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  • COMMUNICATIONS AND RADAR  (3)
  • Animals  (2)
  • 2020-2022
  • 1980-1984  (5)
  • 1920-1924
  • 1
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    An about 50,000-dalton protein in adrenal medulla: a common precursor of [Met]- and [Leu]enkephalin (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-06-27
    Description: A protein that may be an enkephalin precursor has been identified in extracts of bovine adrenal medulla. This protein (about 50,000 daltons) appears to contain seven copies of [Met]enkephalin and one copy of [Leu]enkephalin. Digestion with trypsin and carboxypeptidase B yields [Met]enkephalin and [Leu]enkephalin in a ratio of almost 7 to 1. The enkephalins were identified by chromatography and by their binding to opiate receptors. Some characteristics of several other adrenal peptides that may serve as intermediates in the biosynthesis of the enkephalins are presented.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewis, R V -- Stern, A S -- Kimura, S -- Rossier, J -- Stein, S -- Udenfriend, S -- New York, N.Y. -- Science. 1980 Jun 27;208(4451):1459-61.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7384787" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenal Medulla/*analysis ; Animals ; Cattle ; Chromaffin Granules/*analysis ; Chromaffin System/*analysis ; Endorphins/*biosynthesis ; Enkephalin, Leucine ; Enkephalin, Methionine ; Enkephalins/*biosynthesis ; Molecular Weight ; Oligopeptides/analysis ; Peptide Fragments/analysis ; Protein Precursors/*analysis ; Proteins/*analysis ; Trypsin
    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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    Choline acetyltransferase-containing neurons in rodent brain demonstrated by immunohistochemistry (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-05-30
    Description: Choline acetyltransferase was demonstrated in neuronal structures of the rodent central nervous system by immunohistochemistry through the application of Fab fragments obtained from monospecific antiserums to human choline acetyltransferase. The specificity of the antiserum for the enzyme was confirmed by the staining of both the ventral horn motor neurons in the rat spinal cord and the neuromuscular junction of the guinea pig diaphragm. Enzyme-containing cell bodies were observed in frontal sections of rat and guinea pig brain in the neostriatum, accumbens, nucleus of the diagonal band, medial septum, and olfactory tubercle. Positively staining fibers and probable nerve terminals were also found in the olfactory tubercle field and other areas of the basal forebrain. The results provide information on the distribution of the cholinergic systems in the rostral forebrain of the rodent.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kimura, H -- McGeer, P L -- Peng, F -- McGeer, E G -- New York, N.Y. -- Science. 1980 May 30;208(4447):1057-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6990490" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/cytology/*enzymology ; Brain Mapping ; Choline O-Acetyltransferase/*metabolism ; Cholinergic Fibers/cytology ; Corpus Striatum/enzymology ; Guinea Pigs ; Hippocampus/enzymology ; Immunoenzyme Techniques ; Nucleus Accumbens/enzymology ; Olfactory Bulb/enzymology ; Rats ; Spinal Cord/enzymology
    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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  • 3
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    VLF wave-particle interaction experiments by EXOS-B/Siple station transmissions (1984)
    In:  Other Sources
    Details
    Publication Date: 2011-08-19
    Description: The relationship between ground station signals and electron pitch angle distribution at L = 4 is reviewed, and signal intensity is discussed. There are two types of relationships between signals and electron distribution: (1) intensification of the signal by a distribution with a high pitch angle anisotropy of pancake type; and (2) triggering of emissions associated with transmissions by a high flux of electrons with low pitch angle anisotropy. The electric field intensity of ground signals is relatively low, which is consistent with those observed by IMP-6 and by a rocket.
    Keywords: COMMUNICATIONS AND RADAR
    Type: ESA Achievements of the Intern. Magnetospheric Study (IMS); p 529-532
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    A transceiver module of the Mu radar (1983)
    In:  CASI
    Details
    Publication Date: 2016-06-07
    Description: The transceiver (TR) module of a middle and upper atmospheric radar is described. The TR module used in the radar is mainly composed of two units: a mixer (MIX unit) and a power amplifier (PA unit). The former generates the RF wave for transmission and converts the received echo to the IF signal. A 41.5-MHz local signal fed to mixers passes through a digitally controlled 8-bit phase shifter which can change its value up to 1,000 times in a second, so that the MU radar has the ability to steer its antenna direction quickly and flexibly. The MIX unit also contains a buffer amplifier and a gate for the transmitting signal and preamplifier for the received one whose noise figure is less than 5 dB. The PA unit amplifies the RF signal supplied from the MIX unit up to 63.7 dBm (2350 W), and feeds it to the crossed Yagi antenna.
    Keywords: COMMUNICATIONS AND RADAR
    Type: Intern. Council Sci. Unions Middle Atmosphere Program, Vol. 9; p 421-423
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 5
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    The MU radar now partly in operation (1984)
    In:  CASI
    Details
    Publication Date: 2016-06-07
    Description: The MU radar (middle- and upper-atmosphere radar) of RASC (Radio Atmospheric Science Center, Kyoto University) is now partly in operation, although the facility will be completed in 1985. The active array system of the radar makes it possible to steer the radar beam as fast as in each interpulse period. Various sophisticated experiments are expected to be performed by the system. A preliminary observation was successful to elucidate atmospheric motions during Typhoon No. 5 which approached the radar site in August, 1983.
    Keywords: COMMUNICATIONS AND RADAR
    Type: International Council of Scientific Unions Middle Atmosphere Program. Handbook for MAP. Vol. 14; p 341-349
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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