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  • American Association for the Advancement of Science (AAAS)  (341)
  • 1980-1984  (341)
  • 1980  (341)
  • 1
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    Preliminary results on the plasma environment of saturn from the pioneer 11 plasma analyzer experiment (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-01-25
    Description: The Ames Research Center Pioneer 11 plasma analyzer experiment provided measurements of the solar wind interaction with Saturn and the character of the plasma environment within Saturn's magnetosphere. It is shown that Saturn has a detached bow shock wave and magnetopause quite similar to those at Earth and Jupiter. The scale size of the interaction region for Saturn is roughly one-third that at Jupiter, but Saturn's magnetosphere is equally responsive to changes in the solar wind dynamic pressure. Saturn's outer magnetosphere is inflated, as evidenced by the observation of large fluxes of corotating plasma. It is postulated that Saturn's magnetosphere may undergo a large expansion when the solar wind pressure is greatly diminished by the presence of Jupiter's extended magnetospheric tail when the two planets are approximately aligned along the same solar radial vector.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wolfe, J H -- Mihalov, J D -- Collard, H R -- McKibbin, D D -- Frank, L A -- Intriligator, D S -- New York, N.Y. -- Science. 1980 Jan 25;207(4429):403-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17833548" target="_blank"〉PubMed〈/a〉
    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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  • 2
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    Dimethyl and monomethyl sulfate: presence in coal fly ash and airborne particulate matter (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-01-11
    Description: Dimethyl sulfate and its hydrolysis product monomethyl sulfate have been found at concentrations as high as 830 parts per million in fly ash and in airborne particulate matter from coal combustion processes. This discovery poses a new environmental problem because of the mutagenic and carcinogenic properties of these compounds.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lee, M L -- Later, D W -- Rollins, D K -- Eatough, D J -- Hansen, L D -- New York, N.Y. -- Science. 1980 Jan 11;207(4427):186-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7350652" target="_blank"〉PubMed〈/a〉
    Keywords: Air Pollutants/*analysis ; Carcinogens/analysis ; *Coal ; Power Plants ; Sulfuric Acids/*analysis
    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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    Observations of a probable change in the solar radius between 1715 and 1979 (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-12-12
    Description: Solar eclipses were observed from locations near both edges of the paths of totality in England in 1715, in Australia in 1976, and in North America in 1979. Analysis of these observations shows that the solar radius has contracted by 0.34 +/- 0.2 arc second in 264 years.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dunham, D W -- Sofia, S -- Fiala, A D -- Herald, D -- Muller, P M -- New York, N.Y. -- Science. 1980 Dec 12;210(4475):1243-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17810770" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    Saline culture of crops: a genetic approach (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-10-24
    Description: Increasing salinity of soil and water threatens agriculture in arid and semiarid regions. By itself, the traditional engineering approach to the problem is no longer adequate. Genetic science offers the possibility of developing salt-tolerant crops, which, in conjunction with environmental manipulation, could improve agricultural production in saline regions and extend agriculture to previously unsuited regions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Epstein, E -- Norlyn, J D -- Rush, D W -- Kingsbury, R W -- Kelley, D B -- Cunningham, G A -- Wrona, A F -- New York, N.Y. -- Science. 1980 Oct 24;210(4468):399-404.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17837407" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
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    An unpublished reply (1980)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1980-04-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bers, L -- Bing, R H -- Cartan, H -- Lax, P D -- Lane, S M -- Montgomery, D -- DE Rham, G -- Stone, M -- Zariski, O -- New York, N.Y. -- Science. 1980 Apr 4;208(4439):6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17731545" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    Nickel carbonyl: decomposition in air and related kinetic studies (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-05-30
    Description: Nickel carbonyl [Ni(CO)(4)] is a toxic gas used in the manufacture of metallic nickel which has been shown to be carcinogenic and teratogenic in laboratory studies. Its decomposition in air proceeds at a rate that is strongly dependent on the concentration of carbon monoxide (CO). In the absence of CO, the lifetime in air at 296 degrees K and at atmospheric pressure is 60 +/- 5 seconds. A mechanism consisting of equilibrium unimolecular decomposition to Ni(CO)(3) and CO, followed by reaction of the Ni(CO)(3) with molecular oxygen, is consistent with the observations.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stedman, D H -- Hikade, D A -- Pearson, R Jr -- Yalvac, E D -- New York, N.Y. -- Science. 1980 May 30;208(4447):1029-31.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17779026" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
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    Synthesis of human plasminogen by the liver (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-05-30
    Description: Genetic types of plasminogen were determined from a donor and a recipient before and after hepatic homotransplantation. Examination of the plasminogen types demonstrated that the liver is the principal site of synthesis of human plasminogen.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2981173/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2981173/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Raum, D -- Marcus, D -- Alper, C A -- Levey, R -- Taylor, P D -- Starzl, T E -- R01 AM007772/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1980 May 30;208(4447):1036-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6990488" target="_blank"〉PubMed〈/a〉
    Keywords: Female ; Humans ; Liver/*metabolism ; Liver Transplantation ; Male ; Plasminogen/*biosynthesis/genetics ; Polymorphism, Genetic ; Transplantation, Homologous
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
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    Progesterone administration in vivo stimulates release of luteinizing hormone-releasing hormone in vitro (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-05-30
    Description: The release of luteinizing hormone-releasing hormone (LHRH) from tissue from the mediobasal hypothalamic-anterior hypothalamic-preoptic area of prepuberal female rats was measured in a perfusion system. Measurements were also made of the concentrations of LHRH in these tissue fragments and of luteinizing hormone in serum obtained when the rats were killed. Four groups of immature rats were studied: intact, ovariectomized, ovariectomized and implanted with estradiol-containing capsules, and ovariectomized rats primed with estradiol and injected with progesterone. The release of LHRH from the tissue of ovariectomized animals was significantly less than that of intact females and was not modified when the ovariectomized rats received estradiol. However, there was a four- to fivefold increase in LHRH release from tissue of ovariectomized rats primed with estradiol when they were killed 6 hours after they received an injection of progesterone. The concentrations of LHRH in tissue and of luteinizing hormone in serum varied among groups and with the time of day that the animals were killed. The interactions among luteinizing hormone, gonadal steroids, and the photoperiod seem to set the appropriate conditions for neural processes triggering a complete and normal release of luteinizing hormone.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ramirez, V D -- Dluzen, D -- Lin, D -- New York, N.Y. -- Science. 1980 May 30;208(4447):1037-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6990489" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Castration ; Circadian Rhythm ; Estradiol/pharmacology ; Female ; Gonadotropin-Releasing Hormone/*metabolism ; Hypothalamus/*metabolism ; Hypothalamus, Anterior/metabolism ; Light ; Luteinizing Hormone/blood ; Preoptic Area/metabolism ; Progesterone/*pharmacology ; Rats
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 9
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    Bioactive conformation of luteinizing hormone-releasing hormone: evidence from a conformationally constrained analog (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-11-07
    Description: An analog of luteinizing hormone-releasing hormone containing a gamma-lactam as a conformational constraint has been prepared with the use of a novel cyclization of a methionine sulfonium salt. The analog is more active as a luteinizing hormone-releasing hormone agonist that the parent hormone, and provides evidence for a bioactive conformation containing a beta-turn.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Freidinger, R M -- Veber, D F -- Perlow, D S -- Brooks, J R -- Saperstein, R -- New York, N.Y. -- Science. 1980 Nov 7;210(4470):656-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7001627" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Biological Assay ; Cells, Cultured ; Female ; *Gonadotropin-Releasing Hormone/analogs & derivatives ; Hydrogen Bonding ; Lactams ; Protein Conformation ; Rats ; Structure-Activity Relationship
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 10
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    Neurochemical and behavioral evidence for a selective presynaptic dopamine receptor agonist (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-12-05
    Description: A new dopamine analog, 6,7-dihydroxy-2-dimethylaminotetralin (TL-99), was compared to apomorphine in three tests of dopaminergic function in the central nervous system. The tests, performed on rats, included production of changes in locomotor activity (involving both presynaptic and postsynaptic receptors), inhibition of dopa accumulation (quantifying presynaptic receptor activity), and the rotation model (quantifying postsynaptic receptor activation). Apomorphine was efficacious at both presynaptic and postsynaptic receptors, whereas TL-99 was much more efficacious at the presynaptic receptor. This result indicates not only that differences exist between presynaptic and postsynaptic dopamine receptors, but also that these differences may be exploited in the design of selective dopamine agonists.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Goodale, D P -- Rusterholz, D B -- Long, J P -- Flynn, J R -- Walsh, B -- Cannon, J G -- Lee, T -- GM 12675/GM/NIGMS NIH HHS/ -- GM-22365/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1980 Dec 5;210(4474):1141-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7444443" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Apomorphine/pharmacology ; Behavior, Animal/drug effects ; Brain/*drug effects ; Levodopa/metabolism ; Motor Activity/drug effects ; Naphthols ; Rats ; Receptors, Dopamine/*drug effects ; Synaptic Membranes/*drug effects ; *Tetrahydronaphthalenes
    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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