207 research outputs found

    El Maestro Juan Latino en la Granada renacentista. Su ciudad, su vida, sus protectores.

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    En este trabajo se analiza el medio ciudadano, político, espiritual y cultural en que se desarrolla la vida de Juan Latino, el poeta en lengua latina más importante de la Granada renacentista. Estas circunstancias históricas tuvieron gran importancia en el autor y en su obra, que refleja además las instancias de poder que en él influyeron.Juan Latino was the most important poet in Latin language in the spanish city of Granada during the Renaissance. In this study we discuss the social, political, religious and cultural context in which he lived. These historical aspects were of great relevance in the author's life and work, which itself shows the effect of his relations with the city's powerful institutions and authorities

    Geophysical and mineralogical characterization of near surface formations of the Loa river Basin (Atacama Desert, Chile)

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    Durante 2015 tuvo lugar una exploración geotécnica y geofísica en el desierto de Atacama (Chile) para el diseño de una planta solar fotovoltaica. Los datos de resistividad obtenidos en la Fm. El Batea resultaron extremadamente elevados (107Ω•m), por lo que se llevó a cabo un muestreo de las unidades geológicas presentes para su estudio mineralógico mediante difracción de rayos X (DRX). La composición mineral de la Fm. El Batea muestra una casi total ausencia de humedad y una muy baja porosidad. Estos factores producen que la componente electrolítica en esta formación sea casi despreciable, y su comportamiento eléctrico coincide con la conductividad de sus fases minerales casi en estado puro. Estas características se deben a las extremas condiciones ambientales en el desierto de Atacama. La formación El Batea ha supuesto una barrera a la evapotranspiración, siendo los valores de resistividad de la formación infrayacente prácticamente normales (103-104Ω•m).During 2015 it took place a geotechnical and geophysical exploration in the Atacama Desert (Chile) for the design of a power solar plant.Resistivity data obtained in El Batea Fm. were extremely high (107Ω·m). For this reason, sampling of near surface geological units were made in order to study its mineralogical composition with X-Ray Difraction (XRD). Mineral composition of El Batea Fm. shows an almost total absence of water and a very low porosity. These factors cause that the electrolytic component in this formation is almost negligible, and its electrical conductivity matches with the conductivity of the pure mineral phases. These characteristics are probably due to the extreme environmental conditions. El Batea Fm. has a barrier to evapotranspiration, because the resistivity values of the lower formation are practically normal (103-104Ω·m).Fac. de Ciencias GeológicasTRUEpu

    Multi-Proxy Approach for Identifying Heinrich Events in Sediment Cores from Hatton Bank (NE Atlantic Ocean)

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    A series of six gravity cores has been used to reconstruct the depositional history of Hatton Bank (Rockall Plateau, NE Atlantic Ocean). The cores have been studied for magnetic susceptibility (MS), geochemical composition, grain size distribution, and a semi-quantitative foraminiferal association. Two main interbedded facies have been described: (i) calcareous ooze; and (ii) lithogenous silt. The study reveals prominent peaks from the MS signal, silt, Mg/Ca, Fe/Ca, Al/Ca, and Rare Earth Elements normalised by Continental Crust (REE/CC), which are sensitive indicators for Heinrich events (H1, H2, H3, H4, and H5) and ash layers. These peaks may relate to alternations in dominance of the calcareous and lithogenic facies. The sediment displays a high percentage of carbonate in interglacial layers but is lithogenic-dominated in glacial stages. The layers with prominent lithic-rich and foraminifera-poor sediments (established as Heinrich layers) may be related to a possible palaeoclimatic effect, where freshwater discharged during iceberg melting may have reduced the formation of North Atlantic Deep Water (NADW). In the study area, the mean sedimentation rates for the last glacial as ~4.2 cm ka−1 and ~1.4 cm ka−1 for the last ~18 ka (interglacial period) have been estimated. Besides this evidence, Fe/Ca and MS peaks may reflect the presence of basalt, either introduced through ice-rafting or transported and redistributed by bottom currents in the study area. Certain indices, including MS and Fe/Ca, are proposed as good proxies for detecting Heinrich events and ash layers in the Hatton Bank sediments and, in consequence, are parameters that can be used to infer strengthened/weakened NADW formation, according to stadials/interstadials. Moreover, we suggest that the northernmost boundary of the area with evidence of Heinrich events may be situated around 57°38′ N in the Hatton–Rockall area, at least for H4, based on the variation of the Mg/Ca and Fe/Ca curves

    Análisis de una experiencia de hospitalización.

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    En diciembre de 1980, el Hospital Psiquiátrico «Santa Isabel», de Leganés, pone en funcionamiento una Unidad de Admisión. Pequeña unidad mixta, de 18 camas, pensada para atender las urgencias psiquiátricas del área donde se asienta el Hospital. «Leganés», viejo manicomio estatal, inició el proceso de transformación de su condición asilar hace poco más de una década, abriéndose a los pocos años a la población en un proyecto de atención comunitaria inspirado en la política de sector francesa

    Análisis de una experiencia de hospitalización.

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    En diciembre de 1980, el Hospital Psiquiátrico «Santa Isabel», de Leganés, pone en funcionamiento una Unidad de Admisión. Pequeña unidad mixta, de 18 camas, pensada para atender las urgencias psiquiátricas del área donde se asienta el Hospital. «Leganés», viejo manicomio estatal, inició el proceso de transformación de su condición asilar hace poco más de una década, abriéndose a los pocos años a la población en un proyecto de atención comunitaria inspirado en la política de sector francesa

    UV-Cured Chitosan and Gelatin Hydrogels for the Removal of As(V) and Pb(II) from Water

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    In this study, new photocurable biobased hydrogels deriving from chitosan and gelatin are designed and tested as sorbents for As(V) and Pb(II) removal from water. Those renewable materials were modified by a simple methacrylation reaction in order to make them light processable. The success of the reaction was evaluated by both (1)H-NMR and FTIR spectroscopy. The reactivity of those formulations was subsequently investigated by a real-time photorheology test. The obtained hydrogels showed high swelling capability reaching up to 1200% in the case of methacrylated gelatin (GelMA). Subsequently, the Z-potential of the methacrylated chitosan (MCH) and GelMA was measured to correlate their electrostatic surface characteristics with their adsorption properties for As(V) and Pb(II). The pH of the solutions proved to have a huge influence on the As(V) and Pb(II) adsorption capacity of the obtained hydrogels. Furthermore, the effect of As(V) and Pb(II) initial concentration and contact time on the adsorption capability of MCH and GelMA were investigated and discussed. The MCH and GelMA hydrogels demonstrated to be promising sorbents for the removal of heavy metals from polluted waters

    A computer vision-based system to help health professionals to apply tests for fall risk assessment

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    : The increase in life expectancy, and the consequent growth of the elderly population, represents a major challenge to guarantee adequate health and social care. The proposed system aims to provide a tool that automates the evaluation of gait and balance, essential to prevent falls in older people. Through an RGB-D camera, it is possible to capture and digitally represent certain parameters that describe how users carry out certain human motions and poses. Such individual motions and poses are actually related to items included in many well-known gait and balance evaluation tests. According to that information, therapists, who would not need to be present during the execution of the exercises, evaluate the results of such tests and could issue a diagnosis by storing and analyzing the sequences provided by the developed system. The system was validated in a laboratory scenario, and subsequently a trial was carried out in a nursing home with six residents. Results demonstrate the usefulness of the proposed system and the ease of objectively evaluating the main items of clinical tests by using the parameters calculated from information acquired with the RGBD sensor. In addition, it lay the future foundations for creating a Cloud-based platform for remote fall risk assessment and its integration with a mobile assistant robot, and for designing Artificial Intelligence models that can detect patterns and identify pathologies for enabling therapists to prevent falls in users under risk.This research was funded by “Project TED2021-130942A-C22 funded by MICIU/AEI/10.13039/501100011033 and by European Union NextGenerationEU/PRTR”. It is also funded by the Innovation and Science Ministry (Spain), grant number TED2021-130942B-C21, and by the “Fundación Séneca (Región de Murcia)”, grant number 21593/FPI/21 and grant number 22254/PDC/23

    Design, development and validation of an intelligent system of a decision support system about irrigation water management in agriculture

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    [SPA] Este documento muestra una visión general del estado del arte de la inteligencia artificial aplicada a la agricultura de precisión. Además, describe el plan de trabajo propuesto para conseguir uno de los objetivos relacionados con el manejo eficiente del agua en la agricultura que pretenden ser abordados en la tesis doctoral y muestra algunos de los avances conseguidos hasta ahora. [ENG] This document gives an overview of the state of the art of artificial intelligence applied to precision agriculture. In addition, it describes the proposed work schedule in order to achieve the one of the objectives related to the efficient water management in agriculture that are aimed within this PhD and shows some of the advances that are fulfilled until now.Este trabajo ha sido financiado por el Ministerio de Investigación e Innovación del Gobierno de España (PCIN-2017-091, WaterWorks2015 ERA-NET) y Manuel Forcen agradece la financiación del contrato predoctoral recibida de la Fundación Séneca (20767/FPI/18)
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