Pyroclasts of the first phases of the explosive-effusive PCCVC volcanic eruption: physicochemical analysis

The morphology, texture, grain size and other physicochemical characteristics of pyroclastic material from the first phases of the Puyehue-Cordon Caulle volcanic complex (PCCVC) eruption, (Southern Andes, Chile), can be associated to the model recently reported for the magma storage and its ascent conditions. The eruption started June 4th 2011, and the studied volcanic material corresponds to that collected in Argentine territory at different distances from the source, between 4 and 12 June 2011. The explosive-effusive volcanic process of the first days occurred with the simultaneous emplacement of lava flows and the venting of pyroclastic material, ejecting two well differentiated types of particles. The more abundant was constituted by rhyolitic and light color pumice fragments, characterized by a typical vesicular texture, easy fragmentation and absence of occluded crystalline phases. Particles found in minor proportion were dark color, different in shape and texture and rich in Fe and Ti. They seemed to be more effective for the interaction with emitted gases in the upper part of the column, for this reason, they appeared partially covered by condensation products. The ascent conditions of the magma affected its rheological behavior through variations in the degassing, viscosity and fragmentation. On the other hand, distance to the source, depositional time, volcanic evolution and environmental conditions are factors that affect the chemical composition of collected ash. So, the SiO2/FeO ratio not only increases with the distance but also with the deposition time and volcanic activity. The work was done with the aid of several techniques such as a laser-sediment analyzer, X-ray diffraction (XRD), chemical analysis (bulk and surface), SEM microscopy and Raman “microprobe” spectroscopy. On the other hand, the physicochemical behavior of the pyroclastic material allows us to suggest eventual applications

Educative attention to diversity. Deaf students in the classroom of Portugal and Turkey

en esta publicación pretendemos dar a conocer algunos resultados de la experiencia innovadora que estamos realizando a través del proyecto SMILE. Nos hemos centrado en el análisis de las relaciones que se establecen en torno a los alumnos sordos en el ámbito escolar y el papel de la lengua de signos en su integración y en los procesos de enseñanza-aprendizaje. Esta indagación se basa en las percepciones de los autores de este artículo, los docentes de los centros escolares donde se educan niños sordos, los alumnos oyentes y sordos, y nuestros estudiantes universitarios que realizaron las prácticas in situ. A continuación ponemos de relieve la realidad específica sobre la atención a la diversidad y la igualdad de oportunidades, centrada en la situación de los discentes con sordera, en centros escolares de Turquía y Portugalin this publication we intend to present some results of the innovative experience that we are realizing through Project SMILE. We have focused on the analysis of the relationships established around deaf students in schools and the role of sign language and its integration in the teaching-learning processes. This research is based on the perceptions of the authors of this article, teachers in schools where children are educated deaf children, hearing and deaf students, and university students who realized the practices on-site. Here we highlight the specific situation on the attention to diversity and equal opportunities, focusing on the situation of deaf learners in schools in Turkey and Portuga

Perceptions des étudiants de la maîtrise en Professeur de l’Enseignement Secondaire: points forts et faiblesses du nouveau modèle de formation

Este artículo incluye los resultados de una investigación desarrollada para conocer y valorar las percepciones que tiene el alumnado del Máster en Profesorado de Educación Secundaria de la Universidad de Alicante (UA), sobre el funcionamiento del plan de estudios en su tercera edición, correspondiente al curso académico 2011/12. Para ello se ha recogido información de 227 alumnos/as, que han cumplimentado de forma anónima un cuestionario con preguntas abiertas. El propósito de la investigación ha inducido a que adoptásemos una metodología de carácter evaluativo, con un enfoque cualitativo. La información recogida ha sido analizada con el soporte informático AQUAD 6 (Huber, 2006), que ha permitido clasificarla en nueve categorías o dimensiones que sustentan las principales conclusiones. Las evidencias asociadas a las principales dimensiones emergentes (valoración del tiempo empleado en el aprendizaje, desarrollo de la capacitación docente, dificultades encontradas, fortalezas de la formación recibida, expectativas de desarrollo profesional, principios básicos de la tarea educativa y propuestas de mejora) aconsejan introducir algunas modificaciones en el plan de estudios, así como potenciar las fortalezas que los estudiantes destacan de su proceso de formación.This paper is the result of a research process developed to know which the students’ perceptions about the program of Secondary Teachers Training are, during the academic course 2011/2012, when it has already been developed for three years. For that, we have reached some information from 227 students who have completed an anonymous open questionnaire. It has been used an evaluative methodology which is typical of qualitative paradigm. The information has been analyzed by AQUAD 6 software program (Huber, 2006), which has allowed the classification of the different codes in nine categories that help us to organize the information and reach some conclusions. These dimensions are: assessment time and teachers, teachers’ development through training, training difficulties, benefits of training, concept of education, interest in teaching, expectations of professional development, basic principles of educational work and suggestions for improvement. Results, therefore, are useful for doing several reformulations in curriculum and for enhance strengths of curriculum, identified by the students

Illness, disability or cultural identity? Interpretation of deafness and answers from the Spanish educational system

En España, en los últimos años, se han experimentado múltiples cambios en la prevención y la aten - ción de las personas con discapacidad, en particular en lo que se refiere a las personas sordas. La interpretación de la sordera no sólo como deficiencia auditiva, sino como una diferencia comunicativa, está llevando a la disposición de contextos educativos con carácter bilingüe y bicultural. Esta nueva perspectiva conceptual y la consecuente orientación de las prácticas escolares tienen un impacto positivo en los campos de la salud, la educación y el ámbito social, fomentando el desarrollo tanto del alumnado sordo, como del alumnado oyente. En este artículo se expone la situación del con - texto español en este campo, y ha servido de base para la realización de un proyecto transnacional europeo

Contribución al conocimiento de la flora briológica de Canencia, Sierra de Guadarrama (Madrid)

. The bryoflora of Puerto de Canencia (Madrid, Spain) is studied, and 105 speeies, 79 mosses and 26 hepatics are mentioned indicating which are new aud which are seconó provincial recorús. Using Sorensen's indices, methods of polar and matrix arrangement were tested on the ten observed communities; these gaye the same results, with the humidity gradient being thc main factor responsible for thc floristie differences.. Se ha estudiado la brioflora del Puerto de Canencia (Madrid, España), contabilizándose 79 especies de musgos y 26 de hepáticas. Se indican cuáles de estos 105 taxones son primeras y segundas citas provinciales. Con los índices de S0rensen calculados para las diez comunidades detectadas se han ensayado métodos de ordenación matricial y polar de las mismas, resultando el gradiente de humedad el factor responsable de las diferencias florísticas

Pre-service teacher education and comprehension of didactic concepts. An experience within the Master of Secondary Education Teachers

The main purpose of the research was to figure out which was the level of comprehension of the didactic concepts that the students of the Secondary Education Master of the University of Alicante of the academic year 2011/12 had. With this purpose, we have collected the information provided by the answers of 227 students to an ad-hoc-elaborated semi-structured questionnaire whose data have been treated with a quantitative methodology using the SPSS.19 device. The statistic techniques were descriptive, differential and correlational. In this analysis, we take into account the scores obtained by students in variables related to their learning process and their attitudes towards it. The most interesting results prove that the students don’t master the basic didactic concepts in a satisfactory way, there are differences between the levels of comprehension and other variables related to the learning of the concepts and with attitudinal variables of this learning. The research based on these results indicates the need to focus the teaching and learning processes of the Master from a different point of view and combining the strategies which enhance the understanding of these concepts by the students

Culturas, políticas y prácticas de inclusión en las universidades: enfoque desde la formación inicial del profesorado

Nuestra definición de Inclusión parte de la propuesta de una educación accesible y de calidad, que contemple a todas las personas, en cualquier nivel de enseñanza. Tal definición apuesta por la construcción de una mirada crítica en el currículo y su transversalidad durante la formación de futuros profesionales, lo que consideramos fundamental para discutir la organización de una propuesta de Educación Inclusiva en el nivel de enseñanza superior. El objetivo de este proyecto es profundizar en los procesos de inclusión/exclusión educativa en la formación inicial del profesorado, ya que como futuros educadores sus concepciones al respecto influirán en su práctica docente, a lo que hay que añadir la proyección social de la figura del profesional de la educación. Este estudio incorpora, además, la consideración del tema en un ámbito internacional desde una perspectiva educativa comparada, convirtiéndolo en una experiencia mucho más enriquecedora y que aporta datos de interés para otros trabajos en el campo abordado.Our definition of inclusion originates of the proposal for an accessible and quality education, which includes everyone, at any level of education. This definition is committed to building a critical look at the curriculum and its mainstreaming in the education of future professionals; we considered the organization to discuss a proposal for Inclusive Education in the higher education level. Examine the processes of inclusion/exclusion of education in initial teacher training is the goal of this project, because as future educators their conceptions influence in their teaching practice, to which must be added the outreach they have. This study incorporates our interest in international comparative educational perspective, making it a much richer experience and it provides very interesting data

Impact of Initial Soil Temperature Derived from Remote Sensing and Numerical Weather Prediction Datasets on the Simulation of Extreme Heat Events

Extreme heat weather events have received increasing attention and has become of special importance as they can remarkably affect sectors as diverse as public health, energy consumption, water resources, natural biodiversity and agricultural production. In this regard, summer temperatures have become a parameter of essential interest under a framework of a hypothetical increase in the number of intense-heat conditions. Thus, their forecast is a crucial aspect bearing in mind a mitigation of the effects and impacts that these intense-heat situations could produce. The current work tries to reach a better understanding of these sorts of situations that are really common over the Western Mediterranean coast. An extreme heat episode that took place in the Valencia Region in July 2009 is analysed, based on the simulations performed with the Regional Atmospheric Modeling System (RAMS). This event recorded maximum temperatures exceeding 40 °C amply extended over the region besides reaching minimum temperatures up to 25.92 °C. We examine the role of improved skin and soil temperature (ST) initial conditions in the forecast results by means of different modelling and satellite-derived products. The influence of incorporating the Land Surface Temperature (LST) into RAMS is not found to produce a meaningful impact on the simulation results, independently of the resolution of the dataset used in the initial conditions of the model. In contrast, the introduction of the ST in lower levels, not only the skin temperature, has a more marked decisive effect in the simulation. Additionally, we have evaluated the influence of increasing the number of soil levels to spread deeper underground. This sensitivity experiment has revealed that more soil levels do not produce any meaningful impact on the simulation compared to the original one. In any case, RAMS is able to properly capture the observed patterns in those cases where a Western advection is widely extended over the area of study. This region’s variability in orography and in distances to the sea promotes the development of sea-breeze circulations, thus producing a convergence of two opposite wind flows, a Western synoptic advection and a sea-breeze circulation. As a result, the RAMS skill in those cases where a sea breeze is well developed depends on the proper location of the boundary and convergence lines of these two flows.This work has been funded by the Spanish Ministerio de Economía y Competitividad and the European Regional Development Fund (FEDER) through the project CGL2015-64268-R (MINECO/FEDER, UE), by the Regional Government of Valencia through the project PROMETEOII/2014/086 and by the Spanish Ministerio de Economía y Competitividad through the project CGL2011-30433-C02-02 (MINECO)

Contribución al conocimiento de la flora briológica de la ciudad de Ávila.

This paper presents a study on the urban bryoflora of Avila. It provides informa tion on the occurrence of Bryophyta ira 11w different habitats within iba town. A total list of 29 bryophytes (some of them never before mentioned to exist in ihis province) is given.Se han encontrado 29 briófitos en la ciudad de Avila. Se indican los hábitats y localizaciones de todos ellos y los que son novedades provinciales

Unreal memories. La imagen colectiva de la arquitectura en redes sociales visuales

[Abstract] Images of architecture spread quickly on visual social networks that gain interest to disseminate and communicate architecture. For this reason, it is a must to diagnose the social construction of the image of architecture, to explore the restrictions and publication formats of the platform, to identify the reaction and dissemination habits in relation to the visual features of photography and to delve into the possibilities and the risks introduced by artificial intelligence systems. The research method follows a cognitive association approach through various graphic case studies on Instagram. The exploratory design to approach the role of the image to communicate architecture in visual social media arises from the concept of the fragment and the biased vision, a division required due to the nature of related image suggestions as a browsing method on Instagram. The findings identify opportunities and action strategies to complement the contents that build the collective image of architecture adapted to the logic of the new scenario.[Resumen] Las imágenes de arquitectura se propagan rápidamente en las redes sociales visuales que ganan interés para difundir y comunicar la arquitectura. Por ello, es imprescindible diagnosticar el proceso de la construcción social de la imagen de la arquitectura, explorar las restricciones y formatos de publicación de la plataforma, identificar los hábitos de reacción y difusión con relación a los rasgos visuales de la fotografía y ahondar en las posibilidades y los riesgos que introducen los sistemas de inteligencia artificial (IA). El método de investigación sigue un enfoque de asociación cognitiva a través del análisis de varios estudios de casos gráficos en Instagram. El diseño exploratorio para abordar el papel de la imagen para comunicar la arquitectura en las redes sociales visuales surge del concepto de fragmento y de la visión sesgada, división requerida por la naturaleza de las sugerencias de imágenes relacionadas como método de navegación en Instagram. Los hallazgos identifican oportunidades y estrategias de acción para complementar los contenidos que construyen la imagen colectiva de la arquitectura adaptados a la lógica del nuevo escenario