نتایج جستجو برای: electromagnetic fields

تعداد نتایج: 307264  

Journal: :iranian biomedical journal 0
عیسی نورمحمدی issa nourmohammadi حسن احمدوند hassan ahmadvand محمد تقی خانی mohammad taghikhani

there have been much speculation and debate concerning the effect of electromagnetic fields (emf) on body systems. various reports have implicated excessive exposure to emf to certain forms of leukemia. it has also been reported that emf may cause alteration in the levels of certain macro- and micro-nutrients such as copper, zinc, selenium, calcium and iron. we have undertaken this study to det...

Journal: :journal of research in health sciences 0
ha yousefi p nasiri

background: in psychological studies, exposure to electromagnetic field is one of the hazardous factors, which has adverse effects on mental health. exposure to electromagnetic field due to daily use of electricity makes this study so important. the goal of this study was to determine the relationship between psychological symptoms and occupational exposure to electromagnetic field among worker...

Journal: :کومش 0
جواد بهار آرا javad baharara معصومه صبوری masomeh saboori

introduction: depending on mode, intensity and length of application, and stage of development, the low-frequency electromagnetic fields (lfes) can induce a wide variety of biological effects in organisms. the chick limb bud is a powerful experimental system for study pattern formation in vertebrate embryo. the aim of this study was to examine the effects of an application lfes (50hz, 50g) on c...

Background: Previous studies have shown that exposure to electromagnetic fields produced by magnetic resonance imaging or mobile phones can lead to increased microleakage of dental amalgam.Objective: The aim of the present study was to investigate the effect of electromagnetic field of a commercial dental light cure device and a common GSM mobile phone on microleakage of amalgam restorations.Ma...

Karimpour Azar , Parvaneh, Saeedi, Ahmad, Shapouri, Sudabeh, Zarei, Hajar ,

The term "electromagnetic fields" (EMF) is a combination of electric and magnetic fields as a diagnostic method as well as a therapeutic tool with many advantages such as ease of operation and painlessness, very controllable, which today has found wide application in regenerative medicine and also cancer treatment.  In addition to organs such as nerves, hearts, and bones that have an electrica...

Journal: :Clinical Orthopaedics & Related Research 2008

Journal: :iranian journal of veterinary science and technology 0
katayoon nofouzi najmeh sheikhzadeh davood mohamad-zadeh jassur javad ashrafi helan amir ali shahbazfar amir tukmechi

for many years it was believed that extremely lowfrequency electromagnetic field (elf-emf) do not have any significant biological effects. in this study, the influence of extremely low-frequency electromagnetic fields on the growth performance, serum antioxidant power and gastrointestinal structure of rainbow trout were evaluated. rainbow trout (17-18 g) were exposed to electromagnetic fields (...

Journal: :iranian journal of medical physics 0
jian sun department of neurosurgery, southwest hospital, third military medical university, no.29 gaotanyanzheng street, shapingba district, chongqing 400038, china gui jin college of biomedical engineering, third military medical university, no. 30 gaotanyanzheng street, shapingba district, chongqing 400038, china gen li college of bioengineering, chongqing university, no. 174 shazheng street, shapingba district, chongqing40044, china yujie chen department of neurosurgery, southwest hospital, third military medical university, no.29 gaotanyanzheng street, shapingba district, chongqing 400038, china mingxin qin college of biomedical engineering, third military medical university, no. 30 gaotanyanzheng street, shapingba district, chongqing 400038, china

introduction measuring magnetic induction phase shift (mips) changes as a function of cerebral hemorrhage volume has the potential for being a simple method for primary and non-contact detection of the occurrence and progress of cerebral hemorrhage. our previous mips study showed that the intracranial pressure (icp) was used as a contrast index and found the primary correlation between mips and...

Journal: :iranian journal of radiation research 0
s.a. falahati department of medical physics, shahid sadoughi university of medical sciences, yazd, iran m. anvari department of biology and anatomical sciences, research and clinical center for infertility, shahid sadoughi university of medical sciences, yazd, iran m.a. khalili department of biology and anatomical sciences, research and clinical center for infertility, shahid sadoughi university of medical sciences, yazd, iran

background: in previous investigations, it has been clarified that electromagnetic fields (elf) can cause some changes in cellular behavior. the aim of this prospective study was to investigate the effect of magnetic field (mf) on human sperm parameters of motility, morphology, and viability. materials and methods: semen samples were collected from 12 fertile men, and were allowed to liquefy fo...

ژورنال: آبزیان زینتی 2019

The objective of this paper is to survey the results of studies on the biological effects of electromagnetic fields on fish. First, the basic concepts of electromagnetism and electromagnetic spectrum and the importance of studying it in the case of fish are discussed. Then a summary of the results obtained on the effects of extremely low frequency electromagnetic fields (ELF-EMFs) and radiofreq...

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