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  • 1
    Publication Date: 2012-05-04
    Description: Annual Review of Earth and Planetary Sciences Volume 40, Page 1-21, May 2012.
    Print ISSN: 0084-6597
    Electronic ISSN: 1545-4495
    Topics: Geosciences , Physics
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  • 2
    Publication Date: 2012-05-04
    Description: Annual Review of Earth and Planetary Sciences Volume 40, Page 45-67, May 2012.
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  • 3
    Publication Date: 2012-05-04
    Description: Annual Review of Earth and Planetary Sciences Volume 40, Page 23-43, May 2012.
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  • 4
    Publication Date: 2012-05-04
    Description: Annual Review of Earth and Planetary Sciences Volume 40, Page 89-111, May 2012.
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  • 5
    Publication Date: 2012-05-04
    Description: Annual Review of Earth and Planetary Sciences Volume 40, Page 327-354, May 2012.
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  • 6
    Publication Date: 2012-05-04
    Description: Annual Review of Earth and Planetary Sciences Volume 40, Page 655-683, May 2012.
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  • 7
    Publication Date: 2012-05-04
    Description: Annual Review of Earth and Planetary Sciences Volume 40, Page 685-711, May 2012.
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  • 8
    Publication Date: 2012-05-04
    Description: Annual Review of Earth and Planetary Sciences Volume 40, Page 625-654, May 2012.
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    Topics: Geosciences , Physics
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  • 9
    Publication Date: 2012-05-04
    Description: Annual Review of Earth and Planetary Sciences Volume 40, Page 521-549, May 2012.
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    Topics: Geosciences , Physics
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  • 10
    Publication Date: 2012-05-04
    Description: Annual Review of Earth and Planetary Sciences Volume 40, Page 301-326, May 2012.
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  • 11
    Publication Date: 2012-05-04
    Description: Annual Review of Earth and Planetary Sciences Volume 40, Page 277-300, May 2012.
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  • 12
    Publication Date: 2012-05-04
    Description: Annual Review of Earth and Planetary Sciences Volume 40, Page 251-275, May 2012.
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  • 13
    Publication Date: 2012-05-04
    Description: Annual Review of Earth and Planetary Sciences Volume 40, Page 113-139, May 2012.
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  • 14
    Publication Date: 2012-05-04
    Description: Annual Review of Earth and Planetary Sciences Volume 40, Page 413-439, May 2012.
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  • 15
    Publication Date: 2012-05-04
    Description: Annual Review of Earth and Planetary Sciences Volume 40, Page 441-465, May 2012.
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  • 16
    Publication Date: 2012-05-04
    Description: Annual Review of Earth and Planetary Sciences Volume 40, Page 467-494, May 2012.
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  • 17
    Publication Date: 2012-05-04
    Description: Annual Review of Earth and Planetary Sciences Volume 40, Page 495-520, May 2012.
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  • 18
    Publication Date: 2012-05-04
    Description: Annual Review of Earth and Planetary Sciences Volume 40, Page 551-568, May 2012.
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  • 19
    Publication Date: 2012-05-04
    Description: Annual Review of Earth and Planetary Sciences Volume 40, Page 383-412, May 2012.
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  • 20
    Publication Date: 2012-05-04
    Description: Annual Review of Earth and Planetary Sciences Volume 40, Page 597-623, May 2012.
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  • 21
    Publication Date: 2012-02-22
    Description: The lyso-phospholipid sphingosine 1-phosphate modulates lymphocyte trafficking, endothelial development and integrity, heart rate, and vascular tone and maturation by activating G protein-coupled sphingosine 1-phosphate receptors. Here, we present the crystal structure of the sphingosine 1-phosphate receptor 1 fused to T4-lysozyme (S1P(1)-T4L) in complex with an antagonist sphingolipid mimic. Extracellular access to the binding pocket is occluded by the amino terminus and extracellular loops of the receptor. Access is gained by ligands entering laterally between helices I and VII within the transmembrane region of the receptor. This structure, along with mutagenesis, agonist structure-activity relationship data, and modeling, provides a detailed view of the molecular recognition and requirement for hydrophobic volume that activates S1P(1), resulting in the modulation of immune and stromal cell responses.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3338336/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3338336/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hanson, Michael A -- Roth, Christopher B -- Jo, Euijung -- Griffith, Mark T -- Scott, Fiona L -- Reinhart, Greg -- Desale, Hans -- Clemons, Bryan -- Cahalan, Stuart M -- Schuerer, Stephan C -- Sanna, M Germana -- Han, Gye Won -- Kuhn, Peter -- Rosen, Hugh -- Stevens, Raymond C -- AI055509/AI/NIAID NIH HHS/ -- AI074564/AI/NIAID NIH HHS/ -- P50 GM073197/GM/NIGMS NIH HHS/ -- P50 GM073197-08/GM/NIGMS NIH HHS/ -- R01 AI055509/AI/NIAID NIH HHS/ -- R01 AI055509-04/AI/NIAID NIH HHS/ -- U01 AI074564/AI/NIAID NIH HHS/ -- U01 AI074564-04/AI/NIAID NIH HHS/ -- U54 GM094618/GM/NIGMS NIH HHS/ -- U54 GM094618-02/GM/NIGMS NIH HHS/ -- U54 MH084512/MH/NIMH NIH HHS/ -- U54 MH084512-04/MH/NIMH NIH HHS/ -- Y1-CO-1020/CO/NCI NIH HHS/ -- Y1-GM-1104/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2012 Feb 17;335(6070):851-5. doi: 10.1126/science.1215904.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Receptos, 10835 Road to the Cure, San Diego, CA 92121, USA. mhanson@receptos.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22344443" target="_blank"〉PubMed〈/a〉
    Keywords: Anilides/chemistry ; Binding Sites ; Crystallography, X-Ray ; Models, Molecular ; Muramidase/chemistry ; Mutagenesis ; Organophosphonates/chemistry ; Protein Conformation ; Receptors, Lysosphingolipid/agonists/antagonists & inhibitors/*chemistry/genetics ; Recombinant Fusion Proteins/chemistry/genetics
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  • 22
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-04-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mervis, Jeffrey -- New York, N.Y. -- Science. 2012 Apr 27;336(6080):401. doi: 10.1126/science.336.6080.401.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22539690" target="_blank"〉PubMed〈/a〉
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  • 23
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-03-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mervis, Jeffrey -- New York, N.Y. -- Science. 2012 Mar 2;335(6072):1031. doi: 10.1126/science.335.6072.1031.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22383819" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
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  • 24
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-11-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Qiu, Jane -- New York, N.Y. -- Science. 2012 Nov 16;338(6109):881. doi: 10.1126/science.338.6109.881.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23161971" target="_blank"〉PubMed〈/a〉
    Keywords: Antarctic Regions ; *Climate Change ; *Ice Cover ; *Islands
    Print ISSN: 0036-8075
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  • 25
    Publication Date: 2012-06-23
    Description: Policies to reduce emissions from deforestation would benefit from clearly derived, spatially explicit, statistically bounded estimates of carbon emissions. Existing efforts derive carbon impacts of land-use change using broad assumptions, unreliable data, or both. We improve on this approach using satellite observations of gross forest cover loss and a map of forest carbon stocks to estimate gross carbon emissions across tropical regions between 2000 and 2005 as 0.81 petagram of carbon per year, with a 90% prediction interval of 0.57 to 1.22 petagrams of carbon per year. This estimate is 25 to 50% of recently published estimates. By systematically matching areas of forest loss with their carbon stocks before clearing, these results serve as a more accurate benchmark for monitoring global progress on reducing emissions from deforestation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Harris, Nancy L -- Brown, Sandra -- Hagen, Stephen C -- Saatchi, Sassan S -- Petrova, Silvia -- Salas, William -- Hansen, Matthew C -- Potapov, Peter V -- Lotsch, Alexander -- New York, N.Y. -- Science. 2012 Jun 22;336(6088):1573-6. doi: 10.1126/science.1217962.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Ecosystem Services Unit, Winrock International, Arlington, VA 22202, USA. nharris@winrock.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22723420" target="_blank"〉PubMed〈/a〉
    Keywords: Africa South of the Sahara ; Asia ; Biomass ; *Carbon ; *Conservation of Natural Resources ; Developing Countries ; *Ecosystem ; Latin America ; Monte Carlo Method ; Remote Sensing Technology ; Soil ; *Trees ; *Tropical Climate
    Print ISSN: 0036-8075
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  • 26
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-02-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mervis, Jeffrey -- New York, N.Y. -- Science. 2012 Feb 17;335(6070):784. doi: 10.1126/science.335.6070.784.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22344418" target="_blank"〉PubMed〈/a〉
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  • 27
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-05-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dernburg, Abby F -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2012 May 11;336(6082):681-2. doi: 10.1126/science.1222647.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA. afdernburg@lbl.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22582252" target="_blank"〉PubMed〈/a〉
    Keywords: *Chromosome Pairing ; Chromosomes, Fungal/*physiology ; *Meiosis ; RNA, Untranslated/*genetics ; Schizosaccharomyces/*genetics
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  • 28
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-05-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉zur Hausen, Harald -- New York, N.Y. -- Science. 2012 May 25;336(6084):978-9. doi: 10.1126/science.336.6084.978.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22628635" target="_blank"〉PubMed〈/a〉
    Keywords: Economic Recession ; Europe ; Greece ; International Cooperation ; *Research ; *Science
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  • 29
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-11-20
    Description: New manufacturing technologies under the banner of rapid prototyping enable the fabrication of structures close in architecture to biological tissue. In their simplest form, these technologies allow the manufacture of scaffolds upon which cells can grow for later implantation into the body. A more exciting prospect is the printing and patterning in three dimensions of all the components that make up a tissue (cells and matrix materials) to generate structures analogous to tissues; this has been termed bioprinting. Such techniques have opened new areas of research in tissue engineering and regenerative medicine.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Derby, Brian -- New York, N.Y. -- Science. 2012 Nov 16;338(6109):921-6. doi: 10.1126/science.1226340.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Materials, University of Manchester, Oxford Road, Manchester M13 9PL, UK. brian.derby@manchester.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23161993" target="_blank"〉PubMed〈/a〉
    Keywords: Bioprinting/*methods ; Cartilage/cytology/physiology/radiation effects ; Humans ; Photochemical Processes ; *Prostheses and Implants ; Regenerative Medicine ; Tissue Engineering/*methods ; *Tissue Scaffolds
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  • 30
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-01-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stone, Richard -- New York, N.Y. -- Science. 2012 Jan 6;335(6064):24. doi: 10.1126/science.335.6064.24.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22223784" target="_blank"〉PubMed〈/a〉
    Keywords: China ; Climate ; *Geologic Sediments/microbiology ; *Oceanography ; Oceans and Seas ; *Research ; Seawater/microbiology
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  • 31
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-05-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hartmann, Aaron C -- Levin, Lisa A -- New York, N.Y. -- Science. 2012 May 11;336(6082):668-9. doi: 10.1126/science.336.6082.668-a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22582242" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Aquatic Organisms ; *Ecosystem ; *Seawater
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  • 32
    Publication Date: 2012-06-02
    Description: Interacting sets of actin assembly factors work together in cells, but the underlying mechanisms have remained obscure. We used triple-color single-molecule fluorescence microscopy to image the tumor suppressor adenomatous polyposis coli (APC) and the formin mDia1 during filament assembly. Complexes consisting of APC, mDia1, and actin monomers initiated actin filament formation, overcoming inhibition by capping protein and profilin. Upon filament polymerization, the complexes separated, with mDia1 moving processively on growing barbed ends while APC remained at the site of nucleation. Thus, the two assembly factors directly interact to initiate filament assembly and then separate but retain independent associations with either end of the growing filament.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3613992/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3613992/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Breitsprecher, Dennis -- Jaiswal, Richa -- Bombardier, Jeffrey P -- Gould, Christopher J -- Gelles, Jeff -- Goode, Bruce L -- GM083137/GM/NIGMS NIH HHS/ -- GM43369/GM/NIGMS NIH HHS/ -- GM81648/GM/NIGMS NIH HHS/ -- R01 GM063691/GM/NIGMS NIH HHS/ -- R01 GM081648/GM/NIGMS NIH HHS/ -- R01 GM083137/GM/NIGMS NIH HHS/ -- R01 GM098143/GM/NIGMS NIH HHS/ -- R37 GM043369/GM/NIGMS NIH HHS/ -- T32 EB009419/EB/NIBIB NIH HHS/ -- T32 GM007596/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2012 Jun 1;336(6085):1164-8. doi: 10.1126/science.1218062.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Brandeis University, Waltham, MA 02454, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22654058" target="_blank"〉PubMed〈/a〉
    Keywords: Actin Cytoskeleton/*metabolism ; Actins/chemistry/*metabolism ; Adaptor Proteins, Signal Transducing/chemistry/*metabolism ; Adenomatous Polyposis Coli Protein/chemistry/*metabolism ; Animals ; Microscopy, Fluorescence ; Peptide Fragments/chemistry/metabolism ; Profilins/metabolism ; Protein Binding ; Protein Interaction Domains and Motifs ; Protein Multimerization ; Rabbits
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  • 33
    Publication Date: 2012-06-16
    Description: Homoatomic triple bonds between main-group elements have been restricted to alkynes, dinitrogen, and a handful of reactive compounds featuring trans-bent heavier elements of groups 13 and 14. Previous attempts to prepare a compound with a boron-boron triple bond that is stable at ambient temperature have been unsuccessful, despite numerous computational studies predicting their viability. We found that reduction of a bis(N-heterocyclic carbene)-stabilized tetrabromodiborane with either two or four equivalents of sodium naphthalenide, a one-electron reducing agent, yields isolable diborene and diboryne compounds. Crystallographic and spectroscopic characterization confirm that the latter is a halide-free linear system containing a boron-boron triple bond.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Braunschweig, Holger -- Dewhurst, Rian D -- Hammond, Kai -- Mies, Jan -- Radacki, Krzysztof -- Vargas, Alfredo -- New York, N.Y. -- Science. 2012 Jun 15;336(6087):1420-2. doi: 10.1126/science.1221138.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut fur Anorganische Chemie, Julius-Maximilians-Universitat Wurzburg, Am Hubland, 97074 Wurzburg, Germany. h.braunschweig@uni-wuerzburg.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22700924" target="_blank"〉PubMed〈/a〉
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-11-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Qiu, Jane -- New York, N.Y. -- Science. 2012 Nov 16;338(6109):879-81. doi: 10.1126/science.338.6109.879.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23161970" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antarctic Regions ; *Climate Change ; Global Warming ; *Ice Cover ; Spheniscidae/*physiology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 35
    Publication Date: 2012-12-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kupferschmidt, Kai -- New York, N.Y. -- Science. 2012 Nov 30;338(6111):1146-7. doi: 10.1126/science.338.6111.1146.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23197512" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Genetically Modified ; Consumer Advocacy/standards/*trends ; Consumer Organizations/standards/*trends ; *European Union ; Food Labeling/*standards ; *Food Safety ; *Food, Genetically Modified ; Guidelines as Topic/standards ; Italy ; Plants, Genetically Modified
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-06-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dever, Thomas E -- New York, N.Y. -- Science. 2012 Jun 29;336(6089):1645-6. doi: 10.1126/science.1224439.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Gene Regulation and Development, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA. tdever@nih.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22745408" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigen Presentation/*genetics ; *Codon, Initiator ; Histocompatibility Antigens Class I/*genetics/*immunology ; Humans ; Protein Biosynthesis/*genetics ; *RNA, Transfer, Leu
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  • 37
    Publication Date: 2012-10-09
    Description: Plants defend themselves against attack by natural enemies, and these defenses vary widely across populations. However, whether communities of natural enemies are a sufficiently potent force to maintain polymorphisms in defensive traits is largely unknown. Here, we exploit the genetic resources of Arabidopsis thaliana, coupled with 39 years of field data on aphid abundance, to (i) demonstrate that geographic patterns in a polymorphic defense locus (GS-ELONG) are strongly correlated with changes in the relative abundance of two specialist aphids; and (ii) demonstrate differential selection by the two aphids on GS-ELONG, using a multigeneration selection experiment. We thereby show a causal link between variation in abundance of the two specialist aphids and the geographic pattern at GS-ELONG, which highlights the potency of natural enemies as selective forces.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zust, Tobias -- Heichinger, Christian -- Grossniklaus, Ueli -- Harrington, Richard -- Kliebenstein, Daniel J -- Turnbull, Lindsay A -- Biotechnology and Biological Sciences Research Council/United Kingdom -- New York, N.Y. -- Science. 2012 Oct 5;338(6103):116-9. doi: 10.1126/science.1226397.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Evolutionary Biology and Environmental Studies and Zurich-Basel Plant Science Center, University of Zurich, Zurich CH-8057, Switzerland. tobias.zuest@cornell.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23042895" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Biological/*genetics ; Animals ; Aphids/*physiology ; Arabidopsis/*genetics ; *Genetic Loci ; Geography ; Herbivory/*physiology ; Polymorphism, Genetic ; *Selection, Genetic ; Species Specificity
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-02-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mervis, Jeffrey -- New York, N.Y. -- Science. 2012 Feb 17;335(6070):783-4. doi: 10.1126/science.335.6070.783.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22344417" target="_blank"〉PubMed〈/a〉
    Keywords: *Budgets ; National Institutes of Health (U.S.)/economics ; *Research Support as Topic/economics ; United States ; United States Government Agencies/economics
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  • 39
    Publication Date: 2012-10-23
    Description: 〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3820285/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3820285/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brennan, Matthew D -- Cheong, Raymond -- Levchenko, Andre -- CA65145/CA/NCI NIH HHS/ -- GM072024/GM/NIGMS NIH HHS/ -- GM084322/GM/NIGMS NIH HHS/ -- R01 GM072024/GM/NIGMS NIH HHS/ -- U54 GM103520/GM/NIGMS NIH HHS/ -- U54 RR020839/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2012 Oct 19;338(6105):334-5. doi: 10.1126/science.1227946.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biomedical Engineering, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23087235" target="_blank"〉PubMed〈/a〉
    Keywords: Cells/drug effects/*metabolism ; *Information Theory ; Ligands ; Metabolic Networks and Pathways ; *Signal Transduction ; *Uncertainty
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  • 40
    Publication Date: 2012-06-23
    Description: In a superconductor, the ratio of the carrier density, n, to its effective mass, m*, is a fundamental property directly reflecting the length scale of the superfluid flow, the London penetration depth, lambda(L). In two-dimensional systems, this ratio n/m* (~1/lambda(L)(2)) determines the effective Fermi temperature, T(F). We report a sharp peak in the x-dependence of lambda(L) at zero temperature in clean samples of BaFe(2)(As(1)(-x)P(x))(2) at the optimum composition x = 0.30, where the superconducting transition temperature T(c) reaches a maximum of 30 kelvin. This structure may arise from quantum fluctuations associated with a quantum critical point. The ratio of T(c)/T(F) at x = 0.30 is enhanced, implying a possible crossover toward the Bose-Einstein condensate limit driven by quantum criticality.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hashimoto, K -- Cho, K -- Shibauchi, T -- Kasahara, S -- Mizukami, Y -- Katsumata, R -- Tsuruhara, Y -- Terashima, T -- Ikeda, H -- Tanatar, M A -- Kitano, H -- Salovich, N -- Giannetta, R W -- Walmsley, P -- Carrington, A -- Prozorov, R -- Matsuda, Y -- New York, N.Y. -- Science. 2012 Jun 22;336(6088):1554-7. doi: 10.1126/science.1219821.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physics, Kyoto University, Kyoto, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22723416" target="_blank"〉PubMed〈/a〉
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-07-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zutic, Igor -- Lee, Jeongsu -- New York, N.Y. -- Science. 2012 Jul 20;337(6092):307-8. doi: 10.1126/science.1225219.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physics, University at Buffalo, The State University at New York, Buffalo, NY 14260, USA. zigor@buffalo.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22822141" target="_blank"〉PubMed〈/a〉
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  • 42
    Publication Date: 2012-01-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mervis, Jeffrey -- New York, N.Y. -- Science. 2012 Jan 20;335(6066):274-5. doi: 10.1126/science.335.6066.274.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22267783" target="_blank"〉PubMed〈/a〉
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  • 43
    Publication Date: 2012-11-03
    Description: Multiple cancer-associated single-nucleotide polymorphisms (SNPs) have been mapped to conserved sequences within a 500-kilobase region upstream of the MYC oncogene on human chromosome 8q24. These SNPs may affect cancer development through altered regulation of MYC expression, but this hypothesis has been difficult to confirm. We generated mice deficient in Myc-335, a putative MYC regulatory element that contains rs6983267, a SNP accounting for more human cancer-related morbidity than any other genetic variant or mutation. In Myc-335 null mice, Myc transcripts were expressed in the intestinal crypts in a pattern similar to that in wild-type mice but at modestly reduced levels. The mutant mice displayed no overt phenotype but were markedly resistant to intestinal tumorigenesis induced by the APCmin mutation. These results establish that a cancer-associated SNP identified in human genome-wide association studies has a functional effect in vivo.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sur, Inderpreet Kaur -- Hallikas, Outi -- Vaharautio, Anna -- Yan, Jian -- Turunen, Mikko -- Enge, Martin -- Taipale, Minna -- Karhu, Auli -- Aaltonen, Lauri A -- Taipale, Jussi -- New York, N.Y. -- Science. 2012 Dec 7;338(6112):1360-3. doi: 10.1126/science.1228606. Epub 2012 Nov 1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Science for Life Center, Department of Biosciences and Nutrition, Karolinska Institutet, Stockholm, Sweden.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23118011" target="_blank"〉PubMed〈/a〉
    Keywords: Adenomatous Polyposis Coli/genetics/pathology ; Animals ; Cell Transformation, Neoplastic/*genetics ; Colon/metabolism/pathology ; Enhancer Elements, Genetic/*genetics ; Humans ; Ileum/metabolism/pathology ; Intestinal Neoplasms/*genetics/pathology ; Mice ; Mice, Mutant Strains ; Polymorphism, Single Nucleotide ; Proto-Oncogene Proteins c-myc/*genetics
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  • 44
    Publication Date: 2012-05-15
    Description: Pairing and recombination of homologous chromosomes are essential for ensuring reductional segregation in meiosis. However, the mechanisms by which chromosomes recognize their homologous partners are poorly understood. Here, we report that the sme2 gene encodes a meiosis-specific noncoding RNA that mediates homologous recognition in the fission yeast Schizosaccharomyces pombe. The sme2 locus shows robust pairing from early in meiotic prophase. The sme2 RNA transcripts accumulate at their respective gene loci and greatly enhance pairing of homologous loci: Deletion of the sme2 sequence eliminates this robust pairing, whereas transposition to other chromosomal sites confers robust pairing at those ectopic sites. Thus, we propose that RNA transcripts retained on the chromosome play an active role in recognition of homologous chromosomes for pairing.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ding, Da-Qiao -- Okamasa, Kasumi -- Yamane, Miho -- Tsutsumi, Chihiro -- Haraguchi, Tokuko -- Yamamoto, Masayuki -- Hiraoka, Yasushi -- New York, N.Y. -- Science. 2012 May 11;336(6082):732-6. doi: 10.1126/science.1219518.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Advanced ICT Research Institute Kobe, National Institute of Information and Communications Technology, Kobe 651-2492, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22582262" target="_blank"〉PubMed〈/a〉
    Keywords: *Chromosome Pairing ; Chromosomes, Fungal/*physiology ; Genes, Fungal ; *Meiosis ; Models, Genetic ; Prophase ; RNA, Fungal/genetics ; RNA, Untranslated/*genetics ; RNA-Binding Proteins/genetics/metabolism ; Recombination, Genetic ; Schizosaccharomyces/*genetics/physiology ; Schizosaccharomyces pombe Proteins/genetics/metabolism ; Telomere/physiology ; Transcription, Genetic ; mRNA Cleavage and Polyadenylation Factors/genetics
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-06-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kurita, Naoyuki -- New York, N.Y. -- Science. 2012 Jun 8;336(6086):1242-3. doi: 10.1126/science.1223527.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, Japan. nkurita@jamstec.go.jp〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22679088" target="_blank"〉PubMed〈/a〉
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  • 46
    Publication Date: 2012-08-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brosi, Berry J -- Biber, Eric G N -- New York, N.Y. -- Science. 2012 Aug 17;337(6096):802-3. doi: 10.1126/science.1220660.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Environmental Studies, Emory University, Atlanta, GA 30322, USA. bbrosi@emory.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22903999" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Databases, Factual ; Endangered Species/*legislation & jurisprudence/*statistics & numerical data ; Population ; Regression Analysis ; Turtles ; United States
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-06-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rath, Johannes -- New York, N.Y. -- Science. 2012 Jun 8;336(6086):1231. doi: 10.1126/science.336.6086.1231-a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22679081" target="_blank"〉PubMed〈/a〉
    Keywords: Biomedical Research/*legislation & jurisprudence ; *Government Regulation ; *Public Policy ; *Research Support as Topic ; *Security Measures
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-05-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Suresh, Subra -- New York, N.Y. -- Science. 2012 May 25;336(6084):959. doi: 10.1126/science.1224580.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22628620" target="_blank"〉PubMed〈/a〉
    Keywords: Access to Information ; *International Cooperation ; Peer Review, Research/*standards ; *Research ; *Science
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-08-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brouns, Stan J J -- New York, N.Y. -- Science. 2012 Aug 17;337(6096):808-9. doi: 10.1126/science.1227253.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Microbiology, Wageningen University, 6703 HB Wageningen, Netherlands. stan.brouns@wur.nl〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22904002" target="_blank"〉PubMed〈/a〉
    Keywords: Bacteriophages/*immunology ; *DNA Breaks, Double-Stranded ; *DNA Cleavage ; Deoxyribonucleases, Type II Site-Specific/*metabolism ; *Inverted Repeat Sequences ; RNA/*metabolism ; Streptococcus pyogenes/*enzymology
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-04-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Helander, Michael G -- New York, N.Y. -- Science. 2012 Apr 20;336(6079):302-3. doi: 10.1126/science.1220829.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Materials Science and Engineering, University of Toronto, Toronto, Ontario M5S 3E4, Canada. michael.helander@utoronto.ca〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22517846" target="_blank"〉PubMed〈/a〉
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-03-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kurzban, Robert -- Barrett, H Clark -- New York, N.Y. -- Science. 2012 Mar 2;335(6072):1056-7. doi: 10.1126/science.1219232.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychology, University of Pennsylvania, Philadelphia, PA 19104, USA. kurzban@psych.upenn.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22383839" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Cultural Evolution ; Female ; Humans ; *Mental Processes ; *Problem Solving ; *Social Behavior
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-01-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Midgley, Guy F -- New York, N.Y. -- Science. 2012 Jan 13;335(6065):174-5. doi: 10.1126/science.1217245.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Climate Change and Bioadaptation, South African National Biodiversity Institute, Rhodes Drive, Cape Town 7735, South Africa. g.midgley@sanbi.org.za〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22246761" target="_blank"〉PubMed〈/a〉
    Keywords: *Biodiversity ; *Climate ; *Ecosystem ; *Plants
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  • 53
    Publication Date: 2012-05-05
    Description: Hirota et al. (Reports, 14 October 2011, p. 232) used spatial data to show that grasslands, savannas, and forests represent opposing stable states. Reanalyzing their data and drawing from temporal studies, we argue that spatial analyses underestimate the bistability of grasslands and savannas due to limitations of substituting space for time. We propose that temporal and spatial data are needed to predict critical transitions between grasslands and savannas.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ratajczak, Zak -- Nippert, Jesse B -- New York, N.Y. -- Science. 2012 May 4;336(6081):541; author reply 541. doi: 10.1126/science.1219346.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Biology, Kansas State University, 116 Ackert Hall, Manhattan, KS 66506, USA. zarata@ksu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22556235" target="_blank"〉PubMed〈/a〉
    Keywords: *Ecosystem ; *Trees ; *Tropical Climate
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-05-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brouwer, Piet W -- New York, N.Y. -- Science. 2012 May 25;336(6084):989-90. doi: 10.1126/science.1223302.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Dahlem Center for Complex Quantum Systems and Institut fur Theoretische Physik, Freie Universitat Berlin, Berlin, Germany. brouwer@zedat.fu-berlin.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22628643" target="_blank"〉PubMed〈/a〉
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-07-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Divakaruni, Ajit S -- Murphy, Anne N -- New York, N.Y. -- Science. 2012 Jul 6;337(6090):41-3. doi: 10.1126/science.1225601.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Pharmacology Department, University of California-San Diego, La Jolla, CA 92093-0636, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22767917" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anion Transport Proteins/*metabolism ; Drosophila Proteins/*metabolism ; Drosophila melanogaster/*metabolism ; Humans ; Mitochondria/*metabolism ; Mitochondrial Membrane Transport Proteins/*metabolism ; Mitochondrial Membranes/*metabolism ; Mitochondrial Proteins/*metabolism ; Pyruvic Acid/*metabolism ; Saccharomyces cerevisiae/*metabolism ; Saccharomyces cerevisiae Proteins/*metabolism
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  • 56
    Publication Date: 2012-09-01
    Description: We present a DNA library preparation method that has allowed us to reconstruct a high-coverage (30x) genome sequence of a Denisovan, an extinct relative of Neandertals. The quality of this genome allows a direct estimation of Denisovan heterozygosity indicating that genetic diversity in these archaic hominins was extremely low. It also allows tentative dating of the specimen on the basis of "missing evolution" in its genome, detailed measurements of Denisovan and Neandertal admixture into present-day human populations, and the generation of a near-complete catalog of genetic changes that swept to high frequency in modern humans since their divergence from Denisovans.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3617501/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3617501/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Meyer, Matthias -- Kircher, Martin -- Gansauge, Marie-Theres -- Li, Heng -- Racimo, Fernando -- Mallick, Swapan -- Schraiber, Joshua G -- Jay, Flora -- Prufer, Kay -- de Filippo, Cesare -- Sudmant, Peter H -- Alkan, Can -- Fu, Qiaomei -- Do, Ron -- Rohland, Nadin -- Tandon, Arti -- Siebauer, Michael -- Green, Richard E -- Bryc, Katarzyna -- Briggs, Adrian W -- Stenzel, Udo -- Dabney, Jesse -- Shendure, Jay -- Kitzman, Jacob -- Hammer, Michael F -- Shunkov, Michael V -- Derevianko, Anatoli P -- Patterson, Nick -- Andres, Aida M -- Eichler, Evan E -- Slatkin, Montgomery -- Reich, David -- Kelso, Janet -- Paabo, Svante -- GM100233/GM/NIGMS NIH HHS/ -- R01 GM040282/GM/NIGMS NIH HHS/ -- R01 GM100233/GM/NIGMS NIH HHS/ -- R01-GM40282/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2012 Oct 12;338(6104):222-6. doi: 10.1126/science.1224344. Epub 2012 Aug 30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Evolutionary Genetics, Max Planck Institute for Evolutionary Anthropology, D-04103 Leipzig, Germany. mmeyer@eva.mpg.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22936568" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Animals ; Base Sequence ; Fossils ; Gene Flow ; Gene Library ; *Genetic Variation ; Genome, Human/*genetics ; *Heterozygote ; Humans ; Molecular Sequence Data ; Neanderthals/*genetics ; Sequence Analysis, DNA
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  • 57
    Publication Date: 2012-04-21
    Description: Prion conversion from a soluble protein to an aggregated state may be involved in the cellular adaptation of yeast to the environment. However, it remains unclear whether and how cells actively use prion conversion to acquire a fitness advantage in response to environmental stress. We identified Mod5, a yeast transfer RNA isopentenyltransferase lacking glutamine/asparagine-rich domains, as a yeast prion protein and found that its prion conversion in yeast regulated the sterol biosynthetic pathway for acquired cellular resistance against antifungal agents. Furthermore, selective pressure by antifungal drugs on yeast facilitated the de novo appearance of Mod5 prion states for cell survival. Thus, phenotypic changes caused by active prion conversion under environmental selection may contribute to cellular adaptation in living organisms.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Suzuki, Genjiro -- Shimazu, Naoyuki -- Tanaka, Motomasa -- New York, N.Y. -- Science. 2012 Apr 20;336(6079):355-9. doi: 10.1126/science.1219491.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory for Protein Conformation Diseases, RIKEN Brain Science Institute, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22517861" target="_blank"〉PubMed〈/a〉
    Keywords: Alkyl and Aryl Transferases/*chemistry/genetics/*metabolism ; Antifungal Agents/*pharmacology ; Biosynthetic Pathways ; Crosses, Genetic ; Drug Resistance, Fungal ; Ergosterol/biosynthesis ; Fluorouracil/pharmacology ; Microbial Viability ; Prions/*chemistry/genetics/metabolism ; Protein Conformation ; Protein Structure, Tertiary ; RNA, Fungal/metabolism ; RNA, Transfer/metabolism ; Recombinant Fusion Proteins/chemistry/metabolism ; Saccharomyces cerevisiae/chemistry/*drug effects/genetics/*physiology ; Saccharomyces cerevisiae Proteins/*chemistry/genetics/*metabolism ; Selection, Genetic ; Solubility ; *Stress, Physiological
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-09-01
    Description: 〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3762587/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3762587/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kushner, Jake A -- 1R01AG040110/AG/NIA NIH HHS/ -- 1R01DK064101/DK/NIDDK NIH HHS/ -- P30DK079638/DK/NIDDK NIH HHS/ -- R01 AG040110/AG/NIA NIH HHS/ -- R01 DK081469/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 2012 Aug 31;337(6098):1051-2. doi: 10.1126/science.1227506.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉McNair Medical Institute, Pediatric Diabetes and Endocrinology, Baylor College of Medicine, Houston, TX 77030, USA. kushner@bcm.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22936766" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Epithelial Cells/*physiology ; Epithelium/*physiology ; Esophagus/*cytology/*physiology ; *Regeneration ; Stem Cells/*physiology
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  • 59
    Publication Date: 2012-03-24
    Description: Renewable and cheap materials in electrodes could meet the need for low-cost, intermittent electrical energy storage in a renewable energy system if sufficient charge density is obtained. Brown liquor, the waste product from paper processing, contains lignin derivatives. Polymer cathodes can be prepared by electrochemical oxidation of pyrrole to polypyrrole in solutions of lignin derivatives. The quinone group in lignin is used for electron and proton storage and exchange during redox cycling, thus combining charge storage in lignin and polypyrrole in an interpenetrating polypyrrole/lignin composite.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Milczarek, Grzegorz -- Inganas, Olle -- New York, N.Y. -- Science. 2012 Mar 23;335(6075):1468-71. doi: 10.1126/science.1215159.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Chemistry and Technical Electrochemistry, Poznan University of Technology, Poznan, Poland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22442478" target="_blank"〉PubMed〈/a〉
    Keywords: Electric Capacitance ; Electrochemical Techniques ; *Electrodes ; Hydrogen-Ion Concentration ; Ion Exchange ; Lignin/*analogs & derivatives/chemistry ; Oxidation-Reduction ; Polymers/*chemistry ; Pyrroles/*chemistry ; Renewable Energy
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  • 60
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-08-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ravishankara, A R -- New York, N.Y. -- Science. 2012 Aug 17;337(6096):809-10. doi: 10.1126/science.1227004.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Chemical Sciences Division, Earth System Research Laboratory, National Oceanic and Atmospheric Administration, Boulder, CO 80305, USA. a.r.ravishankara@noaa.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22904003" target="_blank"〉PubMed〈/a〉
    Keywords: Atmosphere/*chemistry ; *Convection ; Ozone/*chemistry ; *Seasons ; *Steam ; *Ultraviolet Rays
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  • 61
    Publication Date: 2012-11-28
    Description: Greater understanding of the mechanisms contributing to chemical and enzymatic solubilization of plant cell walls is critical for enabling cost-effective industrial conversion of cellulosic biomass to biofuels. Here, we report the use of correlative imaging in real time to assess the impact of pretreatment, as well as the resulting nanometer-scale changes in cell wall structure, upon subsequent digestion by two commercially relevant cellulase systems. We demonstrate that the small, noncomplexed fungal cellulases deconstruct cell walls using mechanisms that differ considerably from those of the larger, multienzyme complexes (cellulosomes). Furthermore, high-resolution measurement of the microfibrillar architecture of cell walls suggests that digestion is primarily facilitated by enabling enzyme access to the hydrophobic cellulose face. The data support the conclusion that ideal pretreatments should maximize lignin removal and minimize polysaccharide modification, thereby retaining the essentially native microfibrillar structure.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ding, Shi-You -- Liu, Yu-San -- Zeng, Yining -- Himmel, Michael E -- Baker, John O -- Bayer, Edward A -- New York, N.Y. -- Science. 2012 Nov 23;338(6110):1055-60. doi: 10.1126/science.1227491.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Biosciences Center, National Renewable Energy Laboratory, Golden, CO 80401, USA. shi.you.ding@nrel.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23180856" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Wall/*chemistry ; Cellulases/*chemistry ; Cellulose/chemistry ; Clostridium thermocellum/*enzymology ; Lignin/chemistry ; Microscopy, Confocal/methods ; Molecular Imaging ; Nanoparticles/*chemistry ; Plant Cells/*chemistry ; Polysaccharides/chemistry ; Spectrum Analysis, Raman/methods ; Trichoderma/*enzymology
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  • 62
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-06-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hellstrom, John -- New York, N.Y. -- Science. 2012 Jun 15;336(6087):1387-8. doi: 10.1126/science.1224185.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Earth Sciences, The University of Melbourne, VIC 3010, Australia. j.hellstrom@unimelb.edu.au〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22700907" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Caves ; Engraving and Engravings/*history ; Humans ; Paintings/*history ; *Radiometric Dating
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  • 63
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-05-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brown, Gordon D -- Denning, David W -- Levitz, Stuart M -- 097377/Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2012 May 11;336(6082):647. doi: 10.1126/science.1222236.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22582229" target="_blank"〉PubMed〈/a〉
    Keywords: Antifungal Agents/therapeutic use ; Biomedical Research/economics ; Financing, Government ; Fungal Vaccines ; Humans ; *Mycoses/diagnosis/drug therapy/epidemiology/prevention & control ; Research Support as Topic
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  • 64
    Publication Date: 2012-11-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mervis, Jeffrey -- Malakoff, David -- Bhattacharjee, Yudhijit -- Kaiser, Jocelyn -- New York, N.Y. -- Science. 2012 Oct 26;338(6106):456-61. doi: 10.1126/science.338.6106.456.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23112305" target="_blank"〉PubMed〈/a〉
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  • 65
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-11-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Strano, Michael S -- New York, N.Y. -- Science. 2012 Nov 16;338(6109):890-1. doi: 10.1126/science.1231024.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. strano@mit.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23161982" target="_blank"〉PubMed〈/a〉
    Keywords: Cholesterol/*chemistry ; DNA/*chemistry ; Ion Channels/*chemistry ; *Lipid Bilayers ; *Nanostructures
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-02-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zwier, Timothy S -- New York, N.Y. -- Science. 2012 Feb 10;335(6069):668-9. doi: 10.1126/science.1218285.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, Purdue University, West Lafayette, IN 47907-2084, USA. zwier@purdue.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22323809" target="_blank"〉PubMed〈/a〉
    Keywords: Biphenyl Compounds/*chemistry ; Oligopeptides/*chemistry ; Spectrum Analysis/*methods
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-08-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dickey, B F -- R01 HL097000/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2012 Aug 24;337(6097):924-5. doi: 10.1126/science.1227091.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pulmonary Medicine, University of Texas M. D. Anderson Cancer Center, Houston, TX 77030, USA. bdickey@mdanderson.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22923570" target="_blank"〉PubMed〈/a〉
    Keywords: Cilia/*physiology ; Glycosaminoglycans/*physiology ; Humans ; Lung/*physiology ; *Models, Biological ; Mucins/*physiology ; *Mucociliary Clearance ; Mucus/*physiology ; Respiratory Mucosa/*physiology
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  • 68
    Publication Date: 2012-02-04
    Description: An obstacle to the use of graphene as an alternative to silicon electronics has been the absence of an energy gap between its conduction and valence bands, which makes it difficult to achieve low power dissipation in the OFF state. We report a bipolar field-effect transistor that exploits the low density of states in graphene and its one-atomic-layer thickness. Our prototype devices are graphene heterostructures with atomically thin boron nitride or molybdenum disulfide acting as a vertical transport barrier. They exhibit room-temperature switching ratios of approximately 50 and approximately 10,000, respectively. Such devices have potential for high-frequency operation and large-scale integration.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Britnell, L -- Gorbachev, R V -- Jalil, R -- Belle, B D -- Schedin, F -- Mishchenko, A -- Georgiou, T -- Katsnelson, M I -- Eaves, L -- Morozov, S V -- Peres, N M R -- Leist, J -- Geim, A K -- Novoselov, K S -- Ponomarenko, L A -- New York, N.Y. -- Science. 2012 Feb 24;335(6071):947-50. doi: 10.1126/science.1218461. Epub 2012 Feb 2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Physics and Astronomy, University of Manchester, Manchester M13 9PL, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22300848" target="_blank"〉PubMed〈/a〉
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-02-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zwerger, Wilhelm -- New York, N.Y. -- Science. 2012 Feb 3;335(6068):549-50. doi: 10.1126/science.1218074.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physics, Technical University Munich, Garching, Germany. zwerger@ph.tum.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22301312" target="_blank"〉PubMed〈/a〉
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-11-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Haward, Marcus -- Jabour, Julia -- Press, A J -- New York, N.Y. -- Science. 2012 Nov 2;338(6107):603. doi: 10.1126/science.338.6107.603.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23118165" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Conservation of Natural Resources ; *Ecosystem ; Humans
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  • 71
    Publication Date: 2012-03-17
    Description: Models for the growth of continental crust rely on knowing the balance between the generation of new crust and the reworking of old crust throughout Earth's history. The oxygen isotopic composition of zircons, for which uranium-lead and hafnium isotopic data provide age constraints, is a key archive of crustal reworking. We identified systematic variations in hafnium and oxygen isotopes in zircons of different ages that reveal the relative proportions of reworked crust and of new crust through time. Growth of continental crust appears to have been a continuous process, albeit at variable rates. A marked decrease in the rate of crustal growth at ~3 billion years ago may be linked to the onset of subduction-driven plate tectonics.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dhuime, Bruno -- Hawkesworth, Chris J -- Cawood, Peter A -- Storey, Craig D -- New York, N.Y. -- Science. 2012 Mar 16;335(6074):1334-6. doi: 10.1126/science.1216066.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Earth Sciences, University of St. Andrews, St. Andrews, UK. b.dhuime@bristol.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22422979" target="_blank"〉PubMed〈/a〉
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-05-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Strain, Daniel -- New York, N.Y. -- Science. 2012 May 11;336(6082):664-5. doi: 10.1126/science.336.6082.664.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22582239" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Ecosystem ; *Introduced Species ; *Lakes ; *Seawater ; *Ships ; United States
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-11-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zwane, Alix Peterson -- New York, N.Y. -- Science. 2012 Nov 2;338(6107):617-8. doi: 10.1126/science.1230292.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Bill & Melinda Gates Foundation, Seattle, WA 98109, USA. alix.zwane@gatesfoundation.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23118174" target="_blank"〉PubMed〈/a〉
    Keywords: *Attention ; *Decision Making ; Female ; Humans ; Male ; Poverty/*psychology ; *Socioeconomic Factors
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-12-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brenner, Sydney -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2012 Dec 14;338(6113):1427-8. doi: 10.1126/science.1232919.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Janelia Farm Research Campus, Howard Hughes Medical Institute, Ashburn, VA 20147, USA. sydney.brenner@hotmail.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23239722" target="_blank"〉PubMed〈/a〉
    Keywords: Biological Science Disciplines/*history/trends ; DNA/chemistry/*history ; History, 15th Century ; History, 16th Century ; History, 17th Century ; History, 18th Century ; History, 19th Century ; History, 20th Century ; History, 21st Century ; History, Ancient ; History, Medieval
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 75
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-02-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Quintana-Murci, Lluis -- New York, N.Y. -- Science. 2012 Feb 17;335(6070):806-7. doi: 10.1126/science.1219299.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut Pasteur, Unit of Human Evolutionary Genetics, CNRS URA3012, Paris, France. quintana@pasteur.fr〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22344433" target="_blank"〉PubMed〈/a〉
    Keywords: *Genetic Variation ; *Genome, Human ; Humans ; Proteins/*genetics
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  • 76
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-08-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kupferschmidt, Kai -- New York, N.Y. -- Science. 2012 Aug 10;337(6095):636-8. doi: 10.1126/science.337.6095.636.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22879478" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biodiversity ; Body Temperature ; Crops, Agricultural/microbiology ; Food Microbiology ; *Fungi/classification/pathogenicity/physiology ; Fungicides, Industrial ; Host-Pathogen Interactions ; Humans ; Mycoses/epidemiology/*microbiology/transmission/veterinary ; Plant Diseases/microbiology ; Reproduction ; Reproduction, Asexual
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  • 77
    Publication Date: 2012-01-17
    Description: Slimak et al. (Reports, 13 May 2011, p. 841) reanalyzed the lithic assemblage from the northern site of Byzovaya (Russia) and concluded that it was Mousterian and produced by Neandertals. The previous interpretation of this assemblage as falling within Early Upper Paleolithic variability remains the most parsimonious explanation; pending additional fossil discoveries, there is no evidence supporting the occurrence of Neandertals at these high latitudes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zwyns, Nicolas -- Roebroeks, Wil -- McPherron, Shannon P -- Jagich, Adam -- Hublin, Jean-Jacques -- New York, N.Y. -- Science. 2012 Jan 13;335(6065):167; author reply 167. doi: 10.1126/science.1209908.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Deutscher Platz, 04103, Leipzig, Germany. nicolas_zwyns@eva.mpg.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22246757" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Archaeology ; *Hominidae ; Humans
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  • 78
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-06-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brito, Lidia -- New York, N.Y. -- Science. 2012 Jun 15;336(6087):1396. doi: 10.1126/science.1224531.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Science Policy and Capacity-Building, United Nations Educational, Scientific and Cultural Organization, 75352 Paris, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22700913" target="_blank"〉PubMed〈/a〉
    Keywords: *Conservation of Natural Resources ; Developing Countries ; *Environment ; Goals ; United Nations
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  • 79
    Publication Date: 2012-11-01
    Description: Johnson and colleagues (Reports, 18 May 2012, p. 904) claim that conspecific negative density dependence is a pervasive mechanism driving forest diversity, especially for rare tree species. We show that their results are due to a statistical bias in their analysis caused by the exclusion of joint absences.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dickie, Ian A -- Hurst, Jennifer M -- Bellingham, Peter J -- New York, N.Y. -- Science. 2012 Oct 26;338(6106):469; author reply 469. doi: 10.1126/science.1225520.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Landcare Research, Lincoln, 7640 New Zealand. dickiei@landcareresearch.co.nz〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23112313" target="_blank"〉PubMed〈/a〉
    Keywords: *Biodiversity ; *Ecosystem ; *Trees
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  • 80
    Publication Date: 2012-11-10
    Description: Mitochondria must grow with the growing cell to ensure proper cellular physiology and inheritance upon division. We measured the physical size of mitochondrial networks in budding yeast and found that mitochondrial network size increased with increasing cell size and that this scaling relation occurred primarily in the bud. The mitochondria-to-cell size ratio continually decreased in aging mothers over successive generations. However, regardless of the mother's age or mitochondrial content, all buds attained the same average ratio. Thus, yeast populations achieve a stable scaling relation between mitochondrial content and cell size despite asymmetry in inheritance.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3602416/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3602416/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rafelski, Susanne M -- Viana, Matheus P -- Zhang, Yi -- Chan, Yee-Hung M -- Thorn, Kurt S -- Yam, Phoebe -- Fung, Jennifer C -- Li, Hao -- Costa, Luciano da F -- Marshall, Wallace F -- 5R01GM097213-02/GM/NIGMS NIH HHS/ -- P50GM081879/GM/NIGMS NIH HHS/ -- R01 GM097017/GM/NIGMS NIH HHS/ -- R01GM026259/GM/NIGMS NIH HHS/ -- R01GM070808/GM/NIGMS NIH HHS/ -- R01GM097017/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2012 Nov 9;338(6108):822-4. doi: 10.1126/science.1225720.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Biophysics, University of California-San Francisco (UCSF), San Francisco, CA, USA. susanner@uci.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23139336" target="_blank"〉PubMed〈/a〉
    Keywords: G1 Phase ; Microscopy, Confocal ; Mitochondria/*metabolism/*ultrastructure ; *Mitochondrial Size ; Saccharomyces cerevisiae/cytology/*growth & development/*ultrastructure ; Saccharomyces cerevisiae Proteins/genetics/metabolism ; rab GTP-Binding Proteins/genetics/metabolism
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  • 81
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-03-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Strittmatter, Warren J -- New York, N.Y. -- Science. 2012 Mar 23;335(6075):1447-8. doi: 10.1126/science.1220725.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology, Duke University Medical Center, Durham, NC 27710, USA. warren@neuro.duke.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22442467" target="_blank"〉PubMed〈/a〉
    Keywords: Alzheimer Disease/*drug therapy/*metabolism ; Amyloid beta-Peptides/*metabolism ; Animals ; Apolipoproteins E/*metabolism ; Brain/*metabolism ; Male ; Tetrahydronaphthalenes/*pharmacology/*therapeutic use
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  • 82
    Publication Date: 2012-06-16
    Description: Aboveground consumers are believed to affect ecosystem functioning by regulating the quantity and quality of plant litter entering the soil. We uncovered a pathway whereby terrestrial predators regulate ecosystem processes via indirect control over soil community function. Grasshopper herbivores stressed by spider predators have a higher body carbon-to-nitrogen ratio than do grasshoppers raised without spiders. This change in elemental content does not slow grasshopper decomposition but perturbs belowground community function, decelerating the subsequent decomposition of plant litter. This legacy effect of predation on soil community function appears to be regulated by the amount of herbivore protein entering the soil.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hawlena, Dror -- Strickland, Michael S -- Bradford, Mark A -- Schmitz, Oswald J -- New York, N.Y. -- Science. 2012 Jun 15;336(6087):1434-8. doi: 10.1126/science.1220097.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Forestry and Environmental Studies, Yale University, 370 Prospect Street, New Haven, CT 06511, USA. dror.hawlena@mail.huji.ac.il〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22700928" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacteria/metabolism ; Biomass ; Carbon/analysis/metabolism ; Ecosystem ; Energy Metabolism ; Fear ; *Food Chain ; Grasshoppers/chemistry/*physiology ; Herbivory/physiology ; Insect Proteins/analysis/metabolism ; Nitrogen/analysis/metabolism ; *Plants ; *Predatory Behavior ; Soil/chemistry ; *Soil Microbiology ; Spiders/*physiology ; *Stress, Physiological
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  • 83
    Publication Date: 2012-06-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kupferschmidt, Kai -- New York, N.Y. -- Science. 2012 Jun 22;336(6088):1493. doi: 10.1126/science.336.6088.1493.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22723386" target="_blank"〉PubMed〈/a〉
    Keywords: Cholera/*epidemiology/*microbiology ; *Epidemics ; Feces/microbiology ; Haiti/epidemiology ; Humans ; Nepal/epidemiology ; Serotyping ; United Nations ; Vibrio cholerae/classification/*isolation & purification ; Vibrio cholerae O1/classification/isolation & purification ; Water Microbiology
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  • 84
    Publication Date: 2012-03-24
    Description: Phenotypic variability in genetic disease is usually attributed to genetic background variation or environmental influence. Here, we show that deletion of a single gene, Trim28 (Kap1 or Tif1beta), from the maternal germ line alone, on an otherwise identical genetic background, results in severe phenotypic and epigenetic variability that leads to embryonic lethality. We identify early and minute epigenetic variations in blastomeres of the preimplantation embryo of these animals, suggesting that the embryonic lethality may result from the misregulation of genomic imprinting in mice lacking maternal Trim28. Our results reveal the long-range effects of a maternal gene deletion on epigenetic memory and illustrate the delicate equilibrium of maternal and zygotic factors during nuclear reprogramming.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Messerschmidt, Daniel M -- de Vries, Wilhelmine -- Ito, Mitsuteru -- Solter, Davor -- Ferguson-Smith, Anne -- Knowles, Barbara B -- 079249/Wellcome Trust/United Kingdom -- 095606/Wellcome Trust/United Kingdom -- MR/J001597/1/Medical Research Council/United Kingdom -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2012 Mar 23;335(6075):1499-502. doi: 10.1126/science.1216154.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Mammalian Development Group, Institute of Medical Biology, Singapore.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22442485" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blastocyst/physiology ; DNA Methylation ; Down-Regulation ; *Embryo Loss ; Embryo, Mammalian/*physiology ; Embryonic Development ; *Epigenesis, Genetic ; Female ; Gene Expression Regulation, Developmental ; *Genomic Imprinting ; Insulin-Like Growth Factor II/genetics/metabolism ; Male ; Mice ; Mice, Inbred C57BL ; Nuclear Proteins/*genetics/*physiology ; Oligonucleotide Array Sequence Analysis ; Oocytes/*physiology ; Phenotype ; RNA, Long Noncoding ; RNA, Untranslated/genetics/metabolism ; Repressor Proteins/*genetics/*physiology
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  • 85
    Publication Date: 2012-01-10
    Description: Complex worker caste systems have contributed to the evolutionary success of advanced ant societies; however, little is known about the developmental processes underlying their origin and evolution. We combined hormonal manipulation, gene expression, and phylogenetic analyses with field observations to understand how novel worker subcastes evolve. We uncovered an ancestral developmental potential to produce a "supersoldier" subcaste that has been actualized at least two times independently in the hyperdiverse ant genus Pheidole. This potential has been retained and can be environmentally induced throughout the genus. Therefore, the retention and induction of this potential have facilitated the parallel evolution of supersoldiers through a process known as genetic accommodation. The recurrent induction of ancestral developmental potential may facilitate the adaptive and parallel evolution of phenotypes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rajakumar, Rajendhran -- San Mauro, Diego -- Dijkstra, Michiel B -- Huang, Ming H -- Wheeler, Diana E -- Hiou-Tim, Francois -- Khila, Abderrahman -- Cournoyea, Michael -- Abouheif, Ehab -- New York, N.Y. -- Science. 2012 Jan 6;335(6064):79-82. doi: 10.1126/science.1211451.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, McGill University, 1205 Avenue Dr. Penfield, Montreal, Quebec, Canada, H3A 1B1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22223805" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Ants/*genetics/growth & development/physiology ; *Biological Evolution ; Environment ; Female ; Genes, Insect ; Larva/growth & development ; Male ; Methoprene/pharmacology ; Molecular Sequence Data ; Phenotype ; Phylogeny ; Selection, Genetic ; Social Behavior ; Wings, Animal/growth & development
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  • 86
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-02-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stumpf, Michael P H -- Porter, Mason A -- BB/F005210/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- New York, N.Y. -- Science. 2012 Feb 10;335(6069):665-6. doi: 10.1126/science.1216142.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for Integrative Systems Biology and Bioinformatics, Imperial College London, London SW7 2AZ, UK. m.stumpf@imperial.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22323807" target="_blank"〉PubMed〈/a〉
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  • 87
    Publication Date: 2012-09-29
    Description: Approximately 10% of active galactic nuclei exhibit relativistic jets, which are powered by the accretion of matter onto supermassive black holes. Although the measured width profiles of such jets on large scales agree with theories of magnetic collimation, the predicted structure on accretion disk scales at the jet launch point has not been detected. We report radio interferometry observations, at a wavelength of 1.3 millimeters, of the elliptical galaxy M87 that spatially resolve the base of the jet in this source. The derived size of 5.5 +/- 0.4 Schwarzschild radii is significantly smaller than the innermost edge of a retrograde accretion disk, suggesting that the M87 jet is powered by an accretion disk in a prograde orbit around a spinning black hole.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Doeleman, Sheperd S -- Fish, Vincent L -- Schenck, David E -- Beaudoin, Christopher -- Blundell, Ray -- Bower, Geoffrey C -- Broderick, Avery E -- Chamberlin, Richard -- Freund, Robert -- Friberg, Per -- Gurwell, Mark A -- Ho, Paul T P -- Honma, Mareki -- Inoue, Makoto -- Krichbaum, Thomas P -- Lamb, James -- Loeb, Abraham -- Lonsdale, Colin -- Marrone, Daniel P -- Moran, James M -- Oyama, Tomoaki -- Plambeck, Richard -- Primiani, Rurik A -- Rogers, Alan E E -- Smythe, Daniel L -- SooHoo, Jason -- Strittmatter, Peter -- Tilanus, Remo P J -- Titus, Michael -- Weintroub, Jonathan -- Wright, Melvyn -- Young, Ken H -- Ziurys, Lucy M -- New York, N.Y. -- Science. 2012 Oct 19;338(6105):355-8. doi: 10.1126/science.1224768. Epub 2012 Sep 27.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉MIT Haystack Observatory, Off Route 40, Westford, MA 01886, USA. sdoeleman@haystack.mit.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23019611" target="_blank"〉PubMed〈/a〉
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  • 88
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-11-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Metaxas, Panagiotis T -- Mustafaraj, Eni -- New York, N.Y. -- Science. 2012 Oct 26;338(6106):472-3. doi: 10.1126/science.1230456.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Computer Science, Wellesley College, 106 Central Street, Wellesley, MA 02481, USA. pmetaxas@wellesley.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23112315" target="_blank"〉PubMed〈/a〉
    Keywords: *Decision Making ; *Politics ; *Social Media ; *Social Perception ; United States
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  • 89
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-07-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rangel, Thiago F -- New York, N.Y. -- Science. 2012 Jul 13;337(6091):162-3. doi: 10.1126/science.1224819.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Ecology, Federal University of Goias, CxP. 131, Goiania, Goias, Brazil 74970-001. thiagorangel@icb.ufg.br〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22798589" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Conservation of Natural Resources ; *Ecosystem ; *Extinction, Biological ; *Trees ; *Vertebrates
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  • 90
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-01-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Meselson, Matthew -- New York, N.Y. -- Science. 2012 Jan 13;335(6065):181. doi: 10.1126/science.1218031.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular and Cellular Biology, Harvard University, Cambridge, MA 02138, USA. msm@wjh.harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22246766" target="_blank"〉PubMed〈/a〉
    Keywords: Chemistry/history ; DNA/chemistry ; History, 20th Century ; History, 21st Century ; Internationality ; Molecular Biology/history ; Nucleic Acid Conformation ; Nucleic Acid Renaturation ; United States
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  • 91
    Publication Date: 2012-03-24
    Description: Development of fertilization-competent oocytes depends on integrated processes controlling meiosis, cytoplasmic development, and maintenance of genomic integrity. We show that meiosis arrest female 1 (MARF1) is required for these processes in mammalian oocytes. Mutations of Marf1 cause female infertility characterized by up-regulation of a cohort of transcripts, increased retrotransposon expression, defective cytoplasmic maturation, and meiotic arrest. Up-regulation of protein phosphatase 2 catalytic subunit (PPP2CB) is key to the meiotic arrest phenotype. Moreover, Iap and Line1 retrotransposon messenger RNAs are also up-regulated, and, concomitantly, DNA double-strand breaks are elevated in mutant oocytes. Therefore MARF1, by suppressing levels of specific transcripts, is an essential regulator of important oogenic processes leading to female fertility and the development of healthy offspring.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3612990/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3612990/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Su, You-Qiang -- Sugiura, Koji -- Sun, Fengyun -- Pendola, Janice K -- Cox, Gregory A -- Handel, Mary Ann -- Schimenti, John C -- Eppig, John J -- CA34196/CA/NCI NIH HHS/ -- HD42137/HD/NICHD NIH HHS/ -- P01 HD042137/HD/NICHD NIH HHS/ -- P30 CA034196/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2012 Mar 23;335(6075):1496-9. doi: 10.1126/science.1214680.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Jackson Laboratory, Bar Harbor, ME 04609, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22442484" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Cell Cycle Proteins/chemistry/genetics/*metabolism ; DNA Breaks, Double-Stranded ; Embryonic Development ; Female ; *Fertility ; Meiosis ; Mice ; Molecular Sequence Data ; Mutation ; Oocytes/*physiology ; *Oogenesis ; Phenotype ; Protein Phosphatase 2/genetics/metabolism ; Protein Structure, Tertiary ; RNA, Messenger/genetics/metabolism ; Retroelements ; Transcription, Genetic ; Transcriptome ; Up-Regulation
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 92
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-11-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Diehl, Michael R -- New York, N.Y. -- Science. 2012 Nov 2;338(6107):626-7. doi: 10.1126/science.1230818.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, Rice University, Houston, TX 77030, USA. diehl@rice.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23118181" target="_blank"〉PubMed〈/a〉
    Keywords: Cytoplasmic Dyneins/*metabolism ; DNA/*chemistry/*metabolism ; Kinesin/*metabolism ; Microtubules/*metabolism ; Molecular Motor Proteins/*metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 93
    Publication Date: 2012-01-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rao, C N R -- New York, N.Y. -- Science. 2012 Jan 13;335(6065):157. doi: 10.1126/science.335.6065.157.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22246746" target="_blank"〉PubMed〈/a〉
    Keywords: India ; *Research Personnel ; *Science/manpower
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 94
    Publication Date: 2012-09-22
    Description: Identifying causal networks is important for effective policy and management recommendations on climate, epidemiology, financial regulation, and much else. We introduce a method, based on nonlinear state space reconstruction, that can distinguish causality from correlation. It extends to nonseparable weakly connected dynamic systems (cases not covered by the current Granger causality paradigm). The approach is illustrated both by simple models (where, in contrast to the real world, we know the underlying equations/relations and so can check the validity of our method) and by application to real ecological systems, including the controversial sardine-anchovy-temperature problem.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sugihara, George -- May, Robert -- Ye, Hao -- Hsieh, Chih-hao -- Deyle, Ethan -- Fogarty, Michael -- Munch, Stephan -- New York, N.Y. -- Science. 2012 Oct 26;338(6106):496-500. doi: 10.1126/science.1227079. Epub 2012 Sep 20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Scripps Institution of Oceanography, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA. gsugihara@ucsd.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22997134" target="_blank"〉PubMed〈/a〉
    Keywords: *Causality ; Ciliophora ; *Ecosystem ; *Models, Statistical ; Nonlinear Dynamics ; Paramecium
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  • 95
    Publication Date: 2012-10-23
    Description: Radiocarbon ((14)C) provides a way to date material that contains carbon with an age up to ~50,000 years and is also an important tracer of the global carbon cycle. However, the lack of a comprehensive record reflecting atmospheric (14)C prior to 12.5 thousand years before the present (kyr B.P.) has limited the application of radiocarbon dating of samples from the Last Glacial period. Here, we report (14)C results from Lake Suigetsu, Japan (35 degrees 35'N, 135 degrees 53'E), which provide a comprehensive record of terrestrial radiocarbon to the present limit of the (14)C method. The time scale we present in this work allows direct comparison of Lake Suigetsu paleoclimatic data with other terrestrial climatic records and gives information on the connection between global atmospheric and regional marine radiocarbon levels.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bronk Ramsey, Christopher -- Staff, Richard A -- Bryant, Charlotte L -- Brock, Fiona -- Kitagawa, Hiroyuki -- van der Plicht, Johannes -- Schlolaut, Gordon -- Marshall, Michael H -- Brauer, Achim -- Lamb, Henry F -- Payne, Rebecca L -- Tarasov, Pavel E -- Haraguchi, Tsuyoshi -- Gotanda, Katsuya -- Yonenobu, Hitoshi -- Yokoyama, Yusuke -- Tada, Ryuji -- Nakagawa, Takeshi -- New York, N.Y. -- Science. 2012 Oct 19;338(6105):370-4. doi: 10.1126/science.1226660.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉University of Oxford, Oxford, UK. christopher.ramsey@rlaha.ox.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23087245" target="_blank"〉PubMed〈/a〉
    Keywords: Atmosphere/*chemistry ; Calibration ; Carbon Radioisotopes/analysis ; Fossils ; Geologic Sediments/*chemistry ; Lakes/*chemistry ; Radiometric Dating/*standards ; Trees/anatomy & histology/growth & development
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 96
    Publication Date: 2012-09-22
    Description: A variety of transition metal-nitrido complexes (metallonitrenes) have been isolated and studied in the context of modeling intermediates in biological nitrogen fixation by the nitrogenase enzymes and the industrial Haber-Bosch hydrogenation of nitrogen gas into ammonia. In contrast, nonmetallic nitrenes have so far only been spectroscopically observed at low temperatures, despite their intermediacy in a range of organic reactions. Here, we report the synthesis of a bis(imidazolidin-2-iminato)phosphinonitrene, which is stable at room temperature in solution and can even be isolated in the solid state. The bonding between phosphorus and nitrogen is analogous to that observed for metallonitrenes. We also show that this nitrido phosphorus derivative can be used to transfer a nitrogen atom to organic fragments, a difficult task for transition metal-nitrido complexes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dielmann, Fabian -- Back, Olivier -- Henry-Ellinger, Martin -- Jerabek, Paul -- Frenking, Gernot -- Bertrand, Guy -- New York, N.Y. -- Science. 2012 Sep 21;337(6101):1526-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉University of California Riverside-CNRS Joint Research Chemistry Laboratory (UMI 2957), Department of Chemistry, University of California, Riverside, CA 92521-0403, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22997335" target="_blank"〉PubMed〈/a〉
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 97
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-09-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hayflick, Leonard -- New York, N.Y. -- Science. 2012 Sep 14;337(6100):1292. doi: 10.1126/science.337.6100.1292-a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22984048" target="_blank"〉PubMed〈/a〉
    Keywords: *Ethics, Research ; Female ; Humans ; Male ; *Patient Rights ; *Tissue Donors
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 98
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-04-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kupferschmidt, Kai -- New York, N.Y. -- Science. 2012 Apr 27;336(6080):407. doi: 10.1126/science.336.6080.407.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22539696" target="_blank"〉PubMed〈/a〉
    Keywords: *Global Health ; Humans ; Measles/*mortality/prevention & control ; World Health Organization
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 99
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-04-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Raoult, Didier -- New York, N.Y. -- Science. 2012 Apr 13;336(6078):152, 155; author reply 155. doi: 10.1126/science.336.6078.152-c.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22499921" target="_blank"〉PubMed〈/a〉
    Keywords: Microbiology/*history
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  • 100
    Publication Date: 2012-01-28
    Description: The processes responsible for the evolution of key innovations, whereby lineages acquire qualitatively new functions that expand their ecological opportunities, remain poorly understood. We examined how a virus, bacteriophage lambda, evolved to infect its host, Escherichia coli, through a novel pathway. Natural selection promoted the fixation of mutations in the virus's host-recognition protein, J, that improved fitness on the original receptor, LamB, and set the stage for other mutations that allowed infection through a new receptor, OmpF. These viral mutations arose after the host evolved reduced expression of LamB, whereas certain other host mutations prevented the phage from evolving the new function. This study shows the complex interplay between genomic processes and ecological conditions that favor the emergence of evolutionary innovations.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3306806/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3306806/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Meyer, Justin R -- Dobias, Devin T -- Weitz, Joshua S -- Barrick, Jeffrey E -- Quick, Ryan T -- Lenski, Richard E -- R00 GM087550/GM/NIGMS NIH HHS/ -- R00 GM087550-03/GM/NIGMS NIH HHS/ -- R00GM087550/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2012 Jan 27;335(6067):428-32. doi: 10.1126/science.1214449.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Zoology, Michigan State University, East Lansing, MI 48824, USA. justin.raymond.meyer@gmail.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22282803" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Bacterial Outer Membrane Proteins/genetics/*metabolism ; Bacteriophage lambda/*genetics/physiology ; Escherichia coli/genetics/metabolism/*virology ; *Evolution, Molecular ; Genome, Bacterial ; Genome, Viral ; *Mutation ; Polymorphism, Single Nucleotide ; Porins/genetics/*metabolism ; Receptors, Virus/genetics/*metabolism ; Selection, Genetic ; Viral Tail Proteins/chemistry/*genetics/metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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