The notion of context and its importance in knowledge representation and nonmonotonic reasoning was first discussed in Artificial Intelligence by John McCarthy.
Ever since, contexts have found many applications in developing knowledge-based reasoning systems.
Defeasible argumentation has gained wide acceptance…

Descripción completa.

Adaptive finite element methods (FEM) have been widely used in applications for over 20 years now. In practice, they converge starting from coarse grids, although no mathematical theory has been able to prove this assertion. Ensuring an error reduction rate…

A new computable a posteriori error estimator is introduced, which relies on the solution of small discrete problems on stars. It exhibits built-in flux equilibration and is equivalent to the energy error up to data oscillation without any saturation assumption.…

Data oscillation is intrinsic information missed by the averaging process associated with finite element methods (FEM) regardless of quadrature. Ensuring a reduction rate of data oscillation, together with an error reduction based on a posteriori error estimators, we construct a…

A produção animal nos ecossistemas do semi-árido é influenciada pela variabilidade espacial e interanual da oferta quantitativa e qualitativa de recursos forrageiros. A dinâmica da acumulação de fitomassa para a maioria das diferentes espécies da caatinga é pouco conhecida, o…

This paper presents a group of elements to improve the teaching and learning in technological education, applied to Information and Communication Technologies (ICT). These elements are based on some contributions issued from contemporary education models, namely, the thematic approach, meaningful…

Durante los primeros años de civilización
los hombres manejaron los asuntos políticos,
sociales, económicos y culturales a través del
uso exclusivo de la oralidad: el razonamiento, las
normas, los tratados, entre otros; eran convenidos
y establecidos a través de la…

La investigación presenta como objetivo precisar las relaciones de pertinencia entre las variables estructurales del sistema de
conocimiento popular agrícola y las variables estructurales del desarrollo local al nivel rural como fundamento para promover
la transformación de la dinámica productiva…

, Presentación., Presentation., Aranguren R., Carmen, Cartografía de las representaciones de la globalización en textos de geografía de enseñanza media., Cartography of representation of globalization in geography texts in teaching middle school., Hollman, Verónica, Proyecto socioeducativo de ciudad: un escenario…