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  • AERODYNAMICS  (526)
  • Humans  (339)
  • 1980-1984  (531)
  • 1975-1979  (334)
  • 1
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    Visual phenomena induced by relativistic carbon ions with and without Cerenkov radiation (1978)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1978-07-28
    Description: Exposing the human eye to individual carbon ions (6C+) moving at relativistic speeds results in visual phenomena that include point flashes, streaks, and larger diffuse flashes. The diffuse flashes have previously been observed by astronauts in space but not in laboratory experiments with particles of high atomic number and energy. They are observed only when the nucleus moves fast enough to generate Cerenkov radiation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McNulty, P J -- Pease, V P -- Bond, V P -- New York, N.Y. -- Science. 1978 Jul 28;201(4353):341-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/663660" target="_blank"〉PubMed〈/a〉
    Keywords: *Carbon ; Cations, Monovalent ; Humans ; Motion ; *Space Flight ; Vision, Ocular/*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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  • 2
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    Cancer incidence in the Love Canal area (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-06-19
    Description: Data from the New York Cancer Registry show no evidence for higher cancer rates associated with residence near the Love Canal toxic waste burial site in comparison with the entire state outside of New York City. Rates of liver cancer, lymphoma, and leukemia, which were selected for special attention, were not consistently elevated. Among the other cancers studied, a higher rate was noted only for respiratory cancer, but it was not consistent across age groups and appeared to be related to a high rate for the entire city of Niagara Falls. There was no evidence that the lung cancer rate was associated with the toxic wastes buried at the dump site.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Janerich, D T -- Burnett, W S -- Feck, G -- Hoff, M -- Nasca, P -- Polednak, A P -- Greenwald, P -- Vianna, N -- New York, N.Y. -- Science. 1981 Jun 19;212(4501):1404-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7233229" target="_blank"〉PubMed〈/a〉
    Keywords: Carcinogens ; Female ; Humans ; Leukemia/epidemiology ; Liver Neoplasms/epidemiology ; Lymphoma/epidemiology ; Male ; Neoplasms/*epidemiology ; New York ; Registries ; Soil Pollutants/*adverse effects
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 3
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    Bimodal distribution of dopamine receptor densities in brains of schizophrenics (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1984-08-17
    Description: The dopamine hypothesis of schizophrenia was examined by measuring the density of dopamine receptors in the postmortem brains of 81 control subjects and 59 schizophrenics from four different countries. The densities of dopamine receptors in the tissues from the schizophrenic patients had a bimodal distribution in the caudate nucleus, putamen, and nucleus accumbens. One mode occurred 25 percent above the control density, and a second mode occurred at a density 2.3 times that of the control density for all three regions. Although almost all the patients had been medicated with neuroleptics, the two modes had the same dissociation constant for the labeled ligand used, suggesting that the neuroleptic doses were similar for the two populations of schizophrenics. The results thus provide direct evidence for two distinct categories of schizophrenia.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Seeman, P -- Ulpian, C -- Bergeron, C -- Riederer, P -- Jellinger, K -- Gabriel, E -- Reynolds, G P -- Tourtellotte, W W -- New York, N.Y. -- Science. 1984 Aug 17;225(4663):728-31.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6147018" target="_blank"〉PubMed〈/a〉
    Keywords: Antipsychotic Agents/pharmacology ; *Brain Chemistry/drug effects ; Caudate Nucleus/analysis ; Dopamine/physiology ; Humans ; Nucleus Accumbens/analysis ; Putamen/analysis ; Receptors, Dopamine/*analysis/drug effects ; Schizophrenia/*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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  • 4
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    Psychological stress induces sodium and fluid retention in men at high risk for hypertension (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-04-22
    Description: Exposure to competitive mental tasks significantly reduced the urinary sodium and fluid excreted by young men with one or two hypertensive parents or with borderline hypertension. In this high-risk group, the degree of retention was directly related to the magnitude of heart rate increase during stress, suggesting common mediation by way of the sympathetic nervous system. Thus, psychological stress appears to induce changes in renal excretory functions that may play a critical role in long-term blood pressure regulation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Light, K C -- Koepke, J P -- Obrist, P A -- Willis, P W 4th -- HL-01096/HL/NHLBI NIH HHS/ -- HL-18976/HL/NHLBI NIH HHS/ -- HL-23718/HL/NHLBI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1983 Apr 22;220(4595):429-31.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6836285" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Blood Pressure ; Heart Rate ; Humans ; Hypertension/etiology/*physiopathology ; Kidney/physiopathology ; Male ; Risk ; Sodium/*metabolism ; Stress, Psychological/metabolism/*physiopathology ; *Water-Electrolyte Balance
    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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  • 5
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    Insulin antibodies in insulin-dependent diabetics before insulin treatment (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-12-23
    Description: A sensitive assay was used to measure the binding of iodine-125-labeled insulin in serum obtained from 112 newly diagnosed insulin-dependent diabetics before insulin treatment was initiated. Two groups of nondiabetics served as controls: children with a variety of diseases other than diabetes and nondiabetic siblings of insulin-dependent diabetics. Eighteen of the diabetics were found to have elevated binding and 36 were above the 95th percentile of control values. The insulin-binding protein is precipitated by antibody to human immunoglobulin G, has a displacement curve that is parallel and over the same concentration range as serum from long-standing insulin-dependent diabetics, and elutes from a Sephacryl S-300 column at the position of gamma globulin. These insulin antibodies are present in a large percentage of newly diagnosed, untreated diabetics and may be an immune marker of B-cell damage.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Palmer, J P -- Asplin, C M -- Clemons, P -- Lyen, K -- Tatpati, O -- Raghu, P K -- Paquette, T L -- AM17047/AM/NIADDK NIH HHS/ -- AM30780/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1983 Dec 23;222(4630):1337-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6362005" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Autoantibodies/*analysis ; Child ; Diabetes Mellitus, Type 1/drug therapy/*immunology ; Humans ; Insulin/*immunology/therapeutic use
    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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    Alcoholism studies (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-05-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barlow, D H -- Bellack, A S -- Buchwald, A M -- Garfield, S L -- Hartmann, D P -- Herman, C P -- Hersen, M -- Miller, P M -- Rachman, S -- Wolpe, J -- New York, N.Y. -- Science. 1983 May 6;220(4597):554, 556.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6836301" target="_blank"〉PubMed〈/a〉
    Keywords: Alcoholism/*therapy ; *Behavioral Research ; Canada ; *Editorial Policies ; *Ethics, Medical ; Humans ; United States
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
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    Natural laminar flow data from full-scale flight and wind-tunnel experiments (1981)
    In:  Other Sources
    Details
    Publication Date: 2018-12-01
    Description: Experimental results obtained at NASA Langley during studies of natural laminar flow (NLF) over commercially produced aircraft surfaces are reported. The general aviation aircraft examined were light aircraft, yet displayed NLF extents close to the maximum available and equivalent to high performance business aircraft flying envelopes. Sublimating chemicals and acoustic detection techniques were employed to measure the boundary layer transition. Theoretical predictions of boundary layer stability were found to match well with the experimental data, with consideration given to both swept wings and the amplitudes of allowable waves on the airfoil surfaces. The presence of the NLF on the airfoil surfaces confirmed the benefits available from use of composite materials for airfoil surfaces.
    Keywords: AERODYNAMICS
    Format: text
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    NASA TECHNICAL REPORTS
  • 8
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    Correction factory techniques for improving aerodynamic prediction methods (1976)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: A method for correcting discrete element lifting surface theory to reflect given experimental data is presented. Theoretical pressures are modified such that imposed constraints are satisfied while minimizing the changes to the pressures. Several types of correction procedures are presented and correlated; (1) scaling of pressures; (2) scaling of downwash values; and (3) addition of an increment to the downwash that is proportioned to pressure. Some special features are included in these methods and they include: (1) consideration of experimental data from multiple deflection modes, (2) limitation of the amplitudes of the correction factors, and (3) the use of correction factor mode shapes. These methods are correlated for cases involving all three Mach Number ranges using a FORTRAN IV computer program. Subsonically, a wing with an oscillating partial span control surface and a wing with a leading edge droop are presented. Transonically a two-dimensional airfoil with an oscillating flap is considered. Supersonically an arrow wing with and without camber is analyzed. In addition to correction factor methods an investigation is presented dealing with a new simplified transonic modification of the two-dimensional subsonic lifting surface theory. Correlations are presented for an airfoil with an oscillating flap.
    Keywords: AERODYNAMICS
    Type: NASA-CR-144967
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 9
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    Low-speed wind tunnel investigation of an advanced supersonic cruise arrow-wing configuration (1977)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: A preliminary assessment of possible means for improving the low speed aerodynamic characteristics of advanced supersonic cruise arrow wing configurations and to extend the existing data base of such configurations has been made. Principle configuration variables included wing-leading and trailing-edge flap deflection, fuselage nose strakes, and engine exhaust nozzle deflection. Results showed that deflecting the wing leading edge apex flaps downward provided improved longitudinal stability but resulted in reduced directional stability. The model exhibited relatively low values of directional stability over the operational angle of attack range and experienced large asymmetric yawing moments at high angles of attack. The use of nose strakes was found to be effective in increasing the directional stability and eliminating the asymmetric yawing moment.
    Keywords: AERODYNAMICS
    Type: NASA-TM-74043
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    NASA TECHNICAL REPORTS
  • 10
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    Oral cocaine: plasma concentrations and central effects (1978)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1978-04-14
    Description: Cocaine (2.0 milligrams per kilogram) given by the oral route is at least as effective as the same dose given intranasally. Cocaine is not detected in the plasma until 30 minutes after oral administration, but peak plasma concentrations are similar after both routes. The subjective "highs" in man are greater after oral than after intranasal administration.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Van Dyke, C -- Jatlow, P -- Ungerer, J -- Barash, P G -- Byck, R -- New York, N.Y. -- Science. 1978 Apr 14;200(4338):211-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24895" target="_blank"〉PubMed〈/a〉
    Keywords: Administration, Intranasal ; Administration, Oral ; Adult ; Cocaine/*administration & dosage/blood/pharmacology ; Euphoria/drug effects ; Humans ; Hydrogen-Ion Concentration ; Intestinal Absorption ; Male ; Time Factors
    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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