Search results for "MULT"
showing 10 items of 17528 documents
Dynamical analysis of electron transport in RF cavities and photomultipliers tubes
2021
El objetivo de este trabajo es el estudio de la dinámica de haces y corrientes de electrones en cavidades aceleradoras de radiofrecuencia (RF) y en tubos fotomultiplicadores. Por una parte, los haces de electrones presentan una gran importancia histórica tanto en aplicaciones directas (televisiones, hornos de microondas, tratamiento del cáncer), como en la generación de radiación sincrotrón. La última generación de fuentes de rayos X muy brillantes se basa en los láseres de electrones libres (XFEL). No obstante, para producir los haces de electrones que emitirán dichos rayos X como radiación sincrotrón, se necesitan campos eléctricos de gran intensidad lo que produce que, debido a la emisió…
Cómo crear una actividad H5P de secuencia de imágenes en el Aula Virtual
2022
En este videotutorial se muestra cómo crear una actividad H5P de secuencia de imágenes (image sequencing) en el Aula Virtual (Moodle 3.11). Este trabajo forma parte del Proyecto de Innovación Docente Multimedia learning objects in moodle: Sustainable Development Goals (Ref: UV-SFPIE_PID-1640789) financiado por el Vicerrectorado de Ocupación y Programas Formativos de la Universitat de València en el curso académico 2021/2022.
Incorporación de elementos traza en conchas de melanopsis durante el crecimiento : posibilidades de aplicación en paleoecología
1988
El objetivo del presente trabajo está encaminado al estudio de las variaciones de oligoelementos en la concha de un gasterópodo de agua dulce del género Melanopsis (U dufouri (FERUSSAC), con dos morfotipos) y si éstas tienen que ver, o no, con la fluctuación de una serie de parámetros ambientales. La importancia del trabajo radica en la posibilidad de la aplicación paleoecológica de sus resultados, ya que el género MelanopsÍs tiene un abundante registro fósil durante todo el Cenozoico. La incorporación de oligoelementos se efectúa a medida que la concha va creciendo por acreción; lo ideal sería que tal crecimiento fuera circadiano, ya que se podría seguir día a día, sobre la concha, la fluc…
Western mediterranean archaeology: chemical element levels in archaeological materials as a methodological tool
2014
Una línea de desarrollo de las investigaciones arqueométricas, objeto de nuestro estudio, que presenta un amplia gama de potenciales aplicaciones metodológicas, al día de hoy conocidas solo en parte, es el análisis de los elementos químicos metálicos y no metálicos, ya sean los elementos mayoritarios, los elementos trazas y, más recientemente, los conocidos como “tierras raras” (por su nombre en inglés, Rare Earth Elements - REEs), que se han revelado útiles en nuestro estudio para la solución de algunos problemas arqueológicos. La posibilidad de poder actuar de forma sistemática, ha ayudado, por un lado, a conocer y desarrollar el potencial de estos elementos y, por otro, ha servido de sop…
Impact Evaluation of Innovative Selective Harmonic Mitigation Algorithm for Cascaded H-Bridge Inverter on IPMSM Drive Application
2021
This paper presents a detailed analysis of the use of a novel Harmonic Mitigation algorithm for Cascaded H-Bridge Multilevel Inverter in electrical drives for the transportation field. For this purpose, an enhanced mathematical model of Interior Permanent Magnet Synchronous Motor (IPMSM), that takes into account simultaneously saturation, cross-coupling, spatial harmonics, and iron loss effects, has been used. In detail, this model allows estimating accurately the efficiency and the torque ripple of the IPMSM, crucial parameters for transportation applications. Moreover, two traditional pulse width modulation strategies, Sinusoidal Phase-Shifted and Switching Frequency Optimal Phase-Shifted…
Prosociality and life satisfaction: A daily-diary investigation among Spanish university students
2018
Abstract With a diary study, we tested the positive effect of prosociality on life satisfaction. Fifty-six Spanish undergraduate students (45 females; Mage = 21.08 years) rated their life satisfaction, prosociality, self-esteem, and physical appearance for 5 consecutive days. Multilevel results indicated that within-individual positive deviations in prosociality (i.e., behaving more prosocial than usual) were uniquely and significantly associated with higher life satisfaction on that specific day. Students' self-esteem, physical appearance, and positive daily events were also predictive of life satisfaction. Exploratory analyses revealed that the positive effect of prosociality on life sati…
Is individual- and school-level teacher burnout reduced by proactive strategies?
2021
There is provisional evidence that burnout may be contagious within professional communities via the crossover effect, referring to an inter-individual transmission of stress or strain. However, our understanding of effective means for tackling stressors is scarce. We tested a two-level path model to explore the interrelation between teachers’ proactive self- and co-regulative strategies and experienced burnout. The study sample comprised 1531 Finnish in-service teachers from 75 schools. The results showed that burnout symptoms varied both between individual teachers and between professional communities. Self- and co-regulative strategies serve partly different functions in regulating teach…
Setting Individual Goals for Pupils with Profound Intellectual and Multiple Disabilities : Engaging in the Activity Area-Based Curriculum Making
2021
The activity area-based curriculum model (AACM) is used in the Finnish basic education to support pupils—most of whom have profound intellectual and multiple disabilities (PIMD)—who could benefit more from skills that advance independent life coping. Existing studies have concentrated mainly on the Individual Education Plan (IEP) goal-setting process for pupils with milder disabilities than PIMD and have consistently demonstrated significant barriers in the process. This study explores the collaborative IEP goal-setting process for pupils with the AACM. Sixty-five Finnish special education teachers using the AACM participated in the study. Semi-structured interviews were analysed with thema…
Setting individual goals for pupils with profound intellectual and multiple disabilities—engaging in the activity area-based curriculum making
2021
The activity area-based curriculum model (AACM) is used in the Finnish basic education to support pupils—most of whom have profound intellectual and multiple disabilities (PIMD)— who could benefit more from skills that advance independent life coping. Existing studies have concentrated mainly on the Individual Education Plan (IEP) goal-setting process for pupils with milder disabilities than PIMD and have consistently demonstrated significant barriers in the process. This study explores the collaborative IEP goal-setting process for pupils with the AACM. Sixty-five Finnish special education teachers using the AACM participated in the study. Semi-structured interviews were analysed with them…
“Dear Young People, don’t vote”. Seniors in political advertisements: irony and/or legitimation
2019
The widespread representation of older people in popular culture as passive and inert has been challenged in a range of recent studies and publications (Nussbaum / Coupland 2004, Caprara et al. 2013). In view of the increasing number of older adults in today’s society, the notion of aging has received significant attention in the public sphere where common assumptions and stereotypes are challenged and potential scenarios are presented. As it has been discussed from different academic perspectives over the past twenty years, older people’s collective condition is undergoing important sociological and cultural changes, making the elderly - among other things - an enticing political reservoir…