530 research outputs found

    Snow cover as a morphogenic agent determining ground climate, landforms and runoff in the Valdecebollas massif, Cantabrian Mountains

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    Producción CientíficaLas nevadas son importantes eventos meteorológicos que afectan al ambiente físico de la Montaña Cantábrica. Este trabajo analiza los efectos sobre varios elementos como el relieve, el clima del suelo y la hidrología nival. El régimen termal del suelo y parámetros asociados se estudiaron utilizando data loggers de temperatura e imágenes de satélite, y se describieron en combinación con procesos geomorfológicos observados y formas de relieve. Se elaboró un mapa geomorfológico y se calcularon las tendencias en los patrones climáticos y en la escorrentía. La monitorización de la temperatura del suelo en años cálidos no ha dado los mejores resultados, aunque permiten conocer las condiciones límite para el desarrollo de procesos fríos. Los resultados muestran que los procesos geomorfológicos no son significativos, y que la solifluxión derivada de la fusión de nieve es el único proceso activo en años sin heladas o con un potente manto de nieve. La evolución de la precipitación en forma de nieve en décadas recientes en relación con los rasgos del flujo hídrico y del clima proporciona la certeza de que la distribución de la nieve también afecta a la eficacia de la generación de escorrentía y desplaza el pico de caudal en los ríos debido a una fusión más temprana.Ministerio de Educación y Formación Profesional (project FPU13/05837)Ministerio de Economía, Industria y Competitividad (project CGL2015-68144-R

    Spinning-off and joining ventures in microbiology

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    Computing lattice ideals of unions of monomial curves

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    AbstractIn this paper we present a combinatorial study of binomial ideals of dimension 1 of k[X1,…,Xn], using monomial parametrizations of the irreducible affine curves defined by their associated primes. We find an algorithm that checks whether or not the ideal of a union of monomial curves is binomial and another one that calculates curves such that their associated ideal is a prescribed lattice ideal

    Programación didáctica de 3º ESO. Unidad didáctica: espacio rural. Sociedad y actividades económicas

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    La siguiente programación didáctica para la asignatura de Geografía e Historia de 3º de la ESO aborda esencialmente de Geografía Humana surgidos de la ORDEN EDU/362/2015 de 4 de mayo de Castilla y León. La programación ofrece una reorganización de los contenidos del currículo en busca de adaptarlos a la realidad del alumno reorientándolos en función de la escala espacial. Se han buscado metodologías activas atendiendo a la zona de aprendizaje próximo del alumno, a su realidad histórico cultural y al ambiente en el que se desarrolla el aprendizaje. Adicionalmente se ha buscado que el alumno sea capaz de desarrollar el pensamiento espacial, necesario para poder concebir conceptos como el de espacio geográfico. Para ello se consideran esenciales las salidas didácticas y clases en el exterior. La unidad modelo trata el espacio rural de una forma actualizada tratando a este como un espacio con elementos sociales y económicos multifunción que escapan a la tradicional vinculación exclusiva entre materias primas y medio rural. Dentro de la unidad didáctica modelo planteada se ha diseñado una actividad de innovación educativa que combina la técnica del aprendizaje basado en juegos con la salida didáctica.Departamento de Didáctica de las Ciencias Sociales y ExperimentalesMáster en Profesor de Educación Secundaria Obligatoria y Bachillerato, Formación Profesional y Enseñanzas de Idioma

    A study on the effects of nativeness and gender on phonetic convergence in a tape-mediated map task

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    Màster de Lingüística Aplicada i Adquisició de Llengües en Contextos Multilingües, Departament de Filologia Anglesa i Alemanya, Universitat de Barcelona, Any: 2012, Supervisor: Dr. Joan Carles MoraPrevious studies examining phonetic convergence in terms of VOT adaptation in shadowing tasks and in interactions have found that such adaptation is highly influenced by social factors as nativeness and gender. Speakers adapted more and produced longer VOTs when the interlocutors’ VOTs were longer (Nielsen, 2011); however, Kim (2011) found that speakers adapted to both non-native and to native interlocutors. Studies focusing on same gender dyads found that female speakers have been found to converge more (Pardo, 2006) whereas Namy et.al (2002) found that male speakers adapted more often. This study assesses the convergence of 26 speakers’ productions of nonwords and words in terms of VOTs in a map task (Pardo, 2006) before (Time 1) and after (Time 2) a tape-mediated interaction (Lumley and O’Sullivan, 2005 ); in particular the effects of interlocutors’ nativeness and gender on speakers’ degree of convergence. Participants’ productions presented large variability which is in line with previous findings (Theodore et al, 2009; Allen, 2003; Pardo, 2006). Results show that the treatment had no effects; as little convergence was found for some but not all of the VOT measurements. Nativeness and gender did not have significant effects on VOT adaptation when the group of participants was considered as a whole, but some phonetic convergence was observed for some of the participants’ production

    Impacts of land abandonment and climate variability on runoff generation and sediment transport in the Pisuerga headwaters (Cantabrian Mountains, Spain)

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    Producción CientíficaThe Atlantic mountains of Spain are suffering a strong landscape change due to a widespread and intensive emigration to urban areas since the 1950s. This process, representative of global developments in an imminent future, is dominated by urban societies and leads to deep landscape changes in which crop fields and grasslands are abandoned and progressively covered by forest and shrubs. These dynamics have caused in turn a decrease in the runoff and a general slowdown of geomorphological processes. The impacts of land cover change have been simultaneous to an irregularity in precipitation and a significant increase of temperatures. With this background, this paper assesses in detail the impact of landscape change occurred over the last decades (twentieth and twenty-first centuries) on the water and sediment yield in the Pisuerga catchment headwaters (Cantabrian Mountains, N Spain). We analyzed the different components of Global Change in a catchment of 233 km2 extent, that has passed from 15 to 2 habitants/km2, from multiple data sources. Evolution of land cover was reconstructed from aerial photographs, remote sensing and other resources. The climatic parameters have been studied through meteorological stations, and the hydrological and sedimentological responses over time are based on available runoff data and sedimentological analysis. Our results show a significant decrease in water and sediment transport mainly driven by vegetation increase occurred in a non-linear way, more intense immediately after abandonment. This fact opens the opportunity to control more accurately water resources in Mediterranean catchments through land use management.Ministerio de Economía, Industria y Competitividad - Fondo Europeo de Desarrollo Regional (project CGL2015-68144-R)Ministerio de Educación y Formación Profesional (grant FPU13/05837

    Ground temperatures, landforms and processes in an Atlantic mountain. Cantabrian Mountains (Northern Spain)

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    This research was supported by the Formación de Profesorado Universitario FPU13/05837 (Ministerio de Educación Cultura y Deporte) program, by the OAPN 053/2010 (Organismo Autónomo Parques Nacionales, MAGRAMA) project, by the I + D + I CGL2015-68144-R (Ministerio de Economia y Competitividad) project, by the Leverhulme Trust International Network Grant IN-2012-140 and the Royal Geographical Society Dudley Stamp Memorial Award.Peer reviewedPostprin

    Molecular tools for breeding basidiomycetes

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    The industrial production of edible basidiomycetes is increasing every year as a response to the increasing public demand of them because of their nutritional properties. About a dozen of fungal species can be currently produced for food with sound industrial and economic bases. Notwithstanding, this production is threatened by biotic and abiotic factors that make it necessary to improve the fungal strains currently used in industry. Breeding of edible basidiomycetes, however, has been mainly empirical and slow since the genetic tools useful in the selection of the new genetic material to be introduced in the commercial strains have not been developed for these fungi as it was for other organisms. In this review we will discuss the main genetic factors that should be considered to develop breeding approaches and tools for higher basidiomycetes. These factors are (i) the genetic system controlling fungal mating; (ii) the genomic structure and organisation of these fungi; and (iii) the identification of genes involved in the control of quantitative traits. We will discuss the weight of these factors using the oyster mushroom Pleurotus ostreatus as a model organism for most of the edible fungi cultivated industrially

    Mapping the potential distribution of frozen ground in Tucarroya (Monte Perdido Massif, the Pyrenees)

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    Producción CientíficaEste trabajo describe la metodología utilizada para cartografiar los suelos potencialmente helados en el valle de Tucarroya, en el Parque Nacional de Ordesa. Para cartografiar las formas asociadas a la presencia de hielo se combinó trabajo de campo, datos térmicos procedentes de sensores automáticos de temperatura del suelo y mediciones de la base del manto de nieve (BTS), así como variables predictivas obtenidas de un Modelo Digital de Elevaciones (MDE). La cartografía diferencia cuatro ambientes, suelo no congelado con actividad de la helada, suelos helados estacionales, permafrost posible y permafrost probable. El mapa revela una extensión del permafrost muy limitada, con escasez de formas asociadas. Solo se ha detectado por encima de los 2700 m de altitud en ambientes topográficos favorables, pendientessuaves y protegidos de la radiación solar. Los suelos helados estacionales son los ambientes más comunes y se desarrollan por encima de los 2500 m s.n.m., mientras los suelos no congelados,pero con heladas solo están presentes entre los 2570 y los 2750 m de altitud en laderas que reciben elevada radiación solarMinisterio de Economía, Industria y Competitividad - Fondo Europeo de Desarrollo Regional (projects CGL2015-68144-R / CGL2017-82216-R)Geoparque de Sobrarbe (project R- ADM15/57

    Geomatic methods applied to the change study of the la Paúl Rock Glacier, Spanish Pyrenees

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    Producción CientíficaRock glaciers are one of the most important features of the mountain permafrost in the Pyrenees. La Paúl is an active rock glacier located in the north face of the Posets massif in the La Paúl glacier cirque (Spanish Pyrenees). This study presents the preliminary results of the La Paúl rock glacier monitoring works carried out through two geomatic technologies since 2013: Global Navigation Satellite System (GNSS) receivers and Terrestrial Laser Scanning (TLS) devices. Displacements measured on the rock glacier surface have demonstrated both the activity of the rock glacier and the utility of this equipment for the rock glaciers dynamic analysis. The glacier has exhibited the fastest displacements on its west side (over 35 cm yr-1), affected by the Little Ice Age, and frontal area (over 25 cm yr-1). As an indicator of permafrost in marginal environments and its peculiar morphology, La Paúl rock glacier encourages a more prolonged study and to the application of more geomatic techniques for its detailed analysis.Ministerio de Economía, Industria y Competitividad - Fondo Europeo de Desarrollo Regional (project CGL2015-68144-R)Junta de Extremadura - Fondo Europeo de Desarrollo Regional (project GR10071
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