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Now showing items 721-730 of 783
Influence of carrier phase on flicker measurement for rectangular voltage fluctuations
(IEEE, 2011-11-01)
This paper presents an analysis of the influence of the phase relationship between the fundamental frequency and the rectangular voltage fluctuation on flicker measurements made by the International Electrotechnical ...
Morphological study and photo-addressing in poly(styrene-b-butadiene-b-styrene) block copolymers with azobenzene groups and polystyrene matrix: influence of chemical bonding
(2011-01-25)
The main goal of this work was the synthesis of new azo-functionalized block copolymers
(BCP) from epoxidized poly(styrene-b-butadiene-b-styrene) modified with azobenzene
groups by one-step facile reaction between the ...
La ciencia en Internet y en otros soportes interactivos
(Biblioteca Nueva : Agencia Española de Cooperación Internacional para el Desarrollo : Organización de Estados Iberoamericanos para la Educación, la Ciencia y la Cultura (OEI), 2011)
Este capítulo del libro explica cómo ha afectado Internet a los científicos y las revistas científicas, la irrupción de Internet en instituciones, empresas científicas y sus gabinetes de comunicación, el periodismo científico ...
Reversible optical storage properties of nanostructured epoxy-based thermosets modified with azobenzene units
(ACS, 2011-11-22)
Azo-containing polymers are of particular interest in the design of materials for applications in optical recording. The aim of this contribution was the synthesis and characterization of optically active epoxy-based ...
Rehabilitation of masonry arches with compatible advanced composite material
(Elsevier, 2011-12-01)
Stone masonry arches are structures of great functional and architectural importance as they may be found in a large number of constructions that are mainly historic buildings. Although relatively solid structures, time ...
Consules populares
(Cambridge University Press, 2011)
In the Late Roman Republic politicians labelled as populares were traditionally tribunes of the plebs. In our sources we found references to the great populares leaders Tiberius and Caius Sempronius Gracchus, Lucius Appuleius ...
Nanostructuration of self-assembled poly(styrene-b-isoprene-b-styrene) block copolymer thin films in a highly oriented pyrolytic graphite substrate
(Elsevier, 2011-01-03)
Highly oriented pyrolitic graphite (HOPG) is a useful substrate to visualize epitaxial formation due to its crystallographic structure. The morphology of a poly(styrene-b-isoprene-b-styrene) block copolymer thin film on a ...
L’educació de les dones entre la Il·lustració i el liberalisme: la Societat Econòmica de València (1776-1874)
(Societat d'Història de l'Educació dels Països de Llengua Catalana, 2011)
Este artículo pretende explorar cómo cambiaron los modelos de feminidad entre la Ilustración y la construcción del Estado liberal a través de unas corporaciones que fueron testigos de ese largo periodo: las reales sociedades ...
In vitro activities of retapamulin and 16 other antimicrobial agents against recently obtained Streptococcus pyogenes isolates
(ASM, 2011-04-28)
Retapamulin in vitro activity against 400 Streptococcus pyogenes clinical isolates obtained from skin, pharynx, ear fluid, and blood samples recovered from 2007 to 2009 was studied. The isolates belonged to 26 different ...
Epidemiological and molecular analysis of Streptococcus pyogenes isolates causing invasive disease in Spain (1998-2009): comparison with non-invasive isolates
(Springer, 2011-10-01)
The incidence, clinical manifestations, and circulating clones involved in Streptococcus pyogenes invasive disease was analyzed in two regions of Spain between 1998 and 2009. The annual average incidence of invasive disease ...