299 research outputs found
Estrategias de búsqueda para la psicología de la competición deportiva en Google académico vs. Medline, Sportdiscus y Psycinfo
Searching Strategies in data bases Medline, SportDiscus, Psycinfo and the search engine Google Scholar presents a set of peculiarities in retrieving information about sport competition psychology. We have consulted teachers who teach such item in Departamento de Educación Física de la ULPGC to establish the terminology in Spanish and English. The documents recovered are mostly articles in journals from anglophone area. As the results are more relevant to retrieve such information and a comparison between what recovered from the specialized databases and Google Schola
Visores 3D, servicios interoperables e información geográfica: aplicaciones en ciencias de la tierra
Esta comunicación muestra los resultados de incorporar la geovisualización 3D y el tiempo (4ª dimensión) a la
información geográfica (mapas temáticos, MDE, etc) y, específicamente, a los servicios interoperables a través de
Internet, aplicados al campo de las ciencias naturales. Para ello se utiliza el visor Condor (con versiones desktop y
cliente-web) desarrollado informáticamente por la empresa Elimco Sistemas, con la que el Grupo de Investigación al
que pertenecen los autores de la Universidad de Sevilla mantiene una estrecha colaboración para el diseño de sus
funcionalidades y el tratamiento semiológico de los datos geográficos. Se han elegido dos áreas específicas del
territorio de Andalucía: un sector litoral y marino (tramo Algeciras- Estepona) y un área de alta montaña (Sierra
Nevada). Los resultados reflejan el interés de estos visores para la visualización multitemporal y 3D de dos medios
extremos (el medio submarino y el alpino) que, al incorporar algunas sencillas herramientas interactivas de análisis
de los datos (cálculo de perfiles topográficos, simulación de subidas del nivel del mar, calculo de pendientes, etc.),
les proporcionan un claro valor añadido para la transmisión del conocimiento en el medio natural.The aim of this paper is to show the results of incorporating the 3D geovisualization and the time (as a 4th
dimension) to the geographical information and, specifically, to the interoperable geoservices by means of the
Internet, applied to the field of Natural Sciences. The Condor geoviewer (with desktop and web-client versions) is a
software developed by Elimco Sistemas, a company which keeps a strong relationship with the authors focussed on
the design of the functionalities and the usage of graphic semiology to the geographical data. In order to make a test
of these geoviewer capabilities, two areas –a coastal and marine one and an alpine geomorphological area- were
chosen. The results show the potentialities of this tool in the 3D and multitemporal geovisualization applied to two
extreme environments (such as alpine and submerged areas). An obvious additional advantage in the transmission
of knowledge of natural environments is given to the geoviewer by means of the addition of some user-friendly
interactive analysis tools (real time calculations of slope and shades, topographic profiles, etc)
An empirical note about estimation and forecasting Latin American Forex returns volatility : the role of long memory and random level shifts components
A set of RLS-type models with ARMA and ARFIMA dynamics is estimated and compared in a forecasting exercise with ARFIMA, GARCH and FIGARCH models. It is an extension of Rodríguez (N Am J Econ Financ 42:393–420, 2017) but using more countries and working with squared returns in the forecasting exercise. The estimation results show: (i) existence of RLS; (ii) measurement errors except in Chile and Colombia. Regarding the fractional parameter, the estimates are quite small indicating the possible absence of long memory with possible exceptions of Chile and Colombia. The forecast exercise using the 10% MCS of Hansen et al. (Econometrica 79:453–497, 2011) and the ratios of MSFE indicate absence of the RLS-ARFIMA models while RLS-ARMA models are selected. In general, the results of the estimations and forecasts indicate probable absence of long memory or its small magnitude, which would makes this characteristic not only unnecessary but also irrelevant to capture the variations of the low frequencies of the series.info:eu-repo/semantics/publishedVersio
Web-based Geotools for knowledge, dissemination and governance of coastal zones: the 3D web- viewer for the coast of Andalucia
La dificultad de integración de la información geográfica (territorial, ambiental, socio-económica, etc) para
la adecuada gestión de los espacios litorales (problema crónico de los espacios costeros) se ha beneficiado de los
espectaculares avances llevados a cabo con la puesta en funcionamiento de IDEs (normalización de datos) y la difusión
de datos como “servicios interoperables” (INSPIRE), hoy fácilmente accesibles (IDEE, IDE Andalucia, etc). Existen
diferentes propuestas de visores de información geográfica, así como la posibilidad de utilizar otros web (Google Maps)
y “virtual globes” (Google Earth, etc) generalistas. En esta comunicación, se presentan las capacidades de un visor
geográfico 2D/3D desarrollado por la empresa Elimco Sistemas en colaboración con la Universidad de Sevilla, que
combina una versión desktop y otra web, desarrollado para el Subsistema de Litoral de Andalucía (SSLMM) por la
Consejería de Medio Ambiente. El potencial gráfico del visor, la disponibilidad actual de datos y su facilidad de uso
facilitarían las labores de concienciación pública y conocimiento del medio litoral. Adicionalmente, incorpora
herramientas técnicas (creación de perfiles, digitalización, simulación de inundaciones, etc), que aumentan su utilidad y
versatilidad para usuarios más técnicos.The great technological advances driven by the Spatial Data Infrastructure (SDI) and the information
spreading such as ‘interoperable services’ (INSTIRE directive), at present easily accessible (IDEE, IDEAndalucia),
have benefited the integration of geographical information (e.g. territorial, environmental, socio-economical) for the
suitable coastal areas management (which have been historically difficult on these areas). Currently, there are different
viewer purposes of geographical information: web viewers (such as ‘google map’ for instance) and virtual globes (such
as ‘google Earth’). In this paper will be shown the capabilities of 2D/3D geographical viewer developed by the
company ‘Elimco Sistemas’ in collaboration with University of Seville, which combines a desktop and a web version
that were developed for the ‘Andalusian Litoral Subsystem’ (coastal information subsystem in Andalucia developed by
the regional environmental ministry). The graphic potential of the viewer, the current data availability and the easy use
for public users will facilitate public awareness about coastal environments and will provide better knowledge of these
areas. Additionally, these viewers also have advance tools (e.g. profile creation, digitising, and flooding simulations)
that can increment the use possibilities for technical purposes and can also be used by technicians and managers
Dynamical phases transitions in periodically driven Bardeen-Cooper-Schrieffer systems
We present a systematic study of the dynamical phase diagram of a
periodically driven BCS system as a function of drive strength and frequency.
Three different driving mechanism are considered and compared: oscillating
density of states, oscillating pairing interaction and oscillating external
paring field. We identify the locus in parameter space of parametric resonances
and four dynamical phases: Rabi-Higgs, gapless, synchronized Higgs and
time-crystal. We demonstrate that the main features of the phase diagram are
quite robust to different driving protocols and discuss the order of the
transitions. By mapping the BCS problem to a collection of nonlinear and
interacting classical oscillators, we shed light on the origin of
time-crsytalline phases and parametric resonances appearing for subgap
excitations.Comment: 15 pages, including 12 figures, appendix and reference
Desarrollo de un programa de educación nutricional y valoración del cambio de hábitos alimentarios saludables en una población de estudiantes de Enseñanza Secundaria Obligatoria
[email protected]ón: La adolescencia se considera un periodo crítico en la adquisición y configuración de hábitos alimentarios y de un estilo de vida saludable para el futuro joven y que probablemente serán perdurables en la edad adulta. La obesidad infantil y juvenil es un problema de Salud Pública cuyo control pasa necesariamente por la prevención y la educación nutricional.
Objetivos: Evaluar el estado nutricional de los adolescentes y determinar la proporción con sobrepeso u obesidad y establecer un programa de Intervención Nutricional y analizar la mejora en el patrón de hábitos alimentarios en los adolescentes.
Métodos: El estudio se ha realizado sobre una población de 372 alumnos de ESO del IES de la ciudad de Gandía (Valencia).
Resultados: El 37,8% de los adolescentes ha mejorado el grado de la calidad de la dieta. Aquellos que consumen una dieta de muy buena calidad ha pasado de ser del 30,0% al 58,6%. También es significativo el número de alumnos que han comenzado a desayunar y los que han dejado de tomar bollería industrial en esta ingesta. Es estadísticamente significativo el descenso de adolescentes que acuden habitualmente a un local de comida rápida y de aquellos que han dejado de tomar de forma regular "chucherías" y golosinas.
Los datos del Índice KIDMED muestran que (p < 0,001) el 47,4% de los alumnos han mejorado en cuanto ala calidad de la dieta y ninguno ha empeorado.
Discusión: Antes de comenzar el programa un 30% de los alumnos seguía una dieta de buena calidad equiparable a la Dieta Mediterránea tradicional y tras la Educación este porcentaje pasó a ser del 58,6%. El 47,4% de los alumnos con sobrepeso u obesidad que recibieron Educación e Intervención Nutricional han mejorado la calidad de su dieta y el porcentaje de los que seguían una dieta de muy buena calidad pasó de 28,9% al 71,0%.Introduction: Adolescence is a critical period for the acquisition and configuration of healthy dietary habits and lifestyle for the young future, which will likely persist throughout the adulthood. Paediatric and juvenile obesity is a public health problem which control necessarily implies prevention and nutritional education.
Objectives: To evaluate the nutritional status of the adolescents and determine the proportion with overweight or obesity, and to establish a Nutritional Intervention Programme and analyse the improvement in the pattern of dietary habits among the adolescents.
Methods: The study has been carried out in a population of 372 Obligatory Secondary Education (OSE) students from the Institute of Secondary Education of Gandía (Valencia).
Results: 37.8% of the adolescents have improved the level of their diet quality. Those consuming a high quality diet have increased from 30.0% to 58.6%. Also significant is the number of students that have taken up having breakfast and those having discontinued taking industrial bakery with this meal. The decrease in the number of adolescents going to fast food places and of those that have discontinued eating candies regularly isstatistically significant.
The data from the KIDMED index show that 47.4% (p < 0.001) of de the students have improved the quality of their diet and in none of them it has worsened.
Discussion: Before starting the programme, 30% of the students followed a high quality diet comparable to the traditional Mediterranean Diet, and after the education programme, this percentage increased to 58.6%. Forty-seven point four percent of overweighed or obese students receiving the Nutritional Education and Intervention have improved their diet quality and the percentage of those following a high quality diet varied from 28.9% to 71.0%
Nanopartículas metálicas soportadas en aluminosilicatos mesoporosos mediante procedimiento mecanoquímico para la obtención de compuestos de alto valor añadido
Self‐Assembled Nanofibrilar Networks: Boosting Hydrogelation Efficiency by Replacement of a Pyridine Moiety by a Quinoline One
This is the pre-peer reviewed version of the following article: Self‐Assembled Nanofibrilar Networks: Boosting Hydrogelation Efficiency by Replacement of a Pyridine Moiety by a Quinoline One, which has been published in final form at https://doi.org/10.1002/cnma.201800219. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived VersionsA new molecular hydrogelator consisting of a L‐Valine derivative with appended quinoline units behaves as a supramolecular superhydrogelator forming gels at such low concentrations as 0.8 mM (0.05% w/w). On the other hand, an analogue compound containing a pyridine moiety is found to be a poor gelator, forming gels at 19 mM. The gels are pH sensitive because of the protonation of the heterocycle and show microcrystallinity. The rheological properties and biocompatibility are also reported
Optimisation zeolite supported ni catalyst for hydrotreatment of solvolysed lignocellulosic biomass
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