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  • SPACE RADIATION  (33)
  • INSTRUMENTATION AND PHOTOGRAPHY  (5)
  • Drug Tolerance  (1)
  • 1980-1984  (12)
  • 1975-1979  (18)
  • 1970-1974  (9)
  • 1820-1829
  • 1
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    Effect of beta-endorphin on calcium uptake in the brain (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1979-10-05
    Description: The uptake of 45Ca2+ by nerve-ending fractions from brains of mice was inhibited in vitro by 10(-9)M concentrations of beta-endorphin and in mice injected intraventricularly with 7 picomoles of beta-endorphin. That the effect was a specific opiate agonist response of beta-endorphin was demonstrated by use of the opiate antagonist, naloxone, which reversed the action. A role for beta-endorphin in the regulation of calcium flux and neurotransmitter release should be considered.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Guerrero-Munoz, F -- de Lourdes Guerrero, M -- Way, E L -- Li, C H -- New York, N.Y. -- Science. 1979 Oct 5;206(4414):89-91.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/39340" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Transport/drug effects ; Calcium/*metabolism ; Dose-Response Relationship, Drug ; Drug Tolerance ; Endorphins/antagonists & inhibitors/*pharmacology ; Male ; Mice ; Naloxone/pharmacology ; Neurotransmitter Agents/metabolism ; Rats ; Synaptosomes/*drug effects/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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    PAPER CURRENT
  • 2
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    Theory, applications, and results of the long- line correlation spectrometer (1970)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Air polluting sulfur dioxide and nitrogen dioxide remote sensing based on radiation molecular absorption using long line correlation spectrometer
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: ; ACE(
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    NASA TECHNICAL REPORTS
  • 3
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    Airborne laser Doppler velocimeter (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: A CO2 laser Doppler detection system has been developed to measure remotely the true airspeed of an aircraft. The system uses a 50-W sealed-off CO2 laser in a homodyne detection system employing a collinear optical telescope, a HgCdTe detector, and a frequency tracking loop. The system was successfully flight-tested on a NASA Convair 990 research aircraft during December 1971 and June 1972. The results indicate that an airspeed measurement under clear weather conditions is feasible up to an altitude of 3000 m with an error of less than 0.5%.-
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Applied Optics; 13; Dec. 197
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  • 4
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    Gas-tight flask for the concurrent measurement of gas metabolism and growth in methane-oxidizing bacteria (1974)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Applied Microbiology; 28; Sept
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  • 5
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    Automated electrical impedance technique for rapid enumeration of fecal coliforms in effluents from sewage treatment plants (1979)
    In:  Other Sources
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    Publication Date: 2011-08-17
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Aplied and Environmental Microbiology; 37; Mar. 197
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  • 6
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    Rapid, single-step most-probable-number method for enumerating fecal coliforms in effluents from sewage treatment plants (1979)
    In:  Other Sources
    Details
    Publication Date: 2011-08-17
    Description: A single-step most-probable-number method for determining the number of fecal coliform bacteria present in sewage treatment plant effluents is discussed. A single growth medium based on that of Reasoner et al. (1976) and consisting of 5.0 gr. proteose peptone, 3.0 gr. yeast extract, 10.0 gr. lactose, 7.5 gr. NaCl, 0.2 gr. sodium lauryl sulfate, and 0.1 gr. sodium desoxycholate per liter is used. The pH is adjusted to 6.5, and samples are incubated at 44.5 deg C. Bacterial growth is detected either by measuring the increase with time in the electrical impedance ratio between the innoculated sample vial and an uninnoculated reference vial or by visual examination for turbidity. Results obtained by the single-step method for chlorinated and unchlorinated effluent samples are in excellent agreement with those obtained by the standard method. It is suggested that in automated treatment plants impedance ratio data could be automatically matched by computer programs with the appropriate dilution factors and most probable number tables already in the computer memory, with the corresponding result displayed as fecal coliforms per 100 ml of effluent.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Applied and Environmental Microbiology; 37; Mar. 197
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    NASA TECHNICAL REPORTS
  • 7
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    A quantitative test of solar modulation theory - The proton, helium, and electron spectra from 1965 through 1979 (1983)
    In:  Other Sources
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    Publication Date: 2019-06-28
    Description: The predictions of a conventional, spherically symmetric model of solar modulation have been compared with the measured spectra of positively and negatively charged galactic cosmic-ray particles at 1 AU throughout the 1965-1976 solar cycle and through the enhanced modulation of 1979. For the proton/helium, proton/electron, and helium/electron flux ratios, there is remarkably good agreement between theory and experiment, except for small differences in 1965 and 1969. Possible systematic experimental errors are discussed, and it is concluded that: (1) the 11 year modulation process is largely independent of the sign of the particle charge; and (2) the assumption of steady state is a fairly good approximation for long term modulation.
    Keywords: SPACE RADIATION
    Type: Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X); 275; L15-L18
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  • 8
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    The path-length distribution for galactic cosmic-ray propagation - An energy-dependent depletion of short path lengths (1984)
    In:  Other Sources
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    Publication Date: 2019-06-28
    Description: It is shown that at low energies, the depletion of short path lengths in the interstellar cosmic-ray path-length distribution is a function of energy, decreasing in magnitude with increasing energy. The analysis leading to this conclusion is based on the comparison of compiled data for the B/C and sub-Fe/Fe ratios at 0.08-50 GeV per nucleon, with the results of detailed galactic propagation and solar modulation calculations, which include experimental values for the important nuclear cross sections. This energy dependence of the depletion resolves some of the conflicts between previous reports on the question of short path lengths and may be explained by models including a matter distribution around discrete sources or, possibly, by models invoking waves generated by particle-magnetic field interactions in the Galaxy.
    Keywords: SPACE RADIATION
    Type: Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X); 280; L13-L17
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  • 9
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    The age of the galactic cosmic rays derived from the abundance of Be-10 (1977)
    In:  Other Sources
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    Publication Date: 2019-06-27
    Description: Satellite measurements of the abundance of the Be-10 isotope in galactic cosmic rays are used to determine the cosmic-ray lifetime for escape. The data are analyzed by employing a technique based on an extensive calibration of a cosmic-ray telescope with the aid of high-energy Be beams accelerated in a bevatron. It is found that the Be-10/Be abundance ratio at 80 MeV/nucleon is 0.028 + or - 0.104. A comparison of this result with calculations based on a homogeneous steady-state model of galactic cosmic-ray confinement and propagation yields an average interstellar density of 0.18 (+0.18, -0.11) atom/cu cm and a corresponding cosmic-ray lifetime of 17 (+24, -8) million years after solar modulation is taken into account. The low average density traversed by the cosmic rays is shown to suggest that the particles may be spending the major part of their existence in regions of very low matter density. The consequences of these results are discussed for models of cosmic-ray propagation in the Galaxy, including such alternatives as propagation in a galactic halo or in regions of interstellar space where the interstellar gas density is very low.
    Keywords: SPACE RADIATION
    Type: Astrophysical Journal; vol. 217
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  • 10
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    A new test for solar modulation theory - The 1972 May-July low-energy galactic cosmic-ray proton and helium spectra. (1973)
    In:  Other Sources
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    Publication Date: 2019-06-27
    Keywords: SPACE RADIATION
    Type: Astrophysical Journal; 182; June 1
    Format: text
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