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Mostrando ítems 61-70 de 146
Artículo
La ética del periodista en la infoesfera digital
(Universidad de Lima, 2013)
En este artículo se plantean los nuevos retos a los que se enfrenta la actividad informativa en la era de internet, caracterizada por la horizontalidad y transversalidad de los modelos comunicativos entre medios y ciudadanos. ...
Libro
Familias en riesgo que reciben intervenciones de preservación familiar: Perfil psicosocial de una muestra de los Servicios Sociales Comunitarios de la Diputación de Huelva
(Diputación de Huelva, Servicio de Publicaciones, 2013)
Artículo
Design of a Soil Cutting Resistance Sensor for Application in Site-Specific Tillage
(MDPI - Open Access Publishing, 2013)
One objective of precision agriculture is to provide accurate information about soil and crop properties to optimize the management of agricultural inputs to meet site-specific needs. This paper describes the development ...
Artículo
Sertularia marginata (Cnidaria: Hydrozoa) in the Mediterranean: an alien species in expansion?
(Hellenic Centre for Marine Research (HCMR), 2013)
Mature and dense populations of the tropical hydroid species Sertulariamarginata were detected in the Alboran Sea (Western Mediterranean) and in the Atlantic coast of the Strait of Gibraltar. Until now, it had only been ...
Artículo
Asymmetric organocatalytic Strecker-type reactions of aliphatic N,N-dialkylhydrazones
(Royal Society of Chemistry (Great Britain), 2013)
The enantioselective organocatalytic Strecker-type reaction of aliphatic N,N-dialkylhydrazones is presented. Using trimethylsilyl cyanide (TMSCN) as the cyanide source, the reaction can be efficiently catalyzed by a ...
Artículo
Metastable Soft Magnetic Materials Produced by Mechanical Alloying: Analysis Using an Equivalent Time Approach
(Springer Nature, 2013)
Mechanical alloying, a ball milling technique where heterogeneous starting powders are homogenized and alloyed, has become a versatile technique for the production of metastable microstructures: nanocrystalline and/or ...
Artículo
Un Marco Metodológico para Evaluar Técnicas y Herramientas para Pruebas del Software
(ATI (Asociación de Técnicos de Informática), 2013)
Actualmente existe una necesidad real en el sector industrial de disponer de conocimiento para decidir qué técnicas de pruebas deben usarse según los objetivos de pruebas, y para conocer cómo de usables (efectivas, eficientes ...
Artículo
High- and low-energy x-ray photoelectron techniques for compositional depth profiles: destructive versus non-destructive methods
(IOP Science, 2013-01-17)
Hard x-ray photoelectron spectroscopy (HAXPES), angle-resolved x-ray photoelectron spectroscopy (ARXPS) and x-ray photoelectron spectroscopy (XPS) with simultaneous Ar+ bombardment are used to obtain chemical information ...
Artículo
Selective carbohydrate-lectin interactions in covalent graphene- and SWCNT-based molecular recognition systems
(Royal Society of Chemistry, 2013)
Two new protein recognition systems have been prepared by covalent functionalization of few-layer graphene and SWCNTs with α-D-mannosyl dendrons. A glycodendron, bearing three mannose moieties on the periphery for effective ...
Artículo
3-Col problem modelling using simple kernel P systems
(Taylor and Francis, 2013)
This paper presents the newly introduced class of (simple) kernel P systems ((s)kP systems) and investigates through a 3-colouring problem case study the expressive power and efficiency of kernel P systems. It describes ...