نتایج جستجو برای: electromagnetic fields emfs

تعداد نتایج: 307315  

2016
Benjamin J. Scherlag Kaustuv Sahoo Abraham A. Embi

Background: Previous studies have used highly sophisticated devices for measuring the electromagnetic fields (EMFs) of plants and from the heart and brain of man. The purpose of this communication is to introduce a simplified method whereby EMFs generated by plant and animal tissues could be visualized with optical and video microscopy. Methods: A solution containing aliquots of fine iron parti...

Journal: :Neuroscience and biobehavioral reviews 2007
Cristina Del Seppia Sergio Ghione Paolo Luschi Klaus-Peter Ossenkopp Elena Choleris Martin Kavaliers

A substantial body of evidence has accumulated showing that exposure to electromagnetic fields (EMFs) affects pain sensitivity (nociception) and pain inhibition (analgesia). Consistent inhibitory effects of acute exposures to various EMFs on analgesia have been demonstrated in most studies. This renders examinations of changes in the expression of analgesia and nociception a particularly valuab...

Journal: :Teratology 1999
E Robert

Electromagnetic radiations are named according to frequency or to wavelength (which is inversely proportional to frequency) and create electromagnetic fields (EMFs). Frequencies widely vary according to sources: high-voltage power lines, electrically heated beds, MRI, VDTs, microwave ovens, satellite, and radio/TV transmissions or cellular phone transmitters/receivers. Public concern has increa...

2017

Submit Manuscript | http://medcraveonline.com Abbreviations: EMFs: Electromagnetic Fields; MWR: Microwave Radiation; NIR: Non-Ionizing Radiation; RF-EMW: Radiofrequency Electromagnetic Waves; RF: Radiofrequency; EMW: Electromagnetic Wave; SNS: Sympathetic Nervous System; PNS: Parasympathetic Nervous System; PRA: Plasma Renin Activity; AMI: Acute Myocardial Infarction; SNAP: N-AcetylSnitrosoDl-P...

2015
Dimitris J. Panagopoulos Olle Johansson George L. Carlo

In the present study we analyze the role of polarization in the biological activity of Electromagnetic Fields (EMFs)/Electromagnetic Radiation (EMR). All types of man-made EMFs/EMR - in contrast to natural EMFs/EMR - are polarized. Polarized EMFs/EMR can have increased biological activity, due to: 1) Ability to produce constructive interference effects and amplify their intensities at many loca...

Journal: :European heart journal 2015
Andreas Napp Dominik Stunder Melanie Maytin Thomas Kraus Nikolaus Marx Sarah Driessen

Utilization of cardiac implants such as pacemakers and implantable cardioverter defibrillators is now commonplace among heart disease patients. The ever-increasing technological complexity of these devices is matched by the near omnipresent exposure to electric, magnetic, and electromagnetic fields (EMFs), both in everyday life and the occupational environment. Given that electromagnetic interf...

2005
Peter M. Wiedemann Holger Schütz

Possible adverse health effects due to electromagnetic fields (EMFs) from cellular phones and base stations present a major public health issue across Europe. Because scientists cannot exclude that EMFs may cause health problems, the application of the precautionary principle is debated heavily. By considering precautionary measures, political decision makers hope to cope with public fears abou...

2017
Enrica Capelli Filippo Torrisi Letizia Venturini Maria Granato Lorenzo Fassina Giuseppe Francesco Damiano Lupo Giovanni Ricevuti

The aim of the present study was to investigate on the effects of a low-frequency pulsed electromagnetic field (LF-PEMF) in an experimental cell model of Alzheimer's disease (AD) to assess new therapies that counteract neurodegeneration. In recent scientific literature, it is documented that the deep brain stimulation via electromagnetic fields (EMFs) modulates the neurophysiological activity o...

Journal: :Applied biochemistry and biotechnology 2014
Yun-Kyong Choi Dong Heon Lee Young-Kwon Seo Hyun Jung Jung-Keug Park Hyunjin Cho

Human bone marrow-derived mesenchymal stem cells (hBM-MSCs) have been investigated as a new cell-therapeutic solution due to their capacity that could differentiate into neural-like cells. Extremely low-frequency electromagnetic fields (ELF-EMFs) therapy has emerged as a novel technique, using mechanical stimulus to differentiate hBM-MSCs and significantly enhance neuronal differentiation to af...

2012
Abraham O. Rodríguez-De la Fuente Juan M. Alcocer-González J. Antonio Heredia-Rojas Cristina Rodríguez-Padilla Laura E. Rodríguez-Flores Martha A. Santoyo-Stephano Esperanza Castañeda-Garza Reyes S. Taméz-Guerra

Exposure to EMFs (electromagnetic fields) results in a number of important biological changes, including modification of genetic expression. We have investigated the effect of 60 Hz sinusoidal EMFs at a magnetic flux density of 80 μT on the expression of the luciferase gene contained in a plasmid labelled as pEMF (EMF plasmid). This gene construct contains the specific sequences for the inducti...

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