extremely low frequency


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extremely low frequency

[ek′strēm·lē ′lō ′frē·kwən·sē]
(communications)
A frequency below 300 hertz in the radio spectrum. Appreviated ELF.
References in periodicals archive ?
[29.] Raus B.S., Selakovic V, Radenovic L., Prolic Z., Janac B.: Extremely low frequency magnetic field (50 Hz, 0,5 mT) reduces oxidative stress in brain of gerbils submittendo global cerebral ischemia.
Profice et al., "Does exposure to extremely low frequency magnetic fields produce functional changes in human brain?," Journal of Neural Transmission (Vienna), vol.
Study the effect of extremely low frequency electromagnetic fields on some blood serum's lipoproteins, liver enzymes and P448/P450 cytochrome enzyme system in NMRI female mice.
Male propertion in offspring of parents exposed to strong static and extremely Low frequency electromagnetic fields in Norway.
Quoting the academy, "Current medical literature raises credible questions about genetic and cellular effects, hormonal effects, male fertility, blood-brain barrier damage and increased risk of certain types of cancers from radio frequency and extremely low frequency levels similar to those emitted from 'smart meters.' Children are placed at particular risk for altered brain development, and impaired learning and behavior."
Extremely low frequency electromagnetic fields as effectors of cellular responses in vitro: possible immune cell activation.
Direct measurements of extremely low frequency magnetic fields in the workplace might provide further information.
A pilot study has been conducted to investigate whether multiple electrophysiological activities could be altered when exposed to an extremely low frequency pulsed electromagnetic field (Cvetkovic et al.).
Results of the environmental assessment at Concord released by NSW Health showed levels of exposure to ionising radiation, radiofrequency (RF) radiation, extremely low frequency (ELF) magnetic fields, and drinking water contaminants were all below allowable limits.
The HAARP instrument is critical to the understanding and prediction of space weather for satellite operations at low earth orbit and is invaluable as a ground-based test bed for applications requiring a flexible source of high frequency, extremely low frequency, and very low frequency radiation.
Japan's industrial safety agency will set up standards early next year to protect the public from adverse health effects of exposure to extremely low frequency magnetic fields that exist close to power lines and appliances whenever there are electric currents, officials said Monday.

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