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  • GEOPHYSICS  (344)
  • AERODYNAMICS  (154)
  • ENERGY PRODUCTION AND CONVERSION  (91)
  • BIOSCIENCES  (74)
  • 1980-1984
  • 1975-1979  (299)
  • 1970-1974  (364)
  • 1978  (299)
  • 1972  (364)
Collection
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  • 1980-1984
  • 1975-1979  (299)
  • 1970-1974  (364)
Year
  • 1
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    Effects of pentobarbital on plasma glucose and free fatty acids in the rat. (1972)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Hyperglycemia and hypolipemia were observed in rats after the injection of sodium pentobarbital. The observed changes were independent of whether the blood was collected by decapitation or by needle puncture of the aorta. The hyperglycemic response was caused by two factors including the stress of the injection per se and the pharmacological action of the drug. Hyperlipemia was observed at 5 min postinjection. However, pentobarbital decreased plasma free fatty acids by 15 min postinjection. Both the hyperglycemia and hypolipemia responses were dose dependent.
    Keywords: BIOSCIENCES
    Type: Society for Experimental Biology and Medicine; vol. 139
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Effects of exposing rats to 100% oxygen at 450 and 600 mm Hg on in vitro liver and adipose tissue lipid synthesis. (1972)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Male rats (260-285 gm) were exposed to 100% oxygen at 450 or 600 mm Hg for 1 to 4 days. Rats maintained at 450 mm Hg ate 92% the amount of food eaten by ad libitum controls maintained at sea level conditions. At 600 mm Hg, the food intake was 77% of the ad libitum controls. No difference was found in the plasma level of glucose, free fatty acids, and corticosterone between oxygen exposed rats and their respective pair-fed controls. The in vitro conversion of acetate into fatty acids by adipose tissue from rats exposed at 450 mm Hg for 2, 3, or 4 days was significantly increased above pair-fed controls and ad libitum controls. Increasing the oxygen pressure to 600 mm Hg abolished this increase, and in fact, reversed the increased synthesis to a significant decrease for the 4-day exposure.
    Keywords: BIOSCIENCES
    Type: Aerospace Medicine; 43; Mar. 197
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    NASA TECHNICAL REPORTS
  • 3
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    The National Aeronautics and Space Administration-U.S. Public Health Service Health Evaluation and Enhancement Program - Summary of results. (1972)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: An exercise program was initiated in a federal agency to assess the feasibility of such a program, and to identify the factors that influenced joining, adherence to, and effectiveness of the program. The program was utilized by 237 of the 998 eligible federal employees; mean attendance rate was 1.3 days/week. Those who volunteered perceived a need for increased physical activity, believed they had sufficient time to participate and derived subjective as well as objective benefits. Significant improvements were found in heart rate response to the standard exercise test, body weight, skinfold measurements and triglyceride levels.
    Keywords: BIOSCIENCES
    Type: American Journal of Cardiology; 30; Nov. 197
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    NASA TECHNICAL REPORTS
  • 4
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    A common modality of action of simulated space stresses on the oxidative metabolism of ethylmorphine, aniline and p-nitroanisole by male rat liver. (1972)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: High gravity, cold and starvation elicited similar responses in male Simonson rats. These responses included a decreased rate in body weight gain, increased metabolism of aniline and p-nitroanisole, and no consistent pattern of change in the metabolism of ethylmorphine. Cold and starvation increased the amount of hepatic cytochrome P-450, while hypobaric-hyperoxia caused no change in any of the parameters measured. When 1% acetone was given to the rats in their drinking water, the effects on drug metabolism were similar to those produced by food restriction in that the metabolism of aniline and p-nitroanisole was increased, and the metabolism of ethylmorphine unchanged. The type I binding spectrum of acetone suggests that it is either a substrate, inhibitor, or both for hepatitic oxidative enzymes.
    Keywords: BIOSCIENCES
    Type: Toxicology and Applied Pharmacology; 21; 1972
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  • 5
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    The NASA-USPHS Health Evaluation and Enhancement Program (1972)
    In:  CASI
    Details
    Publication Date: 2014-09-05
    Description: An exercise program was initiated to assess the feasibility of an on the job health evaluation and enhancement program, as well as to identify the factors which influenced volunteering, adherence, and effectiveness of the program. The program was utilized by 237 of the 998 eligible Federal employees, with a mean attendance of 1.3 days per week. Those who volunteered perceived a need for increased physical activity, felt they had sufficient time to participate, and derived subjective as well as objective benefits. Significant improvements were found in heart rate response to the standard exercise test, body weight, skinfold measurements, and triglycerides. A consistent relationship was found between subjectively reported effects of the program on work, health habits, and behavior, and improvement in cardiovascular function, based on treadmill performance. Numerous personal and programmatic factors influencing volunteering and participation were identified.
    Keywords: BIOSCIENCES
    Type: NASA, Washington Proc. of the Ann. Conf. of NASA Clinic Directors, Environ. Health Offic. and Med. Program Advisors; p 173-195
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    NASA TECHNICAL REPORTS
  • 6
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    Simultaneous solar-wind plasma and magnetic-field measurements in the expected region of the extended geomagnetic tail. (1972)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Keywords: GEOPHYSICS
    Type: Journal of Geophysical Research; 77; Sept. 1
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    NASA TECHNICAL REPORTS
  • 7
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    Dual membrane hollow fiber fuel cell and method of operating same (1978)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: A gaseous fuel cell is described which includes a pair of electrodes formed by open-ended, ion-exchange hollow fibers, each having a layer of metal catalyst deposited on the inner surface and large surface area current collectors such as braided metal mesh in contact with the metal catalyst layer. A fuel cell results when the electrodes are immersed in electrolytes and electrically connected. As hydrogen and oxygen flow through the bore of the fibers, oxidation and reduction reactions develop an electrical potential. Since the hollow fiber configuration provides large electrode area per unit volume and intimate contact between fuel and oxidizer at the interface, and due to the low internal resistance of the electrolyte, high power densities can be obtained.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 8
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    Design requirements for operational earth resources ground data processing (1972)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: Realistic tradeoff data and evaluation techniques were studied that permit conceptual design of operational earth resources ground processing systems. Methodology for determining user requirements that utilize the limited information available from users is presented along with definitions of sensor capabilities projected into the shuttle/station era. A tentative method is presented for synthesizing candidate ground processing concepts.
    Keywords: GEOPHYSICS
    Type: NASA-CR-129605
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  • 9
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    An analysis of the first two years of GASP data (1978)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: Distributions of mean ozone levels from the first two years of data from the NASA Global Atmospheric Sampling Program (GASP) show spatial and temporal variations in agreement with previous measurements. The standard deviations of these distributions reflect the large natural variability of ozone levels in the altitude range of the GASP measurements. Monthly mean levels of ozone below the tropopause show an annual cycle with a spring maximum which is believed to result from transport from the stratosphere. Correlations of ozone with independent meteorological parameters, and meteorological parameters obtained by the GASP systems show that this transport occurs primarily through cyclogenesis at mid-latitudes. The GASP water vapor data, analyzed with respect to the location of the tropopause, correlates well with the simultaneously obtained ozone and cloud data.
    Keywords: GEOPHYSICS
    Type: In: Joint Conference on Sensing of Environmental Pollutants; Nov 06, 1977 - Nov 11, 1977; New Orleans, LA
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    NASA TECHNICAL REPORTS
  • 10
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    Detached auroral arcs in the trough region (1978)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: In a previous paper, Moshupi et al. (1977) have reported on the occurrence of rare auroral 'patches' equatorward of the normally well-defined boundary of diffuse aurora. Some less spectacular but more common arclike features were observed in the same 'trough' region (between the plasmapause and the auroral oval) during the period 1972-1975. These 'detached' arcs show some similarities to stable auroral red arcs in terms of their location and occurrence, but are completely different spectroscopically in that the stable auroral red arcs produce almost pure atomic oxygen red line emissions, whereas the detached arcs are deficient in red line emission - a feature implying totally different production mechanisms. The characteristics of the detached lines are described, including their unusual local time/longitude dependence.
    Keywords: GEOPHYSICS
    Type: Journal of Geophysical Research; 83; June 1
    Format: text
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