نتایج جستجو برای: electromagnetic field emf

تعداد نتایج: 843840  

Journal: :Neuroreport 2000
R Huber T Graf K A Cote L Wittmann E Gallmann D Matter J Schuderer N Kuster A A Borbély P Achermann

The aim of the study was to investigate whether the electromagnetic field (EMF) emitted by digital radiotelephone handsets affects brain physiology. Healthy, young male subjects were exposed for 30 min to EMF (900 MHz; spatial peak specific absorption rate 1 W/kg) during the waking period preceding sleep. Compared with the control condition with sham exposure, spectral power of the EEG in non-r...

Journal: :PLoS ONE 2009
Michael Landgrebe Ulrich Frick Simone Hauser Goeran Hajak Berthold Langguth

BACKGROUND Tinnitus is a frequent condition with high morbidity and impairment in quality of life. The pathophysiology is still incompletely understood. Electromagnetic fields are discussed to be involved in the multi-factorial pathogenesis of tinnitus, but data proofing this relationship are very limited. Potential health hazards of electromagnetic fields (EMF) have been under discussion for l...

A. Ikinci Keles, C. Guven, E. Odaci, E. Taskin, F.M. Gur, H. Kaya, H.E. Gur, H.S. Erol, M.B. Halici, S. Timurkaan,

Background: Mobile phones as an electronic device which are emitting radiofrequency-electromagnetic field (RF-EMF). In this study was intend to determine the contingent effects of cell phone induced RF-EMF on testicular tissue in adolescence. Materials and Methods: Rats in the RF-EMF group were exposed to 900 MHz RF-EMF, while sham and control rats were not. After the completion of the test ste...

Gharamaleki H Parivar K Roshangar L, Soleimani Rad J Valipoor A

Background: The effect of electromagnetic field (EMF) as an environmental factor on different organs including female reproductive system is of critical concern. In view of the fact that embryo fetuses and young, growing animals are more susceptible to any xenobiotic during gestational and lactation stages of gonadal development may it lead to permanent damage to the gonads. The early phases of...

Journal: :iranian journal of public health 0
zhen ding jintao li fan li mohammadreza mohammadzad mephryar shuicai wu chen zhang

background: the extremely low-frequency electromagnetic field (elf-emf), mainly emitted by electric transmission lines and household electronic appliances, is becoming a worldwide health risk. it is imperative to investigate the biological impacts of elf-emf and to identify products that are resistant to the radiation from 50 hz elf-emf. in this study, we investigated the biological impacts of ...

Journal: :Journal of psychosomatic research 2010
Amanda Johansson Steven Nordin Marina Heiden Monica Sandström

OBJECTIVE Some people report symptoms that they associate with electromagnetic field (EMF) exposure. These symptoms may be related to specific EMF sources or to electrical equipment in general (perceived electromagnetic hypersensitivity, EHS). Research and clinical observations suggest a difference between mobile phone (MP)-related symptoms and EHS with respect to symptom prevalence, psychologi...

2008
Farzad Rajaei Mehdi Farokhi Ali Asghar Pahlevan

Background: Considerable attention is focused on effects of electromagnetic field (EMF) and its increasing use in everyday life. Appliances and various equipments are sources of electromagnetic fields with a wide-range of technical characteristics. Objective: In this study we investigated the effect of EMF (50 Hz, 0.5 mT) on epididymis and deferens duct in mice. Materials and Methods: 30 BALB/C...

2014
Henry Lai

Purpose: One of the most important issues regarding radio frequency electromagnetic fields (RF‐EMF) is their effect on genetic material. Therefore, we investigated the cytogenotoxic effects of 900 MHz radio frequency electromagnetic fields (RF‐EMF) and the effect of a recovery period after exposure to RF‐EMF on bone marrow cells of immature and mature rats. Materials and methods: The immature a...

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...

2010
Hamid Tayefi Amac Kiray Muge Kiray Bekir Ugur Ergur Husnu Alper Bagriyanik Cetin Pekcetin Mustafa Fidan Candan Ozogul

INTRODUCTION Electromagnetic fields (EMF) have adverse effects as a result of widespread use of electromagnetic energy on biological systems. The aim of this study was to investigate the effects of prenatal exposure to EMF on rat myocardium by biochemical and histopathological evaluations. MATERIAL AND METHODS In this study, 10 pregnant Wistar rats were used. Half of the pregnant rats were ex...

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