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  • Articles  (6)
  • ELF  (6)
  • Wiley-Blackwell  (6)
  • Cell Press
  • International Union of Crystallography
  • International Union of Crystallography (IUCr)
  • 1980-1984  (6)
  • Physics  (6)
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  • Articles  (6)
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  • Wiley-Blackwell  (6)
  • Cell Press
  • International Union of Crystallography
  • International Union of Crystallography (IUCr)
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  • 1
    Electronic Resource
    Electronic Resource
    Electric-field exposure of persons using video display units (1984)
    New York, NY [u.a.] : Wiley-Blackwell
    Bioelectromagnetics 5 (1984), S. 1-12 
    Details
    ISSN: 0197-8462
    Keywords: video display unit (VDU) ; electric field ; ELF ; Life and Medical Sciences ; Occupational Health and Environmental Toxicology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Physics
    Notes: Electric fields produced by a selection of video display units have been measured over a frequency range from DC to 1 MHz. The magnitude and the time variation of the electric fields were both recorded by means of a single broadband capacitive sensor located on the surface of a simple simulation of the human body. The electric field at a given location was found to be the sum of three discrete components, each having a different spatial and time variation. These components are produced by, respectively, the charged CRT screen, the flyback transformer, and the low-voltage circuitry. For the units tested, operator exposures are substantially below the limits of existing workplace guidelines.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bem.2250050102
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  • 2
    Electronic Resource
    Electronic Resource
    System for the exposure of cell suspensions to power-frequency electric fields (1984)
    New York, NY [u.a.] : Wiley-Blackwell
    Bioelectromagnetics 5 (1984), S. 117-129 
    Details
    ISSN: 0197-8462
    Keywords: ELF ; electric fields ; exposure systems ; biological effects ; Life and Medical Sciences ; Occupational Health and Environmental Toxicology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Physics
    Notes: 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 size, no electrodes are placed in the conducting growth media: the possibility of electrode contamination of the exposed suspension is thereby eliminated. Electric fields in the range 0.02-3.5 V/m can be produced in a cell culture with total harmonic distortions less than 1.5%. The magnetic field used to produce electric fields for exposure is largely confined within a closed ferromagnetic circuit, and experimental and control cells are exposed to leakage magnetic flux densities less than 5 μT. The temperatures of the experimental and control cell suspensions are held fixed within ±0.1°C by a water bath. Special chambers were developed to hold cell cultures during exposure and sham exposure. Chinese hamster ovary (CHO) cells incubated in these chambers grew for at least 48 h and had population doubling times of 16-17 h, approximately the same as for CHO cells grown under standard cell-culture conditions.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bem.2250050202
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  • 3
    Electronic Resource
    Electronic Resource
    Short-circuit currents, surface electric fields, and axial current densities for guinea pigs exposed to ELF electric fields. Pacific Northwest Laboratory is operated for the Department of Energy by Battelle Memorial Institute. (1984)
    New York, NY [u.a.] : Wiley-Blackwell
    Bioelectromagnetics 5 (1984), S. 361-364 
    Details
    ISSN: 0197-8462
    Keywords: electric fields ; ELF ; 60 Hz ; guinea pig ; dosimetry ; Life and Medical Sciences ; Occupational Health and Environmental Toxicology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Physics
    Notes: Short-circuit currents, surface electric fields, and axial current densities were measured in electrically grounded guinea pigs exposed to a uniform, vertical, ELF electric field. These data are 70-110% of corresponding values obtained in grounded rats exposed to the same electric field.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bem.2250050310
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  • 4
    Electronic Resource
    Electronic Resource
    Calibration of flat 60-Hz electric field probes (1984)
    New York, NY [u.a.] : Wiley-Blackwell
    Bioelectromagnetics 5 (1984), S. 447-450 
    Details
    ISSN: 0197-8462
    Keywords: calibration ; electric field ; ELF ; instrumentation ; measurement ; Life and Medical Sciences ; Occupational Health and Environmental Toxicology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Physics
    Notes: The influence of nearby ground planes, perturbation of surface charge distributions, and fringing fields on the electric field between parallel plates are characterized to define a parallel plate system that can be used to calibrate flat 60-Hz electric field probes.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bem.2250050410
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  • 5
    Electronic Resource
    Electronic Resource
    A behavioral response of swine to a 60-Hz electric field (1982)
    New York, NY [u.a.] : Wiley-Blackwell
    Bioelectromagnetics 3 (1982), S. 443-451 
    Details
    ISSN: 0197-8462
    Keywords: miniature swine ; ELF ; 60-Hz electric field ; behavior ; Life and Medical Sciences ; Occupational Health and Environmental Toxicology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Physics
    Notes: It has been shown that rats, given the choice, will spend more time out of a 60-Hz electric field than in it at field strengths ≥ 75 kV/m. This paper describes research to examine the relevance of these data to a different species, the pig. Miniature pigs that had been exposed to a 60-Hz electric field at 30 kV/m for 20 h/day, 7 days/week for as long as 6 months, were tested for their preference for the presence or absence of the field during a 23.5-h period. Similar to earlier results with rats, miniature pigs spent more time out of the electric field than in it during the sleeping period.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bem.2250030407
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  • 6
    Electronic Resource
    Electronic Resource
    Inhibition of growth rate of escherichia coli induced by extremely low-frequency weak magnetic fields (1981)
    New York, NY [u.a.] : Wiley-Blackwell
    Bioelectromagnetics 2 (1981), S. 285-289 
    Details
    ISSN: 0197-8462
    Keywords: growth inhibition ; magnetic fields ; ELF ; Escherichia coli ; Life and Medical Sciences ; Occupational Health and Environmental Toxicology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Physics
    Notes: Cultures of Escherichia coli kept at 0 °C in a phosphate buffer solution were exposed to a sinusoidal weak 60- or 600-Hz magnetic field of strength 2 × 10-3 Tesla. A decrease of more than 40% in bacterial count was observed after a 60-h exposure to the magnetic field. Electron micrographs of exposed bacteria show ruptured cell walls, possibly due to the breaking away of flagella under the influence of the sinusoidally varying electromotive force.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bem.2250020310
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