The role of communities associated to a substrate as fundamental components of an aquatic system has been recognized by many authors. Although periphyton has been considered of great importance in shallow lakes, its inclusion in different ecological models has been…

Over the last several years, multidimensional data modeling has had several proposals for its formalisation; on the other hand, the incorporation of fuzzy logic in databases has increased the need to represent uncertainty.
However, to our knowledge, so far projects…

Age-related transformations make the elderly more susceptible to medicine adverse events, and knowledge of factors associated with drug use are essential to develop national strategies of prescription. To estimate the prevalence of use of antihypertensive and hypoglycemic agents and investigate…

Searching for information in databases or on the world wide web to enhance our knowledge has become an everyday task. The internet is a major source of information for education. When we want to make new material available in digital…

Although current literature on learning styles shows that matching a teacher’s instructional style with the learning styles of students affects performance in a classroom environment, little is known about the influence of learning styles in online interaction. The paper argues…

A pharmaceutical care program for dyslipidemic patients was designed, implemented, and assessed. The study was conducted during 32 weeks, at three Primary Health Care Centers. One hundred and forty two patients were selected. These patients were randomly assigned to intervention…

Focusing on the Ontology Change problem, we consider an environment where Description Logics (DLs) are the logical formalization to express knowledge bases, and the integration of distributed ontologies is developed under new extensions and modifications of the Belief Revision theories…

Los estudios de esta tesis doctoral muestran la relación estrecha que existe en la Fenomenología del Espíritu entre el concepto hegeliano de experiencia, su concepción del absoluto y el impacto que tiene en ambos el desafío del escepticismo. La tesis…

This paper presents a proposal for an architecture that integrates knowledge discovery systems (automatic acquisition) and knowledge based systems (experts systems). This work formulates considerations over the viability of the implementation of this architecture according to the advance of the…

La nanotecnología aplicada a la farmacoterapia tiene un gran potencial para el cuidado de la salud, pero para tener éxito con esta iniciativa estructuralmente multifacética es necesario el estudio minucioso de los desafíos que encierra, del conocimiento involucrado con el…