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  • Articles  (739)
  • American Association for the Advancement of Science (AAAS)  (700)
  • Blackwell Publishing Ltd
  • 1975-1979  (739)
  • Physics  (739)
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  • Articles  (739)
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  • 1
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    Nonpneumonic, short-incubation-period Legionellosis (Pontiac fever) in men who cleaned a steam turbine condenser (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1979-08-17
    Description: Pontiac fever affected ten men who had cleaned a steam turbine condenser with compressed air. Previous epidemics of Pontiac fever and Legionnaires' disease--both caused by Legionella Pneumophila (proposed sp. nov.)--involved "airborne spread" from air-conditioning cooling towers or evaporative condensers. Aerosols of contaminated water in heat-rejection systems appear to be important sources of epidemic legionellosis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fraser, D W -- Deubner, D C -- Hill, D L -- Gilliam, D K -- New York, N.Y. -- Science. 1979 Aug 17;205(4407):690-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/462175" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Air Microbiology ; Humans ; Legionnaires' Disease/*etiology/microbiology/transmission ; Male ; Occupational Medicine ; 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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  • 2
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    Planetary radio astronomy observations from voyager 2 near jupiter (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1979-11-23
    Description: The Voyager 2 Planetary Radio Astronomy experiment to Jupiter has confirmed and extended to higher zenomagnetic latitudes results from the identical experiment carried by Voyager 1. The kilometric emissions discovered by Voyager 1 often extended to 1 megahertz or higher on Voyager 2 and often consisted of negatively or, less frequently, positively drifting narrowband bursts. On the basis of tentative identification of plasma wave emissions similar to those detected by Voyager 1, the plasma torus associated with Io appeared somewhat denser to Voyager 2 than it did to Voyager 1. We report here on quasiperiodic sinusoidal or impulsive bursts in the broadcast band range of wavelengths (800 to 1800 kilohertz). A Faraday effect appears at decametric frequencies, which probably results from propagation of the radiation near its sources on Jupiter. Finally, we discuss the occurrence of decametric emission in homologous arc families.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pearce, J B -- Riddle, A C -- Warwick, J W -- Alexander, J K -- Desch, M D -- Kaiser, M L -- Thieman, J R -- Carr, T D -- Gulkis, S -- Boischot, A -- Leblanc, Y -- Pedersen, B M -- Staelin, D H -- New York, N.Y. -- Science. 1979 Nov 23;206(4421):991-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17733921" 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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  • 3
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    Brain tumors in owl monkeys inoculated with a human polyomavirus (JC virus) (1978)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1978-09-29
    Description: Owl monkeys were inoculated intracerebrally, subcutaneously, and intravenously with JC, BK, or SV40 virus. Two of four adult owl monkeys inoculated with JC virus, a human polyomavirus, developed brain tumors at 16 and 25 months after inoculation, respectively. A grade 3 to grade 4 astrocytoma (resembling a human glioblastoma multiforme) was found in the left cerebral hemisphere and brainstem of one monkey. The second monkey developed a malignant tumor in the left cerebral hemisphere containing both glial and neuronal cell types. Impression smears prepared from unfixed tissue of this tumor showed cells that contained polyomavirus T antigen. Virion antigens were not detected. Tumor cells cultured in vitro also contained T antigen but were negative for virion antigen. Infectious virus was not isolated from extracts of this tumor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉London, W T -- Houff, S A -- Madden, D L -- Fuccillo, D A -- Gravell, M -- Wallen, W C -- Palmer, A E -- Sever, J L -- Padgett, B L -- Walker, D L -- ZuRhein, G M -- Ohashi, T -- New York, N.Y. -- Science. 1978 Sep 29;201(4362):1246-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/211583" target="_blank"〉PubMed〈/a〉
    Keywords: Antibodies, Viral/analysis ; Antigens, Viral/analysis ; Brain Neoplasms/*etiology/pathology ; Immunosuppression ; Neoplasms, Experimental/etiology/pathology ; *Polyomavirus/immunology
    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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    Determination of the pore size of cell walls of living plant cells (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1979-09-14
    Description: The limiting diameter of pores in the walls of living plant cells through which molecules can freely pass has been determined by a solute exclusion technique to be 35 to 38 angstroms for hair cells of Raphanus sativus roots and fibers of Gossypium hirsutum, 38 to 40 angstroms for cultured cells of Acer pseudoplatanus, and 45 to 52 angstroms for isolated palisade parenchyma cells of the leaves of Xanthium strumarium and Commelina communis. These results indicate that molecules with diameters larger than these pores would be restricted in their ability to penetrate such a cell wall, and that such a wall may represent a more significant barrier to cellular communication than has been previously assumed.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carpita, N -- Sabularse, D -- Montezinos, D -- Delmer, D P -- New York, N.Y. -- Science. 1979 Sep 14;205(4411):1144-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17735052" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
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    Cloud images from the pioneer venus orbiter (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1979-07-06
    Description: Ultraviolet images of Venus over a 3-month period show marked evolution of the planetary scale features in the cloud patterns. The dark horizontal Y feature recurs quasi-periodically, at intervals of about 4 days, but it has also been absent for periods of several weeks. Bow-shaped features observed in Pioneer Venus images are farther upstream from the subsolar point than those in Mariner 10 images.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Travis, L D -- Coffeen, D L -- Del Genio, A D -- Hansen, J E -- Kawabata, K -- Lacis, A A -- Lane, W A -- Limaye, S S -- Rossow, W B -- Stone, P H -- New York, N.Y. -- Science. 1979 Jul 6;205(4401):74-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17778907" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
    Electronic Resource
    Electronic Resource
    COMPARATIVE ANALYSIS OF TIME DOMAIN AND FREQUENCY DOMAIN IN THE INDUCED POLARIZATION PROSPECTING METHOD (1977)
    Oxford, UK : Blackwell Publishing Ltd
    Geophysical prospecting 25 (1977), S. 0 
    Details
    ISSN: 1365-2478
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences , Physics
    Notes: The polarization content of a medium, in both the time and frequency domains, can be described by parameters which differ in inherent physical meaning and their practical significance.For real situations, general expressions for the apparent parameters, previously determined for both domains, exist for the general case of soundings on a horizontally multi-layered earth.The comparative analysis of these expressions, here restricted to the simple case of a two-layered earth, shows that the theoretical sounding curves of the frequency-domain are different from those of the time-domain. In particular, for every resistivity or chargeability contrasts examined, the apparent frequency-effect curve lies always over the corresponding apparent chargeability curve, but both curves reach the same asymptotical values for shortest and largest spacings.The important conclusions which can be drawn from this result is that both techniques are suitable to investigate subsoil polarizability anomalies. However, from a practical point of view, it is more convenient to adopt the frequency-domain technique when the polarizability increases with depth, while, on the contrary, the time-domain technique is more efficacious when the polarizability decreases with depth.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2478.1977.tb01184.x
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  • 7
    Electronic Resource
    Electronic Resource
    VIBROSEIS DECONVOLUTION (1975)
    Oxford, UK : Blackwell Publishing Ltd
    Geophysical prospecting 23 (1975), S. 0 
    Details
    ISSN: 1365-2478
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences , Physics
    Notes: Vibroseis deconvolution can be performed either before or after correlation. As regards the deconvolution before correlation, the Vibroseis deconvolution operator can be described as convolution of a spike deconvolution operator with a minimum-phase filter operator with bandpass properties. As regards the deconvolution after correlation, the deconvolution operator can be shown to be the convolution of three operators: spike deconvolution operator and two-fold convolution with a minimum phase operator. Time-varying Vibroseis deconvolution can particularly well be described and performed after correlation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2478.1975.tb01534.x
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  • 8
    Electronic Resource
    Electronic Resource
    THE QUANTITATIVE ANALYSIS OF FREQUENCY-DOMAIN INDUCED POLARIZATION SOUNDINGS OVER HORIZONTAL BEDS (1976)
    Oxford, UK : Blackwell Publishing Ltd
    Geophysical prospecting 24 (1976), S. 0 
    Details
    ISSN: 1365-2478
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences , Physics
    Notes: Following up our recent study of an indirect procedure for the practical determination of the maximum frequency-effect, defined as fe = 1 − pρ∞/ρdc with ρ∞ the resistivity at infinite frequency, we show at first how, through the Laplace transform theory, ρ∞ can be related to stationary field vectors in the simple form of Ohm's law. Then applying the equation of continuity for stationary currents with a suitable set of boundary conditions, we derive the integral expression of the apparent resistivity at infinite frequency ρ∞,a in the case of a horizontally layered earth. Finally, from the definition of the maximum apparent frequency-effect, analytical expressions of feα are obtained for both Schlumberger and dipole arrays placed on the surface of the multi-layered earth section in the most general situation of vertical changes in induced polarization together with dc resistivity variations not at the same interfaces. Direct interpretation procedures are suggested for obtaining the layering parameters directly from the analysis of the sounding curves.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2478.1976.tb00930.x
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  • 9
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    Dieldrin-induced mortality in an endangered species, the gray bat (Myotis grisescens) (1978)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1978-03-24
    Description: Brains of juvenile gray bats, Myotis grisescens, found dead beneath maternity roosts in two Missouri caves contained lethal concentrations of dieldrin. One colony appeared to be abnormally small, and more dead bats were found a year after the juvenile bats had been collected. This is the first report to link the field mortality of bats directly to insecticide residues acquired through the food chain.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Clark, D R Jr -- LaVal, R K -- Swineford, D M -- New York, N.Y. -- Science. 1978 Mar 24;199(4335):1357-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/564550" target="_blank"〉PubMed〈/a〉
    Keywords: Aldrin/adverse effects ; Animals ; Body Weight ; Brain Chemistry ; *Chiroptera ; Dieldrin/*adverse effects/analysis ; Environmental Exposure ; Female ; Lactation ; Male ; Missouri ; Pesticide Residues ; Pregnancy
    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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  • 10
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    The cyril burt question: new findings (1978)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1978-09-29
    Description: Cyril Burt presented data in his classic paper "Intelligence and social mobility" that were in perfect agreement with a genetic theory of IQ and social class. A detailed analysis of these data reveals, beyond reasonable doubt, that they were fabricated from a theoretical normal curve, from a genetic regression equation, and from figures published more than 30 years before Burt completed his surveys.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dorfman, D D -- New York, N.Y. -- Science. 1978 Sep 29;201(4362):1177-86.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17801372" 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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