نتایج جستجو برای: electromagnetic fields emfs

تعداد نتایج: 307315  

Journal: :Archives of Environmental Health: An International Journal 2001

2012
I. Verginadis A. Velalopoulou I. Karagounis Y. Simos

In the last three decades, a large number of studies have been arisen, which dealt with the effects of electromagnetic fields (EMFs) in biological systems (Aaron & Ciombor, 1993; Tao & Henderson, 1999; Tofani et al., 2002b; Walker et al., 2007). The EMFs have been used in very important technological applications that concern in diagnosis (e.g. MRI, X-rays, CT). A part of scientific community t...

2013
Artacho-Cordón Francisco Salinas-Asensio María del Mar Calvente Irene Ríos-Arrabal Sandra León Josefa Román-Marinetto Elisa Olea Nicolás Núñez María Isabel

One of the main goals in radiobiology research is to enhance radiotherapy effectiveness without provoking any increase in toxicity. In this context, it has been proposed that electromagnetic fields (EMFs), known to be modulators of proliferation rate, enhancers of apoptosis and inductors of genotoxicity, might control tumor recruitment and, thus, provide therapeutic benefits. Scientific evidenc...

2013
Maria Tiikkaja Aapo L. Aro Tommi Alanko Harri Lindholm Heli Sistonen Juha E.K. Hartikainen Lauri Toivonen Jukka Juutilainen Maila Hietanen

BACKGROUND Cardiac pacemakers are known to be susceptible to strong electromagnetic fields (EMFs). This in vivo study investigated occurrence of electromagnetic interference with pacemakers caused by common environmental sources of EMFs. METHODS Eleven volunteers with a pacemaker were exposed to EMFs produced by two mobile phone base stations, an electrically powered commuter train, and an ov...

Journal: :Journal of Ayub Medical College, Abbottabad : JAMC 2009
Nusrat Zareen Muhammad Yunus Khan Liaqat Ali Minhas

BACKGROUND The possible adverse effects of Electromagnetic Fields (EMFs) emitted from mobile phones present a major public concern today. Some studies indicate EMFs effects on genes, free radical production, immunological and carcinogenic effects. On the other hand there are studies which do not support the hypothesis of any biological impacts of EMFs. This study was designed to observe the eff...

2012
Leila Roshangar Jafar Soleimani Rad

Human beings are unavoidably exposed to ambient electromagnetic fields (EMFs) generated by every instrument that uses electricity. Electromagnetic fields are made by the combination of an electric field and a magnetic field and is propagated in a wave like manner. Thus sometimes called electromagnetic waves and or electromagnetic radiation. Under such condition the indoor and outdoor environmen...

Journal: :FASEB journal : official publication of the Federation of American Societies for Experimental Biology 1998
A Lacy-Hulbert J C Metcalfe R Hesketh

Electrification in developed countries has progressively increased the mean level of extremely low-frequency electromagnetic fields (ELF-EMFs) to which populations are exposed; these humanmade fields are substantially above the naturally occurring ambient electric and magnetic fields of approximately 10(-4) Vm(-1) and approximately 10(-13) T, respectively. Several epidemiological studies have c...

The radiofrequency electromagnetic fields (RF-EMFs) produced by widely used mobile phones are classified as possibly carcinogenic to humans by International Agency for Research on Cancer (IARC). Current data on the relationship between exposure to RF-EMFs generated by commercial mobile phones and brain cancer are controversial. Our studies show that this controversy may be caused by several par...

2016
V. Kalantaryan R. Martirosyan Y. Babayan L. Nersesyan H. Stepanyan R. Vardapetyan

Unlike now widely used traditional methods of treatment of tumors by means of ionizing radiation and the chemotherapy, the method of the use of low intensity electromagnetic fields (EMF) is non-ionizing and non-invasive and hence is completely deprived of any harmful side effects. The present study was undertaken to investigate whether millimeter range EMFs can suppress tumor cells growth in vi...

Journal: :Reviews on environmental health 2013
David O Carpenter

Electromagnetic fields (EMFs) include everything from cosmic rays through visible light to the electric and magnetic fields associated with electricity. While the high frequency fields have sufficient energy to cause cancer, the question of whether there are human health hazards associated with communication radiofrequency (RF) EMFs and those associated with use of electricity remains controver...

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