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  • 2005-2009  (136)
  • 1980-1984  (202)
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  • 1
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    Applied Regression Analysis (1981)
    Wiley
    In:  New York, 2nd Edition, 709 pp., Wiley, vol. 75, no. 2, pp. 2-203, (ISBN: 3-7643-7143-9)
    Details
    Publication Date: 1981
    Keywords: Correlation ; Data analysis / ~ processing ; fit ; Textbook of mathematics
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    BIBLIOGRAPHY SEISMOLOGY
  • 2
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    Bovine TB: don't get rid of the cat because the mice have gone (2008)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2008-12-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Smith, Noel H -- Clifton-Hadley, Richard -- England -- Nature. 2008 Dec 11;456(7223):700. doi: 10.1038/456700a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19079031" target="_blank"〉PubMed〈/a〉
    Keywords: Animal Husbandry/*methods ; Animals ; Cattle ; Great Britain ; Humans ; Population Surveillance ; Tuberculosis, Bovine/*epidemiology/prevention & control ; Zoonoses/epidemiology/transmission
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 3
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    How supercontinents and superoceans affect seafloor roughness (2008)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2008-12-19
    Description: Seafloor roughness varies considerably across the world's ocean basins and is fundamental to controlling the circulation and mixing of heat in the ocean and dissipating eddy kinetic energy. Models derived from analyses of active mid-ocean ridges suggest that ocean floor roughness depends on seafloor spreading rates, with rougher basement forming below a half-spreading rate threshold of 30-35 mm yr(-1) (refs 4, 5), as well as on the local interaction of mid-ocean ridges with mantle plumes or cold-spots. Here we present a global analysis of marine gravity-derived roughness, sediment thickness, seafloor isochrons and palaeo-spreading rates of Cretaceous to Cenozoic ridge flanks. Our analysis reveals that, after eliminating effects related to spreading rate and sediment thickness, residual roughness anomalies of 5-20 mGal remain over large swaths of ocean floor. We found that the roughness as a function of palaeo-spreading directions and isochron orientations indicates that most of the observed excess roughness is not related to spreading obliquity, as this effect is restricted to relatively rare occurrences of very high obliquity angles (〉45 degrees ). Cretaceous Atlantic ocean floor, formed over mantle previously overlain by the Pangaea supercontinent, displays anomalously low roughness away from mantle plumes and is independent of spreading rates. We attribute this observation to a sub-Pangaean supercontinental mantle temperature anomaly leading to slightly thicker than normal Late Jurassic and Cretaceous Atlantic crust, reduced brittle fracturing and smoother basement relief. In contrast, ocean crust formed above Pacific superswells, probably reflecting metasomatized lithosphere underlain by mantle at only slightly elevated temperatures, is not associated with basement roughness anomalies. These results highlight a fundamental difference in the nature of large-scale mantle upwellings below supercontinents and superoceans, and their impact on oceanic crustal accretion.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Whittaker, Joanne M -- Muller, R Dietmar -- Roest, Walter R -- Wessel, Paul -- Smith, Walter H F -- England -- Nature. 2008 Dec 18;456(7224):938-41. doi: 10.1038/nature07573.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Earthbyte Group, School of Geosciences, Building F09, The University of Sydney, Sydney, New South Wales 2006, Australia. jw@getech.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19092932" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 4
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    Detection of perchlorate and the soluble chemistry of martian soil at the Phoenix lander site (2009)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2009-07-04
    Description: The Wet Chemistry Laboratory on the Phoenix Mars Lander performed aqueous chemical analyses of martian soil from the polygon-patterned northern plains of the Vastitas Borealis. The solutions contained approximately 10 mM of dissolved salts with 0.4 to 0.6% perchlorate (ClO4) by mass leached from each sample. The remaining anions included small concentrations of chloride, bicarbonate, and possibly sulfate. Cations were dominated by Mg2+ and Na+, with small contributions from K+ and Ca2+. A moderately alkaline pH of 7.7 +/- 0.5 was measured, consistent with a carbonate-buffered solution. Samples analyzed from the surface and the excavated boundary of the approximately 5-centimeter-deep ice table showed no significant difference in soluble chemistry.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hecht, M H -- Kounaves, S P -- Quinn, R C -- West, S J -- Young, S M M -- Ming, D W -- Catling, D C -- Clark, B C -- Boynton, W V -- Hoffman, J -- Deflores, L P -- Gospodinova, K -- Kapit, J -- Smith, P H -- New York, N.Y. -- Science. 2009 Jul 3;325(5936):64-7. doi: 10.1126/science.1172466.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA. michael.h.hecht@jpl.nasa.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19574385" target="_blank"〉PubMed〈/a〉
    Keywords: *Anions ; *Cations ; Chemical Phenomena ; Extraterrestrial Environment ; Hydrogen-Ion Concentration ; *Mars ; Oxidation-Reduction ; *Perchlorates ; Solubility ; Spacecraft ; Temperature ; Water
    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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    Mars water-ice clouds and precipitation (2009)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2009-07-04
    Description: The light detection and ranging instrument on the Phoenix mission observed water-ice clouds in the atmosphere of Mars that were similar to cirrus clouds on Earth. Fall streaks in the cloud structure traced the precipitation of ice crystals toward the ground. Measurements of atmospheric dust indicated that the planetary boundary layer (PBL) on Mars was well mixed, up to heights of around 4 kilometers, by the summer daytime turbulence and convection. The water-ice clouds were detected at the top of the PBL and near the ground each night in late summer after the air temperature started decreasing. The interpretation is that water vapor mixed upward by daytime turbulence and convection forms ice crystal clouds at night that precipitate back toward the surface.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Whiteway, J A -- Komguem, L -- Dickinson, C -- Cook, C -- Illnicki, M -- Seabrook, J -- Popovici, V -- Duck, T J -- Davy, R -- Taylor, P A -- Pathak, J -- Fisher, D -- Carswell, A I -- Daly, M -- Hipkin, V -- Zent, A P -- Hecht, M H -- Wood, S E -- Tamppari, L K -- Renno, N -- Moores, J E -- Lemmon, M T -- Daerden, F -- Smith, P H -- New York, N.Y. -- Science. 2009 Jul 3;325(5936):68-70. doi: 10.1126/science.1172344.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Earth and Space Science and Engineering, York University, Toronto, Ontario, Canada. whiteway@yorku.ca〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19574386" target="_blank"〉PubMed〈/a〉
    Keywords: Atmosphere ; Extraterrestrial Environment ; *Ice ; *Mars ; Spacecraft ; *Steam ; Temperature ; 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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  • 6
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    H2O at the Phoenix landing site (2009)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2009-07-04
    Description: The Phoenix mission investigated patterned ground and weather in the northern arctic region of Mars for 5 months starting 25 May 2008 (solar longitude between 76.5 degrees and 148 degrees ). A shallow ice table was uncovered by the robotic arm in the center and edge of a nearby polygon at depths of 5 to 18 centimeters. In late summer, snowfall and frost blanketed the surface at night; H(2)O ice and vapor constantly interacted with the soil. The soil was alkaline (pH = 7.7) and contained CaCO(3), aqueous minerals, and salts up to several weight percent in the indurated surface soil. Their formation likely required the presence of water.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Smith, P H -- Tamppari, L K -- Arvidson, R E -- Bass, D -- Blaney, D -- Boynton, W V -- Carswell, A -- Catling, D C -- Clark, B C -- Duck, T -- Dejong, E -- Fisher, D -- Goetz, W -- Gunnlaugsson, H P -- Hecht, M H -- Hipkin, V -- Hoffman, J -- Hviid, S F -- Keller, H U -- Kounaves, S P -- Lange, C F -- Lemmon, M T -- Madsen, M B -- Markiewicz, W J -- Marshall, J -- McKay, C P -- Mellon, M T -- Ming, D W -- Morris, R V -- Pike, W T -- Renno, N -- Staufer, U -- Stoker, C -- Taylor, P -- Whiteway, J A -- Zent, A P -- New York, N.Y. -- Science. 2009 Jul 3;325(5936):58-61. doi: 10.1126/science.1172339.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ 85721, USA. psmith@lpl.arizona.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19574383" target="_blank"〉PubMed〈/a〉
    Keywords: Calcium Carbonate ; Extraterrestrial Environment ; Hydrogen-Ion Concentration ; *Ice ; *Mars ; Robotics ; Spacecraft ; Temperature ; *Water
    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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    Evidence for calcium carbonate at the Mars Phoenix landing site (2009)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2009-07-04
    Description: Carbonates are generally products of aqueous processes and may hold important clues about the history of liquid water on the surface of Mars. Calcium carbonate (approximately 3 to 5 weight percent) has been identified in the soils around the Phoenix landing site by scanning calorimetry showing an endothermic transition beginning around 725 degrees C accompanied by evolution of carbon dioxide and by the ability of the soil to buffer pH against acid addition. Based on empirical kinetics, the amount of calcium carbonate is most consistent with formation in the past by the interaction of atmospheric carbon dioxide with liquid water films on particle surfaces.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Boynton, W V -- Ming, D W -- Kounaves, S P -- Young, S M M -- Arvidson, R E -- Hecht, M H -- Hoffman, J -- Niles, P B -- Hamara, D K -- Quinn, R C -- Smith, P H -- Sutter, B -- Catling, D C -- Morris, R V -- New York, N.Y. -- Science. 2009 Jul 3;325(5936):61-4. doi: 10.1126/science.1172768.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ 85721, USA. wboynton@LPL.Arizona.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19574384" target="_blank"〉PubMed〈/a〉
    Keywords: *Calcium Carbonate ; Carbon Dioxide ; Chemical Precipitation ; Extraterrestrial Environment ; Hot Temperature ; Hydrogen-Ion Concentration ; *Mars ; Spacecraft ; Water
    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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  • 8
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    Genetic vulnerability (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-11-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Porter, W M -- Smith, D H Jr -- New York, N.Y. -- Science. 1981 Nov 20;214(4523):862.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17782425" 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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  • 9
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    Low nitrogen to phosphorus ratios favor dominance by blue-green algae in lake phytoplankton (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-08-12
    Description: An analysis of growing season data from 17 lakes throughout the world suggests that the relative proportion of blue-green algae (Cyanophyta) in the epilimnetic phytoplankton is dependent on the epilimnetic ratio of total nitrogen to total phosphorus. Blue-green algae tended to be rare when this ratio exceeded 29 to 1 by weight, suggesting that modification of this ratio by control of nutrient additions may provide a means by which lake water quality can be managed.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Smith, V H -- New York, N.Y. -- Science. 1983 Aug 12;221(4611):669-71.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17787737" 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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  • 10
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    All variegated plants are not chimeras (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1984-02-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Norris, R E -- Smith, R H -- Vaughn, K C -- New York, N.Y. -- Science. 1984 Feb 3;223(4635):505.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17781446" 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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