Arthur W. Guy, James C. Lin, C.K. Chou · 1974
Researchers conducted in vivo and in vitro studies of nervous tissues exposed to microwave radiation. Continuous-wave microwaves affected conduction and transmission latencies and amplitudes of evoked potentials in the central nervous system of anesthetized cats, isolated cat nerves, and rabbit ganglia similarly to localized conduction heat. Temperature rises were always associated with any observable changes in the nervous tissues exposed to continuous-wave irradiation. The threshold for latency changes occurred between 2.5 and 5.0 W/kg of absorbed power density, about one-quarter to one-half of the normal metabolic rate of brain tissue.
Maurice J. Oringer · 1974
LT T. Moslak, USNR-R · 1974
Joan Arehart-Treichel · 1974
Rein, R. · 1974
Unknown authors · 1974
Researchers broke two legs in each of 43 dogs and applied a pulsing electromagnetic field to one leg for 28 days while the other leg served as a control. The fractures exposed to the field healed better than the unexposed fractures.
Bassett, Pawluk, Pilla · 1974
Researchers used pulsing electromagnetic fields inductively coupled across skin to study bone repair in adult beagles that had undergone bilateral fibular osteotomies. In the second series, of the 13 dogs analyzed, 10 demonstrated higher load values in the treated legs, a result significant by the sign test at P <.07. In the first series, with a circuit repeating at 1 hz, the mean load values revealed no statistically significant difference between stimulated legs and their controls.
H. H. Seliger et al. · 1974
The transients were confirmed to be thermal in origin by temperature dependence. Similar transients were observed in biological tissues. At human hearing threshold, the transients produce about 90 db in the audible band, above the expected bone-conduction threshold.
Unknown authors · 1974
Many investigations suffer from inadequacies of either technical facilities and energy measurement skills or insufficient control of the biological specimens and the criteria for biological change. A large body of dependable data on the biologic effects of microwave exposure has been accumulated without any incontrovertible evidence of subtle, longterm, or cumulative effects. The apparent differences in U.S. and Eastern European standards are based not on actual factual information but on differences in basic philosophy. These differences appear in the areas of industrial hygiene, basic scientific research, and reporting of scientific data.
Vetter R J, Ziemer P L, Puntenney D · 1974
Livesay DE, Chen KM · 1974
Arthur W. Guy, James C. Lin, Piro Kramar, Ashley F. Emery · 1974
Gideon Kantor, Paul S. Ruggera · 1974
Yu. A. Kholodov (ed.) · 1974
Aaronson · 1974
Dr. Moss and Mr. Johnson worked for more than two years on the replication. Kendall Johnson made more than five hundred tries in September 1973.
Eldon Byrd · 1974
The author states that the paper will explore recent findings concerning possible external and internal electrical influences on psychodynamic development and states. Rhythms are described as the central theme, with their initiation, maintenance, and correlation at the core of normal and pathological psychodynamic states. Severe brain damage eliminates adrenal steroid hormone circadian rhythm. The deaf can respond to pulse-modulated electronic transmitters, implying a possible cellular response integrated by an organ or the brain.
Arthur W. Guy, James C. Lin, Piro O. Kramar, Ashley F. Emery · 1974
Absorbed power peaked in the vitreous body at 0.92 mW/cm² per 1 mW/cm² incident power. Eye temperatures reached plateaus after 15-20 minutes, with 100 mW/cm² staying below 41°C while 200 and 300 mW/cm² exceeded 41°C. Eighty-one rabbits were used to determine the cataractogenic threshold for 2450 MHz radiation.
P. Polson, D.C.L. Jones, A. Karp, J. S. Krebs · 1974
J. L. Lords, C. H. Durney, A. M. Borg, C. E. Tinney · 1974
Researchers exposed isolated turtle hearts submerged in Ringer's solution to continuous 960-MHz microwave irradiation while measuring heart rate and force of contraction. At a total input power of 100 mW, corresponding to an estimated 3.3 mW absorbed by the heart, the average heart rate decreased (bradycardia). The authors concluded that the bradycardia could not be explained by heating because raising the bath temperature increased heart rate. They hypothesized that microwave stimulation of nerve remnants in the heart caused the bradycardia.
A. A. Marino, T. J. Berger, R. O. Becker · 1974
Stuart O. Nelson, Laverne E. Stetson · 1974
Researchers reviewed principles for controlling stored-product insects with radio-frequency energy and presented data on dielectric properties of insects and grain. Experimental results confirmed that 39 MHz treatment achieved complete weevil mortality at lower wheat temperatures than 2450 MHz treatment. Delayed mortality was also more severe at 39 MHz than at 2450 MHz. Cost estimates indicated RF methods might be three to five times more expensive than chemical controls.
Donald I. McRee · 1974
Michaelson SM · 1974
The paper reviews the International Symposium on Biologic Effects and Health Hazards of Microwave Radiation held in Warsaw 15-18 October 1973 and the WHO Evaluation Group meeting in Copenhagen 22-23 October 1973. Over fifty participants from 12 countries and representatives from 5 international organizations attended, and thirty-eight papers from nine countries were presented. Symposium authors agreed that measurement of incident fields and energy absorption posed multiple problems and that accurate dosimetric measurement could only be achieved to a small extent.
S. O. Nelson · 1974
King, Hunt, Phillips · 1974
