Numerical and analytical methods to determine the current density distributions produced in human and rat models by electric and magnetic fields.

abstract：:The use of electronic article surveillance (EAS) systems has become popular in many public sites. As a consequence, concern has risen about infant exposure to magnetic fields (MFs) from this kind of device. To evaluate infant exposure to MFs of an EAS system (operating at 125 kHz and 13.56 MHz), we numerically compare...

journal_title：Bioelectromagnetics

authors： Li C,Wu T

更新日期：2015-04-01 00:00:00

abstract：:Ozone can be produced by corona discharge either in dry air or when one electrode is submerged in water. Since ozone is toxic, we examined whether ozone production by corona near laboratory animals could reach levels of concern. Male rats were exposed to a corona discharge and the concentration of ozone produced was m...

journal_title：Bioelectromagnetics

authors： Goheen SC,Gaither K,Anantatmula SM,Mong GM,Sasser LB,Lessor D

更新日期：2004-02-01 00:00:00

abstract：:The aim of this study was to elucidate the possible effects of short-term exposure to a 1439-MHz electromagnetic field (EMF) employing time division multiple access (TDMA), which is the basis of the Japanese Personal Digital Cellular system, on estrogenic activity in rats. Sixty-four ovariectomized female Sprague-Dawl...

journal_title：Bioelectromagnetics

authors： Yamashita H,Hata K,Yamaguchi H,Tsurita G,Wake K,Watanabe S,Taki M,Ueno S,Nagawa H

更新日期：2010-10-01 00:00:00

abstract：:The controversy over the possible association between magnetic field exposure and childhood leukemia has led several researchers to summarize the literature using meta-analysis. This paper reviews these previous meta-analyses and extends them by adding results from four studies published since the most recent analysis...

journal_title：Bioelectromagnetics

authors： Wartenberg D

更新日期：2001-01-01 00:00:00

abstract：:Reports that low-intensity microwave radiation induces heat-shock reporter gene expression in the nematode, Caenorhabditis elegans, have recently been reinterpreted as a subtle thermal effect caused by slight heating. This study used a microwave exposure system (1.0 GHz, 0.5 W power input; SAR 0.9-3 mW kg(-1) for 6-we...

journal_title：Bioelectromagnetics

authors： Dawe AS,Bodhicharla RK,Graham NS,May ST,Reader T,Loader B,Gregory A,Swicord M,Bit-Babik G,de Pomerai DI

更新日期：2009-12-01 00:00:00

abstract：:Magnetic targeting is a promising therapeutic strategy for localizing systemically delivered magnetic responsive drugs or cells to target tissue, but excessive aggregation of magnetic particles could result in vascular embolization. To analyze the reason for embolization, the attractive process of magnetic particles i...

journal_title：Bioelectromagnetics

authors： Pei N,Cheng X,Huang Z,Wang X,Yang K,Wang Y,Gong Y

更新日期：2016-07-01 00:00:00

abstract：:In spite of rapid worldwide increase in mobile phone use and public concerns about associated potential health effects, little is known about patterns of mobile phone ownership and use in the general population and among children. In April 2005, we conducted a survey of mobile phone ownership and use among fourth grad...

journal_title：Bioelectromagnetics

authors： Mezei G,Benyi M,Muller A

更新日期：2007-05-01 00:00:00

abstract：:In order to demonstrate possible specific effects of microwaves at the cellular level V-79 Chinese hamster cells were exposed to 2.45-GHz radiation at power levels of 20-200 mW/cm2 and at specific absorption rates of 10-100 mW/g. Intracellular cytoplasmic changes were observed by fluorescence polarization using a meth...

journal_title：Bioelectromagnetics

authors： Dardalhon M,Moré C,Averbeck D,Berteaud AJ

更新日期：1984-01-01 00:00:00

abstract：:The potential effects of radiofrequency (RF) exposure on the genetic material of cells are very important to determine since genome instability of somatic cells may be linked to cancer development. In response to genetic damage, the p53 protein is activated and can induce cell cycle arrest allowing more time for DNA r...

journal_title：Bioelectromagnetics

authors： Bourthoumieu S,Magnaudeix A,Terro F,Leveque P,Collin A,Yardin C

更新日期：2013-01-01 00:00:00

abstract：:This study examined whether 60 Hz magnetic field (MF) exposure alters intracellular calcium levels ([Ca(2+)](i)) in isolated bovine adrenal chromaffin cells, a classic model of neural responses. [Ca(2+)](i) was monitored by fluorescence video imaging of cells loaded with the calcium indicator fluo-4 during exposures t...

journal_title：Bioelectromagnetics

authors： Craviso GL,Poss J,Lanctot C,Lundback SS,Chatterjee I,Publicover NG

更新日期：2002-12-01 00:00:00

abstract：:Experiments were conducted to see whether the cellular response to electromagnetic (EM) fields occurs through a detection process involving temporal sensing. L929 cells were exposed to 60 Hz magnetic fields and the enhancement of ornithine decarboxylase (ODC) activity was measured to determine cellular response to the...

journal_title：Bioelectromagnetics

authors： Litovitz TA,Penafiel M,Krause D,Zhang D,Mullins JM

更新日期：1997-01-01 00:00:00

abstract：:Chemical and bacterial synthesis of a thermochemiluminescent polymer known as diazoluminomelanin (DALM) has been previously reported. This paper focuses on the intracellular synthesis of aminomelanin (AM) in mammalian cell lines and subsequent DALM synthesis from this core molecule. B16 melanoma cells, HL-60 myeloid l...

journal_title：Bioelectromagnetics

authors： Bruno JG,Kiel JL

更新日期：1994-01-01 00:00:00

abstract：:In-vitro studies of biological effects of electromagnetic fields are often conducted with cultured cells either in suspension or grown in a monolayer. In the former case, the exposed medium can be assumed to be homogeneous; however, eventually the cells settle to the bottom of the container forming a two layer system ...

journal_title：Bioelectromagnetics

authors： Wang W,Litovitz TA,Penafiel LM,Meister R

更新日期：1993-01-01 00:00:00

abstract：:Heat shock proteins (HSPs) are rapidly induced by a variety of stressors, including heat shock, ethanol, heavy metals, UV, and gamma-radiation. Mitogen-activated protein kinases (MAPKs) are also involved in the stress transduction pathways in all eukaryotes. In this study, we attempted to determine whether radiofreque...

journal_title：Bioelectromagnetics

authors： Lee JS,Huang TQ,Kim TH,Kim JY,Kim HJ,Pack JK,Seo JS

更新日期：2006-10-01 00:00:00

abstract：:The aim of the present study was to determine millimeter wave (MMW) absorption by blood vessels traversing the subcutaneous fat layer of murine skin. Most calculations were performed using the finite-difference time-domain (FDTD) technique. We used two types of models: (1) a rectangular block of multilayer tissue with...

journal_title：Bioelectromagnetics

authors： Alekseev SI,Ziskin MC

更新日期：2011-09-01 00:00:00

abstract：:The objective was to study the risk of cytogenetic damage among high voltage laboratory workers exposed to electromagnetic fields and mineral oil. This is a cross sectional study of 24 exposed and 24 matched controls in a Norwegian transformer factory. The exposure group included employees in the high voltage laborato...

journal_title：Bioelectromagnetics

authors： Skyberg K,Hansteen IL,Vistnes AI

更新日期：2001-04-01 00:00:00

abstract：:The wide and growing use of cellular phones has raised questions about the possible health risks associated with radio frequency (RF) electromagnetic fields. It would be helpful for epidemiologists as well as cellular phone users to obtain the relative exposure levels, because the RF exposure level is very difficult t...

journal_title：Bioelectromagnetics

authors： Kim SC,Nam KC,Kim DW

更新日期：2006-09-01 00:00:00

abstract：:An automated blood sampling system was developed for use with tethered baboons (Papio cynocephalus) during concurrent exposure to 60 Hz 30 kV/m electric fields and 0.1 mT (1.0 G) magnetic fields. The system was controlled by a FORTH-based microcomputer, which operated a pump, a fraction collector, and two pinch valves...

journal_title：Bioelectromagnetics

authors： Rogers WR,Lucas JH,Mikiten BC,Smith HD,Orr JL

更新日期：1995-01-01 00:00:00

abstract：:Studies have evaluated the electroencephalography (EEG) of humans and laboratory animals during and after Radiofrequency (RF) exposures. Effects of RF exposure on the blood-brain barrier (BBB) have been generally accepted for exposures that are thermalizing. Low level exposures that report alterations of the BBB remai...

journal_title：Bioelectromagnetics

authors： D'Andrea JA,Chou CK,Johnston SA,Adair ER

更新日期：2003-01-01 00:00:00

abstract：:Calcium (45Ca2+) efflux from preloaded synaptosomes was studied with a continuous perfusion technique and the rate constants of a two-phase efflux process calculated. When 16-Hz sinusoidally amplitude modulated 450-MHz microwave field (maximal incident intensity 0.5 mW/cm2, modulation depth 75%) was applied during the...

journal_title：Bioelectromagnetics

authors： Lin-Liu S,Adey WR

更新日期：1982-01-01 00:00:00

abstract：:The objective of the study was to investigate the influence of humidity on analyzing electric field exposure using extremely low frequency (ELF) electric field measurements. The study included 322 measurements in a climate room. We used two commercial three-axis meters, EFA-3 and EFA-300, and employed two measurement ...

journal_title：Bioelectromagnetics

authors： Korpinen LH,Kuisti HA,Tarao H,Elovaara JA

更新日期：2013-07-01 00:00:00

abstract：:The effects of millimeter microwaves in the frequency range of 54-76 GHz on capacitance and conductance of lipid bilayer membranes (BLM) were studied. Some of the membranes were modified by gramicidin A and amphotericin B or by tetraphenylboron anions (TPhB-). The millimeter microwaves were pulse-modulated (PW) at rep...

journal_title：Bioelectromagnetics

authors： Alekseev SI,Ziskin MC

更新日期：1995-01-01 00:00:00

abstract：:To assess the effect of a magnetic treatment on pain perception, we compared the sensory threshold in 18 healthy volunteers. We determined the threshold by noninvasive electrical stimulation of the tooth pulp and skin before and after exposure to an altered magnetic field of low intensity and to a sham treatment. Five...

journal_title：Bioelectromagnetics

authors： Papi F,Ghione S,Rosa C,Del Seppia C,Luschi P

更新日期：1995-01-01 00:00:00

abstract：:We have shown that 50 Hz sinusoidal magnetic fields within the 5-10 microTesla (microT) rms range cause an intensity-dependent reduction in nerve growth factor (NGF) stimulation of neurite outgrowth (NO) in PC-12 cells. Here we report on the frequency dependence of this response over the 15-70 Hz range at 5 Hz interva...

journal_title：Bioelectromagnetics

authors： Blackman CF,Benane SG,House DE

更新日期：1995-01-01 00:00:00

abstract：:Specific absorption rate (SAR) value is dependent on permittivity value. However, variability in the published permittivity values for human and animal tissue and the development of sophisticated 3-dimensional digital anatomical models to predict SAR values has resulted in the need to understand how model parameters (...

journal_title：Bioelectromagnetics

authors： Gajsek P,Ziriax JM,Hurt WD,Walters TJ,Mason PA

更新日期：2001-09-01 00:00:00

abstract：:The stimulatory effects on germination of seeds and growth of plants of static magnetic field (MF) pre-treatments depending on MF intensity, exposure time periods, signal form, flux density, and source frequencies on plants are reported. Seed germination frequency is low due to dormancy in Lathyrus chrysanthus Boiss. ...

journal_title：Bioelectromagnetics

authors： Bahadir A,Beyaz R,Yildiz M

更新日期：2018-10-01 00:00:00

abstract：:We summarize the results of several of our recent studies on the dielectric properties of protein solutions, tissues, and nonionic microemulsions at microwave frequencies extending to 18 GHz. The data in all cases are analyzed using the Maxwell mixture theory to determine the dielectric properties of the suspending wa...

journal_title：Bioelectromagnetics

authors： Foster KR,Schepps JL,Epstein BR

更新日期：1982-01-01 00:00:00

abstract：:The aim of the present study was to investigate the influence of 50 Hz sinusoidal magnetic field on Hsp27, Hsp70, and Hsp90 expression in a model of primary culture of porcine aortic endothelial cells (PAEC). We took into consideration the Hsp profile in terms of mRNA expression, protein expression and protein localiz...

journal_title：Bioelectromagnetics

authors： Bernardini C,Zannoni A,Turba ME,Bacci ML,Forni M,Mesirca P,Remondini D,Castellani G,Bersani F

更新日期：2007-04-01 00:00:00

abstract：:A 275-MHz exposure system, consisting of a circular waveguide irradiator and a transparent plastic animal cage, has been developed to accommodate rhesus monkeys weighing up to 15 kg. The vertically oriented waveguide is composed primarily of stainless steel and is fitted with an inner cage fabricated from a tubular se...

journal_title：Bioelectromagnetics

authors： Olsen RG,de Lorge JO,Forstall JR,Ezell CS

更新日期：1984-01-01 00:00:00

abstract：:Electric fields, which were equivalent to those generated by medical devices, were applied to cultured neuroblastoma cells (mouse and human) to test for morphological damage and to establish damage thresholds. Each of two methods of applying fields permitted flow of electrical current and minimized exposure of cells t...

journal_title：Bioelectromagnetics

authors： Krauthamer V,Bekken M,Horowitz JL

更新日期：1991-01-01 00:00:00