42 research outputs found

    La gestión del trabajo educativo en las unidades docentes del municipio Los Palacios

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    El proceso de gestión del trabajo educativo en las unidades docentes de la Universidad de Pinar del Río (UPR) integrada, toma como punto de referencia, las necesidades de superación de los profesores-tutores para el desempeño de sus funciones en el proceso de formación de los estudiantes en formación de carreras pedagógicas. Este proceso se ha caracterizado por la carencia de un carácter coordinado y sistémico, que permita articular el objeto de dicho proceso, sustentado mediante un programa de superación, el cual constituye uno de los productos de la investigación. Se concibe este curso de posgrado para preparar a los profesores-tutores que presentan limitaciones para gestionar a partir del trabajo metodológico la estrategia de trabajo educativo en el colectivo del grado escolar donde se encuentran insertados dichos estudiantes, constituye la célula básica de dicha gestión, concibiendo los procesos sustantivos desde una perspectiva curricular y extracurricular para lograr con eficiencia su formación general integral en el contexto en que se desenvuelve

    La capacitación a nivel de Máster de los educadores ambientales. La experiencia de un Máster Interuniversitario en Educación Ambiental

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    El Máster Interuniversitario en Educador/a Ambiental es un proyecto consolidado en el Sistema Universitario Español. Actualmente (curso 2014/2015) se desarrolla la 6ª edición del mismo. Durante estos últimos años se han capacitado como educadores ambientales con nivel de Máster más de 200 estudiantes. Muy brevemente, se puede decir que se trata del primer Máster oficial interuniversitario adaptado al Espacio Europeo de Educación Superior de estas características. Está coordinado actualmente por la Universidad de Málaga, y junto a ella co-organizan este Máster las Universidades de Córdoba, Cádiz, Granada, Almería, Pablo de Olavide de Sevilla y Huelva, participando además profesorado de todas las universidades andaluzas y de varias españolas. Es un proyecto pionero en el uso de TIC. Para su realización, este Máster se apoya a) en el uso de una plataforma virtual de apoyo (Moodle) para desarrollo de las clases teóricas y prácticas, y b) con una herramienta virtual para la teledocencia que permite conectar las diferentes sedes universitarias en directo (evitando numerosos desplazamientos), y que además, el profesorado y alumnado del máster participen simultáneamente en el desarrollo de las clases. En sus dos itinerarios, uno profesional, dirigido a formar a profesionales de la Educación Ambiental, y otro investigador (equivalente al periodo formativo de un doctorado) que forma investigadores en este ámbito de conocimiento interdisciplinar, ha dado fruto a un gran número de resultados tangibles: a) profesionales: emprendimiento en el sector con varios proyectos en marcha, cualificación de educadores que ya trabajaban en centros de educación ambiental,… b) de investigación: realización de tesis doctorales, publicación de monografías científicas y artículos en revistas, asistencia a congresos nacionales e internacionales. En una de las investigaciones publicadas en revistas (Ponce y Tójar, 2014), y de la que se informa en el contenido del póster, se analiza el grado de adquisición de competencias de educación ambiental adquiridas por los egresados, así como de las oportunidades de empleo de los mismos.Asociación Española de Educación Ambienta

    Spatiotemporal Characteristics of the Largest HIV-1 CRF02_AG Outbreak in Spain: Evidence for Onward Transmissions

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    Background and Aim: The circulating recombinant form 02_AG (CRF02_AG) is the predominant clade among the human immunodeficiency virus type-1 (HIV-1) non-Bs with a prevalence of 5.97% (95% Confidence Interval-CI: 5.41–6.57%) across Spain. Our aim was to estimate the levels of regional clustering for CRF02_AG and the spatiotemporal characteristics of the largest CRF02_AG subepidemic in Spain.Methods: We studied 396 CRF02_AG sequences obtained from HIV-1 diagnosed patients during 2000–2014 from 10 autonomous communities of Spain. Phylogenetic analysis was performed on the 391 CRF02_AG sequences along with all globally sampled CRF02_AG sequences (N = 3,302) as references. Phylodynamic and phylogeographic analysis was performed to the largest CRF02_AG monophyletic cluster by a Bayesian method in BEAST v1.8.0 and by reconstructing ancestral states using the criterion of parsimony in Mesquite v3.4, respectively.Results: The HIV-1 CRF02_AG prevalence differed across Spanish autonomous communities we sampled from (p < 0.001). Phylogenetic analysis revealed that 52.7% of the CRF02_AG sequences formed 56 monophyletic clusters, with a range of 2–79 sequences. The CRF02_AG regional dispersal differed across Spain (p = 0.003), as suggested by monophyletic clustering. For the largest monophyletic cluster (subepidemic) (N = 79), 49.4% of the clustered sequences originated from Madrid, while most sequences (51.9%) had been obtained from men having sex with men (MSM). Molecular clock analysis suggested that the origin (tMRCA) of the CRF02_AG subepidemic was in 2002 (median estimate; 95% Highest Posterior Density-HPD interval: 1999–2004). Additionally, we found significant clustering within the CRF02_AG subepidemic according to the ethnic origin.Conclusion: CRF02_AG has been introduced as a result of multiple introductions in Spain, following regional dispersal in several cases. We showed that CRF02_AG transmissions were mostly due to regional dispersal in Spain. The hot-spot for the largest CRF02_AG regional subepidemic in Spain was in Madrid associated with MSM transmission risk group. The existence of subepidemics suggest that several spillovers occurred from Madrid to other areas. CRF02_AG sequences from Hispanics were clustered in a separate subclade suggesting no linkage between the local and Hispanic subepidemics

    Crystal structure and compositional effects on the electrical and electrochemical properties of GdBaCo2-xMnxO5+d (0≤ x ≤ 2) oxides for use as air electrodes in solid oxide fuel cells†

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    The effects of the substitution of Co with Mn in the crystal structure, oxygen content, thermal stability and expansion and electrical properties of GdBaCo2-xMnxO5+d (0 ≤ x ≤ 2) oxides are reported. Composites of GdBaCo2-xMnxO5+d–Ce0.9Gd0.1O2-d (70 : 30 wt%) are used as cathode materials and their electrochemical behaviour is presented. Layered-type ordering of Ba and Gd cations in the perovskite structure occurs in the whole system when the materials are prepared in argon but only for compositions in the range corresponding to x < 1.4 when the materials are prepared in air. The oxygen content increases with increasing the Mn content, causing thermal stability to improve and thermal expansion to decrease. However, lowering of the dc conductivity and an increase of electrode polarization resistances are observed by Mn substitution for Co. Cation ordering of the Gd and Ba atoms seems to affect the electrochemical properties of the materials.MINECOComunidad de MadridDepto. de Química InorgánicaFac. de Ciencias QuímicasTRUEpu

    Influence of the synthesis conditions on the crystal structure and properties of GdBaCo2 xFexO5+d oxides as air-electrodes for intermediate temperature solid oxide fuel cells

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    The influence of the synthesis conditions on the crystal structure and properties of the oxides of the system GdBaCo2-xFexO5+d is reported in this article. The materials are prepared by a ceramic method either in air or in an argon atmosphere. Crystal structure characterization is carried out by a combination of powder X-ray diffraction (PXRD) with advanced methods of high resolution transmission electron microscopy (HRTEM), scanning-transmission electron microscopy (STEM) and electron energy-loss spectroscopy (EELS). Thermal expansion coefficients of the oxides decrease with increasing substitution of Co by Fe. Impedance spectroscopy analysis of symmetrical cells using these materials as electrodes reveals areaspecific polarization resistance (ASR) values low enough for the use of the oxides as air electrodes in intermediate temperature solid oxide fuel cells (IT-SOFCs).Ministerio de Economía y Competitividad (España)Comunidad de MadridDepto. de Química InorgánicaFac. de Ciencias QuímicasTRUEpu

    Crystal structure and compositional effects on the electrical and electrochemical properties of GdBaCo2−xMnxO5+δ (0 ≤ x ≤ 2) oxides for use as air electrodes in solid oxide fuel cells

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    The effects of the substitution of Co with Mn in the crystal structure, oxygen content, thermal stability and expansion and electrical properties of GdBaCo2 xMnxO5+d (0 # x # 2) oxides are reported. Composites of GdBaCo2 xMnxO5+d–Ce0.9Gd0.1O2 d (70 : 30 wt%) are used as cathode materials and their electrochemical behaviour is presented. Layered-type ordering of Ba and Gd cations in the perovskite structure occurs in the whole system when the materials are prepared in argon but only for compositions in the range corresponding to x < 1.4 when the materials are prepared in air. The oxygen content increases with increasing the Mn content, causing thermal stability to improve and thermal expansion to decrease. However, lowering of the dc conductivity and an increase of electrode polarization resistances are observed by Mn substitution for Co. Cation ordering of the Gd and Ba atoms seems to affect the electrochemical properties of the materialsMINECOMINECOMINECOMINECOCOMUNIDAD DE MADRIDDepto. de Química InorgánicaFac. de Ciencias QuímicasTRUEpu

    VI foro-debate temas transversales

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    El Proyecto se desarrolló en el IES Manuel Gutiérrez Aragón de Viérnoles. Un total de 16 institutos participaron en este proyecto, los profesores mantuvieron por lo menos tres reuniones antes de llevarlo a cabo. El objetivo principal es tratar los temas transversales que inquietan a la juventud y adoptar una postura crítica y profunda hacia ellos. Como objetivos específicos se propuso: 1. Consolidación de un espacio intelectual y vital alternativo de reflexión libre, autónoma, responsable y comprometida de los estudiantes de Cantabria sobre los temas que para ellos acarrean mayores inquietudes. 2. Desarrollar el espíritu de trabajo en equipo que posibilite actitudes de compromiso y solidaridad ante los problemas del mundo actual. 3. Incentivar la toma de conciencia ante una realidad que aparece como consumista, confusa y poco sugerente. 4. Potenciar el interés por los problemas globales que atañen a la humanidad, incentivando el debate responsable sobre los derechos humanos y los temas que de ellos se derivan. 5. Fomentar la convivencia entre alumnos de distintas procedencias, entre profesores y muy especialmente entre profesores y alumnos en un clima de trabajo a la vez serio y distendido que posibilite una mejor relación humana en la educación.El desarrollo del proyecto se planteó en dos etapas: en la primera, los alumnos que libremente quieren participar elaboran en grupos sus temas en respectivos institutos, el profesor coordina el trabajo y corrige posibles errores. En la segunda parte los alumnos se reúnen en una fecha para presentar los trabajos, los temas quedan organizados en paneles temáticos: un aula donde toman parte diversos grupos que han trabajo el mismo tema. Al final se hace un foro-debate, comida común y actividades culturales-festivas.Los materiales utilizados consisten en material fungible y del aula.Gobierno de Cantabria. Consejería de Educación y JuventudCantabriaES

    Network convergence and QoS for future multimedia services in the VISION project

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    The emerging use of real-time 3D-based multimedia applications imposes strict quality of service (QoS) requirements on both access and core networks. These requirements and their impact to provide end-to-end 3D videoconferencing services have been studied within the Spanish-funded VISION project, where different scenarios were implemented showing an agile stereoscopic video call that might be offered to the general public in the near future. In view of the requirements, we designed an integrated access and core converged network architecture which provides the requested QoS to end-to-end IP sessions. Novel functional blocks are proposed to control core optical networks, the functionality of the standard ones is redefined, and the signaling improved to better meet the requirements of future multimedia services. An experimental test-bed to assess the feasibility of the solution was also deployed. In such test-bed, set-up and release of end-to-end sessions meeting specific QoS requirements are shown and the impact of QoS degradation in terms of the user perceived quality degradation is quantified. In addition, scalability results show that the proposed signaling architecture is able to cope with large number of requests introducing almost negligible delay

    Nurr1, Pitx3, and α7 nAChRs mRNA Expression in Nigral Tissue of Rats with Pedunculopontine Neurotoxic Lesion

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    Background and Objectives: The knowledge that the cholinergic neurons from pedunculopontine nucleus (PPN) are vulnerable to the degeneration in early stages of the Parkinson disease progression has opened new perspectives to the development of experimental model focused in pontine lesions that could increase the risk of nigral degeneration. In this context it is known that PPN lesioned rats exhibit early changes in the gene expression of proteins responsible for dopaminergic homeostasis. At the same time, it is known that nicotinic cholinergic receptors (nAChRs) mediate the excitatory influence of pontine-nigral projection. However, the effect of PPN injury on the expression of transcription factors that modulate dopaminergic neurotransmission in the adult brain as well as the &alpha;7 nAChRs gene expression has not been studied. The main objective of the present work was the study of the effects of the unilateral neurotoxic lesion of PPN in nuclear receptor-related factor 1 (Nurr1), paired-like homeodomain transcription factor 3 (Pitx3), and &alpha;7 nAChRs mRNA expression in nigral tissue. Materials and Methods: The molecular biology studies were performed by means of RT-PCR. The following experimental groups were organized: Non-treated rats, N-methyl-D-aspartate (NMDA)-lesioned rats, and Sham operated rats. Experimental subjects were sacrificed 24 h, 48 h and seven days after PPN lesion. Results: Nurr1 mRNA expression, showed a significant increase both 24 h (p &lt; 0.001) and 48 h (p &lt; 0.01) after PPN injury. Pitx3 mRNA expression evidenced a significant increase 24 h (p &lt; 0.001) followed by a significant decrease 48 h and seven days after PPN lesion (p &lt; 0.01). Finally, the &alpha;7 nAChRs nigral mRNA expression remained significantly diminished 24 h, 48 h (p &lt; 0.001), and 7 days (p &lt; 0.01) after PPN neurotoxic injury. Conclusion: Taking together these modifications could represent early warning signals and could be the preamble to nigral neurodegeneration events
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