Este estudio es una investigación-acción cualitativa, en la que se analizó la efectividad de aplicar la instrucción guiada basada en el método de Kumon con alumnos que aprenden el idioma inglés como segunda lengua. Se evaluó los resultados de la…

La epidemia del VIH/SIDA en el Ecuador se encuentra todavía en un estado concentrado con seroprevalencias en la población general alrededor del 0,3 %. Sin embargo, en las poblaciones de mayor afectación, los hombres teniendo sexo con hombres (HSH) y…

Data mining is at the core of the knowledge discovery process. However, an initial preprocessing step is crucial for assuring reliable results within this process. Preprocessing of data is a time-consuming and non-trivial task since data quality issues should be…

La découverte du système des peptides natriurétiques (NP), au début des années 80, fut une découverte majeure qui révéla le rôle endocrinien du cœur. Les connaissances sur la relaxation vasculaire, la diurèse et la natriurèse provoquées par ce système ont…

Desafíos de la educación superior en México; Formación académica y profesional en contaduría; Knowledge Hub como medio para compartir y construir conocimiento; Iniciativa Knowledge Hub IES Contaduría

Many of today's products are so complex that no single company has all the necessary knowledge about either the product or the required processes to completely design and manufacture them in-house. As a result, most companies are dependent on others…

We analyze an alternative to the standard rationalizability requirement for observed choices by considering non-deteriorating selections. A selection function is a generalization of a choice function where selected alternatives may depend on a reference (or status quo) alternative in addition…

Current reasoning systems attempt to model an agent's knowledge and interaction with its environment in a symbolic manner. This environment, its world is generally dynamic and changing due to natural evolution or the actions of other agents that are a…

Most Natural Language Processing (NLP) systems traditionally use a sequential architecture that represents the classical linguistic levels (lexical-morphological, syntactical, semantic, etc.), but they claim for huge and monolithic modules, that make the backtracking among such modules difficult. By using a…

We identify conditions under which preferences over sets of consumption opportunities can be reduced to preferences over bundles of \"commodities\". We distinguish ordinal bundles, whose coordinates are defined up to monotone transformations, from cardinal bundles, whose coordinates are defined up…