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  • American Association for the Advancement of Science (AAAS)  (12)
  • 2005-2009  (12)
  • 1
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    Microbial population structures in the deep marine biosphere (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-10-06
    Description: The analytical power of environmental DNA sequences for modeling microbial ecosystems depends on accurate assessments of population structure, including diversity (richness) and relative abundance (evenness). We investigated both aspects of population structure for microbial communities at two neighboring hydrothermal vents by examining the sequences of more than 900,000 microbial small-subunit ribosomal RNA amplicons. The two vent communities have different population structures that reflect local geochemical regimes. Descriptions of archaeal diversity were nearly exhaustive, but despite collecting an unparalleled number of sequences, statistical analyses indicated additional bacterial diversity at every taxonomic level. We predict that hundreds of thousands of sequences will be necessary to capture the vast diversity of microbial communities, and that different patterns of evenness for both high- and low-abundance taxa may be important in defining microbial ecosystem dynamics.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Huber, Julie A -- Mark Welch, David B -- Morrison, Hilary G -- Huse, Susan M -- Neal, Phillip R -- Butterfield, David A -- Sogin, Mitchell L -- New York, N.Y. -- Science. 2007 Oct 5;318(5847):97-100.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Josephine Bay Paul Center, Marine Biological Laboratory, 7 MBL Street, Woods Hole, MA 02543, USA. jhuber@mbl.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17916733" target="_blank"〉PubMed〈/a〉
    Keywords: *Archaea/classification/genetics ; *Bacteria/classification/genetics ; *Biodiversity ; DNA, Archaeal/analysis ; DNA, Bacterial/analysis ; DNA, Ribosomal/analysis ; *Ecosystem ; Epsilonproteobacteria/classification/genetics ; Geologic Sediments/microbiology ; Pacific Ocean ; Polymerase Chain Reaction ; RNA, Ribosomal ; Seawater/*microbiology ; Sequence Analysis, DNA
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Human-specific gain of function in a developmental enhancer (2008)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2008-09-06
    Description: Changes in gene regulation are thought to have contributed to the evolution of human development. However, in vivo evidence for uniquely human developmental regulatory function has remained elusive. In transgenic mice, a conserved noncoding sequence (HACNS1) that evolved extremely rapidly in humans acted as an enhancer of gene expression that has gained a strong limb expression domain relative to the orthologous elements from chimpanzee and rhesus macaque. This gain of function was consistent across two developmental stages in the mouse and included the presumptive anterior wrist and proximal thumb. In vivo analyses with synthetic enhancers, in which human-specific substitutions were introduced into the chimpanzee enhancer sequence or reverted in the human enhancer to the ancestral state, indicated that 13 substitutions clustered in an 81-base pair module otherwise highly constrained among terrestrial vertebrates were sufficient to confer the human-specific limb expression domain.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2658639/" 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/PMC2658639/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Prabhakar, Shyam -- Visel, Axel -- Akiyama, Jennifer A -- Shoukry, Malak -- Lewis, Keith D -- Holt, Amy -- Plajzer-Frick, Ingrid -- Morrison, Harris -- Fitzpatrick, David R -- Afzal, Veena -- Pennacchio, Len A -- Rubin, Edward M -- Noonan, James P -- 1-F32-GM074367/GM/NIGMS NIH HHS/ -- F32 GM074367/GM/NIGMS NIH HHS/ -- F32 GM074367-02/GM/NIGMS NIH HHS/ -- HG003988/HG/NHGRI NIH HHS/ -- HL066681/HL/NHLBI NIH HHS/ -- MC_U127561093/Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2008 Sep 5;321(5894):1346-50. doi: 10.1126/science.1159974.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Genomics Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18772437" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Binding Sites ; Body Patterning/*genetics ; Conserved Sequence ; Embryonic Development ; *Enhancer Elements, Genetic ; Evolution, Molecular ; Extremities/*embryology ; Gene Expression Profiling ; *Gene Expression Regulation, Developmental ; Humans ; Limb Buds/embryology/metabolism ; Macaca mulatta/genetics ; Mice ; Mice, Transgenic ; Molecular Sequence Data ; Mutation ; PAX9 Transcription Factor/metabolism ; Pan troglodytes/genetics ; Selection, Genetic ; Transcription Factors/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
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    Comment on "Epitaxial BiFeO3 multiferroic thin film heterostructures" (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2005-02-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Eerenstein, W -- Morrison, F D -- Dho, J -- Blamire, M G -- Scott, J F -- Mathur, N D -- New York, N.Y. -- Science. 2005 Feb 25;307(5713):1203; author reply 1203.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Materials Science, University of Cambridge, Pembroke Street, Cambridge, CB2 3QZ, UK. we212@cam.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15731427" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    Don't dismiss astrobiology (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2005-04-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jakosky, Bruce M -- Anbar, Ariel D -- Des Marais, David -- Morrison, David -- Pace, Norman R -- New York, N.Y. -- Science. 2005 Apr 22;308(5721):495-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15849861" target="_blank"〉PubMed〈/a〉
    Keywords: *Exobiology ; Life
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
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    H2S induces a suspended animation-like state in mice (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2005-04-23
    Description: Mammals normally maintain their core body temperature (CBT) despite changes in environmental temperature. Exceptions to this norm include suspended animation-like states such as hibernation, torpor, and estivation. These states are all characterized by marked decreases in metabolic rate, followed by a loss of homeothermic control in which the animal's CBT approaches that of the environment. We report that hydrogen sulfide can induce a suspended animation-like state in a nonhibernating species, the house mouse (Mus musculus). This state is readily reversible and does not appear to harm the animal. This suggests the possibility of inducing suspended animation-like states for medical applications.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Blackstone, Eric -- Morrison, Mike -- Roth, Mark B -- GM48435/GM/NIGMS NIH HHS/ -- T32 AG00057/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 2005 Apr 22;308(5721):518.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular and Cellular Biology Program, University of Washington, Seattle, WA 98195, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15845845" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Basal Metabolism/*drug effects ; Behavior, Animal/drug effects ; Body Temperature/*drug effects ; Carbon Dioxide/metabolism ; Dose-Response Relationship, Drug ; Estivation ; Female ; Hibernation ; Hydrogen Sulfide/*pharmacology/toxicity ; Mice ; Mice, Inbred C57BL ; Oxygen Consumption/drug effects ; Temperature
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    Teaching. Opportunities to learn in America's elementary classrooms (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-03-31
    Description: 〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2137172/" 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/PMC2137172/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pianta, Robert C -- Belsky, Jay -- Houts, Renate -- Morrison, Fred -- National Institute of Child Health and Human Development (NICHD) Early Child Care Research Network -- U01 HD033343-13/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 2007 Mar 30;315(5820):1795-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Advanced Study of Teaching and Learning, University of Virginia, Charlottesville, VA 22903, USA. rcp4p@virginia.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17395814" target="_blank"〉PubMed〈/a〉
    Keywords: Child ; *Education/methods/standards ; Humans ; *Learning ; Longitudinal Studies ; *Teaching/methods/standards ; United States
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
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    The early years. Algorithm-guided individualized reading instruction (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-01-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Connor, Carol McDonald -- Morrison, Frederick J -- Fishman, Barry J -- Schatschneider, Christopher -- Underwood, Phyllis -- R01 HD48539/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 2007 Jan 26;315(5811):464-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Florida Center for Reading Research, Florida State University, Tallahassee, FL 32301, USA. cconnor@fsu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17255498" target="_blank"〉PubMed〈/a〉
    Keywords: *Algorithms ; Child ; Education, Continuing ; Educational Measurement ; Educational Status ; *Educational Technology ; Faculty ; Humans ; Phonetics ; *Reading ; *Software ; Teaching/*methods ; Vocabulary
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
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    Genomic minimalism in the early diverging intestinal parasite Giardia lamblia (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-09-29
    Description: The genome of the eukaryotic protist Giardia lamblia, an important human intestinal parasite, is compact in structure and content, contains few introns or mitochondrial relics, and has simplified machinery for DNA replication, transcription, RNA processing, and most metabolic pathways. Protein kinases comprise the single largest protein class and reflect Giardia's requirement for a complex signal transduction network for coordinating differentiation. Lateral gene transfer from bacterial and archaeal donors has shaped Giardia's genome, and previously unknown gene families, for example, cysteine-rich structural proteins, have been discovered. Unexpectedly, the genome shows little evidence of heterozygosity, supporting recent speculations that this organism is sexual. This genome sequence will not only be valuable for investigating the evolution of eukaryotes, but will also be applied to the search for new therapeutics for this parasite.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Morrison, Hilary G -- McArthur, Andrew G -- Gillin, Frances D -- Aley, Stephen B -- Adam, Rodney D -- Olsen, Gary J -- Best, Aaron A -- Cande, W Zacheus -- Chen, Feng -- Cipriano, Michael J -- Davids, Barbara J -- Dawson, Scott C -- Elmendorf, Heidi G -- Hehl, Adrian B -- Holder, Michael E -- Huse, Susan M -- Kim, Ulandt U -- Lasek-Nesselquist, Erica -- Manning, Gerard -- Nigam, Anuranjini -- Nixon, Julie E J -- Palm, Daniel -- Passamaneck, Nora E -- Prabhu, Anjali -- Reich, Claudia I -- Reiner, David S -- Samuelson, John -- Svard, Staffan G -- Sogin, Mitchell L -- AI42488/AI/NIAID NIH HHS/ -- AI43273/AI/NIAID NIH HHS/ -- AI51687/AI/NIAID NIH HHS/ -- R01 AI043273/AI/NIAID NIH HHS/ -- R01 AI048082/AI/NIAID NIH HHS/ -- R01 HG004164/HG/NHGRI NIH HHS/ -- R01 HG004164-01/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2007 Sep 28;317(5846):1921-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Marine Biological Laboratory, Woods Hole, MA 02543-1015, USA. morrison@mbl.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17901334" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; *Biological Evolution ; DNA Replication/genetics ; *Eukaryotic Cells ; Gene Transfer, Horizontal ; Genes, Protozoan ; *Genome, Protozoan ; Genomics ; Giardia lamblia/classification/*genetics/physiology ; Metabolic Networks and Pathways/genetics ; Molecular Sequence Data ; Phylogeny ; Protein Kinases/genetics/metabolism ; Protozoan Proteins/chemistry/genetics/metabolism ; RNA Processing, Post-Transcriptional ; Signal Transduction ; Transcription, Genetic
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 9
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    Genetics. A breakthrough for global public health (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-06-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chadee, Dave D -- Kittayapong, Pattamaporn -- Morrison, Amy C -- Tabachnick, Walter J -- New York, N.Y. -- Science. 2007 Jun 22;316(5832):1703-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Life Sciences, University of the West Indies, St. Augustine, Trinidad. dchadee@fsa.uwi.tt〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17588917" target="_blank"〉PubMed〈/a〉
    Keywords: Aedes/*genetics ; Animals ; *Genome, Insect ; Humans ; Insect Vectors/genetics ; Public Health ; Yellow Fever/prevention & control/transmission
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 10
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    The structure of an open form of an E. coli mechanosensitive channel at 3.45 A resolution (2008)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2008-08-30
    Description: How ion channels are gated to regulate ion flux in and out of cells is the subject of intense interest. The Escherichia coli mechanosensitive channel, MscS, opens to allow rapid ion efflux, relieving the turgor pressure that would otherwise destroy the cell. We present a 3.45 angstrom-resolution structure for the MscS channel in an open conformation. This structure has a pore diameter of approximately 13 angstroms created by substantial rotational rearrangement of the three transmembrane helices. The structure suggests a molecular mechanism that underlies MscS gating and its decay of conductivity during prolonged activation. Support for this mechanism is provided by single-channel analysis of mutants with altered gating characteristics.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3299565/" 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/PMC3299565/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wang, Wenjian -- Black, Susan S -- Edwards, Michelle D -- Miller, Samantha -- Morrison, Emma L -- Bartlett, Wendy -- Dong, Changjiang -- Naismith, James H -- Booth, Ian R -- 040174/Wellcome Trust/United Kingdom -- 077564/Wellcome Trust/United Kingdom -- BB/F003455/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- G0400277/Medical Research Council/United Kingdom -- G0400277(70731)/Medical Research Council/United Kingdom -- GR077564MA/Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2008 Aug 29;321(5893):1179-83. doi: 10.1126/science.1159262.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for Biomolecular Sciences, The North Haugh, University of St. Andrews, KY16 9ST, Scotland, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18755969" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Membrane/*chemistry ; Crystallography, X-Ray ; Electric Conductivity ; Escherichia coli/*chemistry/physiology ; Escherichia coli Proteins/*chemistry/genetics/*physiology ; Hydrophobic and Hydrophilic Interactions ; *Ion Channel Gating ; Ion Channels/*chemistry/genetics/*physiology ; Models, Molecular ; Mutant Proteins/chemistry ; Mutation ; Patch-Clamp Techniques ; Pressure ; Protein Conformation ; Protein Structure, Secondary ; Protein Structure, Tertiary
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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