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…

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 republicanismo de CICERÓN se sustenta sobre tres pilares: sobre el carácter retórico o probable del saber político; sobre la histórica constitución mixta, cuyo valor ha sido confirmado por la experiencia romana; y sobre la universal ley natural de origen…

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…

Web-based learning environments are becoming increasingly popular in higher education. One of the most important web-learning resources is the virtual laboratory (VL), which gives students an easy way for training and learning through the Internet. Moreover, on-line collaborative communication represents…

La superación del juridicismo y de la aplicación mecánica de las normas reclama un nuevo perfil de juez que no sólo atienda al conocimiento y habilidades jurídicas sino también a consideraciones éticas. En este marco, el autor aborda el tema…

In big companies, managerial activities and organizational boundaries will over time hide most unevenly developed skill and knowledge distribution patterns; studying the organizations with the means of modern applied physics is thus quite difficult. People are forced to communicate along…

Indígenas y campesinos de diversas localidades mexicanas, fundamentalmente de la Sierra Norte de Puebla, se congregan durante cinco años en las instalaciones del Cesder, en Zautla, alrededor de una Licenciatura en Desarrollo Rural que les permitirá, una vez obtenido el…

When training hidden-Markov-model-based part-of-speech (PoS) taggers involved in machine translation systems in an unsupervised manner the use of target-language information has proven to give better results than the standard Baum-Welch algorithm. The target-language-driven training algorithm proceeds by translating every possible…

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:…