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Quantum size effects of Pb overlayers at high coverages.
(Elsevier, 2007-07-18)
We have studied Pb thin films as a function of the thickness up to 60 monolayers (MLs) using ab initio first principles and model calculations. Magic heights corresponding to a modulated oscillatory pattern of the energy ...
Restored quantum size effects of Pb overlayers at high coverages
(APS, 2007-04-10)
Abnormally large stability of Pb nanostructures grown on metallic or semiconductor substrates has been observed even for heights of about 30 monolayers. Using both density-functional theory calculations and analytical ...
Phenotypic and genotypic characterization of Streptococcus pyogenes isolates displaying the MLSB phenotype of macrolide resistance in Spain, 1999 to 2005
(2007-01-22)
The aim of this study was to describe the genetic characteristics of Streptococcus pyogenes showing the MLSB phenotype of macrolide resistance from 1999 to 2005 in Spain and to highlight the substantial increase in these ...
Positron lifetime calculation of the elements of the periodic table
(IOP, 2007-04-10)
Theoretical positron lifetime values have been calculated systematically for most of the elements of the periodic table. Self-consistent and non-self-consistent schemes have been used for the calculation of the electronic ...
Relationship between vegetation diversity and soil functional diversity in native mixed-oak forests
(Elsevier, 2007-05-22)
Most studies on the interactions between aboveground vegetation and belowground soil diversity have been carried out in microcosms or manipulated field plots. In the current study, we investigated the relationship between ...
Un índice hidrogeomorfológico (IHG) para la evaluación del estado ecológico de sistemas fluviales
(Universidad de Zaragoza, 2007)
La dinamica fluvial es la clave no solo del funcionamiento, sino tambien del valor ecologico, paisajistico y ambiental de los sistemas fluviales. Si se quiere conservar un rio como ecosistema y como corredor ambiental en ...
Synthesis and characterization of epoxy polymers containing azobenzene groups that exhibit optical birefringence
(2007-12-03)
A push–pull azo dye (DO3) was used as photosensitive substance to satisfactorily synthesize new epoxy polymers containing azo groups covalently linked. Three different amines BA, TA and MXDA were used as hardeners. Materials ...
Los orígenes del sistema hospitalario moderno en Vizcaya: el hospital de Basurto en Bilbao
(Servicio Editorial de la Universidad del País Vasco/Euskal Herriko Unibertsitatearen Argitalpen Zerbitzua, 2007)
Este capítulo trata de abordar los orígenes y características del sistema hospitalario moderno en la Villa de Bilbao durante el ciclo industrial (1876-1975). El nuevo hospital bilbaíno de Basurto se inauguró en 1908 tras ...