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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…

This research will thoroughly document the experiences of a small number of 5th grade children in an elementary school computer laboratory, using LOGO, an advanced computer language designed for children. Four groups of four children will be taught a 10-week…

En este trabajo procuramos reflexionar sobre las posibilidades
que le brinda el ciberespacio a la Universidad para que difunda, a través de
las bibliotecas digitales, el producto científico que germina dentro de sus
paredes. Para ello, tomamos en consideración algunos…

Workers and employees are increasingly exposed in the workplace to chemical compounds and substances that are potentially toxic; for most of these compounds, no information exist regarding effects on human health. As one of the main employment generation sources, Small…

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ABSTRACT: Micronutrients availability is na important constraint for crops in the Cerrado region, and its correction is always needed to obtaining economic yields. Old and new nutritional problems came with the agriculture expansion in Cerrado. Although being crucial for increasing…

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Se presentan los aspectos técnicos, científicos y culturales más sobresalientes desarrollados desde el año 2001 en relación con las investigaciones del Proyecto Fonelas. Esta investigación tiene su eje en el conocimiento integral de los registros del yacimiento de grandes mamíferos…

Processes of spatial mobility among the Mbya are of interest in anthropological and ethnobiological studies, as these processes are related to transformations in the landscape and the environment. Despite this, ethnographic literature usually focuses itself on the mobility of Guaraní…