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  • American Association for the Advancement of Science (AAAS)  (2,335)
  • American Association of Petroleum Geologists (AAPG)
  • 1980-1984  (2,335)
  • 1981  (2,335)
Collection
Keywords
Publisher
Years
  • 1980-1984  (2,335)
Year
  • 101
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    Phytoplankton dynamics (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-08-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Goldman, J C -- New York, N.Y. -- Science. 1981 Aug 14;213(4509):751-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17834578" 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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  • 102
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    Retrograde amnesia: possible role of mesencephalic reticular activation in long-term memory (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-09-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Goldberg, E -- Antin, S P -- Bilder, R M Jr -- Gerstman, L J -- Hughes, J E -- Mattis, S -- New York, N.Y. -- Science. 1981 Sep 18;213(4514):1392-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7268442" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Amnesia/etiology/*physiopathology ; Amnesia, Retrograde/physiopathology ; Humans ; Male ; Memory/*physiology ; Mesencephalon/injuries/*physiopathology ; Skull Fractures/complications
    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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  • 103
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    Immunophagocytic properties of retinal pigment epithelium cells (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-01-02
    Description: Retinal pigment cells were dislodged from normal monkey eyes and incubated in glass-slide chambers. All viable pigment cells adhered strongly to glass. They demonstrated surface receptors for the Fc portion of immunoglobulin G and for the third component of complement by selectively binding and phagocytizing antibody or complement-coated erythrocytes. These phagocytic cells with receptors were identified as retinal pigment cells by characteristic ultrastructural features. Thus, retinal pigment cells, which are generally believed to be derived from neural tissue, are not only scavengers of photoreceptor cell debris, but also have surface receptors and phagocytic functions that may be important in ocular defense.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Elner, V M -- Schaffner, T -- Taylor, K -- Glagov, S -- 15062/PHS HHS/ -- New York, N.Y. -- Science. 1981 Jan 2;211(4477):74-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7444450" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Adhesion ; Immunoglobulin G/metabolism ; Macaca fascicularis ; Macaca mulatta ; *Phagocytosis ; Pigment Epithelium of Eye/cytology/immunology/*physiology ; Receptors, Complement/metabolism ; Receptors, Fc/metabolism
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 104
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    Toxicity, odor aversion, and "olfactory aposematism" (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-07-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Eisner, T -- Grant, R P -- New York, N.Y. -- Science. 1981 Jul 24;213(4506):476.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7244647" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Odors ; Rats ; Smell ; *Toxicology
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 105
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    X-linked ichthyosis: increased blood cholesterol sulfate and electrophoretic mobility of low-density lipoprotein (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-11-06
    Description: Plasma cholesterol sulfate concentration is increased in patients with recessive X-linked ichthyosis, a disease in which steroid sulfatase activity is absent. In these patients, cholesterol sulfate is found primarily in the low-density lipoprotein fraction of plasma, and the electrophoretic mobility of these lipoproteins is greatly increased.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Epstein, E H Jr -- Krauss, R M -- Shackleton, C H -- AM 28069/AM/NIADDK NIH HHS/ -- HL 18574/HL/NHLBI NIH HHS/ -- RR 00719/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1981 Nov 6;214(4521):659-60.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6945674" target="_blank"〉PubMed〈/a〉
    Keywords: Cholesterol Esters/*blood ; Electrophoresis, Agar Gel ; Female ; Genes, Recessive ; Genetic Linkage ; Humans ; Ichthyosis/blood/*genetics ; Lipoproteins, LDL/*blood ; Steryl-Sulfatase ; Sulfatases/deficiency ; Sulfates ; X Chromosome
    Print ISSN: 0036-8075
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  • 106
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    Limitations in identifying neurotransmitters within neurons by fluorescent histochemistry techniques (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-12-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Grace, A A -- Bunney, B S -- New York, N.Y. -- Science. 1981 Dec 4;214(4525):1152.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17755901" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
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  • 107
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    Extrinsic microbial degradation of the alligator eggshell (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-12-04
    Description: The outer, densely calcified layer of the alligator eggshell shows progressive crystal dissolution, with the production of concentrically stepped erosion craters, as incubation progresses. This dissolution is caused by the acidic metabolic by-products of nest bacteria. Extrinsic degradation serves to gradually increase the porosity and decrease the strength of the eggshell.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ferguson, M W -- New York, N.Y. -- Science. 1981 Dec 4;214(4525):1135-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17755897" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
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  • 108
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    Renin and angiotensin: the complete system within the neuroblastoma x glioma cell (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-11-20
    Description: Cells of the homogeneous hybrid line neuroblastoma x glioma (NG108-15) have many neuronal properties. Immunocytochemical tests show that they contain both immunoreactive renin and angiotensin; direct radioimmunoassays show that they are positive for renin, angiotensin I, and angiotensin II; enzymatic assays show that they contain angiotensinogen and converting enzyme as well. The renin appears to be present in an enzymatically inactive form that can be activated by trypsin and then blocked by antiserum to purified mouse submaxillary renin. Renin concentration and activity are increased by enhancing cellular differentiation with dibutyryl cyclic adenosine monophosphate or by serum withdrawal. These findings demonstrate a complete renin-angiotensin system within these neuron-like cells, and suggest that activation of intracellular renin could generate angiotensin II.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fishman, M C -- Zimmerman, E A -- Slater, E E -- HL-21247/HL/NHLBI NIH HHS/ -- HL-24105/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1981 Nov 20;214(4523):921-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6272392" target="_blank"〉PubMed〈/a〉
    Keywords: Angiotensin I/*analysis ; Angiotensin II/*analysis ; Angiotensins/*analysis ; Animals ; Cell Line ; Cricetinae ; Glioma/*metabolism ; Hybrid Cells/*metabolism ; Mice ; Neuroblastoma/*metabolism ; Peptidyl-Dipeptidase A/metabolism ; Radioimmunoassay ; Rats ; Renin/*metabolism
    Print ISSN: 0036-8075
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  • 109
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    Cost of research (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-11-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Green, J W -- New York, N.Y. -- Science. 1981 Nov 13;214(4522):742.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17744373" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
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  • 110
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    Application of space technology to geodynamics (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-07-03
    Description: Measurements of the movement and deformation of tectonic plates are needed for many research areas in geodynamics, but observations with adequate accuracy and frequency of measurement are not feasible if classical geodetic methods are used. Long-baseline microwave interferometry and laser ranging to Earth satellites are among the new techniques that have been developed within the past decade to make the required measurements. Fixed and mobile stations using both these methods have been constructed in several countries and are now being used in an internationally coordinated research program. Baseline length accuracy better than 2 to 3 centimeters (1 standard deviation) is expected within the next 5 years.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Flinn, E A -- New York, N.Y. -- Science. 1981 Jul 3;213(4503):89-96.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17741174" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
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  • 111
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    Pheromonal control of dealation and oogenesis in virgin queen fire ants (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-04-03
    Description: In the fire ant Solenopsis invicta, sexually mature virgin females are prevented from shedding their wings and becoming functional egg layers by the presence of the mated queen. Experimental data suggest that this inhibitory effect results from the action of a relatively nonvolatile primer pheromone (or pheromones) produced by the mated queen and distributed by the workers. Target ants are both virgin queens and workers.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fletcher, D J -- Blum, M S -- New York, N.Y. -- Science. 1981 Apr 3;212(4490):73-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17747633" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
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  • 112
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    Phenytoin-induced teratogenesis: a mouse model (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-01-30
    Description: Malformations associated with the fetal hydantoin syndrome have been reproduced in a mouse model. The occurrence of these defects was correlated with maternal serum concentrations, but not with maternal or fetal genotype or the presence of a seizure disorder.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Finnell, R H -- New York, N.Y. -- Science. 1981 Jan 30;211(4481):483-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7455686" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Disease Models, Animal ; Epilepsy/drug therapy ; Female ; Mice ; Mice, Neurologic Mutants/physiology ; Phenytoin/*adverse effects ; *Teratogens
    Print ISSN: 0036-8075
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  • 113
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    Science and the universities (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-09-04
    Description: The university system in Canada, as well as its method of funding, was built on the expectation of growth. It is now necessary to consider what effect the expected decline in enrollment may have on the ability of the university system to serve national needs. Neither the government nor the universities have had any experience that would fit them for carrying out effectively, humanly, and economically the kind of contraction that may be required, while still maintaining the quality of education. Such an adjustment is going to require the best efforts of the universities and the two senior levels of government working in concert, as well as the support of the public. Parallels are drawn with the situation in the United States.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fortier, C -- New York, N.Y. -- Science. 1981 Sep 4;213(4512):1065-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7268413" target="_blank"〉PubMed〈/a〉
    Keywords: Canada ; *Science ; United States ; Universities/manpower/*trends
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  • 114
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    Respiratory specializations (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-05-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Feder, M E -- New York, N.Y. -- Science. 1981 May 15;212(4496):801-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17752270" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
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  • 115
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    Biology and the congressional fellows program (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-11-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Eisner, T -- Jutro, P -- New York, N.Y. -- Science. 1981 Nov 27;214(4524):979.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17808651" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
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  • 116
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    Evolution and prediction (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-05-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Eldredge, N -- New York, N.Y. -- Science. 1981 May 15;212(4496):737.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17752223" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
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  • 117
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    Selective herbivory in tassel-eared squirrels: role of monoterpenes in ponderosa pines chosen as feeding trees (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-09-11
    Description: Ponderosa pine twigs collected from trees used by tassel-eared squirrels as sources of cortical tissue for food contained smaller amounts of monoterpenes than twigs from similar trees not used by the squirrels as food sources. Of the 18 monoterpenes isolated from the twig samples, alpha-pinene was the best single predictor of food source trees. In experiments with captive tassel-eared squirrels, consumption of a preferred food was inversely correlated with the concentration of alpha-pinene added to the food.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Farentinos, R C -- Capretta, P J -- Kepner, R E -- Littlefield, V M -- New York, N.Y. -- Science. 1981 Sep 11;213(4513):1273-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17744761" target="_blank"〉PubMed〈/a〉
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  • 118
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    Views of wundt (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-01-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Evans, R B -- New York, N.Y. -- Science. 1981 Jan 23;211(4480):378.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17748268" target="_blank"〉PubMed〈/a〉
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  • 119
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    Isolation of biological materials by use of erbium (III)--induced magnetic susceptibilities (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-08-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Evans, C H -- Tew, W P -- New York, N.Y. -- Science. 1981 Aug 7;213(4508):653-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7256262" target="_blank"〉PubMed〈/a〉
    Keywords: Binding Sites ; Cations ; *Erbium ; Kinetics ; *Magnetics
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  • 120
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    Polysaccharides in soil fabrics (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-11-06
    Description: Treatment of ultrathin sections of natural soil fabrics with heavy metal stains, specific for carbohydrates, showed that polysaccharides are widely distributed in soils. In addition to being associated with living cells and dead remains of plants and microbes, carbohydrates also coat clay platelets and occur in crevices of submicron size within mineral aggregates. The determination of the precise location of polysaccharides in soils explains in part why some carbohydrates are resistant to microbial degradation and why small quantities of microbial polysaccharides are able to stabilize clay aggregates.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Foster, R C -- New York, N.Y. -- Science. 1981 Nov 6;214(4521):665-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17839659" target="_blank"〉PubMed〈/a〉
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  • 121
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    Calcitonin: aversive effects in rats? (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-02-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Freed, W J -- Bing, L A -- Wyatt, R J -- New York, N.Y. -- Science. 1981 Feb 13;211(4483):734.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17776657" target="_blank"〉PubMed〈/a〉
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  • 122
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    Color and luminance: independent frequency shifts (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-05-15
    Description: Simultaneous opposite spatial frequency shifts can be obtained in chrominance and luminance channels. The chrominance shift cannot be transferred interocularly. Chrominance and luminance channels seem to perform similar but independent spatial frequency analyses.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Favreau, O E -- Cavanagh, P -- New York, N.Y. -- Science. 1981 May 15;212(4496):831-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7221569" target="_blank"〉PubMed〈/a〉
    Keywords: Color Perception/*physiology ; Form Perception/*physiology ; Functional Laterality ; Humans ; Light ; Pattern Recognition, Visual/*physiology
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  • 123
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    Increased intracranial self-stimulation in rats after long-term administration of desipramine (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-11-06
    Description: The effects of long- and short-term administration of the tricyclic antidepressant desipramine on intracranial self-stimulation in rats were studied with electrodes in the A10 region of the dopamine-containing cell bodies of the ventromedial tegmentum. Long-term desipramine administration resulted in a significant shift to the left in the ascending portion of the rate--current intensity function, indicating that the activity of the mesolimbic dopamine system was enhanced. These findings point to a possible dopaminergic mechanism of action of antidepressants and support speculations concerning the role of dopamine-containing neurons in the pathophysiology of depression.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fibiger, H C -- Phillips, A G -- New York, N.Y. -- Science. 1981 Nov 6;214(4521):683-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7197394" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Depression/physiopathology ; Desipramine/*administration & dosage ; Dopamine/*physiology ; Humans ; Limbic System/*physiology ; Male ; Rats ; Rats, Inbred Strains ; Self Stimulation/*drug effects ; Time Factors
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    Milk of dairy cows frequently contains a leukemogenic virus (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-08-28
    Description: Milk or viable milk cells collected from 24 dairy cattle naturally infected with bovine leukemia virus were inoculated into lambs, which were subsequently examined for the development of infection. With this bioassay, infectious virus was demonstrated in the milk of 17 of the cows. Bovine leukemia virus is leukemogenic in at least two mammalian species, is widespread in commercial dairy herds, and can infect a wide range of hosts in vivo and cells, including human cells, in vitro.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ferrer, J F -- Kenyon, S J -- Gupta, P -- 3PO1-CA-14193/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1981 Aug 28;213(4511):1014-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6267692" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Viral/biosynthesis ; Biological Assay ; Cattle ; *Leukemia Virus, Bovine/immunology ; Leukemia, Experimental/transmission ; Lymphocytes/microbiology ; Milk/cytology/*microbiology ; *Retroviridae/immunology ; Sheep
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    Galileo as a scientist (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-02-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Feyerabend, P K -- New York, N.Y. -- Science. 1981 Feb 27;211(4485):876-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17819014" target="_blank"〉PubMed〈/a〉
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    Female feathering in sebright cocks is due to conversion of testosterone to estradiol in skin (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-07-31
    Description: Sebright cocks develop a female feathering pattern but revert to normal male feathering after castration. Administration of testosterone to castrated cocks causes male comb development and reappearance of female feathering. Dihydrotes-tosterone treatment supports development of a male comb but does not induce female feathering. Since testosterone but not dihydrotestosterone is converted to estradiol in the skin of the Sebright, the female feathering appears to be the result of increased conversion of testosterone to estradiol.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉George, F W -- Noble, J F -- Wilson, J D -- New York, N.Y. -- Science. 1981 Jul 31;213(4507):557-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17794843" target="_blank"〉PubMed〈/a〉
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    Female sex pheromone in the skin and circulation of a garter snake (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-11-06
    Description: Serums and extracts of tissues from the female garter snake (Thamnophis sirtalis parietalis) each act as a pheromone and elicit male courtship behavior when applied to the back of another male. Since pheromonal activity is present in yolk and liver tissue of untreated females and can be induced with estrogen treatment in the serums and livers of males, the pheromone may be associated with the circulating yolk lipoprotein, vitellogenin.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Garstka, W R -- Crews, D -- 1 KOZ MH 00135/MH/NIMH NIH HHS/ -- HD 12709/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1981 Nov 6;214(4521):681-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7292007" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Female ; Lipids/physiology ; Liver/physiology ; Male ; Pheromones/*metabolism ; Sex Attractants/blood/*metabolism ; Sexual Behavior, Animal/physiology ; Skin/metabolism ; Snakes/*physiology ; Vitellogenins/physiology
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    Type III hyperlipoproteinemia associated with apolipoprotein E deficiency (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-12-11
    Description: Subjects with type III hyperlipoproteinemia develop premature atherosclerosis and have hyperlipidemia due to an increase in cholesterol-rich very low density lipoproteins (VLDL) of abnormal electrophoretic mobility. Apolipoprotein E is a major protein constituent of VLDL and appears to be important for the hepatic uptake of triglyceride-rich lipoproteins. A new kindred of patients with type III hyperlipoproteinemia is described in which no plasma apolipoprotein E could be detected, consistent with the concept that type III hyperlipoproteinemia may be due to an absence or striking deficiency of apolipoprotein E.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ghiselli, G -- Schaefer, E J -- Gascon, P -- Breser, H B Jr -- New York, N.Y. -- Science. 1981 Dec 11;214(4526):1239-41.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6795720" target="_blank"〉PubMed〈/a〉
    Keywords: Apolipoproteins/blood/*deficiency ; Apolipoproteins E ; Humans ; Hyperlipoproteinemia Type III/*blood/genetics ; Immunodiffusion ; Lipoproteins, HDL/blood/*deficiency ; Lipoproteins, VLDL/blood/*deficiency ; Pedigree ; Reference Values
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    Newton and mercury poisoning (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-11-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Goldwater, L J -- New York, N.Y. -- Science. 1981 Nov 13;214(4522):742.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17744374" target="_blank"〉PubMed〈/a〉
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    Populations in motion (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-04-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gill, D E -- New York, N.Y. -- Science. 1981 Apr 3;212(4490):40-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17747628" target="_blank"〉PubMed〈/a〉
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    The field of geography (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-01-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Glick, T F -- New York, N.Y. -- Science. 1981 Jan 23;211(4480):377-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17748266" target="_blank"〉PubMed〈/a〉
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    Malignant potential of murine stromal cells after transplantation of human tumors into nude mice (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-04-03
    Description: Human malignant cancer tumors grafted into nude mice produce tumors containing both human cancer cells and the host's stromal cells. After short-term propagation of these tumors in vitro, the murine mesenchymal cells appear transformed and are tumorigenic in nude mice. However, established human cancer cell lines fail to similarly after adjacent murine stromal cells when used to produce tumors in nude mice. These experiments suggest that cancer cells may recruit normal cells to become malignant, qualifying the view of the clonal (unicellular) origin of cancer.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Goldenberg, D M -- Pavia, R A -- 1R01 CA17198/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1981 Apr 3;212(4490):65-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7209521" target="_blank"〉PubMed〈/a〉
    Keywords: Adenocarcinoma/pathology ; Animals ; Cell Line ; Cells, Cultured ; Colonic Neoplasms/pathology ; Fibrosarcoma/*etiology ; Humans ; Karyotyping ; Mice ; Mice, Inbred BALB C ; Mice, Nude ; Middle Aged ; Neoplasm Transplantation ; Neoplasms, Experimental/*etiology ; Transplantation, Heterologous
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    Vagotomy abolishes cues of satiety produced by gastric distension (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-06-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gonzalez, M F -- Deutsch, J A -- New York, N.Y. -- Science. 1981 Jun 12;212(4500):1283-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7233218" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Feeding Behavior ; Kinetics ; Male ; Rats ; *Satiation ; *Satiety Response ; Stomach/*physiology ; *Vagotomy
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    Thermodynamics and society (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-03-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gordon, G E -- New York, N.Y. -- Science. 1981 Mar 20;211(4488):1340-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17779229" target="_blank"〉PubMed〈/a〉
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    Merkel cell receptors: structure and transducer function (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-10-09
    Description: An electron microscopic and electrophysiological investigation was made of Merkel cell-neurite complexes in the sinus hair follicles of the cat. These mechanoreceptors respond with very precise phase locking to heavy-frequency vibratory stimuli as well as to static hair displacements. The mechanoelectric transduction process is faster than that known for any other somatic mechanoreceptor. These data show that the nerve endings themselves and not the Merkel cells are the mechanoelectric transducer elements in these receptors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gottschaldt, K M -- Vahle-Hinz, C -- New York, N.Y. -- Science. 1981 Oct 9;214(4517):183-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7280690" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Animals ; Cats ; Cytoplasmic Granules/ultrastructure ; Evoked Potentials ; Mechanoreceptors/*cytology/physiology ; Microscopy, Electron ; Skin/*innervation/ultrastructure ; Time Factors
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    Protozoan parasite of humans: surface membrane with externally disposed acid phosphatase (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-05-22
    Description: Plasma membranes isolated from the protozoan parasite Leishmania donovani were enriched in acid phosphatase (E.C. 3.1.3.2) activity. Cytochemically, the enzyme was distributed uniformly on the surface of intact cells and was localized on the external face of isolated membranes. Physical characteristics and orientation of the membrane-bound enzyme suggest that the organism is adapted for existence in hydrolytic environments.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gottlieb, M -- Dwyer, D M -- AI-16530/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1981 May 22;212(4497):939-41.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7233189" target="_blank"〉PubMed〈/a〉
    Keywords: Acid Phosphatase/*metabolism ; Animals ; Cell Membrane/*enzymology ; Flagella/enzymology ; Humans ; Intracellular Membranes/enzymology ; Leishmania/*enzymology/ultrastructure ; Microscopy, Electron
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    A gel partition model for organic desorption from a pond sediment (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-11-13
    Description: Adsorption at the water-sediment interface has been correlated with the organic carbon content of natural sediment samples and with water-octanol partitioning equilibria. In deriving a new model for sorption in sediment, it is assumed that adsorption is due to humin-kerogen polymers associated with the clay component in the sediment. The model includes solubility parameter theory applied to solute-gel-liquid interactions and a theory of the liquid-polymer interactions that control gel swelling. Partially swollen gels are expected to exhibit impeded diffusion. These concepts are able to explain observations of limited desorption of certain organic compounds from natural sediments and soil minerals. Experiments were performed in which extractive solvents flowed through a liquid chromatographic column packed with dried estuarine and pond sediment samples and the effluent was analyzed for a test lipophilic compound, di(2-ethylhexyl) phthalate. The model predicts that the maximum desorption rate and the maximum extent of gel swelling should coincide and, conversely, that the desorption rate should be diffusion-limited if the polymer gel is only partially swollen. The conditions for maximum desorption and for diffusion-limited desorption were both observed experimentally.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Freeman, D H -- Cheung, L S -- New York, N.Y. -- Science. 1981 Nov 13;214(4522):790-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17744401" target="_blank"〉PubMed〈/a〉
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    Isoguanosine: isolation from an animal (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-05-01
    Description: Isoguanosine (oxyadenosine or crotonoside), previously known to occur in nature only in the croton bean, was isolated from an animal, the marine nudibranch mollusk Diaulula sandiegensis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fuhrman, F A -- Fuhrman, G J -- Nachman, R J -- Mosher, H S -- HL-25771/HL/NHLBI NIH HHS/ -- NS-14345/NS/NINDS NIH HHS/ -- RR-00711/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1981 May 1;212(4494):557-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7209552" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Guanosine/*isolation & purification ; Magnetic Resonance Spectroscopy ; Mass Spectrometry ; Mollusca/*analysis
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    Radiosensitivity of human cells in vitro (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-04-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Furcinitti, P S -- Todd, P -- New York, N.Y. -- Science. 1981 Apr 3;212(4490):6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7209518" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Survival/*radiation effects ; Cells, Cultured ; Dose-Response Relationship, Radiation ; HeLa Cells/radiation effects ; Humans
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    The bridge of language (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-04-10
    Description: The elements of human culture, including literature and the sciences, grow out of a basis in social concern. As they develop, their inner structures begin to emerge and those practicing them make discoveries within those structures. When tensions arise with the concerns of society a divided loyalty arises. In the past, social concerns which resisted science or censored literature were usually wrong, but there are very intense concerns today, such as environmental pollution, which appear to be bringing us to a common meeting point.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Frye, N -- New York, N.Y. -- Science. 1981 Apr 10;212(4491):127-32.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17783803" target="_blank"〉PubMed〈/a〉
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    Voltage clamp studies in macrophages from mouse spleen cultures (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-10-23
    Description: Voltage clamp studies of macrophages from cultures of mouse spleen macrophages produced N-shaped steady-state current-voltage curves containing a region of negative slope resistance. Some macrophages exhibit two stable states of membrane potential, having current-voltage relationships that cross the voltage axis at three points. Outward currents that turn on at voltages of +15 millivolts or greater were noted in several cells. The addition of barium chloride to the bathing medium abolished the negative slope resistance and reduced the inward currents in response to hyperpolarizing voltage steps. These data provide direct evidence that macrophages exhibit at least tow different voltage-dependent conductances and demonstrate that voltage clamp techniques can be useful in studying the membrane properties of leukocytes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gallin, E K -- New York, N.Y. -- Science. 1981 Oct 23;214(4519):458-60.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7291986" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Barium/pharmacology ; Cell Membrane/physiology ; Cells, Cultured ; Electric Conductivity ; Macrophages/*physiology ; Membrane Potentials ; Mice ; Spleen/cytology
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    Ethics Advisory Board (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-10-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gaither, James C -- New York, N.Y. -- Science. 1981 Oct 16;214(4518):254.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11643664" target="_blank"〉PubMed〈/a〉
    Keywords: *Advisory Committees ; Bioethical Issues ; Bioethics ; *Federal Government ; *Government ; Government Regulation ; Politics ; *Public Policy ; Social Control, Formal
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    Novel single-pass exchange of circulating uridine in rat liver (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-08-14
    Description: Evidence is presented that the liver effects an essentially complete degradation of plasma uridine in a single pass and replaces it largely from hepatic pools of acid-soluble uridine nucleotides. The concentration of uridine in the hepatic vein of the rat was essentially the same as that in the arterial circulation and portal vein. However, the isolated perfused rat liver degraded more than 90 percent of infused [5-3H]uridine in a single passage. Similar results were found in vivo when tracer amounts of [3H]uridine and [14C]uridine were infused into the portal vein of an intact rat. Furthermore, less than 2 percent of the infused uridine entered the acid-soluble nucleotide pools of the liver after 30 minutes of infusion. Intraperitoneal injection of [3H]orotate allowed selective labeling of liver (and kidney) pyrimidines. After 3 hours, the specific activity of uridine in the hepatic vein was more than three times that in the arterial circulation. This unusual exchange, which is not saturated even at uridine concentrations as high as 50 microM, contributes to the rapid turnover of plasma uridine and explains its inefficient utilization in peripheral tissues.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gasser, T -- Moyer, J D -- Handschumacher, R E -- New York, N.Y. -- Science. 1981 Aug 14;213(4509):777-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7256279" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Liver/*metabolism ; Metabolic Clearance Rate ; Rats ; Tissue Distribution ; Uridine/blood/*metabolism
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    Indirect costs (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-09-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Guze, S B -- New York, N.Y. -- Science. 1981 Sep 11;213(4513):1199.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17744737" target="_blank"〉PubMed〈/a〉
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    A project in social history (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-05-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Guest, A M -- New York, N.Y. -- Science. 1981 May 15;212(4496):806-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17752274" target="_blank"〉PubMed〈/a〉
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  • 146
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    Calcium-dependent prolonged effects on melanophores of [4-norleucine, 7-D-phenylalanine]-alpha-melanotropin (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-08-28
    Description: A single injection of the melanotropin analog [4-norleucine, 7-D-phenylalanine]-alpha-melanotropin into frogs (Rana pipiens) caused near maximum darkening of the skins of the frogs for at least 6 weeks. Injections of the natural hormone alpha-melanotropin or of the analog [Nle4]-alpha-melanotropin also caused darkening, but this effect lasted only a few days. Morphological examination of the skins of frogs injected with [Nle4, D-Phe7]-alpha-melanotropin revealed that both dermal and epidermal melanophores were dispersed during the entire 6-week period. In vitro [Nle4, D-Phe7]-alpha-melanotropin also causes prolonged darkening of the skin of the lizard Anolis carolinensis. In the absence of the melanotropin, skins previously darkened with the analog could be lightened by removal of calcium from the incubation medium but could then be redarkened by adding calcium. The cycle could be repeated indefinitely without addition of melanotropin. These results demonstrate the role of calcium in receptor signal transduction and the prolonged biological effects of [Nle4, D-Phe7]-alpha-melanotropin long after its removal from the assay medium.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hadley, M E -- Anderson, B -- Heward, C B -- Sawyer, T K -- Hruby, V J -- AM-17420/AM/NIADDK NIH HHS/ -- CA-20547/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1981 Aug 28;213(4511):1025-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6973820" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Calcium/*pharmacology ; Lizards ; Melanocyte-Stimulating Hormones/*analogs & derivatives/pharmacology ; Melanophores/*drug effects/ultrastructure ; Rana pipiens ; Skin/ultrastructure ; Skin Pigmentation/*drug effects ; Time Factors ; *alpha-MSH/*analogs & derivatives
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    Generation of stabilized microbubbles in seawater (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-07-10
    Description: Bubbles of less than 1 micrometer and as large as 13.5 micrometers in diameter, stabilized by an apparent compression of substances sorbed onto their surfaces, were examined to determine their physical and temporal stability. Their ease of formation is related to the qualities of the water in which they are formed. Their presence in the water column must now be considered when interpreting acoustic data gathered to determine marine bubble populations.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Johnson, B D -- Cooke, R C -- New York, N.Y. -- Science. 1981 Jul 10;213(4504):209-11.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17782785" target="_blank"〉PubMed〈/a〉
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  • 148
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    Erosion of galilean satellite surfaces by jovian magnetosphere particles (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-05-29
    Description: The Galilean satellites of Jupiter-Io (J1), Europa (J2), Ganymede (J3), and Callisto (J4)-are embedded in the intense ion and electron fluxes of the Jovian magnetosphere. The effect of these particles on the icy surfaces of the outer three satellites depends on the fluxes and the efficiency of the sputtering of water ice by such particles. Recent laboratory measurements provided data on the erosion of water ice by energetic particles and showed that it occurs much faster than would be expected from normal sputtering theory. The Voyager spacecraft encounters with Jupiter provided the first measurements of ion fluxes (energies greater, similar 30 kiloelectron volts) in the vicinity of the Galilean satellites. Using the laboratory sputtering data together with particle measurements from the Voyager 1 low-energy charged particle experiment, the effects of erosion on the surfaces of J2 to J4 are estimated. It is shown that the surface of Europa could be eroded by as much as 100 meters over an eon (10(9) years). Column densities of water vapor that could be produced around the three satellites from particle bombardment of their surfaces are also calculated, and the sources and losses of oxygen in the gravitationally bound gas produced by sputtering or sublimation are estimated.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Johnson, R E -- Lanzerotti, L J -- Brown, W L -- Armstrong, T P -- New York, N.Y. -- Science. 1981 May 29;212(4498):1027-30.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17779973" target="_blank"〉PubMed〈/a〉
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    Plasmid-assisted molecular breeding: new technique for enhanced biodegradation of persistent toxic chemicals (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-12-04
    Description: The persistence of synthetic herbicides such as 2,4,5-trichlorophenoxyacetic acid (2,4,5-T) and its release in massive amounts as a herbicide (Agent Orange) have created toxicological problems in many countries. In nature, 2,4,5-T is slowly degraded by cooxidation and is not utilized as a sole source of carbon and energy. The technique of plasmid-assisted molecular breeding has led to the development of bacterial strains capable of totally degrading 2,4,5-T by using it as their sole source of carbon at high concentrations (greater than 1 mg/ml). Spectrophotometry and gas chromatography reveal various intermediates during growth of the culture with 2,4,5-T.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kellogg, S T -- Chatterjee, D K -- Chakrabarty, A M -- New York, N.Y. -- Science. 1981 Dec 4;214(4525):1133-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7302584" target="_blank"〉PubMed〈/a〉
    Keywords: 2,4,5-Trichlorophenoxyacetic Acid/*metabolism ; Bacteria/*genetics/metabolism ; Biotransformation ; Cell Division ; Kinetics ; Nucleic Acid Hybridization ; *Plasmids
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    Rapid massive assembly of tight junction strands (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-07-31
    Description: Incubation at 37 degrees C of excised rat prostate tissue results in massive proliferative assembly of new tight junction strands along the entire lengths of the lateral plasma membranes of the columnar epithelial cells. The new tight junction elements are assembled within 5 minutes and have an average length six times that of those present in the apical tight junction band. Massive assembly occurs in the presence of protein synthesis inhibitors (cycloheximide) or of metabolic uncouplers (dinitrophenol). Thus, proliferative assembly of tight junction strands involves molecular reorganization from a pool of preexisting, probably membrane-associated, components. The fascia occludens and some examples of experimentally induced tight junction proliferation may reflect the massive emergence of tight junction strands when tissue is subjected to diverse stressful conditions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kachar, B -- Pinto da Silva, P -- New York, N.Y. -- Science. 1981 Jul 31;213(4507):541-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7244652" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cycloheximide/pharmacology ; Dinitrophenols/pharmacology ; Intercellular Junctions/drug effects/*physiology/ultrastructure ; Male ; Prostate/physiology/ultrastructure ; Rats
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    Annual Growth Increments in Shells of Spisula solidissima Record Marine Temperature Variability (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-01-09
    Description: Systematic variations in annual growth increments, formed over a 16-year period in shells of the marine bivalve mollusc Spisula solidissima, reveal more growth in some years than others. Favorable years are indicated by larger than expected annual growth increments and successful recruitment of juveniles. Variations in the size of growth increments correlate negatively with sea surface temperatures. The results suggest that the annual growth increments in the shells of certain molluscs record changes in the marine environment and may be useful monitors of pollution and indicators of paleotemperatures.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jones, D S -- New York, N.Y. -- Science. 1981 Jan 9;211(4478):165-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17757267" target="_blank"〉PubMed〈/a〉
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    Achievement test scores in mathematics and science (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-07-24
    Description: Average achievement test scores of the nation's youth in mathematics and science have declined rather steadily since the early 1960's, and this decline is more marked in the higher grades. The average test scores in mathematics and science of high school seniors who have intended to go to college and major in those fields, however, have been quite stable. These findings may have implications for educational policy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jones, L V -- New York, N.Y. -- Science. 1981 Jul 24;213(4506):412-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17760173" target="_blank"〉PubMed〈/a〉
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    Retroactive interference in discrimination learning (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-12-11
    Description: In stage 1 of this experiment pigeons were trained to discriminate between two levels of noise or two colors by pecking on one of two disks. In stage 2 the discriminative stimuli were not presented, but pecking on the disks was rewarded on a random schedule. The second procedure caused the pigeons to forget the discrimination they had learned.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Heinemann, E G -- Sage-Day, J -- Brenner, N -- MH 18246/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1981 Dec 11;214(4526):1254-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7302595" target="_blank"〉PubMed〈/a〉
    Keywords: Acoustic Stimulation ; Animals ; Columbidae ; *Discrimination (Psychology) ; Photic Stimulation ; Time Factors
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    Energetics of honeybee swarm thermoregulation (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-05-01
    Description: Honeybee swarms regulate their core temperature at a high set point (near 36 degrees C) and the mantle at a low set point (near 15 degrees C). The temperature gradient from core to mantle permits considerable energy economy, and it is abolished only shortly before swarm takeoff.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Heinrich, B -- New York, N.Y. -- Science. 1981 May 1;212(4494):565-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17737212" target="_blank"〉PubMed〈/a〉
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  • 155
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    Riftia pachyptila Jones: Observations on the Vestimentiferan Worm from the Galapagos Rift (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-07-17
    Description: The obturacular plume, composed of numerous tentacles, is suggested as a site for the uptake of molecular "food" by Riftia pachyptila (Pogonophora) from the Galapagos Rift; symbiotic bacteria are another possible source of nutrition. Differing organizations of the linings of the five major body cavities of Riftia demonstrate the inadequacy of "coelom" as a descriptive term.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jones, M L -- New York, N.Y. -- Science. 1981 Jul 17;213(4505):333-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17819904" target="_blank"〉PubMed〈/a〉
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  • 156
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    Myelinated central vertebrate axon lacks voltage-sensitive potassium conductance (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-05-29
    Description: Intracellular recordings were obtained from the goldfish Mauthner cell soma and axon before and after intracellular iontophoresis of drugs that block voltage-sensitive potassium conductance. Analysis of the action potentials generated by the axon hillock-initial segment and by the axon suggest that axonal impulses lack this potassium conductance. Thus, impulse repolarization in the Mauthner axon, and perhaps in other vertebrate central axons, may not involve an active potassium current.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaars, C -- Faber, D S -- NS 15335/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1981 May 29;212(4498):1063-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7233201" target="_blank"〉PubMed〈/a〉
    Keywords: 4-Aminopyridine ; Action Potentials/drug effects ; Aminopyridines/pharmacology ; Animals ; Axons/drug effects/*physiology ; Electric Conductivity ; Goldfish ; Myelin Sheath/drug effects/*physiology ; Potassium/*pharmacology ; Tetraethylammonium Compounds/pharmacology
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    Orgnic farming (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-08-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jukes, T H -- New York, N.Y. -- Science. 1981 Aug 14;213(4509):708.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17834561" target="_blank"〉PubMed〈/a〉
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    The biophysical substrate (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-05-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Junge, D -- New York, N.Y. -- Science. 1981 May 15;212(4496):803-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17752272" target="_blank"〉PubMed〈/a〉
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  • 159
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    Small eddies proliferating in the atlantic (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-08-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kerr, R A -- New York, N.Y. -- Science. 1981 Aug 7;213(4508):632-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17847463" target="_blank"〉PubMed〈/a〉
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  • 160
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    Explorer's Ocean Drilling Role Expanded (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-08-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kerr, R A -- New York, N.Y. -- Science. 1981 Aug 21;213(4510):851-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17775263" target="_blank"〉PubMed〈/a〉
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  • 161
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    Rifts propagating in the pacific (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-05-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kerr, R A -- New York, N.Y. -- Science. 1981 May 1;212(4494):529.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17737200" target="_blank"〉PubMed〈/a〉
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  • 162
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    Natural killer cells: their roles in defenses against disease (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-10-02
    Description: Natural killer cells are a recently discovered subpopulation of lymphoid cells that are present in most normal individuals of a range of mammalian and avian species. Natural killer cells have spontaneous cytolytic activity against a variety of tumor cells and some normal cells, and their reactivity can be rapidly augmented by interferon. They have characteristics distinct from other types of lymphoid cells and are closely associated with large granular lymphocytes, which comprise about 5 percent of blood or splenic leukocytes. There is increasing evidence that natural killer cells, with the ability to mediate natural resistance against tumors in vivo, certain virus and other microbial diseases, and bone marrow transplants, may play an important role in immune surveillance.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Herberman, R B -- Ortaldo, J R -- New York, N.Y. -- Science. 1981 Oct 2;214(4516):24-30.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7025208" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, Surface/analysis ; Communicable Diseases/*immunology ; Humans ; *Immunity, Cellular ; *Immunity, Innate ; Killer Cells, Natural/*immunology ; Macrophages/immunology ; Monocytes/immunology ; Neoplasms/*immunology ; Neutrophils/immunology ; T-Lymphocytes/immunology
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    Building knowledge and understanding: enduring assets of society (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-09-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Herschman, A -- New York, N.Y. -- Science. 1981 Sep 18;213(4514):1353-65.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17732565" target="_blank"〉PubMed〈/a〉
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  • 164
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    Residual oil conversion process (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-08-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hettinger, W P Jr -- New York, N.Y. -- Science. 1981 Aug 21;213(4510):816.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17775247" target="_blank"〉PubMed〈/a〉
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  • 165
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    Hinged teeth (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-10-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kiltie, R A -- New York, N.Y. -- Science. 1981 Oct 23;214(4519):390.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17730223" target="_blank"〉PubMed〈/a〉
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  • 166
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    Fertilizability of ova ovulated and recovered from rabbit ovaries perfused in vitro (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-09-04
    Description: Ovaries removed from New Zealand White rabbits were perfused and exposed to gonadotropin in vitro. The ova ovulated in vitro (N = 56) were recovered and cultured and then transferred to the oviducts of six previously mated Dutch Belted hosts. Twelve of the resulting 36 offspring (33.3 percent) were white. In control matings between 12 Dutch Belted females (six randomly selected and the six hosts) and New Zealand White males, only one of 80 (1.2 percent) offspring was white. These data indicate that ova ovulated in vitro can be transferred to the oviduct of a host rabbit where they may be fertilized and after implantation may develop into viable embryos.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kobayashi, Y -- Santulli, R -- Wright, K H -- Wallach, E E -- HD-05948/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1981 Sep 4;213(4512):1127-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7268420" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chorionic Gonadotropin/*pharmacology ; Embryo Transfer ; Female ; *Fertilization in Vitro ; Ovary/drug effects/*physiology ; *Ovulation/drug effects ; Pregnancy ; Rabbits
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  • 167
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    Multiple opiate receptors: alcohol selectively inhibits binding to delta receptors (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-10-23
    Description: The addition of ethanol or other aliphatic alcohols to rat brain membranes strongly inhibits binding of enkephalins at concentrations at which little inhibition of opiate alkaloids is seen. Inhibition is reversible, and potency increases with chain length of the alcohol. The results suggest that delta receptors are considerably more sensitive to alcohols than mu receptors. This is the first demonstration of selective inhibition of one of the postulated classes of opiate receptors by a reagent that is not a ligand for the receptor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hiller, J M -- Angel, L M -- Simon, E J -- DA-00017/DA/NIDA NIH HHS/ -- New York, N.Y. -- Science. 1981 Oct 23;214(4519):468-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6270788" target="_blank"〉PubMed〈/a〉
    Keywords: Alcohols/*pharmacology ; Animals ; Brain/metabolism ; Cells, Cultured ; In Vitro Techniques ; Neuroblastoma/metabolism ; Rats ; Receptors, Opioid/classification/*drug effects/metabolism ; Structure-Activity Relationship
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  • 168
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    Coronary treatment assessed (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-07-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G B -- New York, N.Y. -- Science. 1981 Jul 10;213(4504):195.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7244629" target="_blank"〉PubMed〈/a〉
    Keywords: Evaluation Studies as Topic ; Humans ; Myocardial Revascularization/*methods
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  • 169
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    Genes regulated through chromatin structure (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-11-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G B -- New York, N.Y. -- Science. 1981 Nov 13;214(4522):775-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7292010" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Chromatin/*ultrastructure ; Deoxyribonucleases/metabolism ; *Gene Expression Regulation ; Humans ; Nucleic Acid Conformation
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  • 170
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    Russian proves van der warden conjecture (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-04-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G B -- New York, N.Y. -- Science. 1981 Apr 3;212(4490):31.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17747616" target="_blank"〉PubMed〈/a〉
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  • 171
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    Impact looks real, the catastrophe smaller (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-11-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kerr, R A -- New York, N.Y. -- Science. 1981 Nov 20;214(4523):896-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17782436" target="_blank"〉PubMed〈/a〉
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  • 172
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    Littlewood conjecture resolved (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-04-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G B -- New York, N.Y. -- Science. 1981 Apr 3;212(4490):30-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17747614" target="_blank"〉PubMed〈/a〉
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  • 173
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    Data sought on low cholesterol and cancer (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-03-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G B -- New York, N.Y. -- Science. 1981 Mar 27;211(4489):1410-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7466398" target="_blank"〉PubMed〈/a〉
    Keywords: Cholesterol/*blood ; Humans ; Neoplasms/*etiology ; Research ; Risk
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  • 174
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    Developmental phenomena (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-02-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kende, H -- New York, N.Y. -- Science. 1981 Feb 6;211(4482):574.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17840955" target="_blank"〉PubMed〈/a〉
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  • 175
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    NSA Seeks Research Proposals (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-09-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G B -- New York, N.Y. -- Science. 1981 Sep 11;213(4513):1233.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17744748" target="_blank"〉PubMed〈/a〉
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  • 176
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    FAA Plans to Automate Air Traffic Control (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-08-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G B -- New York, N.Y. -- Science. 1981 Aug 21;213(4510):845-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17775255" target="_blank"〉PubMed〈/a〉
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  • 177
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    Advance in integer programming (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-04-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G B -- New York, N.Y. -- Science. 1981 Apr 3;212(4490):31.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17747615" target="_blank"〉PubMed〈/a〉
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  • 178
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    Hypertension: a relation to sodium-calcium exchange? (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-02-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G B -- New York, N.Y. -- Science. 1981 Feb 27;211(4485):911.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17819028" target="_blank"〉PubMed〈/a〉
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  • 179
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    Affective behavior in patients with localized cortical excisions: role of lesion site and side (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-10-02
    Description: The perception of emotion in verbal and facial expression, and the spontaneous production of conversational speech were studied in patients with unilateral focal excisions of frontal, temporal, or parieto-occipital cortex. Lesions of the left hemisphere impaired the matching of verbal descriptions to appropriate verbal categories of emotional states, whereas with lesions of the right hemisphere, the matching of different faces displaying similar emotional states was impaired. The effects of lesions of both left and right hemisphere occurred regardless of the locus of the lesion. On the other hand, frontal-lobe lesions had differential effects upon unsolicited talking; lesions of the left frontal lobe virtually abolished this behavior, whereas lesions of the right frontal lobe produced excessive talking. These data suggest that the nature of the behavioral stimulus as well as the locus and side of damage must be considered in the study of the neural basis of affective behavior.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolb, B -- Taylor, L -- New York, N.Y. -- Science. 1981 Oct 2;214(4516):89-91.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7280683" target="_blank"〉PubMed〈/a〉
    Keywords: Affect/*drug effects ; Behavior/physiology ; Cerebral Cortex/*physiology ; *Facial Expression ; Functional Laterality ; Humans ; Perception/*physiology ; Verbal Behavior/physiology
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  • 180
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    Insulin as a potent, specific growth factor in a rat hepatoma cell line (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-02-27
    Description: A line or rat hepatoma cells in culture which, in response to serum starvation, become arrested in the early G1 phase of growth, can be stimulated by insulin alone to enter the cell cycle and traverse S phase. A half-maximum response is observed at 30 to 70 picomolar concentrations and the maximum response is essentially identical to that found with optimum serum concentrations.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Koontz, J W -- Iwahashi, M -- AM 24047/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1981 Feb 27;211(4485):947-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7008195" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Cycle/drug effects ; Cell Division/drug effects ; Cell Line ; *Growth Substances ; Insulin/*pharmacology ; Liver Neoplasms, Experimental/*pathology ; Mitosis/drug effects ; Proinsulin/pharmacology ; Rats ; Structure-Activity Relationship
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  • 181
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    Anthropologists turn to museums (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-03-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G B -- New York, N.Y. -- Science. 1981 Mar 13;211(4487):1152.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17755148" target="_blank"〉PubMed〈/a〉
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  • 182
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    GSA Seeks Competitors for AT&T Lines (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-03-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G B -- New York, N.Y. -- Science. 1981 Mar 20;211(4488):1326-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17779217" target="_blank"〉PubMed〈/a〉
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  • 183
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    New academic positions: the outlook in europe and north america (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-04-17
    Description: During the 1960's, Canada, France, Germany, the United Kingdom, and the United States all experienced periods of rapid growth of research expenditures and of university enrollments followed by declines in growth rates. This sequence has generated the current severe shortages of new academic positions, with a resulting long-range threat to the vitality of academic science. Declines in the 18-year-old cohort in the United States, and especially in Canada, aggravate the problem. The United States is the only one of these countries that has not adopted a modest program to deal with the problems by creating fellowships or new positions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kidd, C V -- New York, N.Y. -- Science. 1981 Apr 17;212(4492):293-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17792073" target="_blank"〉PubMed〈/a〉
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  • 184
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    Low-Energy Charged Particles in Saturn's Magnetosphere: Results from Voyager 1 (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-04-10
    Description: The low-energy charged particle instrument on Voyager 1 measured low-energy electrons and ions (energies 〉/= 26 and 〉/= 40 kiloelectron volts, respectively) in Saturn's magnetosphere. The first-order ion anisotropies on the dayside are generally in the corotation direction with the amplitude decreasing with decreasing distance to the planet. The ion pitch-angle distributions generally peak at 90 degrees , whereas the electron distributions tend to have field-aligned bidirectional maxima outside the L shell of Rhea. A large decrease in particle fluxes is seen near the L shell of Titan, while selective particle absorption (least affecting the lowest energy ions) is observed at the L shells of Rhea, Dione, and Tethys. The phase space density of ions with values of the first invariant in the range approximately 300 to 1000 million electron volts per gauss is consistent with a source in the outer magnetosphere. The ion population at higher energies (〉/= 200 kiloelectron volts per nucleon) consists primarily of protons, molecular hydrogen, and helium. Spectra of all ion species exhibit an energy cutoff at energies 〉/= 2 million electron volts. The proton-to-helium ratio at equal energy per nucleon is larger (up to approximately 5 x 10(3)) than seen in other magnetospheres and is consistent with a local (nonsolar wind) proton source. In contrast to the magnetospheres of Jupiter and Earth, there are no lobe regions essentially devoid of particles in Saturn's nighttime magnetosphere. Electron pitch-angle distributions are generally bidirectional andfield-aligned, indicating closed field lines at high latitudes. Ions in this region are generally moving toward Saturn, while in the magnetosheath they exhibit strong antisunward streaming which is inconsistent with purely convective flows. Fluxes of magnetospheric ions downstream from the bow shock are present over distances 〉/= 200 Saturn radii from the planet. Novel features identified in the Saturnian magnetosphere include a mantle of low-energy particles extending inward from the dayside magnetopause to approximately 17 Saturn radii, at least two intensity dropouts occurring approximately 11 hours apart in the nighttime magnetosphere, and a pervasive population of energetic molecular hydrogen.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Krimigis, S M -- Armstrong, T P -- Axford, W I -- Bostrom, C O -- Gloeckler, G -- Keath, E P -- Lanzerotti, L J -- Carbary, J F -- Hamilton, D C -- Roelof, E C -- New York, N.Y. -- Science. 1981 Apr 10;212(4491):225-31.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17783834" target="_blank"〉PubMed〈/a〉
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  • 185
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    Aliens on the campus (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-12-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1981 Dec 11;214(4526):1223.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17789283" target="_blank"〉PubMed〈/a〉
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  • 186
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    Giant polytene chromosomes from the ovaries of a Drosophila mutant (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-04-24
    Description: The chromosomes of the ovarian nurse cells of Drosophila melanogaster fall apart during their cycles of endoreduplication. However, chromosomal synapsis occurs in the pseudonurse cells produced in certain mutant females. The resulting polytene chromosomes undergo developmental changes that are strikingly different from those recorded for the giant chromosomes of the larval salivary gland cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉King, R C -- Riley, S F -- Cassidy, J D -- White, P E -- Paik, Y K -- New York, N.Y. -- Science. 1981 Apr 24;212(4493):441-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6782674" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chromatin/ultrastructure ; Chromosome Inversion ; Chromosomes/*ultrastructure ; DNA Replication ; Drosophila melanogaster/*genetics ; Female ; Heterochromatin/ultrastructure ; Mutation ; Ovarian Neoplasms/genetics/veterinary ; Ovary/ultrastructure
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 187
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    Prediction of huge peruvian quakes quashed (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-02-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kerr, R A -- New York, N.Y. -- Science. 1981 Feb 20;211(4484):808-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17740381" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 188
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    Cloned viral protein vaccine for foot-and-mouth disease: responses in cattle and swine (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-12-04
    Description: A DNA sequence coding for the immunogenic capsid protein VP3 of foot-and-mouth disease virus A12, prepared from the virion RNA, was ligated to a plasmid designed to express a chimeric protein from the Escherichia coli tryptophan promoter-operator system. When Escherichia coli transformed with this plasmid was grown in tryptophan-depleted media, approximately 17 percent of the total cellular protein was found to be an insoluble and stable chimeric protein. The purified chimeric protein competed equally on a molar basis with VP3 for specific antibodies to foot-and-mouth disease virus. When inoculated into six cattle and two swine, this protein elicited high levels of neutralizing antibody and protection against challenge with foot-and-mouth disease virus.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kleid, D G -- Yansura, D -- Small, B -- Dowbenko, D -- Moore, D M -- Grubman, M J -- McKercher, P D -- Morgan, D O -- Robertson, B H -- Bachrach, H L -- New York, N.Y. -- Science. 1981 Dec 4;214(4525):1125-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6272395" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antibody Formation ; Base Sequence ; Cattle ; Cattle Diseases/*prevention & control ; *Cloning, Molecular ; DNA Restriction Enzymes ; DNA, Recombinant/metabolism ; Foot-and-Mouth Disease/*prevention & control ; Immunity, Cellular ; Protein Biosynthesis ; Swine ; Swine Diseases/*prevention & control ; Transcription, Genetic ; *Vaccines ; Viral Proteins/genetics/*therapeutic use
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 189
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    Rational approaches to chemotherapy: antisickling agents (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-08-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Klotz, I M -- Haney, D N -- King, L C -- New York, N.Y. -- Science. 1981 Aug 14;213(4509):724-31.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7256275" target="_blank"〉PubMed〈/a〉
    Keywords: Anemia, Sickle Cell/*drug therapy ; Aspirin/analogs & derivatives/therapeutic use ; Chemical Phenomena ; Chemistry ; *Hemoglobin, Sickle ; Humans ; Protein Binding/drug effects ; Protein Conformation ; Salicylates/*therapeutic use ; Solubility ; Structure-Activity Relationship
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  • 190
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    Trace water content of salt in louisiana salt domes (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-08-28
    Description: The trace water content of salt in six Louisiana salt domes has been determined and has been found to be the lowest of any terrestrial rock type. The average water content of normal domal salt is on the order of 0.003 percent by weight, but anomalous zones within salt stocks can have more than ten times this amount. From the average value, the minimum amount of water in liters, W, available to collect around a radioactive waste repository is given as W = 0.28 r(3), where r is the radius in meters of the sphere in which water may be thermally activated to migrate completely to the repository.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Knauth, L P -- Kumar, M B -- New York, N.Y. -- Science. 1981 Aug 28;213(4511):1005-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17789031" 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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  • 191
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    Steady-state relationship of calcium-45 between bone and blood: differences in growing dogs, chicks, and rats (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-10-09
    Description: In young animals that had received multiple doses of calcium-45, a constant ratio of calcium-45 specific activity in blood to that in bone was found in growing dogs and chicks but not in rats. This steady-state relationship of calcium-45 between bone and blood suggests that during growth in dogs and chicks most of the skeletal calcium is in an active state of turnover. In growing rats, after the first 2 weeks of life, the blood/bone ratio of calcium-45 decreases due to a decrease in bone resorption.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Klein, L -- AG-00258/AG/NIA NIH HHS/ -- AG-00361/AG/NIA NIH HHS/ -- DE-05487/DE/NIDCR NIH HHS/ -- New York, N.Y. -- Science. 1981 Oct 9;214(4517):190-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6792709" target="_blank"〉PubMed〈/a〉
    Keywords: Age Factors ; Animals ; Bone Development ; Bone Resorption/drug effects ; Bone and Bones/*metabolism ; Calcium/blood/*metabolism ; Calcium Radioisotopes ; Chickens ; Dogs ; Etidronic Acid/pharmacology ; Homeostasis ; Rats ; Tetracycline/metabolism
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  • 192
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    Penn Students Lobby for Brailovsky's Son (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-12-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1981 Dec 18;214(4527):1325.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17812247" target="_blank"〉PubMed〈/a〉
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  • 193
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    Z-DNA: from the crystal to the fly (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-12-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G -- New York, N.Y. -- Science. 1981 Dec 4;214(4525):1108-10.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6171037" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies ; Chromosomes/analysis ; Crystallization ; *Dna ; Drosophila/genetics ; Epitopes ; *Nucleic Acid Conformation
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  • 194
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    Reevaluation of cancer data eagerly awaited (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-10-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G B -- New York, N.Y. -- Science. 1981 Oct 16;214(4518):316-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6169152" target="_blank"〉PubMed〈/a〉
    Keywords: *Biomedical Research ; *Cell Transformation, Viral ; Glycolysis ; Neoplasms, Experimental/*physiopathology ; Phosphotyrosine ; Protein Kinases/*metabolism ; Sodium-Potassium-Exchanging ATPase/metabolism ; Tyrosine/analogs & derivatives/metabolism
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  • 195
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    Jury exonerates bendectin in mekdeci case (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-05-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G B -- New York, N.Y. -- Science. 1981 May 8;212(4495):647.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17739391" target="_blank"〉PubMed〈/a〉
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  • 196
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    Cryptographers gather to discuss research (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-11-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G B -- New York, N.Y. -- Science. 1981 Nov 6;214(4521):646-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17839647" target="_blank"〉PubMed〈/a〉
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  • 197
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    The effects of persuasion (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-10-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lepper, M R -- New York, N.Y. -- Science. 1981 Oct 16;214(4518):326.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17829787" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
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  • 198
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    Retinal ganglion cell classes in the Old World monkey: morphology and central projections (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-09-04
    Description: Labeled ganglion cells were studied in whole-mount retinas of Old World monkeys after electrophoretic injections of horseradish peroxidase into physiologically characterized sites. A number of different morphological classes have been identified, each of which has a distinctive pattern of central projection. Since different functional classes of primate retinal ganglion cells also have distinctive patterns of central projection, correspondences between functional and morphological cell types have been inferred. There prove to be parallels between morphological types of cat monkey ganglion cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Leventhal, A G -- Rodieck, R W -- Dreher, B -- EY-02923/EY/NEI NIH HHS/ -- EY-03427/EY/NEI NIH HHS/ -- EY-05212/EY/NEI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1981 Sep 4;213(4512):1139-42.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7268423" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cats ; Geniculate Bodies/cytology ; Horseradish Peroxidase ; Macaca/*anatomy & histology ; Macaca fascicularis/*anatomy & histology ; Neurons/cytology ; Retina/*cytology ; Superior Colliculi/cytology ; Visual Pathways/*cytology
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  • 199
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    Gene-splicing patent may net $1 million a year (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-09-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1981 Sep 4;213(4512):1089.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17741085" target="_blank"〉PubMed〈/a〉
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  • 200
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    U.s. Foreign policy after hiroshima (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-07-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Leffler, M P -- New York, N.Y. -- Science. 1981 Jul 10;213(4504):201-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17782779" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
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