajeev Ahuja
- Fysiska Institutionen Department of Physics, Uppsala University, Condensed Matter Theory Group, Box 530, S-751 21, Uppsala, Uppsala, 256, 751 05, SWEDEN
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Moulick D, Majumdar A, Choudhury A, Das A, Chowardhara B, Pattnaik BK, Dash GK, Murmu K, Bhutia KL, Upadhyay MK, Yadav P, Dubey PK, Nath R, Murmu S, Jana S, Sarkar S, Garai S, Ghosh D, Mondal M, Chandra Santra S, Choudhury S, Brahmachari K, Hossain A. Emerging concern of nano-pollution in agro-ecosystem: Flip side of nanotechnology. Plant Physiol Biochem 2024; 211:108704. [PMID: 38728836 DOI: 10.1016/j.plaphy.2024.108704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 04/24/2024] [Accepted: 05/02/2024] [Indexed: 05/12/2024]
Abstract
Nanomaterials (NMs) have proven to be a game-changer in agriculture, showcasing their potential to boost plant growth and safeguarding crops. The agricultural sector has widely adopted NMs, benefiting from their small size, high surface area, and optical properties to augment crop productivity and provide protection against various stressors. This is attributed to their unique characteristics, contributing to their widespread use in agriculture. Human exposure from various components of agro-environmental sectors (soil, crops) NMs residues are likely to upsurge with exposure paths may stimulates bioaccumulation in food chain. With the aim to achieve sustainability, nanotechnology (NTs) do exhibit its potentials in various domains of agriculture also have its flip side too. In this review article we have opted a fusion approach using bibliometric based analysis of global research trend followed by a holistic assessment of pros and cons i.e. toxicological aspect too. Moreover, we have also tried to analyse the current scenario of policy associated with the application of NMs in agro-environment.
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Affiliation(s)
- Debojyoti Moulick
- Department of Environmental Science, University of Kalyani, Nadia, West Bengal, 741235, India; Plant Stress Biology and Metabolomics Laboratory, Department of Life Science and Bioinformatics, Assam University, Silchar, 788 011, India.
| | - Arnab Majumdar
- School of Environmental Studies, Jadavpur University, Kolkata, 700032, India.
| | - Abir Choudhury
- Department of Agricultural Chemistry and Soil Science, F/Ag., Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, West Bengal, 741252, India.
| | - Anupam Das
- Department of Soil Science and Agricultural Chemistry, Bihar Agricultural University, Sabour, Bhagalpur, India.
| | - Bhaben Chowardhara
- Department of Botany, Faculty of Science and Technology, Arunachal University of Studies, Arunachal Pradesh, 792103, India.
| | - Binaya Kumar Pattnaik
- Institute of Environment Education and Research, Bharati Vidyapeeth (Deemed to be University), Pune-411043, Maharastra, India.
| | - Goutam Kumar Dash
- Department of Biochemistry and Crop Physiology, MS Swaminathan School of Agriculture, Centurion University of Technology and Management, Paralakhemundi, Gajapati, Odisha, India.
| | - Kanu Murmu
- Department of Agronomy, F/Ag., Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, West Bengal, 741252, India.
| | - Karma Landup Bhutia
- Deptt. Agri. Biotechnology & Molecular Biology, College of Basic Sciences and Humanities, Dr. Rajendra Prasad Central Agricultural University, Pusa, Samastipur, Bihar, 848 125, India.
| | - Munish Kumar Upadhyay
- Department of Civil Engineering, Indian Institute of Technology Kanpur, Uttar Pradesh, 208016, India.
| | - Poonam Yadav
- Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, Uttar Pradesh, 221005, India.
| | - Pradeep Kumar Dubey
- Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, Uttar Pradesh, 221005, India.
| | - Ratul Nath
- Microbiology Laboratory, Department of Life Sciences, Dibrugarh University, Dibrugarh, Assam, India.
| | - Sidhu Murmu
- Department of Agricultural Chemistry and Soil Science, F/Ag., Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, West Bengal, 741252, India.
| | - Soujanya Jana
- Division of Agronomy, School of Agriculture and Rural Development, Ramakrishna Mission Vivekananda Educational and Research Institute, Narendrapur Campus, Kolkata, 700103, India.
| | - Sukamal Sarkar
- Division of Agronomy, School of Agriculture and Rural Development, Ramakrishna Mission Vivekananda Educational and Research Institute, Narendrapur Campus, Kolkata, 700103, India.
| | - Sourav Garai
- Division of Agronomy, School of Agriculture and Rural Development, Ramakrishna Mission Vivekananda Educational and Research Institute, Narendrapur Campus, Kolkata, 700103, India.
| | - Dibakar Ghosh
- Division of Agronomy, ICAR-Indian Institute of Water Management, Chandrasekharpur, Bhubaneswar, 751023, Odisha, India.
| | - Mousumi Mondal
- School of Agriculture and Allied Sciences, Neotia University, Sarisha, India.
| | - Subhas Chandra Santra
- Department of Environmental Science, University of Kalyani, Nadia, West Bengal, 741235, India.
| | - Shuvasish Choudhury
- Plant Stress Biology and Metabolomics Laboratory, Department of Life Science and Bioinformatics, Assam University, Silchar, 788 011, India.
| | - Koushik Brahmachari
- Department of Agronomy, F/Ag., Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, West Bengal, 741252, India.
| | - Akbar Hossain
- Department of Agronomy, Bangladesh Wheat and Maize Research Institute, Dinajpur, 5200, Bangladesh.
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Moulick D, Ghosh D, Gharde Y, Majumdar A, Upadhyay MK, Chakraborty D, Mahanta S, Das A, Choudhury S, Brestic M, Alahmadi TA, Ansari MJ, Chandra Santra S, Hossain A. An assessment of the impact of traditional rice cooking practice and eating habits on arsenic and iron transfer into the food chain of smallholders of Indo-Gangetic plain of South-Asia: Using AMMI and Monte-Carlo simulation model. Heliyon 2024; 10:e28296. [PMID: 38560133 PMCID: PMC10981068 DOI: 10.1016/j.heliyon.2024.e28296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 03/11/2024] [Accepted: 03/15/2024] [Indexed: 04/04/2024] Open
Abstract
The current study was designed to investigate the consequences of rice cooking and soaking of cooked rice (CR) with or without arsenic (As) contaminated water on As and Fe (iron) transfer to the human body along with associated health risk assessment using additive main-effects and multiplicative interaction (AMMI) and Monte Carlo Simulation model. In comparison to raw rice, As content in cooked rice (CR) and soaked cooked rice (SCR) enhanced significantly (at p < 0.05 level), regardless of rice cultivars and locations (at p < 0.05 level) due to the use of As-rich water for cooking and soaking purposes. Whereas As content in CR and SCR was reduced significantly due to the use of As-free water for cooking and soaking purposes. The use of As-free water (AFW) also enhanced the Fe content in CR. The overnight soaking of rice invariably enhanced the Fe content despite the use of As-contaminated water in SCR however, comparatively in lesser amount than As-free rice. In the studied area, due to consumption of As-rich CR and SCR children are more vulnerable to health hazards than adults. Consumption of SCR (prepared with AFW) could be an effective method to minimize As transmission and Fe enrichment among consumers.
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Affiliation(s)
- Debojyoti Moulick
- Department of Environmental Science, University of Kalyani, Kalyani, 741235, West Bengal, India
- Plant Stress Biology & Metabolomics Laboratory, Department of Life Science and Bioinformatics, Assam University, Silchar, 788011, Assam, India
| | - Dibakar Ghosh
- ICAR−Indian Institute of Water Management, Bhubaneswar, 751023, Odisha, India
| | - Yogita Gharde
- ICAR-Directorate of Weed Research, Jabalpur, 482004, Madhya Pradesh, India
| | - Arnab Majumdar
- School of Environmental Studies, Jadavpur University, Kolkata, 700032, West Bengal, India
| | - Munish Kumar Upadhyay
- Centre for Environmental Science & Engineering, Department of Civil Engineering, Indian Institute of Technology, Kanpur, 208016, India
| | - Deep Chakraborty
- Department of Environmental Science, Amity School of Life Sciences (ASLS), Amity University, Madhya Pradesh (AUMP), Gwalior, 474005, Madhya Pradesh, India
| | - Subrata Mahanta
- Department of Chemistry, NIT Jamshedpur, Adityapur, Jamshedpur, 831014, Jharkhand, India
| | - Anupam Das
- Department of Soil Science and Agricultural Chemistry, Bihar Agricultural University, Sabour, Bhagalpur, 813210, India
| | - Shuvasish Choudhury
- Plant Stress Biology & Metabolomics Laboratory, Department of Life Science and Bioinformatics, Assam University, Silchar, 788011, Assam, India
| | - Marian Brestic
- Institute of Plant and Environmental Sciences, Slovak University of Agriculture, Nitra, Tr. A. Hlinku 2, 949 01, Nitra, Slovak, Slovakia
| | - Tahani Awad Alahmadi
- Department of Pediatrics, College of Medicine and King Khalid University Hospital, King Saud University, Medical City, P.O. Box 2925, Riyadh, 11461, Saudi Arabia
| | - Mohammad Javed Ansari
- Department of Botany, Hindu College Moradabad (Mahatma Jyotiba Phule Rohilkhand University, Bareilly), Moradabad, 244001, Uttar Pradesh, India
| | - Shubhas Chandra Santra
- Department of Environmental Science, University of Kalyani, Kalyani, 741235, West Bengal, India
| | - Akbar Hossain
- Division of Soil Science, Bangladesh Wheat and Maize Research Institute, Dinajpur, 5200, Bangladesh
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Sivagnanam S, Yeu S, Lin K, Sakai S, Garzon F, Yoshimoto K, Prantzalos K, Upadhyaya DP, Majumdar A, Sahoo SS, Lytton WW. Towards building a trustworthy pipeline integrating Neuroscience Gateway and Open Science Chain. Database (Oxford) 2024; 2024:baae023. [PMID: 38581360 PMCID: PMC10998337 DOI: 10.1093/database/baae023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 02/22/2024] [Accepted: 03/11/2024] [Indexed: 04/08/2024]
Abstract
When the scientific dataset evolves or is reused in workflows creating derived datasets, the integrity of the dataset with its metadata information, including provenance, needs to be securely preserved while providing assurances that they are not accidentally or maliciously altered during the process. Providing a secure method to efficiently share and verify the data as well as metadata is essential for the reuse of the scientific data. The National Science Foundation (NSF) funded Open Science Chain (OSC) utilizes consortium blockchain to provide a cyberinfrastructure solution to maintain integrity of the provenance metadata for published datasets and provides a way to perform independent verification of the dataset while promoting reuse and reproducibility. The NSF- and National Institutes of Health (NIH)-funded Neuroscience Gateway (NSG) provides a freely available web portal that allows neuroscience researchers to execute computational data analysis pipeline on high performance computing resources. Combined, the OSC and NSG platforms form an efficient, integrated framework to automatically and securely preserve and verify the integrity of the artifacts used in research workflows while using the NSG platform. This paper presents the results of the first study that integrates OSC-NSG frameworks to track the provenance of neurophysiological signal data analysis to study brain network dynamics using the Neuro-Integrative Connectivity tool, which is deployed in the NSG platform. Database URL: https://www.opensciencechain.org.
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Affiliation(s)
- S Sivagnanam
- San Diego Supercomputer Center, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
- Biomedical Engineering, SUNY Downstate Health Sciences University, 450 Clarkson Avenue, Brooklyn, NY 11203, USA
| | - S Yeu
- San Diego Supercomputer Center, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
| | - K Lin
- San Diego Supercomputer Center, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
| | - S Sakai
- San Diego Supercomputer Center, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
| | - F Garzon
- San Diego Supercomputer Center, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
| | - K Yoshimoto
- San Diego Supercomputer Center, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
| | - K Prantzalos
- School of Medicine, Case Western University, 9501 Euclid Ave, Cleveland, OH 44106, USA
| | - D P Upadhyaya
- School of Medicine, Case Western University, 9501 Euclid Ave, Cleveland, OH 44106, USA
| | - A Majumdar
- San Diego Supercomputer Center, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
| | - S S Sahoo
- School of Medicine, Case Western University, 9501 Euclid Ave, Cleveland, OH 44106, USA
| | - W W Lytton
- Biomedical Engineering, SUNY Downstate Health Sciences University, 450 Clarkson Avenue, Brooklyn, NY 11203, USA
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Ananth K, Majumdar A, Singh T. Inflammatory arthritis post-COVID-19 infection affecting the temporomandibular joint. Br Dent J 2024; 236:615. [PMID: 38671113 DOI: 10.1038/s41415-024-7356-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Accepted: 03/04/2024] [Indexed: 04/28/2024]
Affiliation(s)
- K Ananth
- Waikato Hospital, Hamilton, New Zealand.
| | - A Majumdar
- Waikato Hospital, Hamilton, New Zealand.
| | - T Singh
- Waikato Hospital, Hamilton, New Zealand.
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Mridha D, Sarkar J, Majumdar A, Sarkar K, Maiti A, Acharya K, Das M, Chen H, Niazi NK, Roychowdhury T. Evaluation of iron-modified biochar on arsenic accumulation by rice: a pathway to assess human health risk from cooked rice. Environ Sci Pollut Res Int 2024; 31:23549-23567. [PMID: 38421541 DOI: 10.1007/s11356-024-32644-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 02/21/2024] [Indexed: 03/02/2024]
Abstract
Arsenic (As) contamination of rice grain poses a serious threat to human health. Therefore, it is crucial to reduce the bioavailability of As in the soil and its accumulation in rice grains to ensure the safety of food and human health. In this study, mango (Mangifera indica) leaf-derived biochars (MBC) were synthesized and modified with iron (Fe) to produce FeMBC. In this study, 0.5 and 1% (w/w) doses of MBC and FeMBC were used. The results showed that 1% FeMBC enhanced the percentage of filled grains/panicle and biomass yield by 17 and 27%, respectively, compared to the control. The application of 0.5 and 1% FeMBC significantly (p < 0.05) reduced bioavailable soil As concentration by 33 and 48%, respectively, in comparison to the control. The even higher As flux in the control group as compared to the biochar-treated groups indicates the lower As availability to biochar-treated rice plant. The concentration of As in rice grains was reduced by 6 and 31% in 1% MBC and 1% FeMBC, respectively, compared to the control. The reduction in As concentration in rice grain under 1% FeMBC was more pronounced due to reduced bioavailability of As and enhanced formation of Fe-plaque. This may restrict the entry of As through the rice plant. The concentrations of micronutrients (such as Fe, Zn, Se, and Mn) in brown rice were also improved after the application of both MBC and FeMBC in comparison to the control. This study indicates that the consumption of parboiled rice reduces the health risk associated with As compared to cooked sunned rice. It emphasizes that 1% MBC and 1% FeMBC have great potential to decrease the uptake of As in rice grains.
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Affiliation(s)
- Deepanjan Mridha
- School of Environmental Studies, Jadavpur University, Kolkata, 700032, India
| | - Jit Sarkar
- Molecular and Applied Mycology and Plant Pathology Laboratory, Centre of Advanced Study, Department of Botany, University of Calcutta, Kolkata, 700019, India
| | - Arnab Majumdar
- School of Environmental Studies, Jadavpur University, Kolkata, 700032, India
| | - Kunal Sarkar
- Department of Zoology, University of Calcutta, Kolkata, 700019, India
| | - Anupam Maiti
- Department of Chemistry, Jadavpur University, Kolkata, 700032, India
| | - Krishnendu Acharya
- Molecular and Applied Mycology and Plant Pathology Laboratory, Centre of Advanced Study, Department of Botany, University of Calcutta, Kolkata, 700019, India
| | - Madhusudan Das
- Department of Zoology, University of Calcutta, Kolkata, 700019, India
| | - Hao Chen
- School of Agriculture, Fisheries and Human Sciences, The University of Arkansas at Pine Bluff, Pine Bluff, AR, USA
| | - Nabeel Khan Niazi
- Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad, Faisalabad, 38040, Pakistan
| | - Tarit Roychowdhury
- School of Environmental Studies, Jadavpur University, Kolkata, 700032, India.
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Shipman A, Majumdar A, Feng Z, Lovreglio R. A quantitative comparison of virtual and physical experimental paradigms for the investigation of pedestrian responses in hostile emergencies. Sci Rep 2024; 14:6892. [PMID: 38519486 PMCID: PMC10959975 DOI: 10.1038/s41598-024-55253-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 02/20/2024] [Indexed: 03/25/2024] Open
Abstract
Modern experiments investigating human behaviour in emergencies are often implemented in virtual reality (VR), due to the increased experimental control and improved ethical viability over physical reality (PR). However, there remain questions regarding the validity of the results obtained from these environments, and no full validation of VR experiments has yet appeared. This study compares the results of two sets of experiments (in VR and PR paradigms) investigating behavioural responses to knife-based hostile aggressors. This study quantitatively analyses these results to ascertain whether the different paradigms generate different responses, thereby assessing the use of virtual reality as a data generating paradigm for emergencies. The results show that participants reported almost identical psychological responses. This study goes on to identify minimal differences in movement responses across a range of predictors, noting a difference in responses between genders. As a result, this study concludes that VR can produce similarly valid data as physical experiments when investigating human behaviour in hostile emergencies, and that it is therefore possible to conduct realistic experimentation through VR environments while retaining confidence in the resulting data. This has major implications for the future of this type of research, and furthermore suggests that VR experimentation should be performed for both existing and new critical infrastructure to understand human responses in hostile scenarios.
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Affiliation(s)
- Alastair Shipman
- Civil and Environmental Engineering, Imperial College London, London, UK.
| | - Arnab Majumdar
- Civil and Environmental Engineering, Imperial College London, London, UK
| | - Zhenan Feng
- School of the Built Environment, Massey University, Palmerston North, New Zealand
| | - Ruggiero Lovreglio
- School of the Built Environment, Massey University, Palmerston North, New Zealand
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Majumdar A, Upadhyay MK, Giri B, Yadav P, Moulick D, Sarkar S, Thakur BK, Sahu K, Srivastava AK, Buck M, Tibbett M, Jaiswal MK, Roychowdhury T. Sustainable water management in rice cultivation reduces arsenic contamination, increases productivity, microbial molecular response, and profitability. J Hazard Mater 2024; 466:133610. [PMID: 38309156 DOI: 10.1016/j.jhazmat.2024.133610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 01/18/2024] [Accepted: 01/21/2024] [Indexed: 02/05/2024]
Abstract
Arsenic (As) and silicon (Si) are two structurally competitive natural elements where Si minimises As accumulation in rice plants, and based on this two-year field trial, the study proposes adopting alternating wetting and drying (AWD) irrigation as a sustainable water management strategy allowing greater Si availability. This field-based project is the first report on AWD's impact on As-Si distribution in fluvio-alluvial soils of the entire Ganga valley (24 study sites, six divisions), seasonal variance (pre-monsoon and monsoon), rice plant anatomy and productivity, soil microbial diversity, microbial gene ontology profiling and associated metabolic pathways. Under AWD to flooded and pre-monsoon to monsoon cultivations, respectively, greater Si availability was achieved and As-bioavailability was reduced by 8.7 ± 0.01-9.2 ± 0.02% and 25.7 ± 0.09-26.1 ± 0.01%. In the pre-monsoon and monsoon seasons, the physiological betterment of rice plants led to the high rice grain yield under AWD improved by 8.4 ± 0.07% and 10.0 ± 0.07%, proving the economic profitability. Compared to waterlogging, AWD evidences as an optimal soil condition for supporting soil microbial communities in rice fields, allowing diverse metabolic activities, including As-resistance, and active expression of As-responsive genes and gene products. Greater expressions of gene ontological terms and complex biochemical networking related to As metabolism under AWD proved better cellular, genetic and environmental responsiveness in microbial communities. Finally, by implementing AWD, groundwater usage can be reduced, lowering the cost of pumping and field management and generating an economic profit for farmers. These combined assessments prove the acceptability of AWD for the establishment of multiple sustainable development goals (SDGs).
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Affiliation(s)
- Arnab Majumdar
- School of Environmental Studies, Jadavpur University, Kolkata 700032, India; Department of Earth Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal 741246, India.
| | - Munish Kumar Upadhyay
- Centre for Environmental Science & Engineering, Department of Civil Engineering, Indian Institute of Technology Kanpur, 208016, India
| | - Biswajit Giri
- Department of Earth Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal 741246, India
| | - Poonam Yadav
- Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Debojyoti Moulick
- Department of Environmental Science, University of Kalyani, Nadia, West Bengal 741235, India
| | - Sukamal Sarkar
- School of Agriculture and Rural Development, Ramakrishna Mission Vivekananda Educational and Research Institute, Ramakrishna Mission Ashrama, Narendrapur, Kolkata 700103, India
| | - Barun Kumar Thakur
- Department of Economics, FLAME University, Pune, Maharashtra 412115, India
| | - Kashinath Sahu
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal 741246, India
| | - Ashish Kumar Srivastava
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai, Maharashtra 400085, India
| | - Martin Buck
- Department of Life Science, Faculty of Natural Sciences, Imperial College, London SW7 2AZ, UK
| | - Mark Tibbett
- Department of Sustainable Land Management and Soil Research Centre, School of Agriculture Policy and Development, University of Reading, Reading RG6 6AR, UK
| | - Manoj Kumar Jaiswal
- Department of Earth Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal 741246, India
| | - Tarit Roychowdhury
- School of Environmental Studies, Jadavpur University, Kolkata 700032, India
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Mondal R, Majumdar A, Sarkar S, Goswami C, Joardar M, Das A, Mukhopadhyay PK, Roychowdhury T. An extensive review of arsenic dynamics and its distribution in soil-aqueous-rice plant systems in south and Southeast Asia with bibliographic and meta-data analysis. Chemosphere 2024; 352:141460. [PMID: 38364927 DOI: 10.1016/j.chemosphere.2024.141460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 02/12/2024] [Accepted: 02/13/2024] [Indexed: 02/18/2024]
Abstract
Millions of people worldwide are affected by arsenic (As) contamination, particularly in South and Southeast Asian countries, where large-scale dependence on the usage of As-contaminated groundwater in drinking and irrigation is a familiar practice. Rice (Oryza sativa) cultivation is commonly done in South and Southeast Asian countries as a preferable crop which takes up more As than any other cereals. The present article has performed a scientific meta-data analysis and extensive bibliometric analysis to demonstrate the research trend in global rice As contamination scenario in the timeframe of 1980-2023. This study identified that China contributes most with the maximum number of publications followed by India, USA, UK and Bangladesh. The two words 'arsenic' and 'rice' have been identified as the most dominant keywords used by the authors, found through co-occurrence cluster analysis with author keyword association study. The comprehensive perceptive attained about the factors affecting As load in plant tissue and the nature of the micro-environment augment the contamination of rice cultivars in the region. This extensive review analyses soil parameters through meta-data regression assessment that influence and control As dynamics in soil with its further loading into rice grains and presents that As content and OM are inversely related and slightly correlated to the pH increment of the soil. Additionally, irrigation and water management practices have been found as a potential modulator of soil As concentration and bioavailability, presented through a linear fit with 95% confidence interval method.
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Affiliation(s)
- Rubia Mondal
- Department of Life Sciences, Presidency University, Kolkata, India
| | - Arnab Majumdar
- School of Environmental Studies, Jadavpur University, Kolkata, India
| | - Sukamal Sarkar
- Divison of Agronomy, School of Agriculture and Rural Development, Ramakrishna Mission Vivekananda Educational and Research Institute, Ramakrishna Mission Ashrama, Narendrapur, Kolkata, India
| | - Chandrima Goswami
- Department of Environmental Studies, Rabindra Bharati University, Kolkata, India
| | - Madhurima Joardar
- School of Environmental Studies, Jadavpur University, Kolkata, India
| | - Antara Das
- School of Environmental Studies, Jadavpur University, Kolkata, India
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Majumdar A, Müller M, Busch S. Computation of X-ray and Neutron Scattering Patterns to Benchmark Atomistic Simulations against Experiments. Int J Mol Sci 2024; 25:1547. [PMID: 38338829 PMCID: PMC10855162 DOI: 10.3390/ijms25031547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 12/23/2023] [Accepted: 12/26/2023] [Indexed: 02/12/2024] Open
Abstract
Molecular Dynamics simulations study material structure and dynamics at the atomic level. X-ray and neutron scattering experiments probe exactly the same time- and length scales as the simulations. In order to benchmark simulations against measured scattering data, a program is required that computes scattering patterns from simulations with good single-core performance and support for parallelization. In this work, the existing program Sassena is used as a potent solution to this requirement for a range of scattering methods, covering pico- to nanosecond dynamics, as well as the structure from some Ångströms to hundreds of nanometers. In the case of nanometer-level structures, the finite size of the simulation box, which is referred to as the finite size effect, has to be factored into the computations for which a method is described and implemented into Sassena. Additionally, the single-core and parallelization performance of Sassena is investigated, and several improvements are introduced.
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Affiliation(s)
- Arnab Majumdar
- German Engineering Materials Science Centre (GEMS) at Heinz Maier-Leibnitz Zentrum (MLZ), Helmholtz-Zentrum Hereon GmbH, Lichtenbergstr. 1, 85748 Garching, Germany; (A.M.); (M.M.)
| | - Martin Müller
- German Engineering Materials Science Centre (GEMS) at Heinz Maier-Leibnitz Zentrum (MLZ), Helmholtz-Zentrum Hereon GmbH, Lichtenbergstr. 1, 85748 Garching, Germany; (A.M.); (M.M.)
- Institute of Materials Physics, Helmholtz-Zentrum Hereon GmbH, Max-Planck-Str. 1, 21502 Geesthacht, Germany
- Institut für Experimentelle und Angewandte Physik (IEAP), Christian-Albrechts-Universität zu Kiel, Leibnizstr. 19, 24098 Kiel, Germany
| | - Sebastian Busch
- German Engineering Materials Science Centre (GEMS) at Heinz Maier-Leibnitz Zentrum (MLZ), Helmholtz-Zentrum Hereon GmbH, Lichtenbergstr. 1, 85748 Garching, Germany; (A.M.); (M.M.)
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Moulick D, Mukherjee A, Das A, Roy A, Majumdar A, Dhar A, Pattanaik BK, Chowardhara B, Ghosh D, Upadhyay MK, Yadav P, Hazra S, Sarkar S, Mahanta S, Santra SC, Choudhury S, Maitra S, Mishra UN, Bhutia KL, Skalicky M, Obročník O, Bárek V, Brestic M, Hossain A. Selenium - An environmentally friendly micronutrient in agroecosystem in the modern era: An overview of 50-year findings. Ecotoxicol Environ Saf 2024; 270:115832. [PMID: 38141336 DOI: 10.1016/j.ecoenv.2023.115832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 12/04/2023] [Accepted: 12/12/2023] [Indexed: 12/25/2023]
Abstract
Agricultural productivity is constantly being forced to maintain yield stability to feed the enormously growing world population. However, shrinking arable and nutrient-deprived soil and abiotic and biotic stressor (s) in different magnitudes put additional challenges to achieving global food security. Though well-defined, the concept of macro, micronutrients, and beneficial elements is from a plant nutritional perspective. Among various micronutrients, selenium (Se) is essential in small amounts for the life cycle of organisms, including crops. Selenium has the potential to improve soil health, leading to the improvement of productivity and crop quality. However, Se possesses an immense encouraging phenomenon when supplied within the threshold limit, also having wide variations. The supplementation of Se has exhibited promising outcomes in lessening biotic and abiotic stress in various crops. Besides, bulk form, nano-Se, and biogenic-Se also revealed some merits and limitations. Literature suggests that the possibilities of biogenic-Se in stress alleviation and fortifying foods are encouraging. In this article, apart from adopting a combination of a conventional extensive review of the literature and bibliometric analysis, the authors have assessed the journey of Se in the "soil to spoon" perspective in a diverse agroecosystem to highlight the research gap area. There is no doubt that the time has come to seriously consider the tag of beneficial elements associated with Se, especially in the drastic global climate change era.
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Affiliation(s)
- Debojyoti Moulick
- Department of Environmental Science, University of Kalyani, Nadia, West Bengal 741235, India; Plant Stress Biology and Metabolomics Laboratory, Department of Life Science & Bioinformatics, H.G. Khorana School of Life Sciences, Assam University, Silchar 788011, India.
| | - Arkabanee Mukherjee
- Indian Institute of Tropical Meteorology, Dr Homi Bhabha Rd, Panchawati, Pashan, Pune, Maharashtra 411008, India.
| | - Anupam Das
- Department of Soil Science and Agricultural Chemistry, Bihar Agricultural University, Sabour, Bhagalpur, India.
| | - Anirban Roy
- School of Agriculture and Rural Development, Faculty Centre for IRDM, Ramakrishna Mission Vi-Vekananda Educational and Research Institute, Ramakrishna Mission Ashrama, Narendrapur, Kolkata 700103, India.
| | - Arnab Majumdar
- School of Environmental Studies, Jadavpur University, Kolkata 700032, India.
| | - Anannya Dhar
- School of Agriculture and Rural Development, Faculty Centre for IRDM, Ramakrishna Mission Vi-Vekananda Educational and Research Institute, Ramakrishna Mission Ashrama, Narendrapur, Kolkata 700103, India.
| | - Binaya Kumar Pattanaik
- Institute of Environment Education and Research, Bharati Vidyapeeth (Deemed to be University), Pune 411043, India.
| | - Bhaben Chowardhara
- Department of Botany, Faculty of Science and Technology, Arunachal University of Studies NH-52, Knowledge City, District- Namsai, Arunachal Pradesh 792103, India.
| | - Dibakar Ghosh
- Division of Agronomy, ICAR-Indian Institute of Water Management, Bhubaneswar 751023, Odisha, India.
| | - Munish Kumar Upadhyay
- Centre for Environmental Science & Engineering, Department of Civil Engineering, Indian Institute of Technology Kanpur, 208016, India.
| | - Poonam Yadav
- Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, India.
| | - Swati Hazra
- School of Agricultural Sciences, Sharda University, Greater Noida, UP 201310, India.
| | - Sukamal Sarkar
- School of Agriculture and Rural Development, Faculty Centre for IRDM, Ramakrishna Mission Vi-Vekananda Educational and Research Institute, Ramakrishna Mission Ashrama, Narendrapur, Kolkata 700103, India.
| | - Subrata Mahanta
- Department of Chemistry, National Institute of Technology Jamshedpur, Adityapur, Jamshedpur, Jharkhand 831014, India.
| | - S C Santra
- Department of Environmental Science, University of Kalyani, Nadia, West Bengal 741235, India.
| | - Shuvasish Choudhury
- Plant Stress Biology and Metabolomics Laboratory, Department of Life Science & Bioinformatics, H.G. Khorana School of Life Sciences, Assam University, Silchar 788011, India.
| | - Sagar Maitra
- Department of Agronomy and Agroforestry, Centurion University of Technology and Management, Odisha 761211, India.
| | - Udit Nandan Mishra
- Department of Crop Physiology & Biochemistry, Faculty of Agriculture, Sri Sri University, Sri Sri Vihar, Bidyadharpur Arilo, Ward No-03, Cuttack, Odisha 754006, India.
| | - Karma L Bhutia
- Department of Agricultural Biotechnology & Molecular Biology, College of Basic Sciences and Humanities, Dr. Rajendra Prasad Central Agricultural University, Pusa (Samastipur), Bihar 848 125, India.
| | - Milan Skalicky
- Department of Botany and Plant Physiology, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamycka 129, 165 00 Prague, Czechia.
| | - Oliver Obročník
- Department of Water Resources and Environmental Engineering, Faculty of Horticulture and Landscape Engineering, Slovak University of Agriculture, Nitra, Tr. A. Hlinku 2, 949 01 Nitra, Slovakia.
| | - Viliam Bárek
- Department of Water Resources and Environmental Engineering, Faculty of Horticulture and Landscape Engineering, Slovak University of Agriculture, Nitra, Tr. A. Hlinku 2, 949 01 Nitra, Slovakia.
| | - Marian Brestic
- Department of Botany and Plant Physiology, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamycka 129, 165 00 Prague, Czechia; Institute of Plant and Environmental Sciences, Slovak University of Agriculture, Nitra, Tr. A. Hlinku 2, 949 01 Nitra, Slovak.
| | - Akbar Hossain
- Division of Soil Science, Bangladesh Wheat and Maize Research Institute, Dinajpur 5200, Bangladesh.
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Tsai CY, Majumdar A, Wang Y, Hsu WH, Kang JH, Lee KY, Tseng CH, Kuan YC, Lee HC, Wu CJ, Houghton R, Cheong HI, Manole I, Lin YT, Li LYJ, Liu WT. Machine learning model for aberrant driving behaviour prediction using heart rate variability: a pilot study involving highway bus drivers. Int J Occup Saf Ergon 2023; 29:1429-1439. [PMID: 36281493 DOI: 10.1080/10803548.2022.2135281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
Objectives. Current approaches via physiological features detecting aberrant driving behaviour (ADB), including speeding, abrupt steering, hard braking and aggressive acceleration, are developing. This study proposes using machine learning approaches incorporating heart rate variability (HRV) parameters to predict ADB occurrence. Methods. Naturalistic driving data of 10 highway bus drivers in Taiwan from their daily routes were collected for 4 consecutive days. Their driving behaviours and physiological data during a driving task were determined using a navigation mobile application and heart rate watch. Participants' self-reported data on sleep, driving-related experience, open-source data on weather and the traffic congestion level were obtained. Five machine learning models - logistic regression, random forest, naive Bayes, support vector machine and gated recurrent unit (GRU) - were employed to predict ADBs. Results. Most drivers with ADB had low sleep efficiency (≤80%), with significantly higher scores in driver behaviour questionnaire subcategories of lapses and errors and in the Karolinska sleepiness scale than those without ADBs. Moreover, HRV parameters were significantly different between baseline and pre-ADB event measurements. GRU had the highest accuracy (81.16-84.22%). Conclusions. Sleep deficit may be related to the increased fatigue level and ADB occurrence predicted from HRV-based models among bus drivers.
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Affiliation(s)
- Cheng-Yu Tsai
- Department of Civil and Environmental Engineering, Imperial College London, UK
| | - Arnab Majumdar
- Department of Civil and Environmental Engineering, Imperial College London, UK
| | - Yija Wang
- Department of Civil and Environmental Engineering, Imperial College London, UK
| | - Wen-Hua Hsu
- College of Medicine, Taipei Medical University, Taiwan
| | - Jiunn-Horng Kang
- Department of Physical Medicine and Rehabilitation, Taipei Medical University Hospital, Taiwan
- Research Centre of Artificial Intelligence in Medicine, Taipei Medical University, Taiwan
- College of Biomedical Engineering, Taipei Medical University, Taiwan
| | - Kang-Yun Lee
- Shuang Ho Hospital, Taipei Medical University, Taiwan
| | | | - Yi-Chun Kuan
- College of Medicine, Taipei Medical University, Taiwan
- Shuang Ho Hospital, Taipei Medical University, Taiwan
- Taipei Neuroscience Institute, Taipei Medical University, Taiwan
- Dementia Centre, Taipei Medical University-Shuang Ho Hospital, Taiwan
| | - Hsin-Chien Lee
- Department of Psychiatry, Taipei Medical University Hospital, Taiwan
| | - Cheng-Jung Wu
- Shuang Ho Hospital, Taipei Medical University, Taiwan
| | - Robert Houghton
- Department of Civil and Environmental Engineering, Imperial College London, UK
| | - He-In Cheong
- Department of Civil and Environmental Engineering, Imperial College London, UK
| | - Iulia Manole
- Department of Civil and Environmental Engineering, Imperial College London, UK
| | - Yin-Tzu Lin
- Department of Medical Imaging and Intervention, Chang Gung Memorial Hospital, Taiwan
| | - Lok-Yee Joyce Li
- Department of Medicine, Shin Kong Wu-Ho-Su Memorial Hospital, Taiwan
| | - Wen-Te Liu
- College of Medicine, Taipei Medical University, Taiwan
- Research Centre of Artificial Intelligence in Medicine, Taipei Medical University, Taiwan
- Shuang Ho Hospital, Taipei Medical University, Taiwan
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Tsai CY, Liu M, Huang HT, Hsu WH, Kuan YC, Majumdar A, Lee KY, Feng PH, Tseng CH, Chen KY, Kang JH, Lee HC, Wu CJ, Liu WT. Association between air pollutant exposure, body water distribution and sleep disorder indices in individuals with low-arousal-threshold obstructive sleep apnoea. BMJ Open Respir Res 2023; 10:e001802. [PMID: 37940353 PMCID: PMC10632889 DOI: 10.1136/bmjresp-2023-001802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Accepted: 10/27/2023] [Indexed: 11/10/2023] Open
Abstract
BACKGROUND Air pollution may alter body water distribution, it may also be linked to low-arousal-threshold obstructive sleep apnoea (low-ArTH OSA). Here, we explored the mediation effects of air pollution on body water distribution and low-ArTH OSA manifestations. METHODS In this retrospective study, we obtained sleep centre data from healthy participants and patients with low-ArTH OSA (N=1924) in northern Taiwan. Air pollutant exposure at different time intervals (1, 3, 6 and 12 months) was estimated using the nearest station estimation method, and government air-quality data were also obtained. Regression models were used to assess the associations of estimated exposure, sleep disorder indices and body water distribution with the risk of low-ArTH OSA. Mediation analysis was performed to explore the relationships between air pollution, body water distribution and sleep disorder indices. RESULTS First, exposure to particulate matter (PM) with a diameter of ≤10 µm (PM10) for 1 and 3 months and exposure to PM with a diameter of ≤2.5 µm (PM2.5) for 3 months were significantly associated with the Apnoea-Hypopnoea Index (AHI), Oxygen Desaturation Index (ODI), Arousal Index (ArI) and intracellular-to-extracellular water ratio (I-E water ratio). Significant associations were observed between the risk of low-ArTH OSA and 1- month exposure to PM10 (OR 1.42, 95% CI 1.09 to 1.84), PM2.5 (OR 1.33, 95% CI 1.02 to 1.74) and ozone (OR 1.27, 95% CI 1.01 to 1.6). I-E water ratio alternation caused by 1-month exposure to PM10 and 3-month exposure to PM2.5 and PM10 had partial mediation effects on AHI and ODI. CONCLUSION Air pollution can directly increase sleep disorder indices (AHI, ODI and ArI) and alter body water distribution, thus mediating the risk of low-ArTH OSA.
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Affiliation(s)
- Cheng-Yu Tsai
- Department of Civil and Environmental Engineering, Imperial College London, London, UK
- Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Medical University-Shuang Ho Hospital Ministry of Health and Welfare, New Taipei City, Taiwan
| | - Ming Liu
- Department of Biology, University of Oxford, Oxford, UK
| | - Huei-Tyng Huang
- Department of Medical Physics and Biomedical Engineering, University College London, London, UK
| | - Wen-Hua Hsu
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Yi-Chun Kuan
- Sleep Center, Taipei Medical University-Shuang Ho Hospital Ministry of Health and Welfare, New Taipei City, Taiwan
- Department of Neurology, Taipei Medical University-Shuang Ho Hospital Ministry of Health and Welfare, New Taipei, Taiwan
- Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Neuroscience Institute, Taipei Medical University, Taipei, Taiwan
| | - Arnab Majumdar
- Department of Civil and Environmental Engineering, Imperial College London, London, UK
| | - Kang-Yun Lee
- Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Medical University-Shuang Ho Hospital Ministry of Health and Welfare, New Taipei City, Taiwan
- Division of Pulmonary Medicine,Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Po-Hao Feng
- Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Medical University-Shuang Ho Hospital Ministry of Health and Welfare, New Taipei City, Taiwan
- Division of Pulmonary Medicine,Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Chien-Hua Tseng
- Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Medical University-Shuang Ho Hospital Ministry of Health and Welfare, New Taipei City, Taiwan
- Division of Pulmonary Medicine,Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Kuan-Yuan Chen
- Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Medical University-Shuang Ho Hospital Ministry of Health and Welfare, New Taipei City, Taiwan
| | - Jiunn-Horng Kang
- Research Center of Artificial Intelligence in Medicine, Taipei Medical University College of Medicine, Taipei, Taiwan
- Department of Physical Medicine and Rehabilitation, Taipei Medical University Hospital, Taipei, Taiwan
- Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, Taiwan
| | - Hsin-Chien Lee
- Department of Psychiatry, Taipei Medical University Hospital, Taipei, Taiwan
| | - Cheng-Jung Wu
- Department of Otolaryngology, Taipei Medical University-Shuang Ho Hospital Ministry of Health and Welfare, New Taipei, Taiwan
| | - Wen-Te Liu
- Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Medical University-Shuang Ho Hospital Ministry of Health and Welfare, New Taipei City, Taiwan
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Sleep Center, Taipei Medical University-Shuang Ho Hospital Ministry of Health and Welfare, New Taipei City, Taiwan
- Research Center of Artificial Intelligence in Medicine, Taipei Medical University College of Medicine, Taipei, Taiwan
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Hazra S, Moulick D, Mukherjee A, Sahib S, Chowardhara B, Majumdar A, Upadhyay MK, Yadav P, Roy P, Santra SC, Mandal S, Nandy S, Dey A. Evaluation of efficacy of non-coding RNA in abiotic stress management of field crops: Current status and future prospective. Plant Physiol Biochem 2023; 203:107940. [PMID: 37738864 DOI: 10.1016/j.plaphy.2023.107940] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 07/23/2023] [Accepted: 08/04/2023] [Indexed: 09/24/2023]
Abstract
Abiotic stresses are responsible for the major losses in crop yield all over the world. Stresses generate harmful ROS which can impair cellular processes in plants. Therefore, plants have evolved antioxidant systems in defence against the stress-induced damages. The frequency of occurrence of abiotic stressors has increased several-fold due to the climate change experienced in recent times and projected for the future. This had particularly aggravated the risk of yield losses and threatened global food security. Non-coding RNAs are the part of eukaryotic genome that does not code for any proteins. However, they have been recently found to have a crucial role in the responses of plants to both abiotic and biotic stresses. There are different types of ncRNAs, for example, miRNAs and lncRNAs, which have the potential to regulate the expression of stress-related genes at the levels of transcription, post-transcription, and translation of proteins. The lncRNAs are also able to impart their epigenetic effects on the target genes through the alteration of the status of histone modification and organization of the chromatins. The current review attempts to deliver a comprehensive account of the role of ncRNAs in the regulation of plants' abiotic stress responses through ROS homeostasis. The potential applications ncRNAs in amelioration of abiotic stresses in field crops also have been evaluated.
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Affiliation(s)
- Swati Hazra
- Sharda School of Agricultural Sciences, Sharda University, Greater Noida, Uttar Pradesh 201310, India.
| | - Debojyoti Moulick
- Department of Environmental Science, University of Kalyani, Nadia, West Bengal 741235, India.
| | | | - Synudeen Sahib
- S. S. Cottage, Njarackal, P.O.: Perinad, Kollam, 691601, Kerala, India.
| | - Bhaben Chowardhara
- Department of Botany, Faculty of Science and Technology, Arunachal University of Studies, Arunachal Pradesh 792103, India.
| | - Arnab Majumdar
- Department of Earth Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, West Bengal 741246, India.
| | - Munish Kumar Upadhyay
- Department of Civil Engineering, Indian Institute of Technology Kanpur, Uttar Pradesh 208016, India.
| | - Poonam Yadav
- Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India.
| | - Priyabrata Roy
- Department of Molecular Biology and Biotechnology, University of Kalyani, West Bengal 741235, India.
| | - Subhas Chandra Santra
- Department of Environmental Science, University of Kalyani, Nadia, West Bengal 741235, India.
| | - Sayanti Mandal
- Department of Biotechnology, Dr. D. Y. Patil Arts, Commerce & Science College (affiliated to Savitribai Phule Pune University), Sant Tukaram Nagar, Pimpri, Pune, Maharashtra-411018, India.
| | - Samapika Nandy
- School of Pharmacy, Graphic Era Hill University, Bell Road, Clement Town, Dehradun, 248002, Uttarakhand, India; Department of Botany, Vedanta College, 33A Shiv Krishna Daw Lane, Kolkata-700054, India.
| | - Abhijit Dey
- Department of Life Sciences, Presidency University, Kolkata, West Bengal 700073, India.
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Tsai CY, Huang HT, Liu M, Cheng WH, Hsu WH, Kuan YC, Majumdar A, Lee KY, Feng PH, Tseng CH, Chen KY, Kang JH, Lee HC, Wu CJ, Liu WT. Associations between air pollution, intracellular-to-extracellular water distribution, and obstructive sleep apnea manifestations. Front Public Health 2023; 11:1175203. [PMID: 37397706 PMCID: PMC10310528 DOI: 10.3389/fpubh.2023.1175203] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 05/16/2023] [Indexed: 07/04/2023] Open
Abstract
Background Exposure to air pollution may be a risk factor for obstructive sleep apnea (OSA) because air pollution may alter body water distribution and aggravate OSA manifestations. Objectives This study aimed to investigate the mediating effects of air pollution on the exacerbation of OSA severity through body water distribution. Methods This retrospective study analyzed body composition and polysomnographic data collected from a sleep center in Northern Taiwan. Air pollution exposure was estimated using an adjusted nearest method, registered residential addresses, and data from the databases of government air quality motioning stations. Next, regression models were employed to determine the associations between estimated air pollution exposure levels (exposure for 1, 3, 6, and 12 months), OSA manifestations (sleep-disordered breathing indices and respiratory event duration), and body fluid parameters (total body water and body water distribution). The association between air pollution and OSA risk was determined. Results Significant associations between OSA manifestations and short-term (1 month) exposure to PM2.5 and PM10 were identified. Similarly, significant associations were identified among total body water and body water distribution (intracellular-to-extracellular body water distribution), short-term (1 month) exposure to PM2.5 and PM10, and medium-term (3 months) exposure to PM10. Body water distribution might be a mediator that aggravates OSA manifestations, and short-term exposure to PM2.5 and PM10 may be a risk factor for OSA. Conclusion Because exposure to PM2.5 and PM10 may be a risk factor for OSA that exacerbates OSA manifestations and exposure to particulate pollutants may affect OSA manifestations or alter body water distribution to affect OSA manifestations, mitigating exposure to particulate pollutants may improve OSA manifestations and reduce the risk of OSA. Furthermore, this study elucidated the potential mechanisms underlying the relationship between air pollution, body fluid parameters, and OSA severity.
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Affiliation(s)
- Cheng-Yu Tsai
- Department of Civil and Environmental Engineering, Imperial College London, London, United Kingdom
- Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Medical University-Shuang Ho Hospital, New Taipei City, Taiwan
| | - Huei-Tyng Huang
- Department of Medical Physics and Biomedical Engineering, University College London, London, United Kingdom
| | - Ming Liu
- Department of Biology, University of Oxford, Oxfordshire, United Kingdom
| | - Wun-Hao Cheng
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Respiratory Therapy, Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Medical University-Wan Fang Hospital, Taipei, Taiwan
| | - Wen-Hua Hsu
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Yi-Chun Kuan
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
- Department of Neurology, Taipei Medical University-Shuang Ho Hospital, New Taipei City, Taiwan
- Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Taipei Neuroscience Institute, Taipei Medical University, Taipei, Taiwan
| | - Arnab Majumdar
- Department of Civil and Environmental Engineering, Imperial College London, London, United Kingdom
| | - Kang-Yun Lee
- Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Medical University-Shuang Ho Hospital, New Taipei City, Taiwan
| | - Po-Hao Feng
- Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Medical University-Shuang Ho Hospital, New Taipei City, Taiwan
| | - Chien-Hua Tseng
- Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Medical University-Shuang Ho Hospital, New Taipei City, Taiwan
| | - Kuan-Yuan Chen
- Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Medical University-Shuang Ho Hospital, New Taipei City, Taiwan
| | - Jiunn-Horng Kang
- Research Center of Artificial Intelligence in Medicine, Taipei Medical University, Taipei, Taiwan
- Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, Taiwan
| | - Hsin-Chien Lee
- Department of Psychiatry, Taipei Medical University Hospital, Taipei, Taiwan
| | - Cheng-Jung Wu
- Department of Otolaryngology, Taipei Medical University-Shuang Ho Hospital, New Taipei City, Taiwan
| | - Wen-Te Liu
- Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Medical University-Shuang Ho Hospital, New Taipei City, Taiwan
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
- Research Center of Artificial Intelligence in Medicine, Taipei Medical University, Taipei, Taiwan
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17
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Hsu WH, Yang CC, Tsai CY, Majumdar A, Lee KY, Feng PH, Tseng CH, Chen KY, Kang JH, Lee HC, Wu CJ, Kuan YC, Liu WT. Association of Low Arousal Threshold Obstructive Sleep Apnea Manifestations with Body Fat and Water Distribution. Life (Basel) 2023; 13:life13051218. [PMID: 37240863 DOI: 10.3390/life13051218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 04/20/2023] [Accepted: 05/12/2023] [Indexed: 05/28/2023] Open
Abstract
Obstructive sleep apnea (OSA) with a low arousal threshold (low-ArTH) phenotype can cause minor respiratory events that exacerbate sleep fragmentation. Although anthropometric features may affect the risk of low-ArTH OSA, the associations and underlying mechanisms require further investigation. This study investigated the relationships of body fat and water distribution with polysomnography parameters by using data from a sleep center database. The derived data were classified as those for low-ArTH in accordance with criteria that considered oximetry and the frequency and type fraction of respiratory events and analyzed using mean comparison and regression approaches. The low-ArTH group members (n = 1850) were significantly older and had a higher visceral fat level, body fat percentage, trunk-to-limb fat ratio, and extracellular-to-intracellular (E-I) water ratio compared with the non-OSA group members (n = 368). Significant associations of body fat percentage (odds ratio [OR]: 1.58, 95% confident interval [CI]: 1.08 to 2.3, p < 0.05), trunk-to-limb fat ratio (OR: 1.22, 95% CI: 1.04 to 1.43, p < 0.05), and E-I water ratio (OR: 1.32, 95% CI: 1.08 to 1.62, p < 0.01) with the risk of low-ArTH OSA were noted after adjustments for sex, age, and body mass index. These observations suggest that increased truncal adiposity and extracellular water are associated with a higher risk of low-ArTH OSA.
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Affiliation(s)
- Wen-Hua Hsu
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei 110301, Taiwan
| | - Cheng-Chang Yang
- Department of Neurology, Taipei Medical University-Shuang Ho Hospital, New Taipei City 235041, Taiwan
- Brain and Consciousness Research Center, Taipei Medical University-Shuang Ho Hospital, New Taipei City 235041, Taiwan
- International Ph.D. Program in Gerontology and Long-Term Care, College of Nursing, Taipei Medical University, Taipei 110301, Taiwan
| | - Cheng-Yu Tsai
- Department of Civil and Environmental Engineering, Imperial College London, London SW7 2AZ, UK
- Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Medical University-Shuang Ho Hospital, New Taipei City 235041, Taiwan
| | - Arnab Majumdar
- Department of Civil and Environmental Engineering, Imperial College London, London SW7 2AZ, UK
| | - Kang-Yun Lee
- Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Medical University-Shuang Ho Hospital, New Taipei City 235041, Taiwan
| | - Po-Hao Feng
- Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Medical University-Shuang Ho Hospital, New Taipei City 235041, Taiwan
| | - Chien-Hua Tseng
- Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Medical University-Shuang Ho Hospital, New Taipei City 235041, Taiwan
| | - Kuan-Yuan Chen
- Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Medical University-Shuang Ho Hospital, New Taipei City 235041, Taiwan
| | - Jiunn-Horng Kang
- Research Center of Artificial Intelligence in Medicine, Taipei Medical University, Taipei 110301, Taiwan
- Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 110301, Taiwan
| | - Hsin-Chien Lee
- Department of Psychiatry, Taipei Medical University Hospital, Taipei 110301, Taiwan
| | - Cheng-Jung Wu
- Department of Otolaryngology, Taipei Medical University-Shuang Ho Hospital, New Taipei City 235041, Taiwan
| | - Yi-Chun Kuan
- Department of Neurology, Taipei Medical University-Shuang Ho Hospital, New Taipei City 235041, Taiwan
- Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110301, Taiwan
- Taipei Neuroscience Institute, Taipei Medical University, Taipei 110301, Taiwan
- Dementia Center, Taipei Medical University-Shuang Ho Hospital, New Taipei City 235041, Taiwan
- Sleep Center, Taipei Medical University-Shuang Ho Hospital, New Taipei City 235041, Taiwan
| | - Wen-Te Liu
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei 110301, Taiwan
- Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Medical University-Shuang Ho Hospital, New Taipei City 235041, Taiwan
- Research Center of Artificial Intelligence in Medicine, Taipei Medical University, Taipei 110301, Taiwan
- Sleep Center, Taipei Medical University-Shuang Ho Hospital, New Taipei City 235041, Taiwan
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18
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De A, Das A, Joardar M, Mridha D, Majumdar A, Das J, Roychowdhury T. Investigating spatial distribution of fluoride in groundwater with respect to hydro-geochemical characteristics and associated probabilistic health risk in Baruipur block of West Bengal, India. Sci Total Environ 2023; 886:163877. [PMID: 37156382 DOI: 10.1016/j.scitotenv.2023.163877] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 04/12/2023] [Accepted: 04/27/2023] [Indexed: 05/10/2023]
Abstract
Fluoride (F-) enrichment in groundwater of the lower Gangetic plain in West Bengal, India is a major concern. Fluoride contamination and its toxicity were reported earlier in this region; however, limited evidence was available on the precise site of contamination, hydro-geochemical attributions of F- mobilization and probabilistic health risk caused by fluoridated groundwater. The present study addresses the research gap by exploring the spatial distribution and physico-chemical parameters of fluoridated groundwater along with the depth-wise sedimental distribution of F-. Approximately, 10 % of the groundwater samples (n = 824) exhibited high F- ≥ 1.5 mg/l from 5, out of 19 gram-panchayats and Baruipur municipality area and the maximum F- was observed in Dhapdhapi-II gram-panchayat with 43.7 % of samples showed ≥1.5 mg/l (n = 167). The distribution patterns of cations and anions in fluoridated groundwater were Na+ > Ca2+ > Mg2+ > Fe > K+ and Cl- > HCO3- > SO42- > CO32- > NO3- > F-. Different statistical models like Piper and Gibbs diagram, Chloro Alkaline plot, Saturation index were applied to better understand the hydro-geochemical characteristics for F- leaching in groundwater. Fluoridated groundwater is of Na-Cl type which implies strong saline character. The intermediate zone between evaporation and rock dominance area controls F- mobilization along with ion-exchange process occurring between groundwater and host silicate mineral. Furthermore, saturation index proves geogenic activities related to groundwater F- mobilization. All cations present in sediment samples are closely interlinked with F- in the depth range of 0-18.3 m. Mineralogical analyses revealed that muscovite is the most responsible mineral for F- mobilization. The probabilistic health risk assessment disclosed severe health hazard in the order of infants > adults > children > teenagers through F- tainted groundwater. At P95 percentile dose, all the studied age groups showed THQ >1 from Dhapdhapi-II gram-panchayat. Supply of F- safe drinking water is required through reliable water supply strategies in the studied area.
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Affiliation(s)
- Ayan De
- School of Environmental Studies, Jadavpur University, Kolkata 700032, India
| | - Antara Das
- School of Environmental Studies, Jadavpur University, Kolkata 700032, India
| | - Madhurima Joardar
- School of Environmental Studies, Jadavpur University, Kolkata 700032, India
| | - Deepanjan Mridha
- School of Environmental Studies, Jadavpur University, Kolkata 700032, India
| | - Arnab Majumdar
- School of Environmental Studies, Jadavpur University, Kolkata 700032, India
| | - Jagyashila Das
- National Institute of Biomedical Genomics, Kalyani, India
| | - Tarit Roychowdhury
- School of Environmental Studies, Jadavpur University, Kolkata 700032, India.
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19
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Tsai CY, Su CL, Wang YH, Wu SM, Liu WT, Hsu WH, Majumdar A, Stettler M, Chen KY, Lee YT, Hu CJ, Lee KY, Tsuang BJ, Tseng CH. Impact of lifetime air pollution exposure patterns on the risk of chronic disease. Environ Res 2023; 229:115957. [PMID: 37084949 DOI: 10.1016/j.envres.2023.115957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 04/17/2023] [Accepted: 04/18/2023] [Indexed: 05/03/2023]
Abstract
Long-term exposure to air pollution can lead to cardiovascular disease, metabolic syndrome, and chronic respiratory disease. However, from a lifetime perspective, the critical period of air pollution exposure in terms of health risk is unknown. This study aimed to evaluate the impact of air pollution exposure at different life stages. The study participants were recruited from community centers in Northern Taiwan between October 2018 and April 2021. Their annual averages for fine particulate matter (PM2.5) exposure were derived from a national visibility database. Lifetime PM2.5 exposures were determined using residential address information and were separated into three stages (<20, 20-40, and >40 years). We employed exponentially weighted moving averages, applying different weights to the aforementioned life stages to simulate various weighting distribution patterns. Regression models were implemented to examine associations between weighting distributions and disease risk. We applied a random forest model to compare the relative importance of the three exposure life stages. We also compared model performance by evaluating the accuracy and F1 scores (the harmonic mean of precision and recall) of late-stage (>40 years) and lifetime exposure models. Models with 89% weighting on late-stage exposure showed significant associations between PM2.5 exposure and metabolic syndrome, hypertension, diabetes, and cardiovascular disease, but not gout or osteoarthritis. Lifetime exposure models showed higher precision, accuracy, and F1 scores for metabolic syndrome, hypertension, diabetes, and cardiovascular disease, whereas late-stage models showed lower performance metrics for these outcomes. We conclude that exposure to high-level PM2.5 after 40 years of age may increase the risk of metabolic syndrome, hypertension, diabetes, and cardiovascular disease. However, models considering lifetime exposure showed higher precision, accuracy, and F1 scores and lower equal error rates than models incorporating only late-stage exposures. Future studies regarding long-term air pollution modelling are required considering lifelong exposure pattern. .1.
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Affiliation(s)
- Cheng-Yu Tsai
- Department of Civil and Environmental Engineering, Imperial College London, London, SW7 2AZ, United Kingdom; Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, 235041, Taiwan
| | - Chien-Ling Su
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, 235041, Taiwan; School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, 110301, Taiwan; Department of Physical Therapy, Shu-Zen Junior College of Medicine and Management, Kaohsiung City, 821004, Taiwan
| | - Yuan-Hung Wang
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, 110301, Taiwan; Department of Medical Research, Shuang Ho Hospital, Taipei Medical University, New Taipei City, 235041, Taiwan
| | - Sheng-Ming Wu
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, 110301, Taiwan; Division of Pulmonary Medicine, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, 110301, Taiwan
| | - Wen-Te Liu
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, 235041, Taiwan; School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, 110301, Taiwan; Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan; Research Center of Artificial Intelligence in Medicine, Taipei Medical University, Taipei, 110301, Taiwan
| | - Wen-Hua Hsu
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, 110301, Taiwan
| | - Arnab Majumdar
- Department of Civil and Environmental Engineering, Imperial College London, London, SW7 2AZ, United Kingdom
| | - Marc Stettler
- Department of Civil and Environmental Engineering, Imperial College London, London, SW7 2AZ, United Kingdom
| | - Kuan-Yuan Chen
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, 235041, Taiwan
| | - Ya-Ting Lee
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, 235041, Taiwan
| | - Chaur-Jong Hu
- Department of Neurology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, 235041, Taiwan; Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, 11031, Taiwan
| | - Kang-Yun Lee
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, 235041, Taiwan; Division of Pulmonary Medicine, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, 110301, Taiwan
| | - Ben-Jei Tsuang
- Department of Environmental Engineering, National Chung-Hsing University, Taichung, Taiwan
| | - Chien-Hua Tseng
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, 235041, Taiwan; Division of Pulmonary Medicine, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, 110301, Taiwan; Division of Critical Care Medicine, Department of Emergency and Critical Care Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.
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20
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Liu WT, Huang HT, Hung HY, Lin SY, Hsu WH, Lee FY, Kuan YC, Lin YT, Hsu CR, Stettler M, Yang CM, Wang J, Duh PJ, Lee KY, Wu D, Lee HC, Kang JH, Lee SS, Wong HJ, Tsai CY, Majumdar A. Continuous Positive Airway Pressure Reduces Plasma Neurochemical Levels in Patients with OSA: A Pilot Study. Life (Basel) 2023; 13:life13030613. [PMID: 36983769 PMCID: PMC10059911 DOI: 10.3390/life13030613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 02/15/2023] [Accepted: 02/20/2023] [Indexed: 02/25/2023] Open
Abstract
Obstructive sleep apnea (OSA) is a risk factor for neurodegenerative diseases. This study determined whether continuous positive airway pressure (CPAP), which can alleviate OSA symptoms, can reduce neurochemical biomarker levels. Thirty patients with OSA and normal cognitive function were recruited and divided into the control (n = 10) and CPAP (n = 20) groups. Next, we examined their in-lab sleep data (polysomnography and CPAP titration), sleep-related questionnaire outcomes, and neurochemical biomarker levels at baseline and the 3-month follow-up. The paired t-test and Wilcoxon signed-rank test were used to examine changes. Analysis of covariance (ANCOVA) was performed to increase the robustness of outcomes. The Epworth Sleepiness Scale and Pittsburgh Sleep Quality Index scores were significantly decreased in the CPAP group. The mean levels of total tau (T−Tau), amyloid-beta-42 (Aβ42), and the product of the two (Aβ42 × T−Tau) increased considerably in the control group (ΔT−Tau: 2.31 pg/mL; ΔAβ42: 0.58 pg/mL; ΔAβ42 × T−Tau: 48.73 pg2/mL2), whereas the mean levels of T−Tau and the product of T−Tau and Aβ42 decreased considerably in the CPAP group (ΔT−Tau: −2.22 pg/mL; ΔAβ42 × T−Tau: −44.35 pg2/mL2). The results of ANCOVA with adjustment for age, sex, body mass index, baseline measurements, and apnea–hypopnea index demonstrated significant differences in neurochemical biomarker levels between the CPAP and control groups. The findings indicate that CPAP may reduce neurochemical biomarker levels by alleviating OSA symptoms.
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Affiliation(s)
- Wen-Te Liu
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei 110301, Taiwan
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235041, Taiwan
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235041, Taiwan
- Research Center of Artificial Intelligence in Medicine, Taipei Medical University, Taipei 110301, Taiwan
| | - Huei-Tyng Huang
- Department of Medical Physics and Biomedical Engineering, University College London, London WC1E 6BT, UK
| | - Hsin-Yi Hung
- Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Shang-Yang Lin
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235041, Taiwan
| | - Wen-Hua Hsu
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei 110301, Taiwan
| | - Fang-Yu Lee
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235041, Taiwan
| | - Yi-Chun Kuan
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235041, Taiwan
- Department of Neurology, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235041, Taiwan
- Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110301, Taiwan
- Taipei Neuroscience Institute, Taipei Medical University, Taipei 110301, Taiwan
- Dementia Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235041, Taiwan
| | - Yin-Tzu Lin
- Department of Medical Imaging and Intervention, Chang Gung Memorial Hospital at Linkou, Taoyuan 333423, Taiwan
| | - Chia-Rung Hsu
- Department of Neurology, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235041, Taiwan
| | - Marc Stettler
- Department of Civil and Environmental Engineering, Imperial College London, London SW7 2AZ, UK
| | - Chien-Ming Yang
- Department of Psychology, National Chengchi University, Taipei 11605, Taiwan
| | - Jieni Wang
- Chemical Engineering and Biotechnology, University of Cambridge, Cambridge CB2 1TN, UK
| | - Ping-Jung Duh
- Cognitive Neuroscience, Division of Psychology and Language Science, University College London, London WC1E 6BT, UK
| | - Kang-Yun Lee
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235041, Taiwan
| | - Dean Wu
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235041, Taiwan
- Department of Neurology, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235041, Taiwan
- Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110301, Taiwan
- Taipei Neuroscience Institute, Taipei Medical University, Taipei 110301, Taiwan
- Dementia Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235041, Taiwan
| | - Hsin-Chien Lee
- Department of Psychiatry, Taipei Medical University Hospital, Taipei 110301, Taiwan
| | - Jiunn-Horng Kang
- Research Center of Artificial Intelligence in Medicine, Taipei Medical University, Taipei 110301, Taiwan
- Department of Physical Medicine and Rehabilitation, Taipei Medical University Hospital, New Taipei City 235041, Taiwan
- Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 110301, Taiwan
| | - Szu-Szu Lee
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235041, Taiwan
| | - Hsiu-Jui Wong
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235041, Taiwan
| | - Cheng-Yu Tsai
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235041, Taiwan
- Department of Civil and Environmental Engineering, Imperial College London, London SW7 2AZ, UK
- Correspondence: (C.-Y.T.); (A.M.)
| | - Arnab Majumdar
- Department of Civil and Environmental Engineering, Imperial College London, London SW7 2AZ, UK
- Correspondence: (C.-Y.T.); (A.M.)
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21
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Chen KY, Kuo HY, Lee KY, Feng PH, Wu SM, Chuang HC, Chen TT, Sun WL, Tseng CH, Liu WT, Cheng WH, Majumdar A, Stettler M, Tsai CY, Ho SC. Associations of the distance-saturation product and low-attenuation area percentage in pulmonary computed tomography with acute exacerbation in patients with chronic obstructive pulmonary disease. Front Med (Lausanne) 2023; 9:1047420. [PMID: 36687440 PMCID: PMC9846059 DOI: 10.3389/fmed.2022.1047420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Accepted: 12/14/2022] [Indexed: 01/05/2023] Open
Abstract
Background Chronic obstructive pulmonary disease (COPD) has high global health concerns, and previous research proposed various indicators to predict mortality, such as the distance-saturation product (DSP), derived from the 6-min walk test (6MWT), and the low-attenuation area percentage (LAA%) in pulmonary computed tomographic images. However, the feasibility of using these indicators to evaluate the stability of COPD still remains to be investigated. Associations of the DSP and LAA% with other COPD-related clinical parameters are also unknown. This study, thus, aimed to explore these associations. Methods This retrospective study enrolled 111 patients with COPD from northern Taiwan. Individuals' data we collected included results of a pulmonary function test (PFT), 6MWT, life quality survey [i.e., the modified Medical Research Council (mMRC) scale and COPD assessment test (CAT)], history of acute exacerbation of COPD (AECOPD), and LAA%. Next, the DSP was derived by the distance walked and the lowest oxygen saturation recorded during the 6MWT. In addition, the DSP and clinical phenotype grouping based on clinically significant outcomes by previous study approaches were employed for further investigation (i.e., DSP of 290 m%, LAA% of 20%, and AECOPD frequency of ≥1). Mean comparisons and linear and logistic regression models were utilized to explore associations among the assessed variables. Results The low-DSP group (<290 m%) had significantly higher values for the mMRC, CAT, AECOPD frequency, and LAA% at different lung volume scales (total, right, and left), whereas it had lower values of the PFT and 6MWT parameters compared to the high-DSP group. Significant associations (with high odds ratios) were observed of the mMRC, CAT, AECOPD frequency, and PFT with low- and high-DSP groupings. Next, the risk of having AECOPD was associated with the mMRC, CAT, DSP, and LAA% (for the total, right, and left lungs). Conclusion A lower value of the DSP was related to a greater worsening of symptoms, more-frequent exacerbations, poorer pulmonary function, and more-severe emphysema (higher LAA%). These readily determined parameters, including the DSP and LAA%, can serve as indicators for assessing the COPD clinical course and may can serve as a guide to corresponding treatments.
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Affiliation(s)
- Kuan-Yuan Chen
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan,Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, New Taipei City, Taiwan
| | - Hsiao-Yun Kuo
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, New Taipei City, Taiwan
| | - Kang-Yun Lee
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan,Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, New Taipei City, Taiwan,Division of Pulmonary Medicine, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, New Taipei City, Taiwan
| | - Po-Hao Feng
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan,Division of Pulmonary Medicine, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, New Taipei City, Taiwan
| | - Sheng-Ming Wu
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan,Division of Pulmonary Medicine, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, New Taipei City, Taiwan
| | - Hsiao-Chi Chuang
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan,School of Respiratory Therapy, College of Medicine, Taipei Medical University, New Taipei City, Taiwan,Division of Pulmonary Medicine, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, New Taipei City, Taiwan
| | - Tzu-Tao Chen
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan,Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, New Taipei City, Taiwan,Division of Pulmonary Medicine, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, New Taipei City, Taiwan
| | - Wei-Lun Sun
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Chien-Hua Tseng
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan,Division of Pulmonary Medicine, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, New Taipei City, Taiwan,Division of Critical Care Medicine, Department of Emergency and Critical Care Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Wen-Te Liu
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan,Department of Medical Research, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan,Research Center of Artificial Intelligence in Medicine, Taipei Medical University, New Taipei City, Taiwan
| | - Wun-Hao Cheng
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, New Taipei City, Taiwan
| | - Arnab Majumdar
- Department of Civil and Environmental Engineering, Imperial College London, London, United Kingdom
| | - Marc Stettler
- Department of Civil and Environmental Engineering, Imperial College London, London, United Kingdom
| | - Cheng-Yu Tsai
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan,Department of Civil and Environmental Engineering, Imperial College London, London, United Kingdom,Cheng-Yu Tsai,
| | - Shu-Chuan Ho
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan,School of Respiratory Therapy, College of Medicine, Taipei Medical University, New Taipei City, Taiwan,*Correspondence: Shu-Chuan Ho,
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22
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Tsai CY, Liu WT, Hsu WH, Majumdar A, Stettler M, Lee KY, Cheng WH, Wu D, Lee HC, Kuan YC, Wu CJ, Lin YC, Ho SC. Screening the risk of obstructive sleep apnea by utilizing supervised learning techniques based on anthropometric features and snoring events. Digit Health 2023; 9:20552076231152751. [PMID: 36896329 PMCID: PMC9989412 DOI: 10.1177/20552076231152751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Accepted: 01/04/2023] [Indexed: 03/08/2023] Open
Abstract
Objectives Obstructive sleep apnea (OSA) is typically diagnosed by polysomnography (PSG). However, PSG is time-consuming and has some clinical limitations. This study thus aimed to establish machine learning models to screen for the risk of having moderate-to-severe and severe OSA based on easily acquired features. Methods We collected PSG data on 3529 patients from Taiwan and further derived the number of snoring events. Their baseline characteristics and anthropometric measures were obtained, and correlations among the collected variables were investigated. Next, six common supervised machine learning techniques were utilized, including random forest (RF), extreme gradient boosting (XGBoost), k-nearest neighbor (kNN), support vector machine (SVM), logistic regression (LR), and naïve Bayes (NB). First, data were independently separated into a training and validation dataset (80%) and a test dataset (20%). The approach with the highest accuracy in the training and validation phase was employed to classify the test dataset. Next, feature importance was investigated by calculating the Shapley value of every factor, which represented the impact on OSA risk screening. Results The RF produced the highest accuracy (of >70%) in the training and validation phase in screening for both OSA severities. Hence, we employed the RF to classify the test dataset, and results showed a 79.32% accuracy for moderate-to-severe OSA and 74.37% accuracy for severe OSA. Snoring events and the visceral fat level were the most and second most essential features of screening for OSA risk. Conclusions The established model can be considered for screening for the risk of having moderate-to-severe or severe OSA.
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Affiliation(s)
- Cheng-Yu Tsai
- Department of Civil and Environmental Engineering, Imperial College London, London, UK
| | - Wen-Te Liu
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Research Center of Artificial Intelligence in Medicine, Taipei Medical University, Taipei, Taiwan
| | - Wen-Hua Hsu
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Arnab Majumdar
- Department of Civil and Environmental Engineering, Imperial College London, London, UK
| | - Marc Stettler
- Department of Civil and Environmental Engineering, Imperial College London, London, UK
| | - Kang-Yun Lee
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Division of Pulmonary Medicine, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Wun-Hao Cheng
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Dean Wu
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Department of Neurology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Taipei Neuroscience Institute, Taipei Medical University, Taipei, Taiwan.,Dementia Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Hsin-Chien Lee
- Department of Psychiatry, Taipei Medical University Hospital, Taipei, Taiwan
| | - Yi-Chun Kuan
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Department of Neurology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Taipei Neuroscience Institute, Taipei Medical University, Taipei, Taiwan.,Dementia Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Cheng-Jung Wu
- Department of Otolaryngology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Yi-Chih Lin
- Department of Otolaryngology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Shu-Chuan Ho
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
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23
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Kuo CF, Tsai CY, Cheng WH, Hs WH, Majumdar A, Stettler M, Lee KY, Kuan YC, Feng PH, Tseng CH, Chen KY, Kang JH, Lee HC, Wu CJ, Liu WT. Machine learning approaches for predicting sleep arousal response based on heart rate variability, oxygen saturation, and body profiles. Digit Health 2023; 9:20552076231205744. [PMID: 37846406 PMCID: PMC10576931 DOI: 10.1177/20552076231205744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/18/2023] [Indexed: 10/18/2023] Open
Abstract
Objective Obstructive sleep apnea is a global health concern, and several tools have been developed to screen its severity. However, most tools focus on respiratory events instead of sleep arousal, which can also affect sleep efficiency. This study employed easy-to-measure parameters-namely heart rate variability, oxygen saturation, and body profiles-to predict arousal occurrence. Methods Body profiles and polysomnography recordings were collected from 659 patients. Continuous heart rate variability and oximetry measurements were performed and then labeled based on the presence of sleep arousal. The dataset, comprising five body profiles, mean heart rate, six heart rate variability, and five oximetry variables, was then split into 80% training/validation and 20% testing datasets. Eight machine learning approaches were employed. The model with the highest accuracy, area under the receiver operating characteristic curve, and area under the precision recall curve values in the training/validation dataset was applied to the testing dataset and to determine feature importance. Results InceptionTime, which exhibited superior performance in predicting sleep arousal in the training dataset, was used to classify the testing dataset and explore feature importance. In the testing dataset, InceptionTime achieved an accuracy of 76.21%, an area under the receiver operating characteristic curve of 84.33%, and an area under the precision recall curve of 86.28%. The standard deviations of time intervals between successive normal heartbeats and the square roots of the means of the squares of successive differences between normal heartbeats were predominant predictors of arousal occurrence. Conclusions The established models can be considered for screening sleep arousal occurrence or integrated in wearable devices for home-based sleep examination.
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Affiliation(s)
- Chih-Fan Kuo
- School of Medicine, China Medical University, Taichung City, Taichung, Taiwan
- Artificial Intelligence Center, China Medical University Hospital, Taichung, Taiwan
- Department of Medical Education, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Cheng-Yu Tsai
- Department of Civil and Environmental Engineering, Imperial College London, London, UK
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Wun-Hao Cheng
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Respiratory Therapy, Division of Pulmonary Medicine, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Wen-Hua Hs
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Arnab Majumdar
- Department of Civil and Environmental Engineering, Imperial College London, London, UK
| | - Marc Stettler
- Department of Civil and Environmental Engineering, Imperial College London, London, UK
| | - Kang-Yun Lee
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
- Division of Pulmonary Medicine, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei City, Taiwan
| | - Yi-Chun Kuan
- Sleep Center, Taipei Medical University-Shuang Ho Hospital, New Taipei City, Taiwan
- Department of Neurology, Taipei Medical University-Shuang Ho Hospital, New Taipei City, Taiwan
- Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Taipei Neuroscience Institute, Taipei Medical University, Taipei, Taiwan
| | - Po-Hao Feng
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
- Division of Pulmonary Medicine, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei City, Taiwan
| | - Chien-Hua Tseng
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
- Division of Pulmonary Medicine, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei City, Taiwan
| | - Kuan-Yuan Chen
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Jiunn-Horng Kang
- Research Center of Artificial Intelligence in Medicine, Taipei Medical University, Taipei, Taiwan
- Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, Taiwan
| | - Hsin-Chien Lee
- Department of Psychiatry, Taipei Medical University Hospital, Taipei, Taiwan
| | - Cheng-Jung Wu
- Department of Otolaryngology, Taipei Medical University-Shuang Ho Hospital, New Taipei City, Taiwan
| | - Wen-Te Liu
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Sleep Center, Taipei Medical University-Shuang Ho Hospital, New Taipei City, Taiwan
- Research Center of Artificial Intelligence in Medicine, Taipei Medical University, Taipei, Taiwan
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24
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Majumdar A, Upadhyay MK, Giri B, Karwadiya J, Bose S, Jaiswal MK. Iron oxide doped rice biochar reduces soil-plant arsenic stress, improves nutrient values: An amendment towards sustainable development goals. Chemosphere 2023; 312:137117. [PMID: 36334731 DOI: 10.1016/j.chemosphere.2022.137117] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 10/21/2022] [Accepted: 10/31/2022] [Indexed: 06/16/2023]
Abstract
Arsenic (As) contamination in paddy soils and its further translocation to the rice is a serious global issue. Arsenic loading to the rice depends on soil physico-chemical parameters and agronomic practices. To minimize this natural threat, as a natural substance, rice straw was used to produce rice biochar (RBC) and doped with iron oxide (IO) nanoparticles, another eco-friendly composite. In this study, RBC was used at three different concentrations- 0.5%, 1%, and 1.5% alone as well as conjugated with fixed 20 ppm IO nanoparticles. These treatments were compared with the control soil and control plants that had only As in the setup, without any amendments. The application of these treatments was efficient in reducing soil As bioavailability by 43.9%, 60.5%, and 57.3% respectively. Experimental data proved a significant percentage of As was adsorbed onto the RBC + IO conjugate. Further, the 1% RBC + IO conjugate was found to be the best treatment in terms of making soil macro-nutrients bioavailable. Rice seedlings grown under this treatment was more stress tolerant and produced less antioxidant enzymes and stress markers compared to the control plants grown under As-stress only. Rice plants from these different growth setups were observed for internal anatomical integrity and found that the RBC alone and RBC + IO conjugate, both improved the internal vascular structure compared to the control plants. To minimize soil As stress in crops, IO-doped RBC was proven to be the best sustainable amendment for improving soil-crop quality and achieving the proposed motto of Sustainable Development Goals by the United Nations.
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Affiliation(s)
- Arnab Majumdar
- Department of Earth Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, 741246, India.
| | - Munish Kumar Upadhyay
- Centre for Environmental Science & Engineering, Department of Civil Engineering, Indian Institute of Technology Kanpur, 208016, India
| | - Biswajit Giri
- Department of Earth Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, 741246, India
| | - Jayant Karwadiya
- Department of Earth Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, 741246, India
| | - Sutapa Bose
- Department of Earth Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, 741246, India
| | - Manoj Kumar Jaiswal
- Department of Earth Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, 741246, India
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25
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Wade M, Brown N, Steele J, Mann S, Dancy B, Winter S, Majumdar A. The impact of signposting and group support pathways on a community-based physical activity intervention grounded in motivational interviewing. J Public Health (Oxf) 2022; 44:851-862. [PMID: 34121114 DOI: 10.1093/pubmed/fdab198] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 05/07/2021] [Accepted: 05/26/2021] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Brief advice is recommended to increase physical activity (PA) within primary care. This study assessed change in PA levels and mental well-being after a motivational interviewing (MI) community-based PA intervention and the impact of signposting (SP) and social action (SA) (i.e. weekly group support) pathways. METHODS Participants (n = 2084) took part in a community-based, primary care PA programme using MI techniques. Self-reported PA and mental well-being data were collected at baseline (following an initial 30-min MI appointment), 12 weeks, 6 months and 12 months. Participants were assigned based upon the surgery they attended to the SP or SA pathway. Multilevel models derived point estimates and 95% confidence intervals for outcomes at each time point and change scores. RESULTS Participants increased PA and mental well-being at each follow-up time point through both participant pathways and with little difference between pathways. Retention was similar between pathways at 12 weeks, but the SP pathway retained more participants at 6 and 12 months. CONCLUSIONS Both pathways produced similar improvements in PA and mental well-being; however, the addition of a control would have provided further insight as to the effectiveness. Due to lower resources yet similar effects, the SP pathway could be incorporated to support PA in primary care settings.
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Affiliation(s)
- M Wade
- Faculty of Sport, Allied Health and Performance Sciences, St Mary's University, Twickenham, TW1 4SX, UK.,ukactive Research Institute, ukactive, London, WC1A 2SL UK
| | - N Brown
- Faculty of Sport, Allied Health and Performance Sciences, St Mary's University, Twickenham, TW1 4SX, UK
| | - J Steele
- ukactive Research Institute, ukactive, London, WC1A 2SL UK.,School of Sport, Health, and Social Sciences, Solent University, Southampton SO14 0YN, UK
| | - S Mann
- 4Global, Chiswick, W4 5YG, UK
| | - B Dancy
- Faculty of Sport, Allied Health and Performance Sciences, St Mary's University, Twickenham, TW1 4SX, UK
| | - S Winter
- Faculty of Sport, Allied Health and Performance Sciences, St Mary's University, Twickenham, TW1 4SX, UK
| | - A Majumdar
- Faculty of Sport, Allied Health and Performance Sciences, St Mary's University, Twickenham, TW1 4SX, UK
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26
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Wade M, Brown N, Steele J, Mann S, Dancy B, Winter S, Majumdar A. The impact of signposting and group support pathways on a community-based physical activity intervention grounded in motivational interviewing. J Public Health (Oxf) 2022. [PMID: 34121114 DOI: 10.31236/osf.io/gq78r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2023] Open
Abstract
BACKGROUND Brief advice is recommended to increase physical activity (PA) within primary care. This study assessed change in PA levels and mental well-being after a motivational interviewing (MI) community-based PA intervention and the impact of signposting (SP) and social action (SA) (i.e. weekly group support) pathways. METHODS Participants (n = 2084) took part in a community-based, primary care PA programme using MI techniques. Self-reported PA and mental well-being data were collected at baseline (following an initial 30-min MI appointment), 12 weeks, 6 months and 12 months. Participants were assigned based upon the surgery they attended to the SP or SA pathway. Multilevel models derived point estimates and 95% confidence intervals for outcomes at each time point and change scores. RESULTS Participants increased PA and mental well-being at each follow-up time point through both participant pathways and with little difference between pathways. Retention was similar between pathways at 12 weeks, but the SP pathway retained more participants at 6 and 12 months. CONCLUSIONS Both pathways produced similar improvements in PA and mental well-being; however, the addition of a control would have provided further insight as to the effectiveness. Due to lower resources yet similar effects, the SP pathway could be incorporated to support PA in primary care settings.
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Affiliation(s)
- M Wade
- Faculty of Sport, Allied Health and Performance Sciences, St Mary's University, Twickenham, TW1 4SX, UK
- ukactive Research Institute, ukactive, London, WC1A 2SL UK
| | - N Brown
- Faculty of Sport, Allied Health and Performance Sciences, St Mary's University, Twickenham, TW1 4SX, UK
| | - J Steele
- ukactive Research Institute, ukactive, London, WC1A 2SL UK
- School of Sport, Health, and Social Sciences, Solent University, Southampton SO14 0YN, UK
| | - S Mann
- 4Global, Chiswick, W4 5YG, UK
| | - B Dancy
- Faculty of Sport, Allied Health and Performance Sciences, St Mary's University, Twickenham, TW1 4SX, UK
| | - S Winter
- Faculty of Sport, Allied Health and Performance Sciences, St Mary's University, Twickenham, TW1 4SX, UK
| | - A Majumdar
- Faculty of Sport, Allied Health and Performance Sciences, St Mary's University, Twickenham, TW1 4SX, UK
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27
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Tsai CY, Wu SM, Kuan YC, Lin YT, Hsu CR, Hsu WH, Liu YS, Majumdar A, Stettler M, Yang CM, Lee KY, Wu D, Lee HC, Wu CJ, Kang JH, Liu WT. Associations between risk of Alzheimer's disease and obstructive sleep apnea, intermittent hypoxia, and arousal responses: A pilot study. Front Neurol 2022; 13:1038735. [PMID: 36530623 PMCID: PMC9747943 DOI: 10.3389/fneur.2022.1038735] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 11/04/2022] [Indexed: 01/30/2024] Open
Abstract
OBJECTIVES Obstructive sleep apnea (OSA) may increase the risk of Alzheimer's disease (AD). However, potential associations among sleep-disordered breathing, hypoxia, and OSA-induced arousal responses should be investigated. This study determined differences in sleep parameters and investigated the relationship between such parameters and the risk of AD. METHODS Patients with suspected OSA were recruited and underwent in-lab polysomnography (PSG). Subsequently, blood samples were collected from participants. Patients' plasma levels of total tau (T-Tau) and amyloid beta-peptide 42 (Aβ42) were measured using an ultrasensitive immunomagnetic reduction assay. Next, the participants were categorized into low- and high-risk groups on the basis of the computed product (Aβ42 × T-Tau, the cutoff for AD risk). PSG parameters were analyzed and compared. RESULTS We included 36 patients in this study, of whom 18 and 18 were assigned to the low- and high-risk groups, respectively. The average apnea-hypopnea index (AHI), apnea, hypopnea index [during rapid eye movement (REM) and non-REM (NREM) sleep], and oxygen desaturation index (≥3%, ODI-3%) values of the high-risk group were significantly higher than those of the low-risk group. Similarly, the mean arousal index and respiratory arousal index (R-ArI) of the high-risk group were significantly higher than those of the low-risk group. Sleep-disordered breathing indices, oxygen desaturation, and arousal responses were significantly associated with an increased risk of AD. Positive associations were observed among the AHI, ODI-3%, R-ArI, and computed product. CONCLUSIONS Recurrent sleep-disordered breathing, intermittent hypoxia, and arousal responses, including those occurring during the NREM stage, were associated with AD risk. However, a longitudinal study should be conducted to investigate the causal relationships among these factors.
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Affiliation(s)
- Cheng-Yu Tsai
- Department of Civil and Environmental Engineering, Imperial College London, London, United Kingdom
| | - Sheng-Ming Wu
- Division of Pulmonary Medicine, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Yi-Chun Kuan
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
- Department of Neurology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
- Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Taipei Neuroscience Institute, Taipei Medical University, Taipei, Taiwan
- Dementia Center, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
| | - Yin-Tzu Lin
- Department of Medical Imaging and Intervention, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
| | - Chia-Rung Hsu
- Department of Neurology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Wen-Hua Hsu
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Yi-Shin Liu
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Arnab Majumdar
- Department of Civil and Environmental Engineering, Imperial College London, London, United Kingdom
| | - Marc Stettler
- Department of Civil and Environmental Engineering, Imperial College London, London, United Kingdom
| | - Chien-Ming Yang
- Department of Psychology, National Chengchi University, Taipei, Taiwan
| | - Kang-Yun Lee
- Division of Pulmonary Medicine, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Dean Wu
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
- Department of Neurology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
- Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Taipei Neuroscience Institute, Taipei Medical University, Taipei, Taiwan
- Dementia Center, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
| | - Hsin-Chien Lee
- Department of Psychiatry, Taipei Medical University Hospital, Taipei, Taiwan
| | - Cheng-Jung Wu
- Department of Otolaryngology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Jiunn-Horng Kang
- Research Center of Artificial Intelligence in Medicine, Taipei Medical University, Taipei, Taiwan
- Department of Physical Medicine and Rehabilitation, Taipei Medical University Hospital, Taipei, Taiwan
- Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, Taiwan
| | - Wen-Te Liu
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Research Center of Artificial Intelligence in Medicine, Taipei Medical University, Taipei, Taiwan
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28
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Mohan R, Kadry S, Rajinikanth V, Majumdar A, Thinnukool O. Automatic Detection of Tuberculosis Using VGG19 with Seagull-Algorithm. Life (Basel) 2022; 12:life12111848. [PMID: 36430983 PMCID: PMC9692667 DOI: 10.3390/life12111848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 10/28/2022] [Accepted: 11/09/2022] [Indexed: 11/16/2022]
Abstract
Due to various reasons, the incidence rate of communicable diseases in humans is steadily rising, and timely detection and handling will reduce the disease distribution speed. Tuberculosis (TB) is a severe communicable illness caused by the bacterium Mycobacterium-Tuberculosis (M. tuberculosis), which predominantly affects the lungs and causes severe respiratory problems. Due to its significance, several clinical level detections of TB are suggested, including lung diagnosis with chest X-ray images. The proposed work aims to develop an automatic TB detection system to assist the pulmonologist in confirming the severity of the disease, decision-making, and treatment execution. The proposed system employs a pre-trained VGG19 with the following phases: (i) image pre-processing, (ii) mining of deep features, (iii) enhancing the X-ray images with chosen procedures and mining of the handcrafted features, (iv) feature optimization using Seagull-Algorithm and serial concatenation, and (v) binary classification and validation. The classification is executed with 10-fold cross-validation in this work, and the proposed work is investigated using MATLAB® software. The proposed research work was executed using the concatenated deep and handcrafted features, which provided a classification accuracy of 98.6190% with the SVM-Medium Gaussian (SVM-MG) classifier.
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Affiliation(s)
- Ramya Mohan
- Department of Computer Science and Engineering, Division of Research and Innovation, Saveetha School of Engineering, SIMATS, Chennai 602105, India
| | - Seifedine Kadry
- Department of Applied Data Science, Noroff University College, 4612 Kristiansand, Norway
- Artificial Intelligence Research Center (AIRC), College of Engineering and Information Technology, Ajman University, Ajman 346, United Arab Emirates
- Department of Electrical and Computer Engineering, Lebanese American University, Byblos 1401, Lebanon
| | - Venkatesan Rajinikanth
- Department of Computer Science and Engineering, Division of Research and Innovation, Saveetha School of Engineering, SIMATS, Chennai 602105, India
| | - Arnab Majumdar
- Faculty of Engineering, Imperial College London, London SW7 2AZ, UK
| | - Orawit Thinnukool
- Faculty of Engineering, Imperial College London, London SW7 2AZ, UK
- College of Arts, Media, and Technology, Chiang Mai University, Chiang Mai 50200, Thailand
- Correspondence:
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Tsai CY, Huang HT, Cheng HC, Wang J, Duh PJ, Hsu WH, Stettler M, Kuan YC, Lin YT, Hsu CR, Lee KY, Kang JH, Wu D, Lee HC, Wu CJ, Majumdar A, Liu WT. Screening for Obstructive Sleep Apnea Risk by Using Machine Learning Approaches and Anthropometric Features. Sensors (Basel) 2022; 22:s22228630. [PMID: 36433227 PMCID: PMC9694257 DOI: 10.3390/s22228630] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 10/26/2022] [Accepted: 11/05/2022] [Indexed: 05/14/2023]
Abstract
Obstructive sleep apnea (OSA) is a global health concern and is typically diagnosed using in-laboratory polysomnography (PSG). However, PSG is highly time-consuming and labor-intensive. We, therefore, developed machine learning models based on easily accessed anthropometric features to screen for the risk of moderate to severe and severe OSA. We enrolled 3503 patients from Taiwan and determined their PSG parameters and anthropometric features. Subsequently, we compared the mean values among patients with different OSA severity and considered correlations among all participants. We developed models based on the following machine learning approaches: logistic regression, k-nearest neighbors, naïve Bayes, random forest (RF), support vector machine, and XGBoost. Collected data were first independently split into two data sets (training and validation: 80%; testing: 20%). Thereafter, we adopted the model with the highest accuracy in the training and validation stage to predict the testing set. We explored the importance of each feature in the OSA risk screening by calculating the Shapley values of each input variable. The RF model achieved the highest accuracy for moderate to severe (84.74%) and severe (72.61%) OSA. The level of visceral fat was found to be a predominant feature in the risk screening models of OSA with the aforementioned levels of severity. Our machine learning models can be employed to screen for OSA risk in the populations in Taiwan and in those with similar craniofacial structures.
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Affiliation(s)
- Cheng-Yu Tsai
- Centre for Transport Studies, Department of Civil and Environmental Engineering, Imperial College London, London SW7 2AZ, UK
| | - Huei-Tyng Huang
- Department of Medical Physics and Biomedical Engineering, University College London, London WC1E 6BT, UK
| | - Hsueh-Chien Cheng
- Parasites and Microbes Programme, Wellcome Sanger Institute, Hinxton CB10 1RQ, UK
| | - Jieni Wang
- Chemical Engineering and Biotechnology, University of Cambridge, Cambridge CB3 0AS, UK
| | - Ping-Jung Duh
- Cognitive Neuroscience, Division of Psychology and Language Science, University College London, London WC1H 0AP, UK
| | - Wen-Hua Hsu
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei 110301, Taiwan
| | - Marc Stettler
- Centre for Transport Studies, Department of Civil and Environmental Engineering, Imperial College London, London SW7 2AZ, UK
| | - Yi-Chun Kuan
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235041, Taiwan
- Department of Neurology, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235041, Taiwan
- Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110301, Taiwan
- Taipei Neuroscience Institute, Taipei Medical University, Taipei 110301, Taiwan
- Dementia Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235041, Taiwan
| | - Yin-Tzu Lin
- Department of Medical Imaging and Intervention, Chang Gung Memorial Hospital at Linkou, Taoyuan 33305, Taiwan
| | - Chia-Rung Hsu
- Department of Neurology, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235041, Taiwan
| | - Kang-Yun Lee
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235041, Taiwan
| | - Jiunn-Horng Kang
- Department of Physical Medicine and Rehabilitation, Taipei Medical University Hospital, Taipei 110301, Taiwan
- Research Center of Artificial Intelligence in Medicine, Taipei Medical University, Taipei 110301, Taiwan
- Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 110301, Taiwan
| | - Dean Wu
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235041, Taiwan
- Department of Neurology, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235041, Taiwan
- Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110301, Taiwan
- Taipei Neuroscience Institute, Taipei Medical University, Taipei 110301, Taiwan
- Dementia Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235041, Taiwan
| | - Hsin-Chien Lee
- Department of Psychiatry, Taipei Medical University Hospital, Taipei 110301, Taiwan
| | - Cheng-Jung Wu
- Department of Otolaryngology, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235041, Taiwan
| | - Arnab Majumdar
- Centre for Transport Studies, Department of Civil and Environmental Engineering, Imperial College London, London SW7 2AZ, UK
- Correspondence: (A.M.); (W.-T.L.)
| | - Wen-Te Liu
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei 110301, Taiwan
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235041, Taiwan
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235041, Taiwan
- Research Center of Artificial Intelligence in Medicine, Taipei Medical University, Taipei 110301, Taiwan
- Correspondence: (A.M.); (W.-T.L.)
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Magnusdottir EH, Johannsdottir KR, Majumdar A, Gudnason J. Assessing Cognitive Workload Using Cardiovascular Measures and Voice. Sensors (Basel) 2022; 22:6894. [PMID: 36146251 PMCID: PMC9502693 DOI: 10.3390/s22186894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 09/01/2022] [Accepted: 09/05/2022] [Indexed: 06/16/2023]
Abstract
Monitoring cognitive workload has the potential to improve both the performance and fidelity of human decision making. However, previous efforts towards discriminating further than binary levels (e.g., low/high or neutral/high) in cognitive workload classification have not been successful. This lack of sensitivity in cognitive workload measurements might be due to individual differences as well as inadequate methodology used to analyse the measured signal. In this paper, a method that combines the speech signal with cardiovascular measurements for screen and heartbeat classification is introduced. For validation, speech and cardiovascular signals from 97 university participants and 20 airline pilot participants were collected while cognitive stimuli of varying difficulty level were induced with the Stroop colour/word test. For the trinary classification scheme (low, medium, high cognitive workload) the prominent result using classifiers trained on each participant achieved 15.17 ± 0.79% and 17.38 ± 1.85% average misclassification rates indicating good discrimination at three levels of cognitive workload. Combining cardiovascular and speech measures synchronized to each heartbeat and consolidated with short-term dynamic measures might therefore provide enhanced sensitivity in cognitive workload monitoring. The results show that the influence of individual differences is a limiting factor for a generic classification and highlights the need for research to focus on methods that incorporate individual differences to achieve even better results. This method can potentially be used to measure and monitor workload in real time in operational environments.
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Affiliation(s)
- Eydis H. Magnusdottir
- Center for Analysis and Design of Intelligent Agents, Reykjavik University, 101 Reykjavik, Iceland
| | - Kamilla R. Johannsdottir
- Center for Analysis and Design of Intelligent Agents, Reykjavik University, 101 Reykjavik, Iceland
| | - Arnab Majumdar
- The Lloyd’s Register Foundation Transport Risk Management Centre, Imperial College, London SW7 2AZ, UK
| | - Jon Gudnason
- Center for Analysis and Design of Intelligent Agents, Reykjavik University, 101 Reykjavik, Iceland
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Tyagi N, Upadhyay MK, Majumdar A, Pathak SK, Giri B, Jaiswal MK, Srivastava S. An assessment of various potentially toxic elements and associated health risks in agricultural soil along the middle Gangetic basin, India. Chemosphere 2022; 300:134433. [PMID: 35390408 DOI: 10.1016/j.chemosphere.2022.134433] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 02/21/2022] [Accepted: 03/23/2022] [Indexed: 06/14/2023]
Abstract
The present study analysed the levels of potentially toxic elements along with physico-chemical properties of agricultural soil samples (n = 59) collected from fields situated along the path of river Ganga in the middle Gangetic floodplain in two districts, Ballia and Ghazipur. Arsenic (As), chromium (Cr), copper (Cu), nickel (Ni), zinc (Zn), lead (Pb), iron (Fe) and manganese (Mn) levels were analysed by Wavelength Dispersive-X-Ray Fluorescence Spectroscopy (WD-XRF) and the associated health risks along with diverse indices were calculated. The mean concentrations of As, Cu, Cr, Pb, Zn and Ni were found to be 15, 42, 85, 18, 87 and 47 mg kg-1, respectively in Ballia and 13, 31, 73, 22, 77 and 34 mg kg-1, respectively in Ghazipur. Physico-chemical properties like pH, ORP and organic matter were found to be 7.91, 209 and 1.20, respectively in Ballia and 8.51, 155 and 1.25, respectively in Ghazipur. The calculated health quotient (HQ) for all the elements was observed to be within the threshold value of one, however with few exemptions. Therefore, the present study showcases the contamination of potentially toxic elements in agricultural fields and possible health hazards for people.
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Affiliation(s)
- Nidhi Tyagi
- Plant Stress Biology Laboratory, Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, 221005, Uttar Pradesh, India
| | - Munish Kumar Upadhyay
- Plant Stress Biology Laboratory, Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, 221005, Uttar Pradesh, India
| | - Arnab Majumdar
- Department of Earth Sciences, Indian Institute of Science Education and Research-Kolkata, Mohanpur, 761234, West Bengal, India
| | - Saurabh Kumar Pathak
- Plant Stress Biology Laboratory, Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, 221005, Uttar Pradesh, India
| | - Biswajit Giri
- Department of Earth Sciences, Indian Institute of Science Education and Research-Kolkata, Mohanpur, 761234, West Bengal, India
| | - Manoj Kumar Jaiswal
- Department of Earth Sciences, Indian Institute of Science Education and Research-Kolkata, Mohanpur, 761234, West Bengal, India
| | - Sudhakar Srivastava
- Plant Stress Biology Laboratory, Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, 221005, Uttar Pradesh, India.
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Lakhan A, Morten Groenli T, Majumdar A, Khuwuthyakorn P, Hussain Khoso F, Thinnukool O. Potent Blockchain-Enabled Socket RPC Internet of Healthcare Things (IoHT) Framework for Medical Enterprises. Sensors (Basel) 2022; 22:s22124346. [PMID: 35746127 PMCID: PMC9227973 DOI: 10.3390/s22124346] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 05/31/2022] [Accepted: 06/06/2022] [Indexed: 06/12/2023]
Abstract
Present-day intelligent healthcare applications offer digital healthcare services to users in a distributed manner. The Internet of Healthcare Things (IoHT) is the mechanism of the Internet of Things (IoT) found in different healthcare applications, with devices that are attached to external fog cloud networks. Using different mobile applications connecting to cloud computing, the applications of the IoHT are remote healthcare monitoring systems, high blood pressure monitoring, online medical counseling, and others. These applications are designed based on a client-server architecture based on various standards such as the common object request broker (CORBA), a service-oriented architecture (SOA), remote method invocation (RMI), and others. However, these applications do not directly support the many healthcare nodes and blockchain technology in the current standard. Thus, this study devises a potent blockchain-enabled socket RPC IoHT framework for medical enterprises (e.g., healthcare applications). The goal is to minimize service costs, blockchain security costs, and data storage costs in distributed mobile cloud networks. Simulation results show that the proposed blockchain-enabled socket RPC minimized the service cost by 40%, the blockchain cost by 49%, and the storage cost by 23% for healthcare applications.
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Affiliation(s)
- Abdullah Lakhan
- Department of Computer Science, Dawood University of Engineering and Technology, Karachi 74800, Pakistan; (A.L.); (F.H.K.)
- Mobile Technology Lab (MOTEL), Department of Technology, Kristiania University College, Kirkegata 24-26, 0153 Oslo, Norway;
| | - Tor Morten Groenli
- Mobile Technology Lab (MOTEL), Department of Technology, Kristiania University College, Kirkegata 24-26, 0153 Oslo, Norway;
| | - Arnab Majumdar
- Faculty of Engineering, Imperial College London, London SW7 2AZ, UK;
| | | | - Fida Hussain Khoso
- Department of Computer Science, Dawood University of Engineering and Technology, Karachi 74800, Pakistan; (A.L.); (F.H.K.)
| | - Orawit Thinnukool
- College of Arts and Technology, Chiang Mai University, Chiang Mai 50200, Thailand;
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Upadhyay MK, Majumdar A, Srivastava AK, Bose S, Suprasanna P, Srivastava S. Antioxidant enzymes and transporter genes mediate arsenic stress reduction in rice (Oryza sativa L.) upon thiourea supplementation. Chemosphere 2022; 292:133482. [PMID: 34979210 DOI: 10.1016/j.chemosphere.2021.133482] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 12/07/2021] [Accepted: 12/29/2021] [Indexed: 06/14/2023]
Abstract
Thiourea (TU) is a chemo-priming agent and non-physiological reactive oxygen species (ROS) scavenger whose application has been found to reduce As accumulation in rice grains along with improved growth and yield. The present field study explored TU-mediated mechanistic changes in silicon (Si) assimilation in root/shoot, biochemical and molecular mechanisms of arsenic (As) stress amelioration in rice cultivars. Gosai and Satabdi (IET-4786) rice cultivars were selected for field experiment at three different places; control field and two other As contaminated experimental fields (EF1 and EF2) in West Bengal, India. The average As reduction was observed to be 9.5% and 19.8% whereas the yield increment was 8.8% and 17.7% for gosai and satabdi, respectively among all the three experimental fields. The positive interrelation was also observed between improved internal ultrastructure anatomy and enhanced Si assimilation (36%-423%) upon TU application. The level of photosynthetic pigments was increased by 29.8%-99.2%. Further, activities of antioxidant enzymes were harmonically altered in TU supplemented plants. The expression of various As related transporter genes in flag leaf and developing grains (inflorescence) was changed in both the rice cultivars (gosai and satabdi). It was also presumably responsible for observed As reduction in grains. Thus, TU application was found to be an efficient and sustainable agronomic practice for amelioration of As toxicity in rice plants in As contaminated field conditions.
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Affiliation(s)
- Munish Kumar Upadhyay
- Plant Stress Biology Laboratory, Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, 221005, Uttar Pradesh, India
| | - Arnab Majumdar
- Department of Earth Sciences, Indian Institute of Science Education and Research-Kolkata, Mohanpur, 741246, West Bengal, India
| | - Ashish Kumar Srivastava
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai, Maharashtra, 400085, India; Homi Bhabha National Centre, Mumbai, Maharashtra, 400094, India
| | - Sutapa Bose
- Department of Earth Sciences, Indian Institute of Science Education and Research-Kolkata, Mohanpur, 741246, West Bengal, India
| | - Penna Suprasanna
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai, Maharashtra, 400085, India
| | - Sudhakar Srivastava
- Plant Stress Biology Laboratory, Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, 221005, Uttar Pradesh, India.
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Lakhan A, Sodhro AH, Majumdar A, Khuwuthyakorn P, Thinnukool O. A Lightweight Secure Adaptive Approach for Internet-of-Medical-Things Healthcare Applications in Edge-Cloud-Based Networks. Sensors 2022; 22:s22062379. [PMID: 35336549 PMCID: PMC8956015 DOI: 10.3390/s22062379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 03/17/2022] [Accepted: 03/18/2022] [Indexed: 12/04/2022]
Abstract
Mobile-cloud-based healthcare applications are increasingly growing in practice. For instance, healthcare, transport, and shopping applications are designed on the basis of the mobile cloud. For executing mobile-cloud applications, offloading and scheduling are fundamental mechanisms. However, mobile healthcare workflow applications with these methods are widely ignored, demanding applications in various aspects for healthcare monitoring, live healthcare service, and biomedical firms. However, these offloading and scheduling schemes do not consider the workflow applications’ execution in their models. This paper develops a lightweight secure efficient offloading scheduling (LSEOS) metaheuristic model. LSEOS consists of light weight, and secure offloading and scheduling methods whose execution offloading delay is less than that of existing methods. The objective of LSEOS is to run workflow applications on other nodes and minimize the delay and security risk in the system. The metaheuristic LSEOS consists of the following components: adaptive deadlines, sorting, and scheduling with neighborhood search schemes. Compared to current strategies for delay and security validation in a model, computational results revealed that the LSEOS outperformed all available offloading and scheduling methods for process applications by 10% security ratio and by 29% regarding delays.
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Affiliation(s)
- Abdullah Lakhan
- Department of Computer Science, Dawood University of Engineering and Technology, Karachi 74800, Pakistan;
- College of Computer Science and Artificial Intelligence, Wenzhou University, Wenzhou 325035, China
| | - Ali Hassan Sodhro
- Department of Computer Science, Kristianstad University, SE-291 88 Kristianstad, Sweden;
| | - Arnab Majumdar
- Department of Civil and Environmental Engineering, Imperial College London, London SW7 2AZ, UK;
| | | | - Orawit Thinnukool
- College of Arts, Media, and Technology, Chiang Mai University, Chiang Mai 50200, Thailand;
- Correspondence:
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Aqeel A, Hassan A, Khan MA, Rehman S, Tariq U, Kadry S, Majumdar A, Thinnukool O. A Long Short-Term Memory Biomarker-Based Prediction Framework for Alzheimer's Disease. Sensors (Basel) 2022; 22:s22041475. [PMID: 35214375 PMCID: PMC8874990 DOI: 10.3390/s22041475] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/31/2022] [Accepted: 02/13/2022] [Indexed: 05/08/2023]
Abstract
The early prediction of Alzheimer's disease (AD) can be vital for the endurance of patients and establishes as an accommodating and facilitative factor for specialists. The proposed work presents a robotized predictive structure, dependent on machine learning (ML) methods for the forecast of AD. Neuropsychological measures (NM) and magnetic resonance imaging (MRI) biomarkers are deduced and passed on to a recurrent neural network (RNN). In the RNN, we have used long short-term memory (LSTM), and the proposed model will predict the biomarkers (feature vectors) of patients after 6, 12, 21 18, 24, and 36 months. These predicted biomarkers will go through fully connected neural network layers. The NN layers will then predict whether these RNN-predicted biomarkers belong to an AD patient or a patient with a mild cognitive impairment (MCI). The developed methodology has been tried on an openly available informational dataset (ADNI) and accomplished an accuracy of 88.24%, which is superior to the next-best available algorithms.
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Affiliation(s)
- Anza Aqeel
- Department of Computer & Software Engineering, CEME, NUST, Islamabad 44800, Pakistan; (A.A.); (A.H.)
| | - Ali Hassan
- Department of Computer & Software Engineering, CEME, NUST, Islamabad 44800, Pakistan; (A.A.); (A.H.)
| | - Muhammad Attique Khan
- Department of Computer Engineering, HITEC University, Taxila 47080, Pakistan; (M.A.K.); (S.R.)
| | - Saad Rehman
- Department of Computer Engineering, HITEC University, Taxila 47080, Pakistan; (M.A.K.); (S.R.)
| | - Usman Tariq
- College of Computer Engineering and Science, Prince Sattam Bin Abdulaziz University, Al-Kharaj 16242, Saudi Arabia;
| | - Seifedine Kadry
- Department of Applied Data Science, Noroff University College, 4608 Kristiansand, Norway;
| | - Arnab Majumdar
- Department of Civil Engineering, Imperial College London, London SW7 2AZ, UK;
| | - Orawit Thinnukool
- College of Arts, Media and Technology, Chiang Mai University, Chiang Mai 50200, Thailand
- Correspondence:
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Majumdar A, Upadhyay MK, Ojha M, Afsal F, Giri B, Srivastava S, Bose S. Enhanced phytoremediation of Metal(loid)s via spiked ZVI nanoparticles: An urban clean-up strategy with ornamental plants. Chemosphere 2022; 288:132588. [PMID: 34662638 DOI: 10.1016/j.chemosphere.2021.132588] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/28/2021] [Accepted: 10/14/2021] [Indexed: 06/13/2023]
Abstract
The increasing industrialization and urbanization are also triggering environmental pollution, mostly unnoticed, in the case of soil pollution due to uncontrolled contamination by toxic elemental dispersion. The present study focused on this aspect and studied the clean-up of urban soil in a low-cost and eco-friendly way to restrict arsenic (As), lead (Pb) and mercury (Hg) contamination. Four potential ornamental plants, Catharanthus roseus (vinca), Cosmos bipinnatus (cosmos), Gomphrena globose (globosa) and Impatiens balsamina (balsamina) were used along with zero valent iron (ZVI) nanoparticles (Fe NPs) for remediation of the soil spiked with As (70 mg kg-1), Pb (600 mg kg-1) and Hg (15 mg kg-1) in a 60 d pot experiment. All plants were divided into four groups viz. control, spiked, spiked+20 mg kg-1 ZVI NP and spiked+50 mg kg-1 ZVI NP. FTIR and SEM were used for ZVI NP characterization. Soil and plant analyses and elemental assessments were done using ICP-MS, XRF and SEM. Among the four plants, cosmos showed the maximum accumulation of toxic elements (41.24 ± 0.022 mg kg-1 As, 139.15 ± 11.2 mg kg-1 Pb and 15.57 ± 0.27 mg kg-1 Hg) at 60 d. The application of ZVI NP at 20 mg kg-1 dosage was found to further augment plants' potential for metal(loid)s accumulation without negatively hampering their growth. Cosmos were observed to reduce soil As from 81.35 ± 1.34 mg kg-1 to 28.16 ± 1.38 mg kg-1 (65.38%), Pb from 1132.47 ± 4.66 to 516.09 ± 3.15 mg kg-1 (54.42%) and Hg from 17.35 ± 0.88 to 6.65 ± 0.4 mg kg-1 (61.67%) at 60 d in spiked + 20 mg kg-1 ZVI NP treatment. Balsamina was the most sensitive plant and showed the least metal(loid)s accumulation. In conclusion, three of these plants are potent enough to use together for a better and enhanced removal of toxic elements from the contaminated soil with cosmos to be the best amongst these in urban areas.
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Affiliation(s)
- Arnab Majumdar
- Department of Earth Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, India, 741246.
| | - Munish Kumar Upadhyay
- Plant Stress Biology Laboratory, Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, Uttar Pradesh, 221005, India
| | - Megha Ojha
- Department of Earth Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, India, 741246; Department of Biology, Indian Institute of Science Education and Research (IISER) Pune, Pashan, Maharashtra, 411008, India
| | - Fathima Afsal
- Department of Earth Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, India, 741246; Department of Civil Engineering, McGill University, 845 Rue Sherbrooke O, Montréal, QC H3A 0G4, Canada
| | - Biswajit Giri
- Department of Earth Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, India, 741246
| | - Sudhakar Srivastava
- Plant Stress Biology Laboratory, Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, Uttar Pradesh, 221005, India
| | - Sutapa Bose
- Department of Earth Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, India, 741246
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Reich V, Majumdar A, Müller M, Busch S. Comparison of molecular dynamics simulations of water with neutron and X-ray scattering experiments. EPJ Web Conf 2022. [DOI: 10.1051/epjconf/202227201015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The atomistic structure and dynamics obtained from molecular dynamics (MD) simulations with the example of TIP3P (rigid and flexible) and TIP4P/2005 (rigid) water is compared to neutron and X-ray scattering data at ambient conditions. Neutron and X-ray diffractograms are calculated from the simulations for four isotopic substitutions as well as the incoherent intermediate scattering function for neutrons. The resulting curves are compared to each other and to published experimental data. Differences between simulated and measured intermediate scattering functions are quantified by fitting an analytic model to the computed values. The sensitivity of the scattering curves to the parameters of the MD simulations is demonstrated on the example of two parameters, bond length and angle.
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Tsai CY, Liu WT, Lin YT, Lin SY, Houghton R, Hsu WH, Wu D, Lee HC, Wu CJ, Li LYJ, Hsu SM, Lo CC, Lo K, Chen YR, Lin FC, Majumdar A. Machine learning approaches for screening the risk of obstructive sleep apnea in the Taiwan population based on body profile. Inform Health Soc Care 2021; 47:373-388. [PMID: 34886766 DOI: 10.1080/17538157.2021.2007930] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
(a) Objective: Obstructive sleep apnea syndrome (OSAS) is typically diagnosed through polysomnography (PSG). However, PSG incurs high medical costs. This study developed new models for screening the risk of moderate-to-severe OSAS (apnea-hypopnea index, AHI ≥15) and severe OSAS (AHI ≥30) in various age groups and sexes by using anthropometric features in the Taiwan population.(b) Participants: Data were derived from 10,391 northern Taiwan patients who underwent PSG.(c) Methods: Patients' characteristics - namely age, sex, body mass index (BMI), neck circumference, and waist circumference - was obtained. To develop an age- and sex-independent model, various approaches - namely logistic regression, k-nearest neighbor, naive Bayes, random forest (RF), and support vector machine - were trained for four groups based on sex and age (men or women; aged <50 or ≥50 years). Dataset was separated independently (training:70%; validation: 10%; testing: 20%) and Cross-validated grid search was applied for model optimization. Models demonstrating the highest overall accuracy in validation outcomes for the four groups were used to predict the testing dataset.(d) Results: The RF models showed the highest overall accuracy. BMI was the most influential parameter in both types of OSAS severity screening models.(e) Conclusion: The established models can be applied to screen OSAS risk in the Taiwan population and those with similar craniofacial features.
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Affiliation(s)
- Cheng-Yu Tsai
- Centre for Transport Studies, Department of Civil and Environmental Engineering, Imperial College London, London, UK
| | - Wen-Te Liu
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Department of Engineering Science, National Cheng Kung University, Tainan, Taiwan
| | - Yin-Tzu Lin
- Department of General Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Shang-Yang Lin
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Robert Houghton
- Centre for Transport Studies, Department of Civil and Environmental Engineering, Imperial College London, London, UK
| | - Wen-Hua Hsu
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Dean Wu
- Department of Neurology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Dizziness and Balance Disorder Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Hsin-Chien Lee
- Department of Psychiatry, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Department of Psychiatry and Psychiatric Research Center, Taipei Medical University Hospital, Taipei Medical University, Taipei, Taiwan.,Department of Psychiatry, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Cheng-Jung Wu
- Department of Otolaryngology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Biomedical Science and Engineering, National Chiao Tung University, Hsinchu, Taiwan
| | - Lok Yee Joyce Li
- Department of Medicine, Shin Kong Wu-Ho-Su Memorial Hospital, Taipei, Taiwan
| | - Shin-Mei Hsu
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Chen-Chen Lo
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Kang Lo
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - You-Rong Chen
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Feng-Ching Lin
- Division of Integrated Diagnostic and Therapeutics, National Taiwan University Hospital, Taipei, Taiwan.,Department of Nursing, Cardinal Tien Junior College of Healthcare and Management, Taipei, Taiwan
| | - Arnab Majumdar
- Centre for Transport Studies, Department of Civil and Environmental Engineering, Imperial College London, London, UK
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40
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Tsai CY, Hsu WH, Lin YT, Liu YS, Lo K, Lin SY, Majumdar A, Cheng WH, Lee KY, Wu D, Lee HC, Hsu SM, Ho SC, Lin FC, Liu WT, Kuan YC. Associations among sleep-disordered breathing, arousal response, and risk of mild cognitive impairment in a northern Taiwan population. J Clin Sleep Med 2021; 18:1003-1012. [PMID: 34782066 DOI: 10.5664/jcsm.9786] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
STUDY OBJECTIVES Dementia is associated with sleep disorders. However, the relationship between dementia and sleep arousal remains unclear. This study explored the associations among sleep parameters, arousal responses, and risk of mild cognitive impairment (MCI). METHODS Participants with the chief complaints of memory problems and sleep disorders were screened from the sleep center database of Taipei Medical University Shuang-Ho Hospital, and the parameters related to the Cognitive Abilities Screening Instrument (CASI), Clinical Dementia Rating (CDR), and polysomnography (PSG) were determined. All the examinations were conducted within 6 months and without a particular order. The participants were divided into those without cognitive impairment (CDR = 0) and those with MCI (CDR = 0.5). Mean comparison, linear regression models, and logistic regression models were employed to investigate the associations among obtained variables. RESULTS This study included 31 participants without MCI and 37 with MCI (17 with amnestic MCI; 20 with multidomain MCI). Patients with MCI had significantly higher mean values of the spontaneous arousal index (SpArI) and SpArI in the nonrapid eye movement (NREM) stage (SpArINREM) than those without MCI. An increased risk of MCI was significantly associated with an increase SpArI and SpArINREM with various adjustments. Significant associations between the CASI scores and the oximetry parameters and sleep disorder indexes were observed. CONCLUSIONS Repetitive respiratory events with hypoxia were associated with cognitive dysfunction. Spontaneous arousal, especially in NREM sleep, was related to the risk of MCI. However, additional longitudinal studies are required to confirm their causality.
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Affiliation(s)
- Cheng-Yu Tsai
- Department of Civil and Environmental Engineering, Imperial College London, London, United Kingdom
| | - Wen-Hua Hsu
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Yin-Tzu Lin
- Department of General Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Yi-Shin Liu
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Kang Lo
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Shang-Yang Lin
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Arnab Majumdar
- Department of Civil and Environmental Engineering, Imperial College London, London, United Kingdom
| | - Wun-Hao Cheng
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Kang-Yun Lee
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Division of Pulmonary Medicine, Department of Internal Medicine,School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Dean Wu
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Department of Neurology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Taipei Neuroscience Institute, Taipei Medical University, Taipei, Taiwan.,Dementia Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Hsin-Chien Lee
- Department of Psychiatry, Taipei Medical University Hospital, Taipei, Taiwan
| | - Shin-Mei Hsu
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Shu-Chuan Ho
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Feng-Ching Lin
- Division of Integrated Diagnostic and Therapeutics, National Taiwan University Hospital, Taipei, Taiwan
| | - Wen-Te Liu
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Yi-Chun Kuan
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Department of Neurology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Taipei Neuroscience Institute, Taipei Medical University, Taipei, Taiwan.,Dementia Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University
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41
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Gallego-Parra S, Gomis Ó, Vilaplana R, Cuenca-Gotor VP, Martínez-García D, Rodríguez-Hernández P, Muñoz A, Romero A, Majumdar A, Ahuja R, Popescu C, Manjón FJ. Pressure-induced order-disorder transitions in β-In 2S 3: an experimental and theoretical study of structural and vibrational properties. Phys Chem Chem Phys 2021; 23:23625-23642. [PMID: 34664047 DOI: 10.1039/d1cp02969j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This joint experimental and theoretical study of the structural and vibrational properties of β-In2S3 upon compression shows that this tetragonal defect spinel undergoes two reversible pressure-induced order-disorder transitions up to 20 GPa. We propose that the first high-pressure phase above 5.0 GPa has the cubic defect spinel structure of α-In2S3 and the second high-pressure phase (ϕ-In2S3) above 10.5 GPa has a defect α-NaFeO2-type (R3̄m) structure. This phase, related to the NaCl structure, has not been previously observed in spinels under compression and is related to both the tetradymite structure of topological insulators and to the defect LiTiO2 phase observed at high pressure in other thiospinels. Structural characterization of the three phases shows that α-In2S3 is softer than β-In2S3 while ϕ-In2S3 is harder than β-In2S3. Vibrational characterization of the three phases is also provided, and their Raman-active modes are tentatively assigned. Our work shows that the metastable α phase of In2S3 can be accessed not only by high temperature or varying composition, but also by high pressure. On top of that, the pressure-induced β-α-ϕ sequence of phase transitions evidences that β-In2S3, a BIII2XV3 compound with an intriguing structure typical of AIIBIII2XVI4 compounds (intermediate between thiospinels and ordered-vacancy compounds) undergoes: (i) a first phase transition at ambient pressure to a disordered spinel-type structure (α-In2S3), isostructural with those found at high pressure and high temperature in other BIII2XV3 compounds; and (ii) a second phase transition to the defect α-NaFeO2-type structure (ϕ-In2S3), a distorted NaCl-type structure that is related to the defect NaCl phase found at high pressure in AIIBIII2XVI4 ordered-vacancy compounds and to the defect LiTiO2-type phase found at high pressure in AIIBIII2XVI4 thiospinels. This result shows that In2S3 (with its intrinsic vacancies) has a similar pressure behaviour to thiospinels and ordered-vacancy compounds of the AIIBIII2XVI4 family, making β-In2S3 the union link between such families of compounds and showing that group-13 thiospinels have more in common with ordered-vacancy compounds than with oxospinels and thiospinels with transition metals.
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Affiliation(s)
- Samuel Gallego-Parra
- Instituto de Diseño para la Fabricación y Producción Automatizada, MALTA Consolider Team, Universitat Politècnica de València, 46022 València, Spain.
| | - Óscar Gomis
- Centro de Tecnologías Físicas, MALTA Consolider Team, Universitat Politècnica de València, 46022 València, Spain.
| | - Rosario Vilaplana
- Centro de Tecnologías Físicas, MALTA Consolider Team, Universitat Politècnica de València, 46022 València, Spain.
| | - Vanesa Paula Cuenca-Gotor
- Instituto de Diseño para la Fabricación y Producción Automatizada, MALTA Consolider Team, Universitat Politècnica de València, 46022 València, Spain.
| | - Domingo Martínez-García
- Departamento de Física Aplicada-ICMUV-MALTA Consolider Team, Universitat de València, c/Dr. Moliner 50, 46100 Burjassot (València), Spain
| | - Plácida Rodríguez-Hernández
- Departamento de Física, Instituto de Materiales y Nanotecnología, MALTA Consolider Team, Universidad de La Laguna, 38207 San Cristóbal de La Laguna, Spain
| | - Alfonso Muñoz
- Departamento de Física, Instituto de Materiales y Nanotecnología, MALTA Consolider Team, Universidad de La Laguna, 38207 San Cristóbal de La Laguna, Spain
| | - Aldo Romero
- Physics Department, West Virginia University, Morgantown, 26505, USA
| | - Arnab Majumdar
- Department of Physics and Astronomy, Uppsala University, Box 516, Uppsala, SE-75120, Sweden.,Département de Physique and Regroupement Québécois sur les Matériaux de Pointe, Université de Montréal, C. P. 6128, Succursale Centre-Ville, Montréal, Québec H3C 3J7, Canada
| | - Rajeev Ahuja
- Department of Physics and Astronomy, Uppsala University, Box 516, Uppsala, SE-75120, Sweden.,Department of Physics, Indian Institute of Technology Ropar, Rupnagar 140001, Punjab, India
| | - Catalin Popescu
- ALBA-CELLS, MALTA Consolider Team, 08290 Cerdanyola del Valles (Barcelona), Catalonia, Spain
| | - Francisco Javier Manjón
- Instituto de Diseño para la Fabricación y Producción Automatizada, MALTA Consolider Team, Universitat Politècnica de València, 46022 València, Spain.
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Majumdar A, Upadhyay MK, Giri B, Srivastava S, Srivastava AK, Jaiswal MK, Bose S. Arsenic dynamics and flux assessment under drying-wetting irrigation and enhanced microbial diversity in paddy soils: A four year study in Bengal delta plain. J Hazard Mater 2021; 409:124443. [PMID: 33191021 DOI: 10.1016/j.jhazmat.2020.124443] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 10/02/2020] [Accepted: 10/29/2020] [Indexed: 06/11/2023]
Abstract
Arsenic (As) assessment in agricultural soils and corresponding crops is necessary from the global health safety perspective. To the best of our knowledge, we are reporting for the first time, As flux determining parametric equations for paddy field with seasonal rice cultivation under conventional flooding and dry-wet irrigation approaches. Rigorous field experiments and measuring quantitative parameters, flushed out or percolated into the deeper soil As flux was assessed. A wintery (boro)-monsoonal (aman) study from 2016 to 2019 has been conducted showing the efficiency of dry-wet irrigation on reduction of soil As bioavailability. The reduction in boro was 52.4% in 2016 to 64.8% in 2019 while in aman, it was 61% in 2016 to 74.9% in 2019. Low bioavailability was correlated to plant's internal vascular structure that was found more rigid and firm in dry-wet field grown plants. Observed soil physico-chemical parameters clearly influenced As bioavailability as well as soil microbial community. Assessment of microbial diversity using metagenomics under altered water regime was done by population analysis, relative abundance, species richness, Krona chart comparison. Dry-wet field was found to be more diverse and enriched in microbial community than that of the flooded soil indicating an affective reduction of As bioavailability under biotic-abiotic factors.
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Affiliation(s)
- Arnab Majumdar
- Department of Earth Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal 741246, India
| | - Munish Kumar Upadhyay
- Plant Stress Biology Laboratory, Institute of Environment & Sustainable Development, Banaras Hindu University, Varanasi 221005, India
| | - Biswajit Giri
- Department of Earth Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal 741246, India
| | - Sudhakar Srivastava
- Plant Stress Biology Laboratory, Institute of Environment & Sustainable Development, Banaras Hindu University, Varanasi 221005, India
| | - Ashish Kumar Srivastava
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai 400085, India; Homi Bhabha National Institute, Mumbai 400094, India
| | - Manoj Kumar Jaiswal
- Department of Earth Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal 741246, India
| | - Sutapa Bose
- Department of Earth Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal 741246, India.
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Liu YS, Tsai CY, Majumdar A, Lin SY, Lin YT, Ho SC, Cheng WH, Liu WT, Wu D, Lee HC, Kuan YC, Wu CJ, Lo CC. 389 The Association between Arousals and Neurochemical Biomarkers Accumulation in Obstructive Sleep Apnea with Low Arousal Threshold. Sleep 2021. [DOI: 10.1093/sleep/zsab072.388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction
Previous studies indicated the accumulation of neurodegenerative protein may be caused by higher Obstructive sleep apnea syndrome (OSAS) severity. However, the association between arousal-related parameters induced by OSAS and the amyloid burden remains unclear. The aim of this study is to investigate the association between arousal threshold (ArTH) and neurochemical protein accumulation in OSAS patients.
Methods
Suspected OSAS participants were performed Mini-mental status examination (MMSE) and full-night polysomnography (PSG) in the sleep center of Taipei Medical University Shuang Ho Hospital, Taiwan. On the same morning, the blood samples were obtained from the participants. The concentrations of total Tau (T-Tau) and amyloid beta peptide 42 (Aβ42) were quantified by ultra-sensitive immunomagnetic reduction assays. An overall of 23 participants were enrolled and classified into Low ArTH group (n=12) and High ArTH group (n=11) based on low ArTH criteria. Regarding the statistical methods, for categorical variables and continuous variables, Fisher’s exact test and Mann-Whitney U test were performed to investigate the differences between groups, respectively. The associations between biomarkers concentrations and PSG parameters were assessed by Spearman’s correlation.
Results
Regarding the demographic characteristics in two subgroups, significantly lower body-mass index and OSAS severity were noted in Low ArTH group (p<0.05). The MMSE was in normal range in both groups and had no significant differences in subgroups. For PSG parameters, there were significantly lower desaturation index, AHI and higher spontaneous arousals index in each sleep stage in Low ArTH group (p<0.01). Nevertheless, in the plasma neurochemical biomarkers, Aβ42 and Aβ42 X T-Tau were significantly higher in Low ArTH group (p<0.05). Moreover, in Low ArTH group, T-Tau was positively correlated with respiratory arousals index (r=0.61, p<0.05) and all arousals index (r=0.76, p<0.01), respectively. The positive correlations between Aβ42 X T-Tau and respiratory arousals index (r=0.62, p<0.05), all arousals index (r=0.75, p<0.01) could also be observed. There were no significant correlations noted in High ArTH group.
Conclusion
OSAS patients with low ArTH have higher neurochemical biomarker levels. Also, the significantly positive correlations between arousals and biomarkers were observed in that group.
Support (if any):
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Affiliation(s)
- Yi-Shin Liu
- School of Respiratory Therapy, College of Medicine, Taipei Medical University
| | - Cheng-Yu Tsai
- Department of Civil and Environmental Engineering, Imperial College London
| | - Arnab Majumdar
- Department of Civil and Environmental Engineering, Imperial College London
| | - Shang-Yang Lin
- School of Respiratory Therapy, College of Medicine, Taipei Medical University
| | - Yin-Tzu Lin
- Department of General Medicine, Shuang Ho Hospital, Taipei Medical University
| | - Shu-Chuan Ho
- School of Respiratory Therapy, College of Medicine, Taipei Medical University
| | - Wun-Hao Cheng
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University
| | - Wen-Te Liu
- School of Respiratory Therapy, College of Medicine, Taipei Medical University
| | - Dean Wu
- Department of Neurology, Shuang Ho Hospital, Taipei Medical University
| | - Hsin-Chien Lee
- Department of Psychiatry, Shuang-Ho Hospital, Taipei Medical University
| | - Yi-Chun Kuan
- Department of Neurology, Shuang Ho Hospital, Taipei Medical University
| | - Cheng-Jung Wu
- Department of Otolaryngology, Shuang-Ho Hospital, Taipei Medical University
| | - Chen-Chen Lo
- Sleep Center, Shuang Ho Hospital, Taipei Medical University
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Srivastava AK, Pandey M, Ghate T, Kumar V, Upadhyay MK, Majumdar A, Sanjukta AK, Agrawal AK, Bose S, Srivastava S, Suprasanna P. Chemical intervention for enhancing growth and reducing grain arsenic accumulation in rice. Environ Pollut 2021; 276:116719. [PMID: 33640652 DOI: 10.1016/j.envpol.2021.116719] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 02/05/2021] [Accepted: 02/06/2021] [Indexed: 06/12/2023]
Abstract
Arsenic (As) is a ubiquitous environmental carcinogen that enters the human food chain mainly through rice grains. In the present study, we evaluated the potential of thiourea (TU; non-physiological reactive oxygen species scavenger) in mitigating the negative effects of arsenic (As) stress in indica rice variety IR64, with the overall aim to reduce grain As accumulation. At seedling stage, As + TU treatment induced the formation of more numerous and longer crown roots compared with As alone. The As accumulation in main root, crown root, lower leaf and upper leaf was significantly reduced to 0.1-, 0.14-, 0.16-, 0.14-fold, respectively in As + TU treated seedlings compared with those of As alone. This reduced As accumulation was also coincided with light-dependent suppression in the expression levels of aquaporins and photosynthesis-related genes in As + TU treated roots. In addition, the foliar-supplemented TU under As-stress maintained reducing redox conditions which decreased the rate of As accumulation in flag leaves and, eventually grain As by 0.53-fold compared with those of As treatment. The agronomic feasibility of TU was validated under naturally As contaminated sites of Nadia (West Bengal, India). The tiller numbers and crop productivity (kg seed/ha) of TU-sprayed plants were increased by 1.5- and 1.18-fold, respectively; while, grain As accumulation was reduced by 0.36-fold compared with those of water-sprayed control. Thus, this study established TU application as a sustainable solution for cultivating rice in As-contaminated field conditions.
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Affiliation(s)
- Ashish Kumar Srivastava
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai, Maharashtra, 400 085, India; Homi Bhabha National Institute, Mumbai, 400094, India.
| | - Manish Pandey
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai, Maharashtra, 400 085, India
| | - Tejashree Ghate
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai, Maharashtra, 400 085, India
| | - Vikash Kumar
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai, Maharashtra, 400 085, India
| | - Munish Kumar Upadhyay
- Plant Stress Biology Laboratory, Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, 221005, UP, India
| | - Arnab Majumdar
- Department of Earth Sciences, Indian Institute of Science Education and Research-Kolkata, Mohanpur, West Bengal, 741246, India
| | - Abhay Kumar Sanjukta
- Analytical Chemistry Division, Bhabha Atomic Research Centre, Mumbai, Maharashtra, 400 085, India
| | - Ashish Kumar Agrawal
- Technical Physics Division, Bhabha Atomic Research Centre, Mumbai, Maharashtra, 400 085, India
| | - Sutapa Bose
- Department of Earth Sciences, Indian Institute of Science Education and Research-Kolkata, Mohanpur, West Bengal, 741246, India
| | - Sudhakar Srivastava
- Plant Stress Biology Laboratory, Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, 221005, UP, India
| | - Penna Suprasanna
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai, Maharashtra, 400 085, India; Homi Bhabha National Institute, Mumbai, 400094, India
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45
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Upadhyay MK, Majumdar A, Barla A, Bose S, Srivastava S. Thiourea supplementation mediated reduction of grain arsenic in rice (Oryza sativa L.) cultivars: A two year field study. J Hazard Mater 2021; 407:124368. [PMID: 33153787 DOI: 10.1016/j.jhazmat.2020.124368] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 09/28/2020] [Accepted: 10/21/2020] [Indexed: 06/11/2023]
Abstract
The present study delineates the interactions of arsenic (As), a carcinogenic metalloid, and thiourea (TU), a non-physiological reactive oxygen species (ROS) scavenger, in rice plants grown in As contaminated fields in West Bengal, India. The study was performed for four consecutive seasons (two boro and two aman) in 2016 and 2017 with two local rice cultivars; Gosai and Satabdi (IET-4786) in a control and two As contaminated experimental fields. Thiourea (0.05% wt/vol) treatment was given in the form of seed priming and foliar spray. Thiourea significantly improved growth and yield of rice plants and reduced As concentration in root, shoot, husk and grains in both cultivars and fields. The reduction in As concentration ranged from 10.3% to 27.5% in four seasons in different fields. The average (four seasons) increase in yield was recorded about ~8.1% and ~11.5% in control, ~20.2% and ~18.6% in experimental field 1, and ~16.2% and ~24.1% in experimental field 2, for gosai and satabdi, respectively. Mean hazard quotient (HQ) and incremental lifetime cancer risk (ILCR) values of As reduced upon TU supplementation for both cultivars as compared to that of non-TU plants. Hence, TU can be effectively used to cultivate rice safely in As contaminated fields.
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Affiliation(s)
- Munish Kumar Upadhyay
- Plant Stress Biology Laboratory, Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi 221005, Uttar Pradesh, India
| | - Arnab Majumdar
- Department of Earth Sciences, Indian Institute of Science Education and Research-Kolkata, Mohanpur 741246, West Bengal, India
| | - Anil Barla
- Department of Earth Sciences, Indian Institute of Science Education and Research-Kolkata, Mohanpur 741246, West Bengal, India
| | - Sutapa Bose
- Department of Earth Sciences, Indian Institute of Science Education and Research-Kolkata, Mohanpur 741246, West Bengal, India
| | - Sudhakar Srivastava
- Plant Stress Biology Laboratory, Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi 221005, Uttar Pradesh, India.
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Bajpai J, Majumdar A, Satwik R, Rohatgi N, Jain V, Gupta D, Agarwal R, Mittal S, Verma SK, Parikh PM, Aggarwal S. Practical consensus recommendations on fertility preservation in patients with breast cancer. South Asian J Cancer 2020; 7:110-114. [PMID: 29721475 PMCID: PMC5909286 DOI: 10.4103/sajc.sajc_113_18] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Young women diagnosed with cancer today have a greater chance of long-term survival than ever before. Successful survivorship for this group of patients includes maintaining a high quality of life after a cancer diagnosis and treatment; however, lifesaving treatments such as chemotherapy, radiation, and surgery can impact survivors by impairing reproductive and endocrine health. Expert oncologists along with reproductive medicine specialists discuss fertility preservation options in this chapter since fertility preservation is becoming a priority for young women with breast cancer. This expert group used data from published literature, practical experience and opinion of a large group of academic oncologists to arrive at these practical consensus recommendations for the benefit of community oncologists.
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Affiliation(s)
- Jyoti Bajpai
- Department of Medical Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - A Majumdar
- Center of IVF and Human Reproduction, Sir Gangaram Hospital, New Delhi, India
| | - R Satwik
- Center of IVF and Human Reproduction, Sir Gangaram Hospital, New Delhi, India
| | - N Rohatgi
- Department of Medical Oncology, Max Saket Hospital, New Delhi, India
| | - V Jain
- Department of Gynaecology and Obstretics, Ludhiana Medicity Hospital, Ludhiana, Punjab, India
| | - D Gupta
- Department of Medical Oncology, Dharamshila Cancer Hospital, New Delhi, India
| | - R Agarwal
- Department of Surgical Oncology, Medanta Hospital, Gurugram, Haryana, India
| | - S Mittal
- Department of Medical Oncology, Action Balajee Cancer Center, New Delhi, India
| | - S K Verma
- Department of Medical Oncology, Jolly Grant Himalayan Institute, Dehradoon, Uttarakhand, India
| | - P M Parikh
- Department of Oncology, Shalby Cancer and Research Institutes, Mumbai, Maharashtra, India
| | - S Aggarwal
- Department of Medical Oncology, Sir Gangaram Hospital, New Delhi, India
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47
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Maharaj K, Majumdar A. Cautionary findings. Br Dent J 2020; 229:72. [DOI: 10.1038/s41415-020-1940-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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48
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Upadhyay MK, Majumdar A, Suresh Kumar J, Srivastava S. Arsenic in Rice Agro-Ecosystem: Solutions for Safe and Sustainable Rice Production. Front Sustain Food Syst 2020. [DOI: 10.3389/fsufs.2020.00053] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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49
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Bou Jawde S, Walkey AJ, Majumdar A, O'Connor GT, Smith BJ, Bates JHT, Lutchen KR, Suki B. Tracking respiratory mechanics around natural breathing rates via variable ventilation. Sci Rep 2020; 10:6722. [PMID: 32317734 PMCID: PMC7174375 DOI: 10.1038/s41598-020-63663-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Accepted: 03/26/2020] [Indexed: 11/08/2022] Open
Abstract
Measuring respiratory resistance and elastance as a function of time, tidal volume, respiratory rate, and positive end-expiratory pressure can guide mechanical ventilation. However, current measurement techniques are limited since they are assessed intermittently at non-physiological frequencies or involve specialized equipment. To this end, we introduce ZVV, a practical approach to continuously track resistance and elastance during Variable Ventilation (VV), in which frequency and tidal volume vary from breath-to-breath. ZVV segments airway pressure and flow recordings into individual breaths, calculates resistance and elastance for each breath, bins them according to frequency or tidal volume and plots the results against bin means. ZVV's feasibility was assessed clinically in five human patients with acute lung injury, experimentally in five mice ventilated before and after lavage injury, and computationally using a viscoelastic respiratory model. ZVV provided continuous measurements in both settings, while the computational study revealed <2% estimation errors. Our findings support ZVV as a feasible technique to assess respiratory mechanics under physiological conditions. Additionally, in humans, ZVV detected a decrease in resistance and elastance with time by 12.8% and 6.2%, respectively, suggesting that VV can improve lung recruitment in some patients and can therefore potentially serve both as a dual diagnostic and therapeutic tool.
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Affiliation(s)
- Samer Bou Jawde
- Department of Biomedical Engineering, Boston University, Boston, MA, USA
| | - Allan J Walkey
- Department of Medicine, Pulmonary, Allergy, Sleep, & Critical Care Medicine, Boston University, Boston, MA, USA
| | - Arnab Majumdar
- Department of Biomedical Engineering, Boston University, Boston, MA, USA
| | - George T O'Connor
- Department of Medicine, Pulmonary, Allergy, Sleep, & Critical Care Medicine, Boston University, Boston, MA, USA
| | - Bradford J Smith
- Department of Bioengineering, University of Colorado Denver | Anschutz Medical Campus, Aurora, CO, USA
| | - Jason H T Bates
- Pulmonary/Critical Care Division, University of Vermont, Burlington, VT, USA
| | - Kenneth R Lutchen
- Department of Biomedical Engineering, Boston University, Boston, MA, USA
| | - Béla Suki
- Department of Biomedical Engineering, Boston University, Boston, MA, USA.
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Teoh R, Schumann U, Majumdar A, Stettler MEJ. Mitigating the Climate Forcing of Aircraft Contrails by Small-Scale Diversions and Technology Adoption. Environ Sci Technol 2020; 54:2941-2950. [PMID: 32048502 DOI: 10.1021/acs.est.9b05608] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
The climate forcing of contrails and induced-cirrus cloudiness is thought to be comparable to the cumulative impacts of aviation CO2 emissions. This paper estimates the impact of aviation contrails on climate forcing for flight track data in Japanese airspace and propagates uncertainties arising from meteorology and aircraft black carbon (BC) particle number emissions. Uncertainties in the contrail age, coverage, optical properties, radiative forcing, and energy forcing (EF) from individual flights can be 2 orders of magnitude larger than the fleet-average values. Only 2.2% [2.0, 2.5%] of flights contribute to 80% of the contrail EF in this region. A small-scale strategy of selectively diverting 1.7% of the fleet could reduce the contrail EF by up to 59.3% [52.4, 65.6%], with only a 0.014% [0.010, 0.017%] increase in total fuel consumption and CO2 emissions. A low-risk strategy of diverting flights only if there is no fuel penalty, thereby avoiding additional long-lived CO2 emissions, would reduce contrail EF by 20.0% [17.4, 23.0%]. In the longer term, widespread use of new engine combustor technology, which reduces BC particle emissions, could achieve a 68.8% [45.2, 82.1%] reduction in the contrail EF. A combination of both interventions could reduce the contrail EF by 91.8% [88.6, 95.8%].
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Affiliation(s)
- Roger Teoh
- Centre for Transport Studies, Department of Civil and Environmental Engineering, Imperial College London, London SW7 2AZ, U.K
| | - Ulrich Schumann
- Institute of Atmospheric Physics, Deutsches Zentrum für Luft- und Raumfahrt, 82234 Oberpfaffenhofen, Germany
| | - Arnab Majumdar
- Centre for Transport Studies, Department of Civil and Environmental Engineering, Imperial College London, London SW7 2AZ, U.K
| | - Marc E J Stettler
- Centre for Transport Studies, Department of Civil and Environmental Engineering, Imperial College London, London SW7 2AZ, U.K
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