As a contribution to consider software projects to be risk investments, it is important the full standardization of either the planning methodology (as a subset of project management methodology) and the effort estimation method. We think there is important and…

Presentamos una estrategia para acelerar la simulación y visualización de mezclado advectivo--difusivo de un contaminante dentro de una cavidad cuadrada con condiciones de frontera dependientes del tiempo. No se requieren paredes móviles para mezclar el fluido sino la convección natural…

We can make very sensitive machines and may arrange for them to distinguish themselves from other objects. The programs that are designed toward specific goals, such as the identification of external objects, can also be imagined as action programs relating…

Ontology mapping involves the task of finding similarities among overlapping sources by using ontologies. In a Federated System in which distributed, autonomous and heterogeneous information sources must be integrated, ontologies have emerged as tools to solve semantic heterogeneity problems. In…

The appearance and continuous growth of virtual communities on the web imposes the challenge of coping with the large amount of information and knowledge these communities produce. The Semantic Web with its set of standards and technologies provides the basic…

We present point slicing, a new slicing technique for imperative programs that gives an answer to the question Which sentences can be executed if sentence p is executed?, very common in program testing, debugging, and understanding tasks and, as far…

In this paper, we present a UML profile and a group of UML patterns for documenting the component-and-connector views of software architectures [8]. They facilitate the creation of the component and connector viewtype in any UML 2.0 tool with a…

En este artículo se presentan datos experimentales de resistencia a flexión y a compresión de morteros de cemento Portland con adición y sustitución de breas de petróleo y de alquitrán de carbón, que son subproductos de la industria del carbón…

En los últimos años se ha elevado el número de personas que quieren aprender español como segunda lengua/lengua extranjera. Porello, es importante estudiar las dificultades que tienen que afrontar los estudiantes no nativos de español al momento de involucrarse en…

, , El autor propone el modelo genético como método comparativo para el estudio de los mayas con base en su distribución contigua geograficamente, así como sus raíces lingüísticas y culturales. Propone ocho pasos en el análisis: distribución lingüística, la…