نتایج جستجو برای: electromagnetic fields emfs

تعداد نتایج: 307315  

2016
Ahmad Ali Ghanbari Kobra Shabani Daryoush Mohammad Nejad

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...

Journal: :Indian journal of experimental biology 2004
Maryam Shams Lahijani Kazem Sajadi

The effects of applying extremely low-frequency (50 Hz) electromagnetic fields (ELF-EMF) for 24 hr and different densities (1.33-7.32 mT) were examined on healthy, freshly fertilized white leghorn chicken eggs (55-65 g). Results showed no increase in the rate of abnormalities in exposed groups, but were only significant in 4.19, 5.32 and 5.86, 6.65 mT densities. Alizarin red S and alcian blue 8...

2013
Ravindra Tiwari Suresh Chandra Bhargava Yog Raj Ahuja

Electricity substations take electricity from power lines and transformer lines to transform it from high to low voltage and distribute to the consumers. These substations generate low frequency electromagnetic fields similar to those emitted from over head power lines and electrical appliances at home. The present study is focused on assessing the potential bioeffects of Extremely Low Frequenc...

2017
Dan Zhang Yang Zhang Baoyu Zhu He Zhang Ye Sun Chengxun Sun

High-voltage electricity lines are known to generate extremely low-frequency electromagnetic fields (ELF-EMFs). With the process of urbanization, increasing concerns has been focused on the potentially hazardous impacts of ELF-EMF on human health, and the conclusions are controversial. Little is known about the method of prevention against ELF-EMF induced healthy problems. A total of 186 male w...

Journal: :Brain research 2002
Andrew A Marino Erik Nilsen Clifton Frilot

The reports dealing with the effects of electromagnetic fields (EMFs) on brain electrical activity have been inconsistent. We suspected that the use of linear methods and models accounted for some of the variability, and we explored the issue by using a novel approach to study the effects of EMFs on the electroencephalogram (EEG) from rabbits. The EEG was embedded in phase space and local recur...

Journal: :Journal of alternative and complementary medicine 2016
Richard Brown

OBJECTIVES The aim of this study was to determine if grounding in the presence of electromagnetic fields (EMFs) encountered in a normal housing environment produces harmful currents in the human body. DESIGN This study had a test-retest design, with duration of 5-15 min per participant. PARTICIPANTS There were 50 participants, of whom 23 were males aged 12-77 years (Mage ± standard deviatio...

2010
NK Lakshmi R Tiwari SC Bhargava YR Ahuja

The potential effect of electromagnetic fields (EMFs) emitted from video display terminals (VDTs) to elicit biological response is a major concern for the public. The software professionals are subjected to cumulative EMFs in their occupational environments. This study was undertaken to evaluate DNA damage and incidences of micronuclei in such professionals. To the best of our knowledge, the pr...

2012
Ahmed Hossam ElDin Ahmed Farag Ibrahim Madi Hanaa Karawia

In our modern society electricity is vital to our health, safety, comfort and well-being. While our daily use of electricity is often taken for granted, public concern has arisen about potential adverse health effects from electric and magnetic – electromagnetic – fields (EMFs) produced by our use of electricity. This paper aims to compare between the measured magnetic field values and the simu...

2013
Qingsong Chen Li Lang Wenzhe Wu Guoyong Xu Xiao Zhang Tao Li Hanlin Huang

OBJECTIVE To comprehensively analyze the relationship between exposure to extremely low frequency electromagnetic fields (ELF-EMFs) and the development of female breast cancer. METHODS Reports of case-control studies published from 1990 to 2010 were analyzed. The quality effect model was chosen to calculate total odds ratio (OR) depending on the data in studies and quality scores. Subgroup an...

Journal: :Journal of Investigative Dermatology 2022

Extremely low frequency electromagnetic fields (ELF-EMFs) are non-ionizing, low-energy, fields, capable of inducing biological effects such as cell migration, proliferation and differentiation, cytokine growth factors expression, NO signaling alteration. In vitro experiments have shown an interaction ELF-EMFs with all the phases wound healing. This in knowledge could be applied clinical practic...

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