نتایج جستجو برای: 12 hz electromagnetic

تعداد نتایج: 688376  

Journal: :journal of lasers in medical sciences 0
amin rostami faculty of paramedical sciences, shahid beheshti university of medical sciences, tehran, iran minoo shahani proteomics research center, shahid beheshti university of medical sciences, tehran, iran mohammad reza zarrindast department of pharmacology, tehran university of medical sciences, tehran, iran saeed semnanian department of physiology, school of medical sciences, tarbiat modarres university, tehran, iran mohammad rahmati roudsari skin research center, shahid beheshti university of medical sciences, tehran, iran mostafa rezaei tavirani

introduction: the effects of electromagnetic fields on biological organisms have been a controversial and also interesting debate over the past few decades, despite the wide range of investigations, many aspects of extremely low frequency electromagnetic fields (elf/emfs) effects including mechanism of their interaction with live organisms and also their possible biological applications still r...

H. Mozdarani, M. Rezaei Tavirani, S. Heydari, S.S. Seyyedi,

Background: Rapidly increasing possibilities of exposure to environmental extremely low-frequency electromagnetic fields (ELF-EMF) have become a topic of worldwide investigation. Epidemiological and laboratory studies suggest that exposure to ELF-EMF may increase cancer risk therefore assessment of chromosomal damage in various cell lines might be of predictive value for future risk es...

Journal: :Journal of Sleep Research 1999

Journal: :international journal of environmental research 2014
b.s. maluckov v. tasić s. alagić s. mladenović j.t. pejković

in this paper are present the results of measurements of magnetic induction at some locationsin city bor (the east serbia) dating from the household electric devices and transformer stations suited near the residental areas. stress is on the extremely low frequent electromagnetic radiation from transformer stations and other high voltage instalations in urban areas. risk of the extremely low fr...

Journal: :Orthopedics 2012
Fei Luo Tianyong Hou Zehua Zhang Zhao Xie Xuehui Wu Jianzhong Xu

The purpose of this study was to evaluate the effect of different frequencies of pulsed electromagnetic fields on the osteogenic differentiation of human mesenchymal stem cells. Third-generation human mesenchymal stem cells were irradiated with different frequencies of pulsed electromagnetic fields, including 5, 25, 50, 75, 100, and 150 Hz, with a field intensity of 1.1 mT, for 30 minutes per d...

ژورنال: یافته 2019

Background: Electromagnetic fields have various effects on the biochemical and cellular behavior of microorganisms due to radiation. It is necessary to investigate more extensively the effects of these magnetic fields on some microorganisms, such as bacteria. The purpose of this study was tp investigate the effects of magnetic fields on Escherichia coli bacteria (PTCC 1330). Materials and Meth...

Journal: :Indian journal of experimental biology 2001
K Hoffmann F Bagorda A F Stevenson G Teuchert-Noodt

The chronic effect on hippocampal neurogenesis after exposure (30 min/day for 14 days) to a high frequency (35,53 kHz) electromagnetic field, double modulated at extremely low frequencies (ELF; 1, 8, 12, 29 and 50 Hz), was studied in young adult gerbils. Immediately after the last exposure proliferation of dentate granule cells was identified by in vivo labeling with 5-bromo-2-desoxyuridine (Br...

Background: Many studies have shown that electromagnetic field (EMFs) decrease anxiety. In this study we studied the effect of low frequency electromagnet fields on decreasing the induced anxiety by histamine in mice. Methods: 32 male albino mice at the weight of 30gr were classified in 4 groups (n=8), and were injected histamine (5mg/kg) 3 group of them were exposed to electromagnetic field...

Journal: :veterinary research forum 2012
ehsan hosseini saeed nafisi samad zare

the main goal of this study was to evaluate the possible effect of whole-body magnetic field(mf) exposure on the variations of corticosterone, free-t3, free-t4 and malonyl dialdehyde inplasma in 48 adult white new zealand male rabbits. animals were divided into six groups namely,c1 (normal diet, not exposed), c2 (normal diet, sham exposed), t1 (normal diet, exposed toelectromagnetic field), c3 ...

Journal: :iranian biomedical journal 0
شهین احمدیان shahin ahmadian سعید رضایی زارچی saeed rezaei zarchi بهرام بلوری bahram bolouri

the efficacious effects of pulsed electromagnetic field (pemf) under the certain field parameters like frequency and the field intensity have been reported for various tissue and molecules. since collagen is found abundantly in most tissue structures, this research was designed to further investigate the effects of extremely low frequency (elf) pemf on the synthesis of the epidermal collagen. t...

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