Comunicación digital. Nuevos yacimientos de empleo y formación

El progreso de las Tecnologías de la Información y la Comunicación (TIC), y en concreto su aplicación al desarrollo de Internet, están transformando rápidamente el sistema de producción y, consecuentemente, los perfiles profesionales demandados. Recordemos que entendemos por perfil profesional el conjunto de conocimientos, habilidades, competencias y aptitudes que hacen a un profesional competitivo en un determinado mercado de trabajo. En este artículo reflexionaremos sobre el mercado de trabajo de los ‘comunicadores digitales' que surgen de la evolución de Internet y que encuentran su campo de actuación en las nuevas formas de comunicación interpersonal, los nuevos medios de comunicación social y entretenimiento y en la comunicación de empresas e instituciones con sus clientes y proveedores. Uno de los principales yacimientos de nuevos empleos en la economía del conocimiento europea, según vaticinan todos los informes

Mapping of mechanical properties of cement paste microstructures

The presented study is related to the EU 7 th Framework Programme CODICE (COmputationally Driven design of Innovative CEment-based materials). The main aim of the project is the development of a multi-scale model for the computer based simulation of mechanical and durability performance of cementitious materials. This paper reports results of micro/nano scale characterisation and mechanical property mapping of cementitious skeletons formed by the cement hydration at different ages. Using the statistical nanoindentation and micro-mechanical property mapping technique, intrinsic properties of different hydrate phases, and also the possible interaction (or overlapping) of different phases (e.g. calcium-silcate-hydrates) has been studied. Results of the mapping and statistical indentation testing appear to suggest the possible existence of more hydrate phases than the commonly reported LD and HD C-S-H and CH phases

First steps in the discovery of patterns in the academic results of telecommunication engineering students in the subjects Analysis of Circuits and Mathematics

In this paper, the results of six years of research in engineering education, in the application of the European Higher Education Area (EHEA) to improve the performance of the students in the subject Analysis of Circuits of Telecommunication Engineering, are analysed taking into consideration the fact that there would be hidden variables that both separate students into subgroups and show the connection among several basic subjects such as Analysis of Circuits (AC) and Mathematics (Math). The discovery of these variables would help us to explain the characteristics of the students through the teaching and learning methodology, and would show that there are some characteristics that instructors do not take into account but that are of paramount importance

Estudio de la series sísmicas ocurridas en 2010 en la costa almeriense

En este trabajo se presenta un análisis de las series sísmicas registradas durante los meses de julio y noviembre de 2010 en el sector noreste del mar de Alborán, cerca de Almería. La primera serie consta de, al menos, 180 terremotos registrados entre el 4 de julio y el 15 de Noviembre de 2010, con un terremoto principal de Mw =4.3 ocurrido el 5 de Julio y sentido en Almería con intensidad EMS IV. Esta serie está caracterizada por tener una fuerte alineación con dirección NW, que contrasta con la de los grandes sistemas de fallas de la zona (falla de Carboneras). La segunda serie consta de más de 27 terremotos y se extiende del 2 al 15 de Noviembre, con un sismo principal de magnitud Mw =4.1 ocurrido el día 4 de ese mes. Esta segunda serie se sitúa a unos 35 km al Este de la primera, siendo menos numerosa que ésta pero mucho más próxima a las poblaciones del Poniente Almeriense y alcanzando mayores intensidades (intensidad máxima EMS = V). El objetivo de este estudio es analizar en detalle ambas series sísmicas, examinado la distribución geográfica de los sismos que las componen, su distribución temporal y su posible interrelación con series sísmicas pasadas. Finalmente se tratará de identificar, con los conocimientos de la tectónica de la zona, la posible fuente sísmica generadora, así como analizar posibles efectos de disparo entre eventos por medio de modelizaciones de esfuerzos de Coulomb.

Neutron spectrometry using artificial neural networks for a bonner sphere spectrometer with 3He detector

Neutron spectra unfolding and dose equivalent calculation are complicated tasks in radiation protection, are highly dependent of the neutron energy, and a precise knowledge on neutron spectrometry is essential for all dosimetry-related studies as well as many nuclear physics experiments. In previous works have been reported neutron spectrometry and dosimetry results, by using the ANN technology as alternative solution, starting from the count rates of a Bonner spheres system with a LiI(Eu) thermal neutrons detector, 7 polyethylene spheres and the UTA4 response matrix with 31 energy bins. In this work, an ANN was designed and optimized by using the RDANN methodology for the Bonner spheres system used at CIEMAT Spain, which is composed of a He neutron detector, 12 moderator spheres and a response matrix for 72 energy bins. For the ANN design process a neutrons spectra catalogue compiled by the IAEA was used. From this compilation, the neutrons spectra were converted from lethargy to energy spectra. Then, the resulting energy ?uence spectra were re-binned by using the MCNP code to the corresponding energy bins of the He response matrix before mentioned. With the response matrix and the re-binned spectra the counts rate of the Bonner spheres system were calculated and the resulting re-binned neutrons spectra and calculated counts rate were used as the ANN training data set.

Performance of artificial neural networks and genetical evolved artificial neural networks unfolding techniques

With the Bonner spheres spectrometer neutron spectrum is obtained through an unfolding procedure. Monte Carlo methods, Regularization, Parametrization, Least-squares, and Maximum Entropy are some of the techniques utilized for unfolding. In the last decade methods based on Artificial Intelligence Technology have been used. Approaches based on Genetic Algorithms and Artificial Neural Networks have been developed in order to overcome the drawbacks of previous techniques. Nevertheless the advantages of Artificial Neural Networks still it has some drawbacks mainly in the design process of the network, vg the optimum selection of the architectural and learning ANN parameters. In recent years the use of hybrid technologies, combining Artificial Neural Networks and Genetic Algorithms, has been utilized to. In this work, several ANN topologies were trained and tested using Artificial Neural Networks and Genetically Evolved Artificial Neural Networks in the aim to unfold neutron spectra using the count rates of a Bonner sphere spectrometer. Here, a comparative study of both procedures has been carried out.

Estudio de la anisotropía de una fuente de Am-Be de 111 GBq

Se ha estudiado la anisotropía de una fuente de Am-Be de 111 GBq (3Ci) mediante el uso de un pequeño motor que permite girar paso a paso la fuente situada en su posición de irradiación habitual. Las medidas se han realizado con un contador proporcional de 3He alojado en el interior de una esfera moderadora de 8” correspondiente a un sistema de espectrometría de esferas Bonner. Se reportan los resultados obtenidos y el factor de anisotropía determinado para esta fuente.

Measuring the influence of Cooperative Learning and Project Based Learning on problem solvin skill.

The aim of this study is to evaluate the effects obtained after applying two active learning methodologies (cooperative learning and project based learning) to the achievement of the competence problem solving. This study was carried out at the Technical University of Madrid, where these methodologies were applied to two Operating Systems courses. The first hypothesis tested was whether the implementation of active learning methodologies favours the achievement of ?problem solving?. The second hypothesis was focused on testing if students with higher rates in problem solving competence obtain better results in their academic performance. The results indicated that active learning methodologies do not produce any significant change in the generic competence ?problem solving? during the period analysed. Concerning this, we consider that students should work with these methodologies for a longer period, besides having a specific training. Nevertheless, a close correlation between problem solving self appraisal and academic performance has been detected.

Tectosilicatos con características especiales: las zeolitas naturales

Las zeolitas comprenden un grupo de aluminosilicatos cristalinos e hidratados de aluminio, con cationes alcalinos y alcalino-térreos, y con una ordenación tridimensional (tectosilicatos) donde predomina una estructura abierta que les aporta gran capacidad para incorporar y ceder agua y cationes, sin cambios importantes en el edificio cristalino. Constituyen el grupo mineral más variado y extenso de los que forman la corteza terrestre (Bosch, P. y Schifter, I. 1997)

El Terremoto de Lorca (2011) en el contexto de la peligrosidad y el riesgo sísmico en Murcia.

Este trabajo presenta un análisis de diferentes aspectos relacionados con el sismo principal del 11 de Mayo de 2011, con epicentro en las proximidades de Lorca, que abarcan desde el movimiento fuerte registrado hasta el daño observado en diferentes tipologías constructivas, contrastando todo ello con los resultados de estudios previos de peligrosidad y riesgo sísmico en la provincia de Murcia. La cuestión esencial que se plantea en el análisis es si tanto el movimiento como el daño entraban dentro de lo esperado o pueden considerarse anómalos en el marco del riesgo sísmico del sureste de España. A este respecto se hacen una serie de reflexiones y se extraen lecciones aprendidas del terremoto, que llevan a proponer recomendaciones de cara a la revisión de la Norma Sismorresistente Española, así como a definir medidas para la reducción del riesgo sísmico en la región. Abstract: An analysis of the different aspects related to the May 11th, 2011 Lorca earthquake is presented,covering recorded ground motions, damage observed in different building typologies, and contrasting these observations with previous results on seismic hazard and seismic risk obtained in the province of Murcia. The essential question addressed in the analysis is whether observed ground motions and physical damage can be considered as expected or as anomalous in the frame of seismic risk in southeastern Spain. In this respect, a number of reflections are carried out and several learned lessons from the earthquake are extracted, which leads to the proposal of different recommendations for the future revision of the Spanish earthquake-resistant provisions, as well as for defining risk reduction measurements in the region.

Evaluación de la huella de carbono en el barrio de la viña Lorca por rehabilitación de daños en edificios tras el sismo de 2011.

Evaluación de la huella de carbono en el barrio de la viña Lorca por rehabilitación de daños en edificios tras el sismo de 2011.

Study of seismic vulnerability and the damage seen in the town of Lorca after the earthquake of 2011.

Análisis de los factores de vulnerabilidad que mas influencia han tenido en el daño del terremoto de Lorca.