Los moluscos son muy apreciados como alimento para el hombre y en Venezuela se aprovechan comercialmente almejas (Asaphis deflorata), ostras (Pinctada imbricata y Crassostrea rhizophorae), pepitonas (Arca zebra), pulpos (Optopus vulgaris), calamares (Loligo plei), vieiras (Amusium papyraceum), mejillones (Perna perna…

A series-parallel directed acyclic graph, or SP-dag, contains nodes that are either in series or logically in parallel. We present a data structure and algorithm to efficiently determine, in a single serial walk of the dag, whether two nodes are…

Cette thèse s’intéresse à la gouvernance de changements en contextes pluralistes. Nous souhaitons mieux comprendre l’exercice de gouvernance déployé pour développer et implanter un changement par le biais d’une politique publique visant la transformation d’organisations pluralistes. Pour ce faire, nous…

Dans le contexte actuel de l’éducation, l’enfant est davantage placé au cœur des relations entre la famille, l’école et la communauté, et les parents sont invités à accompagner leur enfant tout au long de son parcours scolaire. Quant aux enseignants,…

We show how to interoperate, semantically and inferentially, between the leading Semantic Web approaches to rules (RuleML Logic Programs) and ontologies (OWL/DAML+OIL Description Logic) via analyzing their expressive intersection. To do so, we define a new intermediate knowledge representation (KR)…

Information location and interactivity are two attributes of desktop virtual environment (DVE) design that can be exploited to enhance the ability of learners to acquire information and skills that transfer to real world. The term "information location" refers to the…

Questions about the suitability of cognitively-oriented instructional approaches for students of different academic levels are frequently raised by teachers and researchers. This study examined student participation in knowledge-building discourse in two implementations of a short inquiry unit focusing on environmental…

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…

Our country has an enormous variety of ways of life and cultures which end up developing specific relations based on the dependence upon natural cycles, due to the fact that they are somewhat isolated. Among other characteristics, their symbols and…

Technology offers promising opportunities for creating new types of classroom learning environments. This paper describes three technology models used by teacher education interns: electronic portfolios, negotiative concept mapping, cognote-supported electronic discussions. As implemented in the current study, these models invoke…