Devices for gradient static magnetic field exposure.

abstract：:An elementary model consisting of one charged particle in a viscous medium exposed to weak ac-dc low-frequency magnetic fields is analyzed to identify and explain the fundamental characteristics of the physical mechanisms that result in a resonance response, which is similar to the familiar cyclotron resonance. The mo...

journal_title：Bioelectromagnetics

authors： Durney CH,Rushforth CK,Anderson AA

更新日期：1988-01-01 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：:Some numerical and analytical methods used to estimate the internal electric fields and current densities produced within human and animal models by low-frequency electric and magnetic fields are surveyed. A major goal of such modeling is the design of laboratory experiments on cellular systems or animal models to pro...

journal_title：Bioelectromagnetics

authors： Hart FX

更新日期：1992-01-01 00:00:00

abstract：:This paper investigates the effect of relevant physical parameters on transient temperature elevation induced in human tissues by electromagnetic waves in the terahertz (THz) band. The problem is defined by assuming a plane wave, which, during a limited time interval, normally impinges on the surface of a 3-layer mode...

journal_title：Bioelectromagnetics

authors： Zilberti L,Arduino A,Bottauscio O,Chiampi M

更新日期：2014-07-01 00:00:00

abstract：:In an hypothesis-generating case-control study of amyotrophic lateral sclerosis, lifetime occupational histories were obtained. The patients (n = 28) were clinic based. The occupational exposure of interest in this report is electromagnetic fields (EMFs). This is the first and so far the only exposure analyzed in this...

journal_title：Bioelectromagnetics

authors： Davanipour Z,Sobel E,Bowman JD,Qian Z,Will AD

更新日期：1997-01-01 00:00:00

abstract：:Most of the research concerning magnetic antinociception was focused on brief exposure less than 1 h. The main purpose of the present study was to determine the effect of extremely low frequency (ELF) magnetic field (MF) repeated exposures on rats in inducing antinociception and to find the effective analgesic "time w...

journal_title：Bioelectromagnetics

authors： Bao X,Shi Y,Huo X,Song T

更新日期：2006-09-01 00:00:00

abstract：:We used exposure to microwaves from a global system for mobile communication (GSM) mobile phone (915 MHz, specific absorption rate (SAR) 37 mW/kg) and power frequency magnetic field (50 Hz, 15 muT peak value) to investigate the response of lymphocytes from healthy subjects and from persons reporting hypersensitivity t...

journal_title：Bioelectromagnetics

authors： Belyaev IY,Hillert L,Protopopova M,Tamm C,Malmgren LO,Persson BR,Selivanova G,Harms-Ringdahl M

更新日期：2005-04-01 00:00:00

abstract：:Measurements have been made of vector current densities induced by vertical, uniform, 60-Hz electric fields in the torsos of homogeneous models of swine and rats. The observed data were a strong function of the five grounding configurations invested: all four feet grounded, only front feet grounded, only rear feet gro...

journal_title：Bioelectromagnetics

authors： Kaune WT,Forsythe WC

更新日期：1988-01-01 00:00:00

abstract：:There is extensive literature on possible effects of extremely low-frequency magnetic fields (ELF-MFs) on human cognitive functions. However, due to methodological deficits (e.g., low statistical power, small sample sizes) findings have been inconsistent. In the current study we try to overcome these problems by carry...

journal_title：Bioelectromagnetics

authors： Barth A,Ponocny I,Ponocny-Seliger E,Vana N,Winker R

更新日期：2010-04-01 00:00:00

abstract：:We have previously employed the Lorentz-Langevin model to describe the effects of weak exogenous magnetic fields via the classical Lorentz force on a charged ion bound in a harmonic oscillator potential, in the presence of thermal noise forces. Previous analyses predicted that microT-range fields give rise to a rotati...

journal_title：Bioelectromagnetics

authors： Muehsam DJ,Pilla AA

更新日期：2009-09-01 00:00:00

abstract：:This study was undertaken to investigate whether power frequency magnetic fields can affect the kinetics of cell cycle progression in exposed human cells. To achieve this, cultures of normal human fibroblasts were synchronised in the G(0) phase of the cell cycle and exposed to 50 Hz magnetic fields at a range of flux ...

journal_title：Bioelectromagnetics

authors： Cridland NA,Haylock RG,Saunders RD

更新日期：1999-10-01 00:00:00

abstract：:This article presents measurement methods used to determine the human exposure to electromagnetic fields radiated from operating base stations. In Korea, when evaluating the human exposure to electromagnetic fields from operating base stations, the measurement procedure is different between the following cases: in sit...

journal_title：Bioelectromagnetics

authors： Kim BC,Choi HD,Park SO

更新日期：2008-10-01 00:00:00

abstract：:Despite experimental evidence supporting ICR-like interactions in biological systems, to date there is no reasonable theoretical explanation for this phenomenon. The parametric resonance approach introduced by Lednev has enjoyed limited success in predicting the response as a function of the ratio of AC magnetic inten...

journal_title：Bioelectromagnetics

authors： Vincze G,Szasz A,Liboff AR

更新日期：2008-07-01 00:00:00

abstract：:The present article reviews the basic principles of a new approach to the characterization of pulmonary disease. This approach is based on the unique nuclear magnetic resonance (NMR) properties of the lung and combines experimental measurements (using specially developed NMR techniques) with theoretical simulations. T...

journal_title：Bioelectromagnetics

authors： Cutillo AG,Ailion DC

更新日期：1999-01-01 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：:We studied the effect produced on the development and functional activity of skeletal muscle cells from newborn Wistar rats in primary culture by weak static magnetic fields (WSMF; 60-400 µT) with a high capacity of penetrating the biological media. To reduce the impact of external magnetic fields, cells were cultured...

journal_title：Bioelectromagnetics

authors： Surma SV,Belostotskaya GB,Shchegolev BF,Stefanov VE

更新日期：2014-12-01 00:00:00

abstract：:Rats were tested for neurobehavioral alterations immediately after exposure to 2.45-GHz (CW) microwave radiation at 10 mW/cm2 for 7 h. Behavioral tests used were locomotor activity, startle to an acoustic stimulus and acquisition and retention of a shock-motivated passive avoidance task. Both horizontal and vertical c...

journal_title：Bioelectromagnetics

authors： Mitchell CL,McRee DI,Peterson NJ,Tilson HA

更新日期：1988-01-01 00:00:00

abstract：:Magnetite, the only known biogenic material with ferromagnetic properties, has been identified as a biochemical precipitate in three of the five kingdoms of living organisms, with a fossil record that now extends back nearly 2 billion years. In the magnetotactic bacteria, protoctists, and fish, single-domain crystals ...

journal_title：Bioelectromagnetics

authors： Kirschvink JL

更新日期：1989-01-01 00:00:00

abstract：:The goal of the research reported here is to narrow the range of uncertainty about peripheral nerve stimulation (PNS) thresholds associated with whole body magnetic field exposures at 50/60 Hz. This involved combining PNS thresholds measured in human subjects exposed to pulsed magnetic gradient fields with calculation...

journal_title：Bioelectromagnetics

authors： Bailey WH,Nyenhuis JA

更新日期：2005-09-01 00:00:00

abstract：:The impedance spectroscopy technique (IST) was used for studying the effect of a 0.5 T magnetic field on the electrical properties of whole human blood. A Solartron SI 1260 spectrometer was used to measure the impedance spectra of magnetic field exposed blood samples compared to non-exposed samples. An equivalent elec...

journal_title：Bioelectromagnetics

authors： Sosa M,Bernal-Alvarado J,Jiménez-Moreno M,Hernández JC,Gutiérrez-Juárez G,Vargas-Luna M,Huerta R,Villagómez-Castro JC,Palomares P

更新日期：2005-10-01 00:00:00

abstract：:A new human head phantom has been proposed by CENELEC/IEEE, based on a large scale anthropometric survey. This phantom is compared to a homogeneous Generic Head Phantom and three high resolution anatomical head models with respect to specific absorption rate (SAR) assessment. The head phantoms are exposed to the radia...

journal_title：Bioelectromagnetics

authors： Christ A,Chavannes N,Nikoloski N,Gerber HU,Poković K,Kuster N

更新日期：2005-02-01 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：: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：:We present a geospatial model to predict the radiofrequency electromagnetic field from fixed site transmitters for use in epidemiological exposure assessment. The proposed model extends an existing model toward the prediction of indoor exposure, that is, at the homes of potential study participants. The model is based...

journal_title：Bioelectromagnetics

authors： Bürgi A,Frei P,Theis G,Mohler E,Braun-Fahrländer C,Fröhlich J,Neubauer G,Egger M,Röösli M

更新日期：2010-04-01 00:00:00

abstract：:In this acceptance address for the Bioelectromagnetics Society's 2001 d'Arsonval Award, Dr. Tenforde reviews the highlights of the nonionizing field aspects of his research and scientific service career. These are focused in four areas: (a). development and application of microelectrophoretic methods to probe the surf...

journal_title：Bioelectromagnetics

authors： Tenforde TS

更新日期：2003-01-01 00:00:00

abstract：:Adair [Bioelectromagnetics 14:1-4, 1993] writes that "the effects of 60 Hz magnetic fields of 5 microT (50 mG) or less on biological structures holding magnetite (Fe3O4) are shown to be much smaller than those from thermal agitation; hence such interactions cannot be expected to be biologically significant." This conc...

journal_title：Bioelectromagnetics

authors： Polk C

更新日期：1994-01-01 00:00:00

abstract：:This study deals with the morphofunctional influence of 72 h exposure to a 6 mT static magnetic field (SMF) during differentiation induced by 50 ng/ml 12-O-tetradecanoyl-13-phorbol acetate (TPA) in human leukaemia U937 cells. The cell morphology of U937 cells was investigated by optic and electron microscopy. Specific...

journal_title：Bioelectromagnetics

authors： Dini L,Dwikat M,Panzarini E,Vergallo C,Tenuzzo B

更新日期：2009-07-01 00:00:00

abstract：:Extremely-low-frequency (ELF) and very-low-frequency (VLF) magnetic fields as emitted by monochrome and multichrome video display units (VDUs) were measured for their frequency domains. The rms magnetic-flux densities (MFDs) were measured as a function of distance from all six sides of VDUs of four types. The MFDs at ...

journal_title：Bioelectromagnetics

authors： Tofani S,D'Amore G

更新日期：1991-01-01 00:00:00

abstract：:This paper computationally verifies the effect of anesthesia on temperature variations in the rabbit eye due to microwave energy. The main reason for this investigation is that our previous paper suggested a reduction in blood flow due to the administration of anesthesia, resulting in an overestimated temperature incr...

journal_title：Bioelectromagnetics

authors： Hirata A,Watanabe S,Kojima M,Hata I,Wake K,Taki M,Sasaki K,Fujiwara O,Shiozawa T

更新日期：2006-12-01 00:00:00

abstract：:In a previous study, we showed that operators of radiofrequency (RF) plastic sealers, RF operators (n = 35) had a lower heart rate during nighttime compared to a control group (n = 37). We have analyzed the heart rate variability (HRV) on the same group of people to better understand the possible underlying rhythm dis...

journal_title：Bioelectromagnetics

authors： Wilén J,Wiklund U,Hörnsten R,Sandström M

更新日期：2007-01-01 00:00:00