Aprendizaje Lúdico en Laboratorio de Programación

Es obvio que la motivación del alumno es un factor decisivo en su aprendizaje, como lo son el interés y el gusto por la asignatura que estudia. En especial, en el caso de asignaturas que el alumno no identifica directamente con la titulación que cursa, la motivación es pobre y ello se refleja en los resultados. En este trabajo se presenta un enfoque pedagógico desarrollado por el equipo docente de la asignatura Laboratorio de Programación de la Ingeniería Técnica de Telecomunicación de la Universidad de Málaga. El enfoque, basado en el uso de juegos de ordenador, se ha demostrado muy adecuado

AORESCU: Opinion Analysis in Social Networks and User-Generated Contents

El proyecto AORESCU tiene como objetivos la recopilación y el procesamiento de la información generada por los usuarios sobre una entidad con idea de obtener a partir de ella una serie de indicadores que permitan evaluar la imagen que los usuarios tienen de la misma. La información recuperada puede ser estructurada (p.e. valoraciones numéricas) y no estructurada (fundamentalmente en forma de textos en lenguaje natural). Las técnicas y herramientas utilizadas en el proyecto son adaptables a cualquier dominio. No obstante, se ha elegido el ámbito turístico como dominio de aplicación al tratarse de un sector con una importante actividad económica y para el que es fácil encontrar contenidos para analizar. El proyecto tiene cuatro partes fundamentales: la recuperación de información de distintas fuentes sobre las entidades que pertenecen al dominio de aplicación (hoteles, restaurantes, espacios naturales, monumentos,…), la definición de un modelo de datos para representar esta información, el desarrollo de herramientas de análisis de textos para procesar los comentarios de los usuarios y el desarrollo de una aplicación web que permita analizar los datos procesados.AORESCU project main goals are focused on the retrieval and processing of information generated by users about an entity. The idea is to get insights from this information that help us to understand the perception of users about an entity. We can retrieve two types of information from web 2.0 sources: structured information (e.g. numerical rating) and unstructured (mainly in the form of texts in natural language). The techniques and tools used in the project are adaptable to any domain. We chose the tourism sector as application domain since it is a sector with an important economic activity and because it is easy to find user generated content about touristic resources. The project has four main phases: the retrieval of information from different sources about the entities (for the tourism sector, these entities are hotels, restaurants, natural spaces, monuments,...), the definition of a data model to represent this information, the development of text analysis tools to process user comments and the development of a web application to query and analyze the processed data.El proyecto AORESCU (P11-TIC-7684 MO) está financiado por la Consejería de Innovación, Ciencia y Empresas de la Junta de Andalucía

Interdisciplinarity in practice: Challenges and benefits for privacy research

International audienceThe goal of this paper is to draw the lessons learned from a project that involved security systems engineers, computer scientists, lawyers and social scientists. Since one of the goals of the project was to propose actual solutions following the privacy by design approach, its aim was to go beyond multidisciplinarity and build on the variety of expertise available in the consortium to follow a true interdisciplinary approach. We present the challenges before describing the solutions adopted by the project to meet them and the outcomes and benefits of the approach. We conclude with some lessons to be drawn from this experience and recommendations for future interdisciplinary projects

Kinetic modulation of bacterial hydrolases by microbial community structure in coastal waters

In this study, we hypothesized that shifts in the kinetic parameters of extracellular hydrolytic enzymes may occur as a consequence of seasonal environmental disturbances and would reflect the level of adaptation of the bacterial community to the organic matter of the ecosystem. We measured the activities of enzymes that play a key role in the bacterial growth (leucine aminopeptidase, β- and α-glucosidases) in surface coastal waters of the Eastern Cantabrian Sea and determined their kinetic parameters by computing kinetic models of distinct complexity. Our results revealed the existence of two clearly distinct enzymatic systems operating at different substrate concentrations: a high-affinity system prevailing at low substrate concentrations and a low-affinity system characteristic of high substrate concentrations. These findings could be the result of distinct functional bacterial assemblages growing concurrently under sharp gradients of high-molecular-weight compounds. We constructed an ecological network based on contemporaneous and time-delayed correlations to explore the associations between the kinetic parameters and the environmental variables. The analysis revealed that the recurring phytoplankton blooms registered throughout the seasonal cycle trigger the wax and wane of those members of the bacterial community able to synthesize and secrete specific enzymes.his work has been supported by projects EFICIENCIA (CTM2006-08023) and CAMBIO (CTM2010-19308), co-financed by Ministry of Science and Innovation of the Spanish Government and European FEDER founds, the Basque Government (Grant to Research Group IT1657-22) and by the UPV/EHU (Grant to Research Group GIU10/17). Naiara Abad was supported by a scholarship from the Basque Government and currently by the grant Margarita Salas from the European Union—NextGenerationEU through the UPV/EHU. Zuriñe Baña and Ainhoa Uranga were financed by scholarships from the UPV/EHU

Search for R-Parity Breaking Sneutrino Exchange at LEP

We report on a search for R--parity breaking effects due to supersymmetric tau--sneutrino exchange in the reactions e+e- to e+e- and e+e- to mu+mu- at centre--of--mass energies from 91~{\GeV} to 172~{\GeV}, using the L3 detector at LEP. No evidence for deviations from the Standard Model expectations of the measured cross sections and forward--backward asymmetries for these reactions is found. Upper limits for the couplings $\lambda_{131}$ and $\lambda_{232}$ for sneutrino masses up to m_{\SNT} \leq 190~\GeV are determined from an analysis of the expected effects due to tau sneutrino exchange

Determination of the number of light neutrino species from single photon production at LEP

A determination of the number of light neutrino families performed by measuring the cross section of single photon production in \ee\ collision near the \Zo\ resonance is reported. From an integrated luminosity of $100~\mathrm{pb^{-1}}$, collected during the years 1991--94, we have observed 2091 single photon candidates with an energy above 1~\GeV\ in the polar angular region $45^\circ < \theta_\gamma < 135^\circ$. From a maximum likelihood fit to the single photon cross section, the \Zo\ decay width into invisible particles is measured to be \Ginv = 498 \pm 12 \mathrm{(stat)} \pm 12 \mathrm{(sys)~MeV}. Using the Standard Model couplings of neutrinos to the \Zo, the number of light neutrino species is determined to be $N_\nu = 2.98 \pm 0.07 (\mathrm{stat}) \pm 0.07 (\mathrm{sys}).

Search for charged Higgs bosons in e+e−e^+ e^- collisions at centre-of-mass energies between 130 and 183 GeV

A search for pair-produced charged Higgs bosons is performed with the L3 detector at LEP using data collected at centre-of-mass energies from \mbox{130 to 183 \GeV{}}, corresponding to an integrated luminosity of 88.3 \pb. The Higgs decays into a charm and a strange quark or into a tau lepton and its associated neutrino are considered. The observed candidates are consistent with the expectations from Standard Model background processes. A lower limit of 57.5 \GeV{} on the charged Higgs mass is derived at 95\% CL, independent of the decay branching ratio \mathrm{Br(H^\pm\ra \tau\nu)}

Measurement of the inclusive charmless semileptonic branching fraction of beauty hadrons and a determination of |VubV_{ub}| at LEP

A measurement of the inclusive charmless semileptonic branching fraction of beauty hadrons, $\mathrm{b}\rightarrow\mathrm{X}_\mathrm{u }\ell\nu$, has been performed using almost two million hadronic Z decays collected by the L3 experiment at LEP, yielding the result: \begin{displaymath} \mathrm{Br}(\mathrm{b}\rightarrow\mathrm{X}_\mathr m{u}\ell\nu) = (3.3 \pm 1.0 \pm 1.7)\times 10^{-3}. \end{displaymath} The first uncertainty is statistical and the second is systematic. The modulus of the Cabibbo-Kobayashi-Maskawa matrix element $\mathrm{V_{ub}}$ extracted from this measurement is: \begin{displaymath} |\mathrm{V_{ub}}| = (6.0\, ^{+0.8}_{-1.0} \, ^{+1.4}_{-1.9} \pm 0.2)\times 10^{-3}, \end{displaymath} where the uncertainties are statistical, systematic and theoretical, respectively