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Ahmad F, Jamil M, Jeon YJ. New developments in the dye-doped polymer dispersed liquid crystals gratings: A review. INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION 2017. [DOI: 10.1080/1023666x.2017.1363550] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Ahmad F, Bisheswar R, Andrews A. 3PREVENTING FRACTURES: CAN DOCTORS IMPROVE THEIR BONE PROTECTION PRESCRIBING? Age Ageing 2017. [DOI: 10.1093/ageing/afx115.3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Sharif M, Ashraf MS, Mushtaq N, Nawaz H, Mustafa MI, Ahmad F, Younas M, Javaid A. Influence of varying levels of dried citrus pulp on nutrient intake, growth performance and economic efficiency in lambs. JOURNAL OF APPLIED ANIMAL RESEARCH 2017. [DOI: 10.1080/09712119.2017.1294540] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Hamidi MFFA, Harun WSW, Samykano M, Ghani SAC, Ghazalli Z, Ahmad F, Sulong AB. A review of biocompatible metal injection moulding process parameters for biomedical applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 78:1263-1276. [PMID: 28575965 DOI: 10.1016/j.msec.2017.05.016] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Revised: 04/30/2017] [Accepted: 05/04/2017] [Indexed: 01/07/2023]
Abstract
Biocompatible metals have been revolutionizing the biomedical field, predominantly in human implant applications, where these metals widely used as a substitute to or as function restoration of degenerated tissues or organs. Powder metallurgy techniques, in specific the metal injection moulding (MIM) process, have been employed for the fabrication of controlled porous structures used for dental and orthopaedic surgical implants. The porous metal implant allows bony tissue ingrowth on the implant surface, thereby enhancing fixation and recovery. This paper elaborates a systematic classification of various biocompatible metals from the aspect of MIM process as used in medical industries. In this study, three biocompatible metals are reviewed-stainless steels, cobalt alloys, and titanium alloys. The applications of MIM technology in biomedicine focusing primarily on the MIM process setting parameters discussed thoroughly. This paper should be of value to investigators who are interested in state of the art of metal powder metallurgy, particularly the MIM technology for biocompatible metal implant design and development.
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Ahmad F, Jamil M, Jeon YJ. Study of polymer dispersed liquid crystal film based on amphiphilic polymer matrix. ARAB J CHEM 2017. [DOI: 10.1016/j.arabjc.2014.01.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Ahmad F, Jamil M, Jeon YJ. Reverse mode polymer stabilized cholesteric texture (PSCT) light shutter display – A short review. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.03.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Ahmad F, Jamil M, Lee JW, Jee KE, Jeon YJ. Transitions of bipolar to radial orientation of liquid crystal droplets in amphiphilic system of PDLC film. J DISPER SCI TECHNOL 2017. [DOI: 10.1080/01932691.2016.1236267] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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83
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Ahmad F, Smylie J, Omand M, Cyriac A, O'Campo P. South Asian Immigrant Men and Women and Conceptions of Partner Violence. J Immigr Minor Health 2017; 19:57-66. [PMID: 26472546 PMCID: PMC5285422 DOI: 10.1007/s10903-015-0301-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Limited knowledge exists about conceptual variations in defining intimate partner violence (IPV) by ethnicity, such as South Asian (SA) immigrant men and women. In a multi-ethnic study, we employed participatory concept mapping with three phases: brainstorming on what constitutes IPV; sorting of the brainstormed items; and interpretation of visual concept maps generated statistically. The parent study generated an overall general multi-ethnic map (GMEM) that included participant interpretations. In the current study, we generated a SA specific initial-map that was interpreted by eleven SA men and women in gender specific groups. Their interpretations are examined for similar and unique aspects across men and women and compared to GMEM. SA men and women shared similar views about sexual abuse and victim retaliation, which also aligned closely with GMEM. Both SA women and men had an expanded view of the concept of controlling behaviors compared to GMEM. SA women, unlike SA men, viewed some aggressive behaviors and acts as cultural with some GMEM congruence. SA women uniquely identified some IPV acts as private-public. We discuss implications for research and service assessments.
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Eberhard JM, Ahmad F, Hong HS, Bhatnagar N, Keudel P, Schulze Zur Wiesch J, Schmidt RE, Meyer-Olson D. Partial recovery of senescence and differentiation disturbances in CD8 + T cell effector-memory cells in HIV-1 infection after initiation of anti-retroviral treatment. Clin Exp Immunol 2016; 186:227-238. [PMID: 27377704 DOI: 10.1111/cei.12837] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Revised: 06/13/2016] [Accepted: 06/24/2016] [Indexed: 01/22/2023] Open
Abstract
Immune senescence as well as disturbed CD8+ T cell differentiation are a hallmark of chronic HIV infection. Here, we investigated to what extent immune senescence is reversible after initiation of anti-retroviral treatment (ART). Peripheral blood mononuclear cells (PBMCs) from a cohort of HIV patients with different disease courses, including untreated viral controllers (n = 10), viral non-controllers (n = 16) and patients on ART (n = 20), were analysed and compared to uninfected controls (n = 25) by flow cytometry on bulk and HIV-specific major histocompatibility complex (MHC) class I tetramer+ CD8+ T cells for expression of the memory markers CCR7 and CD45RO, as well as the senescence marker CD57 and the differentiation and survival marker CD127. Furthermore, a subset of patients was analysed longitudinally before and after initiation of ART. Frequencies of CD57+ CD8+ T cells decreased after initiation of ART in central memory (Tcm) but not in effector memory T cell populations (TemRO and TemRA). The frequency of CD127+ CD8+ cells increased in Tcm and TemRO. We observed a reduction of CD127- T cells in Tcm, TemRO and partially in TemRA subsets after initiation of ART. Importantly, HIV-specific CD8+ TemRO cells predominantly displayed a CD127- CD57+ phenotype in untreated HIV-patients, whereas the CD127+ CD57- phenotype was under-represented in these patients. The frequency of the CD127+ CD57- CD8+ T cell subpopulation correlated strongly with absolute CD4+ counts in HIV-infected patients before and after initiation of ART. These findings can be interpreted as a phenotypical correlate of CD8+ memory T cell differentiation and the premature 'ageing' of the immune system, which was even observed in successfully virally suppressed HIV patients.
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Islam MN, Hossain MA, Yeasmin L, Dutta A, Ahmad F, Khan RH. Clinical Profile and Biochemical Abnormalities of Neonatal Seizure at NICU of a Tertiary Care Hospital. Mymensingh Med J 2016; 25:445-449. [PMID: 27612889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Seizures are most common neurological emergency in the neonatal period and present as a diagnostic and therapeutic challenge to clinicians worldwide. This prospective observational study was conducted in the Neonatal Intensive Care Unit of Mymensingh Medical College Hospital from January 2015 to March 2015. Total 318 patients were enrolled in the study who presented with convulsion. Most of the patients were term (72.95%) and birth weight was normal (77.3%). Around 75% patients were delivered at home. Most common causes of convulsion were Perinatal Asphyxia (78%) followed by Septicemia, Hypoglycemia and Meningitis in order of frequency. Commonest type of seizure was subtle seizure (45.5%). Most of the patients recovered completely (73%) and 8.4% patients died due to complications.
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Ahmad F, Cox S, Thim C, Sadiq M. PS235 The Role of Transesophageal Cardiography in Risk Stratification and Mortality Reduction of Critically ill Patients With Complicated Infective Endocarditis: A 12 – Year Single Centre Retrospective Study. Glob Heart 2016. [DOI: 10.1016/j.gheart.2016.03.186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Ahmad F, Cox S, Soon Thim C, Abdul Rahman E, Sadiq M. PS234 Disease Spectrum of Complicated Infective Endocarditis in an Urban Area of a Developing Country: A Single-Centre Experience. Glob Heart 2016. [DOI: 10.1016/j.gheart.2016.03.185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Jaafar HH, Al-Awar F, Ahmad F. Effect of Inflow Class Selection on Multi-Objective Reservoir Operation Using Stochastic Dynamic Programming. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2016. [DOI: 10.1007/s13369-016-2185-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Kim H, Jamil M, Rhee J, Ahmad F, Jeon Y. A simulation study on angular and micro pattern effects in GEM detectors. Appl Radiat Isot 2016; 110:64-69. [DOI: 10.1016/j.apradiso.2015.12.065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Revised: 12/03/2015] [Accepted: 12/31/2015] [Indexed: 10/22/2022]
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Tak IR, Dar JS, Dar SA, Ganai BA, Chishti MZ, Ahmad F. [A comparative analysis of various antigenic proteins found in Haemonchus contortus--a review]. Mol Biol (Mosk) 2016; 49:883-90. [PMID: 26710767 DOI: 10.7868/s002689841506021x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Accepted: 03/17/2015] [Indexed: 11/23/2022]
Abstract
Many innovative researches on the development and introduction of recombinant vaccines against many economically important parasites were carried out in the 20th century. Research continues to hold promise with the development of immunological and molecular approaches for control of these parasites and in this regard it has already been seen that blood-sucking parasites such as Haemonchus contortus and Ostertagia ostertagi are susceptible to control by vaccines containing "novel" or "concealed" antigens. Haemonchus contortus is primarily pathogenic to sheep and its blood-feeding behaviour causes effects ranging from mild anaemia to mortality in young animals. Current means of control which are dependent on repeated treatment with anthelmintics are responsible for the increasing drug resistance of this parasite. Together with the growing concern of residual chemicals in the environment and food chain, this has led to attempts to better understand the biology of the parasite with an aim to develop alternate means of control, including the development of molecular vaccines. More problematic and also important is the formulation and delivery strategy to induce expulsion of this parasite, using vaccines containing recombinant "conventional" antigens. Tremendous progress has been made in the last decade in identifying several antigens from Haemonchus contortus which in their native form stimulate useful levels of protective immunity. Vaccines have been developed against H. contortus using 'novel' gut antigens from the parasite, but variable responsiveness of the host sheep has resulted in varying degrees of protection which are stimulated by these vaccines. Computer models have also been used to simulate vaccine efficacy in worm control and have yielded good results. This review will try to summarise the protective efficacy and also the molecular properties of principal candidate antigens which are expressed by this parasite. The review will try to cover the aspirations, current success, limitations and problems faced by researchers in the control of this economically important parasite.
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Kucuk Bicer B, Ozcebe H, Kose E, Ahmad F, Kose O. Corporal punishment: similarities and differences from Eastern cultured countries. Eur J Public Health 2016. [DOI: 10.1093/eurpub/ckv176.292] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Ahmad F, Ansar M, Mehmood S, Izoduwa A, Lee K, Nasir A, Abrar M, Mehmood S, Ullah A, Aziz A, Smith JD, Shendure J, Bamshad MJ, Nicekrson DA, Santos-Cortez RLP, Leal SM, Ahmad W. A novel missense variant in the PNPLA1 gene underlies congenital ichthyosis in three consanguineous families. J Eur Acad Dermatol Venereol 2015; 30:e210-e213. [PMID: 26691440 DOI: 10.1111/jdv.13540] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Tak IR, Dar JS, Dar SA, Ganai BA, Chishti MZ, Ahmad F. A comparative analysis of various antigenic proteins found in Haemonchus contortus—a review. Mol Biol 2015. [DOI: 10.1134/s0026893315060217] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Tanou K, Irving S, Ahmad F, Fleming L, Rosenthal M, Bush A. P80 Extrapolating lung clearance index (LCI) from shortened measurements: Abstract P80 Table 1. Thorax 2015. [DOI: 10.1136/thoraxjnl-2015-207770.217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Ahmad F, Leake DS. 24 Initial oxidation of LDL by iron at lysosomal pH is due to tryptophan radicals and is not inhibited by probucol. BRITISH HEART JOURNAL 2015. [DOI: 10.1136/heartjnl-2015-308734.24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Ahmad Sharoni SK, Shdaifat EA, Mohd Abd Majid HA, Shohor NA, Ahmad F, Zakaria Z. Social support and self-care activities among the elderly patients with diabetes in Kelantan. MALAYSIAN FAMILY PHYSICIAN : THE OFFICIAL JOURNAL OF THE ACADEMY OF FAMILY PHYSICIANS OF MALAYSIA 2015; 10:34-43. [PMID: 26425293 PMCID: PMC4567891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
INTRODUCTION Diabetes is common among the elderly and can significantly affect their lives including the issues related with social support and diabetic self-care activities. OBJECTIVES The objective of this study was to examine the social support and self-care activities among the elderly patients with diabetes. METHODS A survey involving 200 patients was conducted from March 2013 to May 2013 in three hospitals in Kelantan. Data were obtained through self-administered questionnaires and clinical characteristics were acquired from the patients' records. RESULTS The scores for social support (mean = 19.26; SD = 2.63) and self-care activities (mean = 14.83; SD = 4.92) were moderate. Higher social support was associated with high levels of glycated haemoglobin (HbA1c), fasting blood sugar (FBS) level, the duration of diabetes and a decrease in body mass index (BMI) (p<0.05). It was observed that the patients with low educational, Hb1Ac and FBS level, with other chronic diseases and who have had diabetes for some time had low self-care activities (p<0.05). There was a significant negative relationship between an increase in social support and decrease in self-care activity (p<0.05). CONCLUSION Healthcare providers, family and friends have to strengthen their relationship with the elderly patients with diabetes to provide more social support and promote the compliance with diabetic self-care activities to improve clinical outcomes.
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Longford E, Scott A, Fradsham S, Jeffries C, Ahmad F, Holland G, Telfer R, Carlson J, Ferguson H. MALIGNANT BOWEL OBSTRUCTION—A SYSTEMATIC LITERATURE REVIEW AND EVALUATION OF CURRENT PRACTICE. BMJ Support Palliat Care 2015. [DOI: 10.1136/bmjspcare-2014-000838.44] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Jamil M, Rhee JT, Kim HG, Ahmad F, Jeon YJ. Thermal neutron response of a boron-coated GEM detector via GEANT4 Monte Carlo code. Appl Radiat Isot 2015; 95:90-93. [PMID: 25464183 DOI: 10.1016/j.apradiso.2014.09.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2013] [Revised: 07/07/2014] [Accepted: 09/29/2014] [Indexed: 11/19/2022]
Abstract
In this work, we report the design configuration and the performance of the hybrid Gas Electron Multiplier (GEM) detector. In order to make the detector sensitive to thermal neutrons, the forward electrode of the GEM has been coated with the enriched boron-10 material, which works as a neutron converter. A total of 5×5cm2 configuration of GEM has been used for thermal neutron studies. The response of the detector has been estimated via using GEANT4 MC code with two different physics lists. Using the QGSP_BIC_HP physics list, the neutron detection efficiency was determined to be about 3%, while with QGSP_BERT_HP physics list the efficiency was around 2.5%, at the incident thermal neutron energies of 25meV. The higher response of the detector proves that GEM-coated with boron converter improves the efficiency for thermal neutrons detection.
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Ahmad F, Irving S, Bush A, Fleming L, Saglani S. P205 Multiple Breath Washouts In Children Can Be Significantly Shortened Without Compromising Measurement Quality. Thorax 2014. [DOI: 10.1136/thoraxjnl-2014-206260.334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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