نتایج جستجو برای: electromagnetic field emf

تعداد نتایج: 843840  

2002
Eugeniusz Grudzinski Hubert Trzaska

The Lab is involved in the electromagnetic field (EMF) measurements. EMF standards were here indispensable tools in metrological experiments. Many of the standards found an application as exposure systems in EMC and in biomedical studies. The research in the field is of threefold character, i.e.: new methods of standardization, analysis and increase of the standards accuracy and widening their ...

2015
Yue Zhao

Recent development in the field of quantum biology highlights that the intracellular electromagnetic field (EMF) of microtubules plays an important role in many fundamental cellular processes such as mitosis. Here I propose an intriguing hypothesis that centrosome functions as molecular dynamo to generate electric flow over the microtubules, leading to the electric excitation of microtubule EMF...

2014
Giorgio Fedele Edward W. Green Ezio Rosato Charalambos P. Kyriacou

Many higher animals have evolved the ability to use the Earth's magnetic field, particularly for orientation. Drosophila melanogaster also respond to electromagnetic fields (EMFs), although the reported effects are quite modest. Here we report that negative geotaxis in flies, scored as climbing, is disrupted by a static EMF, and this is mediated by cryptochrome (CRY), the blue-light circadian p...

Journal: :Bioelectromagnetics 2010
G James Rubin Rosa Nieto-Hernandez Simon Wessely

Idiopathic Environmental Intolerance attributed to electromagnetic fields (IEI-EMF; formerly 'electromagetic hypersensitivity') is a medically unexplained illness in which subjective symptoms are reported following exposure to electrical devices. In an earlier systematic review, we reported data from 31 blind provocation studies which had exposed IEI-EMF volunteers to active or sham electromagn...

Journal: :Electromagnetic biology and medicine 2014
Martina G Vijver John F B Bolte Tracy R Evans Wil L M Tamis Willie J G M Peijnenburg C J M Musters Geert R de Snoo

Organisms are exposed to electromagnetic fields from the introduction of wireless networks that send information all over the world. In this study we examined the impact of exposure to the fields from mobile phone base stations (GSM 900 MHz) on the reproductive capacity of small, virgin, invertebrates. A field experiment was performed exposing four different invertebrate species at different di...

2016
Hamideh Mahmoudinasab Mostafa Saadat

AIM Extremely low-frequency electromagnetic fields (ELF-EMFs) have some genotoxic effects and it may alter the mRNA levels of antioxidant genes. The NAD(P)H: quinone oxidoreductase-1 (NQO1) and NQO2 are ubiquitously expressed. Considering that there is no published data on the effect(s) of ELF-EMF (50-Hz) exposure and expression levels of NQO1 and NQO2 in the human MCF-7 cells, the present stud...

Journal: :FASEB journal : official publication of the Federation of American Societies for Experimental Biology 2000
M Woods F Bobanovic D Brown D R Alexander

Exposure of B-lineage lymphoid cells to a 100 microT 60 Hz AC magnetic field has been reported to stimulate the rapid activation of Lyn and Syk tyrosine kinases and the induction of protein tyrosine phosphorylation. These findings are significant because of the critical role played by these B cell signaling events in the control of growth and differentiation, and therefore the potential of elec...

2017
Raimondas Buckus Birute Strukčinskienė Juozas Raistenskis Rimantas Stukas Aurelija Šidlauskienė Rimantė Čerkauskienė Dorina Nicolina Isopescu Jan Stabryla Igor Cretescu

During the last two decades, the number of macrocell mobile telephony base station antennas emitting radiofrequency (RF) electromagnetic radiation (EMR) in residential areas has increased significantly, and therefore much more attention is being paid to RF EMR and its effects on human health. Scientific field measurements of public exposure to RF EMR (specifically to radio frequency radiation) ...

ژورنال: Basic and Clinical Neuroscience 2016
Ghanbari, Ahmad Ali, Mohammad Nejad, Daryoush, Shabani, Kobra,

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 antioxida...

Journal: :iranian biomedical journal 0
عباس ابراهیمی کلان abbas ebrahimi-kalan مهریار حبیبی رودکنار mehryar habibi roudkenar راحله حلبیان raheleh halabian پیمان بروکی میلان peiman broki milan آرمین زرین تن armin zarrintan آمنه محمدی روشنده amaneh mohammadi roushandeh

background: it is proved that testis is sensitive to electromagnetic field (emf) and its damage results in infertility. exposure to emf induces reactive oxygen species production and affects on anti-oxidants defense mechanisms. metallothionein (mt) is a name for a group of low molecular weight (6-7 kda), sulfhydryl rich proteins. expression of mt1 and mt2 genes in testis tissue after emf exposu...

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