نتایج جستجو برای: electromagnetic fields emf

تعداد نتایج: 308273  

Journal: :Journal of neurology, neurosurgery, and psychiatry 2011
Vittorio Colletti Marco Mandalà Paolo Manganotti Stefano Ramat Luca Sacchetto Liliana Colletti

BACKGROUND The rapid spread of devices generating electromagnetic fields (EMF) has raised concerns as to the possible effects of this technology on humans. The auditory system is the neural organ most frequently and directly exposed to electromagnetic activity owing to the daily use of mobile phones. In recent publications, a possible correlation between mobile phone usage and central nervous s...

Journal: :iranian journal of medical physics 0
mehdi roknian m.sc., in health science, tehran university of medical sciences, tehran, iran parvin nassiri professor, health science dept., tehran university of medical sciences, tehran, iran hojat zeraati associate professor, public health science dept., tehran university of medical sciences, tehran, iran mohammad gholami m.d., sepahe eslam makhsus highway, defense industries organization (d.i.o), armament industries group.hadid industries

introduction: it is important that biological and health effects from the induction of currents and fields in the body by extremely low frequency (elf) fields are fully explored to determine the effects produced at the molecular, cellular and organ levels. the objective of this study was to evaluate the intensity of elf electromagnetic fields and its probable relationship with hematological cha...

Journal: :Experimental and toxicologic pathology : official journal of the Gesellschaft fur Toxikologische Pathologie 2014
Mony Shuvy Suzan Abedat Ronen Beeri Michael Valitzki Yael Stein Karen Meir Chaim Lotan

BACKGROUND The effects of electromagnetic fields (EMFs) on cardiovascular calcification is unknown. We sought to evaluate the effects of EMF on vascular calcification in normal rats and in rats with chronic kidney disease (CKD) - a condition which promotes calcification. METHODS We used four groups of rats: group 1 - exposed to EMF, group 2 - not exposed to EMF, group 3 - rats with CKD expose...

Journal: :Physiological and biochemical zoology : PBZ 2000
K J Fernie D M Bird R D Dawson P C Laguë

Reduced reproductive success of birds nesting near power lines has been documented but never directly attributed to electromagnetic fields (EMFs). Laboratory studies have identified EMF effects on embryonic development, but reproductive success of wild birds is dependent on additional factors, including fertility, egg size, hatching, and fledging success. We tested whether EMFs affect reproduct...

2015
Rafael A. Baraúna Agenor V. Santos Diego A. Graças Daniel M. Santos Rubens Ghilardi Adriano M. C. Pimenta Marta S. P. Carepo Maria P.C. Schneider Artur Silva

Several studies of the physiological responses of different organisms exposed to extremely low-frequency electromagnetic fields (ELF-EMF) have been described. In this work, we report the minimal effects of in situ exposure to ELF-EMF on the global protein expression of Chromobacterium violaceum using a gel-based proteomic approach. The protein expression profile was only slightly altered, with ...

Journal: :PloS one 2016
Qinlong Ma Chunhai Chen Ping Deng Gang Zhu Min Lin Lei Zhang Shangcheng Xu Mindi He Yonghui Lu Weixia Duan Huifeng Pi Zhengwang Cao Liping Pei Min Li Chuan Liu Yanwen Zhang Min Zhong Zhou Zhou Zhengping Yu

Exposure to extremely low-frequency electromagnetic fields (ELF-EMFs) can enhance hippocampal neurogenesis in adult mice. However, little is focused on the effects of ELF-EMFs on embryonic neurogenesis. Here, we studied the potential effects of ELF-EMFs on embryonic neural stem cells (eNSCs). We exposed eNSCs to ELF-EMF (50 Hz, 1 mT) for 1, 2, and 3 days with 4 hours per day. We found that eNSC...

Journal: :Bioelectromagnetics 2007
Cindy Sage Olle Johansson S Amy Sage

Initial tests indicate that personal and occupational use of personal digital assistants (PDAs or palm-held wireless units) produce high intensity bursts of extremely-low frequency electromagnetic fields (ELF-EMF). These emissions could result in comparatively high ELF-EMF exposure in persons that carry a PDA close to the body (i.e., in a pocket or on a belt); or held to the head for cell phone...

Journal: :International journal of occupational medicine and environmental health 2015
Paweł Bodera Wanda Stankiewicz Bożena Antkowiak Małgorzata Paluch Jarosław Kieliszek Jaromir Sobiech Marcin Niemcewicz

OBJECTIVES The aim of this study is the evaluation of the influence of repeated (5 times for 15 min) exposure to electromagnetic field (EMF) of 1800 MHz frequency on tissue lipid peroxidation (LPO) both in normal and inflammatory state, combined with analgesic treatment. MATERIAL AND METHODS The concentration of malondialdehyde (MDA) as the end-product of the lipid peroxidation (LPO) was esti...

Journal: :Behavioural brain research 2014
Karima Maaroufi Laurence Had-Aissouni Christophe Melon Mohsen Sakly Hafedh Abdelmelek Bruno Poucet Etienne Save

The increasing use of mobile phone technology over the last decade raises concerns about the impact of high frequency electromagnetic fields (EMF) on health. More recently, a link between EMF, iron overload in the brain and neurodegenerative disorders including Parkinson's and Alzheimer's diseases has been suggested. Co-exposure to EMF and brain iron overload may have a greater impact on brain ...

Journal: :The Laryngoscope 2013
Seung Min In Hyun Jun Kim Rae Woong Park Woojae Kim Yoon-Myoung Gimm Ikmo Park Sungpyo Hong Jeong Joo Hong Jeong Hyun Oh Hison Kahng Eun Young Park

OBJECTIVES/HYPOTHESIS The aim of this study was to investigate the effects of a 1.8 GHz continuous electromagnetic fields (EMF) on human nasal mucociliary transport, and to determine the pathophysiology of ciliary beat frequency (CBF) during an EMF-induced change. METHODS Human nasal mucosa cells were exposed to a 1.8 GHz EMF (SAR=1.0 W/kg), and CBF was analyzed using an optical flow techniqu...

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