356 research outputs found

    La internet como herramienta para la mejora del proceso de enseñanza y aprendizaje en la Universidad de Managua

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    El presente artículo, cuyo contexto de investigación es la Universidad de Managua (UdeM), plantea como estrategia alcanzar mayor pertinencia en educación en cuanto al desarrollo de las técnicas de información y comunicación (TIC), con el fin de apoyar el proceso de enseñanza y aprendizaje. La institución ha invertido en infraestructura tecnológica, no obstante, se percibe que sus estudiantes no realizan un uso apropiado de estas para mejorar su desempeño académico; un porcentaje utiliza las TIC como elemento distractor para su formación, evidencias a partir de la observación directa y datos estadísticos generados en los centros tecnológicos, de ahí la importancia de diagnosticar el uso de internet en el estudiantado en la modalidad dominical de la UdeM. Los principales resultados muestran que el uso de internet como elemento complementario es una opción válida en la UdeM, pues el 73.5 % de estudiantes tiene acceso a computadora en su casa, el 65.3 % tiene Internet en su casa y el 41.8 % a través de celular

    Calidad del Servicio Bibliotecario: Universidad de Managua

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    The research proposes a set of actions to improve the quality of services in the Library of the University of Managua (UdeM). The study assumes the mixed approach with the use of quali-quanti cutting methods. To identify opportunities for improvement in the UdeM library service, at the beginning of the research the key variables are defined: Management, Communication, Human Resources, Physical and technological infrastructure. Later, the diagnosis was made, the main opportunities are declared, which served to shape actions by variables to improve the quality of services in the UdeM Library, which have been developing since 2010. In addition, the assessment of indicators to evaluate the execution of the actions, for the continuous improvement of the quality of the institution and the implementation of a quality management system

    La internet como herramienta para la mejora del proceso de enseñanza y aprendizaje en la Universidad de Managua

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    El presente artículo, cuyo contexto de investigación es la Universidad de Managua (UdeM), plantea como estrategia alcanzar mayor pertinencia en educación en cuanto al desarrollo de las técnicas de información y comunicación (TIC), con el fin de apoyar el proceso de enseñanza y aprendizaje. La institución ha invertido en infraestructura tecnológica, no obstante, se percibe que sus estudiantes no realizan un uso apropiado de estas para mejorar su desempeño académico; un porcentaje utiliza las TIC como elemento distractor para su formación, evidencias a partir de la observación directa y datos estadísticos generados en los centros tecnológicos, de ahí la importancia de diagnosticar el uso de internet en el estudiantado en la modalidad dominical de la UdeM. Los principales resultados muestran que el uso de internet como elemento complementario es una opción válida en la UdeM, pues el 73.5 % de estudiantes tiene acceso a computadora en su casa, el 65.3 % tiene Internet en su casa y el 41.8 % a través de celular

    Efecto de una guía de intervención grupal en las habilidades sociales, en una muestra de adolescentes colombianos

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    19 páginasThe objective of this study was to determine the effect of the intervention guide "Social Skills in Adolescents, a Group Intervention Guide designed for adolescents from 12 to 17 years old", in a public educational institution in the municipality of Chía, Colombia. The sample of participants consisted of 56 young people, who were divided into an experimental group to whom the guide was applied, and a comparison group, who did not receive any training. Goldstein's Social Skills Checklist was applied pre-test and post-test to both groups in order to determine the effects of the guide. The results showed significant differences in the measurements of the experimental group, evidencing an improvement in social skills in this group, while in the comparison group there were no significant changes, demonstrating the effectiveness of the guide, recommending its replication in other contexts.Diseñar y validar una prueba psicométrica para la medición de actitudes de jóvenes universitarios colombianos hacia la homosexualidad. MÉTODO: Se llevó a cabo una revisión teórica para conformar los componentes de la escala, se elaboró la tabla de especificaciones y luego la construcción de los reactivos. Posteriormente. se realizó un proceso de validación de contenido por jueces expertos, se hicieron los ajustes correspondientes y se realizó la aplicación inicial con 200 participantes, obteniendo los análisis factoriales exploratorios y los análisis de confiabilidad, y luego la segunda aplicación a 179 estudiantes para obtener el análisis factorial confirmatorio. RESULTADOS: se obtuvo una escala con 18 ítems agrupados en cuatro factores que explican el 56,2% de la varianza total acumulada, con un modelo factorial que presenta adecuados índices de bondad de ajuste, un alfa de Cronbach de 0,926. DISCUSIÓN: se obtuvo una escala válida, confiable y consistente para evaluar las actitudes de estudiantes universitarios hacia la homosexualida

    Multiplicity dependence of light (anti-)nuclei production in p–Pb collisions at sNN=5.02 TeV

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    The measurement of the deuteron and anti-deuteron production in the rapidity range −1 < y < 0 as a function of transverse momentum and event multiplicity in p–Pb collisions at √sNN = 5.02 TeV is presented. (Anti-)deuterons are identified via their specific energy loss dE/dx and via their time-of- flight. Their production in p–Pb collisions is compared to pp and Pb–Pb collisions and is discussed within the context of thermal and coalescence models. The ratio of integrated yields of deuterons to protons (d/p) shows a significant increase as a function of the charged-particle multiplicity of the event starting from values similar to those observed in pp collisions at low multiplicities and approaching those observed in Pb–Pb collisions at high multiplicities. The mean transverse particle momenta are extracted from the deuteron spectra and the values are similar to those obtained for p and particles. Thus, deuteron spectra do not follow mass ordering. This behaviour is in contrast to the trend observed for non-composite particles in p–Pb collisions. In addition, the production of the rare 3He and 3He nuclei has been studied. The spectrum corresponding to all non-single diffractive p-Pb collisions is obtained in the rapidity window −1 < y < 0 and the pT-integrated yield dN/dy is extracted. It is found that the yields of protons, deuterons, and 3He, normalised by the spin degeneracy factor, follow an exponential decrease with mass number

    Measurement of beauty-strange meson production in Pb–Pb collisions at sNN\sqrt{s_{NN}} = 5.02TeV via non-prompt Ds+ mesons

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    Study of charged particle production at high pT using event topology in pp, p–Pb and Pb–Pb collisions at <math altimg="si1.svg"><msqrt><mrow><msub><mrow><mi>s</mi></mrow><mrow><mi mathvariant="normal">NN</mi></mrow></msub></mrow></msqrt><mo linebreak="goodbreak" linebreakstyle="after">=</mo><mn>5.02</mn></math>TeV

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    International audienceThis letter reports measurements which characterize the underlying event associated with hard scatterings at mid-pseudorapidity (|η|&lt;0.8) in pp, p–Pb and Pb–Pb collisions at centre-of-mass energy per nucleon pair, sNN=5.02TeV. The measurements are performed with ALICE at the LHC. Different multiplicity classes are defined based on the event activity measured at forward rapidities. The hard scatterings are identified by the leading particle defined as the charged particle with the largest transverse momentum (pT) in the collision and having 8 &lt;pT&lt;15GeV/c. The pT spectra of associated particles (0.5 ≤pT&lt;6GeV/c) are measured in different azimuthal regions defined with respect to the leading particle direction: toward, transverse, and away. The associated charged particle yields in the transverse region are subtracted from those of the away and toward regions. The remaining jet-like yields are reported as a function of the multiplicity measured in the transverse region. The measurements show a suppression of the jet-like yield in the away region and an enhancement of high-pT associated particles in the toward region in central Pb–Pb collisions, as compared to minimum-bias pp collisions. These observations are consistent with previous measurements that used two-particle correlations, and with an interpretation in terms of parton energy loss in a high-density quark gluon plasma. These yield modifications vanish in peripheral Pb–Pb collisions and are not observed in either high-multiplicity pp or p–Pb collisions

    Closing in on critical net-baryon fluctuations at LHC energies: Cumulants up to third order in Pb–Pb collisions

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    System-size dependence of the charged-particle pseudorapidity density at <math altimg="si1.svg"><msqrt><mrow><msub><mrow><mi>s</mi></mrow><mrow><mi mathvariant="normal">NN</mi></mrow></msub></mrow></msqrt><mo linebreak="goodbreak" linebreakstyle="after">=</mo><mn>5.02</mn><mspace width="0.2em"/><mtext>TeV</mtext></math> for pp, pPb, and PbPb collisions

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    International audienceWe present the first systematic comparison of the charged-particle pseudorapidity densities for three widely different collision systems, pp, pPb, and PbPb, at the top energy of the Large Hadron Collider (sNN=5.02TeV) measured over a wide pseudorapidity range (−3.5&lt;η&lt;5), the widest possible among the four experiments at that facility. The systematic uncertainties are minimised since the measurements are recorded by the same experimental apparatus (ALICE). The distributions for pPb and PbPb collisions are determined as a function of the centrality of the collisions, while results from pp collisions are reported for inelastic events with at least one charged particle at midrapidity. The charged-particle pseudorapidity densities are, under simple and robust assumptions, transformed to charged-particle rapidity densities. This allows for the calculation and the presentation of the evolution of the width of the rapidity distributions and of a lower bound on the Bjorken energy density, as a function of the number of participants in all three collision systems. We find a decreasing width of the particle production, and roughly a smooth ten fold increase in the energy density, as the system size grows, which is consistent with a gradually higher dense phase of matter

    First measurement of Ωc0_c^0 production in pp collisions at s\sqrt{s} = 13 TeV

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