La enseñanza de la lengua : usos y prácticas lingüísticas diversas

Los autores presentan alternativas para trabajar la enseñanza de la lengua, dando respuesta a la diversidad cultural de las aulas, mejorando la comprensión y el uso del lenguaje entre el alumnado. A partir de una propuesta práctica se ve necesario establecer un modelo de comunicación multidireccional y circular dentro del aula, así como una participación de los alumnos en la elección y planificación de los contenidos. Relacionado con esto también es interesante negociar las estrategias de enseñanza-aprendizaje y los procedimientos que se utilizan, así como la evaluación que se hace, la cual ha de obedecer a razones pedagógicas teniendo en cuenta la participación activa del grupo.Els autors presenten alternatives per treballar l'ensenyament de la llengua, tot donant resposta a la diversitat cultural de les aules, afavorint la comprensió i l'ús del llenguatge entre l'alumnat. A partir d'una proposta pràctica es veu necessari establir un model de comunicació multidireccional i circular dins l'aula, així com una participació dels alumnes en l'elecció i planificació dels continguts. Relacionat amb això, també és interessant negociar les estratègies d'ensenyament-aprenentatge i els procediments que s'utilitzen, així com l'avaluació que es fa, la qual ha d'obeir a raons pedagògiques tenint en compte la participació activa del grup.A number of alternatives to language teaching are presented by the authors with the aim of responding the cultural diversity of classrooms, while promoting language comprehension and use among students. Starting from a practical proposal, it becomes necessary to establish a model of multidirectional and circular communication inside the classroom and, at the same time, to allow the students' participation during the process of choosing and planning the contents. Moreover, it may also be interesting to discuss the strategies and ways of teaching-learning and the kind of evaluation, which must always be along pedagogical lines, taking into account the active participation of the group

A free-energy stable nodal discontinuous Galerkin approximation with summation-by-parts property for the Cahn-Hilliard equation

We present a nodal Discontinuous Galerkin (DG) scheme for the Cahn-Hilliard equation that satisfies the summation-by-parts simultaneous-approximation-term (SBP-SAT) property. The latter permits us to show that the discrete free-energy is bounded, and as a result, the scheme is provably stable. The scheme and the stability proof are presented for general curvilinear three-dimensional hexahedral meshes. We use the Bassi-Rebay 1 (BR1) scheme to compute interface fluxes, and an IMplicit-EXplicit (IMEX) scheme to integrate in time. Lastly, we test the theoretical findings numerically and present examples for two and three-dimensional problems

Lateral downflows in sunspot penumbral filaments and their temporal evolution

We study the temporal evolution of downflows observed at the lateral edges of penumbral filaments in a sunspot located very close to the disk center. Our analysis is based on a sequence of nearly diffraction-limited scans of the Fe I 617.3 nm line taken with the CRisp Imaging Spectro-Polarimeter at the Swedish 1 m Solar Telescope. We compute Dopplergrams from the observed intensity profiles using line bisectors and filter the resulting velocity maps for subsonic oscillations. Lateral downflows appear everywhere in the center-side penumbra as small, weak patches of redshifts next to or along the edges of blueshifted flow channels. These patches have an intermittent life and undergo mergings and fragmentations quite frequently. The lateral downflows move together with the hosting filaments and react to their shape variations, very much resembling the evolution of granular convection in the quiet Sun. There is a good relation between brightness and velocity of the flow structures in the center-side penumbra, with downflows being darker than upflows on average, which is again reminiscent of quiet Sun convection. These results point to the existence of overturning convection in sunspot penumbrae, with elongated cells forming filaments where the flow is upward but very inclined, and weak lateral downward flows. In general, the circular polarization profiles emerging from the lateral downflows do not show sign reversals, although sometimes we detect three-lobed profiles which are suggestive of opposite magnetic polarities in the pixel.Comment: 16 pages, 15 figures. Accepted for publication in ApJ. Movies are available at http://spg.iaa.es/download

A new self-organizing neural gas model based on Bregman divergences

In this paper, a new self-organizing neural gas model that we call Growing Hierarchical Bregman Neural Gas (GHBNG) has been proposed. Our proposal is based on the Growing Hierarchical Neural Gas (GHNG) in which Bregman divergences are incorporated in order to compute the winning neuron. This model has been applied to anomaly detection in video sequences together with a Faster R-CNN as an object detector module. Experimental results not only confirm the effectiveness of the GHBNG for the detection of anomalous object in video sequences but also its selforganization capabilities.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tec

<e-Tutor> GE: <e-Tutor> Graphical Editor

En este proyecto de Sistemas Informáticos construimos una herramienta sencilla, que consiste en un editor gráfico para y facilita la creación de tutoriales sin necesidad de tener conocimientos de lenguajes de programación. El editor permite asociar una serie de figuras que, procesadas secuencialmente, generarán un tutorial socrático. Este tipo de tutoriales pueden ser utilizados en multitud de campos, no sólo el informático, siempre dentro de un marco educativo. El desarrollo de GE se apoya en diferentes tecnologías Eclipse, que permiten la construcción de una herramienta gráfica a partir de un modelo de datos. [ABSTRACT] In This Project we have built a simple tool which consists on a graphical editor for that makes it easier to create tutorials without any knowledge in programming languages. The editor permits authors to associate certain figures, that sequentially processed, will generate a socratic tutorial. This kind of tutorials can be used for various matters, not only computing, but always within an educational framework. The development of GE is supported by some Eclipse technologies, which allow building a graphical tool from a data model

La calidad en las agencias de viajes ante el reto de la Innovación Tecnológica

Las Agencias de Viajes en España están asistiendo a una reestructuración del sector y a un cambio en sus actividades tradicionales. Para afrontar estos cambios deben desarrollar e implantar nuevas estrategias basadas en la calidad del servicio prestado. Para lograrlo, se propone un modelo basado en cuatro líneas de actuación que son la mejora de la formación de los agentes, el conocimiento de las características de su demanda, la adecuación a dicha demanda a través de productos diferenciados para cada segmento o cliente y el aseguramiento de un servicio de calidad en el destino final. Para la implantación de este modelo, el uso de las nuevas tecnologías se hace imprescindible

Lateral downflows in sunspot penumbral filaments and their temporal evolution

© 2015. The American Astronomical Society. All rights reserved.. We study the temporal evolution of downflows observed at the lateral edges of penumbral filaments in a sunspot located very close to the disk center. Our analysis is based on a sequence of nearly diffraction-limited scans of the Fe i 617.3nm line taken with the CRisp Imaging Spectro-Polarimeter instrument at the Swedish 1 m Solar Telescope. We compute Dopplergrams from the observed intensity profiles using line bisectors and filter the resulting velocity maps for subsonic oscillations. Lateral downflows appear everywhere in the center-side penumbra as small, weak patches of redshifts next to or along the edges of blueshifted flow channels. These patches have an intermittent life and undergo mergings and fragmentations quite frequently. The lateral downflows move together with the hosting filaments and react to their shape variations, very much resembling the evolution of granular convection in the quiet Sun. There is a good relation between brightness and velocity in the center-side penumbra, with downflows being darker than upflows on average, which is again reminiscent of quiet Sun convection. These results point to the existence of overturning convection in sunspot penumbrae, with elongated cells forming filaments where the flow is upward but very inclined, and weak lateral downward flows. In general, the circular polarization profiles emerging from the lateral downflows do not show sign reversals, although sometimes we detect three-lobed profiles that are suggestive of opposite magnetic polarities in the pixel.Financial support by the Spanish Ministerio de Economia y Competitividad through grants AYA2009-14105-C06-06, AYA2012-39636-C06-05, and ESP2013-47349-C6-1 R, including a percentage from European FEDER funds, is gratefully acknowledged.Peer Reviewe

Intangibles factors and quality assessment of the service received in travel agencies

La adaptación de las agencias de viajes a los patrones de la Nueva Economía nos conduce a una tendencia hacia la reestructuración del sector, centrada en la búsqueda de nuevas estrategias competitivas. La creciente importancia de los activos intangibles para la consecución de dichas estrategias ha motivado este estudio, que trata de identificar aquellos factores intangibles, presentes en la prestación de este servicio, y que están directamente relacionados con la percepción, por parte del cliente, de una diferenciación en el servicio recibido.Adaptation of travel agencies to the standards of the New Economy is leading to a trend towards restructuring the sector aimed at finding new competitive strategies. The growing importance of intangible assets in achieving such strategies has motivated this study, which has tried to identify those intangible factors, present in the provision of the service, that have a direct relationship with the client´s perception of a differentiation in the service received