Humans have always been intrigued by their ability to reason. We have constantly attempted to emulate this process, trying almost everything, from physiological explanations, to sociological accounts. The approach with possibly the longest tradition conceives this process as a mere…

In this paper a methodology for accesing scientific data repositories on data grids is proposed. This methodology is based on ontology specification and knowledge representation. The concept of Knowledge Perspective is introduced, as the action of applying particular scientific conjectures…

Collaborative systems are becoming a widely used tool particularly among professional communities and research groups. They provide a suitable context for distributed people working on the same subject to concentrate their work in a shared place to which everyone has…

No contexto econômico atual, onde a competição entre as empresas está cada vez mais relacionada à sua capacidade de transformar informação em conhecimento e este último em decisões e ações de negócio, o Data Warehouse (DW) exerce papel fundamental como…

Me propongo analizar y discutir algunos resultados de una investigación etnográfica desarrollada en comunidades Mbya Guaraníes (Misiones, Argentina) acerca de las representaciones y prácticas relacionadas con la crianza y el desarrollo infantil.
En este trabajo caracterizo las categorías, representaciones y…

About fifteen years ago, the Electronic Engineering Department of the National Technological University of Buenos Aires was structured grouping the curricula in Knowledge Areas. One of them was the Digital Area. It was assumed that its contents should be changing…

Mediante técnicas paleoparasitológicas cuantitativas y cualitativas se examinaron los sedimentos de la cavidad pélvica de dos esqueletos humanos. Los individuos fueron hallados en dos enterratorios asociados al asentamiento español de fines de siglo XVI "Nombre de Jesús" (Cabo Vírgenes, provincia…

Mediante técnicas paleoparasitológicas cuantitativas y cualitativas se examinaron los sedimentos de la cavidad pélvica de dos esqueletos humanos. Los individuos fueron hallados en dos enterratorios asociados al asentamiento español de fines de siglo XVI "Nombre de Jesús" (Cabo Vírgenes, provincia…

Since huge amounts of spatial data can be easily collected from various applications, ranging from remote sensing technology to geographical information system, the extraction and comprehension of spatial knowledge is a more and more important task. Many excellent studies on…

Conocida como ácido ascórbico, la Vitamina C es una vitamina que interviene en múltiples procesos, tales como: formación de hormonas, neurotransmisores, carnitina, conversión del colesterol en ácidos biliares, incremento en la absorción de hierro, además de su fundamental intervención en…