نتایج جستجو برای: electromagnetic field

تعداد نتایج: 842886  

Journal: :journal of paramedical sciences 0
majid mahdavi department of biology, faculty of natural science, university of tabriz, tabriz, iran. reza yekta department of biology, faculty of natural science, university of tabriz, tabriz, iran. saeed hesami tackallou department of biology, garmsar branch, islamic azad university, tehran, iran.

extremely low frequency (elf) and radio frequency (rf) electromagnetic field may affect biological systems by raising generation free radicals by decline activities of glutathione peroxidase dismutase or increase in the lifetime of free radicals with inhibited pretreatment of cells antioxidant like that alpha tocopherol. elf and  rf electromagnetic  field maycan damaged dna  with raising level ...

Journal: :cell journal 0
maryam jazayeri mohammad ali shokrgozar nooshin haghighipour bahram bolouri fereshteh mirahmadi mehdi farokhi

objective: most people experience bone damage and bone disorders during their lifetimes. the use of autografts is a suitable way for injury recovery and healing. mesenchymal stem cells (mscs) are key players in tissue engineering and regenerative medicine. their proliferation potential and multipotent differentiation ability enable mscs to be considered as appropriate cells for therapy and clin...

بهاءالدینی, امین ا... , طاهریانفرد, مهناز, فاضلی, مهدی, کریمی, سعیده,

Introduction: The aim of the present study is to investigate the effect of interaperitoneal injection of baclofen (GABA-B agonist) and CGP35348 (GABA-B antagonist) on serum testosterone concentration in aggressive rats exposed to electromagnetic field. Methods: Fifty five mature male rats weighing 200±20 grams were studied. Animals were divided into 2 main groups and four subgroups. Main grou...

Journal: :Journal of Mathematical Analysis and Applications 2002

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علم و صنعت ایران - دانشکده مهندسی برق 1383

با پیشرفت تکنولوژی و افزایش فرکانس و کاهش ابعاد در بردهای الکترونیکی، تاثیرگذاری و تاثیرپذیری خطوط انتقال درون برد بر هم افزایش یافته است. برای اطلاع از میزان این تاثیر نیاز به محاسبه همشنوایی بین خطوط جدی می شود. همچنین برای اطلاع یافتن از اینکه برد حاصل استانداردهای emc را بر آورده می کند، باید میزان ولتاژ و جریان القایی در انتهای خطوط هنگامی که این برددر حضور میدان الکترومغناطیس خارجی قرار گ...

Journal: :avicenna journal of phytomedicine 0
shokat majidian eydgahi research center for animal development, applied biology & biology department, mashhad branch, islamic azad university, mashhad, iran javad baharara research center for animal development, applied biology & biology department, mashhad branch, islamic azad university, mashhad, iran saeideh zafar balanezhad research center for animal development, applied biology & biology department, mashhad branch, islamic azad university, mashhad, iran majid asadi samani student's research committee, shahrekord university of medical sciences, shahrekord, iran

objective: much attention is paid to angiogenesis due to its mutual role in health and disease. therefore, the effect of various chemical and physical agents on inhibition of this process has been recently studied. this study was conducted to investigate the synergic effect of glycyrrhizic acid and electromagnetic field on angiogenesis. materials and methods: in this experimental study, 44 ross...

Journal: :journal of research in health sciences 0
fatemeh shamsi mahmoudabadi saeideh ziaei mohammad firoozabadi anoshirvan kazemnejad

background: exposure to extremely low frequency electromagnetic fields is increasingly common, but the potential influence on pregnant women has not been thoroughly investigated. methods: in this case-control study, 58 women who had an unexplained spontaneous abortion at < 14 weeks gestation and 58 matched pregnant women >14 weeks gestation were enrolled in 2012. the women completed the questio...

Journal: :basic and clinical neuroscience 0
mahnaz taherian fard shiraz university, school of veterinary medicine, department of basic sciences, shiraz, iran aminollah bahaeddini shiraz university, school of sciences, department of biology, shiraz, iran tahoora shomali shiraz university, school of veterinary medicine, department of basic sciences, shiraz, iran saeideh karimi haghighi shiraz university, school of veterinary medicine, department of basic sciences, shiraz, iran

introduction: the present study investigated the interactive effect of gabab receptors and extremely low frequency electromagnetic field (elf-emf) on foot shock-induced aggression in rats. methods: fifty adult male rats were randomly assigned into 10 groups. groups 2, 4, 6, 8 and 10 were exposed to 50 hz, 500 µt elf-emf for 30 days 8h per day while the remaining groups (1, 3, 5, 7 and 9) were s...

Background and Objective: Diabetes mellitus appears in hyperglycemia mode and ulcers in extremities. Hyperglycemia can lead to impair wound healing in diabetic patients. Electromagnetic fields (EMF) with different intensities have distinctive effects on animal cells. The purpose of this study was to investigate the effects of low frequency electromagnetic field on wound healing in diabet...

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