Postmortem changes of the dielectric properties of bovine brain tissues at low radiofrequencies.

abstract：:Previously, we have reported that exposure to 50 Hz coherent sinusoidal magnetic fields (MF) for 24 h inhibits gap junction intercellular communication (GJIC) in mammalian cells at an intensity of 0.4 mT and enhances the inhibition effect of 12-O-tetradecanoylphorbol-13-acetate (TPA) at 0.2 mT. In the present study, w...

journal_title：Bioelectromagnetics

authors： Zeng Q,Ke X,Gao X,Fu Y,Lu D,Chiang H,Xu Z

更新日期：2006-05-01 00:00:00

abstract：:Extremely low-frequency (ELF) magnetic field exposure systems are usually subject to field disturbances induced by external sources. Here, a method for designing a feedback control system for cancelling the effect of external ELF magnetic field disturbances on the magnetic field over the exposure area is presented. Th...

journal_title：Bioelectromagnetics

authors： Wang PK

更新日期：1997-01-01 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

authors： Graham JH,Fletcher D,Tigue J,McDonald M

更新日期：2000-09-01 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：:Exposure systems that provide good magnetic field uniformity, minimum stray fields, and minimal heating, vibration, and hum, as well as capability for true sham exposure in which current flows in the coils, are needed to determine rigorously the biological effects of weak magnetic fields. Designs based on acrylic poly...

journal_title：Bioelectromagnetics

authors： Wilson BW,Caputa K,Stuchly MA,Saffer JD,Davis KC,Washam CE,Washam LG,Washam GR,Wilson MA

更新日期：1994-01-01 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：:In this study, the difference between the risk perception of electromagnetic waves from cellular phones and the risk perception of other factors such as environment and food was analyzed. The cause of the difference in the psychological and social factors that affect the group with high risk perception of electromagne...

journal_title：Bioelectromagnetics

authors： Kim K,Kim HJ,Song DJ,Cho YM,Choi JW

更新日期：2014-05-01 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

abstract：:No causal treatment for chemotherapy-induced peripheral neuropathy (CIPN) is known. Therefore, there is an urgent need to develop a therapy for CIPN. Only scarce clinical data are available concerning magnetic field therapy (MFT) in this context. We conducted a unicentric, randomized, double-blind, placebo-controlled ...

journal_title：Bioelectromagnetics

authors： Rick O,von Hehn U,Mikus E,Dertinger H,Geiger G

更新日期：2017-02-01 00:00:00

abstract：:The temperature distribution inside a lossy sphere resulting from the absorption of microwave energy was approximated by successive numerical iterations. of the thermal energy equation. Heat transfer within the sphere by conduction was considered. In the model energy was not dissipated by convection but was contained ...

journal_title：Bioelectromagnetics

authors： Janna WS,Russo EP,McAfee R,Davoudi RM

更新日期：1980-01-01 00:00:00

abstract：:Stress proteins are important in protection during cardiac ischemia/reperfusion (cessation and return of blood flow) and are reportedly induced by electromagnetic (EM) fields. This suggests a possible ischemia protection role for EM exposures. To test this, chick embryos (96 h) were exposed to 60 Hz magnetic fields pr...

journal_title：Bioelectromagnetics

authors： DiCarlo AL,Farrell JM,Litovitz TA

更新日期：1998-01-01 00:00:00

abstract：:Electric fields induced in a conductive body by the magnetic field of a current-carrying wire were analyzed theoretically and experimentally to assess the dosimetric importance of highly nonuniform, field-exposure conditions. Experimentation revealed that a 60-Hz magnetic field was inversely proportional to the radius...

journal_title：Bioelectromagnetics

authors： Robertson-De Mers KA,Miller DL

更新日期：1992-01-01 00:00:00

abstract：:This study examines childhood cancer risk in relation to certain factors likely to indicate magnetic field exposure from ground currents in the home. Substantial ground currents are most often found in homes having conductive plumbing, in which an uninterrupted metallic path in the water pipes and water main connects ...

journal_title：Bioelectromagnetics

authors： Wertheimer N,Savitz DA,Leeper E

更新日期：1995-01-01 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：: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：:To investigate the ability of prokaryotic microorganisms to activate strategies in adapting themselves to the environmental stress induced by exposure to extremely low frequency electromagnetic fields (ELF-EMF), cultures of Escherichia coli ATCC 700926 exposed at 50 Hz EMF (0.1, 0.5, 1.0 mT), and the respective sham-e...

journal_title：Bioelectromagnetics

authors： Cellini L,Grande R,Di Campli E,Di Bartolomeo S,Di Giulio M,Robuffo I,Trubiani O,Mariggiò MA

更新日期：2008-05-01 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：: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 widespread use of mobile phones and Wi-Fi-based communication devices makes exposure to radiofrequency electromagnetic fields (RF-EMF) unavoidable. Previous experiments have revealed the tumor-promoting effects of non-ionizing RF-EMF in adult carcinogen-treated mice in utero. To extend these investigations, we tes...

journal_title：Bioelectromagnetics

authors： Lerchl A,Klose M,Drees K (née Grote)

更新日期：2020-12-01 00:00:00

abstract：:Cell-based or magnetic field therapies as alternative approaches to pain management have been tested in several experimental pain models. The aim of this study therefore was to investigate the actions of the cell-based therapy (adipose tissue derived mesenchymal stem cells; ADMSC) or pulsed magnetic field (PMF) therap...

journal_title：Bioelectromagnetics

authors： Mert T,Kurt AH,Altun İ,Celik A,Baran F,Gunay I

更新日期：2017-05-01 00:00:00

abstract：:Mobile phone use in the United Kingdom and other countries has risen steeply since the early 1990's when the first digital mobile phones were introduced. There is an ongoing controversy about whether radio frequency (RF) exposure from mobile phones increases the risk of brain cancer. However, given the widespread use ...

journal_title：Bioelectromagnetics

authors： de Vocht F,Burstyn I,Cherrie JW

更新日期：2011-07-01 00:00:00

abstract：:This study describes the effects of a static magnetic field (SMF) on cell growth and DNA integrity of human umbilical vein endothelial cells (HUVECs). Fast halo assay was used to investigate nuclear damage; quantitative polymerase chain reaction (QPCR), standard PCR, and real-time PCR were used to evaluate mitochondri...

journal_title：Bioelectromagnetics

authors： Potenza L,Martinelli C,Polidori E,Zeppa S,Calcabrini C,Stocchi L,Sestili P,Stocchi V

更新日期：2010-12-01 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：: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

authors： Rao RR,Kisaalita WS

更新日期：2004-01-01 00:00:00

abstract：:C57/B1 mice were exposed during pregnancy (gestation days 0-19) to a 20 kHz magnetic field (MF). The asymmetric sawtooth-waveform magnetic field in the exposed racks had a flux density of 15 microT (peak to peak). After 19 days, the exposure was terminated, and the mice were housed individually under normal laboratory...

journal_title：Bioelectromagnetics

authors： Dimberg Y

更新日期：1995-01-01 00:00:00

abstract：:The effects of hyperthermia, alone and in conjunction with microwave exposure, on brain energetics were studied in anesthetized male Sprague-Dawley rats. The effect of temperature on adenosine triphosphate concentration [ATP] and creatine phosphate concentration [CP] was determined in the brains of rats that were main...

journal_title：Bioelectromagnetics

authors： Sanders AP,Joines WT

更新日期：1984-01-01 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

authors： Ptitsyna NG,Villoresi G,Kopytenko YA,Kudrin VA,Tyasto MI,Kopytenko EA,Iucci N,Voronov PM,Zaitsev DB

更新日期：1996-01-01 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

authors： Iteğin M,Günay I,Loğoğlu G,Isbir T

更新日期：1995-01-01 00:00:00

abstract：:This study analyzes if an external magnetic stimulus (2 kHz and approximately 0.1 μT applied near frontal cortex) influences working memory, perception, binary decision, motor execution, and sustained attention in humans. A magnetic stimulus and a sham stimulus were applied to both sides of the head (frontal cortex cl...

journal_title：Bioelectromagnetics

authors： Navarro EA,Gomez-Perretta C,Montes F

更新日期：2016-01-01 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