Procedimiento de instalación, en un suelo o depósito de residuos, con elementos o compuestos contaminantes, de una barrera física multicapa para interrumpir flujos hídricos verticales

Número de publicación: 2 552 672 Número de solicitud: 201531013Procedimiento de instalación, en un suelo (1) o depósito de residuos, con elementos o compuestos contaminantes, de una barrera física multicapa para interrumpir flujos hídricos verticales, que supone una optimización de eficiencia y coste. Comprende disponer primera (4), segunda (6), tercera (8), cuarta (10) y quinta (12) capas de áridos (4, 6, 8, 10, 12) consecutivas, de granulometrías alternadas respectivamente, de abajo a arriba, de tipo grava, arenas, grava, arenas y grava, así como intercalar una capa de un material separador (3, 5, 7, 9, 11), inmediatamente antes de cada capa de áridos (4, 6, 8, 10, 12), para evitar mezcla de materiales entre suelo (1) y la primera capa de áridos (4) y entre cada dos capas de áridos (4, 6, 8, 10, 12) consecutivas. Las capas de áridos segunda (6) y cuarta (10) son compactadas para evitar filtración, preferentemente de acuerdo con su valor máximo de compactación Proctor.Universidad Politécnica de Cartagen

Patrones de variación espacial de las comunidades intermareales de la Isla de Tarifa (Cádiz)

El ecosistema mediolitoral se encuentra muy deteriorado en la mayor parte de la costa andaluza debido a la facilidad de acceso y la consiguiente presión humana. Sin embargo, la Isla de Tarifa refleja un estado de excelente conservación, en gran medida consecuencia de las restricciones de acceso y de su localización biogeográfica. Se seleccionaron un total de cinco estaciones distribuidas a lo largo de todo el perímetro de la Isla y se estudió la distribución vertical de las principales especies de macroalgas y de fauna sésil utilizándose cuadrículas de 50x50cm subdivididas en 25 subcuadrículas. Los valores de temperatura, salinidad, pH y concentración de oxígeno fueron similares en todas las estaciones. Las mayor diversidad se registró en los cinturones intermedios. Las especies de algas dominantes en todas las estaciones muestreadas fueron Asparagopsis armata y Corallina elongata que ocuparon los niveles más bajos, próximos al submareal, y el césped de Caulacanthus ustulatus y Gelidium spp que se extendió en los cinturones intermedios. En cuanto a la fauna sésil, estuvo dominada por el crustáceo cirrípedo Chatamalus stellatus y el molusco Littorina neritoides que ocuparon los niveles más altos. Las lapas Patella caerulea y P. rustica también fueron abundantes en la franja intermareal; la primera se distribuyó en la zona intermedia mientras que la segunda estuvo restringida a los niveles superiores. Las algas Codium adherens y Colpomenia sinuosa mostraron preferencia por las estaciones con mayor influencia del sedimento; Ulva rigida, Valonia utricularis y Osmundea pinnatifida predominaron en las estaciones expuestas a vientos de levante, mientras que Chaetomorpha linum se encontró en los cinturones expuestos al poniente. En cuanto a la fauna, el percebe Pollicipes pollicipes restringió su presencia a las estaciones de mayor grado de exposición, el pulmonado Siphonaria pectinata se registró en las estaciones más embolsadas y el cirrípedo C. stellatus mostró una clara preferencia por zonas expuestas a vientos de poniente. En el intermareal de la Isla de Tarifa se distribuyen las especies amenazadas Astroides calycularis, Dendropoma petraeum, Patella ferruginea y Cymbula nigra, lo que debe incrementar su valor en las estrategias de conservación.The intertidal ecosystems are seriously damaged in most of the Andalousian coast, mainly due to accessibility and human effect. However, Tarifa Island, is still in an excellent state of conservation, due to the access restrictions and unique biogeographical position. Five stations were selected along the island and vertical distribution of the main species of macroalgae and sessile fauna were studies using quadrats of 50x50cm (subdivided in 25 square units). Temperature, salinity, pH and oxygen concentration were similar in all the stations. The highest diversity was measured in the intermediate belts. The dominant species of algae were Asparagopsis armata and Corallina elongata, distributed in the lowest levels close to the subtidal, and the turf of Caulacanthus ustulatus and Gelidium spp, which occupied the intermediate levels. Regarding with the fauna, the crustacean Chtamalus stellatus and the mollusc Littorina neritoides dominated the highest levels. The limpets Patella caerulea and P. rustica were also abundant, the former distributed in the intermediate zone and the latter restricted to the upper belts. The algae Codium adherens and Colpomenia sinuosa preferred stations with sediment influence, Ulva rigida, Valonia utricularis and Osmundea pinnatifida were dominant in the stations exposed to east winds, whereas Chaetomorpha linum was found in sites exposed to west winds. In connection with the fauna, the barnacle Pollicipes pollicipes was only present in the most exposed stations, Siphonaria pectinata was registered in the less exposed sites and C. stellatus dominated the stations exposed to west winds. The endangered species Astroides calycularis, Dendropoma petraeum, Patella ferruginea and Cymbula nigra are also present along Tarifa intertidal, which should increase the value of the site in conservation policies.Ministerio de Educación y Ciencia CGL2007-60044/BOSConsejería de Innovación, Ciencia y Empresa de la Junta de Andalucía P07-RNM- 0252

Pleistocene glacial fluctuations and chronology in the Pas Mountains (Cantabrian Mountains)

RESUMEN. En este trabajo se muestra la evolución de los glaciares de las Montañas de Pas, en la Cordillera Cantábrica Oriental. Se han realizado una cartografía geomorfológica, análisis morfoestratigráfico, prospección eléctrica y sísmica y dataciones en turberas intramorrénicas y till. El complejo morrénico externo (F-I) muestra una edad para la máxima extensión glaciar anterior a 29.1509-28.570 cal a BP. En todo el macizo se ha detectado un segundo avance y equilibrio glaciar (F-II), con sus frentes en posiciones cercanas a la fase anterior. Por último, dos fases (F-III y F-IV) se caracterizaron por la presencia de glaciares muy pequeños, alojados en los circos. La última fase de equilibrio glaciar se ha atribuido a las fases tardías del Pleistoceno, coetáneas o anteriores al Tardiglaciar. Las dataciones realizadas en las Montañas Pasiegas son acordes con dataciones previas realizadas en otros macizos de la Cordillera Cantábrica y confirma la existencia de un máximo glaciar local anterior al LGM Europeo.ABSTRACT. This paper analyses the glacial evolution of the Pas Mountains, in the Eastern Cantabrian Mountains, the glacial landforms and deposits by geomorphological mapping, electric and seismic surveys, and dating intramorainic peat bog and till deposits. The external morainic complex (S-I) shows a glacial extension maximum before 29.150-28.570 cal a BP. A second glacial advance and equilibrium (S-II) have been studied in the entire massif, with glaciers reaching similar positions to the previous phase. Finally, two phases (S-III and S-IV) with very small glaciers developed in the cirque. The last equilibrium glacial phase has been attributed to Late Pleistocene cold phases, previous to Tardiglacial ones. Dating in the Pas Mountains are in agreement with previous dating in the Cantabrian Range and bears out the existence of a glacial maximum, previous to the European LGM

Extending magny-cours cache coherence

One cost-effective way to meet the increasing demand for larger high-performance shared-memory servers is to build clusters with off-the-shelf processors connected with low-latency point-to-point interconnections like HyperTransport. Unfortunately, HyperTransport addressing limitations prevent building systems with more than eight nodes. While the recent High-Node Count HyperTransport specification overcomes this limitation, recently launched twelve-core Magny-Cours processors have already inherited it and provide only 3 bits to encode the pointers used by the directory cache which they include to increase the scalability of their coherence protocol. In this work, we propose and develop an external device to extend the coherence domain of Magny-Cours processors beyond the 8-node limit while maintaining the advantages provided by the directory cache. Evaluation results for systems with up to 32 nodes show that the performance offered by our solution scales with the number of nodes, enhancing the directory cache effectiveness by filtering additional messages. Particularly, we reduce execution time by 47 percent in a 32-die system with respect to the 8-die Magny-Cours configuration.This work was supported by the Spanish MICINN, Consolider Programme and Plan E funds, as well as European Commission FEDER funds, under Grants CSD2006-00046 and TIN2009-14475-C04-01/03. It was also partly supported by (PROMETEO from Generalitat Valenciana (GVA) under Grant PROMETEO/2008/060).Ros Bardisa, A.; Cuesta Sáez, BA.; Fernández-Pascual, R.; Gómez Requena, ME.; Acacio Sánchez, ME.; Robles Martínez, A.; García Carrasco, JM.... (2012). Extending magny-cours cache coherence. IEEE Transactions on Computers. 61(5):593-606. https://doi.org/10.1109/TC.2011.65S59360661

Tissue-specific effects of central leptin on the expression of genes involved in lipid metabolism in liver and white adipose tissue

Copyright (2007) The Endocrine Society .The paper can be found at the following URL on the website http://endo.endojournals.org

Structure-activity relationship study of cationic carbosilane dendritic systems as antibacterial agents

This work focuses on the antibacterial activity against Gram-positive Staphylococcus aureus and Gramnegative Escherichia coli and the hemolytic properties of two types of ammonium cationic carbosilane systems: dendrimers and dendrons. The effects of: i) the generation, ii) the type of peripheral groups near the cationic charges (a SiMe2 moiety or a S atom depending on the synthetic procedure, hydrosilylation or thiol-ene addition, respectively), iii) the core of dendrimers (polyphenoxo vs. Si atom) and iv) the focal point of dendrons (-N3, -NH2, -OH) have been assessed. The structure-activity relationship analysis indicates the importance of an adequate balance between the hydrophilic and lipophilic fragments of these molecules to reach the best antibacterial activity. Regarding hemolysis, lowest toxicity values were registered for dendritic systems with a sulfur atom close to the surface and, in the particular case of dendrons, for those with a hydroxyl focal point. One dendrimer and one dendron, both bearing a sulfur atom close to the surface, scored best in the activity-toxicity relationship analysis and were chosen for resistance assays. No changes in the inhibitory and bactericidal capacity in the case of the dendron and only a slight increase of these values for the dendrimer were observed after 15 subculture cycles. Furthermore, these two compounds stayed active towards different strains of resistant bacteria and avoid formation of biofilm at concentrations over the minimum inhibitory concentration (MIC).Ministerio de Economía y Empres

Renovación de la acreditación de la titulación Máster Universitario en Prevención de Riesgos laborales

El Máster universitario en prevención de riesgos laborales comenzó a impartirse en la Escuela Politécnica Superior de la Universidad de Alicante en el curso 2012/13. En el curso 2015/16 se desarrollara la cuarta edición de esta titulación. El Real Decreto 1393/2007, de 29 de octubre, por el que se establece la ordenación de las enseñanzas universitarias oficiales, modificado por el Real Decreto 861/2010, de 2 de julio, señala en el artículo 27 que, una vez iniciada la implantación de las enseñanzas, la ANECA, o los órganos de evaluación que la ley de las comunidades autónomas determinen, llevarán a cabo el seguimiento del cumplimiento del proyecto contenido en el plan de estudios. Al Máster universitario en prevención de riesgos laborales le corresponde en el curso 2015/16 la renovación de su acreditación, en base a los resultados de la docencia de los cursos 2013/14 y 2014/15. Este proyecto se centra en la preparación de los datos necesarios para el informe de autoevaluación, que será necesario presentar para la evaluación externa de la renovación de la acreditación de la titulación

A comparison of the taphonomic attributes of quarries VM3 and VM4 of the Early Pleistocene site of Venta Micena (Baza Basin, SE Spain)

The site of Venta Micena (Guadix-Baza Depression, SE Spain), a rich Fossil-Lagerstätten of late Early Pleistocene age (1.6-1.5 Ma), preserves a diverse assemblage of large mammals. Up to date, >24,000 skeletal remains have been unearthed from the surface excavated (~400 m2) in the two main quarries of the site, VM3 and VM4, which represents a density of fossils of >60/m2. Although this density is not homogeneously recorded across the 80-120 cm thick VM stratum, which outcrops over ~2.5 km, it suggests that tens of millions of fossils were preserved in the micritic limestones of this lithological unit. VM3 has been interpreted as a den of the giant hyena Pachycrocuta brevirostris in the plain that surrounded the Baza paleolake. Taphonomic analyses showed that the hyenas: (i) scavenged the prey hunted by the hypercarnivores, sabertoothed felids and wild dogs; (ii) transported the remains to their communal den as whole carcasses or selected anatomical parts; and (iii) fractured the skeletal parts according to their marrow contents and mineral density, which resulted in well-defined consumption sequences. In the case of VM4, an excavation quarry ~350 m distant from VM3, preliminary taphonomic analyses of the assemblage showed several differences, including: (i) a higher frequency of elements in anatomical connection than in VM3; (ii) a lower proportion of bones tooth-marked by carnivores (5.5%) compared with their frequency in VM3 (29.4%); (iii) a lower proportion of remains with salivary and gastric alterations (0.06% in both cases) than in VM3 (0.34% and 0.15%, respectively); and (iv) a less advanced degree of weathering (90.8% of bones show weathering stage 0 in VM4 compared to 75.9% in VM3).ICAZ Taphonomy Working Group, CSIC, MNCN Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tec

Deciphering the record of hyaenic activity in the Early Pleistocene site of Fuente Nueva-3 (Baza Basin, SE Spain)

FN3 is an open air site, dated ~1.4 Ma. Their archaeological levels preserve evidences of human presence, consisting in lithic artefacts and cuts and percussion marks on bones. The lithic remains are associated with abundant macromammals bones with a very wide size range, from proboscideans to small mustelids. Carnivores are represented, mainly, by isolated teeth, bellowing to canids, ursids, felids and hyaenids, and their activity is recorded by the presence of different tooth marks types. However, there exists an important difference in the carnivore record between the levels, consisting in the presence of more than 200 coprolites in the Upper Level, whereas in the Lower Level these elements are practically absent. For the identification of the defecating organism, different analyses have been performed. The morphological study evidences the presence of the seven shape-types of pellets, although the most common morphologies are round, oval and disk. The colour of hyena faeces is also very characteristic, colour analysis of FN3 coprolites shows a predominance of whitish and very pale brown tonalities. To determine the composition, the samples were studied by XRD, XRF and SEM. The results have revealed that the coprolites mostly consist of calcium phosphate. These data are consistent with the expected composition of faeces in an organism that ingests a large amount of bones, in addition, macroscopic observation of the coprolites surface evidence the presence of numerous fragments of digested bones within them. All these features allow us to adscribe the FN3 coprolites to the hyaena Pachycrocuta brevirostris, species of which several teeth have been found at this site.This record manifests a great difference between both archaeological levels, showing in the Upper Level a scenario were hominin and hyaenids coexisted and competed for food resources, whereas in the Lower Level hyaenas were practically absent, and the main modifying agent was early Homo.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

Hominins, mammoths, saber-tooths and giant hyenas in the Early Pleistocene of the Baza Basin (SE Spain)

The Baza Basin preserves an exceptional Plio-Pleis- tocene palaeontological record, which includes the earliest evidence of human presence in western Eu- rope, dated to ~1.4 Ma, coming from the sites of Barranco León and Fuente Nueva-3, in the vicinity of the town of Orce. In this geographical region, early Homo coexisted and likely competed with the giant, short-faced hyena Pachycrocuta brevirostris for the exploitation of prey carcasses abandoned by saber-tooth cats (Megantereon and Homotheri- um). The presence of these hypercarnivorous felids favored the surviving of both scavenging species (Homo and Pachycrocuta), as they exploited their prey to a lesser extent than the living pantherine felids. In this context, proboscideans were an ex- ploited food resource, as evidenced by the presence of a partial skeleton of the mammoth Mammuthus meridionalis in Fuente Nueva-3, which was sur- rounded by lithic artifacts and hyena coprolites. This association suggests that both hominins and hyenas fed on the mammoth carcass. Some paths for elucidating their pattern of access to these re- sources are also discussed.The symposium and the volume "Human-elephant interactions: from past to present" were funded by the Volkswagen Foundation