The mechanism of activated nucleophilic substitution in the aromatic series (S. N. A.*) can be integrated in the general scheme of S. N. synchronous mechanisms. The relative order of mobilities of the halogens in S. N. A. * type reactions, wich varies with the nucleophilic activity of ...
In this way, the Rennes manuscript has found its place in the medieval artistic production and in a larger debate; the French Légende Dorée has been re-evaluated in the medieval societydoi:10.4049/jimmunol.1102515Hume, AGrimes, SBoyce, JBibliogr...
图书Les problèmes fondamentaux de la géodésie et les solutions qui y ont été apportées grâce à l'observation des satellites artificiels 介绍、书评、论坛及推荐
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One of its most common risk factors is xeroderma pigmentosum (XP), an autosomal recessive disease characterized by defective cellular DNA repair, and hypersensitivity to ultraviolet radiation. Case report We report a case of XP in a 7-year-old black African boy, revealed by squamous cell ...
En este trabajo se realiza una revisión de las contribuciones realizadas en el ámbito de la psicología social al estudio de la satisfacción de los usuarios y consumidores. En concreto, se constata que la investigación se ha realizado predominantemente desde acercamientos cognitivos (confirmaci...
– Introduction of a methyl group in position 4 (angular position) has a deshielding effect on the proton located on carbon 5 (opposite angular position). – The main results are summarized in table I and figure 1.Martin, R. H.Université Libre de Bruxelles, Service de Chimie Organique, ...
E. Enabling to find a solution in every case. The most powefull complete solving methods for CSP use a search mecanism with forward checking consistency, i. E. In filtering incompatible values in not yet instantiated domains when a new instantiation is tested. However, these methods are ...
International criminal law as applied by international criminal jurisdictions (International Criminal Tribunals for former Yugoslavia and Rwanda and International Criminal Court) cannot escape the obligation to respect the legality of penalties, even more so as the sole penalty applicable at the ...
The latest part of this paper deals with the construction ofP–Ylateral reaction curves and the variation of the horizontal subgrade modulus with the number of cycles.Key words: pile, centrifuge, sand, cyclic loading, density, roughness.Ali Bouafiacanadian geotechnical journal...