This is attributed to the bridged structure of the polymer which prevents any independant movement of the polar side groups, in accordance with the hypothesis of Deutsch, Hoff and Reddish concerning the molecular mechanism of the β absorption bands.Brouckère, L. De...
Les problèmes fondamentaux de la géodésie et les solutions qui y ont été apportées grâce à l'observation des satellites artificiels的书评 ··· ( 全部0 条 ) 论坛 ··· 在这本书的论坛里发言 + 加入购书单 ...
Les dérivés sulfamidés du tétraméthyle-méthane: I Le tétrasulfamidométhyle-, I'oxyméthyle-trisulfamidométhyle-, le dioxyméthyle-disulfamidométhyle- et le trioxyméthyle-sulfamidométhyle-méthane J. Hoste, F. Govaert Article first published online: 1 SEP 2010 DOI: 10.1002/bscb....
Particularly, the possible effects of solidification macro and mesosegregations have been quantified in massive cylinders with sizes close to the size of an ingot. Secondly, experimental validations have been performed for homogeneous cylindrical specimen (40CrMnMo8 steel) and for a chemically ...
On the one hand, similar changes touching the social and financial systems operate a convergence of family policies in Europe. On the other hand, the European Union has progessively taken charge of the issue of family support, which has brought about an harmonisation of national family policies...
Infrared spectra of ethyl α-aminoacetates show three bands in the carbonyl region. Solvent effects show that this is not due to Fermi resonance. These spectra can be interpreted using a model that considers the interactions between the nitrogen lone pair and the carbonyl group. The existence of...
In this case, the results of different irradiations show OO-cisto be the preferred rotamer. Moreover, this method is able to give indications of the life time on different sites. We also give an evaluation of the limits of the method.S. Combrisson...
Objectives The primary objective of this study was to determine the proportion of cases of gastro-enteritis due to rotavirus in children under 5 years of age consulting community physicians. A secondary objective was to compare the clinical characteristics of children with and without rotavirus acute ...
The objective of this doctoral thesis is to put forth the role of psychology in the fluctuations of production, redistribution and inequalities. Our work is centered on two axes : i) the importance of psychology with regards to inequalities in determining individual beliefs about the role of ...
NA;Memoir upon the Real Effects which may be produced by Tobacco, upon the health of the workmen engaged in its various preparations.By Messrs. Parent Duchatelet and D'Arcet.NA;The American Journal of the Medical Sciences