Artículos de revistas: Recent submissions
Now showing items 4061-4080 of 4968
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(Sociedad de Neurología, Psiquiatría y Neurocirugía, 1991-08)A model of conscioussness rooted in the concept of intentionalit y is presented. Intentionallity is analyzed from some phylasophical sources. From this analysis it appears clear chat in ten tionalit y is (he nec/]SS8ry ...
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(Elsevier Ltd., 2009-01-16)High concentration of fine airborne particulates is considered one of the major environmental pollutants in Santiago, the Chilean Capital city, which in 1997 was declared a PM10 saturated zone. To date there is no control ...
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(Editorial Board, 2010-11-12)The sesquiterpene pacifenol is one of the main constituents of the red alga Laurencia claviformis. Earlier work on the semisynthetic derivatives of pacifenol afforded a series of halogenated sesquiterpenes. The aim of the ...
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(Sociedad Chilena de Química, 2002-12-02)AZINDO/1 quantum-chemical structure-affinity relationship study is presented for the interaction of a group of 7-arylidenenaltrexones with !l, Kand O opioid receptors. From this work it is concluded tha!: 1. The internal ...
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(Sociedad de Neurología, Psiquiatría y Neurocirugía, 1994)El comportamiento criminal (CC) es analizado a través de una aproximación interdisciplinaria multinivel. La agresión es la base del CCcuando conduce a interacciones no adaptativas con el medio. Proponemos que los ...
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(Bentham Science Publishers Ltd., 2004-11-25)The recent description of the crystal structures of rat MAO-A and human MAO-B provides an unprecedented framework to elucidate the mechanisms underlying the selective interactions between these proteins and their ligands. ...
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Bond Fukui Functions As Descriptor of the Electron Density Reorganization in pi Conjugated Systems (AMER CHEMICAL SOC, 2012-01-06)The bond Fukui function is introduced and tested as a new reactivity index capable of predicting the evolution of bond breaking and formation processes during an organic reaction involving pi conjugated systems. As an ...
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(Elsevier Ltd., 2004-05-26)Abstract—Twenty-nine arylisopropylamines, substituted at the b-position of their side chain by an oxo, hydroxy, or methoxy group, were evaluated in vitro as MAO-A and MAO-B inhibitors. The oxo derivatives (‘cathinones’) ...
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(Elsevier Science Ltd., 2003-03-12)Abstract—A simple method for the preparation of homochiral ring-substituted 1-aryl-2-aminopropanones 2 (‘cathinones’) is described, involving initial Friedel–Crafts acylation of aromatics with (S)- or (R)-N-trifluoroacetylalanyl ...
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(American Chemical Society, 1981-11-20)The seeds of Sophora mcrcrocarpo Sm. (Fabaceae) are a promising source of edible oil (l), and contain matrine, N-methylcytisine and baptifoline (2). Glc analyses of the leaves of this species suggested that matrine is ...
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(The American Society for Pharmacology and Experimental Therapeutics, 2007-02-28)2,5-Dimethoxy-4-substituted phenylisopropylamines and phenethylamines are 5-hydroxytryptamine (serotonin) (5-HT)2A/2C agonists. The former are partial to full agonists, whereas the latter are partial to weak agonists. ...
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(Springer, 2007-12-05)Abstract Santiago de Chile is a big city with huge air quality problems, being one of the most polluted cities in the world. This is aggravated during winter by the topography and meteorological conditions of the city. ...
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(American Chemical Society, 1987-02-09)
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(Elsevier Ltd., 2008-10-25)This study reports the comparative molecular modeling, docking and dynamic simulations of human a9a10 nicotinic acetylcholine receptors complexed with acetylcholine, nicotine and a-conotoxin RgIA, using as templates the ...
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(University of Hawai'i Press, 2000-04)Sophora comprises 45-50 species of worldwide distribution, but no general proposal as to the evolution of this group has been put forth. We used cladistic relationships of the quinolizidine alkaloids (matrine, ...
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(Editorial Advisory Board, 1982-07-12)
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(ELsevier Science, Inc., 1998-12-18)The selectivity of 3-nitrosoboldine and different halogenated derivatives of boldine (3-bromoboldine, 3,8-dibromoboldine and 3-chloroboldine) for ai - adrenoceptor subtypes was studied by examining [3H]-prazosin ...
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(Stockton Press, 1996-09-09)1 The selectivity of action of boldine and the related aporphine alkaloids, predicentrine (9-0- methylboldine) and glaucine (2,9-0-dimethylboldine) on oel-adrenoceptor subtypes was studied by examining [3H]-prazosin ...
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(Elsevier Science B.V., 2002-11-20)(S)-(1)-boldine, an aporphine alkaloid displaying antioxidative and dopaminergic properties, and six of its derivatives (glaucine, 3-bromoboldine, 3-iodoboldine, 8-aminoboldine, 8-nitrosoboldine and 2,9-O,O9 -dipivaloylboldine) ...
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(Springer, 2011-11-19)The present work presents a measurement uncertainty evaluation according to Guide to the Expression of Uncertainty in Measurement (GUM) of the concentration of the cations K? and Li? and anions NO3 -2 and SO4 -2 in ...
