Issues related to maternal mortality have generated a lot of empirical and theoretical information. However, despite the amount of work published on the topic, maternal mortality continues to occur at high rates and solutions to the problem are still not…

Los Objetivos de Desarrollo del Milenio, y dentro de éstos las Metas del Milenio, constituyen un plan operativo para la consecución de logros básicos dirigidos al alcance de la salud, la erradicación de la pobreza y el cumplimiento de los…

This paper describes the development of an image retrieval
system that combines probabilistic and ontological information1. The
process is divided in two different stages: indexing and retrieval. Three
information flows have been created with different kind of information
each one:…

In this paper, a restricted domain question answering (QA) system is described. The design architecture of this QA system and the features that allow the adaptation of the QA system to the medical domain are also presented. The advantages of…

El propósito de este artículo es ofrecer una primera aproximación crítica a
la contribución de Hayden White a la teoría del conocimiento histórico. En la
primera parte, se presentan aquellos elementos de esa contribución que se consideran más genuinos y…

This work presents the main theories and models formulated with the purpose of offering a global overview on the acquisition of knowledge and skills involved in the initial development of expert competence. Setting from this background, we developed an empirical…

We develop a theory to explain the transition from stagnation to modern growth. We focus on the forces that shaped the evolution of total factor productivity in agriculture and manufacturing across history. More specifically, we build a multisector model of…

El proceso de informatizar el conocimiento necesario para conservar la biodiversidad de un país o región requiere de varias etapas de
desarrollo de sistemas de información. Típicamente se inicia con el manejo de datos en formatos analógicos y se continúa…

La aplicación de técnicas de biología molecular al estudio de la microbiología del suelo ha representado un gran avance en el conocimiento de
estos ecosistemas. El reconocimiento de la presencia de una gran diversidad de microorganismos en suelos, que resultaban…

The extension to new languages is a well known bottleneck for rule-based systems. Considerable human effort, which typically consists in re-writing from scratch huge amounts of rules, is in fact required to transfer the knowledge available to the system from…