AbstractDue to aspect-oriented mechanisms explosion, their concepts arrive to distributed systems tackling concepts as security, persistence, or synchronization, especially in middleware approaches. Regarding distributed databases, the research has been focused mainly on object-oriented databases. Based on the great impact of…

El crecimiento continuo de la Internet ha permitido a las personas, alrededor de todo mundo, realizar transacciones en línea, buscar información o navegar usando el explorador de la Web. A medida que más gente se siente cómoda usando los exploradores…

The term “Federated Databases” refers to the data integration of distributed, autonomous and heterogeneous databases. However, a federation can also include information systems, not only databases. When integrating data, several issues must be addressed. Here, we focus on the problem…

The main objective of this paper centers on reviewing the evolution of Decision Support System´s (DSS) architectures, particularly as they apply to natural resources. Today it is difficult to conceive the existence of a rural planning automated system that doesn't…

Se dan argumentos a favor de que las colecciones de las combinaciones de palabras significativas en los diccionarios electrónicos modernos del uso general se deben extender en lo máximo posible. Igor Mel'cuk clasifica las combinaciones de palabras en frasemas completos,…

AbstractThis study performs a comprehensive analysis of the effect of different environmental, demographic and vehicle variables on the severity of two-vehicle crashes. The limitations associated with previous studies have been addressed by using a large crash database, properly defining the…

En este trabajo hemos estudiado algunas paráfrasis contenidas en un recurso lingüístico llamado badele.3000, una base de datos que agrupa los 3.600 sustantivos más frecuentes del español, así como más de 2.800 verbos de uso habitual. Su combinación restringida da…

AbstractSince the emergence of public-private partnerships (PPPs) in the 1980s, there has been a structural change in the way countries now finance and provide public infrastructure. Although national governments apparently encourage PPPs, and many have succeeded, some others have failed.…

Este trabajo describe un modelo numérico implementado en el método de los elementos finitos (Hughes, 2000), el cual permite simular el comportamiento elástico del concreto reforzado con fibras cortas de dirección aleatoria. En estructuras hechas de dicho material cada punto…

This paper outlines the development of a power quality monitoring system. The system is aimed at assessing power quality and detecting critical areas throughout at distribution system. Such system integrates a hardware system and a software processing tool developed in…