Los Objetivos de Desarrollo del Milenio, y dentro de éstos las Metas del Milenio, constituyen un plan operativo para la consecución de logros básicos dirigidos al alcance de la salud, la erradicación de la pobreza y el cumplimiento de los…

La superación del juridicismo y de la aplicación mecánica de las normas reclama un nuevo perfil de juez que no sólo atienda al conocimiento y habilidades jurídicas sino también a consideraciones éticas. En este marco, el autor aborda el tema…

This study provides support to the characteristics of participatory and anticipatory stages in secondary school pupils’ abstraction of mathematical conceptions. We carried out clinical task-based interviews with 71 secondary-school pupils to obtain evidence of the different constructed mathematical conceptions (Participatory…

A knowledge of the shape of the cornea is of major importance for the planning and monitoring of surgery, and for the correct diagnosis of corneal diseases. Many authors have studied the geometry of the second corneal surface in the…

In this paper, a restricted domain question answering (QA) system is described. The design architecture of this QA system and the features that allow the adaptation of the QA system to the medical domain are also presented. The advantages of…

Characterizations of the containment of a convex set either in an arbitrary convex set or in the complement of a finite union of convex sets (i.e., the set, described by reverse-convex inequalities) are given. These characterizations provide ways of verifying…

Issues related to maternal mortality have generated a lot of empirical and theoretical information. However, despite the amount of work published on the topic, maternal mortality continues to occur at high rates and solutions to the problem are still not…

Muchos son los factores que determinan la dinámica de poblaciones de plantas entre los cuales hay demográficos (variabilidad ambiental,
densidad poblacional, etc.) y genéticos (variabilidad genética de los individuos, deriva genética y/o depresión por consanguinidad). Entender
los efectos de esos…

A concept of pedagogical process knowledge (PPK) is introduced to partner pedagogical content knowledge (PCK). This concept arises from observing the learning of teachers engaged in a course supporting them in introducing more inquiry-based methods into their practice. This course…

The chemical effects of acoustic cavitation are obtained in sono-reactors built-up from a vessel and an ultrasonic
source. In this paper, simulations of an existing sono-reactor are carried out, using a linear acoustics model, accounting
for the vibrations of the…