Trypanosoma cruzi isolates from 23 acute chagasic patients from localities of Western Venezuela (state
of Barinas) where Chagas’ disease is endemic were typed using ribosomal and mini-exon gene markers.
Results showed that isolates of the two major phylogenetic lineages, T.…

La importancia del linaje Briceño en el devenir histórico venezolano y merideño en particular, desde la época colonial hasta
nuestros días, trasciende la mera actuación de una familia de la élite. Considerando así la necesidad del conocimiento de la…

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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The goal of the work reported here is to capture the commonsense knowledge of non-expert human contributors. Achieving this goal will enable more intelligent human-computer interfaces and pave the way for computers to reason about our world. In the domain…

Data quality issues have taken on increasing importance in recent years. In our research, we have discovered that many “data quality” problems are actually “data misinterpretation” problems – that is, problems with data semantics. In this paper, we first illustrate…

RESUMO: Folhas e caules, com sintomas de antracnose, foram coletados de populações nativas de Stylosanthes spp., de 1997 a 2000, em localidades de Minas Gerais, Goiás e Bahia, para avaliar a variabilidade patogenica do agente causal (Colletotrichum gloeosporioides). Duzentos e…

This thesis examines the evolution of Internet based knowledge networks (e-knowledge networks) in the domain of sustainable development. The objective of this thesis is to use an engineering systems approach to understand knowledge networks, identify the barriers to their sustainability…

A knowledge of the shape of the cornea is of major importance for the planning and monitoring of surgery, and for the correct diagnosis of corneal diseases. Many authors have studied the geometry of the second corneal surface in the…

This paper presents an intelligent, hybrid system for stamping process planning in progressive die design. The system combines the flexibility of blackboard architecture with case-based reasoning. The hybrid system has the advantage that it can use past knowledge and experience…