Browsing by Title
Now showing items 73076-73095 of 91813
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(John Wiley & Sons, Inc., 1998-09-28)A quantum-chemical structure]affinity relationship for kynurenic acid derivatives KA. acting at the GlyrNMDA site is presented. The results of this study strongly suggest that these molecules bind to this site through ...
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(Elsevier Inc, 2008-06)Time-averaged conformations of ( )-1-[3,4-(methylenedioxy)phenyl]-2-methylaminopropane hydrochloride (MDMA, ‘‘ecstasy’’) in D2O, and of its free base and trifluoroacetate in CDCl3, were deduced from their 1H NMR spectra ...
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(John Wiley & Sons, lnc., 1990-01-30)A model for catecholamine storage in vesicles is analyzed within the ,CRI CNDO/2 approach inc1uding conlinuum solvenl crfcels. The model considers lhe approach of calionic norepinephrine (NE) 10 a positively charged ...
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(1991)A model for catecholamine storage in vesicles is analyzed within the SCRF‐CNDO/2 approach including continuum solvent effects. The model considers the approach of cationic norepinephrine (NE) to a positively charged ...
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(1985)We have analyzed the dependence of the serotonin receptor binding affinity on the electronic and steric reactivity indexes for a group of 5‐substituted tryptamines. The approaches employed are a new nonempirical Quantitative ...
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(2002)We look at quasar environment in the context of large-scale structure (LSS) – a new approach, giving a more informed interpretation of quasar–galaxy correlations. This paper presents our first results for a sample of z ...
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(Universidad de Chile, 2013)Este trabajo de tesis contiene dos cap\'itulos principales, donde se estudian dos problemas independientes de Modelaci\'on Matem\'atica. En el Cap\'titulo 1 se estudia la existencia y unicidad de distribuciones quasi ...
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(1997)This work is concerned with the quasi-diagonalization of the impulsive linear systemx′=A(t)x,x(t+k)=Bkx(t-k), where the functionA(t) is bounded and piecewise uniformly continuous, and (Bk)∞k=1is a bounded sequence of impulse ...
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(Wiley, 2017)Three major factors decrease the accuracy of the cure measurement in standard-isothermal testing using differential scanning calorimetry (DSC). First, cure occurs during the heating step. Second, data are lost during the ...
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(Schloss Dagstuhl- Leibniz-Zentrum fur Informatik GmbH, Dagstuhl Publishing, 2018)We consider two optimization problems in planar graphs. In Maximum Weight Independent Set of Objects we are given a graph G and a family D of objects, each being a connected subgraph of G with a prescribed weight, and the ...
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(Elsevier, 2021)Words are sequences of letters over a finite alphabet. We study two intimately related topics for this object: quasi-randomness and limit theory. With respect to the first topic we investigate the notion of uniform ...
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(Springer Science and Business Media Deutschland GmbH, 2020)
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(2009)In this paper we study quasi-stationarity for a large class of Kolmogorov diffusions. The main novelty here is that we allow the drift to go to−∞at the origin, and the diffusion to have an entrance boundary at +∞. These ...
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(Ecole Polytechnique, 2020)We study a class of multi-species birth-and-death processes going almost surely to extinction and admitting a unique quasi-stationary distribution (qsd for short). When rescaled by K and in the limit K ! +1, the realizations ...
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(2011)We study the probabilistic evolution of a birth and death continuous time measure-valued process with mutations and ecological interactions. The individuals are characterized by (phenotypic) traits that take values in a ...
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(American Physical Society, 2013)We propose a route to spatiotemporal chaos for one-dimensional stationary patterns, which is a natural extension of the quasiperiodicity route for low-dimensional chaos to extended systems. This route is studied through ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 2003-08)Major- and trace-element, Sr-Nd isotopes, and mineral chemistry data were obtained for a collection of volcanic rock samples erupted by the Cay and Maca. Quaternary volcanoes, Patagonian Andes (similar to45degreesS, Chile). ...
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(Nature, 2020)The southern coastline of South America is a remarkable area to evaluate how Quaternary glacial processes impacted the demography of the near-shore marine biota. Here we present new phylogeographic analyses in the pulmonate ...
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(ELSEVIER, 2011-01-01)We report for the first time the use of quaternized chitosan (QCHI) for the immobilization of gold nanopartides (NP) and glucose oxidase (GOD), the characterization of the resulting platform and its biocatalytic activity ...
