Las redes sociales en el nivel de rendimiento académico de la asignatura de Informática I de los estudiantes del Instituto de Educación Superior Tecnológico Privado Juan Bosco de Huánuco – 2013

La investigación tiene como finalidad, determinar la influencia de las redes sociales en el rendimiento académico de la asignatura de Informática I en los estudiantes del Instituto de Educación Superior tecnológico Privado Juan Bosco de Huánuco durante el periodo académico 2013. La investigación por su finalidad es de tipo aplicada, en razón que se manipula la variable independiente; y asume el diseño experimental de tipo cuasiexperimental, debido a que establece la influencia de una a otra variable. La muestra estuvo conformada 85 estudiantes establecidos en dos grupos; grupo experimental (Esp. Secretariado ejecutivo) = 50 estudiantes y el grupo control (Esp. Computación e informática) = 35 estudiantes, la muestra fue no probabilística de tipo intencionado. Se aplicaron dos instrumentos: una encuesta de autoevaluación del empleo de las redes sociales, consta de 12 ítems con escala de Likert y una prueba de rendimiento – aprendizaje de la asignatura de Informática I que consta de 20 ítems; el nivel de confiabilidad es de 0,77 respectivamente. Los resultados demuestran que existe influencia positiva del empleo de las redes sociales en el rendimiento académico de la asignatura de Informática I, pasando de un 9,50 puntos a un 11,88 puntos en promedio con una diferencia positiva de 1,01 puntos de mejora en promedio en los estudiantes objeto de estudio.Universidad Nacional de Educación Enrique Guzmán y Valle.Tesi

Efecto de la dilución de chicha de maíz (Zea mays) y caudal de ingreso a un sistema de irradiación ultravioleta en el contenido de bacterias mesófilas

Se evaluó el efecto de la dilución y caudal de entrada de la chicha de maíz  en la mortalidad de bacterias mesófilas viables. Se utilizó un equipo de irradiación ultravioleta UV, construida de tubo de PVC de 2 pulgadas con un fluorescente UV colocado concéntricamente al tubo de PVC. Se introdujo al equipo chicha sin diluir (1/0) y diluida con agua destilada al 50% (1/1), con dos caudales (83 y 166 mL/s). La experiencia se evaluó a través de 4 tratamientos con dos repeticiones (8 unidades experimentales), configurándose un diseño factorial incompleto, con 2 factores (k=2), 2 niveles para cada factor y 2 replicas para cada experimento. Con los caudales de entrada de chicha de maíz de 166 y 83 mL/s con diluciones (1/1) y (1/0), se produjo una disminución de 3.5 a 4.0 veces respectivamente en el contenido de bacterias mesófilas viables

Modelling Acacia saligna invasion in a large Mediterranean island using PAB factors: A tool for implementing the European legislation on invasive species

The present study aimed to investigate the role of propagule pressure (P), abiotic (A), and biotic (B) factors (collectively indicated as PAB) on the suitability of the Mediterranean island of Sardinia (Italy) to be invaded by the tree Acacia saligna, recently included in the list of invasive alien species of European Union concern. To this aim, a binomial Generalized Linear Model was applied for disentangling the relationship between 432 A. saligna occurrence records and 10 thematic layers, at high-resolution (10 x10 m), used as proxies for the 3 categories of PAB variables. The 432 occurrence records of A. saligna were periodically monitored (period 2000–2018) to check the persistence of the populations and their invasive status. The predictive power of the model was evaluated by computing the mean of the AUC scores, through cross-fold validation. The model adequately described how the PAB factors influence the presence of A. saligna which is mainly shaped by abiotic factors such as topography, and biotic factors such as the presence of woody dune vegetation, and to a lesser extent by other predictors. The projection of the model to the whole island clearly shows that suitability varies at the landscape level due to the variation of the PAB across the territory. The probability of A. saligna occurrence near the coast is higher in sand dunes. In the internal areas of the island it occurs close to the roads and urban areas. This study and the tested methodology could represent a suitable tool to prioritize areas for the monitoring of A. saligna to meet the requirements of the Regulation (EU) No. 1143/2014 on Invasive Alien Species (the IAS Regulation)

Mediating role of inclusive leadership in innovative teaching behavior

Purpose: The prime purpose of current research is to investigate the mediating role of inclusive leadership between teaching policy, teachingresources,and innovativeteaching behavior. Design/methodology/approach: This research has collected data on a Likert scale questionnaire and the structural equation modeling technique is applied in data analysis.The population of this research are teachers in Peru. Findings: The findings of this research highlighted that the mediating role of inclusive leadership is significant between teaching policy, teachingresources,and innovative teaching behavior.Furthermore, the research highlighted that the direct impact of teaching policy, teachingresources, and inclusiveleadership are significant in innovative teaching behavior.Research limitations/implications: This research has theoretical implications as it has enhanced the model of innovative teaching with mediating role of inclusive leadership. Furthermore, the practical implications of this research can improve teaching behavior innovatively by adopting new policies for teaching and utilizing appropriate resources for it. Originality/value: This research is designed on the original idea to improve the model of innovative teaching behavior with inclusive leadership to provide remarkable implications in the knowledge and practice.Campus Chimbot

The role of innovation adoption and circular economy readiness on the environmental sustainability: moderating impact of organizational support

Environmental sustainability is currently the most critical demand on a global scale, and it may be reached through innovation and a circular economy. This component demands the aim of policymakers and researchers. Therefore, this study investigates the effect of innovation adoption and circular economy readiness on Peru's environmental sustainability. The research also examines the moderating effect of organizational support on innovation adoption, preparation for the circular economy, and environmental sustainability in Peru. Using questionnaires, the researchers collected and evaluated the data using smart PLS. The results demonstrated a positive relationship between innovation adoption, circular economy readiness, and environmental sustainability in Peru. The results also demonstrated that organizational support moderates’ innovation uptake, preparation for the circular economy, and environmental sustainability in Peru. The research aids policymakers in formulating environmental sustainability strategies based on innovation uptake and circular economy preparedness.Campus Chimbot

Memoria del III Coloquio Internacional sobre Diversidad Cultural y Estudios Regionales

Del 05 al 07 de noviembre de 2014 se llevó a cabo en la Sede de Occidente de la Universidad de Costa Rica, el III Coloquio Internacional sobre Diversidad Cultural y Estudios Regionales, dicado a Julieta Dobles Izaguirre, Premio Nacional de Cultura Magón, 2013. Este III Coloquio Internacional fue organizado por el Centro de Investigaciones sobre Diversidad Cultural y Estudios Regionales (CIDICER), primer Centro de Investigaciones de una Sede Regional de la Universidad de Costa Rica. Se contó con personas investigacdoras nacionales e internacionales quienes presentaron sobre temas relacionados con la diversidad cultural y los estudios regionales.Universidad de Costa Rica/[836-B4-702]/UCR/Costa RicaUCR::Sedes Regionales::Sede de Occidente::Recinto San Ramón::Centro de Investigaciones sobre Diversidad Cultural y Estudios Regionales (CIDICER

Plant–environment interactions through a functional traits perspective: a review of Italian studies

Italy is among the European countries with the greatest plant diversity due to both a great environmental heterogeneity and a long history of man–environment interactions. Trait-based approaches to ecological studies have developed greatly over recent decades worldwide, although several issues concerning the relationships between plant functional traits and the environment still lack sufficient empirical evaluation. To draw insights on the association between plant functional traits and direct and indirect human and natural pressures on the environmental drivers, this article summarizes the existing knowledge on this topic by reviewing the results of studies performed in Italy adopting a functional trait approach on vascular plants, bryophytes and lichens. Although we recorded trait measurements for 1418 taxa, our review highlighted some major gaps in plant traits knowledge: Mediterranean ecosystems are poorly represented; traits related to belowground organs are still overlooked; traits measurements for bryophytes and lichens are lacking. Finally, intraspecific variation has been little studied at community level so far. We conclude by highlighting the need for approaches evaluating trait–environment relationship at large spatial and temporal scales and the need of a more effective contribution to online databases to tie more firmly Italian researchers to international scientific networks on plant traits

A study of CP violation in B-+/- -> DK +/- and B-+/- -> D pi(+/-) decays with D -> (KSK +/-)-K-0 pi(-/+) final states

A first study of CP violation in the decay modes $B^\pm\to [K^0_{\rm S} K^\pm \pi^\mp]_D h^\pm$ and $B^\pm\to [K^0_{\rm S} K^\mp \pi^\pm]_D h^\pm$, where $h$ labels a $K$ or $\pi$ meson and $D$ labels a $D^0$ or $\overline{D}^0$ meson, is performed. The analysis uses the LHCb data set collected in $pp$ collisions, corresponding to an integrated luminosity of 3 fb$^{-1}$. The analysis is sensitive to the CP-violating CKM phase $\gamma$ through seven observables: one charge asymmetry in each of the four modes and three ratios of the charge-integrated yields. The results are consistent with measurements of $\gamma$ using other decay modes