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Saqib QM, Ahmad I, Mannan A, Mahmood J, Ameen S, Patil CS, Noman M, Kim J, Okyay MS, Patil SR, Ko Y, Noh HJ, Wong BM, Kim B, Bae J, Baek JB. Triboelectric Energy Harvesting from Highly Conjugated Fused Aromatic Ladder Structure Under Extreme Environmental Conditions. Adv Mater 2024; 36:e2311029. [PMID: 38299366 DOI: 10.1002/adma.202311029] [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] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 01/10/2024] [Indexed: 02/02/2024]
Abstract
Practical application of triboelectric nanogenerators (TENGs) has been challenging, particularly, under harsh environmental conditions. This work proposes a novel 3D-fused aromatic ladder (FAL) structure as a tribo-positive material for TENGs, to address these challenges. The 3D-FAL offers a unique materials engineering platform for tailored properties, such as high specific surface area and porosity, good thermal and mechanical stability, and tunable electronic properties. The fabricated 3D-FAL-based TENG reaches a maximum peak power density of 451.2 µW cm-2 at 5 Hz frequency. More importantly, the 3D-FAL-based TENG maintains stable output performance under harsh operating environments, over wide temperature (-45-100 °C) and humidity ranges (8.3-96.7% RH), representing the development of novel FAL for sustainable energy generation under challenging environmental conditions. Furthermore, the 3D-FAL-based TENG proves to be a promising device for a speed monitoring system engaging reconstruction in virtual reality in a snowy environment.
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Affiliation(s)
- Qazi Muhammad Saqib
- Department of Ocean System Engineering, Jeju National University, Jeju, 63243, Republic of Korea
| | - Ishfaq Ahmad
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
- POLYMAT, University of the Basque Country UPV/EHU, Avenida de Tolosa 72, 20018 Donostia-San, Sebastian, 20018, Spain
| | - Abdul Mannan
- Department of Physics, University of Management and Technology, Lahore, 54770, Pakistan
| | - Javeed Mahmood
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
- Oxide & Organic Nanomaterials for Energy & Environment (ONE) Laboratory, Chemistry Program; Advanced Membranes & Porous Materials (AMPM) Center; KAUST Catalysis Center (KCC); Physical Science & Engineering (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955, Saudi Arabia
| | - Shahid Ameen
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Chandrashekhar S Patil
- Department of Ocean System Engineering, Jeju National University, Jeju, 63243, Republic of Korea
| | - Muhammad Noman
- Department of Ocean System Engineering, Jeju National University, Jeju, 63243, Republic of Korea
| | - Jungmin Kim
- Department of Ocean System Engineering, Jeju National University, Jeju, 63243, Republic of Korea
| | - Mahmut Sait Okyay
- Materials Science & Engineering Program, Department of Chemistry, University of California-Riverside, Riverside, CA, 92521, USA
| | - Swapnil R Patil
- Department of Ocean System Engineering, Jeju National University, Jeju, 63243, Republic of Korea
| | - Youngbin Ko
- Department of Ocean System Engineering, Jeju National University, Jeju, 63243, Republic of Korea
| | - Hyuk-Jun Noh
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Bryan M Wong
- Materials Science & Engineering Program, Department of Chemistry, University of California-Riverside, Riverside, CA, 92521, USA
| | - BongSoo Kim
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Jinho Bae
- Department of Ocean System Engineering, Jeju National University, Jeju, 63243, Republic of Korea
| | - Jong-Beom Baek
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
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Ahmad I, El-Boghdadly K. Time for confidential enquiries into airway complications? Anaesthesia 2024; 79:349-352. [PMID: 38114266 DOI: 10.1111/anae.16210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/24/2023] [Indexed: 12/21/2023]
Affiliation(s)
- I Ahmad
- Department of Anaesthesia and Peri-operative Medicine, Guy's and St. Thomas' NHS Foundation Trust, London, UK
- King's College London, London, UK
| | - K El-Boghdadly
- Department of Anaesthesia and Peri-operative Medicine, Guy's and St. Thomas' NHS Foundation Trust, London, UK
- King's College London, London, UK
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Xie Y, Ahmad I, Ikpe TIS, Sofia EF, Seno H. What Influence Could the Acceptance of Visitors Cause on the Epidemic Dynamics of a Reinfectious Disease?: A Mathematical Model. Acta Biotheor 2024; 72:3. [PMID: 38402514 PMCID: PMC10894808 DOI: 10.1007/s10441-024-09478-w] [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] [Received: 05/20/2023] [Accepted: 01/30/2024] [Indexed: 02/26/2024]
Abstract
The globalization in business and tourism becomes crucial more and more for the economical sustainability of local communities. In the presence of an epidemic outbreak, there must be such a decision on the policy by the host community as whether to accept visitors or not, the number of acceptable visitors, or the condition for acceptable visitors. Making use of an SIRI type of mathematical model, we consider the influence of visitors on the spread of a reinfectious disease in a community, especially assuming that a certain proportion of accepted visitors are immune. The reinfectivity of disease here means that the immunity gained by either vaccination or recovery is imperfect. With the mathematical results obtained by our analysis on the model for such an epidemic dynamics of resident and visitor populations, we find that the acceptance of visitors could have a significant influence on the disease's endemicity in the community, either suppressive or supportive.
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Affiliation(s)
- Ying Xie
- Department of Mathematical and Information Sciences, Graduate School of Information Sciences, Tohoku University, Aramaki-Aza-Aoba 6-3-09, Aoba-ku, Sendai, 980-8579, Miyagi, Japan
| | - Ishfaq Ahmad
- Department of Mathematical and Information Sciences, Graduate School of Information Sciences, Tohoku University, Aramaki-Aza-Aoba 6-3-09, Aoba-ku, Sendai, 980-8579, Miyagi, Japan
| | - ThankGod I S Ikpe
- Department of Mathematical and Information Sciences, Graduate School of Information Sciences, Tohoku University, Aramaki-Aza-Aoba 6-3-09, Aoba-ku, Sendai, 980-8579, Miyagi, Japan
| | - Elza F Sofia
- Department of Mathematical and Information Sciences, Graduate School of Information Sciences, Tohoku University, Aramaki-Aza-Aoba 6-3-09, Aoba-ku, Sendai, 980-8579, Miyagi, Japan
| | - Hiromi Seno
- Department of Mathematical and Information Sciences, Graduate School of Information Sciences, Tohoku University, Aramaki-Aza-Aoba 6-3-09, Aoba-ku, Sendai, 980-8579, Miyagi, Japan.
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Ahmad I, Ahmad T, Rehman SU, Mufrah Almanjahie I, Alshahrani F. A detailed study on quantification and modeling of drought characteristics using different copula families. Heliyon 2024; 10:e25422. [PMID: 38356506 PMCID: PMC10864975 DOI: 10.1016/j.heliyon.2024.e25422] [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: 08/28/2023] [Revised: 01/16/2024] [Accepted: 01/26/2024] [Indexed: 02/16/2024] Open
Abstract
This study delves into analyzing drought patterns in Baluchistan by applying copula-based bivariate probabilistic models complemented by Severity Duration Frequency (SDF) curves. The calculation of the Standardized Precipitation Index (SPI) hinges on monthly aggregate precipitation data from ten distinct sites compiled over six-month periods. After evaluating various parametric distributions, the Log-Normal distribution emerges as suitable for modeling drought severity and duration. A range of bivariate copulas is employed to simulate the characteristics of drought severity and duration, which are then compared against observed data. Remarkably, the Gumbel copula classified as an extreme value copula-outperforms its counterparts according to diverse statistical benchmarks. By utilizing the dependence function, we derive the conditional distribution of drought variables: severity and duration. These conditional distributions subsequently inform the calculation of return periods, forming the basis for constructing SDF diagrams at fixed recurrence levels across the study region. The study's finding indicates that a severe drought could occur over the region with higher return periods for a specific duration. The implications of this research are significant, showcasing the potential of copula-based joint modeling techniques to generate frequency curves for drought severity and duration. This development holds promise for effective water resource management and the formulation of strategies to mitigate the impact of drought in vulnerable regions.
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Affiliation(s)
- Ishfaq Ahmad
- Department of Mathematics and Statistics, Faculty of Basic and Applied Sciences, International Islamic University, 44000 Islamabad, Pakistan
| | - Touqeer Ahmad
- Ècole Nationale de la Statistique et de l'Analyse de l'Information (ENSAI), France
| | - Shafique Ur Rehman
- School of Economics and Management, University of Chinese Academy of Sciences, China
| | | | - Fatimah Alshahrani
- Department of Mathematical Sciences, College of Science, Princess Nourah bint Abdulrahman University, P. O. Box 84428, Riyadh 11671, Saudi Arabia
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Arif H, Ashraf R, Khan F, Khattak YR, Nisar H, Ahmad I. Total temporomandibular joint reconstruction prosthesis in hemifacial microsomia: A systematic review. Orthod Craniofac Res 2024; 27:15-26. [PMID: 37533308 DOI: 10.1111/ocr.12695] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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] [Received: 02/03/2023] [Revised: 07/13/2023] [Accepted: 07/18/2023] [Indexed: 08/04/2023]
Abstract
Hypoplastic asymmetry due to hemifacial microsomia (HFM) often represents the most difficult reconstruction in the craniomaxillofacial clinic. Although autogenous grafts are generally used for temporomandibular joint reconstruction (TMJR), the use of TMJR prostheses is not well established. The aim of this review was to identify, collect and analyse the use of extended TMJR (eTMJR) prostheses in patients with HFM, describing clinical features, surgical procedures and postoperative complications. Online searches of all major databases were performed according to PRISMA guidelines. All studies with HFM patients treated with the eTMJR prostheses were included. Descriptive statistics were used for data analysis. A total of 19 studies, including 08 case studies, 06 case series and 05 retrospective cohort studies, met the inclusion criteria, where a total of 42 HFM patients were reported from 18 countries, mostly from the United States (05; 26%). Fifteen of the 42 cases (~36%) were male. The mean ± SD (range) age of patients in all studies was 19.79 ± 5.81 (9-36) years. The mean ± SD (range) of patient follow-up was 41.30 ± 35.50 (6-136) months. A total of 5 (10.6%) patients were implanted with bilateral eTMJR prostheses. The Pruzansky classification was used in 18 (~89.5%) studies, OMENS classification in 01 (~5%) study, whereas no classification was reported in one study. Only 01 (7.1%) study had documented the eTMJR classification for the prosthesis used. In growing patients with or without a history of failed autogenous tissues, TMJR prostheses may provide a viable alternative. Randomized studies with large cohorts are warranted to validate these preliminary results.
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Affiliation(s)
- H Arif
- Nishtar Hospital, Multan, Pakistan
| | - R Ashraf
- Nishtar Hospital, Multan, Pakistan
| | - F Khan
- Services Institute of Medical Sciences, Lahore, Pakistan
| | - Y R Khattak
- Oral and Maxillofacial Surgery, Hayatabad Medical Complex, Peshawar, Pakistan
| | - H Nisar
- Pakistan Institute of Engineering and Applied Sciences (PIEAS), Islamabad, Pakistan
| | - I Ahmad
- Institute of Radiotherapy and Nuclear Medicine (IRNUM), Peshawar, Pakistan
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Ahmad I, Ahmad T, Shahzad U, Ameer MA, Emam W, Tashkandy Y, Badar Z. Estimation of regional and at-site quantiles of extreme winds under flood index procedure. Heliyon 2024; 10:e23388. [PMID: 38268582 PMCID: PMC10805914 DOI: 10.1016/j.heliyon.2023.e23388] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 11/10/2023] [Accepted: 12/03/2023] [Indexed: 01/26/2024] Open
Abstract
Extreme winds are becoming more common among environmental events with the most catastrophic societal consequences. A regional frequency analysis of Daily Annual Maximum Wind Speed (DAMWS) is necessary not only for a comprehensive understanding of wind hazards but also for infrastructure design and safety, wind energy potential, disaster risk reduction, insurance and risk assessment in a particular region of study. This study investigated regional frequency analysis of DAMWS of Baluchistan and Sindh provinces of Pakistan. L-moments regionalization techniques along with flood index procedure were applied to DAMWS records of 21 stations from 1990 to 2019 across the study area. We intended to find the regional frequency distribution for maximum winds and predict the returns for extreme winds events in the future. Only one station namely Lasbella was found to be discordant. With the help of cluster analysis, the remaining 20 stations were further divided into two homogeneous. Heterogeneity measures validate that both regions are homogenous with allotted stations. Regional quantiles for both regions are estimated through best-fit probability distribution among Generalized Normal (GNO), Generalized Logistic (GLO), Pearson Type 3 (P3), Generalized Pareto (GPA), and Generalized Extreme Value (GEV). Robustness of GLO distribution compared to GEV distribution is assessed through Monte Carlo simulations of relative bias and relative root mean square error. Findings clearly show that GLO distribution is the best for regional modeling. Furthermore, with the help of index flood procedure we determined at-site quantiles of all stations for various return periods. These estimated quantiles are of valuable information for various sectors, including infrastructure, energy, disaster management, and climate resilience, leading to improved planning, development, and risk reduction in the face of wind-related hazards in Sindh and Balochistan provinces of Pakistan.
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Affiliation(s)
- Ishfaq Ahmad
- Department of Mathematics and Statistics, Faculty of Basic and Applied Sciences, International Islamic University, 44000, Islamabad, Pakistan
| | - Touqeer Ahmad
- CREST-ENSAI, 51 Rue Blaise Pascal, 35170, Bruz, France
| | - Usman Shahzad
- Department of Mathematics and Statistics, Faculty of Basic and Applied Sciences, International Islamic University, 44000, Islamabad, Pakistan
| | - Muhammad Athar Ameer
- Department of Mathematics and Statistics, Faculty of Basic and Applied Sciences, International Islamic University, 44000, Islamabad, Pakistan
| | - Walid Emam
- Department of Statistics and Operations Research, Faculty of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Yusra Tashkandy
- Department of Statistics and Operations Research, Faculty of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Zanib Badar
- Government Associate College for Girls, Chak-Beli, Rawalpindi, Pakistan
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Wahid NW, Deutsch P, Amlani A, Gupta KK, Griffiths H, Ahmad I. Bedside open tracheostomy in COVID-19 patients - a safe and swift approach. Med Oral Patol Oral Cir Bucal 2023:26326. [PMID: 37992143 DOI: 10.4317/medoral.26326] [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: 08/30/2023] [Accepted: 10/09/2023] [Indexed: 11/24/2023] Open
Abstract
BACKGROUND Tracheostomy can be performed as an open surgical procedure, percutaneous, or hybrid and forms an important step in the management of patients infected with coronavirus disease 2019 (COVID-19) requiring weaning from mechanical ventilation. The purpose of this article is to share our experience to performing bedside surgical tracheostomy in COVID-19 patients in a safe and effective manner, whilst minimising the risk of viral transmission, to optimise patient outcomes and reduce risk to healthcare professionals. MATERIAL AND METHODS As recommended by ENT UK, we prospectively established a COVID Airway Team within the ENT department at Birmingham Heartlands Hospital, consisting of four head and neck consultant surgeons to perform either open-bedside, open-theatre or percutaneous tracheostomy in COVID-19 patients. A specific stepwise method for bedside open surgical tracheostomy was based on ENT UK and British Laryngological Society recommendations. RESULTS Thirty patients underwent tracheostomy during the study period (14 bedside-open, 5 open-theatre, 11 percutaneous). Mean duration of mechanical intubation prior to bedside-open tracheostomy was 14.5 days. The average time for open-bedside tracheostomy was 9 minutes compared to 31 minutes for open-theatre. There were no significant tracheostomy related complications with bedside-open tracheostomy. No healthcare professional involved reported acute COVID-19 infection. CONCLUSIONS We describe our effective, safe and swift approach to bedside open tracheostomy during the COVID-19 pandemic. Our experience demonstrated a short mean procedural time, with no tracheostomy-related complications and no reported viral transmission amongst the healthcare members involved.
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Affiliation(s)
- N-W Wahid
- Birmingham Heartlands Hospital B9 5SS, Bordesley Green East Birmingham, United Kingdom
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Mohamed H, Hkiri K, Botha N, Cloete K, Azizi S, Ahmed AAQ, Morad R, Motlamane T, Krief A, Gibaud A, Henini M, Chaker M, Ahmad I, Maaza M. Room temperature bio-engineered multifunctional carbonates for CO 2 sequestration and valorization. Sci Rep 2023; 13:16783. [PMID: 37798317 PMCID: PMC10556044 DOI: 10.1038/s41598-023-42905-5] [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: 03/21/2023] [Accepted: 09/15/2023] [Indexed: 10/07/2023] Open
Abstract
This contribution reports, for the first time, on an entirely green bio-engineering approach for the biosynthesis of single phase crystalline 1-D nano-scaled calcite CaCO3. This was validated using H2O as the universal solvent and natural extract of Hyphaene thebaica fruit as an effective chelating agent. In this room temperature green process, CaCl2 and CO2 are used as the unique source of Ca and CO3 respectively in view of forming nano-scaled CaCO3 with a significant shape anisotropy and an elevated surface to volume ratio. In terms of novelty, and relatively to the reported scientific and patented literature in relation to the fabrication of CaCO3 by green nano-chemistry, the current cost effective room temperature green process can be singled out as per the following specificities: only water as universal solvent is used, No additional base or acid chemicals for pH control, No additional catalyst, No critical or supercritical CO2 usage conditions, Only natural extract of thebaica as a green effective chelating agent through its phytochemicals and proper enzematic compounds, room Temperature processing, atmospheric pressure processing, Nanoscaled size particles, and Nanoparticles with a significant shape anisotropy (1-D like nanoparticles). Beyond and in addition to the validation of the 1-D synthesis aspect, the bio-engineered CaCO3 exhibited a wide-ranging functionalities in terms of highly reflecting pigment, an effective nanofertilizer as well as a potential binder in cement industry.
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Affiliation(s)
- H Mohamed
- UNESCO-UNISA Africa Chair in Nanosciences-Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, PO Box 392, Pretoria, South Africa
- Nanosciences African Network (NANOAFNET), Materials Research Department, iThemba LABS-National Research Foundation of South Africa, 1 Old Faure Road, Somerset West, PO Box 722, Cape Town, 7129, Western Cape, South Africa
- College of Graduate Studies, University of South Africa, PRETORIA, South Africa
| | - K Hkiri
- UNESCO-UNISA Africa Chair in Nanosciences-Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, PO Box 392, Pretoria, South Africa
- Nanosciences African Network (NANOAFNET), Materials Research Department, iThemba LABS-National Research Foundation of South Africa, 1 Old Faure Road, Somerset West, PO Box 722, Cape Town, 7129, Western Cape, South Africa
| | - N Botha
- UNESCO-UNISA Africa Chair in Nanosciences-Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, PO Box 392, Pretoria, South Africa
- Nanosciences African Network (NANOAFNET), Materials Research Department, iThemba LABS-National Research Foundation of South Africa, 1 Old Faure Road, Somerset West, PO Box 722, Cape Town, 7129, Western Cape, South Africa
| | - K Cloete
- UNESCO-UNISA Africa Chair in Nanosciences-Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, PO Box 392, Pretoria, South Africa
- Nanosciences African Network (NANOAFNET), Materials Research Department, iThemba LABS-National Research Foundation of South Africa, 1 Old Faure Road, Somerset West, PO Box 722, Cape Town, 7129, Western Cape, South Africa
| | - Sh Azizi
- UNESCO-UNISA Africa Chair in Nanosciences-Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, PO Box 392, Pretoria, South Africa
- Nanosciences African Network (NANOAFNET), Materials Research Department, iThemba LABS-National Research Foundation of South Africa, 1 Old Faure Road, Somerset West, PO Box 722, Cape Town, 7129, Western Cape, South Africa
| | - A A Q Ahmed
- UNESCO-UNISA Africa Chair in Nanosciences-Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, PO Box 392, Pretoria, South Africa
- Nanosciences African Network (NANOAFNET), Materials Research Department, iThemba LABS-National Research Foundation of South Africa, 1 Old Faure Road, Somerset West, PO Box 722, Cape Town, 7129, Western Cape, South Africa
| | - R Morad
- UNESCO-UNISA Africa Chair in Nanosciences-Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, PO Box 392, Pretoria, South Africa
- Nanosciences African Network (NANOAFNET), Materials Research Department, iThemba LABS-National Research Foundation of South Africa, 1 Old Faure Road, Somerset West, PO Box 722, Cape Town, 7129, Western Cape, South Africa
| | - Th Motlamane
- UNESCO-UNISA Africa Chair in Nanosciences-Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, PO Box 392, Pretoria, South Africa
- Nanosciences African Network (NANOAFNET), Materials Research Department, iThemba LABS-National Research Foundation of South Africa, 1 Old Faure Road, Somerset West, PO Box 722, Cape Town, 7129, Western Cape, South Africa
| | - A Krief
- UNESCO-UNISA Africa Chair in Nanosciences-Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, PO Box 392, Pretoria, South Africa
- Nanosciences African Network (NANOAFNET), Materials Research Department, iThemba LABS-National Research Foundation of South Africa, 1 Old Faure Road, Somerset West, PO Box 722, Cape Town, 7129, Western Cape, South Africa
- Chemistry Department (CMI Laboratory), University of Namur, 2 Rue Joseph Grafé, 5000, Namur, Belgium
| | - A Gibaud
- UNESCO-UNISA Africa Chair in Nanosciences-Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, PO Box 392, Pretoria, South Africa
- Nanosciences African Network (NANOAFNET), Materials Research Department, iThemba LABS-National Research Foundation of South Africa, 1 Old Faure Road, Somerset West, PO Box 722, Cape Town, 7129, Western Cape, South Africa
- IMMM, UMR 6283 CNRS, University of Le Maine, Bd O. Messiaen, 72085, Le Mans Cedex 09, France
| | - M Henini
- UNESCO-UNISA Africa Chair in Nanosciences-Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, PO Box 392, Pretoria, South Africa
- Nanosciences African Network (NANOAFNET), Materials Research Department, iThemba LABS-National Research Foundation of South Africa, 1 Old Faure Road, Somerset West, PO Box 722, Cape Town, 7129, Western Cape, South Africa
- Physics and Astronomy Department, Nottingham University, Nottingham, NG7 2RD7, UK
| | - M Chaker
- UNESCO-UNISA Africa Chair in Nanosciences-Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, PO Box 392, Pretoria, South Africa
- Nanosciences African Network (NANOAFNET), Materials Research Department, iThemba LABS-National Research Foundation of South Africa, 1 Old Faure Road, Somerset West, PO Box 722, Cape Town, 7129, Western Cape, South Africa
- INRS-Energie et Matériaux, 1650 Lionel-Boulet, Varennes, QC, J3X 1S2, Canada
| | - I Ahmad
- UNESCO-UNISA Africa Chair in Nanosciences-Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, PO Box 392, Pretoria, South Africa
- Nanosciences African Network (NANOAFNET), Materials Research Department, iThemba LABS-National Research Foundation of South Africa, 1 Old Faure Road, Somerset West, PO Box 722, Cape Town, 7129, Western Cape, South Africa
- Experimental Physics Directorate (EPD), National Center for Physics, Islamabad, 44000, Pakistan
| | - M Maaza
- UNESCO-UNISA Africa Chair in Nanosciences-Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, PO Box 392, Pretoria, South Africa.
- Nanosciences African Network (NANOAFNET), Materials Research Department, iThemba LABS-National Research Foundation of South Africa, 1 Old Faure Road, Somerset West, PO Box 722, Cape Town, 7129, Western Cape, South Africa.
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Crouwel F, Bayoumy AB, Mulder CJJ, Peters JHC, Boekema PJ, Derijks LJJ, de Boer SY, van de Meeberg PC, Ahmad I, Buiter HJC, de Boer NK. The Effectiveness and Safety of First-Line Thioguanine in Thiopurine-Naïve Inflammatory Bowel Disease Patients. Inflamm Bowel Dis 2023:izad197. [PMID: 37658804 DOI: 10.1093/ibd/izad197] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Indexed: 09/05/2023]
Abstract
BACKGROUND Currently thioguanine is solely used as treatment for inflammatory bowel disease after azathioprine and/or mercaptopurine failure. This study aimed to determine the safety, effectiveness, and 12-month drug survival of thioguanine in thiopurine-naïve patients with inflammatory bowel disease. METHODS A retrospective cohort study was performed in thiopurine-naïve patients with inflammatory bowel disease treated with thioguanine as first thiopurine derivate. Clinical effectiveness was defined as the continuation of thioguanine without the (re)initiation of concurrent biological therapy, systemic corticosteroids, or a surgical intervention. All adverse events were categorized by the Common Terminology Criteria for Adverse Events. RESULTS A total of 114 patients (male 39%, Crohn's disease 53%) were included with a median treatment duration of 25 months and a median thioguanine dosage of 20 mg/d. Clinical effectiveness at 12 months was observed in 53% of patients, and 78% of these responding patients remained responsive until the end of follow-up. During the entire follow-up period, 26 patients were primary nonresponders, 8 had a secondary loss of response, and 11 patients were unable to cease therapy with systemic corticosteroids within 6 months and were therefore classified as nonresponders. After 12 months, thioguanine was still used by 86% of patients. Fifty (44%) patients developed adverse events (grade 1 or 2) and 9 (8%) patients ceased therapy due to the occurrence of adverse events. An infection was documented in 3 patients, none of them requiring hospitalization and pancytopenia occurred in 2 other patients. No signs of nodular regenerative hyperplasia or portal hypertension were observed. CONCLUSIONS At 12 months, first-line thioguanine therapy was clinically effective in 53% of thiopurine-naïve inflammatory bowel disease patients with an acceptable safety profile.
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Affiliation(s)
- Femke Crouwel
- Department of Gastroenterology and Hepatology, Amsterdam Gastroenterology Endocrinology Metabolism Research Institute, Amsterdam University Medical Centre, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Ahmed B Bayoumy
- Department of Gastroenterology and Hepatology, Amsterdam Gastroenterology Endocrinology Metabolism Research Institute, Amsterdam University Medical Centre, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Chris J J Mulder
- Department of Gastroenterology and Hepatology, Amsterdam Gastroenterology Endocrinology Metabolism Research Institute, Amsterdam University Medical Centre, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Job H C Peters
- Department of Gastroenterology and Hepatology, Rode Kruis hospital, Beverwijk, the Netherlands
| | - Paul J Boekema
- Department of Gastroenterology and Hepatology, Máxima Medical Centre, Veldhoven, the Netherlands
| | - Luc J J Derijks
- Department of Clinical Pharmacy and Pharmacology, Máxima Medical Centre, Veldhoven, the Netherlands
| | - Sybrand Y de Boer
- Department of Gastroenterology and Hepatology, Slingeland Hospital, Doetinchem, the Netherlands
| | - Paul C van de Meeberg
- Department of Gastroenterology and Hepatology, Slingeland Hospital, Doetinchem, the Netherlands
| | - Ishfaq Ahmad
- Department of Gastroenterology and Hepatology, Streekziekenhuis Koningin Beatrix, Winterswijk, the Netherlands
| | - Hans J C Buiter
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Centre, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Nanne K de Boer
- Department of Gastroenterology and Hepatology, Amsterdam Gastroenterology Endocrinology Metabolism Research Institute, Amsterdam University Medical Centre, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
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10
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Bharal S, Rizvi MR, AlQahtani MM, Alajam RA, Sharma A, Ahmad I, Al-Otaibi ML, Alshehri MM, Ahmad MM, Shaphe MA, Ahmad I, Ahmad F, Miraj M, AlZhrani M, Alanazi AD, Shawky GM. Effectiveness of neck stabilization and Contrology training in comparison to conventional therapy amongst individuals with text neck syndrome. Eur Rev Med Pharmacol Sci 2023; 27:8340-8349. [PMID: 37782151 DOI: 10.26355/eurrev_202309_33756] [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] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
OBJECTIVE Cell phones are carried by 79% of people between 18 and 44 years of age for nearly the entire day. Smartphone users spend an average of three hours/per day on their devices, whereas heavy smartphone users spend 8-10 hours/per day on their devices. Text neck is a dangerous disorder that can accelerate the degeneration of the spine. This study aimed to investigate the efficacy of neck stabilization training vs. Contrology or Pilates training in individuals with Text Neck Syndrome. PATIENTS AND METHODS Participants (n=75) with a history of recurrent neck pain in the previous four months, having moderate pain (at least 4/10 on the numeric pain rating scale, NPRS), and constantly using mobile phones (>4 hours/day) were randomly allocated to one of three groups: a control group (neck isometric training) and two intervention groups (neck stabilization training and Contrology). They were assessed for craniovertebral angle (CVA), NPRS, and neck disability index (NDI) at baseline and at 4 weeks post-intervention. RESULTS There was a significant difference in the CVA, NPRS, and NDI among individuals with Text Neck Syndrome following intervention as compared to the control. Both the neck stabilization and Contrology training increased CVA and reduced neck pain and neck disability in individuals with Text Neck Syndrome. The two intervention groups showed similar effects in all the clinical outcome measures, suggesting almost equivalent effectiveness in the individuals with Text Neck Syndrome. CONCLUSIONS Neck stabilization seems to work better than Contrology training when it comes to increasing the craniovertebral angle, reducing pain intensity, and making it easier for individuals with Text Neck Syndrome to move their necks.
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Affiliation(s)
- S Bharal
- Department of Physiotherapy, Faculty of Allied Health Sciences, Manav Rachna International Institute and Studies (MRIIRS), Faridabad, India.
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11
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Ahmad I, Seno H. An epidemic dynamics model with limited isolation capacity. Theory Biosci 2023; 142:259-273. [PMID: 37462903 DOI: 10.1007/s12064-023-00399-9] [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: 11/27/2022] [Accepted: 07/03/2023] [Indexed: 08/13/2023]
Abstract
We consider a modified SIR model with a four-dimensional system of ordinary differential equations to consider the influence of a limited isolation capacity on the final epidemic size defined as the total number of individuals who experienced the disease at the end of an epidemic season. We derive the necessary and sufficient condition that the isolation reaches the capacity in a finite time on the way of the epidemic process, and show that the final epidemic size is monotonically decreasing in terms of the isolation capacity. We find further that the final epidemic size could have a discontinuous change at the critical value of isolation capacity below which the isolation reaches the capacity in a finite time. Our results imply that the breakdown of isolation with a limited capacity would cause a drastic increase of the epidemic size. Insufficient capacity of the isolation could lead to an unexpectedly severe epidemic situation, while such a severity would be avoidable with the sufficient isolation capacity.
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Affiliation(s)
- Ishfaq Ahmad
- Department of Computer and Mathematical Sciences, Graduate School of Information Sciences, Tohoku University, Aramaki-Aza-Aoba 6-3-09, Aoba-ku, Sendai, Miyagi, 980-8579, Japan.
| | - Hiromi Seno
- Department of Computer and Mathematical Sciences, Graduate School of Information Sciences, Tohoku University, Aramaki-Aza-Aoba 6-3-09, Aoba-ku, Sendai, Miyagi, 980-8579, Japan
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12
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Iliff HA, Ahmad I, Woodford C. Comment on 'Utilising 3D printing in assessment of anticipated difficult airways': a response. Anaesth Rep 2023; 11:e12257. [PMID: 37859759 PMCID: PMC10583144 DOI: 10.1002/anr3.12257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/08/2023] [Indexed: 10/21/2023] Open
Affiliation(s)
- H. A. Iliff
- Aneurin Bevan University Health BoardNewportUK
- Health Education and Improvement WalesCardiffUK
| | - I. Ahmad
- Guy's and St Thomas' NHS Foundation TrustLondonUK
- King's College LondonLondonUK
| | - C. Woodford
- Health Education and Improvement WalesCardiffUK
- Cardiff and Vale University Health BoardCardiffUK
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13
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Ahmad I, Ghafoor T, Ullah A, Naz S, Tahir M, Ahmed S, Arshad A, Ali A, Khattack TA, Batool F. Pediatric Acute Lymphoblastic Leukemia: Clinical Characteristics, Treatment Outcomes, and Prognostic Factors: 10 Years' Experience From a Low- and Middle-Income Country. JCO Glob Oncol 2023; 9:e2200288. [PMID: 37290024 PMCID: PMC10497281 DOI: 10.1200/go.22.00288] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 03/06/2023] [Accepted: 04/03/2023] [Indexed: 06/10/2023] Open
Abstract
PURPOSE Acute lymphoblastic leukemia (ALL) represents around 70% of pediatric leukemia. In high-income countries, the 5-year survival is above 90%, but survival in low- and middle-income countries is inferior. This study documents the treatment outcome and prognostic factors of pediatric ALL in Pakistan. MATERIALS AND METHODS In this prospective cohort study, all newly diagnosed patients with ALL/lymphoblastic lymphoma from age 1 to 16 years enrolled between January 1, 2012, and December 31, 2021, were included. The treatment was based on the standard arm of the UKALL2011 protocol. RESULTS Data from 945 patients with ALL, including 597 males (63.2%), were analyzed. The mean age at diagnosis was 5.73 ± 3.51 years. Pallor was the commonest presentation in 95.2% followed by fever in 84.2% of patients. The mean WBC count was 56.6 ± 103.4 × 109/L. Neutropenic fever followed by myopathy was the most common complication during induction. In univariate analysis, the high WBC count (P ≤ 0.001), intensive chemotherapy (P ≤ 0.001), malnutrition (P = .007), poor response to induction chemotherapy (P = .001), delayed presentation (P = .004), and use of steroids before chemotherapy (P = .023) significantly adversely affected overall survival (OS). The delayed presentation was the most significant prognostic factor in the multivariate analysis (P ≤ .002). After a median follow-up of 54.64 ± 33.80 months, the 5-year OS and disease-free survival (DFS) were 69.9% and 67.8%, respectively. CONCLUSION In this largest cohort of childhood ALL from Pakistan, a high WBC count, malnutrition, delayed presentation, previous steroids use, intensive chemotherapy, and poor response to the induction chemotherapy were associated with decreased OS and DFS rates.
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Affiliation(s)
- Ishfaq Ahmad
- Department of Paediatric Oncology, Combined Military Hospital, Rawalpindi, Pakistan
| | - Tariq Ghafoor
- Department of Paediatric Oncology, Combined Military Hospital, Rawalpindi, Pakistan
- Armed Forces Bone Marrow Transplant Centre, CMH Medical Complex, Rawalpindi, Pakistan
| | - Anwar Ullah
- Department of Paediatric Oncology, Combined Military Hospital, Rawalpindi, Pakistan
| | - Shaista Naz
- Department of Paediatric Oncology, Combined Military Hospital, Rawalpindi, Pakistan
| | - Muhammad Tahir
- Department of Paediatric Oncology, Combined Military Hospital, Rawalpindi, Pakistan
| | - Shakeel Ahmed
- Department of Paediatric Oncology, Combined Military Hospital, Rawalpindi, Pakistan
| | - Awais Arshad
- Department of Paediatric Oncology, Combined Military Hospital, Rawalpindi, Pakistan
| | - Asghar Ali
- Armed Forces Bone Marrow Transplant Centre, CMH Medical Complex, Rawalpindi, Pakistan
| | - Tariq Azam Khattack
- Armed Forces Bone Marrow Transplant Centre, CMH Medical Complex, Rawalpindi, Pakistan
| | - Fatima Batool
- Islamabad Medical and Dental College, Islamabad, Pakistan
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14
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Umesh P, Chufal K, Ahmad I, Bajpai R, Miller A, Chowdhary R, Sharief M, Dekker A, Wee L, Ansari A, Gairola M. 58P Treatment combinations in non-driver mutated mNSCLC: A systematic review and Bayesian network meta-analysis. J Thorac Oncol 2023. [DOI: 10.1016/s1556-0864(23)00312-x] [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: 04/03/2023]
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15
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Li F, Kweon DH, Han GF, Noh HJ, Che W, Ahmad I, Jeong HY, Fu Z, Lu Y, Baek JB. Merging Platinum Single Atoms to Achieve Ultrahigh Mass Activity and Low Hydrogen Production Cost. ACS Nano 2023; 17:2923-2931. [PMID: 36722955 DOI: 10.1021/acsnano.2c11338] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Single atom catalysts (SACs) with isolated active sites exhibit the highest reported mass activity for hydrogen evolution catalysis, which is crucial for practical applications. Here, we demonstrate that ultrahigh mass activity can also be achieved by rationally merging the isolated platinum (Pt) active sites in SAC. The catalyst was obtained by the thermodynamically driven diffusing and merging phosphorus-doped carbon (PC) supported Pt single atoms (Pt1@PC) into Pt nanoclusters (PtM@PC). X-ray absorption spectroscopy analysis revealed that the merged nanoclusters exhibit much stronger interactions with the support than the traditional method, enabling more efficient electron transfer. The optimized PtM@PC exhibited an order of magnitude higher mass activity (12.7 A mgPt-1) than Pt1@PC (0.9 A mgPt-1) at an overpotential of 10 mV in acidic media, which is the highest record to date, far exceeding reports for other outstanding SACs. Theoretical study revealed that the collective active sites in PtM@PC exhibit both favorable hydrogen binding energy and fast reaction kinetics, leading to the significantly enhanced mass activity. Despite its low Pt content (2.2 wt %), a low hydrogen production cost of ∼3 USD kg-1 was finally achieved in the full-water splitting at a laboratory scale.
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Affiliation(s)
- Feng Li
- Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, 220 Handan, Shanghai 200433, P.R. China
- School of Energy and Chemical Engineering/Center for Dimension-Controllable Organic Frameworks, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST, Ulsan 44919, South Korea
| | - Do Hyung Kweon
- School of Energy and Chemical Engineering/Center for Dimension-Controllable Organic Frameworks, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST, Ulsan 44919, South Korea
| | - Gao-Feng Han
- School of Energy and Chemical Engineering/Center for Dimension-Controllable Organic Frameworks, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST, Ulsan 44919, South Korea
| | - Hyuk-Jun Noh
- School of Energy and Chemical Engineering/Center for Dimension-Controllable Organic Frameworks, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST, Ulsan 44919, South Korea
| | - Wei Che
- School of Energy and Chemical Engineering/Center for Dimension-Controllable Organic Frameworks, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST, Ulsan 44919, South Korea
| | - Ishfaq Ahmad
- School of Energy and Chemical Engineering/Center for Dimension-Controllable Organic Frameworks, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST, Ulsan 44919, South Korea
| | - Hu Young Jeong
- UNIST Central Research Facilities, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST, Ulsan 44919, South Korea
| | - Zhengping Fu
- Anhui Laboratory of Advanced Photon Science and Technology, University of Science and Technology of China, 96 Jinzhai, Hefei, Anhui 230026, P.R. China
| | - Yalin Lu
- Anhui Laboratory of Advanced Photon Science and Technology, University of Science and Technology of China, 96 Jinzhai, Hefei, Anhui 230026, P.R. China
| | - Jong-Beom Baek
- School of Energy and Chemical Engineering/Center for Dimension-Controllable Organic Frameworks, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST, Ulsan 44919, South Korea
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16
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Mariappan P, Johnston A, Trail M, Hamid S, Hollins G, Dreyer B, Ramsey S, Padovani L, Guerrero Enriquez J, Simpson H, Hasan R, Sharpe C, Thomas B, Bhatt J, Ahmad I, Nandwani G, Chaudhry A, Boden A, Khan R, Maresca G, Dimitropoulos K, Graham C, Hendry D. Can repeat TURBT in patients presenting with High Grade Ta Urothelial Carcinoma be more nuanced? Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)00752-2] [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: 02/12/2023]
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17
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Chowdhary RL, Chufal KS, Pahuja AK, Ahmad I, Sharma M, Jwala M, Kumar L, Sharma A. An institutional review of treatment outcomes in extraosseous Ewing's sarcoma- the largest Asian experience. Cancer Radiother 2023; 27:50-56. [PMID: 35973914 DOI: 10.1016/j.canrad.2022.06.008] [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: 09/18/2021] [Revised: 05/07/2022] [Accepted: 06/01/2022] [Indexed: 02/06/2023]
Abstract
PURPOSE To analyze the treatment strategies, outcomes and factors impacting these outcomes in extraosseous ewings sarcoma (EOES). MATERIAL AND METHODS A search of the hospital database yielded a total of 109 EOES patients registered in last 10 years out of which 25 patients were excluded from analysis due to incomplete medical records. Demographic and clinical characteristics were reported using descriptive statistics. Overall survival (OS) was taken from the time of diagnosis to death. Patients who were alive or lost to follow up were censored from the survival analysis. A total of 12 clinical and treatment related variables were taken into univariate analysis and those showing significance or a trend towards significance were taken up for multivariate analysis. Further a cluster analysis was done in a quest to find a subgroup which would have a better survival outcome as compared to other clusters. SPSS version 23 was used for statistical analysis. RESULTS Chest wall (n=26), lower extremity (n=22) and paraspinal area (n=14) were the common sites involved. Localised swelling (n=43) was the most common presenting symptom and the median time to presentation was 2 months. Overall survival of the entire cohort at 5 years was 52 percent. Stage at presentation had a significant impact (P value<0.001) on estimated median OS (localised 70 months versus 36 months in metastatic stage). Cluster analysis showed that, patients with localised stage at presentation, good response to chemotherapy, negative resection margin and no adjuvant RT had a median survival of 69 months. CONCLUSION Judicious use of trimodality treatment in EOES yields optimal results and it also adds significantly onto the scarce literature on this subtype of sarcoma.
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Affiliation(s)
- R L Chowdhary
- Department of Radiation Oncology, Rajiv Gandhi Cancer Institute and Research Center, New Delhi, India.
| | - K S Chufal
- Department of Radiation Oncology, Rajiv Gandhi Cancer Institute and Research Center, New Delhi, India
| | - A K Pahuja
- Department of Radiation Oncology, Rajiv Gandhi Cancer Institute and Research Center, New Delhi, India
| | - I Ahmad
- Department of Radiation Oncology, Rajiv Gandhi Cancer Institute and Research Center, New Delhi, India
| | - M Sharma
- Department of Radiation Oncology, Rajiv Gandhi Cancer Institute and Research Center, New Delhi, India
| | - M Jwala
- Department of Radiation Oncology, Rajiv Gandhi Cancer Institute and Research Center, New Delhi, India
| | - L Kumar
- Department of Radiation Oncology, Rajiv Gandhi Cancer Institute and Research Center, New Delhi, India
| | - A Sharma
- Department of biostatistics, Rajiv Gandhi Cancer Institute and Research Center, New Delhi, India
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18
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Taggart R, Ahmad I. Is active surveillance a safe option when prostate biopsies have reported low-grade disease? Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)00338-x] [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: 02/12/2023]
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19
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Al-Baradie RS, Abdel-Hadi A, Ahmad F, Alsagaby SA, Slevin M, Alturaiki W, Madkhali Y, Aljarallah BM, Alqahtani M, Miraj M, Ahmad I, Albaradie N, Albaradie R. Author Correction: Association of monomeric C-Reactive Protein (m-CRP) with hypothalamic neurons after CRP hippo-campal administration in a model of dementia. Eur Rev Med Pharmacol Sci 2023; 27:443. [PMID: 36734699 DOI: 10.26355/eurrev_202301_31044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Correction to: European Review for Medical and Pharmacological Sciences 2022; 26 (22): 8713-8718. DOI: 10.26355/eurrev_202212_30543- PMID: 36524490-published online on December 15, 2022. After publication, the authors applied a correction to the funding statement: The authors extend their appreciation to the deputyship for Research & Innovation, Ministry of Education in Saudi Arabia for funding this research work through the project number (lFP-2020-36). There are amendments to this paper. The Publisher apologizes for any inconvenience this may cause. https://www.europeanreview.org/article/30543.
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Affiliation(s)
- R S Al-Baradie
- Department of Medical Laboratory Sciences, Department of Physical Therapy and Health Rehabilitation, College of Applied Medical Sciences, Majmaah University, Majmaah, Saudi Arabia
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20
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Iliff HA, Ahmad I, Evans S, Ingham J, Rees G, Woodford C. Utilising 3D printing in assessment of anticipated difficult airways. Anaesth Rep 2023; 11:e12232. [PMID: 37255967 PMCID: PMC10225466 DOI: 10.1002/anr3.12232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/02/2023] [Indexed: 06/01/2023] Open
Affiliation(s)
- H. A. Iliff
- Department of AnaesthesiaPrince Charles Hospital, Cwm Taf Morgannwg UHBWalesUK
| | - I. Ahmad
- Department of AnaesthesiaGuy's and St Thomas' NHS Foundation TrustLondonUK
- Kings CollegeLondonUK
| | - S. Evans
- Department of Maxillofacial and Dental SurgeryPrince Charles Hospital, Cwm Taf Morgannwg UHBWalesUK
| | - J. Ingham
- Department of Maxillofacial and Dental SurgeryPrince Charles Hospital, Cwm Taf Morgannwg UHBWalesUK
| | - G. Rees
- Department of AnaesthesiaPrince Charles Hospital, Cwm Taf Morgannwg UHBWalesUK
| | - C. Woodford
- Department of AnaesthesiaPrince Charles Hospital, Cwm Taf Morgannwg UHBWalesUK
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21
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Potter T, Cronin JN, Kua J, Nurmi E, Wong DJN, Ahmad I, Cook TM, El-Boghdadly K. Aerosol precautions and airway complications: a national prospective multicentre cohort study. Anaesthesia 2023; 78:23-35. [PMID: 36070622 PMCID: PMC10087829 DOI: 10.1111/anae.15851] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/26/2022] [Indexed: 12/13/2022]
Abstract
The perceived risk of transmission of aerosolised viral particles from patients to airway practitioners during the COVID-19 pandemic led to the widespread use of aerosol precautions, including personal protective equipment and modifications to anaesthetic technique. The risk of these aerosol precautions on peri-operative airway complications has not been assessed outside of simulation studies. This prospective, national, multicentre cohort study aimed to quantify this risk. Adult patients undergoing general anaesthesia for elective or emergency procedures over a 96-hour period were included. Data collected included use of aerosol precautions by the airway practitioner, airway complications and potential confounding variables. Mixed-effects logistic regression was used to assess the risk of individual aerosol precautions on overall and specific airway complications. Data from 5905 patients from 70 hospital sites were included. The rate of airway complications was 10.0% (95%CI 9.2-10.8%). Use of filtering facepiece class 2 or class 3 respirators was associated with an increased risk of airway complications (odds ratio 1.38, 95%CI 1.04-1.83), predominantly due to an association with difficult facemask ventilation (odds ratio 1.68, 95%CI 1.09-2.61) and desaturation on pulse oximetry (odds ratio 2.39, 95%CI 1.26-4.54). Use of goggles, powered air-purifying respirators, long-sleeved gowns, double gloves and videolaryngoscopy were not associated with any alteration in the risk of airway complications. Overall, the use of filtering facepiece class 2 or class 3 respirators was associated with an increased risk of airway complications, but most aerosol precautions used during the COVID-19 pandemic were not.
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Affiliation(s)
- T Potter
- Department of Anaesthesia and Peri-operative Medicine, Guy's and St. Thomas' NHS Foundation Trust, London, UK
| | - J N Cronin
- Department of Anaesthesia and Peri-operative Medicine, Guy's and St. Thomas' NHS Foundation Trust, London, UK
| | - J Kua
- Surgical Outcomes Research Centre, University College London, UK
| | - E Nurmi
- Department of Anaesthesia and Peri-operative Medicine, Guy's and St. Thomas' NHS Foundation Trust, London, UK
| | - D J N Wong
- Department of Anaesthesia and Peri-operative Medicine, Guy's and St. Thomas' NHS Foundation Trust, London, UK
| | - I Ahmad
- Department of Anaesthesia and Peri-operative Medicine, Guy's and St. Thomas' NHS Foundation Trust, London, UK.,King's College London, UK
| | - T M Cook
- Department of Anaesthesia, Royal United Hospitals Bath NHS Foundation Trust, Bath, UK.,School of Medicine, University of Bristol, UK
| | - K El-Boghdadly
- Department of Anaesthesia and Peri-operative Medicine, Guy's and St. Thomas' NHS Foundation Trust, London, UK.,King's College London, UK
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22
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Crouwel F, Simsek M, de Boer MA, Mulder CJJ, van Andel EM, Creemers RH, van Asseldonk DP, van Bodegraven AA, Horjus CS, Visschedijk MC, Weusthuis ALM, Seinen ML, Jharap B, van Schaik FDM, Ahmad I, Boekema PJ, Tack GJ, Wormmeester L, Lutgens MWMD, van Boeckel PGA, Gilissen LPL, Kerkhof M, Russel MGVM, Hoentjen F, Bartelink ME, Kuijvenhoven JP, Maljaars JWJ, van Dop WA, Wonders J, van der Voorn MMPJA, Buiter HJC, de Boer NK. Exposure to thioguanine during 117 pregnancies in women with inflammatory bowel disease. J Crohns Colitis 2022; 17:738-745. [PMID: 36521000 PMCID: PMC10155742 DOI: 10.1093/ecco-jcc/jjac183] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Indexed: 02/08/2023]
Abstract
BACKGROUND Safety of thioguanine in pregnant patients with inflammatory bowel disease (IBD) is sparsely recorded. This study was aimed to document the safety of thioguanine during pregnancy and in birth. METHODS In this multicenter case series, IBD patients treated with thioguanine during pregnancy were included. Data regarding disease and medication history, pregnancy course, obstetric complications and neonatal outcomes were collected. RESULTS Data on 117 thioguanine-exposed pregnancies in 99 women were collected. Most (78%) had Crohn's disease and the mean age at delivery was 31 years. In eighteen pregnancies (15%) IBD flared. Obstetric and infectious complications were seen in 15% (n=17) and 7% (n=8) of pregnancies, respectively. Ten pregnancies (8.5%) resulted in a first trimester miscarriage and one in a stillbirth at 22 weeks gestational age. Congenital abnormalities were observed in one induced abortion (trisomy 21) and in one of the live-born children (cleft palate) . In total 109 neonates were born from 101 singleton pregnancies and 4 twin pregnancies. In the singleton pregnancies, ten children were born prematurely and ten were born small for gestational age. Screening for myelosuppresion was performed in sixteen neonates (14.7%); two had anemia in umbilical cord blood. All outcomes were comparable to either the general Dutch population or to data from 3 Dutch cohort studies on the use of conventional thiopurines in pregnant IBD patients. CONCLUSION In this large case series the use of thioguanine during pregnancy is not associated in excess with adverse maternal or neonatal outcomes.
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Affiliation(s)
- Femke Crouwel
- Corresponding author: Femke Crouwel, MD, De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands; Tel: +31204440799; Fax: +31204440554;
| | - Melek Simsek
- Department of Gastroenterology and Hepatology, Amsterdam Gastroenterology Endocrinology Metabolism Research Institute, Amsterdam University Medical Centre, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Marjon A de Boer
- Department of Obstetrics and Gyneacology, Amsterdam Reproduction & Development Research Institute, Amsterdam University Medical Centre, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Chris J J Mulder
- Department of Gastroenterology and Hepatology, Amsterdam Gastroenterology Endocrinology Metabolism Research Institute, Amsterdam University Medical Centre, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Emma M van Andel
- Department of Gastroenterology and Hepatology, Noordwest Ziekenhuisgroep, Alkmaar, The Netherlands
| | - Rob H Creemers
- Department of Gastroenterology, Geriatrics, Internal and Intensive Care Medicine [Co-MIK], Zuyderland Medical Centre, Heerlen-Sittard-Geleen, The Netherlands
| | - Dirk P van Asseldonk
- Department of Gastroenterology and Hepatology, Noordwest Ziekenhuisgroep, Alkmaar, The Netherlands
| | - Ad A van Bodegraven
- Department of Gastroenterology and Hepatology, Amsterdam Gastroenterology Endocrinology Metabolism Research Institute, Amsterdam University Medical Centre, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Department of Gastroenterology, Geriatrics, Internal and Intensive Care Medicine [Co-MIK], Zuyderland Medical Centre, Heerlen-Sittard-Geleen, The Netherlands
| | - Carmen S Horjus
- Department of Gastroenterology and Hepatology, Rijnstate Hospital, Arnhem, The Netherlands
| | - Marijn C Visschedijk
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | | | - Margien L Seinen
- Department of Gastroenterology and Hepatology, Onze Lieve Vrouwe Gasthuis, Amsterdam, The Netherlands
| | - Bindia Jharap
- Department of Gastroenterology and Hepatology, Meander Medical Centre, Amersfoort, The Netherlands
| | - Fiona D M van Schaik
- Department of Gastroenterology and Hepatology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Ishfaq Ahmad
- Department of Gastroenterology and Hepatology, Streekziekenhuis Koningin Beatrix, Winterswijk, The Netherlands
| | - Paul J Boekema
- Department of Gastroenterology and Hepatology, Máxima Medical Centre, Veldhoven, The Netherlands
| | - Greetje J Tack
- Department of Gastroenterology and Hepatology, Medical Centre Leeuwarden, Leeuwarden, The Netherlands
| | - Louktje Wormmeester
- Department of Gastroenterology and Hepatology, Treant Zorggroep, Emmen-Hoogeveen-Stadskanaal, The Netherlands
| | - Maurice W M D Lutgens
- Department of Gastroenterology and Hepatology, Elisabeth-TweeSteden Hospital, Tilburg, The Netherlands
| | - Petra G A van Boeckel
- Department of Gastroenterology and Hepatology, Sint Antonius Hospital, Nieuwegein, The Netherlands
| | - Lennard P L Gilissen
- Department of Gastroenterology and Hepatology, Catharina Hospital, Eindhoven, The Netherlands
| | - Marjon Kerkhof
- Department of Gastroenterology and Hepatology, Groene Hart Hospital, Gouda, The Netherlands
| | - Maurice G V M Russel
- Department of Gastroenterology and Hepatology, Medical Spectrum Twente, Enschede, The Netherlands
| | - Frank Hoentjen
- Department of Gastroenterology, Radboud University Medical Center, Nijmegen, The Netherlands
- Division of Gastroenterology, Department of Medicine, University of Alberta, Edmonton, AB, Canada
| | - Maartje E Bartelink
- Department of Gastroenterology and Hepatology, Deventer Hospital, Deventer, The Netherlands
| | - Johan P Kuijvenhoven
- Department of Gastroenterology and Hepatology, Spaarne Gasthuis, Haarlem and Hoofddorp, The Netherlands
| | - Jeroen W J Maljaars
- Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, The Netherlands
| | - Willemijn A van Dop
- Department of Gastroenterology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Janneke Wonders
- Department of Gastroenterology and Hepatology, HagaZiekenhuis, Den Haag, The Netherlands
| | | | - Hans J C Buiter
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Centre, Amsterdam, The Netherlands
| | - Nanne K de Boer
- Department of Gastroenterology and Hepatology, Amsterdam Gastroenterology Endocrinology Metabolism Research Institute, Amsterdam University Medical Centre, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
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Shahzad U, Ahmad I, Al-Noor NH, Iftikhar S, Abd Ellah AH, Benedict TJ. Särndal Approach and Separate Type Quantile Robust Regression Type Mean Estimators for Nonsensitive and Sensitive Variables in Stratified Random Sampling. Journal of Mathematics 2022; 2022:1-14. [DOI: 10.1155/2022/1430488] [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] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
Surprising perceptions may happen in survey sampling. The arithmetic mean estimator is touchy to extremely enormous or potentially small observations, whenever selected in a sample. It can give one-sided (biased) results and eventually, enticed to erase from the selected sample. These extremely enormous or potentially small observations, whenever known, can be held in the sample and utilized as supplementary information to expand the exactness of estimates. Also, a supplementary variable is consistently a well-spring of progress in the exactness of estimates. A suitable conversion/transformation can be utilized for getting much more precise estimates. In the current study, regarding population mean, we proposed a robust class of separate type quantile regression estimators under stratified random sampling design. The proposed class is based on extremely enormous or potentially small observations and robust regression tools, under the framework of Särndal. The class is at first defined for the situation when the nature of the study variable is nonsensitive, implying that it bargains with subjects that do not create humiliation when respondents are straightforwardly interrogated regarding them. Further, the class is stretched out to the situation when the study variable has a sensitive nature or theme. Sensitive and stigmatizing themes are hard to explore by utilizing standard information assortment procedures since respondents are commonly hesitant to discharge data concerning their own circle. The issues of a population related to these themes (for example homeless and nonregular workers, heavy drinkers, assault and rape unfortunate casualties, and drug users) contain estimation errors ascribable to nonresponses as well as untruthful revealing. These issues might be diminished by upgrading respondent participation by scrambled response devices/techniques that cover the genuine value of the sensitive variable. Thus, three techniques (namely additive, mixed, and Bar-Lev) are incorporated for the purposes of the article. The productivity of the proposed class is also assessed in light of real-life dataset. Lastly, a simulation study is also done to determine the performance of estimators.
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Affiliation(s)
- Usman Shahzad
- Department of Mathematics and Statistics, International Islamic University, Islamabad, Pakistan
- Department of Mathematics and Statistics, PMAS-Arid Agriculture University, Rawalpindi, Pakistan
| | - Ishfaq Ahmad
- Department of Mathematics and Statistics, International Islamic University, Islamabad, Pakistan
| | - Nadia H. Al-Noor
- Department of Mathematics, College of Science, Mustansiriyah University, Baghdad, Iraq
| | - Soofia Iftikhar
- Department of Statistics, Shaheed Benazir Bhutto Women University, Peshawar, KP, Pakistan
| | - A. H. Abd Ellah
- Department of Mathematics, College of Science, Al-Baha University, Al-Baha, Saudi Arabia
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Al-Baradie RS, Abdel-Hadi A, Ahmad F, Alsagaby SA, Slevin M, Alturaiki W, Madkhali Y, Aljarallah BM, Alqahtani M, Miraj M, Ahmad I, Albaradie N, Albaradie R. Association of monomeric C-Reactive Protein (m-CRP) with hypothalamic neurons after CRP hippo-campal administration in a model of dementia. Eur Rev Med Pharmacol Sci 2022; 26:8713-8718. [PMID: 36524490 DOI: 10.26355/eurrev_202212_30543] [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] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
OBJECTIVE The ensuing ischemia due to the disruption of blood supply to the brain is one of the most common causes of stroke. Evidence suggests a clear association of the ischemic injury with vascular dementia and Alzheimer's disease (AD). In response to the brain ischemia, a cascade reaction starts leading to neuronal damage due to oxidative stress and other inflammatory mediators. A pilot study was done, which showed that following stroke, monomeric-C-reactive protein (mCRP) is expressed in large quantities around the infarcted zone and this CRP is able to induce neurodegeneration and inflammation potentially perpetuating dementia. MATERIALS AND METHODS We examined both patient brain samples and excised mouse brain tissue, previously injected with 1.75 mg/mL mCRP into the CA1 area of the hippocampus through the stereotactic surgical procedures and followed them over a period of over 6 months. The distribution of mCRP was examined through immunohistochemistry (mouse anti-human mCRP-specific antibodies 8C10). RESULTS We observed a novel finding: those micro vessels close to the injection location were strongly stained with mCRP only in the mice that had been injected with mCRP, indicating that this small blood vessel can spread it throughout the brain. CONCLUSIONS mCRP found in the brain after a hemorrhagic stroke promotes damage over a large area via the induction of inflammation and degeneration of perivascular compartments.
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Affiliation(s)
- R S Al-Baradie
- Department of Medical Laboratory Sciences, Department of Physical Therapy and Health Rehabilitation, College of Applied Medical Sciences, Majmaah University, Majmaah, Saudi Arabia.
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25
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Ahmad I, Wong DJN. Recognising oesophageal intubation. Anaesthesia 2022; 77:1321-1325. [DOI: 10.1111/anae.15894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/03/2022] [Indexed: 11/06/2022]
Affiliation(s)
- I. Ahmad
- Department of Anaesthesia and Peri‐operative Medicine Guy's and St Thomas' NHS Foundation Trust London UK
- King's College London UK
| | - D. J. N. Wong
- Department of Anaesthesia and Peri‐operative Medicine Guy's and St Thomas' NHS Foundation Trust London UK
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Shahzad U, Ahmad I, Almanjahie IM, Al-Omari AI. Three-fold utilization of supplementary information for mean estimation under median ranked set sampling scheme. PLoS One 2022; 17:e0276514. [PMID: 36279286 PMCID: PMC9591070 DOI: 10.1371/journal.pone.0276514] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 10/08/2022] [Indexed: 11/17/2022] Open
Abstract
Ranked set sampling (RSS) has created a broad interest among researchers and it is still a unique research topic. It has at long last begun to find its way into practical applications beyond its initial horticultural based birth in the fundamental paper by McIntyre in the nineteenth century. One of the extensions of RSS is median ranked set sampling (MRSS). MRSS is a sampling procedure normally utilized when measuring the variable of interest is troublesome or expensive, whereas it might be easy to rank the units using an inexpensive sorting criterion. Several researchers introduced ratio, regression, exponential, and difference type estimators for mean estimation under the MRSS design. In this paper, we propose three new mean estimators under the MRSS scheme. Our idea is based on three-fold utilization of supplementary information. Specifically, we utilize the ranks and second raw moments of the supplementary information and the original values of the supplementary variable. The appropriateness of the proposed group of estimators is demonstrated in light of both real and artificial data sets based on the Monte-Carlo simulation. Additionally, the performance comparison is also conducted regarding the reviewed families of estimators. The results are empowered and the predominant execution of the proposed group of estimators is seen throughout the paper.
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Affiliation(s)
- Usman Shahzad
- Department of Mathematics and Statistics, International Islamic University, Islamabad, Pakistan
- Department of Mathematics and Statistics - PMAS-Arid Agriculture University, Rawalpindi, Pakistan
- * E-mail:
| | - Ishfaq Ahmad
- Department of Mathematics and Statistics, International Islamic University, Islamabad, Pakistan
| | - Ibrahim Mufrah Almanjahie
- Department of Mathematics, College of Science, King Khalid University, Abha, Saudi Arabia
- Statistical Research and Studies Support Unit, King Khalid University, Abha, Saudi Arabia
| | - Amer Ibrahim Al-Omari
- Department of Mathematics, Faculty of Science, Al al-Bayt University, Mafraq, Jordan
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Tibbo A, Hartley A, Hartley A, Mui E, Leung H, Ahmad I. MBTPS2 acts as a regulator of lipogenesis and cholesterol synthesis through SREBP signalling in prostate cancer. EUR UROL SUPPL 2022. [DOI: 10.1016/s2666-1683(22)01962-0] [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: 11/07/2022] Open
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Hartley A, Shaw R, Galbraith L, Tibbo A, Blyth K, Leung H, Ahmad I. Loss of ARID1A drives aggressive prostate cancer through aberrant cell cycle signalling. EUR UROL SUPPL 2022. [DOI: 10.1016/s2666-1683(22)01925-5] [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: 11/05/2022] Open
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29
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Khan I, Ullah S, Khattak SK, Khan Z, Ahmad I, Khan A. Functional Outcome of Arthroscopic Anterior Cruciate Ligament Reconstruction Using Hamstring Autograft with Fixation Using Endobutton at Femoral End and Bioabsorbable Screw at Tibial End. Mymensingh Med J 2022; 31:1142-1147. [PMID: 36189564] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Anterior cruciate ligament (ACL) is the most frequently injured ligament of the knee. It can be repaired and reconstructed by open and endoscopic method, the gold standard is, however, endoscopic reconstruction. It is usually reconstructed using bone patellar tendon bone (BPTB) or Hamstring autograft. The graft is supported using endobutton at the femoral end while bioabsorbable interference screw at the tibial end. This study aimed to determine how a certain fixation procedure for quadrupled hamstring autografts worked out. This prospective observational study duration period was 1 year in which 40 patients with ACL injury were treated with arthroscopic reconstruction using hamstring autograft from January 2020 to December 2020 with 6 months follow up after surgery. On the femoral side, an endobutton was used to secure the graft, while the tibial end was secured using a bioabsorbable screw. The International Knee Documentation Committee (IKDC) scoring system was used for prospective evaluation. According to subjective IKDC scoring, 20(50.0%) results were very good, 14(35.0%) were good, 4(10.0%) were satisfactory and 2(5.0%) were bad. In 95.0% patients the state of knee joint is very good compared to preoperative state. Of all the 40 patients underwent ACL reconstruction, 38(95.0%) patients are satisfied with the results of the operation.
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Affiliation(s)
- I Khan
- Dr Imran Khan, Resident Orthopaedic Surgeon, Orthopaedics and Spine Unit, Hayatabad Medical Complex, Peshawar, Pakistan
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Chiradoni Thungappa S, Taran R, Singh J, Shrivastav S, Vithalani N, Mukherjee K, Nagarkar R, Maksud T, Mehta A, Srinivasan K, Vikranth M, Sonawane S, Ahmad A, Sheikh S, Ali S, Paithankar M, Rajani A, Bunger D, Khan M, Ahmad I. 246P Nanosomal paclitaxel lipid suspension demonstrates better tumor response and safety versus conventional paclitaxel in patients with metastatic breast cancer. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.285] [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: 11/25/2022] Open
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31
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Sajayan A, Nair A, McNarry AF, Mir F, Ahmad I, El‐Boghdadly K. Analysis of a national difficult airway database. Anaesthesia 2022; 77:1081-1088. [DOI: 10.1111/anae.15820] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/07/2022] [Indexed: 12/30/2022]
Affiliation(s)
- A. Sajayan
- Department of Anaesthesia University Hospitals Birmingham NHS Foundation Trust Birmingham UK
| | - A. Nair
- Department of Anaesthesia University Hospitals Birmingham NHS Foundation Trust Birmingham UK
| | - A. F. McNarry
- Department of Anaesthesia Western General and St John's Hospitals Edinburgh UK
| | - F. Mir
- Department of Anaesthesia St Georges University Hospitals NHS Foundation Trust London UK
| | - I. Ahmad
- Department of Anaesthesia and Peri‐operative Medicine Guy's and St. Thomas' NHS Foundation Trust London UK
- King's College London London UK
| | - K. El‐Boghdadly
- Department of Anaesthesia and Peri‐operative Medicine Guy's and St. Thomas' NHS Foundation Trust London UK
- King's College London London UK
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32
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Ahmad I, Lashari M. Effect of season and housing system on hematochemical attributes in rabbits of Southern Punjab, Pakistan. ARQ BRAS MED VET ZOO 2022. [DOI: 10.1590/1678-4162-12654] [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: 11/22/2022] Open
Abstract
ABSTRACT The present study was conducted to investigate the effect of season and housing system on hematochemical attributes of rabbits in Southern Punjab, Pakistan. Adult healthy rabbits (n=30) were divided into two groups of equal size (n=15). Group I was housed in a modern cage system and group II in traditional colony system for a period of one year. Blood samples of rabbits from both groups were collected in the summer and the winter seasons and analyzed for various hematochemical attributes. Hematochemical attributes including red blood cell (RBC) count, hematocrit (HCT), mean corpuscular volume (MCV), total white blood cell (WBC) count, mixed cells (MID), granulocytes (GRA), glucose and alanine aminotransferase (ALT) were lowered significantly (P<0.05) in the summer in relation to the winter, while mean corpuscular hemoglobin (MCH), mean corpuscular hemoglobin concentration (MCHC), creatinine, and cholesterol level were significantly (P<0.05) higher during the summer season. Biochemical attributes as cholesterol, triglycerides and globulin were significantly (P<0.05) lower in the caged rabbits. In conclusion, the summer season caused a significant decrease in most of the hematochemical attributes whereas housing system did not affect most of the hematochemical attributes of the rabbits under the climatic conditions of Southern Punjab, Pakistan.
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Affiliation(s)
- I. Ahmad
- The Islamia University Bahawalpur, Pakistan
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33
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Affiliation(s)
- H. A. Iliff
- Welsh School of AnaesthesiaHealth Education and Improvement WalesNantgarwUK
- Department of AnaesthesiaPrince Charles HospitalCwm Taf Morgannwg UHBWalesUK
| | - T. Lawson
- Department of AnaesthesiaSwansea Bay University Health BoardSwanseaUK
| | - I. Ahmad
- Department of AnaesthesiaGuy's and St Thomas' NHS Foundation TrustLondonUK
- King's College LondonLondonUK
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34
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Amjed N, Naz A, Wajid A, Aslam M, Ahmad I. Nuclear model analysis and optimization of production data of the medically interesting 66,67,68 Ga via alpha induced reactions on 63,65 Cu targets. Appl Radiat Isot 2022; 188:110379. [DOI: 10.1016/j.apradiso.2022.110379] [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] [Received: 02/18/2022] [Revised: 06/21/2022] [Accepted: 07/07/2022] [Indexed: 11/29/2022]
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35
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Iliff HA, Ahmad I, Evans S, Ingham J, Rees G, Woodford C. Using virtual reality for difficult airway management planning. Anaesth Rep 2022; 10:e12175. [DOI: 10.1002/anr3.12175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/09/2022] [Indexed: 11/11/2022] Open
Affiliation(s)
- H. A. Iliff
- Department of Anaesthesia Prince Charles Hospital, Cwm Taf Morgannwg UHB Wales UK
- Welsh School of Anaesthesia Health Education and Improvement Wales UK
| | - I. Ahmad
- Department of Anaesthesia Guy's and St Thomas' NHS Foundation Trust London UK
- Kings College London London UK
| | - S. Evans
- Department of Oral and Maxillofacial Surgery Cwm Taf Morgannwg UHB Wales UK
| | - J. Ingham
- Department of Oral and Maxillofacial Surgery Cwm Taf Morgannwg UHB Wales UK
| | - G. Rees
- Department of Anaesthesia Cwm Taf Morgannwg UHB Wales UK
| | - C. Woodford
- Department of Anaesthesia Prince Charles Hospital, Cwm Taf Morgannwg UHB Wales UK
- Welsh School of Anaesthesia Health Education and Improvement Wales UK
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36
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Ahmad I, Shukrullah S, Naz M, Ahmad M, Ahmed E, Liu Y, Hussain A, Iqbal S, Ullah S. Recent advances and challenges in 2D/2D heterojunction photocatalysts for solar fuels applications. Adv Colloid Interface Sci 2022; 304:102661. [PMID: 35462267 DOI: 10.1016/j.cis.2022.102661] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 03/26/2022] [Accepted: 04/01/2022] [Indexed: 12/29/2022]
Abstract
Although photocatalytic technology has emerged as an effective means of alleviating the projected future fuel crisis by converting sunlight directly into chemical energy, no visible-light-driven, low-cost, and highly stable photocatalyst has been developed to date. Due to considerably higher interfacial contact with numerous reactive sites, effective charge transmission and separation ability, and strong redox potentials, the focus has now shifted to 2D/2D heterojunction systems, which have exhibited effective photocatalytic performance. The fundamentals of 2D/2D photocatalysis for different applications and the classification of 2D/2D materials are first explained in this paper, followed by strategies to improve the photocatalytic performance of various 2D/2D heterojunction systems. Following that, current breakthroughs in 2D/2D metal-based and metal-free heterojunction photocatalysts, as well as their applications for H2 evolution via water splitting, CO2 reduction, and N2 fixation, are discussed. Finally, a brief overview of current constraints and predicted results for 2D/2D heterojunction systems is also presented. This paper lays out a strategy for developing efficient 2D/2D heterojunction photocatalysts and sophisticated technology for solar fuel applications in order to address the energy issue.
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37
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Mukhtar Alam M, Ahmad I, Samad A, Hasan Khan M, Ali A. Grip Strength and Endurance: Influences of Anthropometric Characteristics, Posture, and Gender. Muscles Ligaments Tendons J 2022. [DOI: 10.32098/mltj.02.2022.14] [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: 11/05/2022]
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38
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ul Haq E, Ahmad I, Hussain A, Almanjahie IM. Mixture distribution based real-coded crossover: A hybrid probabilistic approach for global optimization. IFS 2022. [DOI: 10.3233/jifs-210886] [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: 11/15/2022]
Abstract
In the present simulation-based study, a novel parent-centric real-coded crossover operator is introduced with a unique probabilistic aspect of the mixture distribution. Moreover, the mixture distribution is a co-integration of double Pareto and Laplace probability distributions with various parameters. The key objective of the newly proposed methodology is to obtained optimal solutions for complex multimodal optimization problems. Hence, for its global comparison, the newly proposed mixture distribution crossover operator (MDX) is compared with double Pareto (DPX), Laplace (LX), and simulated binary (SBX) crossover operators within the conjunction of three mutation operators (MTPM, PM, and NUM). After a descriptive comparison, a Quade multiple comparison test is also administered to examine its statistical significance. Furthermore, the performance of the genetic algorithm (GA) is also examined on a set of twenty-one unconstraint benchmark functions with diverse features. The empirical results of the simulation-based study reveal that the mixture-based crossover operator obtained a substantial dominance over all considered crossover operators in terms of computational complexity, robustness, scalability, and capability of exploration and exploitation. Moreover, the Quade multiple comparison test also showed a significant superiority with graphical authentication of the performance index (PI).
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Affiliation(s)
- Ehtasham ul Haq
- Department of Mathematics and Statistics, International Islamic University, Islamabad, Pakistan
| | - Ishfaq Ahmad
- Department of Mathematics and Statistics, International Islamic University, Islamabad, Pakistan
| | - Abid Hussain
- Department of Statistics, Faculty of Natural Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Ibrahim M. Almanjahie
- Department of Mathematics, College of Science, King Khalid University, Abha, Kingdom of Saudi Arabia
- Statistical Research and Study Support Unit, King Khalid University, Abha, Kingdom of Saudi Arabia
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Sezen SM, Ahmad I, Habib-Ur-Rahman M, Amiri E, Tekin S, Oz KC, Maambo CM. Growth and productivity assessments of peanut under different irrigation water management practices using CSM-CROPGRO-Peanut model in Eastern Mediterranean of Turkey. Environ Sci Pollut Res Int 2022; 29:26936-26949. [PMID: 34862582 PMCID: PMC8989867 DOI: 10.1007/s11356-021-17722-w] [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] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 11/19/2021] [Indexed: 05/27/2023]
Abstract
Irrigation water scheduling is crucial to make the most efficient use of ever-decreasing water. As excessive irrigation decreases yield, while imprecise application also causes various environmental issues. Therefore, efficient management of irrigation frequency and irrigation level is necessary to sustain productivity under limited water conditions. The objective of the current study is to assess the water productivity at various irrigation regimes during peanut crop growing seasons (2014 and 2015) in Eastern Mediterranean, Turkey. The field experiments were conducted with treatments consisting of three irrigation frequencies (IF) (IF1: 25 mm; IF2: 50 mm; and IF3: 75 mm of cumulative pan evaporation (CPE)), and four irrigation water levels (WL1 = 0.50, WL2 = 0.75, WL3 = 1.0, and WL4 = 1.25). WL1, WL2, WL3, and WL4 treatments received 50, 75, 100, and 125 of cumulative pan evaporation. The CSM-CROPGRO-Peanut model was calibrated with experimental data in 2014 and evaluated with second-year experimental data (2015). The model simulated seed yield and final biomass (dry matter) reasonably well with low normalized root mean square error (RMSEn) in various irrigation intervals. The model simulated reasonably well for days to anthesis (RMSE = 2.53, d-stat = 0.96, and r2 = 0.90), days to physiological maturity (RMSE = 2.55), seed yield (RMSE = 1504), and tops biomass dry weight at maturity (RMSE = 3716). Simulation results indicated good agreement between measured and simulated soil water content (SWC) with low RMSEn values (4.0 to 16.8% in 2014 and 4.3 to 18.2% in 2015). Further results showed that IF2I125 irrigation regime produced the highest seed yield. Generally, model evaluation performed reasonably well for all studied parameters with both years' experimental data. Results also showed that the crop model would be a precision agriculture tool for the extrapolation of the allocation of irrigation water resources and decision management under current and future climate.
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Affiliation(s)
- Semih Metin Sezen
- Department of Irrigation and Agricultural Structures, Faculty of Agriculture, Cukurova University, 01330, Adana, Turkey.
| | - Ishfaq Ahmad
- Resilient Agriculture Department, Asian Disaster Preparedness Center (ADPC), Bangladesh, Pakistan
| | - Muhammad Habib-Ur-Rahman
- Institute of Crop Science and Resource Conservation (INRES), Crop Science Group, Rheinische Friedrich-Wilhelms-Universität Bonn, Katzenburgweg 5, 53115, Bonn, Germany.
- MNS-University of Agriculture, Multan, Pakistan.
| | - Ebrahim Amiri
- Water Engineering Department, Islamic Azad University, Lahijan, Iran
| | - Servet Tekin
- Department of Biosystems Engineering, Faculty of Agriculture, Kahramanmaras University, 46100, Kahramanmaras, Turkey
| | - Kadir Can Oz
- Department of Irrigation and Agricultural Structures, Faculty of Agriculture, Cukurova University, 01330, Adana, Turkey
| | - Clever Mwika Maambo
- Department of Irrigation and Agricultural Structures, Faculty of Agriculture, Cukurova University, 01330, Adana, Turkey
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Girase R, Ahmad I, Pawara R, Patel H. Optimizing cardio, hepato and phospholipidosis toxicity of the Bedaquiline by chemoinformatics and molecular modelling approach. SAR QSAR Environ Res 2022; 33:215-235. [PMID: 35225110 DOI: 10.1080/1062936x.2022.2041724] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [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: 12/25/2021] [Accepted: 02/03/2022] [Indexed: 06/14/2023]
Abstract
The FDA granted expedited approval for Johnson and Johnson's Bedaquiline to treat pulmonary multidrug resistant tuberculosis on 28 December 2012 which is more common in China, Russian Federation and India. Bedaquiline is the first anti-tubercular drug approved by the FDA in the last 40 years, and it has become a cynosure in the circles of synthetic chemists researching new anti-tubercular drugs. Bedaquiline's highly lipophilic nature raises major concerns like suppression of the hERG gene, hepatotoxicity, and phospholipidosis despite its potential antitubercular profile. To address these toxicity concerns, in the present work, we have employed the structural optimization of Bedaquiline using the ADMETopt web server, which optimizes lead with scaffold hopping and ADMET screening. The ADMETopt web server yielded the 476 structures through optimization of three sites in Bedaquiline. Further, we have validated the optimized structures for their activity by performing molecular docking and molecular dynamics (MD) simulations against the mycobacterial ATP synthase enzyme and density functional theory (DFT) study further provides insight into the reactivity of the compounds. After screening and analysis, compound #449 was observed to be the most promising mycobacterial ATP synthase inhibitor with minimal cardiotoxicity, hepatotoxicity and phospholipidosis.
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Affiliation(s)
- R Girase
- Division of Computer Aided Drug Design, Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur Maharashtra, India
| | - I Ahmad
- Division of Computer Aided Drug Design, Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur Maharashtra, India
| | - R Pawara
- Division of Computer Aided Drug Design, Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur Maharashtra, India
| | - H Patel
- Division of Computer Aided Drug Design, Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur Maharashtra, India
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Mariappan P, Johnston A, Trail M, Hamid S, Hollins G, Dreyer B, Ramsey S, Padovani L, Garau R, Guerrero Enriquez J, Simpson H, Hasan R, Sharpe C, Thomas B, Bhatt J, Ahmad I, Nandwani G, Chaudhry A, Boden A, Khan R, Maresca G, Dimitropoulos K, Graham C, Hendry D. Multicentre real world long-term outcomes in 2773 primary Non-Muscle Invasive Bladder Cancer (NMIBC) patients managed within the Scottish Bladder Cancer Quality Performance Indicator programme. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)00243-3] [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: 11/24/2022]
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Mariappan P, Johnston A, Trail M, Hamid S, Hollins G, Dreyer B, Ramsey S, Padovani L, Garau R, Guerrero Enriquez J, Simpson H, Hasan R, Sharpe C, Thomas B, Bhatt J, Ahmad I, Nandwani G, Chaudhry A, Boden A, Khan R, Maresca G, Dimitropoulos K, Graham C, Hendry D, Paramananthan S, Loy G, Baker S, Grigor K, Smith G. Ceasing surveillance in low risk non-muscle invasive bladder cancer after only 12 months of being recurrence free is un-safe: A validation study from the Scottish bladder cancer Quality Performance Indicator (QPI) programme. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)00244-5] [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: 11/16/2022]
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Chakraborty C, Khan MK, Ahmad I. Call for Special Issue Papers: Big Data-Driven Futuristic Fabric System in Societal Digital Transformation. Big Data 2022; 10:81-82. [PMID: 35148168 DOI: 10.1089/big.2021.29045.cfp4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- Chinmay Chakraborty
- Department of Electronics and Communication Engineering, Birla Institute of Technology, Mesra, India
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Abstract
In many real-world problems, one may encounter uncertainty in the input data. The fuzzy set theory fits well to handle such situations. However, it is not always possible to determine with full satisfaction the membership and non-membership degrees associated with an element of the fuzzy set. The intuitionistic fuzzy sets play a key role in dealing with the hesitation factor along-with the uncertainty involved in the problem and hence, provides more flexibility in the decision-making process. In this article, we introduce a new ordering on the set of intuitionistic fuzzy numbers and propose a simple approach for solving the fully intuitionistic fuzzy linear programming problems with mixed constraints and unrestricted variables where the parameters and decision variables of the problem are represented by intuitionistic fuzzy numbers. The proposed method converts the problem into a crisp non-linear programming problem and further finds the intuitionistic fuzzy optimal solution to the problem. Some of the key significance of the proposed study are also pointed out along-with the limitations of the existing studies. The approach is illustrated step-by-step with the help of a numerical example and further, a production planning problem is also demonstrated to show the applicability of the study in practical situations. Finally, the efficiency of the proposed algorithm is analyzed with the existing studies based on various computational parameters.
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Affiliation(s)
- Manisha Malik
- Department of Mathematics, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, India
| | - S. K. Gupta
- Department of Mathematics, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, India
| | - I. Ahmad
- Department of Mathematics and Statistics, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia
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Abstract
Apart from being experimentally and theoretically interesting, tetraphenylene has potential applications in different fields, including supramolecular chemistry, material science, and asymmetric catalysis. Although a wide range of substituted tetraphenylenes have been reported, octaamine-based tetraphenylene derivatives have not been reported because of their instability. Here, stable octaaminotetraphenylene octahydrochloride is synthesized from the bromination of tetraphenylene to octabromotetraphenylene, which is subsequently aminated into octaiminotetraphenylene. Finally, the imino derivative is deprotected to yield octaaminotetraphenylene octahydrochloride.
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Affiliation(s)
- Ishfaq Ahmad
- School of Energy and Chemical Engineering, Center for Dimension-Controllable Organic Frameworks, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST, Ulsan 44919, Republic of Korea
| | - Dongwook Kim
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Rukhillo Kodirov
- School of Energy and Chemical Engineering, Center for Dimension-Controllable Organic Frameworks, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST, Ulsan 44919, Republic of Korea
| | - Soo-Young Yu
- School of Energy and Chemical Engineering, Center for Dimension-Controllable Organic Frameworks, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST, Ulsan 44919, Republic of Korea
| | - Jeong-Min Seo
- School of Energy and Chemical Engineering, Center for Dimension-Controllable Organic Frameworks, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST, Ulsan 44919, Republic of Korea
| | - Javeed Mahmood
- School of Energy and Chemical Engineering, Center for Dimension-Controllable Organic Frameworks, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST, Ulsan 44919, Republic of Korea
| | - Jong-Beom Baek
- School of Energy and Chemical Engineering, Center for Dimension-Controllable Organic Frameworks, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST, Ulsan 44919, Republic of Korea
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Nawaz MF, Fatima R, Gul S, Rana N, Ahmad I, Naseer J, Afzal S, Yasin G, Asif M, Khan SH, Altaf M. Study of human knowledge and attitude toward urban birds in Faisalabad city, Pakistan. BRAZ J BIOL 2021; 83:e249229. [PMID: 34669801 DOI: 10.1590/1519-6984.249229] [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: 02/28/2021] [Accepted: 05/11/2021] [Indexed: 11/22/2022] Open
Abstract
Birds are very valuable indicators of species richness and endemic patterns in a specified ecosystem, which eventually help the scientist to measure the environmental degradation. The aim of present study was to know human knowledge and attitude toward urban birds in Faisalabad city, Pakistan. The study conducted in four consecutive months: November 2019 to February 2020. Population of birds was noted from eight residential towns of Faisalabad city, data were collected through questionnaire. Faisalabad has a reasonably large population of birds and present data show that, there is a significant difference between favorite bird of residential areas and institutions. The pigeon received the most likeness in bird population among residential area residents, while the myna received the least. The most popular bird in Faisalabad institutions was the sparrow, while the least popular bird was the common myna. Bird adaptation percentage of residential areas and institutional areas of Faisalabad was the highest for parrot and sparrow respectively. People in residential areas and institutions, on the other hand, adapted least to common myna. It is concluded that people of the study area like birds and offered food and high population of birds are present in study area.
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Affiliation(s)
- M F Nawaz
- University of Agriculture, Department of Forestry and Range Management, Faisalabad, Pakistan
| | - R Fatima
- University of Agriculture, Department of Zoology, Wildlife and Fisheries, Faisalabad, Pakistan
| | - S Gul
- University of Karachi, Department of Botany, Karachi, Pakistan
| | - N Rana
- University of Agriculture, Department of Zoology, Wildlife and Fisheries, Faisalabad, Pakistan
| | - I Ahmad
- University of Agriculture, Department of Forestry and Range Management, Faisalabad, Pakistan
| | - J Naseer
- The Islamia University of Bahawalpur, Department of Forestry, Range and Wildlife Management, Bahawalpur, Pakistan
| | - S Afzal
- University of Sargodha, Department of Forestry, Range Management and Wildlife, Sargodha, Pakistan
| | - G Yasin
- The Islamia University of Bahawalpur, Department of Forestry, Range and Wildlife Management, Bahawalpur, Pakistan
| | - M Asif
- University of Agriculture, Department of Forestry and Range Management, Faisalabad, Pakistan
| | - S H Khan
- University of Agriculture, Department of Forestry and Range Management, Faisalabad, Pakistan
| | - M Altaf
- The Islamia University of Bahawalpur, Department of Forestry, Range and Wildlife Management, Bahawalpur, Pakistan
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Naz M, Irfan M, Shukrullah S, Ahmad I, Ghaffar A, Niazi UM, Rahman S, Jalalah M, Alsaiari M, Khan M. Effect of microwave plasma treatment on magnetic and photocatalytic response of manganese ferrite nanoparticles for wastewater treatment. MGC 2021. [DOI: 10.3233/mgc-210065] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The conventionally synthesized nano-ferrite materials do not possess bulk properties, generally required for their use in mainstream industry. To make ferrite nanoparticles clinically applicable materials, it is important to have good control over morphology and optical properties of these materials. In this study, low-pressure microwave plasma was used to tailor the structural properties and surface chemistry of manganese ferrite nanoparticles. A facile sol-gel method was used to prepare cubic spinal structures of manganese ferrite nanoparticles. These nanoparticles were exposed to oxygen plasma sustained with a microwave source for improving their magnetic and photocatalytic activities. The techniques like XRD, SEM, PL, UV-Vis DRS, transient photocurrent response and EIS were used to characterize the samples. The plasma treated nanoparticles were used to degraded methyl blue (MB) dye in the solution. The photocatalytic activity showed 85% degradation of MB after 100 min of exposure of visible light. The second part of the paper studied the magnetic properties of the nanoparticles. The saturation magnetization decreased from 0.78 emu/g to 0.68 emu/g after plasma treatment of nanoparticles.
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Affiliation(s)
- M.Y. Naz
- Department of Physics, University of Agriculture, Faisalabad, Pakistan
| | - M. Irfan
- Electrical Engineering Department, College of Engineering, Najran University Saudi Arabia, Najran, Saudi Arabia
| | - S. Shukrullah
- Department of Physics, University of Agriculture, Faisalabad, Pakistan
| | - I. Ahmad
- Department of Physics, University of Agriculture, Faisalabad, Pakistan
| | - A. Ghaffar
- Department of Physics, University of Agriculture, Faisalabad, Pakistan
| | - U. M. Niazi
- Mechanical Engineering Department, National University of Technology, Pakistan
| | - S. Rahman
- Electrical Engineering Department, College of Engineering, Najran University Saudi Arabia, Najran, Saudi Arabia
| | - M. Jalalah
- Electrical Engineering Department, College of Engineering, Najran University Saudi Arabia, Najran, Saudi Arabia
- Promising Centre For Sensors and Electronic Devices (PCSED), Najran University Saudi Arabia, Najran, Saudi Arabia
| | - M.A. Alsaiari
- Empty quarter research unit, Chemistry department, college of Science and art at Sharurah, Najran University Saudi Arabia, Najran, Saudi Arabia
| | - M.K.A. Khan
- Mechanical Engineering Department, College of Engineering, Najran University Saudi Arabia, Najran, Saudi Arabia
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Chakraborty C, Khan MK, Ahmad I. Call for Special Issue Papers: Big Data-Driven Futuristic Fabric System in Societal Digital Transformation. Big Data 2021; 9:402-403. [PMID: 34665005 DOI: 10.1089/big.2021.29045.cfp3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Affiliation(s)
- Chinmay Chakraborty
- Department of Electronics and Communication Engineering, Birla Institute of Technology, Mesra, India
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50
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Iliff HA, El-Boghdadly K, Ahmad I, Davis J, Harris A, Khan S, Lan-Pak-Kee V, O'Connor J, Powell L, Rees G, Tatla TS. Management of haematoma after thyroid surgery: systematic review and multidisciplinary consensus guidelines from the Difficult Airway Society, the British Association of Endocrine and Thyroid Surgeons and the British Association of Otorhinolaryngology, Head and Neck Surgery. Anaesthesia 2021; 77:82-95. [PMID: 34545943 PMCID: PMC9291554 DOI: 10.1111/anae.15585] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [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] [Accepted: 08/22/2021] [Indexed: 12/16/2022]
Abstract
Haematoma after thyroid surgery can lead to airway obstruction and death. We therefore developed guidelines to improve the safety of peri‐operative care of patients undergoing thyroid surgery. We conducted a systematic review to inform recommendations, with expert consensus used in the absence of high‐quality evidence, and a Delphi study was used to ratify recommendations. We highlight the importance of multidisciplinary team management and make recommendations in key areas including: monitoring; recognition; post‐thyroid surgery emergency box; management of suspected haematoma following thyroid surgery; cognitive aids; post‐haematoma evacuation care; day‐case thyroid surgery; training; consent and pre‐operative communication; postoperative communication; and institutional policies. The guidelines support a multidisciplinary approach to the management of suspected haematoma following thyroid surgery through oxygenation and evaluation; haematoma evacuation; and tracheal intubation. They have been produced with materials to support implementation. While these guidelines are specific to thyroid surgery, the principles may apply to other forms of neck surgery. These guidelines and recommendations provided are the first in this area and it is hoped they will support multidisciplinary team working, improving care and outcomes for patients having thyroid surgery.
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Affiliation(s)
- H A Iliff
- Department of Anaesthesia, Cwm Taf Morgannwg University Health Board, Merthyr, UK.,Health Education and Improvement Wales, Cardiff, UK
| | - K El-Boghdadly
- Department of Anaesthesia and Peri-operative Medicine, Guy's and St Thomas' NHS Foundation Trust, London, UK.,King's College London, London, UK
| | - I Ahmad
- Department of Anaesthesia and Peri-operative Medicine, Guy's and St Thomas' NHS Foundation Trust, London, UK.,King's College London, London, UK
| | - J Davis
- Department of Otolaryngology Head and Neck Surgery, Medway NHS Foundation Trust, Gillingham, UK
| | - A Harris
- Patient Representative, London, UK
| | - S Khan
- Department of Endocrine Surgery, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - V Lan-Pak-Kee
- Department of Anaesthesia, Barts Health NHS Trust, London, UK
| | - J O'Connor
- Department of Otolaryngology Head and Neck Surgery, London North West University Healthcare NHS Trust, London, UK
| | - L Powell
- Department of Anaesthesia, Cwm Taf Morgannwg University Health Board, Merthyr, UK.,Health Education and Improvement Wales, Cardiff, UK
| | - G Rees
- Department of Anaesthesia, Cwm Taf Morgannwg University Health Board, Merthyr, UK
| | - T S Tatla
- Department of Otolaryngology Head and Neck Surgery, London North West University Healthcare NHS Trust, London, UK
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