Search results for "Environment"
showing 10 items of 28487 documents
The quarry waste "Ravaneti" in Sicily: geomorphologic aspect
2009
Processing and effectiveness of formative feedback to increase comprehension and learning of conceptual knowledge in digital environments
2019
Los estudiantes de educación secundaria participan diariamente en tareas académicas diseñadas para desarrollar habilidades de lectura y facilitar la adquisición de conocimientos. Habitualmente, los docentes suelen pedir a sus estudiantes que lean textos expositivos y respondan preguntas sobre sus contenidos (e.g., Ness, 2011; Sánchez y García, 2015; Sánchez, García y Rosales, 2010), ya que estas tareas respaldan la comprensión y el aprendizaje de conceptos e ideas (e.g., Anmarkrud, McCrudden, Bråten y Strømsø, 2013; Cerdán, Gilabert y Vidal-Abarca, 2011; Lewis y Mensink, 2012; Roelle y Berthold, 2017). En estas situaciones, los estudiantes han de aplicar tanto procesos cognitivos de compres…
Prevalencia y factores de desgaste profesional en radiólogos durante la pandemia COVID-19
2022
Antecedentes: La epidemia por coronavirus 2019 (COVID-19) se ha extendido por todo el mundo desde principios de 2020, sometiendo a los profesionales sanitarios a una sobrecarga laboral ya un mayor nivel de estrés físico y emocional. Objetivos: El objetivo de este estudio es determinar la prevalencia de desgaste profesional y sus posibles factores asociados en los radiólogos españoles durante la COVID-19, y su comparación con la situación previa a la pandemia. Métodos: Estudio observacional realizado entre los meses de abril y agosto de 2020 (durante la pandemia) mediante una encuesta en línea. Se obtuvieron un total de 150 respuestas. Se recopiló y comparó la información demográfica y labor…
Trend of inter-arrival times of rainfall events for Italian Sub-Alpine and Mediterranean areas
2011
Determinants of the interannual relationships between remote sensed photosynthetic activity and rainfall in tropical Africa
2007
International audience; The response of photosynthetic activity to interannual rainfall variations in Africa South of the Sahara is examined using 20 years (1981-2000) of Normalised Difference Vegetation Index (NDVI) AVHRR data. Linear correlations and regressions were computed between annual NDVI and annual rainfall at a 0.5° latitude/longitude resolution, based on two gridded precipitation datasets (Climate Prediction Center Merged Analysis of Precipitation [CMAP] and Climatic Research Unit [CRU]). The spatial patterns were then examined to detect how they relate to the mean annual rainfall amounts, land-cover types as from the Global Land Cover 2000 data set, soil properties and soil typ…
Global Estimation of Biophysical Variables from Google Earth Engine Platform
2018
This paper proposes a processing chain for the derivation of global Leaf Area Index (LAI), Fraction of Absorbed Photosynthetically Active Radiation (FAPAR), Fraction Vegetation Cover (FVC), and Canopy water content (CWC) maps from 15-years of MODIS data exploiting the capabilities of the Google Earth Engine (GEE) cloud platform. The retrieval chain is based on a hybrid method inverting the PROSAIL radiative transfer model (RTM) with Random forests (RF) regression. A major feature of this work is the implementation of a retrieval chain exploiting the GEE capabilities using global and climate data records (CDR) of both MODIS surface reflectance and LAI/FAPAR datasets allowing the global estim…
Performance Dissimilarities in European Union Manufacturing: The Effect of Ownership and Technological Intensity
2021
Our paper addresses the relevance of a set of continuous and categorical variables that describe industry characteristics to differences in performance between foreign versus locally owned companies in industries with dissimilar levels of technological intensity. Including data on manufacturing sector performance from 20 European Union member countries and covering the 2009–2016 period, we used the random forests methodology to identify the best predictors of EU manufacturing industries’ a priori classification based on two main attributes: ownership (foreign versus local) and technological intensity. We found that EU foreign-owned businesses dominate locally owned ones in terms of size, wh…
Biological and Mechanical Characterization of the Random Positioning Machine (RPM) for Microgravity Simulations
2021
The rapid improvement of space technologies is leading to the continuous increase of space missions that will soon bring humans back to the Moon and, in the coming future, toward longer interplanetary missions such as the one to Mars. The idea of living in space is charming and fascinating; however, the space environment is a harsh place to host human life and exposes the crew to many physical challenges. The absence of gravity experienced in space affects many aspects of human biology and can be reproduced in vitro with the help of microgravity simulators. Simulated microgravity (s-μg) is applied in many fields of research, ranging from cell biology to physics, including cancer biology. In…
Current Social and Rangeland Access Trends among Pastoralists in the Western Algerian Steppe
2021
International audience; In the western Algerian steppe, the public authorities have carried out actions aimed at rural development (agricultural development programs) and combating desertification (grazing reserves) to counter the significant and rapid loss of vegetation cover of pastures by overgrazing, and the consequent impacts on local livelihoods. In the Rogassa area, these actions have impacted land tenure and the ancestral and collective way of land use and access. These changes have caused transformations in lifestyle and pasture management. This research aims to characterize how such changes are affecting local pastoralists and what their perceptions are about them. A selective sam…
Més enllà de Kohlberg: l'aprenentatge ètic per a la coherència entre judici, sentiments i accions morals
2017
espanolPara la comunidad educativa el desarrollo moral sigue siendo un asunto de preocupacion. Varios agentes educativos dedican tiempo y esfuerzo a un tema que, actualmente, evidencia una clara separacion entre lo teorico y lo practico, un sesgo entre lo que uno piensa y lo que uno hace, entre el razonamiento y las acciones morales. Las finalidades y las intenciones de los agentes educativos son respetables; pero contrariamente a estas, ninos y adolescentes actuan de manera demasiado reactiva y les cuesta generalizar ciertos comportamientos. En esta linea, el planteamiento de Kohlberg, centrado en el desarrollo del juicio y el razonamiento moral, parece proporcionarles principalmente eleme…