(3) the richness pattern is independent of the endemism pattern because the richest areas are the tropical humid lowlands, and (5) Mexico presents several insular intracontinental patterns, which are the product of the disjunct and heterogeneus distribution of xeric and…

Knowledge representation models are very important in the design of intelligent agents because they provide with mechanisms to manage beliefs and their dynamics. In this paper, we propose the use of AnsProlog* as a knowledge representation language, and develop a…

As part of its national obligations, ONR must ensure US world leadership in those unique technology areas that insure naval superiority. ONR accomplishes this mission through research, recruitment and education, maintaining an adequate base of talent, and sustaining critical infrastructure…

This thesis studies the notion of knowledge in business firms, and in particular the concept of knowledge mobilization, understood as the mechanisms used by organizations to apply, transfer and retain knowledge about cause and effect relationships. As a theoretical framework,…

Sixty teachers from the Ottawa-Carleton region of Canada were surveyed to measure their knowledge of child maltreatment risk indicators, knowledge of reporting procedures, and the frequency of reporting sexual abuse, physical abuse, and neglect. Correlations did not support the hypothesis…

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…

2008

In this work we analyze the problem of knowledge representation in a collaborative multi-agent system where agents can obtain new information from others through communication. Namely, we analyze several approaches of belief revision in multi-agent systems. We will describe different…

Although our biological knowledge regarding cactus species is thorough in many areas, only in recent years have ecologists addressed their demographic behavior. Here we attempt a first review of the present knowledge on cactus demography, including an analysis of the…

Décadas de uso inadecuado
de los recursos naturales en Australia han llevado a la extinción de numerosas especies autóctonas. Aprendiendo de sus propios errores,
se han inicido recientemente diferentes proyectos de conservación en los que participan diversos agentes interesados. La…