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Bonding and molecular environment effects on photoorientation in epoxy-based polymers having azobenzene units
(Elsevier, 2009-03)
An azo prepolymer (TAZ) was synthesized by reaction between Disperse Orange 3 (DO3)
and diglycidyl ether of bisphenol A (DGEBA). The resulting TAZ was blended with DGEBA
and two different monoamines, one aliphatic and ...
FEM Subsystem Replacement Techniques for Strength Problems in Variable Geometry Trusses
(Elsevier, 2007-12-01)
This work presents the application of a procedure for replacing FEM subsystems with a high number of dofs (possibility of including mobile internal parts) using equivalent parametric macroelements (EPMs) with a much reduced ...
A Metamodeling Technique for Variable Geometry Trusses Design via Equivalent Parametric Macroelements
(ASME, 2009-09-03)
A metamodeling methodology is applied to reduce the large computational cost required in the design of variable geometry trusses (VGTs). Using this methodology, submodels of finite elements within a complete FE model of ...
Ab initio study of subsurface diffusion of Cu on the H-passivated Si(001) surface
(American Physical Society, 2009-10-12)
In this paper we use density-functional theory calculations to analyze both the stability and diffusion of Cu adatoms near and on the H-passivated Si 001 surface. Two different Cu sources are considered: depositing Cu ...
El devenir del trabajo social en clave de género
(Servicio Central de Publicaciones del Gobierno Vasco, 2009)
Este artículo pretende analizar el camino recorrido por el Trabajo Social en España desde una perspectiva de género. La reflexión se articula a partir de uno de los elementos que perdura y se mantiene en la profesión a lo ...
Biodiversity of groundwater oligochaetes from a karst unit in northern Iberian Peninsula: ranking subterranean sites for conservation management
(Springer, 2008-03-05)
El presente estudio sugiere que la unidad kárstica de Santa Eufemia-Ereñozar en el norte de la Península Ibérica es un hotspot de biodiversidad para los oligoquetos de aguas subterráneas, debido a (1) la presencia de un ...
Factors controlling suspended sediment yield during runoff events in small headwater catchments of the Basque Country
(Elsevier, 2007-09-01)
For the first time in the Basque Country, turbidity (NTU), discharge (l/s) and precipitation (mm) have been continuously monitored in the gauging stations located at the outlet of three catchments (Aixola, Barrendiola and ...
Cloning, purification and characterization of two components of phenol hydroxylase from Rhodococcus erythropolis UPV-1
(Springer, 2009-09-29)
Phenol hydroxylase that catalyzes the conversion of phenol to catechol in Rhodococcus erythropolis UPV-1 was identified as a two-component flavin-dependent monooxygenase. The two proteins are encoded by the genes pheA1 and ...
La dictadura del formato en las noticias de televisión
(Laboratorio de Tecnologías de la Información y Nuevos Análisis de Comunicación Social, 2002)
La búsqueda de formatos que garanticen el éxito de audiencia en la programación televisiva ha caracterizado a las televisiones en las últimas décadas, pero se ha mantenido alejada de los informativos diarios. Estos han ...
Implicación escolar de estudiantes de Secundaria: la influencia de la resiliencia, el autoconcepto y el apoyo social percibido
(UNED, 20017-11-0)
El objetivo de este estudio fue doble: en primer lugar, analizar las relaciones entre la implicación escolar y la resiliencia, el autoconcepto y el apoyo social percibido. En segundo lugar, determinar variables predictoras ...