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Instructional activities should allow applying the knowledge acquired in the day by day and in real situations. Different studies evidence the potential impact of video games on learning, however very few empirical studies that focus on continuous assessment. On the other hand, because the variables that influence the achievement of learning objectives are different levels becomes complex to validation the effectiveness of an assessment of game-based learning, therefore, it is necessary to test inferences on academic development, testing hypotheses rigorous causal. We propose the use of multivariate analysis based on structural equation modeling as it facilitates the establishment of dependency relationships, to validate the proposal; we have performed an empirical test analytical applying a sequence of scenarios different to stimulate cognitive function of planning in a child population.

-Currently, practices and tools for computer-aided three-dimensional design, do not allow the semantic description of objects constructed in some cases specified notations as handling layers, or labeling of each development itself. The lack of a standard for the description of the elements represents a major drawback for using advanced three-dimensional environments such as the automation of search and construction processes that require semantic knowledge of its elements.This project proposes the development the semantic composition from the hierarchy of three-dimensional visualization of graphics primitives used to construct three-dimensional objects, taking into account the geometric composition architecture of standard 19775-1 of the International Electrotechnical Commission of the International Organization for Standardization For the development of semantic composition use the methodology methontology proposed by the Universidad Politécnica de Madrid, because it allows the construction of ontologies about specific domains, limiting the domain by defining classes and subclasses, relationships and the generation of instances a framework for resource description on web ontology language.

Generalidades del riesgo y conceptualización de la vulnerabilidad U na de las dificultades que existe para hacer una gestión del riesgo efectiva es la multiplicidad de definiciones que se encuentran en la literatura en relación con las palabras vulnerabilidad, amenaza y riesgo. Las diferencias conceptuales que se presentan hacen que la comunicación entre profesionales de diversas disciplinas aborde el problema de gestión del riesgo de forma diferente, y que consecuentemente los esfuerzos que se realicen no vayan encaminados a solucionar problemas de raíz para mejorar el nivel de vida de las comunidades afectadas por un peligro natural.

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