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  • 1
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    High-pressure study of the infrared active modes in wurtzite and rocksalt ZnO (2011)
    American Physical Society (APS)
    Details
    Publication Date: 2011-09-07
    Description: Author(s): J. Pellicer-Porres, A. Segura, V. Panchal, A. Polian, F. Decremps, and P. Dumas We present a high-pressure study of ZnO carried out in the mid- to far-infrared frequency domain with the aim of characterizing the optic modes of wurtzite and rocksalt ZnO. We obtained the pressure coefficients of the E 1 (TO) , E 1 (LO) , A 1 (TO) , and A 1 (LO) modes of the low-pressure wurtzite phase and c... [Phys. Rev. B 84, 125202] Published Tue Sep 06, 2011
    Keywords: Semiconductors I: bulk
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
    Published by American Physical Society (APS)
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  • 2
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    A genomic-systems biology map for cardiovascular function (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-11-27
    Description: With the draft sequence of the human genome available, there is a need to better define gene function in the context of systems biology. We studied 239 cardiovascular and renal phenotypes in 113 male rats derived from an F2 intercross and mapped 81 of these traits onto the genome. Aggregates of traits were identified on chromosomes 1, 2, 7, and 18. Systems biology was assessed by examining patterns of correlations ("physiological profiles") that can be used for gene hunting, mechanism-based physiological studies, and, with comparative genomics, translating these data to the human genome.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stoll, M -- Cowley, A W Jr -- Tonellato, P J -- Greene, A S -- Kaldunski, M L -- Roman, R J -- Dumas, P -- Schork, N J -- Wang, Z -- Jacob, H J -- 1P50-HL-54998/HL/NHLBI NIH HHS/ -- R01 HL064541/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2001 Nov 23;294(5547):1723-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology, Bioinformatics Research Center, and, Human and Molecular Genetics Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226-0509, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11721057" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blood Pressure/drug effects/genetics ; *Cardiovascular Physiological Phenomena/drug effects ; Chromosome Mapping/*methods ; Chromosomes/genetics ; Crosses, Genetic ; Female ; Genomics/*methods ; Humans ; Kidney/physiology ; Lod Score ; Male ; Nitric Oxide Synthase/genetics ; Norepinephrine/pharmacology ; Phenotype ; Quantitative Trait, Heritable ; Rats ; Vasodilation/genetics
    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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    Managing nitrogen for sustainable development (2015)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2015-11-26
    Description: Improvements in nitrogen use efficiency in crop production are critical for addressing the triple challenges of food security, environmental degradation and climate change. Such improvements are conditional not only on technological innovation, but also on socio-economic factors that are at present poorly understood. Here we examine historical patterns of agricultural nitrogen-use efficiency and find a broad range of national approaches to agricultural development and related pollution. We analyse examples of nitrogen use and propose targets, by geographic region and crop type, to meet the 2050 global food demand projected by the Food and Agriculture Organization while also meeting the Sustainable Development Goals pertaining to agriculture recently adopted by the United Nations General Assembly. Furthermore, we discuss socio-economic policies and technological innovations that may help achieve them.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhang, Xin -- Davidson, Eric A -- Mauzerall, Denise L -- Searchinger, Timothy D -- Dumas, Patrice -- Shen, Ye -- England -- Nature. 2015 Dec 3;528(7580):51-9. doi: 10.1038/nature15743. Epub 2015 Nov 23.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Woodrow Wilson School of Public and International Affairs, Princeton University, Princeton, New Jersey 08544, USA. ; Princeton Environmental Institute, Princeton University, Princeton, New Jersey 08544, USA. ; Appalachian Laboratory, University of Maryland Center for Environmental Science, Frostburg, Maryland 21532, USA. ; Department of Civil and Environmental Engineering, Princeton University, Princeton, New Jersey 08544, USA. ; Centre de Cooperation Internationale en Recherche Agronomique pour le Developpement (CIRAD), 75116, Paris, France. ; Centre International de Recherche sur l'Environnement et le Developpement (CIRED), 94736 Nogent-sur-Marne, France. ; Department of Epidemiology and Biostatistics, College of Public Health, University of Georgia, Athens, Georgia 30602, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26595273" target="_blank"〉PubMed〈/a〉
    Keywords: *Agriculture/economics/standards/statistics & numerical data/trends ; Climate Change ; *Conservation of Natural Resources/trends ; Crops, Agricultural/economics/*metabolism/supply & distribution ; Ecology ; Environmental Pollution/statistics & numerical data ; Fertilizers/economics/supply & distribution/utilization ; Food Supply ; Gross Domestic Product ; Humans ; Internationality ; Nitrogen/chemistry/*metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 4
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    Experimental and theoretical evidence for an ionic crystal of ammonia at high pressure (2014)
    American Physical Society (APS)
    Details
    Publication Date: 2014-05-09
    Description: Author(s): S. Ninet, F. Datchi, P. Dumas, M. Mezouar, G. Garbarino, A. Mafety, C. J. Pickard, R. J. Needs, and A. M. Saitta We report experimental and theoretical evidence that solid molecular ammonia becomes unstable at room temperature and high pressures and transforms into an ionic crystalline form. This material has been characterized in both hydrogenated (NH3) and deuterated (ND3) ammonia samples up to about 180 and... [Phys. Rev. B 89, 174103] Published Thu May 08, 2014
    Keywords: Structure, structural phase transitions, mechanical properties, defects
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
    Published by American Physical Society (APS)
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  • 5
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    WATCLUST: a tool for improving the design of drugs based on protein-water interactions (2015)
    Oxford University Press
    Details
    Publication Date: 2015-11-05
    Description: Motivation: Water molecules are key players for protein folding and function. On the protein surface, water is not placed randomly, but display instead a particular structure evidenced by the presence of specific water sites (WS). These WS can be derived and characterized using explicit water Molecular Dynamics simulations, providing useful information for ligand binding prediction and design. Here we present WATCLUST, a WS determination and analysis tool running on the VMD platform. The tool also allows direct transfer of the WS information to Autodock program to perform biased docking. Availability and implementation: The WATCLUST plugin and documentation are freely available at http://sbg.qb.fcen.uba.ar/watclust/ . Contact: marcelo@qi.fcen.uba.ar , adrian@qi.fcen.uba.ar
    Print ISSN: 1367-4803
    Electronic ISSN: 1460-2059
    Topics: Biology , Computer Science , Medicine
    Published by Oxford University Press
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  • 6
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    Topologically frustrated ionisation in a water-ammonia ice mixture (2017)
    Springer Nature
    Details
    Publication Date: 2017-10-20
    Description: Topologically frustrated ionisation in a water-ammonia ice mixture Nature Communications, Published online: 20 October 2017; doi:10.1038/s41467-017-01132-z Water and ammonia are major constituents of icy planet interiors, however their phase behaviour under extreme conditions remain relatively unknown. Here, the authors show that ammonia monohydrate transforms under pressure into an alloy composed of molecules as well as ions, owing to a topological frustration.
    Electronic ISSN: 2041-1723
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General , Physics
    Published by Springer Nature
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  • 7
    Electronic Resource
    Electronic Resource
    Blue ruthenium chloride complexes and their oxidation products (1971)
    s.l. : American Chemical Society
    Inorganic chemistry 10 (1971), S. 2755-2759 
    Details
    ISSN: 1520-510X
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ic50106a026
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  • 8
    Electronic Resource
    Electronic Resource
    Rates of hydrolysis of the monomeric ruthenium(II) chloride complexes (1972)
    s.l. : American Chemical Society
    Inorganic chemistry 11 (1972), S. 531-535 
    Details
    ISSN: 1520-510X
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ic50109a021
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  • 9
    Electronic Resource
    Electronic Resource
    Crystallization of the dimerization-initiation site of genomic HIV-1 RNA: preliminary crystallographic results (1999)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 55 (1999), S. 281-284 
    Details
    ISSN: 1399-0047
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: The genomic RNA of all retroviruses is encapsidated in virions as a dimer of single-stranded chains held together near their 5′-end. For HIV-1, the initial site of dimerization has been shown to be a hairpin with a nine-residue loop containing a self-complementary sequence of six residues. This structure is proposed to promote dimerization by loop–loop interaction and formation of a so-called `kissing complex'. A 23-nucleotide RNA strand containing the loop enclosed by a seven base-pair stem has been synthesized. This oligomer was crystallized by the vapour-diffusion method at 310 K, pH 6.5, with methyl-pentanediol as the precipitant agent in the presence of MgCl2, KCl and spermine. Quasi-complete diffraction data were obtained at 2.7 Å resolution with a conventional X-ray source and at 2.3 Å resolution on a synchrotron beamline. The space group is P3121 or its enantiomorph P3221, with cell parameters a = b = 60.1, c = 65.9 Å at ambient temperature, or a = b = 59.0, c = 64.3 Å in a nitrogen-gas stream. There are two oligomers per asymmetric unit as determined from absorbance measurements of a dissolved crystal whose volume was carefully determined. In some cases, either perfectly or partially twinned crystals were obtained. Perfect twinning is detected by an apparent hexagonal symmetry and yields unusable crystallographic data, whilst partial twinning yields usable data after adequate processing. Structure solution is under way by searching for heavy-atom derivatives and systematically substituting bromo- or iodo-uridines for uridines.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0907444998008506
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  • 10
    Electronic Resource
    Electronic Resource
    An efficient method for solving RNA structures: MAD phasing by replacing magnesium with zinc (2001)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 57 (2001), S. 330-332 
    Details
    ISSN: 1399-0047
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: The structure of a 46-nucleotide RNA complex has been successfully solved using multi-wavelength anomalous dispersion (MAD) at the zinc K edge. Taking advantage of the eight magnesium-binding sites, it has been shown that for five of them magnesium could be replaced by zinc. This resulted in an excellent 2.0 Å MAD electron-density map. Zinc, in common with some other transition metals, is able to replace magnesium in RNA structures, but zinc has the advantage of its K edge being ideally located at 1.284 Å. As most RNA molecules contain magnesium-binding sites, it is suggested that this method could be a valuable alternative to the use of bromo derivatives of bases, which is limited to chemically synthesizable and thus rather short RNA sequences.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0907444900017558
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