نتایج جستجو برای: emf

تعداد نتایج: 2456  

2011
Yury Grigoriev

Today world population lives in a new electromagnetic environment, characterized with (i) around the clock enforcement of chronic exposure of all age and gender groups to a wide range of modulated electromagnetic fields (EMF) from base stations; (ii) daily, repeated from early childhood throughout entire life exposure to EMF RF mobile phone the brain and vestibular receptor apparatus and audito...

Journal: :ECEASST 2013
Sabine Winetzhammer Bernhard Westfechtel

Model-driven software engineering aims at increasing productivity by developing high-level executable models. The Eclipse Modeling Framework (EMF) significantly contributes toward this goal. Unfortunately, EMF supports only structural models based on the Ecore metamodel. Recently, Xcore has been developed to extend EMF with behavioral modeling. To this end, Xcore provides a single textual langu...

Journal: :TheScientificWorldJournal 2004
George Demsia Dimitris Vlastos Demetrios P Matthopoulos

Aiming to investigate the possibility of electromagnetic fields (EMF) developed by nonionizing radiation to be a noxious agent capable of inducing genotoxicity to humans, in the current study we have investigated the effect of 910-MHz EMF in rat bone marrow. Rats were exposed daily for 2 h over a period of 30 consecutive days. Studying bone marrow smears from EMF-exposed and sham-exposed animal...

Journal: :Carcinogenesis 2000
R M Ansari T K Hei

There is considerable uncertainty of the potential biological effects of extremely low frequency magnetic fields (ELF-MF or EMF) because of mixed results in epidemiological and laboratory studies. In the present study, exponentially growing human-hamster hybrid A(L) cells were treated with a 100 microT alternating EMF powered at 60 Hz for either 24 h or 7 days. Exposure to EMF was conducted eit...

2017
Ju Hwan Kim Da-Hyeon Yu Hak Rim Kim

With the explosive increase in exposure to radiofrequency electromagnetic fields (RF-EMF) emitted by mobile phones, public concerns have grown over the last few decades with regard to the potential effects of EMF exposure on the nervous system in the brain. Many researchers have suggested that RF-EMFs can effect diverse neuronal alterations in the brain, thereby affecting neuronal functions as ...

Journal: :Journal of cellular physiology 2008
Isaac George Matthew S Geddis Zachary Lill Hana Lin Teodoro Gomez Martin Blank Mehmet C Oz Reba Goodman

Studies on myocardial function have shown that hsp70, stimulated by an increase in temperature, leads to improved survival following ischemia-reperfusion (I-R). Low frequency electromagnetic fields (EMFs) also induce the stress protein hsp70, but without elevating temperature. We have examined the hemodynamic changes in concert with EMF pre-conditioning and the induction of hsp70 to determine w...

2017
Ju Hwan Kim Da-Hyeon Yu Yang Hoon Huh Eun Ho Lee Hyung-Gun Kim Hak Rim Kim

Radiofrequency electromagnetic field (RF-EMF) is used globally in conjunction with mobile communications. There are public concerns of the perceived deleterious biological consequences of RF-EMF exposure. This study assessed neuronal effects of RF-EMF on the cerebral cortex of the mouse brain as a proxy for cranial exposure during mobile phone use. C57BL/6 mice were exposed to 835 MHz RF-EMF at...

Journal: :Pathophysiology : the official journal of the International Society for Pathophysiology 2009
Martin Blank Reba Goodman

Electromagnetic fields (EMF), in both ELF (extremely low frequency) and radio frequency (RF) ranges, activate the cellular stress response, a protective mechanism that induces the expression of stress response genes, e.g., HSP70, and increased levels of stress proteins, e.g., hsp70. The 20 different stress protein families are evolutionarily conserved and act as 'chaperones' in the cell when th...

2016
Amir Afshin Khaki Arash Khaki Seyed Shahin Ahmadi

BACKGROUND Recently, there are increasing concerns and interests about the potential effects of Electromagnetic Field (EMF) on both human and animal health. OBJECTIVE The goal of this study was to evaluate the harmful effects of 50 Hz non-ionizing EMF on rat oocytes. MATERIALS AND METHODS In this experimental study 30 rats were randomly taken from laboratory animals and their ags and weight...

2015
The Hong Phong Nguyen Yury Shamis Rodney J. Croft Andrew Wood Robert L. McIntosh Russell J. Crawford Elena P. Ivanova

The effect of electromagnetic field (EMF) exposures at the microwave (MW) frequency of 18 GHz, on four cocci, Planococcus maritimus KMM 3738, Staphylococcus aureus CIP 65.8(T), S. aureus ATCC 25923 and S. epidermidis ATCC 14990(T), was investigated. We demonstrate that exposing the bacteria to an EMF induced permeability in the bacterial membranes of all strains studied, as confirmed directly b...

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