Abstract:
:Digital cellular telephones using the GSM (Global System for Mobile Communication) transmit information in bursts of microwaves. This pulsed transmitting mode causes the battery current and currents in the electronics of the apparatus to be pulsed. These pulsed currents produce corresponding pulsed magnetic fields near the phones. A study to determine the magnitude of these fields involved two models of digital telephones. The highest value of the magnetic flux density was 1.8 microT (rms).
journal_name
Bioelectromagneticsjournal_title
Bioelectromagneticsauthors
Linde T,Mild KHsubject
Has Abstractpub_date
1997-01-01 00:00:00pages
184-6issue
2eissn
0197-8462issn
1521-186Xpii
10.1002/(SICI)1521-186X(1997)18:2<184::AID-BEM12>3journal_volume
18pub_type
杂志文章abstract::Recent interest in the transient magnetic field events produced by electrical switching events in residential and occupational environments has been kindled by the possibility that these fields may explain observed associations between childhood cancer and wire codes. This paper reports the results of a study in which...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/(sici)1521-186x(200004)21:3<197::aid-bem7>
更新日期:2000-04-01 00:00:00
abstract::In this study, we aimed to clarify the effects of chronically applied static magnetic field (200 Gauss) on specific ATPase activities and bioelectrical and biomechanical responses in isolated rat diaphragm muscle. The mean activities of Na(+)-K+ ATPase and Ca2+ ATPase determined from the diaphragm homogenates were sig...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.2250160302
更新日期:1995-01-01 00:00:00
abstract::A system is described that uses an oscillating magnetic field to produce power-frequency electric fields with strengths in excess of those produced in an animal or human standing under a high-voltage electric-power transmission line. In contrast to other types of exposure systems capable of generating fields of this s...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.2250050202
更新日期:1984-01-01 00:00:00
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journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.21903
更新日期:2015-04-01 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
pub_type: 杂志文章,meta分析
doi:10.1002/1521-186x(2001)22:5+<::aid-bem1026>3.3.co;
更新日期:2001-01-01 00:00:00
abstract::Effects of short, extremely high power microwave pulses (EHPP) on neuronal network function were explored by electrophysiological techniques in the isolated rat hippocampal slice model. Population spikes (PS) in the CA1 area were evoked by repeated stimulation (1 per 30 s) of the Schaffer collateral pathway. A brief t...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.10079
更新日期:2003-04-01 00:00:00
abstract::The effects of an extremely low frequency (ELF) magnetic field on the sex hormones and other fertility parameters of adult male Sprague-Dawley rats were investigated. Adult male rats were exposed to a 50 Hz sinusoidal magnetic field at approximately 25 microT (rms) for 18 consecutive weeks. There were no significant e...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.20186
更新日期:2006-02-01 00:00:00
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journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.20524
更新日期:2010-01-01 00:00:00
abstract::Occupational exposure to the high static magnetic fields (SMFs) during magnetic resonance imaging (MRI) examinations raises concerns of adverse health effects. In this study, personal exposure monitoring of the magnetic fields during routine examinations in two 3 T MRI systems was carried out. A three-axis Hall magnet...
journal_title:Bioelectromagnetics
pub_type: 杂志文章,多中心研究
doi:10.1002/bem.21817
更新日期:2014-01-01 00:00:00
abstract::The aim of the present study was to investigate possible neurophysiological effects of intermittent 15 sec on/off cycle, 60 Hz, 10 microT magnetic field exposure on patients with perceived "electromagnetic hypersensitivity" (EHS), and control subjects during rest and performance of a mental arithmetic task. Twenty par...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:
更新日期:2001-10-01 00:00:00
abstract::The dielectric properties of the bovine brain grey and white matter in the frequency range from 20 kHz to 100 MHz were measured at different times following animal death. Changes in the dielectric parameters versus time are interpreted in terms of the reduction of the cell volume fraction that results from either cell...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.2250070105
更新日期:1986-01-01 00:00:00
abstract::Vertigo-like sensations or apparent perception of movement are reported by some subjects and operators in and around high field whole body magnetic resonance body scanners. Induced currents (which modulate the firing rate of the vestibular hair cell), magneto-hydrodynamics (MDH), and tissue magnetic susceptibility dif...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.20316
更新日期:2007-07-01 00:00:00
abstract::The level of exposure of laboratory animals to 60-Hz electric fields is commonly specified in terms of the unperturbed field strength present before the introduction of experimental subjects and their cages. In the research reported in this paper, rats were housed in two parallel rows in 12.4 cm x 25.1 cm x 10.2 cm hi...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.2250020105
更新日期:1981-01-01 00:00:00
abstract::This study reports the continuous 8-h monitoring of data on extremely low-frequency magnetic fields (ELF-MF) relating to 14 children and 35 teachers in 11 elementary schools in Northern Taiwan. It was anticipated that the subjects in two of these campuses would have elevated exposure to ELF-MF as a result of their clo...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.20431
更新日期:2008-10-01 00:00:00
abstract::The extent of electromagnetic interference (EMI) from 16.7-Hz alternate current power lines in the human surface electrocardiogram (ECG) was evaluated. Results showed a direct linear correlation between mean EMI and magnetic induction of 5.8-21 microT on a railroad platform (electric field: 270 V/m). EMI inside a rail...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.20319
更新日期:2007-07-01 00:00:00
abstract::The influence of a pulsed magnetic field (PMF; sawtooth with 45-microseconds linear rise time and 5-microseconds decay time, peak strength of 15 microT, and frequency 20000 pps) [corrected] on the embryogenesis of CBA/S mice was investigated in five experiments based on a total of 707 exposed and 543 unexposed primigr...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.2250140303
更新日期:1993-01-01 00:00:00
abstract::Sixteen pregnant Holstein heifers weighing 521 +/- 46 kg, at 3.3 +/- 0.7 months of gestation and 2.2 +/- 2.0 months of age were confined to wooden metabolism cages and were exposed to a vertical electric field (EF) of 10.0 +/- 0.4 kV/m and an artificial light cycle of 12 h light-12 h dark. The heifers were divided int...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.20020
更新日期:2004-05-01 00:00:00
abstract::Using a crossover experimental design, we evaluated our earlier findings that exposure to a 30 kV/m, 60 Hz electric field for 12 hours per day, 7 days per week for 6 weeks produced significant changes in the performance rates of social behaviors among young adult male baboons. In the crossover experiment, the former c...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.2250130506
更新日期:1992-01-01 00:00:00
abstract::The effects of mm-waves 60.22-62.22 GHz and 75 GHz on A-type K+ currents and the effects of 61.22 GHz on Ca2+ currents of Lymnaea neurons were investigated using a whole-cell voltage-clamp technique. The open end of a rectangular waveguide covered with a thin Teflon film served as a radiator. Specific absorption rates...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:
更新日期:1999-01-01 00:00:00
abstract::Low-energy pulsed electromagnetic field (PEMF) therapy has been suggested as a promising therapy to increase microcirculation, which is of great concern in patients with fibromyalgia. This study evaluated the effectiveness of PEMF therapy on the treatment of fibromyalgia. A group of 108 women with fibromyalgia were al...
journal_title:Bioelectromagnetics
pub_type: 杂志文章,随机对照试验
doi:10.1002/bem.22127
更新日期:2018-07-01 00:00:00
abstract::The influence of tissue compression and external thermal modulation on passive detection of breast tumors using medical microwave radiometry was investigated using multi-physics numerical modeling. A three-dimensional numerical model of the pendant breast with 10 and 6 mm diameter tumors at varying depths (15 mm, 30 m...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.22184
更新日期:2019-05-01 00:00:00
abstract::Magnetic fields (60 Hz) of 1.5 and 80 microT caused a significant reduction in the weight of Drosophila melanogaster. Moreover, fruit flies in an 80 microT field showed lower developmental stability than either those in a 0 or 1.5 microT field. Developmental instability was measured by fluctuating asymmetry and freque...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:
更新日期:2000-09-01 00:00:00
abstract::To be able to correlate real time membrane potential or ion flux changes with further downstream gene transcription responses due to extremely low frequency (ELF) electromagnetic field (EMF) exposure, we devised an experimental system consisting of a pair of symmetric circular coils. This system can be used on an inve...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.10151
更新日期:2004-01-01 00:00:00
abstract::The effects of exposure to clinical magnetic resonance imaging (MRI) on analgesia induced by the mu opiate agonist, fentanyl, was examined in mice. During the dark period, adult male mice were exposed for 23.2 min to the time-varying (0.6 T/sec) magnetic field (TVMF) component of the MRI procedure. Following this expo...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.2250090208
更新日期:1988-01-01 00:00:00
abstract::The present analysis was stimulated by previous findings on the possible influence of natural ultralow-frequency (ULF; 0.001-10 Hz) geomagnetic field variations on the cardiovascular system and indications of an effect of man-made ULF magnetic fields on the rate of myocardial infarction. In the present study, we consi...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/(SICI)1521-186X(1996)17:6<436::AID-BEM2>3.
更新日期:1996-01-01 00:00:00
abstract::International bodies such as International Commission on Non-Ionizing Radiation Protection (ICNIRP) and the Institute for Electrical and Electronic Engineering (IEEE) make provision for human exposure assessment based on SAR calculations (or measurements) and basic restrictions. In the case of base station exposure th...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.20122
更新日期:2005-09-01 00:00:00
abstract::Through the use of the non-invasive vibrating probe technique for detecting extracellular ionic currents developed in 1974 [Jaffe and Nuccitelli: J Cell Biol 63:614-628, 1974], embryonic currents have been detected in a wide range of animal systems (recently reviewed in [Nuccitelli, Noninvasive Techniques in Cell Biol...
journal_title:Bioelectromagnetics
pub_type: 杂志文章,评审
doi:10.1002/bem.2250130714
更新日期:1992-01-01 00:00:00
abstract::Radiofrequency (5.28 MHz) electromagnetic radiation and low-temperature plasma were applied as short-term (2-15 min) seed treatments to two perennial woody plant species, including Smirnov's rhododendron (Rhododendron smirnowii Trautv.) and black mulberry (Morus nigra L.). Potential effects were evaluated using germin...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.22003
更新日期:2016-12-01 00:00:00
abstract::Serial longitudinal and transverse sections were prepared from roots of Cucumis sativus and Cucurbita maxima that had been exposed/sham-exposed to 60-Hz electric fields for 0-2 days. Field exposures were selected to produce a 10-20% or a 70-80% growth inhibition in whole roots of both species. Cortical cell length and...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.2250080108
更新日期:1987-01-01 00:00:00
abstract::Pregnant squirrel monkeys were exposed to 2450-MHz (CW) microwaves at an equivalent power density of 10 mW/cm2 (SAR 3.4 mW/g) for three hours daily in a cavity-cage module. The exposure began when pregnancy was determined by a hormonal method, and continued through of offspring's first 9.5 months. After irradiation, t...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.2250020305
更新日期:1981-01-01 00:00:00