نتایج جستجو برای: electromagnetic field emf
تعداد نتایج: 843840 فیلتر نتایج به سال:
The potential health risks of exposure to high frequency electromagnetic fields (HF-EMF) associated with mobile telephony have become a great public concern. One area of particular interest relates to the ability of HF-EMF to induce a cellular stress response, which could conceivably cause alterations in cell physiology. Our research group evaluated different biological endpoints in cells expos...
BACKGROUND The rapid development of a variety of devices that emit Radiofrequency Electromagnetic fields (RF-EMF) has sparked growing interest in their interaction with biological systems and the beneficial effects on human health. As a result, investigations have been driven by the potential for therapeutic applications, as well as concern for any possible negative health implications of these...
INTRODUCTION Idiopathic Environmental Intolerance (IEI) attributed to electromagnetic fields (EMF) refers to self-reported sensitivity mainly characterised by the attribution of non-specific physical symptoms to low-level EMF exposure emitted from sources such as mobile phones. Scientific studies have not provided evidence for the existence of IEI-EMF, but these studies did not resemble the rea...
Electromagnetic field (EMF) radiation exerts both stand-alone and combined effects on biological systems. The present study examines the scope of the combined effects; i.e., identify effects on biological systems from combined exposure to electromagnetic fields/radiation and at least one other agent. Only articles in which the presence of EMF had some effect (beneficial or adverse) on the biolo...
INTRODUCTION Electromagnetic fields (EMFs) can influence the biological system by the formation of free radicals in cells. The EMFs are able to deteriorate defense system against free radicals that leads to oxidative stress (OS). Lipid peroxidation process (LPO) is an index of oxidative stress, and the Malandialdehyde (MDA) is the final product of LPO. Vitamin E is the most important antioxidan...
Pulse-modulated radiofrequency electromagnetic fields (RF EMF) can alter brain activity during sleep; increases of electroencephalographic (EEG) power in the sleep spindle (13.75-15.25 Hz) and delta-theta (1.25-9 Hz) frequency range have been reported. These field effects show striking inter-individual differences. However, it is still unknown whether individual subjects react in a similar way ...
As to the long standing debate about whether EMFs can cause cancer, researchers hope this study will add to the already substantial body of evidence. The most extensive study to date, released in late October by the National Resource Council, found no conclusive evidence that EMFs cause cancer. A team of EMF specialists will use a special meter to take spot measurements on electromagnetic field...
In this paper, electromagnetic field (EMF) distributions excited by mobile radio inside an aircraft cabin are analyzed and propagation characteristics are evaluated based upon the analysis results. Wireless communication devices usage has extended to a wide range of environments such as buses, trains, and aircrafts. Recently, some airlines have begun allowing in-flight voice calls. On the other...
BACKGROUND There is persistent public concern about sleep disturbances due to radiofrequency electromagnetic field (RF-EMF) exposure. The aim of this prospective cohort study was to investigate whether sleep quality is affected by mobile phone use or by other RF-EMF sources in the everyday environment. METHODS We conducted a prospective cohort study with 955 study participants aged between 30...
Environmental electromagnetic fi elds are nowadays available in all environments today. These areas affect the biological system. Controlled interactions with elecrtomagnetic fi elds can have positive effects when unrestricted interactions have negative effects. Uncontrolled exposure to low-frequency electromagnetic fi elds can cause adverse effects such as signal transduction in cells and tiss...
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