نتایج جستجو برای: electromagnetic fields

تعداد نتایج: 307264  

Journal: :تحقیقات نظام سلامت 0
سمیه بلقن آبادی دانشجوی کارشناسی ارشد گروه مهندسی بهداشت حرفه ای، دانشکده بهداشت، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران حسینعلی یوسفی مربی، عضو هیأت علمی گروه مهندسی بهداشت حرفه ای، دانشکده بهداشت، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران حبیب اله دهقان استادیار، عضو هیأت علمی، گروه مهندسی بهداشت حرفه ای، دانشکده بهداشت، دانشگاه علوم پزشکی اصفهان، ایران

background: with increased use of computers, exposure to electric and magnetic fields is increasing, the main objective of this study was to evaluate the electric and magnetic field strength in portable computers (laptops) and its relation with eyestrain users. methods: in this cross – sectional study, magnetic and electric fields in 125 laptop computers were measured from 30 cm and 50 cm dista...

Journal: :international journal of reproductive biomedicine 0
parvin-dokht bayat mohmmad reza darabi ali ghanbari sara amiri pardis sohouli

background: indisputable population exposure to widespread electromagnetic fields, has grown concerns over the probable health effects of these fields. objective: the present study was aimed to examine the possible effects of 50 hz extremely low frequency electromagnetic field (elf-emf) exposure on the number and quality of mice blastocysts. materials and methods: in present study, 66 nmri preg...

Journal: :journal of basic research in medical sciences 0
ali louei monfared department of basic sciences, faculty of para-veterinary medicine, university of ilam, ilam, iran. aaref nooraii department of basic sciences, faculty of para-veterinary medicine, university of ilam, ilam, iran. morteza shamsi ilam medical university, ilam, iran

introduction: there are general concerns about the hazardous impacts of the cell phones radiation on the human health. in this study, the structural and biochemical changes of the mice kidney were assessed after cell phone exposure in. materials and methods: a total of 40 balb/c mice were randomly divided into the control and experimental groups. the experimental group exposed to cell phone dev...

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: :international journal of reproductive biomedicine 0
amir afshin khaki arash khaki shahram garachurlou fereshteh khorshidi nazila tajadini navid madinei

background: men are unavoidably exposed to ambient electromagnetic fields (emf) generated from various electrical gadgets and from power transmission lines. prostate gland plays an important role in secretion of semen as largest accessory gland of male reproductive system. it seems that protection of this gland against emf is important in spermatogenesis process. objective: the goal of this stu...

Journal: :journal of basic research in medical sciences 0
ali louei monfared 1. department of anatomical sciences, faculty of para-veterinary medicine, university of ilam, ilam, iran. aaref nooraii msc student of veterinary histology, faculty of veterinary medicine, university of urmia, urmia,iran morteza shamsi phd student of parasitology, ilam medical university, ilam, iran

introduction: the use of cell phones is widespread and there are public concerns regarding its possible deleterious effects on human health especially on the pregnancy outcomes. in this study, structural changes of the placenta after applying the cell phone radiation were examined in the mice model.   materials and methods: for this work, 40 pregnant balb/c mice were randomly allocated to one c...

In this research, the effects of electromagnetic fields of various strengths (0, 1 and 2mT) have been investigated on antioxidant enzymes activity in Valerian (Valeriana officinalis L.). The dry and wet (soaked for 30 min) Valerian seeds were exposed to electromagnetic fields 30 min per day for 3 days. Each treatment and control groups had 3 replicates and 10 seeds were employed for each replic...

Journal: :jundishapur journal of health sciences 0
behzad fouladi dehaghi department of occupational health, school of public health, ahvaz jundishapur university of medical sciences, ahvaz, ir iran; department of occupational health, school of public health, ahvaz jundishapur university of medical sciences, ahvaz, ir iran. tel/fax: +98-6113738282 alireza ghamar department of occupational health, school of public health, ahvaz jundishapur university of medical sciences, ahvaz, ir iran seyed mahmood latifi department of bio-statistics, school of public health, ahvaz jundishapur university of medical sciences, ahvaz, ir iran

conclusions the study results are indicative of the impact of electromagnetic fields on computer users’ health, and it is thus advisable to avoid leaving computers switched on unnecessarily in addition to observing the minimum distance of 60 cm from computer monitors to control the adverse effects of electromagnetic fields. materials and methods electric and magnetic field intensities were meas...

, حیات غیبی, حسین, زارع, صمد, علی وندی, ساناز,

Developing technology and industry and increasing application of electromagnetic fields in medicine, threaten the environment and human health. Biological effects of these fields depend on the field magnitude and physical characteristics of exposed tissue. In order to research the effects of electromagnetic fields on kidney tissue on electromagnetic field generator was made with intensities of ...

A Rafati A Soleimani, A Talebi S Rahimi SMJ Mortazavi,

Introduction: The rapid development of wireless telecommunication technologies over the past decades, has led to significant changes in the exposure of the general public to electromagnetic fields. Nowadays, people are continuously exposed to different sources of electromagnetic fields such as mobile phones, mobile base stations, cordless phones, Wi-Fi routers, and power lines. Therefore, th...

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