نتایج جستجو برای: electromagnetic field emf

تعداد نتایج: 843840  

Journal: :PLoS ONE 2007
Barry Nicholls Paul A. Racey

Large numbers of bats are killed by collisions with wind turbines, and there is at present no direct method of reducing or preventing this mortality. We therefore determine whether the electromagnetic radiation associated with radar installations can elicit an aversive behavioural response in foraging bats. Four civil air traffic control (ATC) radar stations, three military ATC radars and three...

Background: Many studies have showed that electromagnetic field decrease anxiety. In this study the objectives: effect of Electromagnet Fields in Low Frequency in Induced Anxiety by formalin. Methods: 32 male mice with weight (30 grams) were classified in 4 groups (n=8), and received Histamine (5mg/kg IP injection) 3classes of every group exposed to electromagnetic field (emfs) with25, 50, 75 H...

2014
Ravinder Kumar Kohli Upma Bagai

The countless increase in towers and mobile phones has increased the amount of non-ionizing radio waves in surroundings during last two decades. Several reports have revealed non-desirable after effects of mobile phone frequency electromagnetic field radiations at cellular level. Thus, the present study was designed to evaluate the effect of cellphone frequency electromagnetic field (EMF) radia...

2001
X. R. Wang Gang Xiong Shi-Dong Wang

We point out that the central theme in the paper by Wang, Xiong, and Wang @Phys. Rev. B 61, R5090 ~2000!# is the inseparability of electron degrees of freedom and those of electromagnetic field ~EMF!. The dephasing of conduction electrons due to zero-point fluctuation ~ZPF! of EMF is because experiments probe electron degrees of freedom only. The treatment of ZPF of EMF in the above paper is ov...

Journal: :International journal of occupational medicine and environmental health 2014
Krzysztof Pawlak Andrzej Sechman Zenon Nieckarz

INTRODUCTION This study attempted to determine the effect of a 1800 MHz electromagnetic field (EMF) (only carrier frequency) on thyroxine (T4), triiodothyronine (T3) and corticosterone (CORT) concentrations in the blood plasma of chick embryos, and to investigate the effect of electromagnetic field (EMF) exposure during embryogenesis on the level of these hormones in birds that are ready for sl...

Journal: :iranian journal of basic medical sciences 0
majid jadidi department of medical physics, school of medicine, semnan university of medical sciences, semnan, iran saeed moghadas biat research center of nervous system stem cells, department of anatomy, school of medicine, semnan university of medical sciences, semnan, iran hamid reza sameni research center of nervous system stem cells, department of anatomy, school of medicine, semnan university of medical sciences, semnan, iran manouchehr safari research center of nervous system stem cells, department of anatomy, school of medicine, semnan university of medical sciences, semnan, iran abbas ali vafaei department of physiology, school of medicine, semnan university of medical sciences, semnan, iran laya ghahari department of anatomy, school of medicine, aja medical university, tehran, iran

objective(s): the main characteristic of mesenchymal stem cells (mscs) is their ability to produce other cell types. electromagnetic field (emf) stimulates differentiation of mscs into other cells. in this study, we investigated whether emf can effect on the differentiation of mscs into dopaminergic (da) neurons. materials and methods: an emf with a frequency of 50 hz and two intensities of 40 ...

2015
Christina L. Ross Benjamin S. Harrison

Interest in electromagnetic field (EMF) treatments has increased rapidly in recent years due to its advantages over other treatments for tissue healing and infection. Benefits include low-cost, ready availability, ease of localized application, few if any sideeffects, and indefinite shelf life. Immunological studies show that low-intensity EMF can interact with cells and tissues, providing a la...

2016
Kang-Wei Lin Chuan-Jun Yang Hui-Yong Lian Peng Cai

In this study, we investigated the transcriptional response to 50 Hz extremely low frequency electromagnetic field (ELF-EMF) and 2.0 GHz radio frequency electromagnetic field (RF-EMF) exposure by Illumina sequencing technology using budding yeast as the model organism. The transcription levels of 28 genes were upregulated and those of four genes were downregulated under ELF-EMF exposure, while ...

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...

2016
BETTINA HIEMER JOSEFIN ZIEBART ANIKA JONITZ-HEINCKE PHILIP CHRISTIAN GRUNERT YUKUN SU DORIS HANSMANN RAINER BADER

The application of electromagnetic fields to support the bone-healing processes is a therapeutic approach for patients with musculoskeletal disorders. The ASNIS-III s-series screw is a bone stimulation system providing electromagnetic stimulation; however, its influence on human osteoblasts (hOBs) has not been extensively investigated. Therefore, in the present study, the impact of this system ...

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