Resumen. El diseño pedagógico para la formación y evaluación de la competencia de trabajo en equipo ha de tener en cuenta los factores que influyen y mejoran la eficacia de los equipos. El modelo Inputs-Mediators-Outputs, ampliamente utilizado en el contexto de las organizaciones, conceptualiza esos factores en tres fases; en la primera de ellas, Inputs, se reúnen los aspectos de entrada que pueden afectar el funcionamiento del equipo y, en particular, se describe el valor de la heterogeneidad de los miembros de un equipo como variable que favorece la eficacia de ciertos tipos de equipos. En este artículo, se presenta una investigación de un caso en la educación superior, en el que se ha generado un grupo experimental de equipos de composición heterogénea en cuanto a los estilos de aprendizaje preferentes de sus miembros y un grupo de control de equipos constituidos aleatoriamente, con el fin de contrastar la influencia de esa diferente composición con el rendimiento académico. Los resultados obtenidos en el estudio indican que no hay diferencias significativas entre el grupo experimental y el de control en cuanto a las calificaciones del alumnado; si bien, queda patente que el curso en el que se realizó el estudio se produjo un incremento sustancial del número de estudiantes que permanecieron en las asignaturas en comparación con los tres cursos anteriores. Por otro lado, se ha demostrado que el rol de coordinador está ligado al estilo de aprendizaje activo; este dato parece revelar que es oportuno avanzar en esta línea de investigación, probando otro tipo de combinaciones de estilos. Palabras clave: Trabajo en equipo; estilos de aprendizaje; equipos heterogéneos; liderazgo; resultados educativos.[en] Teamwork and learning styles in higher education Abstract. The instructional design for training and assessment in teamwork competency must take into account the factors that influence and improve the efficiency of teams. The Inputs-Mediators-Outputs model, widely used in the context of organizations, conceptualizes these factors into three phases. The first, Inputs, considers the input aspects that can affect the team functioning and, in particular, describes the value of heterogeneity in team members as a variable that improves the effectiveness of certain types of teams. This paper presents a research carried out in Higher Education, with an experimental group
The paper shows a generalization and further development of a previous work of ours already published. We describe and analyze a kind of devices intended to create a prescribed magnetic field using a set of conductors. More precisely, we discuss a device that is capable of shaping the tangential component of the magnetic field along a specific path by controlling the current applied to each conductor. An orthogonal function decomposition is used to determine the magnitude of each current. The system performance depends on the number of conductors and their location, so we introduce a set of quality parameters, and some common geometries are evaluated upon them. These devices are intended for calibration purposes of current measuring instruments based on Ampere's integral, although the metrological aspects are out of the scope of this paper.
In this paper we analyze the characteristics of the so-called rare earth elements (REEs) and its industrial applications. We present the policy, or lack thereof, in the countries in the Pacific Rim for its mining and commerce, and the current and future weight that rare earth minerals will have in international trade. The technological revolution experienced over the last 25 years, has brought the REEs to the public's attention for being instrumental in obtaining catalysts, lasers and optical fiber, luminescent substances and LEDs, superconductors, permanent magnets, batteries and ultra-capacitors. China's leading position as the supplier of these minerals worldwide, and its recent export restriction policy for domestic industrial activities have driven up international prices. Price increase for REEs is leading to the need for both recycling and its replacement. It has also led other countries in the Asia Pacific Rim to prospect new potential sites on their own territories, or even to restart operations in deposits that had been previously abandoned. Those strategies will likely gain greater importance as environmental pollution problems associated with the exploitation, processing, and recovery of REEs increase.
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