Browse 6,486 peer-reviewed studies on electromagnetic field health effects from 4 research libraries.
Showing all 6,486 studies
S. J. Webb, D. D. Dodds · 1968
Researchers exposed Escherichia coli B to 136 gc microwaves at about 10 W for up to 4 hours. When cells were exposed immediately after washing, no cell divisions occurred but cell counts did not decrease. When cells were pre-incubated for 90 minutes before exposure, cell numbers approximately doubled before inhibition began.
P. O. Vogelhut · 1968
The paper describes microwave techniques for investigating the role of water in living systems, including differential volumetric techniques and Faraday rotation. Faraday rotation measurements on hemoglobin at various hydration levels found a critical hydration level of 0.13 g H,O/g Hb where hydrogen bonds form and the rotation angle decreases exponentially. Experiments to measure bound water changes during enzyme-substrate interactions are in progress, and the technique was applied to ATP-actinomyosin interaction measuring water expelled during the reaction.
Jerome B. Westin, M.D. · 1968
Sol M. Michaelson · 1968
The most important biological effect of microwave exposure is the conversion of absorbed energy into heat. Thermal effects are well documented while evidence for nonthermal effects is only suggestive.
Allan H. Frey, Elwood Seifert · 1968
Lt Col N.A. D'yarenko, M.C. · 1968
The exercises included walking, running, active sports of an emotional nature, and attention span exercises. Operators who systematically did the exercises made 39% fewer errors in performance. Their capability to estimate a situation and define coordinates improved by 18 to 20% on average. Efficiency improved overall during both night and day shifts.
И. Д. Боенко, Ф. Г. Шахгельдян · 1968
The study aimed to examine the role of vascular reflexogenic zones in the effects of electromagnetic oscillations on the organism. The study investigated the influence of audio-frequency electromagnetic fields on blood coagulation.
A. S. Presman · 1968
K. MAJEWSKA · 1968
Todorow N, Kardaschew Z, Peschew N · 1968
J. C. LAWRENCE · 1968
Unknown authors · 1968
L. A. Komarova · 1968
David S. Rosenthal, Steven G. Beering · 1968
Researchers reported a case of a 31-year-old man repeatedly exposed at close range to high-powered microwave emission over a four-year period. Testicular biopsy revealed tubular atrophy with focal necrosis and interstitial edema. Hypospermia continued for at least a year after the patient's last exposure.
Edelwein Z · 1968
Herman P. Schwan · 1968
Jana Pazderova · 1968
H. W. Ludwig · 1968
JAMES H. McELHANEY, RICHARD STALNAKER, ROBERT BULLARD · 1968
Wellington Moore, Jr., D.V.M., Ph.D. · 1968
F. G. Hirsch, D. R. McGiboney, T. D. Harnish · 1968
Henry M. Hoffart · 1968
The paper describes the EMI control engineer's assignment to direct reduction of equipment's spurious electromagnetic energy generation and susceptibility. The author states that EMI engineers pay little attention to the effect of electromagnetic energy on living matter during design and test phases. New EMI specifications require tests at field intensities up to 20 V/m, which can expose test personnel to those fields in shielded areas.
B.G. AFANAS-YEV, I.M. Suvorov · 1968
Researchers studied 38 radio operators with 200 to 1800 hours of exposure and 22 controls under similar conditions. They assessed adrenal cortex function by measuring urinary 17-ketosteroids, 17-oxycorticosteroids, and sodium-potassium ratio. No reliable difference was found in sodium-potassium coefficient between exposed and control groups. Steroid excretion did not differ between operators with more than 300 hours and less than 200 hours of exposure. The androgenic, glucocorticoid, and mineralocorticoid functions of the adrenal cortex did not differ from the norm in the persons who were investigated.
Stanisław Barański, Zbigniew Edelwejn · 1968
Researchers used 65 male rabbits, exposing one group to a single 20-minute pulse-modulated 10 cm microwave at 20 mW/cm² and another group to chronic 3-hour daily sessions totaling 70–80 hours at 7 mW/cm². In single-exposure rabbits pretreated with phenactil, microwaves still produced EEG desynchronization; cardiazole triggered a threshold reaction at a lower dose, while strychnine evoked a weaker spike response than in controls. Chronic exposure produced persistent EEG desynchronization with high amplitude and reduced phenactil synchronization. Cardiazole caused violent convulsions at 3 mg/kg and strychnine produced spikes in most animals with two deaths.
Allan Fraser, Allan H. Frey · 1968
Researchers stimulated blue crab nerves with a 5 sec on, 5 sec off pattern for 4 minutes at 20 pulses per second. They detected micron-wavelength emission from the live nerves using a Barnes R-8T1 infrared radiometer. The emission magnitude was 3 X 10-° w from a 0.5 mm? nerve surface or 6 uw/cm?, and the chance probability was 0.008.