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  • ASTROPHYSICS  (193)
  • INSTRUMENTATION AND PHOTOGRAPHY  (92)
  • Animals  (86)
  • 550 - Earth sciences
  • AIRCRAFT DESIGN, TESTING AND PERFORMANCE
  • Lunar and Planetary Science and Exploration
  • MATERIALS, METALLIC
  • SPACE SCIENCES
  • 2010-2014
  • 1975-1979  (439)
  • 1970-1974
  • 1965-1969
  • 1950-1954
  • 1925-1929
  • 1979  (235)
  • 1976  (204)
  • 1950
Collection
Keywords
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  • 2010-2014
  • 1975-1979  (439)
  • 1970-1974
  • 1965-1969
  • 1950-1954
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Year
  • 1
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    A direct role of dopamine in the rat subthalamic nucleus and an adjacent intrapeduncular area (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1979-12-21
    Description: The subthalamic nucleus, a clinically important component of the extrapyramidal motor system, and a lateral area extending into the peduncle contain catecholamine terminals and dopamine receptors coupled to adenylate cyclase. In addition, dopamine agonists administered in vivo enhance glucose utilization in the region. Thus, neuronal function in this region is directly affected by dopamine and dopaminergic drugs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brown, L L -- Markman, M H -- Wolfson, L I -- Dvorkin, B -- Warner, C -- Katzman, R -- New York, N.Y. -- Science. 1979 Dec 21;206(4425):1416-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/505015" target="_blank"〉PubMed〈/a〉
    Keywords: Adenylyl Cyclases/metabolism ; Animals ; Brain Mapping ; Catecholamines/pharmacology ; Dopamine/pharmacology ; Enzyme Activation/drug effects ; Extrapyramidal Tracts/*metabolism/ultrastructure ; Glucose/metabolism ; Male ; Mesencephalon/*metabolism ; Neurons/metabolism ; Rats ; Receptors, Dopamine/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Stellar model chromospheres. XI - A survey of Ca II lambda 8542 line profiles in late-type stars of differing chromospheric activity (1979)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Keywords: ASTROPHYSICS
    Type: PB80-144215 , Astrophysical Journal Supplement Series; 41; Nov. 197
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Laboratory calibration of AAFE radiometer/scatterometer (RADSCAT) (1976)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: A brief description of the electrical and mechanical instrument configuration, followed by an extensive discussion of laboratory tests and results are contained herein. This information is required to provide parameters for data reduction, and a basis for analysis of the measurement errors in data taken with this instrument.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA-TM-X-73900
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 4
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    Structural dynamics, stability, and control of helicopters (1976)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: The dynamic synthesis of a helicopter is reported. The method of approach is a variation of the component mode synthesis in the sense that it regards the aircraft as an assemblage of interconnected substructures. The equations of motion are derived in general form by means of the Lagrangian formulation in conjunction with an orderly kinematical procedure that takes into account the superposition of motion of various substructures, thus circumventing constraint problems.
    Keywords: AIRCRAFT DESIGN, TESTING AND PERFORMANCE
    Type: NASA-CR-148286 , SAPR-3
    Format: application/pdf
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  • 5
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    Vascular smooth muscle cell kinetics: a new assay for studying patterns of cellular proliferation in vivo (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1979-08-31
    Description: A new quantitative assay for studying the kinetics of vascular smooth muscle cells in vivo is reported. The assay was used to determine the specific activity of DNA from rabbit aortic smooth muscle cells stimulated to grow by removal of the endothelial layer. The specific activity of the DNA was correlated with the rate of tritiated thymidine incorporation as measured by autoradiography and with the rate of DNA synthesis as estimated by direct measurement of cellular proliferation. Smooth muscle cells exhibit a 24-hour latent period in vivo prior to DNA synthesis; the synthesis peaks at 48 hours and then rapidly declines. The decline in DNA synthesis is not related to endothelial regrowth, and may be of homeostatic significance in limiting luminal stenosis. The assay offers a rapid and reliable alternative to autoradiographic and morphometric techniques for evaluating growth kinetics and growth regulation in vivo.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Goldberg, I D -- Stemerman, M B -- Schnipper, L E -- Ransil, B J -- Crooks, G W -- Fuhro, R L -- New York, N.Y. -- Science. 1979 Aug 31;205(4409):920-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/472713" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Aorta/*cytology ; Arteriosclerosis/metabolism/pathology ; Cell Division ; DNA/biosynthesis ; Endothelium/cytology ; Male ; Muscle, Smooth/*cytology/metabolism ; Rabbits
    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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  • 6
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    Inherited epilepsy: spike-wave and focal motor seizures in the mutant mouse tottering (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1979-06-22
    Description: Mice with the mutant gene tottering (tg, chromosome 8, autosomal recessive) show, in adolescence, abnormal bursts of bilaterally synchronous spike waves as revealed in electrocorticograms recorded over long periods. The spike waves are accompanied by behavioral "absence" attacks and intermittent focal motor seizures showing somatotopic progression. Cerebral metabolic activity during seizures was assayed by autoradiography of brain sections from mice injected intravenously with 14C-labeled 2-deoxyglucose. Metabolic activity was increased bilaterally in selected brainstem structures. Spontaneous electrocorticographic and clinical seizures of this general pattern were recognized hitherto only in humans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Noebels, J L -- Sidman, R L -- New York, N.Y. -- Science. 1979 Jun 22;204(4399):1334-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/572084" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Animals ; Behavior/*physiology ; Brain/growth & development/physiopathology ; Electrocardiography ; Epilepsy/*genetics/physiopathology ; Humans ; Mice ; Mice, Neurologic Mutants/genetics/*physiology ; Neural Pathways/physiopathology ; Seizures/physiopathology ; Stereotyped Behavior/*physiology
    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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  • 7
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    Pigeons have magnets (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1979-09-07
    Description: Research on pigeon homing suggests that magnetic field information is used for orientation. The ability of pigeons to sense magnetic fields may be associated with a small, unilateral structure between the brain and the skull which contains magnetic in what appears to be single domains.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Walcott, C -- Gould, J L -- Kirschvink, J L -- New York, N.Y. -- Science. 1979 Sep 7;205(4410):1027-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/472725" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/physiology ; Columbidae/*physiology ; Head/physiology ; *Magnetics ; Orientation/*physiology
    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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  • 8
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    Orientation anisotropy of visual stimuli in rhesus monkey: a behavior study (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1979-08-03
    Description: The contrast sensitivity of the rhesus monkey was tested, according to a modified reaction-time paradigm, for sine-wave grating targets at different orientations. The monkey possesses an oblique effect slightly larger than that of humans. A reaction time analysis showed the oblique effect to be a suprathreshold as well as a threshold phenomenon. The presence of this effect further strengthens the use of the monkey as a model for the human visual system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Boltz, R L -- Harwerth, R S -- Smith, E L 3rd -- R01 EY001139/EY/NEI NIH HHS/ -- New York, N.Y. -- Science. 1979 Aug 3;205(4405):511-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/109923" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Behavior, Animal ; Haplorhini ; Humans ; Macaca mulatta ; Species Specificity ; *Visual Perception
    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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  • 9
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    Somatostatin cell processes as pathways for paracrine secretion (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1979-09-28
    Description: Somatostatin is produced by gastrointestinal endocrine cells that have long, nonluminal, cytoplasmic processes. Such processes terminate on other cell types, including gastrin-producing and hydrochloric acid-producing cells, whose functions are profoundly affected by somatostatin. The findings suggest that somatostatin cells control the functions of other cells through local release of the peptide by way of cytoplasmic processes. Also, certain other types of gastrointestinal endocrine cells have similar cytoplasmic prolongations, which may have analogous local (paracrine) regulatory functions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Larsson, L I -- Goltermann, N -- de Magistris, L -- Rehfeld, J F -- Schwartz, T W -- New York, N.Y. -- Science. 1979 Sep 28;205(4413):1393-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/382360" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Gastric Juice/*secretion ; Gastrins/secretion ; Humans ; Immunoenzyme Techniques ; Pyloric Antrum/cytology/*metabolism ; Rats ; Somatostatin/*physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 10
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    Histofluorescence techniques provide evidence for dopamine-containing neuronal elements in canine kidney (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1979-08-03
    Description: Changes induced by hydrochloric acid in the excitation spectrum of catecholamine fluorophores associated with the innervation of the canine renal vasculature show that there are neuronal elements at the glomerular vascular poles containing predominantly dopamine. In contrast, the catecholamine fluorescence in the periadventitial layer of the arcuate arteries is derived from norepinephrine. The dopamine-containing structures may represent the prejunctional counterpart to the pharmacologically identified dopamine receptors in the renal vasculature. As such, this system may be involved in the normal regulation of renal blood flow and renin release.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dinerstein, R J -- Vannice, J -- Henderson, R C -- Roth, L J -- Goldberg, L I -- Hoffmann, P C -- New York, N.Y. -- Science. 1979 Aug 3;205(4405):497-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/451614" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Catecholamines/analysis ; Dogs ; Dopamine/*analysis ; Kidney Glomerulus/*analysis/blood supply/innervation ; Microscopy, Fluorescence ; Neurons/*analysis ; Norepinephrine/analysis
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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