CHANGES OF THE BLOOD COMPOSITION FOLLOWING SHORT-TERM EFFECT OF CONSTANT MAGNETIC FIELD ON THE HUMAN ORGANISM
G. A. Stasiuk · 1973
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G. A. Stasiuk · 1973
Johnson RC, Ecker HA, Hollis JS · 1973
Far-field antenna pattern measurements on conventional ranges are often impractical due to long distances, difficulty moving antennas, or excessive time requirements. Three basic techniques for accomplishing this have proven to be successful. The first technique samples aperture phase and amplitude distributions with a scanning field probe and transforms the measured distributions to the far field. The second technique creates a plane wave that is approximately uniform in amplitude using a feed and large reflector near the test antenna. The third technique focuses the test antenna within the radiating near-field region, measures patterns at the reduced range, and then refocuses the antenna to infinity.
Elizabeth A. Schiller, Dan E. Pratt · 1973
Charlotte Silverman · 1973
Frank A. Brown, Jr., Carol S. Chow · 1973
W. D. Skidmore, S. J. Baum · 1973
Erythrocyte counts, radioactive iron incorporation, and leukocyte counts did not differ between groups. Bone marrow cellularity, chromosome aberrations, blood chemistry, fetal development, histology, leukemia, and mammary tumor assays showed no acute effects.
B. Stefanov · 1973
Brodkin RH, Bleiberg J · 1973
Michaelson SM · 1973
Yu. A. Kholodov · 1973
The book traces the history of magnetotherapy from antiquity through the 17th century and the 1780 Paris commission that concluded magnets directly influence nerves. Romanian physicians treating 4,000 patients observed favorable effects on nervous system disorders, chronic illnesses, and skin diseases. A 1966 Moscow conference heard reports that magnetic bracelets normalized blood pressure in early-stage hypertension and reduced subjective symptoms in nervous and cardiovascular diseases.
Col. L. T. Odland, USAF, MC, and associates · 1973
Vernon R. Reno, Dietrich E. Beischer · 1973
Unknown authors · 1973
The report summarizes 1973 activities of a federal multiagency program coordinated by the Office of Telecommunications Policy to assess biological effects of nonionizing electromagnetic radiation. The program was recommended by the Electromagnetic Radiation Management Advisory Council established in 1968-69 to advise on possible side effects and the adequacy of control of electromagnetic radiations associated with the use of the spectrum. The purpose of the cooperative undertaking is to ensure well-being without unnecessarily restricting use of the electromagnetic spectrum and its benefits.
P. Lommatzsch, B.-D. Bohne, W.-D. Ulrich, R. Kühn · 1973
Maggi G, Carrescua V · 1973
G. G. Wright · 1973
Chris Dodge · 1973
The study examined 20 rabbit eyes with one eye per rabbit serving as a control. Microwave exposure caused cataracts on the posterior cortical layers near the horizontal suture appearing as lace-like structures that were regressable. Microscopic examination confirmed the reversibility of the microwave-induced cataracts.
Paul E. Tyler, M.D. · 1973
Unknown authors · 1973
Unknown authors · 1973
Reaction Instruments' dual directional coupler operates above 200 watts from 20 kHz to 2 MHz, and the complete system achieves +12 percent accuracy over its specified ranges. Electronic power meters measure up to kilowatts from 5 kHz to 100 kHz, while Hall-effect meters reach several kilowatts up to 50 kHz with one model extending to 1 MHz.
Unknown authors · 1973
The publication explains that microwaves are a nonionizing form of electromagnetic energy between radio waves and infrared waves. Most studies have shown no significant nutritional differences between microwave and conventional cooking methods. No documented radiation injuries have occurred from microwave ovens used according to manufacturer instructions, although pacemaker interference has been associated with proximity to operating ovens. The FDA established a radiation control standard requiring ovens manufactured after October 6, 1971 to limit emissions and have two safety interlocks. Ovens meeting the federal standard are considered safe for home use when operated according to instructions.
Styblova V., Holovska V., Spondova V., Zubrik L. · 1973
The mean daily irradiation value was 30.7 with a range of 6.5 to 97.1, and the measurement error was stated as + 30%. No significant differences in EEG findings were found between the exposed group and the control group. A significant coincidence was found between headache incidence and EEG abnormality percentage, particularly for migraine. The authors concluded that electromagnetic energy at the exposure dose did not damage the central nervous system and that EEG abnormalities should be assessed in relation to migraine incidence.
N.E. Anden et al. · 1973
BIGU DEL BLANCO, J. · 1973
J. B. Block, C. G. Zubrod · 1973