Modeling Sensor Knowledge of a National Hydrologic Information System

In this paper we describe our experience in modeling and using sensor knowledge of a national hydrologic information system in Spain. We developed a web application called VSAIH supported by a knowledge-based system to analyze sensor data and to generate explanations that help users to make decisions based on hydrologic behavior. In the paper, we describe the characteristics of the infrastructure of hydrologic sensors and the representa-tion we used to model sensor knowledge to provide support to the VSAIH application. We also describe semi-automatic procedures that we applied to construct the final model

Calculation of the optical response of C60 and Na8 using time-dependent density functional theory and local orbitals

We report on a general method for the calculation of the frequency-dependent optical response of clusters based upon time-dependent density functional theory (TDDFT). The implementation is done using explicit propagation in the time domain and a self-consistent program that uses a linear combination of atomic orbitals (LCAO). Our actual calculations employ the SIESTA program, which is designed to be fast and accurate for large clusters. We use the adiabatic local density approximation to account for exchange and correlation effects. Results are presented for the imaginary part of the linear polarizability, Im [\alpha(w)], and the dipole strength function, S(w), of C60 and Na8, compared to previous calculations and to experiment. We also show how to calculate the integrated frequency-dependent second order non-linear polarizability for the case of a step function electric field, \gamma_{step}(w), and present results for C60.Comment: 11 pages with 6 postscript figures. Submitted for publicatio

Dejar la profesión docente: análisis del papel del apoyo social, el engagement y la inteligencia emocional en la intención de abandono del profesorado

The study aimed to test mediator and moderator factors in the relationship between workplace social support (i.e., perceived support from colleagues and supervisors) and intentions to quit in a sample of teaching professionals. Specifically, utilizing job-demands-resources theory to focus on social support, we examined whether work engagement mediated the relationship between workplace social support and intentions to quit. Moreover, the potential moderator role of emotional intelligence in the proposed model was tested. The study sample comprised 1,297 teaching professionals (64.8% females) working as preschool, primary, and secondary teachers in several centers in eastern and southern Spain. The main results demonstrated that work engagement totally mediated the relationship between social support from colleagues/supervisors and intentions to quit. The findings showed that teachers’ levels of emotional intelligence significantly moderated the indirect paths between perceived support from colleagues/supervisors and intentions to quit. Teachers with the lowest levels of work engagement reported low support from colleagues or supervisors, togetherwith low emotional intelligence. Similarly, highest intentions to quit was reported by those teachers reporting low work engagement and low emotional intelligence. Finally, we discuss the relevance of these findings for basic and applied research seeking to retain a more engaged teaching force.Este estudio pretende evaluar los factores mediadores y moderadores en la relación entre el apoyo social organizacional (apoyo percibido de compañeros y supervisores) y los niveles de intención de abandono en una muestra de profesionales de la enseñanza. Específicamente, usando la teoría de demandas y recursos laborales y centrándose en el apoyo social, se examina si el engagement laboral media la relación entre apoyo social organizacional e intención de abandono. Además, se analiza el posible papel moderador de la inteligencia emocional en el modelo propuesto. La muestra del estudio esta compuesta por 1,297 profesionales de la enseñanza (64.8% mujeres) que trabajaban como docentes de Infantil, Primaria y Secundaria en varios centros del este y sur de España. Los resultados principales demostraron que el engagement laboral mediaba totalmente la relación entre el apoyo social de compañeros y supervisores y la intención de abandono. Los hallazgos mostraron que el nivel de inteligencia emocional de los docentes moderaba significativamente las relaciones indirectas entre el apoyo percibido de compañeros y supervisores y la intención de abandono. Los docentes con un nivel más bajo de engagement laboral informaron de bajo apoyo de compañeros y supervisores, así como de un bajo nivel de inteligencia emocional. Igualmente, aquellos docentes con bajo engagement laboral y baja inteligencia emocional informaron de mayores niveles de intención de abandono. Finalmente, se discute la importancia de estos hallazgos para la investigación básica y aplicada enfocada a la retención de un capital docente comprometido

Warp evidences in precessing galactic bar models

Most galaxies have a warped shape when they are seen from an edge-on point of view. The reason for this curious form is not completely known so far and in this work we apply dynamical system tools to contribute to its explanation. Starting from a simple, but realistic, model formed by a bar and a disc, we study the effect produced by a small misalignment between the angular momentum of the system and its angular velocity. To this end, a precession model is developed and considered, assuming that the bar behaves like a rigid body. After checking that the periodic orbits inside the bar keep being the skeleton of the inner system, even after inflicting a precession to the potential, we compute the invariant manifolds of the unstable periodic orbits departing from the equilibrium points at the ends of the bar to get evidences of their warped shapes. As it is well known, the invariant manifolds associated with these periodic orbits drive the arms and rings of barred galaxies and constitute the skeleton of these building blocks. Looking at them from a side-on viewpoint, we find that these manifolds present warped shapes as those recognized in observations. Lastly, test particle simulations have been performed to determine how the stars are affected by the applied precession, confirming this way the theoretical results obtained.Comment: 14 pages, 21 figures, Accepted for publication in A&A (15th Jan 2016

Adaptación a la Normativa vigente de los enlaces de Collbató y Esparreguera Nord en la Autovía A-2

El projecte d'adaptació a la normativa vigent del dos enllaços consecutius de la Autovia A-2 entre Collbató i Esparreguera Nord consisteix en la construcció de dues vies de servei, una en cada sentit, de connexió directa entre els dos enllaços i la millora d'aquests dos enllaços amb la construcció de tres rotondes amb el seu corresponent enllumenat i la millora de les condicions de drenatge, senyalització i abalisament.Amb aquest treballs es milloren les condicions de circulació i seguretat del trànsit així com les condicions d'explotació de la via

The Spanish Long-term Care System. ENEPRI Research Report No. 88, 15 June 2010

Launched in January 2009, ANCIEN is a research project that runs for a 44-month period and involves 20 partners from EU member states. The project principally concerns the future of long-term care (LTC) for the elderly in Europe and addresses two questions in particular: 1) How will need, demand, supply and use of LTC develop? 2) How do different systems of LTC perform? This case study on Spain is part of the first stage in the project aimed at collecting the basic data and necessary information to portray long-term care in each country of the EU. It will be followed by analysis and projections of future scenarios on long-term care needs, use, quality assurance and system performance. State-of-the-art demographic, epidemiologic and econometric modelling will be used to interpret and project needs, supply and use of long-term care over future time periods for different LTC systems

Studies of hadronic B decays to final states containing open charm mesons at LHCb

International audienceThe LHCb experiment is a general purpose forward spectrometer operating at the Large Hadron Collider, optimized for the study of B and D hadrons. LHCb collected 1.0 fb-1 of integrated luminosity during 2011 data taking, collecting unprecedented large samples of B hadron decays to final states involving charmed hadrons. These decays offer many complementary measurements of CP violation and CKM matrix parameters, and serve as a laboratory for testing effective theories of hadron decays. We present a selection of new world leading results in these types of decays, including first observations of new decay modes, world best branching ratio measurements and studies of resonant structure