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  • American Association for the Advancement of Science (AAAS)  (1,810)
  • American Association of Petroleum Geologists (AAPG)
  • 1980-1984  (1,810)
  • 1940-1944
Collection
Keywords
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Years
Year
  • 11
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    Carbon monoxide measurements in the troposphere (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-12-03
    Description: During the second flight of the space shuttle, the measurement of air pollution from satellites (MAPS) experiment in the OSTA-1 payload acquired approximately 35 hours of radiometric measurements of the carbon monoxide mixing ratio in the middle troposphere, upper troposphere, and lower stratosphere. A gas filter radiometer operating in the 4.67-micrometer band was used to acquire the data over the region from 38 degrees N to 38 degrees S during both daytime and nighttime. The performance of the measurement system was excellent. The data reduced to date indicate the presence of significant gradients in the middle tropospheric carbon monoxide mixing ratio with both latitude and longitude over the North Atlantic, the Mediterranean Sea, and the Middle East. On the basis of comparisons with directly measured values, the accuracy of the measurements is approximately 15 percent. Comparisons of data taken on successive orbits over the same geographic region indicate that the repeatability of the measurements is approximately 5 percent.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Reichle, H G Jr -- Beck, S M -- Haynes, R E -- Hesketh, W D -- Holland, J A -- Hypes, W D -- Orr, H D 3rd -- Sherrill, R T -- Wallio, H A -- Casas, J C -- Saylor, M S -- Gormsen, B B -- New York, N.Y. -- Science. 1982 Dec 3;218(4576):1024-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17790591" 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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  • 12
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    The fate of amoco cadiz oil (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-07-08
    Description: The Amoco Cadiz oil spill (223,000 metric tons) of March 1978 is the largest and best studied tanker spill in history. Of the total oil lost, 30,000 tons (13.5 percent) rapidly became incorporated into the water column, 18,000 tons (8 percent) were deposited in subtidal sediments, 62,000 tons (28 percent) washed into the intertidal zone, and 67,000 tons (30 percent) evaporated. While still at sea, approximately 10,000 tons of oil were degraded microbiologically. After 3 years, the most obvious effects of the spill have passed, although hydrocarbon concentrations remain elevated in those estuaries and marshes that were initially most heavily oiled.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gundlach, E R -- Boehm, P D -- Marchand, M -- Atlas, R M -- Ward, D M -- Wolfe, D A -- New York, N.Y. -- Science. 1983 Jul 8;221(4606):122-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17769199" target="_blank"〉PubMed〈/a〉
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 13
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    The thymus-adrenal connection: thymosin has corticotropin-releasing activity in primates (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-12-23
    Description: Endotoxin-free thymosin fraction 5 elevated corticotropin, beta-endorphin, and cortisol in a dose- and time-dependent fashion when administered intravenously to prepubertal cynomolgus monkeys. Two synthetic component peptides of thymosin fraction 5 had no acute effects on pituitary function, suggesting that some other peptides in thymosin fraction 5 were responsible for its corticotropin-releasing activity. In agreement with these observations, total thymectomy of juvenile macaques was associated with decreases in plasma cortisol, corticotropin, and beta-endorphin. These findings indicate that the prepubertal primate thymus contains corticotropin-releasing activity that may contribute to a physiological immunoregulatory circuit between the developing immunological and pituitary-adrenal systems.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Healy, D L -- Hodgen, G D -- Schulte, H M -- Chrousos, G P -- Loriaux, D L -- Hall, N R -- Goldstein, A L -- CA 24974/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1983 Dec 23;222(4630):1353-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6318312" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenocorticotropic Hormone/*blood ; Animals ; Dose-Response Relationship, Drug ; Endorphins/blood ; Female ; Hydrocortisone/blood ; Kinetics ; Macaca fascicularis ; Thymectomy ; Thymosin/analogs & derivatives/*pharmacology ; Thymus Gland/*physiology ; beta-Endorphin
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  • 14
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    Determination of thermal histories of archeological cereal grains with electron spin resonance spectroscopy (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-12-16
    Description: The thermal histories of archeological cereal grains were examined by electron spin resonance spectroscopy. Studies with modern samples of heated cereal grain showed that the parameters of the electron spin resonance signal characterize the maximum temperature to which the sample had previously been heated. This technique has applicability in archeology and other disciplines.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hillman, G C -- Robins, G V -- Oduwole, D -- Sales, K D -- McNeil, D A -- New York, N.Y. -- Science. 1983 Dec 16;222(4629):1235-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17806726" target="_blank"〉PubMed〈/a〉
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 15
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    Monoclonal antibodies reveal the structural basis of antibody diversity (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-11-18
    Description: Hybridoma technology has made it possible to introduce into continuous culture normal antibody-forming cells and to obtain large amounts of the immunoglobulin produced by each of these cells. Examination of the structure of a number of monoclonal antibodies that react with a single antigen has provided new information on the structural basis of the specificity and affinity of antibodies. Comparisons of families of monoclonal antibodies derived from a single germ line gene revealed the importance of somatic mutation in generating antibody diversity. Monoclonal antibodies that react with variable regions of other monoclonals allow the further dissection and modulation of the immune response. Finally, the continued somatic instability of immunoglobulin genes in cultured antibody-forming cells makes it possible to determine the rate of somatic mutation and to generate mutant monoclonal antibodies that may be more effective serological reagents.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Teillaud, J L -- Desaymard, C -- Giusti, A M -- Haseltine, B -- Pollock, R R -- Yelton, D E -- Zack, D J -- Scharff, M D -- 5T32GM7288/GM/NIGMS NIH HHS/ -- AI05231/AI/NIAID NIH HHS/ -- AI10702/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1983 Nov 18;222(4625):721-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6356353" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antibodies, Monoclonal/genetics/*immunology ; *Antibody Diversity ; Antibody Specificity ; Genes ; Hybridomas/immunology ; Immunoglobulin Idiotypes/immunology ; Immunoglobulin Variable Region/genetics ; Mice ; Mutation ; Protein Conformation ; Structure-Activity Relationship
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 16
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    Anti-T-cell reagents for human bone marrow transplantation: ricin linked to three monoclonal antibodies (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-11-04
    Description: Three new reagents that react against human T cells were synthesized by covalently linking the toxin ricin to monoclonal antibodies recognizing differentiation antigens on the surface of T lymphocytes. Each of these immunotoxins selectively inhibited T-cell proliferation when the cells were incubated in the presence of lactose. Multipotent human stem cells were inhibited only at much higher concentrations. Mixtures of all three immunotoxins were more effective than any one alone. These reagents have the potential for preventing graft-versus-host disease in man.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vallera, D A -- Ash, R C -- Zanjani, E D -- Kersey, J H -- LeBien, T W -- Beverley, P C -- Neville, D M Jr -- Youle, R J -- CA-25097/CA/NCI NIH HHS/ -- CA-31618/CA/NCI NIH HHS/ -- CA-31685/CA/NCI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1983 Nov 4;222(4623):512-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6353579" target="_blank"〉PubMed〈/a〉
    Keywords: *Antibodies, Monoclonal ; Antigen-Antibody Complex ; Bone Marrow/immunology ; *Bone Marrow Transplantation ; Hematopoietic Stem Cells/immunology ; Humans ; *Immunosuppressive Agents ; Lymphocyte Activation ; Ricin/*immunology ; T-Lymphocytes/*immunology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 17
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    Autoimmunity and increased c-myb transcription (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1984-11-30
    Description: A single recessive gene, lpr, induces an autoimmune-lymphoproliferative syndrome in several strains of mice. The lymphoid organs of lpr/lpr mice contained cells with increased amounts of myb RNA, which codes for a protein found in the nucleus. A similar human lymphoproliferative disorder also had an increase in c-myb expression. Mouse T cells induced by mitogens to proliferate did not express large amounts of myb RNA, indicating that marked myb expression is not a general feature of lymphocyte activation and proliferation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mountz, J D -- Steinberg, A D -- Klinman, D M -- Smith, H R -- Mushinski, J F -- New York, N.Y. -- Science. 1984 Nov 30;226(4678):1087-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6494925" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Autoantibodies/*genetics ; Autoimmune Diseases/*genetics ; Female ; *Genes, Recessive ; Lymphocytes/immunology ; Lymphoproliferative Disorders/*genetics ; Mice ; Mice, Inbred Strains ; Nucleic Acid Hybridization ; *Oncogenes ; Species Specificity ; Spleen/immunology ; *Transcription, Genetic
    Print ISSN: 0036-8075
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  • 18
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    Nicarbazin complex yields dinitrocarbanilide as ultrafine crystals with improved anticoccidial activity (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-11-11
    Description: Nicarbazin, a drug used to control the protozoal disease coccidiosis in poultry, is a complex of the highly insoluble drug 4,4'-dinitrocarbanilide with 2-hydroxy-4,6-dimethylpyrimidine. The structures of this and other 4,4'-dinitrocarbanilide complexes have not been determined, but an analogous 2:1 complex of 4,4'-dinitrodiphenylamine with 1,4-diacetylpiperazine has been prepared in which the only possible bonds are hydrogen bonds between the amide carbonyls and amino hydrogens. Scanning electron microscopy revealed that micron-size crystals of nicarbazin disintegrate in water to form much smaller dinitrocarbanilide crystals. Similar complex dissolution in the gut of poultry may account for the greater effectiveness of dinitrocarbanilide when administered as complexed rather than uncomplexed drug. Particle size problems associated with other highly insoluble drugs and pesticides may be resolved by the use of nicarbazin-like complexes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rogers, E F -- Brown, R D -- Brown, J E -- Kazazis, D M -- Leanza, W J -- Nichols, J R -- Ostlind, D A -- Rodino, T M -- New York, N.Y. -- Science. 1983 Nov 11;222(4624):630-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6635662" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Carbanilides/*administration & dosage ; Chickens ; Coccidiostats ; Crystallization ; Intestinal Absorption ; Nicarbazin/*administration & dosage ; Poultry Diseases/*prevention & control ; Solubility ; Structure-Activity Relationship
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  • 19
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    Elemental anomalies at the cretaceous-tertiary boundary, woodside creek, new zealand (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1984-11-02
    Description: Iridium and 26 other elements were determined in shale from the Cretaceous-Tertiary boundary at the locus classicus (for iridium anomalies) at Woodside Creek, New Zealand. Iridium, gold, copper, cobalt, chromium, nickel, arsenic, molybdenum, and iron were enriched in the basal 2 millimeters of the 8-millimeter shale parting as compared with the rest of the stratigraphic column. No other shale partings in the column had anomalous concentrations of any element when the data were expressed on a carbonate-free basis. The boundary material showed striking compositional similarities with the Stevns Klint Danish boundary shale. Elemental concentrations were in general much higher in the New Zealand material than in nonboundary shales from elsewhere in the world. The high concentration of iridium (153 nanograms per gram) in the basal layer of the boundary, together with the enrichment of other siderophile elements supports the idea of an extraterrestrial source for much of the material. The iridium/gold ratio of 2.1 is also in accordance with such a source. The iridium content of the basal layer is higher than for any other marine boundary shale obtained on land. The integrated iridium value is 187 nanograms per square centimeter of boundary surface.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brooks, R R -- Reeves, R D -- Yang, X H -- Ryan, D E -- Holzbecher, J -- Collen, J D -- Neall, V E -- Lee, J -- New York, N.Y. -- Science. 1984 Nov 2;226(4674):539-42.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17821512" target="_blank"〉PubMed〈/a〉
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  • 20
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    Increased chromosomal mutation rate after hybridization between two subspecies of grasshoppers (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-06-10
    Description: Hybridization between two chromosomally distinct subspecies of the grasshopper Caledia captiva results in a high incidence of novel chromosomal rearrangements among the backcross progeny. Rearrangements are restricted to those chromosomes derived from the F1 hybrid parent. Chromosomal involvement is nonrandom with the same rearrangement occurring repeatedly in different backcrosses. A single individual can also generate an array of different rearrangements among its offspring. Several of the rearrangements have also been found in natural populations. The nonrandom and recurrent nature of these chromosomal mutations at high frequencies provides a plausible explanation for the establishment and fixation of chromosomal rearrangements in natural populations.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shaw, D D -- Wilkinson, P -- Coates, D J -- New York, N.Y. -- Science. 1983 Jun 10;220(4602):1165-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6407107" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Evolution ; Chromosomes/*physiology ; Drosophila melanogaster ; Female ; Genetic Variation ; Grasshoppers/*genetics ; *Hybridization, Genetic ; Male ; *Mutation
    Print ISSN: 0036-8075
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