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  • Articles  (5)
  • American Association for the Advancement of Science (AAAS)  (3)
  • Wiley-Blackwell  (2)
  • Chemistry and Pharmacology  (5)
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  • Articles  (5)
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  • 1
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    The 2010 Mw 8.8 Maule megathrust earthquake of Central Chile, monitored by GPS (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-04-30
    Description: Large earthquakes produce crustal deformation that can be quantified by geodetic measurements, allowing for the determination of the slip distribution on the fault. We used data from Global Positioning System (GPS) networks in Central Chile to infer the static deformation and the kinematics of the 2010 moment magnitude (M(w)) 8.8 Maule megathrust earthquake. From elastic modeling, we found a total rupture length of ~500 kilometers where slip (up to 15 meters) concentrated on two main asperities situated on both sides of the epicenter. We found that rupture reached shallow depths, probably extending up to the trench. Resolvable afterslip occurred in regions of low coseismic slip. The low-frequency hypocenter is relocated 40 kilometers southwest of initial estimates. Rupture propagated bilaterally at about 3.1 kilometers per second, with possible but not fully resolved velocity variations.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vigny, C -- Socquet, A -- Peyrat, S -- Ruegg, J-C -- Metois, M -- Madariaga, R -- Morvan, S -- Lancieri, M -- Lacassin, R -- Campos, J -- Carrizo, D -- Bejar-Pizarro, M -- Barrientos, S -- Armijo, R -- Aranda, C -- Valderas-Bermejo, M-C -- Ortega, I -- Bondoux, F -- Baize, S -- Lyon-Caen, H -- Pavez, A -- Vilotte, J P -- Bevis, M -- Brooks, B -- Smalley, R -- Parra, H -- Baez, J-C -- Blanco, M -- Cimbaro, S -- Kendrick, E -- New York, N.Y. -- Science. 2011 Jun 17;332(6036):1417-21. doi: 10.1126/science.1204132. Epub 2011 Apr 28.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratoire de Geologie de l'Ecole Normale Superieure, UMR CNRS 8538, Paris, France. vigny@biotite.ens.fr〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21527673" 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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  • 2
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    Tryptophan-accelerated electron flow through proteins (2008)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2008-06-28
    Description: Energy flow in biological structures often requires submillisecond charge transport over long molecular distances. Kinetics modeling suggests that charge-transfer rates can be greatly enhanced by multistep electron tunneling in which redox-active amino acid side chains act as intermediate donors or acceptors. We report transient optical and infrared spectroscopic experiments that quantify the extent to which an intervening tryptophan residue can facilitate electron transfer between distant metal redox centers in a mutant Pseudomonas aeruginosa azurin. Cu(I) oxidation by a photoexcited Re(I)-diimine at position 124 on a histidine(124)-glycine(123)-tryptophan(122)-methionine(121) beta strand occurs in a few nanoseconds, fully two orders of magnitude faster than documented for single-step electron tunneling at a 19 angstrom donor-acceptor distance.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shih, Crystal -- Museth, Anna Katrine -- Abrahamsson, Malin -- Blanco-Rodriguez, Ana Maria -- Di Bilio, Angel J -- Sudhamsu, Jawahar -- Crane, Brian R -- Ronayne, Kate L -- Towrie, Mike -- Vlcek, Antonin Jr -- Richards, John H -- Winkler, Jay R -- Gray, Harry B -- DK19038/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 2008 Jun 27;320(5884):1760-2. doi: 10.1126/science.1158241.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Beckman Institute, California Institute of Technology, Pasadena, CA 91125, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18583608" target="_blank"〉PubMed〈/a〉
    Keywords: Azurin/*chemistry ; Copper/*chemistry ; Crystallography, X-Ray ; *Electrons ; Energy Transfer ; Kinetics ; Ligands ; Models, Chemical ; Mutant Proteins/chemistry ; Oxidation-Reduction ; Phenylalanine/chemistry ; Pseudomonas aeruginosa/chemistry ; Rhenium/chemistry ; Spectrum Analysis ; Thermodynamics ; Tryptophan/*chemistry ; Tyrosine/chemistry
    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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    Science-based wildlife disease response (2019)
    American Association for the Advancement of Science (AAAS)
    In: Science
    Details
    Publication Date: 2019
    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
    Electronic Resource
    Electronic Resource
    Preferential interactions of poly(N-vinyl-2-pyrrolidone) in the binary mixture water/CdCl2 (1995)
    New York, NY [u.a.] : Wiley-Blackwell
    Polymer International 36 (1995), S. 345-351 
    Details
    ISSN: 0959-8103
    Keywords: viscometry ; densimetry ; unperturbed dimensions ; preferential interactions ; poly(N-vinyl-2-pyrrolidone) ; CdCl2 ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: The poly(N-vinyl-2-pyrrolidone)(PVP)(2)/water(1)/CdCl2(3) ternary system has been studied by viscometry, densimetry and atomic absorption spectrophotometry. In this system a preferential adsorption of Cd2+ at all solvent compositions studied and a conformational transition at 4mM of salt, the concentration at which a preferential adsorption minimum of Cd2+ in exhibited, are observed. The PVP/Cd2+ bound molar ratio is 0·23. CdCl2 behaves as a salting-in agent for the macromolecule. The binary solvent mixture is thermodynamically more favourable at salt concentrations greater than 10 mM of CdCl2.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pi.1995.210360407
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Viscosity behaviour of poly(ethyl methacrylate) in the ethyl acetate/tert-butanol binary mixture: total and preferential adsorption (1996)
    New York, NY [u.a.] : Wiley-Blackwell
    Polymer International 41 (1996), S. 59-65 
    Details
    ISSN: 0959-8103
    Keywords: preferential adsorption ; total adsorption ; unperturbed dimensions ; poly(ethyl methacrylate) ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: The behaviour of poly(ethyl methacrylate) (PEMA) in the ethyl acetate (1)/tert-butanol (2) binary mixture is studied by laser light scattering, differential refractometry and viscometry. Ethyl acetate is a solvent for the polymer and tert-butanol is a precipitant. Preferential adsorption of tert-butanol up to 15% alcohol in the binary mixture is observed, ethyl acetate being preferentially adsorbed in the macromolecular coil at higher percentage of alcohol in the solvent mixture. Total adsorption of PEMA is independent of the amount of tert-butanol in the solvent. Various theoretical expressions for the preferential and total adsorption coefficients are used; their agreement or disagreement with the experimental results is explained on the basis of polymer-solvent interactions.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
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