Browse 6,486 peer-reviewed studies on electromagnetic field health effects from 4 research libraries.
Showing 2,816 studies in Whole Body / General
A. M. Roberts · 1969
Brief exposure to light causes structural changes in the phototransduction process of invertebrate retinal cells. Honey bee colour vision is trichromatic, with visual cells excited into three types according to peak sensitivities.
Leo A. Bornstein · 1969
Freeman W. Cope · 1969
The author develops an elementary theory of sodium transport across an idealized membrane by chemiperistaltic waves. The model assumes waves of configurational change in cell surface proteins that alter ion complexing preference and water structure. The theory is consistent with frog skin experiments showing only about 8 per cent of total sodium participates in transport and most sodium is complexed.
Robert L. Bell et al. · 1969
Freeman W. Cope · 1969
Norbert T. Christman et al. · 1969
The study was designed to evaluate the feasibility of producing sleep in a variety of subjects without the use of sedatives and narcotics. The study used a two-fold approach: detecting physiological changes in evoked scalp potentials from small rectangular currents averaging 0 to 1.5 milliamperes, and detecting changes in evoked potentials from the induced sleep state. Squirrel monkeys were used initially to standardize the recording technique and determine physiological effects of the currents, followed by human volunteers for the quantitative sleep study.
D. H. Reigel et al. · 1969
Major abdominal surgery was performed under electroanesthesia in ten unintubated stump-tail macaque monkeys, with excellent muscle relaxation and complete analgesia at optimal current levels. Simultaneous monitoring of cardiovascular and respiratory systems showed no significant change. Respiratory rate became regular but about 10% slower at full current while minute volume, arterial pH, and blood gas tensions remained unchanged, and only slight blood pressure changes occurred with normal central venous pressure and no extra ECG dispersion.
J.A. TANNER, C. ROMERO-SIERRA, F. VILLA · 1969
A Leghorn chicken was exposed to 9.29 GHz pulsed microwaves at 100 mi/om@ while muscle activity was recorded with an 8-channel pen recorder. At radiation onset, muscle activity increased on the side facing the field and decreased almost to paralysis on the opposite side. After the field was turned off, the chicken recovered normal posture and muscle activity within seconds.
James G. Terrill, Jr. · 1969
D. E. Carroll, Anthony Loh · 1969
Willard E. Caldwell, Earl Gaddis, Morton Werber · 1969
Researchers built an Operant Electromagnetic Chamber with a shielded section and an unshielded section, and exposed animals to 8840 mc radio frequency at a power density of 2.2 to 2.5 milliwatts per square inch. No significant difference in shielded-chamber time occurred when the radio frequency was on during the first half of trials, but when it was on during the second half the animals stayed in the shielded area significantly longer with the frequency off (p < .01).
JOLY, R., PLURIEN, G., DROUET, J., ET AL · 1969
Peter V. Hobbs, L. F. Radke, Ling Y. Wei · 1969
Unknown authors · 1969
Researchers observed that the yield of two-week rice seedlings fluctuated significantly over 20 days and correlated negatively with solar chromospheric activity indices. In a controlled experiment, water uptake of germinating bean seeds showed a strong negative correlation with geomagnetic activity indices over nine days. Both experiments found that biological variability increased with higher solar activity indices. The authors concluded that solar activity slows growth and germination while increasing their variability.
J. A. Tanner, C. Romero-Sierra, S. J. Davie · 1969
Joseph H. Vogelman · 1969
Unknown authors · 1969
Researchers placed laboratory rats in an irradiation tank circuit to test their tolerance to radiation at 6, 14, and 21 MHz. The tests showed harmful effects to the gastrointestinal, cardiovascular, respiratory, and genito-urinary systems, peaking at 35 days after irradiation. No changes were detected in the endocrine system of the test animals.
Unknown authors · 1969
Bellwinkel, H. · 1969
H. P. SCHWAN · 1969
R. Murray et al. · 1969
William E. Elzinga · 1969
K. N. May · 1969
Sol M. Michaelson · 1969
William Walden Mumford · 1969