Search results for "97"
showing 10 items of 1081 documents
Analysis of load balancing and interference management in heterogeneous cellular networks
2017
To meet the current cellular capacity demands, proactive offloading is required in heterogeneous cellular networks (HetCNets) comprising of different tiers of base stations (BSs), e.g., small-cell BSs (sBSs) and conventional macro-cell BSs (mBSs). Each tier differs from the others in terms of BS transmit power, spatial density, and association bias. Consequently, the coverage range of each tier BSs is also different from others. Due to low transmit power, a fewer number of users are associated to an sBS as compared with mBS. Thus, inefficient utilization of small-cell resources occurs. To balance the load across the network, it is necessary to push users to the underloaded small cells from …
Historia y memoria de la educación : HMe
2019
Finalizada la Segunda Guerra Mundial en 1945, fueron muchos los que creyeron que el fin del conflicto supondría la caída del franquismo, el regreso del gobierno republicano y la vuelta de la democracia a España. Desde el exilio, el retorno estuvo muy presente en publicaciones, reuniones, manifiestos y acciones políticas, especialmente en México y en Francia. Entre los temas tratados en los círculos de los desterrados con mayor implicación política e intelectual sobresalió la educación, dada la importancia que se le daba a la formación de las nuevas generaciones de españoles que deberían de retomar los principios y valores republicanos. El artículo examina tres documentos con propuestas de l…
Impacto del viaje de Freire a Valencia
2021
In the publications of Freire's trip, errors are detected that makes invisible both its impact and those who made it possible. An analysis of the documentation, 6 interviews with people who made the trip possible, 6 with professionals and 2 with family members in Valencia who are transforming their schools and 2 dialogical observations have been carried out. The results make it clear: 1) Those who proposed this trip both to Freire and to the Regional Ministry are Flecha and Jesús Gomez 'Pato'. 2) The reason is the approval by the Valencian Parliament of the Law on Adult Education, whose 'Report and draft for its preliminary project' had been entrusted to Flecha, who was hired to elaborate i…
Espacio, tiempo y educación
2015
This paper analyzes the role played by the student movement in the restitution of democracy in Spain. Taking as a starting point the situation of university under the Franco dictatorship, and how (and why) students were dealt with, the major features that set the student movement apart from other kinds of activism in that time are described and linked to the unique effects that it had on the status quo, with a special stress on its ability to generate the kind of cultural change required for overcoming the atmosphere of resignation and consent that helped to keep the government in power. The way in which culture, personal issues, and politics got intertwined is shown as a key trait of stude…
Cambio generacional, familia y profesorado en la crisis de la educación política franquista
2018
Resumen basado en el de la publicación Título, resumen y palabras clave en español y en inglés Se analiza la crisis de la educación política impulsada por la dictadura franquista durante los años sesenta y setenta atendiendo a la importancia del cambio generacional. Se basa en una investigación en profundidad con fuentes orales e informes oficiales centrada en el caso del País Valenciano. Por una parte, se analizan los procesos de educación política en la identificación con la dictadura de Franco desarrollados en el ámbito de las familias «vencedoras», prestando una particular atención a su agotamiento entre los nacidos a partir de finales de los años cuarenta. Por otra parte, se analizan l…
The Effect of Hydrology on Soil Erosion
2020
In this Special Issue, we have tried to include manuscripts about soil erosion and degradation processes and the accelerated rates due to hydrological processes and climate change. We considered that the main goal was successfully reached. The new research focused on measurements, modelling, and experiments under field or laboratory conditions developed at different scales (pedon, hillslope, and catchment) were submitted and published. This Special Issue received investigations from different parts of the world such as Ethiopia, Morocco, China, Iran, Italy, Portugal, Greece and Spain, among others. We are happy to see that all papers presented findings characterized as unconventional, provo…
Time Scale Effects and Interactions of Rainfall Erosivity and Cover Management Factors on Vineyard Soil Loss Erosion in the Semi-Arid Area of Souther…
2019
Several authors describe the effectiveness of cover crop management practice as an important tool to prevent soil erosion, but at the same time, they stress on the high soil loss variability due to the interaction of several factors characterized by large uncertainty. In this paper the Revised Universal Soil Loss Equation (RUSLE) model is applied to two Sicilian vineyards that are characterized by different topographic factors
Long-Term Consequences of Water Pumping on the Ecosystem Functioning of Lake Sekšu, Latvia
2020
Cultural eutrophication, the process by which pollution due to human activity speeds up natural eutrophication, is a widespread and consequential issue. Here, we present the 85-year history of a small, initially Lobelia&ndash
Impacts of thinning of a Mediterranean oak forest on soil properties influencing water infiltration
2017
[EN] In Mediterranean ecosystems, special attention needs to be paid to forest¿water relationships due to water scarcity. In this context, Adaptive Forest Management (AFM) has the objective to establish how forest resources have to be managed with regards to the efficient use of water, which needs maintaining healthy soil properties even after disturbance. The main objective of this investigation was to understand the effect of one of the AFM methods, namely forest thinning, on soil hydraulic properties. At this aim, soil hydraulic characterization was performed on two contiguous Mediterranean oak forest plots, one of them thinned to reduce the forest density from 861 to 414 tree per ha. Th…
Carbon Nanotubes Dispersion Assessment in Nanocomposites by Means of a Pulsed Thermographic Approach
2020
The extensive production of polymer composites reinforced by carbon nanotube is limited by the absence of non-destructive evaluation (NDE) methods capable of assessing product quality to guarantee compliance with specifications. It is well known that the level of dispersion of carbon nanotubes (CNTs) in the polymer matrix is the parameter that, much more than others, can influence their enhancement capabilities. Here an active Infrared Thermography Non Destructive Testing(IR-NDT) inspection, joined with pulsed phase thermography (PPT), were applied for the first time to epoxy-CNT composites to evaluate the level of dispersion of the nanoparticles. The PPT approach was tested on three groups…