One of the main concerns is the nature of the missing values. Let’s consider extremes for simplicity. If missing at random we have not to care about. But if missing shows structures that covariate with substantive variables we have to…

El presente trabajo de grado, fruto de la investigación con el tema “Educación en
Valores a partir del Evangelio de Mateo. Propuesta de formación para los niños y niñas
de sexto y séptimo de Educación General Básica”, realizada en la…

La Terapia Cognitivo Conductual reduce los síntomas tanto de depresión como ansiedad a un nivel más rápido que cualquier otra terapia (Malkinson, 2010). El sujeto a participar en este estudio de caso es una mujer que cumple con los criterios…

Se presentan los datos de recolecta de cuatro nuevos registros de arañas para el estado de Guanajuato: Argiope argentata (Fabricius 1775), Castianeira dorsata (Banks 1898), C. plorans (O.P.Cambridge 1898) y Selenops gracilis Muma 1953. Adicionalmente, se proporcionan algunos datos de…

The genetic algorithms have seen applied in knowledge discovery and specially for discovering association rules. In this paper, we explore the use of di erent rule quality measures in the tness function in a genetic algorithm for discovering association rules.…

Manipulating and retrieving multimedia data has received increasing attention with the advent of cloud storage facilities. The ability of querying by similarity over large data collections is mandatory to improve storage and user interfaces. But, all of them are expensive…

Clustering of short texts is an important research area because of its applicability in information retrieval and text mining. To this end was proposed CLUDIPSO, a discrete Particle Swarm Optimization algorithm to cluster short texts. Initial results showed that CLUDIPSO…

As a part of a taxonomic revision of Ethesia Raf., a new species, E. tanquana Mart.-Azorín & M.B.Crespo, is described from the Tanqua Karoo in South Africa. This new species is at first sight similar to E. haalenbergensis (U.Müll.-Doblies &…

Objetivo: El objetivo de esta revisión de la literatura es examinar qué se ha publicado sobre variabilidad de la práctica clínica desde el enfoque de la enfermería. Métodos: Se realizó una búsqueda bibliográfica en las principales bases de datos internacionales…

The main purpose of this book is to present the contents of an introductory course in databases. In this regard, one can find a number of material validity and recognized different scopes. This work is developed under the guidelines that…