437 research outputs found

    El rol mediador de la motivación autodeterminada entre la satisfacción de las necesidades psicológicas básicas y el engagement deportivo

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    Background: Engagement could constitute a frame of reference for promoting positive experiences in sport, hence the importance of learning about what precedes it in order to promote its development. This study was conducted to examine the role of self-motivation as a mediator between basic psychological needs satisfaction and athlete engagement. Method: A sample of 426 male and female athletes from different sports were asked to complete three questionnaires measuring each of the study variables: The Basic Needs Satisfaction in Sport Scale, the Behavioral Regulation in Sport Questionnaire and the Athlete Engagement Questionnaire. A structural relationships model between the constructs analyzed was specifi ed and implemented. Results: High levels of self-motivation increased levels of athlete engagement and vice versa. Conclusion: Basic psychological needs satisfaction has a direct positive effect on athlete engagement and in turn, an indirect effect mediated by athletes’ self-motivationAntecedentes: el engagement es un marco de referencia para la promoción de experiencias positivas en el deporte, de ahí la importancia de conocer sus antecedentes con el objetivo de promover su desarrollo. El presente estudio se realizó con el propósito de examinar el papel de la motivación autodeterminada como mediadora entre la satisfacción de las necesidades psicológicas básicas y el engagement de los deportistas. Método: se utilizó una muestra de 426 deportistas, hombres y mujeres, de diferentes modalidades deportivas a los que les pidió que respondieran a tres cuestionarios que medían cada una de las variables de estudio: Basic Needs Satisfaction in Sport Scale, Behavioral Regulation in Sport Questionnaire y Athlete Engagement Questionnaire. Se especifi có un modelo de relaciones estructurales entre los constructos analizados. Resultados: niveles altos de motivación autodeterminada incrementan los niveles de engagement del deportista mientras que niveles bajos de motivación autodeterminada los debilitan. Conclusión: existe un efecto directo de tipo positivo de la satisfacción de las necesidades psicológicas básicas de los deportistas sobre su grado de engagement deportivo y a la vez un efecto indirecto mediado por su motivación autodeterminadaThis work was supported by the Ministry of Economy and Competitiveness of Spain under Grant PSI2014-56935-PS

    Basic Psychological Needs, Burnout and Engagement in Sport: The Mediating Role of Motivation Regulation

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    The purpose of the present research was to analyze the mediating role of motivational regulation between the satisfaction of basic psychological needs and burnout and engagement in athletes. From different sports 1011 young Spanish athletes participated in the study. Participants completed several measurement instruments concerning: the Basic Needs Satisfaction in Sport Scale, Behavioral Regulation in Sport Questionnaire, Athlete Burnout Questionnaire and Athlete Engagement Questionnaire. The results of structural equation modeling showed that the satisfaction of basic psychological needs has direct effects on burnout and engagement: a negative effect on athlete burnout (–0.49, p < 0.001) and a positive effect on engagement (0.54, p < 0.001). In addition, the satisfaction of basic psychological needs has a partial indirect effect over these variables in the same direction mediated by the self-determined degree of motivation. Thus, low levels of self-regulated motivation are positively related to burnout, but high levels of self-determined motivation are not. The same was observed with engagement, but vice versa: high levels of self-determined motivation are positively related to athlete engagement, but low levels of self-determined motivation are not. The proposed model explained 37% of the variance of burnout and 51% of the variance of engagementThis research was funded by Ministerio de Economía y Competitividad of Spain, grant number PSI2014-56935-PS

    Attention in conservatoire students using body percussion following the BAPNE method

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    The aim of the current investigation is to show by means of a quantitative study the possible improvement in attention levels and to discover if anxiety levels can be reduced in elementary grade students in a music school using psychomotor stimulation in practice of body percussion following the BAPNE method. The study has been based on a protocol with a total of N=61 subjects, divided between an experimental group and a control group, all with similar socioeconomic and educational characteristics in the Valencian Community (Spain). The intervention was carried out across 24 weeks using a programme of Neuromotricity following the BAPNE method. The experimental group took part for 50 minutes twice a week. The control group continued with their normal routines and were not subject to any change in their academic and cognitive development. The methodology used was basic quasi-experimental in its design using collection of pre- and post-test sample measurements, before and after the method was implemented. Subsequently, statistical analysis was carried out. This was factorial in design and considered the measurements taken before and after. Analysis of the results shows a notable improvement in cognitive skills involving attention after the post-test of the experimental group. A reduction in levels of anxiety can also be seen. Both are key factors in effective teaching and learning

    Implementación de un sistema de inteligencia de negocios. Escuela de Ciencias de la Administración UNED

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    Business intelligence is a relevant concept in the business field. Thanks to the current technology achievements, there are a new broader set of options that allows to establish direct contact with internal and external clients of the organization and provide key information that helps the decision making and strategic planning processes. Universities are no exception to these global changes, and it has turn increasingly necessary to implement Business intelligence tools to optimize all the resources available, to measure and accomplish the organization KPI´s. This article presents an experience on the implementation of a Business Intelligence system in the UNED´s Costa Rica Business School. The experience began in 2020 as a project, with the goal of detecting the needs that this type of system must address. The results came through a mixed methodology and the use of different applied online instruments on the sectors involved (professional sector, students, and specialist in the field). Among the main findings stands the relevance of the implementation of this technological alternative, as well as the fact of having a platform for its proper management. It is also important that the organization is prepared at a technical and cultural level to be able to implement the BI solution.La inteligencia de negocios resulta un término de actualidad en el ámbito empresarial, pero gracias al avance de las tecnologías genera una serie de opciones para establecer contacto directo con los futuros clientes internos y externos a la organización, en la educación superior no es una excepción, dado que se es cada vez más necesaria la optimización de todos los recursos disponibles por la entidad, el hecho de contar con indicadores y que estos sean de fácil análisis por medio de programas y hardware facilita la toma de decisiones. Este artículo presenta una experiencia sobre la implementación de un sistema de inteligencia de negocios en la Escuela de Ciencias de la Administración de la UNED de Costa Rica, la experiencia da inicio en el 2020 como un proyecto, el cual ha sido generado por diferentes actores para detectar las necesidades que este tipo de sistema debe abordar, por medio de una metodología mixta y el uso de diferentes instrumentos en línea aplicados a los actores de interés del proyecto (profesionales, estudiantes y especialistas). Entre los principales hallazgos encontrados está la pertinencia en la implementación de esta alternativa tecnológica, así como el hecho de contar con una plataforma para su adecuada gestión. Adicionalmente, es importante que la organización se encuentre preparada a nivel técnico y desde la perspectiva de cultura organizacional para poder implementar la solución

    Estudio de electrocatalizadores core-shell Au-Pd heteroestructurados para celdas de combustible tipo membrana de intercambio protónico

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    En una celda de combustible de membrana de intercambio protónico (PEMFC) se llevaron a cabo dos reacciones electroquímicas, una es la reacción de reducción de oxígeno (ORR) que presenta una cinética lenta, y por lo tanto tiene un impacto negativo en la eficiencia, el rendimiento y la estabilidad en la PEMFC. Sin embargo, la cinética de la ORR, fue mejorada al utilizar los materiales adecuados para reducir el sobre potencial y aumentar la actividad electroquímica. Los estudios recientes se han centrado en el uso de nanopartículas Core-Shell con diferentes morfologías para formar electrocatalizadores, sin embargo, para su uso en la ORR en medio ácido no se ha establecido el impacto en la eficiencia, rendimiento y estabilidad de una PEMFC. En este trabajo se propone sintetizar heteroestructuras Core-Shell Au-Pd (octaédrica, cuboctaédrica y cubica cóncava) así como realizar sus caracterización y evaluación como electrocatalizadores soportados sobre Carbón Vulcan para su uso en una PEMFC.In a fuel cell proton exchange membrane (PEMFC) are carried out two electrochemical reactions, one is the oxygen reduction reaction (ORR) having slow kinetics, and therefore has a negative impact on efficiency, performance and stability in the PEMFC. However, the kinetics of the ORR, can be improved by using suitable materials to reduce the over potential and increasing electrochemical activity. Recent studies have focused on the use of core-shell nanoparticles with different morphologies to form electrocatalysts, however for ORR use in acid medium has not been established the impact on efficiency, performance and stability of a PEMFC. This paper aims to synthesize heterostructures Core-Shell Au-Pd (octahedral, cubic-octahedral and concave cubes) as well as perform their characterization and evaluation as electrocatalysts supported on carbon Vulcan in a PEMFC

    Measurement of the polarisation of W bosons produced with large transverse momentum in pp collisions at sqrt(s) = 7 TeV with the ATLAS experiment

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    This paper describes an analysis of the angular distribution of W->enu and W->munu decays, using data from pp collisions at sqrt(s) = 7 TeV recorded with the ATLAS detector at the LHC in 2010, corresponding to an integrated luminosity of about 35 pb^-1. Using the decay lepton transverse momentum and the missing transverse energy, the W decay angular distribution projected onto the transverse plane is obtained and analysed in terms of helicity fractions f0, fL and fR over two ranges of W transverse momentum (ptw): 35 < ptw < 50 GeV and ptw > 50 GeV. Good agreement is found with theoretical predictions. For ptw > 50 GeV, the values of f0 and fL-fR, averaged over charge and lepton flavour, are measured to be : f0 = 0.127 +/- 0.030 +/- 0.108 and fL-fR = 0.252 +/- 0.017 +/- 0.030, where the first uncertainties are statistical, and the second include all systematic effects.Comment: 19 pages plus author list (34 pages total), 9 figures, 11 tables, revised author list, matches European Journal of Physics C versio

    Observation of a new chi_b state in radiative transitions to Upsilon(1S) and Upsilon(2S) at ATLAS

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    The chi_b(nP) quarkonium states are produced in proton-proton collisions at the Large Hadron Collider (LHC) at sqrt(s) = 7 TeV and recorded by the ATLAS detector. Using a data sample corresponding to an integrated luminosity of 4.4 fb^-1, these states are reconstructed through their radiative decays to Upsilon(1S,2S) with Upsilon->mu+mu-. In addition to the mass peaks corresponding to the decay modes chi_b(1P,2P)->Upsilon(1S)gamma, a new structure centered at a mass of 10.530+/-0.005 (stat.)+/-0.009 (syst.) GeV is also observed, in both the Upsilon(1S)gamma and Upsilon(2S)gamma decay modes. This is interpreted as the chi_b(3P) system.Comment: 5 pages plus author list (18 pages total), 2 figures, 1 table, corrected author list, matches final version in Physical Review Letter

    Search for displaced vertices arising from decays of new heavy particles in 7 TeV pp collisions at ATLAS

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    We present the results of a search for new, heavy particles that decay at a significant distance from their production point into a final state containing charged hadrons in association with a high-momentum muon. The search is conducted in a pp-collision data sample with a center-of-mass energy of 7 TeV and an integrated luminosity of 33 pb^-1 collected in 2010 by the ATLAS detector operating at the Large Hadron Collider. Production of such particles is expected in various scenarios of physics beyond the standard model. We observe no signal and place limits on the production cross-section of supersymmetric particles in an R-parity-violating scenario as a function of the neutralino lifetime. Limits are presented for different squark and neutralino masses, enabling extension of the limits to a variety of other models.Comment: 8 pages plus author list (20 pages total), 8 figures, 1 table, final version to appear in Physics Letters

    Standalone vertex finding in the ATLAS muon spectrometer

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    A dedicated reconstruction algorithm to find decay vertices in the ATLAS muon spectrometer is presented. The algorithm searches the region just upstream of or inside the muon spectrometer volume for multi-particle vertices that originate from the decay of particles with long decay paths. The performance of the algorithm is evaluated using both a sample of simulated Higgs boson events, in which the Higgs boson decays to long-lived neutral particles that in turn decay to bbar b final states, and pp collision data at √s = 7 TeV collected with the ATLAS detector at the LHC during 2011

    Measurements of Higgs boson production and couplings in diboson final states with the ATLAS detector at the LHC

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    Measurements are presented of production properties and couplings of the recently discovered Higgs boson using the decays into boson pairs, H →γ γ, H → Z Z∗ →4l and H →W W∗ →lνlν. The results are based on the complete pp collision data sample recorded by the ATLAS experiment at the CERN Large Hadron Collider at centre-of-mass energies of √s = 7 TeV and √s = 8 TeV, corresponding to an integrated luminosity of about 25 fb−1. Evidence for Higgs boson production through vector-boson fusion is reported. Results of combined fits probing Higgs boson couplings to fermions and bosons, as well as anomalous contributions to loop-induced production and decay modes, are presented. All measurements are consistent with expectations for the Standard Model Higgs boson
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