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Gupta S, Sikka N, Kamboj M, Hooda A, Devi A, Narwal A. Dental professional's perspective regarding knowledge, awareness, and attitude towards the importance of charting dental anomalies: a cross-sectional study. J Forensic Odontostomatol 2023; 41:52-61. [PMID: 38183972 PMCID: PMC10859071] [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] [Subscribe] [Scholar Register] [Indexed: 01/08/2024]
Abstract
OBJECTIVES The presence of dental anomalies could play a significant role in the identification of individuals by comparing antemortem and postmortem data. This cross-sectional study aimed to assess the level of knowledge, attitude, and awareness among dental professionals regarding the importance of charting dental anomalies and maintaining dental records. METHODOLOGY A self-structured questionnaire was e-mailed to dental professionals practicing in India. The responses were recorded, data tabulated, and one-way ANOVA and post hoc tests were applied for analysis. The criterion for significance was p < .05. RESULTS A total of 406 dental professionals responded to the survey. A significant difference was observed in the mean attitude score of participants towards the importance of charting dental anomalies and maintaining dental records with regard to place of work (p=.001), gender (p=.044) and educational qualification (p=.039). In addition, a statistically significant difference was observed in the mean awareness score of participants with respect to place of work (p=.033) and gender (p=.001). The major barriers in maintaining dental records were lack of time, adequate knowledge, infrastructure, and financial constraints. CONCLUSION 81.3% and 69.26% study participants had very good awareness and attitude, whereas 71.2% had good knowledge regarding the importance of charting dental anomalies and maintenance of dental records; however, their inaccurate responses in anomaly identification hinted towards the need for proper dental charting and their maintenance to be taught en masse and made part of the BDS curriculum.
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Affiliation(s)
- S Gupta
- Department of Or Anstomy Fas Graduato institute of Cantal Sciencos Rehtak, Haryana, India
| | - N Sikka
- Department of Dental Materials, Post Graduate Institute of Dental Sciences, Rohtak, Haryana, India
| | - M Kamboj
- Department of Oral Pathology, Post Graduate Institute of Dental Sciences, Rohtak, Haryana, India
| | - A Hooda
- Department of Oral Anatomy, Post Graduate Institute of Dental Sciences, Rohtak, Haryana, India
| | - A Devi
- Department of Oral Pathology, Post Graduate Institute of Dental Sciences, Rohtak, Haryana, India
| | - A Narwal
- Department of Oral Pathology, Post Graduate Institute of Dental Sciences, Rohtak, Haryana, India
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Gupta S, Devi A, Kamboj M, Hooda A, Narwal AJ. Knowledge, awareness and attitude of dental professionals regarding child maltreatment. J Forensic Odontostomatol 2023; 41:10-20. [PMID: 37634172 PMCID: PMC10473458] [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] [Subscribe] [Scholar Register] [Indexed: 08/29/2023]
Abstract
BACKGROUND Dental professionals could play a significant role in identifying, documenting and reporting child maltreatment to appropriate authorities as children are exposed to various maltreatments that can present in the head and neck region. AIM The aim of this paper is to assess the level of knowledge, awareness and attitude among dental professionals regarding child maltreatment and to identify the barriers that prevent reporting suspected maltreatment. METHODOLOGY The present cross-sectional questionnaire-based study was conducted on dental professionals practising in India by emailing a self-structured questionnaire to assess knowledge, awareness and attitude regarding child maltreatment. RESULTS 422 dental professionals participated in the survey of which 270 were females. A significant difference was observed in mean knowledge (p=.015), awareness (p=.014) score of the participants with regard to place of work and mean knowledge score (p=.024) of the participants with regard to educational qualification. 300 participants reported that lack of adequate knowledge and awareness about the role of dental professionals regarding child maltreatment is one of the major barriers that prevent reporting child maltreatment. CONCLUSION Findings of the study showed that 43.8% of participants had good knowledge and 44.8% were fairly aware regarding child maltreatment. 86.7% of participants showed a very good attitude towards learning more about the role of dental professionals in the management of child maltreatment.
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Affiliation(s)
- S Gupta
- Dept. of Oral Anatomy, Post Graduate Institute of Dental Sciences, Rohtak, Haryana, India
| | - A Devi
- Dept. of Oral Pathology, Post Graduate Institute of Dental Sciences, Rohtak, Haryana, India
| | - M Kamboj
- Dept. of Oral Pathology, Post Graduate Institute of Dental Sciences, Rohtak, Haryana, India
| | - A Hooda
- Dept. of Oral Anatomy, Post Graduate Institute of Dental Sciences, Rohtak, Haryana, India
| | - A J Narwal
- Dept. of Oral Pathology, Post Graduate Institute of Dental Sciences, Rohtak, Haryana, India
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Malik S, Kamboj M, Narwal A, Devi A. Immunohistochemical evaluation of cyclooxygenase-2 and mast cell density in periapical lesions. Int Endod J 2023. [PMID: 37171246 DOI: 10.1111/iej.13931] [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: 12/24/2022] [Revised: 05/09/2023] [Accepted: 05/10/2023] [Indexed: 05/13/2023]
Abstract
AIM Periapical granuloma (PG) and cyst (PC) are formed as a protective response consequent to pulpal infection leaching through the apical foramen and lateral canals. Various inflammatory mediators like mast cells and cyclooxygenase (COX)-2 are involved in this intricate process. This pilot study aimed to evaluate and compare the immunoexpression of tryptase and COX-2 in periapical granuloma and periapical cyst, and also correlate them with intensity of inflammatory infiltrate and thickness of cystic epithelial lining. METHODOLOGY An observational and cross-sectional study was conducted on paraffin-embedded tissue sections of 50 PGs and 50 PCs submitted for morphological and immunohistochemical analysis using anti-tryptase and anti-COX-2 antibodies. The mean number of mast cells (total, granulated & degranulated), mean COX-2 expression and inflammatory score was calculated. The data obtained were analyzed using Mann Whitney U, Student's T, Chi-square and Spearman correlation test (P < 0.05). RESULTS The inflammatory score, total mast cells and COX-2 expression were similar in PGs and PCs (P= 0.352, 0.339 and 0.352) however, the degranulated mast cells were highly significant in PC while granulated mast cells were highly significant in PG respectively (P<0.001 in both). Although a non-significant correlation existed between COX-2 and total mast cells in both groups but, total mast cells were significantly correlated with epithelial thickness in PC (P= 0.029). CONCLUSIONS Mast cells and cyclooxygenase-2 proved to be independent inflammatory markers in periapical lesions. Further studies should be planned on mast cell and COX-2 inhibitors as treatment modalities of periapical lesions.
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Affiliation(s)
- S Malik
- Department of Oral and Maxillofacial Pathology and Microbiology, Post Graduate Institute of Dental Sciences, Pt B.D. Sharma University of Health Sciences, Rohtak, (Haryana), India
| | - M Kamboj
- Department of Oral and Maxillofacial Pathology and Microbiology, Post Graduate Institute of Dental Sciences, Pt B.D. Sharma University of Health Sciences, Rohtak, (Haryana), India
| | - A Narwal
- Department of Oral and Maxillofacial Pathology and Microbiology, Post Graduate Institute of Dental Sciences, Pt B.D. Sharma University of Health Sciences, Rohtak, (Haryana), India
| | - A Devi
- Department of Oral and Maxillofacial Pathology and Microbiology, Post Graduate Institute of Dental Sciences, Pt B.D. Sharma University of Health Sciences, Rohtak, (Haryana), India
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Keerthika R, Narwal A, Kamboj M, Devi A, Anand R, N S, Singh V, Agarwal V, Gupta A. Mucormycosis infection associated with global COVID-19 pandemic - an institutional histopathological study. Med Oral Patol Oral Cir Bucal 2023; 28:e99-e107. [PMID: 36806020 PMCID: PMC9985935 DOI: 10.4317/medoral.25130] [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: 09/29/2021] [Accepted: 02/10/2023] [Indexed: 02/20/2023] Open
Abstract
BACKGROUND Coronavirus disease 2019 (COVID-19) in the recent times have instilled signs of immunosuppression globally which has further precipitated increasing range of opportunistic infections. Mucormycosis is a distressing opportunistic fungal infection with a high incidence and is the third commonest acute invasive infection following candidiasis and aspergillosis. The aim of the present observational study is to delineate the enigmatic histopathological profile between mucormycosis cases seen prior to pandemic (PPM) and pandemic associated mucormycosis (PAM). MATERIAL AND METHODS Tissue archives of 105 histopathologically diagnosed cases of mucormycosis were included and analysed for demographical details and histopathological parameters like fungal load and localization, granuloma formation, necrosis, inflammatory infiltrate and tissue invasion. RESULTS 0ut of 105 included cases, 11/105 (10.48%) were reported PPM and 94/105 (89.52%) PAM. Among 94 cases of PAM, 51/94 (54%) cases also showed COVID-19 positivity, while 43/94 (46%) did not. Of all the histological variables, increased fungal load and necrosis were observed in PAM relative to PPM cases. CONCLUSIONS The histopathological variables like fungal load, necrosis, granuloma formation and tissue invasion, could help the clinician in assessing the clinical status at the time of tissue diagnosis and improve the treatment accordingly.
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Affiliation(s)
- R Keerthika
- Department of Oral and Maxillofacial Pathology and Microbiology Pt. Bhagwat Dayal Sharma University of Health Sciences Post Graduate Institute of Dental Sciences (PGIDS) Rohtak, Haryana-124001, India
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Devi A, Kavya G. Dysgraphia disorder forecasting and classification technique using intelligent deep learning approaches. Prog Neuropsychopharmacol Biol Psychiatry 2023; 120:110647. [PMID: 36181958 DOI: 10.1016/j.pnpbp.2022.110647] [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: 07/22/2022] [Revised: 08/22/2022] [Accepted: 09/24/2022] [Indexed: 11/28/2022]
Abstract
Writing abilities are impacted by dysgraphia, a condition of learning disability. It might be challenging to diagnose dysgraphia at an initial point of a child's upbringing. Problematic abilities linked to Dysgraphia difficulties that is utilized in detecting the learning disorder. The features used in this research to identify dysgraphia include handwriting and geometric features that is reclaimed using kekre-discrete cosine mathematical model. The feature learning step of deep transfer learning makes good use of the obtained features to identify dysgraphia. The results of the data collection indicate that this study can use handwritten images to detect children who have dysgraphia. Compared to past investigations, this experiment has shown a significant improvement in the capacity to identify dysgraphia using handwritten drawings. The proposed approach is compared with the machine learning and deep learning approaches where the Kekre-Discrete Cosine Transform with Deep Transfer Learning (K-DCT-DTL) outperforms the existing approaches. The proposed K-DCT-DTL approach attains 99.75% of highest accuracy that exhibits the efficiency of the proposed method.
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Affiliation(s)
- A Devi
- Research Scholar, Anna University, India; IFET College of Engineering, Villupuram, India.
| | - G Kavya
- SA Engineering College, Chennai, India
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Neubieser RM, Wree JL, Jagosz J, Becher M, Ostendorf A, Devi A, Bock C, Michel M, Grabmaier A. Low-temperature ALD process development of 200 mm wafer-scale MoS2 for gas sensing application. Micro and Nano Engineering 2022. [DOI: 10.1016/j.mne.2022.100126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Ahmed I, Krishnamurthy S, Bhise R, Sagar R, Balaji B, Devi A, Banu V. PO-1091 GTV as prognostic marker in head and neck cancer - Time to redefine GTV beyond contouring. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)03055-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Rajagopal M, Senthilnathan R, Shetty S, Devi A, Ravishankar Ram M, Samiappan S, Jayaraj R. Conceptual interpretation and clinical applicability of a systematic review and meta-analysis about prognostic value of apolipoproteins in COVID-19 patients. Travel Med Infect Dis 2022; 46:102248. [PMID: 34990864 PMCID: PMC8722642 DOI: 10.1016/j.tmaid.2021.102248] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 12/02/2021] [Accepted: 12/21/2021] [Indexed: 11/30/2022]
Affiliation(s)
- Mogana Rajagopal
- Faculty of Pharmaceutical Sciences, UCSI University Kuala Lumpur (South Wing), Malaysia
| | - Raghul Senthilnathan
- School of Biosciences and Technology, Vellore Institute of Technology (VIT), Vellore, Tamil Nadu, India
| | - Sameep Shetty
- Department of Oral and Maxillofacial Surgery, Manipal College of Dental Sciences, Mangalore, India
| | - A Devi
- School of Bioengineering, Kattankulathur Campus, SRM Institute of Science and Technology, Chennai, Tamil Nadu, India
| | - M Ravishankar Ram
- Faculty of Pharmaceutical Sciences, UCSI University Kuala Lumpur (South Wing), Malaysia
| | - Suja Samiappan
- Department of Biochemistry, Bharathiar University, Coimbatore, India
| | - Rama Jayaraj
- Northern Territory Institute of Research and Training, Darwin, Northern Territory, 0909, Australia.
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Dileep Kumar G, Siva B, Bharathi K, Devi A, Pavan Kumar P, Anusha K, Lambhate S, Karunakar T, Kumar Tiwari A, Suresh Babu K. Synthesis and biological evaluation of Schizandrin derivatives as tubulin polymerization inhibitors. Bioorg Med Chem Lett 2020; 30:127354. [PMID: 32631552 DOI: 10.1016/j.bmcl.2020.127354] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 06/10/2020] [Accepted: 06/12/2020] [Indexed: 01/11/2023]
Abstract
A series of oxime ester-derivatives were prepared by utilizing the schizandrin (1), a major compound isolated from Schisandra grandiflora, which is deployed in different traditional system of medicine. The in vitro antiproliferative activities of the synthesized compounds were assessed against a selected panel of human cancer cell lines (A549, RKO P3, DU145 and Hela) and normal cell (HEK293). Several of these derivatives were found more potent in comparison to parent compound, schizandrin (1). Particularly, 4a and 4b demonstrated potent activity against DU-145 and RKOP3 cell lines with IC50 values of 3.42 µM and 3.35 µM respectively. To characterize the molecular mechanisms involved in antitumoral activity, these two compounds, 4a and 4b were selected for further studies. Cell cycle analysis revealed that both the compounds were able to induce apoptosis and cell cycle arrest at G0/G1 phase. To know the extent of apoptosis in DU145 and RKOP3 cell lines, Annexin V-FITC were performed. Moreover, the tubulin polymerization assay indicated that 4a and 4b exhibits potent inhibitory effect on the tubulin assembly. Molecular docking studies and competitive binding assay also indicated that 4a and 4b effectively bind at the colchicine binding site of the tubulin.
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Affiliation(s)
- G Dileep Kumar
- Centre for Natural Products & Traditional Knowledge, CSIR - Indian Institute of Chemical Technology, Hyderabad 500007, India; Academi of Scientific and Innovative Research-Postal staff college Area, Sector 19, Kamla Nehru Nagar, Ghaziabad, Utter Pradesh 201002, India
| | - B Siva
- Centre for Natural Products & Traditional Knowledge, CSIR - Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - K Bharathi
- Centre for Natural Products & Traditional Knowledge, CSIR - Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - A Devi
- Centre for Natural Products & Traditional Knowledge, CSIR - Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - P Pavan Kumar
- Centre for Natural Products & Traditional Knowledge, CSIR - Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - K Anusha
- Centre for Natural Products & Traditional Knowledge, CSIR - Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Surbhi Lambhate
- Department of Applied Biology, CSIR - Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - T Karunakar
- Qstatix Private Limited, Hyderabad 500035, India
| | - Ashok Kumar Tiwari
- Centre for Natural Products & Traditional Knowledge, CSIR - Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - K Suresh Babu
- Centre for Natural Products & Traditional Knowledge, CSIR - Indian Institute of Chemical Technology, Hyderabad 500007, India.
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10
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Devi A, Diarra SS, Mael SH. Haematology, Carcass and Fatty Acid Composition of Finishing Broilers Fed Enzyme Supplemented Expeller Copra Meal in Corn-Animal Protein Diets. Braz J Poult Sci 2020. [DOI: 10.1590/1806-9061-2019-1126] [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: 11/22/2022]
Affiliation(s)
- A Devi
- University of the South Pacific, Samoa
| | - SS Diarra
- University of the South Pacific, Samoa
| | - SH Mael
- University of the South Pacific, Samoa
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11
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Dinsdale RJ, Hazeldine J, Al Tarrah K, Hampson P, Devi A, Ermogenous C, Bamford AL, Bishop J, Watts S, Kirkman E, Dalle Lucca JJ, Midwinter M, Woolley T, Foster M, Lord JM, Moiemen N, Harrison P. Dysregulation of the actin scavenging system and inhibition of DNase activity following severe thermal injury. Br J Surg 2019; 107:391-401. [PMID: 31502663 PMCID: PMC7079039 DOI: 10.1002/bjs.11310] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 05/21/2019] [Accepted: 06/08/2019] [Indexed: 01/25/2023]
Abstract
Background Circulating cell‐free DNA (cfDNA) is not found in healthy subjects, but is readily detected after thermal injury and may contribute to the risk of multiple organ failure. The hypothesis was that a postburn reduction in DNase protein/enzyme activity could contribute to the increase in cfDNA following thermal injury. Methods Patients with severe burns covering at least 15 per cent of total body surface area were recruited to a prospective cohort study within 24 h of injury. Blood samples were collected from the day of injury for 12 months. Results Analysis of blood samples from 64 patients revealed a significant reduction in DNase activity on days 1–28 after injury, compared with healthy controls. DNase protein levels were not affected, suggesting the presence of an enzyme inhibitor. Further analysis revealed that actin (an inhibitor of DNase) was present in serum samples from patients but not those from controls, and concentrations of the actin scavenging proteins gelsolin and vitamin D‐binding protein were significantly reduced after burn injury. In a pilot study of ten military patients with polytrauma, administration of blood products resulted in an increase in DNase activity and gelsolin levels. Conclusion The results of this study suggest a novel biological mechanism for the accumulation of cfDNA following thermal injury by which high levels of actin released by damaged tissue cause a reduction in DNase activity. Restoration of the actin scavenging system could therefore restore DNase activity, and reduce the risk of cfDNA‐induced host tissue damage and thrombosis.
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Affiliation(s)
- R J Dinsdale
- Scar Free Foundation, Birmingham Centre for Burns Research, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK.,Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
| | - J Hazeldine
- National Institute for Health Research Surgical Reconstruction and Microbiology Research Centre, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK.,Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
| | - K Al Tarrah
- Scar Free Foundation, Birmingham Centre for Burns Research, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK.,Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
| | - P Hampson
- Scar Free Foundation, Birmingham Centre for Burns Research, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK.,Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
| | - A Devi
- Scar Free Foundation, Birmingham Centre for Burns Research, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK.,Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
| | - C Ermogenous
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
| | - A L Bamford
- Scar Free Foundation, Birmingham Centre for Burns Research, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - J Bishop
- National Institute for Health Research Surgical Reconstruction and Microbiology Research Centre, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - S Watts
- Chemical, Biological and Radiological (CBR) Division, Defence Science and Technology Laboratory, Porton Down, Salisbury, UK
| | - E Kirkman
- Chemical, Biological and Radiological (CBR) Division, Defence Science and Technology Laboratory, Porton Down, Salisbury, UK
| | - J J Dalle Lucca
- Translational Medical Division, Department of Chemical and Biological Technologies, Defense Threat Reduction Agency, Fort Belvoir, Virginia, USA
| | - M Midwinter
- School of Biomedical Sciences, University of Queensland, Brisbane, Queensland, Australia
| | - T Woolley
- ICT Centre, Birmingham Research Park, Birmingham, UK.,Chemical, Biological and Radiological (CBR) Division, Defence Science and Technology Laboratory, Porton Down, Salisbury, UK
| | - M Foster
- National Institute for Health Research Surgical Reconstruction and Microbiology Research Centre, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK.,Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
| | - J M Lord
- Scar Free Foundation, Birmingham Centre for Burns Research, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK.,National Institute for Health Research Surgical Reconstruction and Microbiology Research Centre, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK.,Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
| | - N Moiemen
- Scar Free Foundation, Birmingham Centre for Burns Research, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK.,Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
| | - P Harrison
- Scar Free Foundation, Birmingham Centre for Burns Research, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK.,Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
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Devi A, Samanta T. AGING, BODY PRACTICES, GENDERED SUBJECTIVITY AND LATER LIFE IDENTITIES: NARRATIVES FROM INDIA AND CANADA. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.2441] [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] [Indexed: 11/13/2022] Open
Affiliation(s)
- A Devi
- Indian Institute of Technology, Gandhinagar, Gujarat,India
| | - T Samanta
- Indian Institute of Technology Gandhinagar
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Banerjee R, Devi A, Sarkar N. Isolation and Purification of a Coagulant from Snake Venom of the Species Bothrops jararaca and the Study of its Properties. Thromb Haemost 2018. [DOI: 10.1055/s-0038-1654926] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Summary1. A material active in coagulating fibrinogen has been purified thirty-fold from crude venom of the species Bothrops jararaca. This material exhibits clotting and esterase activities, but no measurable proteolytic activity if measured by its ability to digest denatured hemoglobin.2. The clotting activity of the purified material (but not its esterase activity) is greatly enhanced by the addition of 2—3 μM of calcium ion; no other divalent metallic ion can duplicate the accelerating effect of Ca++ ion.3. The purified material is stable to dialysis, standing at room temperature for 18—20 hours, or heating at 50° C for 10 minutes; it loses both its clotting and esterase activities if heated at 70° C for 25 minutes or at 80° C for 10 minutes4. Although the powerful proteolytic enzyme inhibitors ovomucoid and soyabean trypsin inhibitor can block the clotting and esterase activities of thrombin, they are ineffective with respect to these properties of venom-coagulin. DFP, an inhibitor of far less specificity, can prevent the actions both of thrombin and of venom-coagulin5. An amount of heparin sufficient to block the clotting activity of thrombin is unable to prevent the action of venom-coagulin on fibrinogen; a much higher concentration of heparin is needed. In both cases the addition of 2—3 μM of Ca++ ion necessitates the introduction of considerably more heparin in order to block the actions of thrombin and venom-coagulin.6. While the antithrombin contained in serum can neutralize the clotting and esterase activities of thrombin, it has no effect on the actions of venom-coagulin.
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ArulJothi K, Suruthi Abirami B, Irusappan S, Gautami A, Swathine C, Devi A. L55M and Q192R polymorphism of Paraoxonase gene and the risk of myocardial infarction in South Indian Tamil population. Meta Gene 2018. [DOI: 10.1016/j.mgene.2017.11.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Abstract
The gas-phase atomic/molecular layer deposition (ALD/MLD) technique is strongly emerging as a viable approach for fabricating new exciting inorganic–organic hybrid thin-film materials. Here we report new ALD/MLD processes for copper-based hybrid materials based on five different organic precursors.
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Affiliation(s)
- D. J. Hagen
- Department of Chemistry and Materials Science
- Aalto University
- FI-00076 Espoo
- Finland
| | - L. Mai
- Inorganic Materials Chemistry
- Ruhr University Bochum
- 44801 Bochum
- Germany
| | - A. Devi
- Inorganic Materials Chemistry
- Ruhr University Bochum
- 44801 Bochum
- Germany
| | - J. Sainio
- Department of Applied Physics
- Aalto University
- FI-00076 Espoo
- Finland
| | - M. Karppinen
- Department of Chemistry and Materials Science
- Aalto University
- FI-00076 Espoo
- Finland
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Wiesing M, de Los Arcos T, Gebhard M, Devi A, Grundmeier G. Analysis of dispersive interactions at polymer/TiAlN interfaces by means of dynamic force spectroscopy. Phys Chem Chem Phys 2017; 20:180-190. [PMID: 29181468 DOI: 10.1039/c7cp05373h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The structural and electronic origins of the interactions between polycarbonate and sputter deposited TiAlN were analysed using a combined electron and force spectroscopic approach. Interaction forces were measured by means of dynamic force spectroscopy and the surface polarizability was analysed by X-ray photoelectron valence band spectroscopy. It could be shown that the adhesive interactions between polycarbonate and TiAlN are governed by van der Waals forces. Different surface cleansing and oxidizing treatments were investigated and the effect of the surface chemistry on the force interactions was analysed. Intense surface oxidation resulted in a decreased adhesion force by a factor of two due to the formation of a 2 nm thick Ti0.21Al0.45O surface oxide layer. The origin of the residual adhesion forces caused by the mixed Ti0.21Al0.45O surface oxide was clarified by considering the non-retarded Hamaker coefficients as calculated by Lifshitz theory, based on optical data from Reflection Electron Energy Loss Spectroscopy. This disclosed increased dispersion forces of Ti0.21Al0.45O due to the presence of Ti(iv) ions and related Ti 3d band optical transitions.
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Affiliation(s)
- M Wiesing
- Technical and Macromolecular Chemistry, University of Paderborn, Warburger Straße 100, 33098 Paderborn, Germany.
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Varghese A, Devi A, George PV, Livingstone RS. Radiation dose and risk in children undergoing cardiac interventions performed using flat detector angiography systems. J Radiol Prot 2017; 37:927-937. [PMID: 28885191 DOI: 10.1088/1361-6498/aa8b49] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The purpose of the study was to measure radiation doses and estimate risk from various beam projections in children undergoing cardiac interventions. The dose area product (DAP) was measured for eleven patent ductus arteriosus device closures (PDA), four atrial septal defect device closures (ASD), and three balloon pulmonary valvuloplasty (BPV) interventions performed using a flat detector system. The total mean DAPs for PDA, ASD and BPV were 1.9 Gycm2, 9.8 Gycm2 and 6.2 Gycm2 respectively. The fluoroscopic kerma dose rates increased by 10%, 33% and 92% when changing the projection from posterior-anterior to lateral projection for PDA interventions among infants, <5 yrs and >5 yrs respectively. The effective dose (ED) and organ doses were estimated from DAP using Monte Carlo software. Lungs received the highest organ dose of 7.4 mGy (PDA), 20.7 mGy (ASD) and 17.3 mGy (BPV) compared to other organs. The mean EDs from PDA, ASD and BPV were 2.5 mSv, 6.1 mSv and 4.9 mSv respectively. PDA intervention performed in infants had a radiation risk 66% higher than children aged between 3-10 years. Their lifetime attributable risk as per BEIR VII for cancer incidence was 1 in 907 males and 1 in 1047 females.
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Affiliation(s)
- Anna Varghese
- Department of Radiology, Christian Medical College and Hospital, Vellore 632 004, Tamil Nadu, South India
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18
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Kalita S, Pathak M, Devi G, Sarma HP, Bhattacharyya KG, Sarma A, Devi A. Utilization of Euryale ferox Salisbury seed shell for removal of basic fuchsin dye from water: equilibrium and kinetics investigation. RSC Adv 2017. [DOI: 10.1039/c7ra03014b] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Euryale ferox Salisbury (E. ferox) is an environmentally and economically important wetland macrophyte.
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Affiliation(s)
- S. Kalita
- Environmental Chemistry Laboratory
- Resource Management and Environment Section
- Life Science Division
- Institute of Advanced Study in Science and Technology
- Guwahati
| | - M. Pathak
- Environmental Chemistry Laboratory
- Resource Management and Environment Section
- Life Science Division
- Institute of Advanced Study in Science and Technology
- Guwahati
| | - G. Devi
- Environmental Chemistry Laboratory
- Resource Management and Environment Section
- Life Science Division
- Institute of Advanced Study in Science and Technology
- Guwahati
| | - H. P. Sarma
- Department of Environmental Science
- Gauhati University
- Guwahati
- India
| | | | - A. Sarma
- Department of Chemistry
- Morigaon College
- India
| | - A. Devi
- Environmental Chemistry Laboratory
- Resource Management and Environment Section
- Life Science Division
- Institute of Advanced Study in Science and Technology
- Guwahati
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19
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Gebhard M, Hellwig M, Kroll A, Rogalla D, Winter M, Mallick B, Ludwig A, Wiesing M, Wieck AD, Grundmeier G, Devi A. New amidinate complexes of indium(iii): promising CVD precursors for transparent and conductive In2O3 thin films. Dalton Trans 2017; 46:10220-10231. [DOI: 10.1039/c7dt01280b] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Heteroleptic and homoleptic In(iii)-amidinate complexes as promising CVD precursors for In2O3 thin films.
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Affiliation(s)
- M. Gebhard
- Inorganic Materials Chemistry
- Ruhr-University Bochum
- 44801 Bochum
- Germany
| | - M. Hellwig
- Inorganic Materials Chemistry
- Ruhr-University Bochum
- 44801 Bochum
- Germany
| | - A. Kroll
- Inorganic Materials Chemistry
- Ruhr-University Bochum
- 44801 Bochum
- Germany
| | - D. Rogalla
- RUBION
- Ruhr-University Bochum
- 44801 Bochum
- Germany
| | - M. Winter
- Inorganic Materials Chemistry
- Ruhr-University Bochum
- 44801 Bochum
- Germany
| | - B. Mallick
- Inorganic Materials Chemistry
- Ruhr-University Bochum
- 44801 Bochum
- Germany
| | - A. Ludwig
- Solid State Physics
- Ruhr-University Bochum
- 44801 Bochum
- Germany
| | - M. Wiesing
- Macromolecular and Technical Chemistry
- University of Paderborn
- 33098 Paderborn
- Germany
| | - A. D. Wieck
- Solid State Physics
- Ruhr-University Bochum
- 44801 Bochum
- Germany
| | - G. Grundmeier
- Macromolecular and Technical Chemistry
- University of Paderborn
- 33098 Paderborn
- Germany
| | - A. Devi
- Inorganic Materials Chemistry
- Ruhr-University Bochum
- 44801 Bochum
- Germany
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20
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Pavan Kumar C, Devi A, Ashok Yadav P, Rao Vadaparthi R, Shankaraiah G, Sowjanya P, Jain N, Suresh Babu K. "Click" reaction mediated synthesis of costunolide and dehydrocostuslactone derivatives and evaluation of their cytotoxic activity. J Asian Nat Prod Res 2016; 18:1063-1078. [PMID: 27329166 DOI: 10.1080/10286020.2016.1193012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Accepted: 05/19/2016] [Indexed: 06/06/2023]
Abstract
As part of pharmacological-phytochemical integrated studies on medicinal plants from Indian flora, costunolide (1) and dehydrocostus lactone (2), were isolated as major phytochemicals from Saussurea lappa, a plant traditionally used in different Asian systems of medicine. A series of 1,4-disubstituted-1,2,3-triazoles conjugates were synthesized through diastereo selective Michael addition followed by regioselective Huisgen 1,3-dipolar cycloaddition reactions. All these triazolyl derivatives (5a-5j) & (7a-7j) were well characterized using modern spectroscopic techniques and evaluated for their anticancer activity against a panel of five human cancerous celllines. The results indicated that all the analogs displayed moderate cytotoxic activity.
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Affiliation(s)
- Ch Pavan Kumar
- a Division of Natural Products Chemistry , CSIR-Indian Institute of Chemical Technology , Hyderabad 500 607 , India
| | - A Devi
- a Division of Natural Products Chemistry , CSIR-Indian Institute of Chemical Technology , Hyderabad 500 607 , India
| | - P Ashok Yadav
- a Division of Natural Products Chemistry , CSIR-Indian Institute of Chemical Technology , Hyderabad 500 607 , India
| | - R Rao Vadaparthi
- a Division of Natural Products Chemistry , CSIR-Indian Institute of Chemical Technology , Hyderabad 500 607 , India
| | - G Shankaraiah
- a Division of Natural Products Chemistry , CSIR-Indian Institute of Chemical Technology , Hyderabad 500 607 , India
| | - P Sowjanya
- b Centre for Chemical Biology , CSIR-Indian Institute of Chemical Technology , Hyderabad 500 607 , India
| | - Nishant Jain
- b Centre for Chemical Biology , CSIR-Indian Institute of Chemical Technology , Hyderabad 500 607 , India
| | - K Suresh Babu
- a Division of Natural Products Chemistry , CSIR-Indian Institute of Chemical Technology , Hyderabad 500 607 , India
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21
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ArulJothi K, Whitthall R, Futema M, Humphries S, George M, Elangovan S, Nair DR, Devi A. Molecular analysis of the LDLR gene in coronary artery disease patients from the Indian population. Clin Biochem 2016; 49:669-674. [DOI: 10.1016/j.clinbiochem.2016.02.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2015] [Revised: 02/22/2016] [Accepted: 02/24/2016] [Indexed: 02/07/2023]
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22
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Sood S, Winn T, Ibrahim S, Gobindram A, Arumugam AAV, Razali NC, Yasmin P, Hidayu N, Sani H, Mustafa MH, Fatinah A, Devi A, Karim AA, Obaid KJ, Haron NH, Fitjerald H, Koshy M. Natural history of asymptomatic gallstones: differential behaviour in male and female subjects. Med J Malaysia 2015; 70:341-345. [PMID: 26988206] [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: 06/05/2023]
Abstract
OBJECTIVE The natural history of asymptomatic (silent) gallstones has been inadequately studied. Existing information derives from studies based on oral cholecystography or relatively small sample sizes. We planned a retrospective cohort study in subjects with gallstones to determine conversion rates from asymptomatic to symptomatic. METHODS We extracted data from computerised databases of one government hospital and two private clinics in Malaysia. Files were scrutinised to ensure that criteria for asymptomatic gallstones were fulfilled. Patients were called on telephone, further questioned to confirm that the gallstones at detection were truly asymptomatic, and asked about symptoms that were consistent with previously defined criteria for biliary colic. Appropriate ethical clearances were taken. RESULTS 213 (112 males) patients fulfilled the criteria for asymptomatic gallstones and could be contacted. 23 (10.8%) developed pain after an average follow up interval of 4.02 years (range 0.1-11 years). Conversion rates from asymptomatic to symptomatic gallstones were high in the first two years of follow up, averaging 4.03±0.965 per year. Over time the conversion rates slowed, and by year 10 the annual conversion rate averaged only 1.38±0.29. Conversion rates were much higher for females compared to males (F:M hazard ratio 3.23, SE 1.54, p>z 0.014). The lifetime risks for conversion approached 6.15% for males, and 22.1% for females. CONCLUSION In conclusion, asymptomatic gallstones are much more likely to convert to symptomatic in females than in males. Males in whom asymptomatic stones are discovered should be advised conservative treatment. Surgery may be preferable to conservative management if the subject is a young female.
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Affiliation(s)
- S Sood
- Monash University Malaysia, Jeffrey Cheah School of Medicine, 8 Jalan Masjid Abu Bakar, 80100 Johor Bahru, Johor, Malaysia.
| | - T Winn
- MAHSA University, Jalan University Campus, Kuala Lumpur, Malaysia
| | - S Ibrahim
- Hospital Putrajaya, Putrajaya, Selangor, Malaysia
| | - A Gobindram
- Mahameru International Medical Centre, Kuala Lumpur, Malaysia
| | | | - N C Razali
- Universiti Teknologi MARA, Faculty of Medicine, Malaysia
| | - P Yasmin
- Universiti Teknologi MARA, Faculty of Medicine, Malaysia
| | - N Hidayu
- Universiti Teknologi MARA, Faculty of Medicine, Malaysia
| | - H Sani
- Universiti Teknologi MARA, Faculty of Medicine, Malaysia
| | - M H Mustafa
- Universiti Teknologi MARA, Faculty of Medicine, Malaysia
| | - A Fatinah
- Universiti Teknologi MARA, Faculty of Medicine, Malaysia
| | - A Devi
- National Defence University of Malaysia, Faculty of Medicine and Defence Health, Kuala Lumpur, Malaysia
| | - A A Karim
- Universiti Teknologi MARA, Faculty of Medicine, Malaysia
| | - K J Obaid
- Universiti Teknologi MARA, Faculty of Medicine, Malaysia
| | - N H Haron
- Universiti Teknologi MARA, Faculty of Medicine, Malaysia
| | | | - M Koshy
- Universiti Teknologi MARA, Faculty of Medicine, Malaysia
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23
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Harishankar M, Logeshwaran S, Sujeevan S, Aruljothi K, Dannie M, Devi A. Genotoxicity evaluation of metformin and glimepiride by micronucleus assay in exfoliated urothelial cells of type 2 diabetes mellitus patients. Food Chem Toxicol 2015; 83:146-50. [DOI: 10.1016/j.fct.2015.06.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Revised: 06/15/2015] [Accepted: 06/16/2015] [Indexed: 10/23/2022]
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24
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Pathak M, Devi A, Bhattacharyya KG, Sarma HK, Subudhi S, Lal B. Production of a non-cytotoxic bioflocculant by a bacterium utilizing a petroleum hydrocarbon source and its application in heavy metal removal. RSC Adv 2015. [DOI: 10.1039/c5ra08636a] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A bacterium isolated from the activated sludge of an oil refinery of Assam, India retained efficient bioflocculating activity through production of the bioflocculant when it was grown on a crude oil amended medium void of any other carbon source.
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Affiliation(s)
- M. Pathak
- Environmental Chemistry Laboratory
- Resource Management and Environment Section
- Life Science Division
- Institute of Advanced Study in Science and Technology
- Guwahati
| | - A. Devi
- Environmental Chemistry Laboratory
- Resource Management and Environment Section
- Life Science Division
- Institute of Advanced Study in Science and Technology
- Guwahati
| | | | - H. K. Sarma
- Department of Biotechnology
- Gauhati University
- Guwahati
- India
| | - S. Subudhi
- Environmental and Industrial Biotechnology Division
- The Energy and Resources Institute
- New Delhi
- India
| | - B. Lal
- Environmental and Industrial Biotechnology Division
- The Energy and Resources Institute
- New Delhi
- India
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25
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Irvine S, Davidson C, Veresov N, Adams M, Devi A. Lenses and Lessons: Using three different research perspectives in early childhood education research. Cultural-Historical Psychology 2015. [DOI: 10.17759/chp.2015110307] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
In contemporary Western research, collaboration is held in high esteem. This developing practice is chal¬lenging particularly for researchers who follow varying theoretical approaches. However although a challeng¬ing endeavour, when viewing the one data set with different lenses, there are various lessons that can be shared. A key aspect of this paper is involved researchers' different analytical perspectives in one data set to learn more about each other's research insights, rather than become instant expert in other's approaches. The interview data reported in this paper originates from a larger study researching parents' experience of using early child¬hood education and care (ECEC) in Australia. Here we analyse and report on two shared interview excerpts and use three different research lenses for analysis; phenomenographic study, conversational analysis and cul¬tural-historical theory. The finding of this paper demonstrates that applying different lenses provide different interpretations, including strengths, limitations and opportunities. In this paper we argue that collaborative research practices enhance our understanding of varying research approaches and the scope, quality, transla¬tion of research and the researchers' capacity are enhanced.
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28
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Kumar A, Sarma K, Panvor J, Mazumdar K, Devi A, Krishna M, Ray PC. Threats to the Bengal slow loris Nycticebus bengalensis in and around Itanagar Wildlife Sanctuary, Arunachal Pradesh, India: impediments to conservation. ENDANGER SPECIES RES 2014. [DOI: 10.3354/esr00540] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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29
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Gebhard M, Hellwig M, Parala H, Xu K, Winter M, Devi A. Indium-tris-guanidinates: a promising class of precursors for water assisted atomic layer deposition of In2O3thin films. Dalton Trans 2014; 43:937-40. [DOI: 10.1039/c3dt52746h] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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30
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Chase D, Devi A, John B. Response to "Anatomic Twist to a Straightforward Ablation". Indian Pacing Electrophysiol J 2013; 13:235-6. [PMID: 24482567 PMCID: PMC3876584 DOI: 10.1016/s0972-6292(16)30695-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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31
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Bekermann D, Gasparotto A, Barreca D, Maccato C, Comini E, Sada C, Sberveglieri G, Devi A, Fischer RA. Co3O4/ZnO nanocomposites: from plasma synthesis to gas sensing applications. ACS Appl Mater Interfaces 2012; 4:928-934. [PMID: 22260293 DOI: 10.1021/am201591w] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Herein, we describe the design, fabrication and gas sensing tests of p-Co(3)O(4)/n-ZnO nanocomposites. Specifically, arrays of (001) oriented ZnO nanoparticles were grown on alumina substrates by plasma enhanced-chemical vapor deposition (PECVD) and used as templates for the subsequent PECVD of Co(3)O(4) nanograins. Structural, morphological and compositional analyses evidenced the successful formation of pure and high-area nanocomposites with a tailored overdispersion of Co(3)O(4) particles on ZnO and an intimate contact between the two oxides. Preliminary functional tests for the detection of flammable/toxic analytes (CH(3)COCH(3), CH(3)CH(2)OH, NO(2)) indicated promising sensing responses and the possibility of discriminating between reducing and oxidizing species as a function of the operating temperature.
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Affiliation(s)
- D Bekermann
- Department of Chemistry, Padova University and INSTM, 35131 Padova, Italy
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32
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Rao SK, Bhat GS, Aradhya S, Devi A, Bhat M. Study of the efficacy of toothpaste containing casein phosphopeptide in the prevention of dental caries: a randomized controlled trial in 12- to 15-year-old high caries risk children in Bangalore, India. Caries Res 2009; 43:430-5. [PMID: 19864905 DOI: 10.1159/000252976] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2007] [Accepted: 09/04/2009] [Indexed: 11/19/2022] Open
Abstract
Casein phosphopeptide (CPP) has the potential to be added to mouth rinses, gels, toothpastes, chewing gums and confectioneries. Until now CPP has been studied in vitro, in situ and in animals, but clinical trials are lacking. This study was conducted to evaluate the efficacy of CPP-containing toothpaste in preventing dental caries in schoolchildren. The study was conducted among 150 schoolchildren randomly divided into three groups, each using one of three types of toothpastes: (a) containing 2% w/w CPP; (b) containing 1,190 mg/kg fluoride as 0.76% sodium monofluorophosphate (SMFP); (c) placebo toothpaste without CPP or fluoride. Students brushed with the given toothpastes for 24 months. Oral hygiene and caries experience were assessed at baseline, 12 and 24 months. The increments in caries lesions were calculated and analyzed to assess the caries-preventive effect. A significant reduction in caries increment was observed among students using CPP toothpaste or SMFP toothpaste, compared with the group using the placebo toothpaste. The reduction in caries increment was not significantly different between the CPP and SMFP groups. Oral Hygiene Index score increased from the 12-month to the 24-month examination. It is concluded that CPP can be effectively incorporated into calcium carbonate-based toothpaste and that toothpaste containing CPP is effective in preventing caries. Toothpaste containing 2% CPP seemed to have an efficacy similar to paste containing 1,190 mg/kg SMFP in the prevention of caries.
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Affiliation(s)
- S K Rao
- Manipal College of Dental Sciences, Manipal, India.
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33
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Thomas R, Bhakta R, Milanov A, Devi A, Ehrhart P. Thin Films of ZrO2 for High-k Applications Employing Engineered Alkoxide- and Amide-Based MOCVD Precursors. ACTA ACUST UNITED AC 2007. [DOI: 10.1002/cvde.200606512] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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34
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Thomas R, Milanov A, Bhakta R, Patil U, Winter M, Ehrhart P, Waser R, Devi A. Liquid-Injection MOCVD of ZrO2 Thin Films using Zirconium Bis(diethlyamido)-bis(di-tert-butylmalonato) as a Novel Precursor. ACTA ACUST UNITED AC 2006. [DOI: 10.1002/cvde.200506481] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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35
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Patil U, Thomas R, Milanov A, Bhakta R, Ehrhart P, Waser R, Becker R, Becker HW, Winter M, Merz K, Fischer R, Devi A. MOCVD of ZrO2 and HfO2 Thin Films from Modified Monomeric Precursors. ACTA ACUST UNITED AC 2006. [DOI: 10.1002/cvde.200506394] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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36
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Milanov A, Bhakta R, Thomas R, Ehrhart P, Winter M, Waser R, Devi A. Mixed amide–malonate compound of hafnium as a novel monomeric precursor for MOCVD of HfO2thin films. ACTA ACUST UNITED AC 2006. [DOI: 10.1039/b509380e] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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37
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Abstract
Neurocysticercosis is the most common parasitic infestation of the central nervous system which manifests commonly as acute onset focal seizures. We report a rare clinical presentation of neurocysticercosis in a 1-year-old infant who presented with involuntary movements. Involuntary movements are not a common manifestation. Young children are rarely affected by this disease. In endemic areas, when a child presents with seizures or unusual neurological features and the CT scan shows contrast enhancing lesions or cystic lesions neurocysticercosis should be considered however young the child may be.
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Affiliation(s)
- Julius Xavier Scott
- Department of Child Health Unit III, Christian Medical College, Vellore, India
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38
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39
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Bhakta R, Thomas R, Hipler F, Bettinger HF, Müller J, Ehrhart P, Devi A. MOCVD of TiO2thin films and studies on the nature of molecular mechanisms involved in the decomposition of [Ti(OPri)2(tbaoac)2]. ACTA ACUST UNITED AC 2004. [DOI: 10.1039/b405963h] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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40
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Bhakta R, Hipler F, Devi A, Regnery S, Ehrhart P, Waser R. Mononuclear Mixedβ-Ketoester-alkoxide Compound of Titanium as a Promising Precursor for Low-Temperature MOCVD of TiO2 Thin Films. ACTA ACUST UNITED AC 2003. [DOI: 10.1002/cvde.200304151] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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41
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Becker R, Devi A, Weiß J, Weckenmann U, Winter M, Kiener C, Becker HW, Fischer R. A Study on the Metal Organic CVD of Pure Copper Films from Low Cost Copper(II) Dialkylamino-2-propoxides: Tuning the Thermal Properties of the Precursor by Small Variations of the Ligand. ACTA ACUST UNITED AC 2003. [DOI: 10.1002/cvde.200306236] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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42
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43
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44
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Parala H, Devi A, Rogge W, Birkner A, Fischer RA. Synthesis of GaN particles in porous matrices by chemical vapor infiltration of single molecule precursors. ACTA ACUST UNITED AC 2001. [DOI: 10.1051/jp4:2001360] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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45
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Devi A, Rogge W, Wohlfart A, Hipler F, Becker HW, Fischer RA. A Study of Bisazido(dimethylamino-propyl)gallium as a Precursor for the OMVPE of Gallium Nitride Thin Films in a Cold-Wall Reactor System under Reduced Pressure. ACTA ACUST UNITED AC 2000. [DOI: 10.1002/1521-3862(200010)6:5<245::aid-cvde245>3.0.co;2-1] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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46
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Behura SK, Sahu SC, Rajamani S, Devi A, Mago R, Nair S, Mohan M. Differentiation of Asian rice gall midge, Orseolia oryzae (Wood-Mason), biotypes by sequence characterized amplified regions (SCARs). Insect Mol Biol 1999; 8:391-397. [PMID: 10469256 DOI: 10.1046/j.1365-2583.1999.83126.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
We developed a polymerase chain reaction (PCR)-based assay that distinguished five different biotypes of the Asian gall midge (Orseolia oryzae), a major insect pest of rice. A total of 400 random primers were screened using random amplified polymorphic DNAs (RAPDs). Five diagnostic PCR products were isolated, cloned, sequenced and converted to sequence characterized amplified regions (SCARs). Primers specific to these SCARs were able to amplify specific DNA fragments from genomic DNAs of five biotypes of gall midge in a multiplexed-PCR-based assay. The amplified DNA fragments were used as diagnostic markers to identify different biotypes of gall midge. The SCAR primers were also capable of differentiating the Asian from the African rice gall midge (Orseolia oryzivora) as well as detecting a variant of biotype 5 which caused an outbreak in Kerala, India. Unlike the use of plant host differentials and midge feeding behaviour for identifying biotypes, this assay is fast, reliable and unaffected by environmental factors.
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Affiliation(s)
- S K Behura
- Central Rice Research Institute (CRRI), Cuttack-753 006, Orissa, India
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Devi A, Benn PA. X-chromosome abnormalities in women with premature ovarian failure. J Reprod Med 1999; 44:321-4. [PMID: 10319299] [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: 02/12/2023]
Abstract
OBJECTIVE To evaluate the significance of X-chromosome abnormalities identified in a series of women with premature ovarian failure (POF). STUDY DESIGN Karyotypes were reviewed for all women referred to our cytogenetic laboratory over a five-year interval with the diagnosis of POF. Thirty women aged less than 40 with unexplained secondary amenorrhea and elevated follicle-stimulating hormone were included. RESULTS Of the 30 patients, 26 had a normal karyotype and 4 showed the following X-chromosome abnormalities: 46,Xi(Xq), 45,X/46,XX mosaic, 46,X,der(X)t(X;Y)(q28;q12) mat and 46,X,t(X;5)(q22;q11.2) mat. In the two families with familial translocations, carrier females within each family showed considerable variability in age at onset of menopause. CONCLUSION Both familial and nonfamilial X-chromosome abnormalities can be identified in women with POF. Cytogenetic studies should not be limited to those patients with very-early-onset POF.
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Affiliation(s)
- A Devi
- Department of Pediatrics, University of Connecticut Health Center, Farmington 06030-6140, USA
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Patnaik S, Guru Row TN, Raghunathan L, Devi A, Goswami J, Shivashankar SA, Chandrasekaran S, Robinson WT. Low-Temperature Structure of Two Copper-Based Precursors for MOCVD: Aquabis(tert-butyl acetoacetato)copper(II) and Bis(dipivaloylmethanido)copper(II). Acta Crystallogr C 1996. [DOI: 10.1107/s0108270195012157] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Goswami J, Raghunathan L, Devi A, Shivashankar SA, Chandrasekaran S. Chemical vapour deposition of thin copper films using a new metalorganic precursor. ACTA ACUST UNITED AC 1996. [DOI: 10.1007/bf00579254] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Rahaman AA, Devi A, Esso MS, Prabhakar J. Distillery effluent treatment using Artemia. Indian J Exp Biol 1992; 30:313-6. [PMID: 1459599] [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: 12/27/2022]
Abstract
Artemia functions as living filter for the secondary treatment of distillery effluent, which reduces up to 69% of the total solids and 33.34% of BOD in the saline medium of 60 ppt. Chemical analysis of diluted effluent after treatment with Artemia showed a significant (P less than 0.001) decrease in the electrical conductivity, calcium and potassium values. However, an increase in sodium concentration and pH values, was recorded during experiment.
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Affiliation(s)
- A A Rahaman
- Department of Zoology, A.V.V.M. Sri Pushpam College (Autonomous), Poondi, Thanjavur, India
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