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  • American Association for the Advancement of Science (AAAS)  (35)
  • American Physical Society (APS)
  • American Geophysical Union (AGU)
  • 2005-2009  (35)
  • 2007  (35)
  • 1
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    Climate change, deforestation, and the fate of the Amazon (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007
    Description: The forest biome of Amazonia is one of Earth's greatest biological treasures and a major component of the Earth system. This century, it faces the dual threats of deforestation and stress from climate change. Here, we summarize some of the latest findings and thinking on these threats, explore the consequences for the forest ecosystem and its human residents, and outline options for the future of Amazonia. We also discuss the implications of new proposals to finance preservation of Amazonian forests.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Malhi, Yadvinder -- Roberts, J Timmons -- Betts, Richard A -- Killeen, Timothy J -- Li, Wenhong -- Nobre, Carlos A -- New York, N.Y. -- Science. 2008 Jan 11;319(5860):169-72. Epub 2007 Nov 29.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Environmental Change Institute, Oxford University Centre for the Environment, South Parks Road, Oxford OX1 3QY, UK. yadvinder.malhi@ouce.ox.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18048654" target="_blank"〉PubMed〈/a〉
    Keywords: Agriculture ; Animals ; Biodiversity ; Brazil ; *Climate ; *Conservation of Natural Resources/economics/trends ; Disasters ; *Ecosystem ; Fires ; Greenhouse Effect ; Humans ; South America ; *Trees
    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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    Indirect aerosol forcing (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-09-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Penner, J E -- Rotstayn, L D -- Crowley, T J -- New York, N.Y. -- Science. 2000 Oct 20;290(5491):407a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17844274" 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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    Clarifying the SF5CF3 Record (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-08-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hites, R A -- Santoro, M A -- Sturges, W T -- Oram, D E -- Penkett, S A -- Wallington, T J -- Shine, K P -- Brenninkmeijer, C A -- New York, N.Y. -- Science. 2000 Nov 3;290(5493):935-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17749186" 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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  • 4
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    Questioning evidence for recombination in human mitochondrial DNA (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-09-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kivisild, T -- Villems, R -- Jorde, L B -- Bamshad, M -- Kumar, S -- Hedrick, P -- Dowling, T -- Stoneking, M -- Parsons, T J -- Irwin, J A -- Awadalla, P -- Eyre-Walker, A -- Smith, J M -- New York, N.Y. -- Science. 2000 Jun 16;288(5473):1931a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17835098" 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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    The position of moving objects (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-09-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Krekelberg, B -- Lappe, M -- Whitney, D -- Cavanagh, P -- Eagleman, D M -- Sejnowski, T J -- New York, N.Y. -- Science. 2000 Aug 18;289(5482):1107a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17833394" 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
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    Comment on "Impacts of biodiversity loss on ocean ecosystem services" (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-06-02
    Description: Worm et al. (Research Articles, 3 November 2006, p. 787) reported an increasing proportion of fisheries in a "collapsed" state. We show that this may be an artifact of their definition of collapse as a fixed percentage of the maximum and that an increase in the number of managed fisheries could produce similar patterns as an increase in fisheries with catches below 10% of the maximum.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wilberg, Michael J -- Miller, Thomas J -- New York, N.Y. -- Science. 2007 Jun 1;316(5829):1285; author reply 1285.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Chesapeake Biological Laboratory, University of Maryland Center for Environmental Science, P.O. Box 38, Solomons, MD 20688, USA. wilberg@cbl.umces.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17540885" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biodiversity ; Conservation of Natural Resources ; *Ecosystem ; *Fisheries ; *Fishes ; Forecasting ; Population Dynamics
    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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    Free-drifting icebergs: hot spots of chemical and biological enrichment in the Weddell Sea (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-06-26
    Description: The proliferation of icebergs from Antarctica over the past decade has raised questions about their potential impact on the surrounding pelagic ecosystem. Two free-drifting icebergs, 0.1 and 30.8 square kilometers in aerial surface area, and the surrounding waters were sampled in the northwest Weddell Sea during austral spring 2005. There was substantial enrichment of terrigenous material, and there were high concentrations of chlorophyll, krill, and seabirds surrounding each iceberg, extending out to a radial distance of approximately 3.7 kilometers. Extrapolating these results to all icebergs in the same size range, with the use of iceberg population estimates from satellite surveys, indicates that they similarly affect 39% of the surface ocean in this region. These results suggest that free-drifting icebergs can substantially affect the pelagic ecosystem of the Southern Ocean and can serve as areas of enhanced production and sequestration of organic carbon to the deep sea.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Smith, Kenneth L Jr -- Robison, Bruce H -- Helly, John J -- Kaufmann, Ronald S -- Ruhl, Henry A -- Shaw, Timothy J -- Twining, Benjamin S -- Vernet, Maria -- New York, N.Y. -- Science. 2007 Jul 27;317(5837):478-82. Epub 2007 Jun 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Monterey Bay Aquarium Research Institute (MBARI), 7700 Sandholdt Road, Moss Landing, CA 95039, USA. ksmith@mbari.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17588896" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antarctic Regions ; *Birds ; Chlorophyll/analysis ; *Ecosystem ; *Ice Cover ; Oceans and Seas ; *Phytoplankton/growth & development ; Sodium Chloride/analysis ; Trace Elements/analysis ; Water Movements ; *Zooplankton/growth & development
    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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    Pyroclastic activity at Home Plate in Gusev Crater, Mars (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-05-05
    Description: Home Plate is a layered plateau in Gusev crater on Mars. It is composed of clastic rocks of moderately altered alkali basalt composition, enriched in some highly volatile elements. A coarsegrained lower unit lies under a finer-grained upper unit. Textural observations indicate that the lower strata were emplaced in an explosive event, and geochemical considerations favor an explosive volcanic origin over an impact origin. The lower unit likely represents accumulation of pyroclastic materials, whereas the upper unit may represent eolian reworking of the same pyroclastic materials.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Squyres, S W -- Aharonson, O -- Clark, B C -- Cohen, B A -- Crumpler, L -- de Souza, P A -- Farrand, W H -- Gellert, R -- Grant, J -- Grotzinger, J P -- Haldemann, A F C -- Johnson, J R -- Klingelhofer, G -- Lewis, K W -- Li, R -- McCoy, T -- McEwen, A S -- McSween, H Y -- Ming, D W -- Moore, J M -- Morris, R V -- Parker, T J -- Rice, J W Jr -- Ruff, S -- Schmidt, M -- Schroder, C -- Soderblom, L A -- Yen, A -- New York, N.Y. -- Science. 2007 May 4;316(5825):738-42.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Astronomy, Space Sciences Building, Cornell University, Ithaca, NY 14853, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17478719" target="_blank"〉PubMed〈/a〉
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  • 9
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    Saturation of the southern ocean CO2 sink due to recent climate change (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-05-19
    Description: Based on observed atmospheric carbon dioxide (CO2) concentration and an inverse method, we estimate that the Southern Ocean sink of CO2 has weakened between 1981 and 2004 by 0.08 petagrams of carbon per year per decade relative to the trend expected from the large increase in atmospheric CO2. We attribute this weakening to the observed increase in Southern Ocean winds resulting from human activities, which is projected to continue in the future. Consequences include a reduction of the efficiency of the Southern Ocean sink of CO2 in the short term (about 25 years) and possibly a higher level of stabilization of atmospheric CO2 on a multicentury time scale.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Le Quere, Corinne -- Rodenbeck, Christian -- Buitenhuis, Erik T -- Conway, Thomas J -- Langenfelds, Ray -- Gomez, Antony -- Labuschagne, Casper -- Ramonet, Michel -- Nakazawa, Takakiyo -- Metzl, Nicolas -- Gillett, Nathan -- Heimann, Martin -- New York, N.Y. -- Science. 2007 Jun 22;316(5832):1735-8. Epub 2007 May 17.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max Planck Institut fur Biogeochemie, Postfach 100164, D-07701 Jena, Germany. c.lequere@uea.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17510327" target="_blank"〉PubMed〈/a〉
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  • 10
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    Mobile DNA in Old World monkeys: a glimpse through the rhesus macaque genome (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-04-14
    Description: The completion of the draft sequence of the rhesus macaque genome allowed us to study the genomic composition and evolution of transposable elements in this representative of the Old World monkey lineage, a group of diverse primates closely related to humans. The L1 family of long interspersed elements appears to have evolved as a single lineage, and Alu elements have evolved into four currently active lineages. We also found evidence of elevated horizontal transmissions of retroviruses and the absence of DNA transposon activity in the Old World monkey lineage. In addition, approximately 100 precursors of composite SVA (short interspersed element, variable number of tandem repeat, and Alu) elements were identified, with the majority being shared by the common ancestor of humans and rhesus macaques. Mobile elements compose roughly 50% of primate genomes, and our findings illustrate their diversity and strong influence on genome evolution between closely related species.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Han, Kyudong -- Konkel, Miriam K -- Xing, Jinchuan -- Wang, Hui -- Lee, Jungnam -- Meyer, Thomas J -- Huang, Charles T -- Sandifer, Erin -- Hebert, Kristi -- Barnes, Erin W -- Hubley, Robert -- Miller, Webb -- Smit, Arian F A -- Ullmer, Brygg -- Batzer, Mark A -- GM59290/GM/NIGMS NIH HHS/ -- R01 HG002939/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2007 Apr 13;316(5822):238-40.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Sciences, Biological Computation and Visualization Center, Center for Bio-Modular Multi-Scale Systems, Louisiana State University, Baton Rouge, LA 70803, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17431169" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cercopithecidae/*genetics ; *DNA Transposable Elements ; Endogenous Retroviruses/genetics ; Evolution, Molecular ; Gene Transfer, Horizontal ; Genome ; Genome, Human ; Humans ; Macaca mulatta/*genetics ; Repetitive Sequences, Nucleic Acid ; Retroelements
    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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