Relevancy of Experimental Studies of Microwave-Induced Cataracts to Man
Sol M. Michaelson · 1972
Browse 6,486 peer-reviewed studies on electromagnetic field health effects from 4 research libraries.
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Sol M. Michaelson · 1972
William D. Hurt, M.S. · 1972
F. G. Hirsch, M.D. and A. Bruner, Ph.D. · 1972
Jeffrey Frey, Raymond Bowers · 1972
The article describes how inexpensive solid-state microwave sources will enable massive new applications in homes, vehicles, and commercial systems. It identifies spectrum congestion as a growing problem with current allocation methods becoming inadequate. The authors note the FCC can regulate power density based on physiological studies but has not yet issued such regulations. They list specific questions including potential health hazards from increased microwave exposure. The article recommends a complete spectrum usage database and new frequency assignment principles.
A. Frey, R. Messenger, E. Eichert · 1972
The study investigated the RF sound phenomenon, where humans perceive sound when their head is illuminated with pulsed RF energy. In phase one, a portable RF sound demonstration unit operating at 1.2 GHz was assembled and used to demonstrate the phenomenon. Phase two experiments showed that perceived loudness is a function of peak power density once a minimum pulse width is used, and that pulse repetition rate is the dominant parameter for sound quality. A threshold peak power density of 80 mW/cm² was derived by extending the loudness curve, though not with optimal parameters, and average power density was not particularly meaningful for this phenomenon. Phase three found that vocoder technology and periodicity pitch rules could not generate speech perception via RF sound.
Dietzel F, Kern W, Steckenmesser R · 1972
Researchers exposed 749 pregnant rats to a single abdominal short-wave treatment during the first 16 days of pregnancy, raising rectal temperatures to about 40° within 10 minutes. Treatment on the first two days of pregnancy caused 65% embryo deaths compared to 25% in controls. Embryonic injuries occurred only when maternal rectal temperature reached at least 40° for 10 minutes; lower temperatures caused no injuries.
F.A. Kolodub, G.I. Yevtushenko · 1972
Richard F. Boggs, Albert P. Sheppard, Alma Jeanne Clark · 1972
Researchers exposed in vitro platelet-rich human blood plasma to 2450 MHz continuous-wave microwave radiation at power densities from 10 to 280 mW/cm² for up to 24 hours while keeping the temperature below 37°C. When plasma temperature was raised above 37°C, microwave heating produced smaller changes in coagulation time and clot strength than conventional radiant heating did.
Alexander Dubrov · 1972
Dubrov worked in heliobiology studying the effects of solar activity and natural magnetic and electric fields on living organisms. He found that cell membrane permeability is under direct control of the geomagnetic field. Chizhevsky showed that epidemics, diseases and death rates follow 11-year cycles similar to sunspot cycles.
STANISLAW BARANSKI, M.D. · 1972
Y. Ishida · 1972
I. L. Degen · 1972
S. Hopfer · 1972
The probe is designed to cover 10 MHz to 20 GHz with full-scale sensitivities from 100 μW/cm² to 10 mW/cm². Calculations predict a flat characteristic from 10 MHz to 20 GHz and a sensitivity more than 23 dB above thermo-electric probes. Initial measurements on the prototype confirmed a flat characteristic through 18 GHz and a 400-fold sensitivity improvement.
Chief, Bureau of Medicine and Surgery · 1972
The instruction outlined potential health hazards from microwave equipment including radar and set maximum personnel exposure levels. It described that below 1 GHz energy penetrates deep tissues while above 3 GHz heating occurs near the body surface. The eyes and testicles were identified as the most vulnerable organs; the lens can develop cataracts from intense microwave radiation, and testicular effects are considered temporary. Exposure limits were set at 10 mW/cm² for exposures greater than 30 seconds and 300 mJ/cm² for intermittent exposures of 3 to 30 seconds. Medical surveillance required preplacement and periodic examinations, including a comprehensive ophthalmological examination with slit-lamp evaluation, and immediate examination after overexposure above 50 mW/cm².
Byron D. McLees, E. D. Finch, M. L. Albright · 1972
Unknown authors · 1972
Daniel L. Dawes, Jerry W. Gaskill · 1972
Researchers modeled a double-shelled spherical acrylic plastic enclosure irradiated with 2450-MHz microwaves. They compared standing wave patterns for chambers made of Plexiglas, Teflon, and styrofoam. Plexiglas and Teflon chambers produced similar standing wave patterns with hot spots more than three times the incident field strength. Styrofoam showed a much smaller standing wave pattern with a hot spot less than 6 percent above the incident field. The authors concluded styrofoam would be a much better material for exposure cells if it meets mechanical requirements.
Kiepenheuer, K.O. · 1972
Leroy S. Lavine et al. · 1972
B. Dörne, R. Gäbele, H. Hille · 1972
G. Henneberg, Helga Jordanski · 1972
Robert M. Lebovitz · 1972
Unknown authors · 1972
Ф. А. Колодуб, Г. І. Батушенко · 1972
Saul W. Rosenthal · 1972
Rosenthal noted that U.S. and Soviet microwave safety standards differed by three orders of magnitude, indicating a serious lack of knowledge about biological effects. He also noted the Occupational Safety and Health Act of 1970, which gave the Labor Department responsibility for occupational standards covering nonionizing radiation. Rosenthal stated that no coordinated research program existed to establish a scientific basis for determining potential hazards of nonionizing radiation.