A closed loop life support system for determining metabolic gases produced by small animals
Closed loop life support system for determining metabolic gases from rats
Binks, A. E.↗
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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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The condition of the lymph glands in animals during single and repeated accelerations
Acceleration effects on functional activity of dog lymph glands
Afanasyev, Yu. I.↗
Changes of certain biochemical indices in animals during the effect of acceleration after gamma-irradiation
Tissue respiration and hydrogenase changes in gamma irradiated mice during acceleration
Abaturova, Ye. A.↗
Hematological and pathomorphological changes in animals under the conditions of an experiment which models the effect of ionizing radiation and flight factors on an organism
Hematological and pathomorphological changes in guinea pigs under simulated ionizing radiation and space flight conditions
Gaydamakin, N. A.↗
The survival rate of animals following general gamma-irradiation while shielding the abdominal region
Shielding effects on rat survival rates after gamma irradiation
Razgovorov, B. L.↗
Biochemical and metabolic effects of a six- month exposure of small animals to a helium- oxygen atmosphere
Biochemical and metabolic effects of exposure of mice to helium-oxygen atmosphere
Cohen, J. D.↗
D-lactate specific pyridine nucleotide lactate dehydrogenase in animals.
Pyridine nucleotide-linked D-lactate dehydrogenase stereospecificity in various species of invertebrates
Kaplan, N. O.↗
Simulation of the stress environment of a rocket-borne animal centrifuge.
Gravity preference tests on rats subjected to simulated Aerobee 150 A rocket launching and flight in ground based spiral centrifuge
Broderson, A. B.↗
Detection and evaluation of defenses in small animals to simulated spacecraft environments Final report, 1 Sep. 1968 - 31 Aug. 1969
Evidence for maintenance or breakdown of natural or acquired resistance of guinea pigs in simulated spacecraft environment
Guthrie, R. K.↗
Biological effects of prolonged exposure of animals to unusual gaseous environments Semiannual report, 1 Sep. 1969 - 28 Feb. 1970
Lung weights of rats exposed to hyperoxic gas mixtures with He or no inert gas diluents substituting N2
Weiss, H. S.↗
A method for recording myocardial ECG in animals during intense vibration
Body vibration effects in cats on myocardial ECG recordings, discussing electrodes implantation and tracings
Sass, D. J.↗
Biochemical and metabolic effects of a six- month exposure of small animals to a helium- oxygen atmosphere
Long term helium-oxygen atmosphere effects on rats and mice, investigating biochemical and metabolic changes
Cohen, J. D.↗
Apollo 11 - Exposure of lower animals to lunar material
Biological tests of fish and invertebrates exposed to Apollo 11 lunar surface material, noting absence of pathological effects
Allison, T. C.↗
Animal restraint - Application in space /weightless/ environment
Chicken lymphopenia and body mass loss resulting in death from chronic restraint, developing physiologically unstressful restraint for space environmental testing
Beljan, J. R.↗
Gravity selection by animals in fields of centrifugal acceleration superimposed on weightlessness during sounding rocket flights
Artificial gravity selection by rats in centrifugal acceleration fields superimposed on weightlessness during sounding rocket flights
Belleville, R. E.↗
Effects of inhalation of Freon 113 on laboratory animals
Four monkeys, 8 dogs, 40 mice, and 50 rats were exposed continuously to 2000 ppm Freon 113 in a Thomas Dome for 14 days. This exposure produced no mortalities nor adverse symptomology. There were no significant alterations in hematological values, clinical chemistries, electroencephalographic findings, body weights, or organ to body weight ratios. The effect of 2% Freon 113 on nicotinic transmission through the stellate ganglion of the spinal dog was also evaluated. The exposure induced a reduction in nicotinic transmission comparable to 2% halothane.
Carter, V. L.↗
Factors modifying the response of large animals to low-intensity radiation exposure
In assessing the biological response to space radiation, two of the most important modifying factors are dose protraction and dose distribution to the body. Studies are reported in which sheep and swine were used to compare the hematology and lethality response resulting from radiation exposure encountered in a variety of forms, including acute (high dose-rate), chronic (low dose-rate), combinations of acute and chronic, and whether received as a continuous or as fractionated exposure. While sheep and swine are basically similar in response to acute radiation, their sensitivity to chronic irradiation is markedly different. Sheep remain relatively sensitive as the radiation exposure is protracted while swine are more resistant and capable of surviving extremely large doses of chronic irradiation. This response to chronic irradiation correlated well with changes in radiosensitivity and recovery following an acute, sublethal exposure.
Page, N. P.↗
Neurophysiological findings relevant to echolocation in marine animals
A review of echolocation mechanisms in marine mammals, chiefly porpoises, is given. Data cover peripheral auditory and central neurophysiological specializations favorable to the analysis of echolocating clicks and their echoes. Conclusions show (1) signals are received from 50 up to at least 135 kHz, (2) sound is received through the mandible skin, and (3) the midbrain sites are insensitive to low frequencies (below 6 kHz).
Bullock, T. H.↗