Effect of DEM resolution on simulated hydrological connectivity in a Mediterranean agro-ecosystem with different crops

1 .pdf file, copy of the original Poster.- 1 .pdf file, copy of the detailed abstract into the official Book Abstracts of the Meeting.We did not find any publication dealingwiththe effect of DEMresolution on the magnitude and spatial patterns of simulated HC inwoody crops (vineyard, olive, etc.). We seek to prove that connectivity thresholds and even the simulated functional HC, related to different hydrological processes, depends on the DEM resolution.This research was funded by the project “ Environmental and economic impact of soil loss (soil erosion footprint) in agro-ecosystems of the Ebro river basin: numerical modelling and scenario analysis (EuroCostModel) (CGL2014-54877- JOIN)” of the Spanish Ministry of Economy and Competitiveness.Peer reviewe

Effect of LIDAR- and photogrammetry-derived DEM resolution on simulated hydrological features in contrasted agricultural systems (NE Spain)

1 .pdf file with the detailed abstract from the JGU Book Abstracts.- 1 .pdf copy of the front page of the oral presentation of the authors.The raster digital elevation model (DEM) resolution has influence on simulating hydrological features (stream characterization and morphology, watershed delineation and size, flow accumulation threshold values). The extra detail (higher quality) inherent in very high terrestrial data has benefits to analyse hydrological simulations. The trunks of the woody crops (vineyard, almond, olive, orange, coffee, tea and other fruit groves) and the plantation disposition act as permanent features in the land controlling the overland flow patterns. The scale-dependent information is necessary to utilise many scientific theories and provides hypotheses to be tested using large scale experimentation. The current advancements in computing facilities allow handle large data sets and model hydrological processes at catchment scale and using small grid cell sizes. However, we did not find any study dealing with the effect of DEM resolution on the magnitude and patterns of simulated hydrological features in woody crops. In this study, we evaluate the effect of coarse (5x5 m), high (0.5 to 1 m) and very high (0.10 m and lower) spatial resolution DEMs on simulating hydrological features and connectivity (HC) in two contrasted agricultural systems.This research was funded by the Spanish project “EroCostModel” (Ref. CGL2014-54877-JIN).Peer reviewe

Habitat and development. Exploring paths of educational innovation in architecture and urbanism

Han pasado dos décadas desde que aparecieron las primeras asignaturas que incorporaban la habitabilidad básica o la cooperación al desarrollo en la formación del arquitecto en España. Desde entonces, las escuelas de arquitectura han ido incorporando contenidos que son cada vez más demandados, tanto por la sociedad como por los propios alumnos. La crisis económica iniciada en 2008, o los Objetivos de Desarrollo Sostenible aprobados en 2015 por Naciones Unidas, nos deben hacer reflexionar sobre la centralidad de estos temas en la formación de la arquitectura y el urbanismo. Desde el año de su creación, en 2001, la asignatura optativa Hábitat y desarrollo se ha propuesto visibilizar la arquitectura social como una parte importante en la formación del arquitecto, en la que se prioriza el proceso arquitectónico, íntimamente relacionado con el habitar (el habitante, los hábitos y su relación con el lugar), frente al producto (el objeto, el edificio, como una síntesis formal de esa arquitectura). En la asignatura se hace una lectura del papel que la cooperación al desarrollo puede jugar en la formación del arquitecto. La participación ciudadana es otro de los temas transversales que se incorporan en la asignatura, formando a los estudiantes en técnicas específicamente aplicables al campo de la arquitectura y del urbanismo. Hábitat y desarrollo se imparte en el primer semestre de quinto curso del grado en arquitectura de la Universidad de Las Palmas de Gran Canaria.Habitat and development. Exploring paths of educational innovation in architecture and urbanism. It has been two decades since the first subjects that incorporated basic habitability or development cooperation appeared in the training of the architect in Spain. Since then the schools of architecture have been incorporating content that is increasingly demanded by both society and students themselves. The economic crisis initiated in 2008 or the Sustainable Development Objectives approved in 2015 by the United Nations should make us reflect on the centrality of these issues in the formation of architecture and urbanism. Since the year of its creation, in 2001, the optional Habitat and Development has been proposed to make visible the social architecture as an important part in the architect’s training, in which the architectural process is prioritized, closely related to the habitat (the inhabitant, the habits and their relation to the place), in front of the product (the object, the building, as a formal synthesis of that architecture). The subject makes a reading of the role that development cooperation can play in the training of the architect. Citizen participation is another of the cross-cutting themes that are incorporated into the subject by training students in techniques specifically applicable to the field of architecture and urbanism. Habitat and development is taught in the first semester of fifth year of the degree in architecture of the University of Las Palmas de Gran Canaria

Vidas medias de niveles del potasio neutro y del ionizado

Tesis Univ. Complutense de Madrid, 1982.Fac. de Ciencias FísicasTRUEProQuestpu

Endozoochorus seed dispersal by goats: recovery, germinability and emergence of five Mediterranean shrub species

Herbivores can play an important role as seed dispersal vectors, ungulates constituting potential seed dispersal agents of Mediterranean grasses and shrubs. We evaluated the role of domestic goats as seed dispersers of five representative Mediterranean forage shrub species [Cistus albidus L., Phillyrea angustifolia L., Calicotome villosa (Poir.) Link., Rhamnus lycioides L. and Atriplex halimus L.]. Following seed ingestion by goats, total faeces were collected at 24-h intervals for five days. The total number of seeds recovered varied among species, with R. lycioides showing the minimum recovery percentage (1.3%) and C. albidus (35.8%), the maximum. Seed recovery was significantly related to seed hardness and length. In most species, the maximum amount of seeds recovered occurred 48-72 h after ingestion. The passage through the goat gut significantly depressed seed germination in C. albidus, C. villosa and A. halimus; inhibited it in R. lycioides and increased it in P. angustifolia. Seedling emergence was significantly lower in intact dung pellets than in broken-down ones, and both significantly lower than in uneaten seeds (control). The results of this study show that goats can potentially favor or inhibit seed dispersal of browsed Mediterranean shrub species. Therefore, goat grazing could be a potential management tool for expanding target shrub species populations or preventing shrub encroachment in undesired areas

FTCS finite difference scheme GPGPU parallel computing for the heat conduction equation = Programación en paralelo GPGPU del método en diferencias finitas FTCS para la ecuación del calor

En el presente artículo se muestran las ventajas de la programación en paralelo resolviendo numéricamente la ecuación del calor en dos dimensiones a través del método de diferencias finitas explícito centrado en el espacio FTCS. De las conclusiones de este trabajo se pone de manifiesto la importancia de la programación en paralelo para tratar problemas grandes, en los que se requiere un elevado número de cálculos, para los cuales la programación secuencial resulta impracticable por el elevado tiempo de ejecución. En la primera sección se describe brevemente los conceptos básicos de programación en paralelo. Seguidamente se resume el método de diferencias finitas explícito centrado en el espacio FTCS aplicado a la ecuación parabólica del calor. Seguidamente se describe el problema de condiciones de contorno y valores iniciales específico al que se va a aplicar el método de diferencias finitas FTCS, proporcionando pseudocódigos de una implementación secuencial y dos implementaciones en paralelo. Finalmente tras la discusión de los resultados se presentan algunas conclusiones. In this paper the advantages of parallel computing are shown by solving the heat conduction equation in two dimensions with the forward in time central in space (FTCS) finite difference method. Two different levels of parallelization are consider and compared with traditional serial procedures. We show in this work the importance of parallel computing when dealing with large problems that are impractical or impossible to solve them with a serial computing procedure. In the first section a summary of parallel computing approach is presented. Subsequently, the forward in time central in space (FTCS) finite difference method for the heat conduction equation is outline, describing how the heat flow equation is derived in two dimensions and the particularities of the finite difference numerical technique considered. Then, a specific initial boundary value problem is solved by the FTCS finite difference method and serial and parallel pseudo codes are provided. Finally after results are discussed some conclusions are presented

SU(3)-breaking corrections to the hyperon vector coupling f(1)(0) in covariant baryon chiral perturbation theory

We calculate the SU(3)-breaking corrections to the hyperon vector coupling f(1)(0) up to O(p(4)) in covariant baryon chiral perturbation theory with dynamical octet and decuplet contributions. We find that the decuplet contributions are of similar or even larger size than the octet ones. Combining both, we predict positive SU(3)-breaking corrections to all the four independent f(1)(0)'s (assuming isospin symmetry), which are consistent, within uncertainties, with the latest results from large N-c fits, chiral quark models, and quenched lattice QCD calculations