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  • Articles  (13)
  • Springer  (6)
  • American Association for the Advancement of Science (AAAS)  (5)
  • Environmental & Engineering Geophysical Society (EEGS)  (1)
  • Wiley  (1)
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  • Articles  (13)
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  • 1
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    A viral RNA structural element alters host recognition of nonself RNA (2014)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2014-02-01
    Description: Although interferon (IFN) signaling induces genes that limit viral infection, many pathogenic viruses overcome this host response. As an example, 2'-O methylation of the 5' cap of viral RNA subverts mammalian antiviral responses by evading restriction of Ifit1, an IFN-stimulated gene that regulates protein synthesis. However, alphaviruses replicate efficiently in cells expressing Ifit1 even though their genomic RNA has a 5' cap lacking 2'-O methylation. We show that pathogenic alphaviruses use secondary structural motifs within the 5' untranslated region (UTR) of their RNA to alter Ifit1 binding and function. Mutations within the 5'-UTR affecting RNA structural elements enabled restriction by or antagonism of Ifit1 in vitro and in vivo. These results identify an evasion mechanism by which viruses use RNA structural motifs to avoid immune restriction.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4209899/" 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/PMC4209899/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hyde, Jennifer L -- Gardner, Christina L -- Kimura, Taishi -- White, James P -- Liu, Gai -- Trobaugh, Derek W -- Huang, Cheng -- Tonelli, Marco -- Paessler, Slobodan -- Takeda, Kiyoshi -- Klimstra, William B -- Amarasinghe, Gaya K -- Diamond, Michael S -- AI049820/AI/NIAID NIH HHS/ -- P41GM66326/GM/NIGMS NIH HHS/ -- P41RR02301/RR/NCRR NIH HHS/ -- R01 AI083383/AI/NIAID NIH HHS/ -- R01 AI104972/AI/NIAID NIH HHS/ -- U19 AI083019/AI/NIAID NIH HHS/ -- UL1 TR000071/TR/NCATS NIH HHS/ -- UL1TR000071/TR/NCATS NIH HHS/ -- New York, N.Y. -- Science. 2014 Feb 14;343(6172):783-7. doi: 10.1126/science.1248465. Epub 2014 Jan 30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24482115" target="_blank"〉PubMed〈/a〉
    Keywords: 5' Untranslated Regions/immunology ; Alphavirus/*pathogenicity/physiology ; Alphavirus Infections/*immunology/virology ; Animals ; Carrier Proteins/antagonists & inhibitors/genetics/immunology ; Host-Pathogen Interactions/*immunology ; Mice ; Mice, Inbred C57BL ; Mice, Mutant Strains ; Mutation ; Nucleic Acid Conformation ; RNA Caps/*chemistry/*immunology ; RNA, Viral/*chemistry/*immunology ; Virus Replication
    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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    Australian prehistory: new aspects of antiquity (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1979-01-05
    Description: Human occupation of greater Australia occurred by 50,000 years ago, probably through deliberate voyaging by a small group of people. Later migrations, if any, are unlikely to have significantly changed the original genetic and cultural make-up While early Aborigines may have hunted extinct megafauna, the data do not support a rapid "Pleistocene overkill" hypothesis. Finally, aspects of Australian Aboriginal economy, especially plant utilization, and technology-the small tool tradition, ground stone hatchets and boomerangs-are of considerable antiquity and probably originated locally.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉White, J P -- O'connell, J F -- New York, N.Y. -- Science. 1979 Jan 5;203(4375):21-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17840495" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 3
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    Melanesian prehistory: some recent advances (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-02-15
    Description: Human occupation of New Guinea had begun 50,000 years ago, but islands further east were settled only in Recent times. In part of the New Guinea highlands, wet and dry horticultural systems began by 9000 years ago. Local intensification is evident until the present, but only the most recent major crop (sweet potato, which has been grown in the region for less than 300 years) is documented. On the south coast, exchange systems and economies locally diversify over the last two millennia. In the Melanesian islands, exotic materials were moved 3000 kilometers 3000 years ago, but whether traders or colonists were involved is not yet clear. The prehistory of the area is proving more complex than was believed even a decade ago.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉White, J P -- Allen, J -- New York, N.Y. -- Science. 1980 Feb 15;207(4432):728-34.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17795991" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 4
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    A pacific island (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-05-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉White, J P -- New York, N.Y. -- Science. 1983 May 20;220(4599):836-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17834182" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 5
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    Mid-recent human occupation and resource exploitation in the bismarck archipelago (1978)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1978-02-24
    Description: Human settlement of the Bismarck Archipelago occurred by 6000 to 7500 years ago. Early inhabitants of New Ireland drew on widely dispersed stone sources, including obsidian from Talasea (New Britain), whereas those after about 3000 years ago used either stone from more local sources or obsidian from Lou Island (Admiralty Islands group) or Talasea. The dates and resource changes support a gradualist model of Melanesian settlement.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉White, J P -- Downie, J E -- Ambrose, W R -- New York, N.Y. -- Science. 1978 Feb 24;199(4331):877-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17757585" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 6
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    Synthesis of the First Homoleptic Trisilaallyl Chloride: ­3-Chloro-1, 1,2, 3,3-pentakis(2′,4′,6′-triisopropylphenyl)trisil-1-ene (2015)
    Wiley
    Details
    Publication Date: 2015-09-01
    Description: Unsaturated silicon compounds are valuable building blocks for the synthesis of molecules with novel silicon-based structural motifs with potential applications in materials chemistry. The difficulties associated with the transfer of the Si=Si moiety to promising substrates can be explained by the lack of suitably functionalized derivatives. Herein we report the synthesis and full characterization of the first homoleptic trisilaallyl chloride R 2 Si = Si( R )–Si(Cl) R 2 ( R = 2, 4,6-triisopropylphenyl) by an unprecedented nucleophilic substitution at a central silicon atom under retention of an adjacent Si=Si double bond. Attempts to reductively generate the corresponding allylic anion led to the cleavage of the Si–Si single bond and isolation of the Et 2 O solvate of the corresponding disilenide.
    Print ISSN: 0044-2313
    Electronic ISSN: 1521-3749
    Topics: Chemistry and Pharmacology
    Published by Wiley
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  • 7
    Electronic Resource
    Electronic Resource
    Deformation in the light Br isotopes (1988)
    Springer
    Hyperfine interactions 43 (1988), S. 481-488 
    Details
    ISSN: 1572-9540
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The nuclear ground state spins of the odd-A Br nuclides75, 77, 79Br with Z=35 are all 3/2−. Nilsson orbital calculations show that the 35th proton occupies the f5/2 [301]3/2− orbital for ε〈0.20 and the p3/2 [312]3/2− orbital at larger deformations. The magnetic moments of these two states differ by a factor of two, giving clear evidence for the magnitude of the ground state deformation. Low Temperature Nuclear Orientation measurements made in Oxford and Bonn on76, 77gBrFe prepared at ISOLDE, and on line at the SERC Daresbury Laboratory on72, 74m, 75BrFe, have yielded the magnetic moments of these isotopes, using a two non-zero field model with magnetic hyperfine fields of +81.38(6) T and 26(2) T. The spin of the73Br ground state is also deduced. An interpretation of the ground state configurations of these isotopes is given.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02398329
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  • 8
    Electronic Resource
    Electronic Resource
    Magnetic hyperfine field of arsenic in nickel by NMR/ON of71,72As (1989)
    Springer
    Hyperfine interactions 51 (1989), S. 847-850 
    Details
    ISSN: 1572-9540
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The magnetic hyperfine splitting frequencies of71AsNi and72AsNi in a 0.11 Tesla external magnetic field have been determined by NMR/ON method as 66.00(6) MHz and 106.17(13) MHz respectively. Using the known magnetic moments of μ(71As)=1.6735(18) and μ(72As)=−2.1566(3), the hyperfine fields were deduced asB hf(71AsNi)=12.824(19) Tesla andB hf(72AsNi)=12.807(16) Tesla.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02407790
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  • 9
    Electronic Resource
    Electronic Resource
    Electric quadrupole orientation in zinc. The variation of electric field gradient with atomic number through the 4sp series (1988)
    Springer
    Hyperfine interactions 43 (1988), S. 205-208 
    Details
    ISSN: 1572-9540
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Using the top-loading PrNi5 nuclear demagnetisation stage /1/ to reach temperatures close to 1mK, electric quadrupole orientation of trace 4sp series impurities in zinc has been measured. Results establish the variation of the electric field gradient at impurity nuclei in this series and also yield the ratio of the electric quadrupole moments of71As and72As.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02398300
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  • 10
    Electronic Resource
    Electronic Resource
    Magnetic hyperfine field at caesium in iron (1990)
    Springer
    Hyperfine interactions 59 (1990), S. 461-464 
    Details
    ISSN: 1572-9540
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We report temperature dependence of nuclear orientation (NO), and the first observation of NMR/ON on Cs in iron.132, 136Cs were implanted at room temperature into polycrystalline and single crystal iron. NO values for the (average) magnetic hyperfine field Bhf (CsFe) are close to 34T, intermediate between the value of 40.7T found in on-line samples made at mK temperatures and the NMR/ON value of 27.8 (2)T. The latter studies. The site/field distribution is briefly discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02401272
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