Spanish Abstract: El artículo presenta el uso de técnicas cartográficas de scripting para la visualización de mapas topográficos y geomorfológicos por R y GMT. Los mapas temáticos pretenden analizar la región del Perú con un enfoque específico en su geomorfología: pendiente, aspecto,...

This paper estimates the technical efficiency of a set of Argentinean firms in the electric distribution sector for the period 1994-2001. The efficiency measurement involves the application of two methods: one non-parametric and the other parametric. The first one is DEA and the second one is...

The need to align the strategies of the organization with the new information technologies had been imposed by the development of these last. One of the approaches that makes it possible such alienation is the Enterprise Architecture Approach (AE). To implement an AE project, it is necessary to...

The Black-Scholes valuation model for European options is widely used in the stock markets due to its easy implementation. However, the model is not accurate for different assets whose dynamics do not follow those of a lognormal distribution, so it is necessary to investigate new distributions...

In some circumstances a decision maker, expert, in a group decision making problem cannot express his/her preferences with a unique linguistic fuzzy preference because he/she is dubious into some preferences. In this paper, we present a consensus model for group decision making problems with...

All the areas within the company contact their customers, some directly and others from within the organization. CRM strategies, in conjunction with the R & D area, work on improving products and services to meet customer expectations. But could be missing valuable information of customers...

The connexion between statistical mechanics basis of Gibbs and Shannon's information theory allows the application of Gibbs's formulas to the resolution of Simplex's problem by Shannon's Maximum Entropy Principle. The method, based in the minimal information that the objective of Simplex, in his...

Esta investigación analiza las desigualdades de las intensidades energéticas entre países de la OCDE, su evolución y sus causas. Estas intensidades constituyen uno de los principales factores determinantes de las emisiones per cápita y, por tanto, de las diferencias que se dan entre países...

En este artículo utilizamos un mecanismo de interacción social directa -en contraste con las interacciones a través del mercado-; para intentar explicar cómo las interacciones sociales afectan las decisiones sobre capital humano de los individuos y su posible impacto sobre la distribución...