Work on Expert Systems has received extensive attention recently, prompting growing interest in a range of environments. Much has been made of the basic concept and the rule-based system approach typically used to construct the programs. Perhaps this is a…

In healthy cells, cytochrome c (cyt c) acts as an electron transport protein peripherally bound to the inner mitochondrial membrane lipid cardiolipin, but it has an important role in apoptosis - upon apoptotic stimuli, it is released from the mitochondria…

Este trabajo propone el análisis histórico de un grupo de autobiografías de enfermeras cuyas dramáticas experiencias en el ejercicio de su profesión durante la Guerra Civil Americana ayudaron a configurar la profesión de enfermería. Las autobiografías tienen un importante componente…

This paper descries D-SCRIPT, a language for representing knowledge in artificial intelligence programs. D-SCRIPT contains a powerful formalism for descriptions, which permits the representation of statements that are problematical for other systems. Particular attention is paid to problems of opaque…

The construction of expert problem-solving systems requires the development of techniques for using modular representations of knowledge without encountering combinatorial explosions in the solution effort. This report describes an approach to dealing with this problem based on making some knowledge…

La sociedad del conocimiento actual demanda que el ser humano mantenga una actitud de continuo aprendizaje. Pues la complejidad del aprendizaje
universitario comprende una red de elementos organizados con base en los principios: dialógico, recursivo y hologramático. El presente artículo

This paper introduces a model of spatial cognition to describe the states of partial knowledge that people have about the spatial structure of a large-scale environment. Spatial knowledge has several different representations, each of which captures one aspect of the…

Este trabajo es el resultado de la sistematización del proceso dirigido a la producción colectiva de textos, desarrollado con los miembros de los pueblos barí y yukpa, en el marco de un proyecto de la División Regional de Asuntos Indígenas…

Freud's theory of jokes explains how they overcome the mental "censors" that make it hard for us to think "forbidden" thoughts. But his theory did not work so well for humorous nonsense as for other comical subjects. In this essay…

We propose a vision of the structure of knowledge and processes of learning based upon the particularity of experience. Highly specific cognitive structures are constructed through activities in limited domains of experience. For new domains, new cognitive structures develop from…