(G,ϕ) -crossed product on (G,ϕ)-quasiassociative algebras

The notions of (G,ϕ)-crossed product and quasicrossed system are introduced in the setting of (G,ϕ)-quasiassociative algebras, i.e., algebras endowed with a grading by a group G, satisfying a ``quasiassociative'' law. It is presented two equivalence relations, one for quasicrossed systems and another for (G,ϕ)-crossed products. Also the notion of graded-bimodule in order to study simple (G,ϕ)-crossed products is studied

Multitemporal analysis of gully erosion in olive groves by means of digital elevation models obtained with aerial photogrammetric and LiDAR data

La erosión en cárcavas es uno de los principales procesos de degradación del suelo y representa entre el 50% y el 90% de la erosión total a escala de cuenca. Por tanto, su caracterización precisa ha recibido una atención creciente en los últimos años. Las técnicas geomáticas, principalmente fotogrametría y LiDAR, pueden apoyar el análisis cuantitativo en la formación y el desarrollo de cárcavas. Este artículo aborda la aplicación de estas técnicas utilizando fotografías aéreas y datos LiDAR aéreos, disponibles en servidores de bases de datos públicos, para identificar y cuantificar la erosión de cárcavas a lo largo de un período bastante prolongado (1980-2016) en un área de 7,5 km2 de olivar. Se orientaron varios vuelos históricos (1980, 1996, 2001, 2005, 2009, 2011, 2013 y 2016) en un sistema de referencia de coordenadas común con la nube de puntos LiDAR, cuya calidad fue previamente testeada con puntos medidos con GNSS sobre el terreno. A partir de los vuelos orientados, se obtuvieron modelos digitales de superficie (MDS) y ortofotografías. A continuación, el análisis del MDS de diferencias permitió la identificación de cárcavas, el cálculo de las áreas afectadas, así como la estimación de diferencias de altura y volúmenes entre modelos, considerando una incertidumbre estimada de ± 1 m. Estos análisis dan como resultado una incisión promedio de 0,50 m y una pérdida de volumen de 85000 m3 en el área de la cárcava, con algunos períodos (2009-2011 y 2011-2013) mostrando tasas de 10000 a 20000 m3/año (20 a 40 t/ha* año). Estos periodos correspondieron a años donde se produjeron episodios lluviosos destacados en la región, lo que condujo a una mayor actividad erosiva. En el periodo 2009-2011 destacó fundamentalmente un proceso de incisión, mientras que a partir de 2011-2013 el mecanismo fue de ensanchamiento de la cárcava. La edición manual de MDS para la obtención de modelos digitales de elevación (MDT) de un sector de detalle ha permitido analizar la influencia de esta operación en los cálculos de erosión, encontrando que no es significativa salvo en zonas de cárcavas con forma muy pronunciada

Novel haloalkaliphilic methanotrophic bacteria: An attempt for enhancing methane bio-refinery

Producción CientíficaMethane bioconversion into products with a high market value, such as ectoine or hydroxyectoine, can be optimized via isolation of more efficient novel methanotrophic bacteria. The research here presented focused on the enrichment of methanotrophic consortia able to co-produce different ectoines during CH4 metabolism. Four different enrichments (Cow3, Slu3, Cow6 and Slu6) were carried out in basal media supplemented with 3 and 6% NaCl, and using methane as the sole carbon and energy source. The highest ectoine accumulation (∼20 mg ectoine g biomass−1) was recorded in the two consortia enriched at 6% NaCl (Cow6 and Slu6). Moreover, hydroxyectoine was detected for the first time using methane as a feedstock in Cow6 and Slu6 (∼5 mg g biomass−1). The majority of the haloalkaliphilic bacteria identified by 16S rRNA community profiling in both consortia have not been previously described as methanotrophs. From these enrichments, two novel strains (representing novel species) capable of using methane as the sole carbon and energy source were isolated: Alishewanella sp. strain RM1 and Halomonas sp. strain PGE1. Halomonas sp. strain PGE1 showed higher ectoine yields (70–92 mg ectoine g biomass−1) than those previously described for other methanotrophs under continuous cultivation mode (∼37–70 mg ectoine g biomass−1). The results here obtained highlight the potential of isolating novel methanotrophs in order to boost the competitiveness of industrial CH4-based ectoine production.Ministerio de Economía, Industria y Competitividad (Project CTM2015-70442-R project and Red NOVEDAR)Junta de Castilla y León (programa de apoyo a proyectos de investigación – Ref. UIC71)European Union through the FEDER Funding Program (PhD Grant contract Nº E-47-2014-0140696

Patrones diferenciales entre padres y profesorado en la detección de TDAH

El diagnóstico del Trastorno por Déficit de Atención con Hiperactividad (TDAH) se ha ido incrementando en los últimos años (CDC, 2014; UNESCO, 2011: 14). Los criterios sobre el TDAH se han ido aclarando entre la comunidad científica. Sin embargo, se trata de un trastorno complejo que requiere la participación en el diagnóstico de un equipo multidisciplinar. MÉTODO. En este estudio se analiza, con una muestra (N = 331) de alumnado de 6 a 9 años de Cuenca, la existencia de patrones diferenciales entre las dos valoraciones, mediante las Escalas EMA-D.D.A. (García-Pérez y Magaz, 2006). Se utilizan diversas aproximaciones de contraste de hipótesis, así como se valora la consistencia interna de las escalas. RESULTADOS. Las diferencias que se observan apuntan al influjo diferencial del contexto observacional y es coincidente con los resultados obtenidos en otros estudios. DISCUSIÓN. En el diagnóstico se requiere de una detección escolar, y una evaluación clínica y otra neurológica. En la detección escolar se utilizan escalas de evaluación comportamental, a las que responden padres y profesorado. El establecimiento del diagnóstico requiere que ambas valoraciones sean positivas, es decir, coincidentes en la detección de condición TDAH. Los estudios realizados muestran que existen diferencias entre ambas valoraciones hecho que analizaremos en la interpretación y conclusiones del presente trabajo

Modelling barrier beaches under storms with XBEACH: The case of the Trabucador bar

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Mass-metallicity relation explored with CALIFA I. Is there a dependence on the star-formation rate?

We studied the global and local M-Z relation based on the first data available from the CALIFA survey (150 galaxies). This survey provides integral field spectroscopy of the complete optical extent of each galaxy (up to 2−3 effective radii), with a resolution high enough to separate individual Hii regions and/or aggregations. About 3000 individual Hii regions have been detected. The spectra cover the wavelength range between [OII]3727 and [SII]6731, with a sufficient signal-to-noise ratio to derive the oxygen abundance and star-formation rate associated with each region. In addition, we computed the integrated and spatially resolved stellar masses (and surface densities) based on SDSS photometric data. We explore the relations between the stellar mass, oxygen abundance and star-formation rate using this dataset. We derive a tight relation between the integrated stellar mass and the gas-phase abundance, with a dispersion lower than the one already reported in the literature (σΔlog (O/H) = 0.07 dex). Indeed, this dispersion is only slightly higher than the typical error derived for our oxygen abundances. However, we found no secondary relation with the star-formation rate other than the one induced by the primary relation of this quantity with the stellar mass. The analysis for our sample of ∼3000 individual Hii regions confirms (i) a local mass-metallicity relation and (ii) the lack of a secondary relation with the star-formation rate. The same analysis was performed with similar results for the specific star-formation rate. Our results agree with the scenario in which gas recycling in galaxies, both locally and globally, is much faster than other typical timescales, such like that of gas accretion by inflow and/or metal loss due to outflows. In essence, late-type/disk-dominated galaxies seem to be in a quasi-steady situation, with a behavior similar to the one expected from an instantaneous recycling/closed-box model.Nacional de Investigación y Desarrollo funding programs of the Spanish Ministerio de Ciencia e Innovación AYA2010-22111-C03-03 AYA2010-10904ERamon y Cajal project of the spanish Ministerio de Economía y Competitividad RyC-2011-07590Academy of Sciences of the Czech Republic (ASCR Internal support program of international cooperation projects-PIPPMS) M100031241 M100031201Czech Republic program for the long-term development of the research institution RVO67985815Plan Nacional de Investigación y Desarrollo funding program AYA2010-15081Consejo Nacional de Ciencia y Tecnología (CONACyT)Spanish grant AYA2010-15169Junta de Andalucía TIC114Excellence Project P08-TIC-03531Consejo Superior de Investigaciones Científicas (CSIC)Junta para la Ampliación de EstudiosEuropean Social Fund (ESF)spanish programme of International Campus of Excellence MoncloaSpanish PNAYA AYA2010-21887Spanish Government CSD2006-00070 AYA2012-38491-C02-02Junta de Andalucía TIC114Autonomic Government of Andalusia P08-TIC-4075 TIC-126CienciaPortuguese Foundation for Science and TechnologyEuropean Commission European Commission Joint Research Centre European Social Fund (ESF)Portuguese Foundation for Science and Technology SFRH/BPD/66958/2009National Science Foundation (NSF

Higher socioeconomic status is related to healthier levels of fatness and fitness already at 3 to 5 years of age: The PREFIT project: Relation between socioeconomic status, fatness and fitness in preschoolers

This study aimed to analyse the association between socioeconomic status (SES) and fatness and fitness in preschoolers. 2, 638 preschoolers (3–5 years old; 47.2% girls) participated. SES was estimated from the parental educational and occupational levels, and the marital status. Fatness was assessed by body mass index (BMI), waist circumference (WC), and waist-to-height ratio (WHtR). Physical fitness components were assessed using the PREFIT battery. Preschoolers whose parents had higher educational levels had lower fatness (P < 0.05). BMI significantly differed across occupational levels of each parent (P < 0.05) and WHtR across paternal levels (P = 0.004). Musculoskeletal fitness was different across any SES factor (P < 0.05), except handgrip across paternal occupational levels (P = 0.05). Preschoolers with high paternal occupation had higher speed/agility (P = 0.005), and those with high or low maternal education had higher VO2max (P = 0.046). Odds of being obese and having low musculoskeletal fitness was lower as SES was higher (P < 0.05). Those with married parents had higher cardiorespiratory fitness than single-parent ones (P = 0.010). School-based interventions should be aware of that children with low SES are at a higher risk of obesity and low fitness already in the first years of life

Contrasting growth and water use efficiency after thinning in mixed Abies pinsapo–Pinus pinaster–Pinus sylvestris forests

Foresters frequently lack sufficient information about thinning intensity effects to optimize semi-natural forest management and their effects and interaction with climate are still poorly understood. In an Abies pinsapo–Pinus pinaster–Pinus sylvestris forest with three thinning intensities, a dendrochronologial approach was used to evaluate the short-term responses of basal area increment (BAI), carbon isotope (δ13C) and water use efficiency (iWUE) to thinning intensity and climate. Thinning generally increased BAI in all species, except for the heavy thinning in P. sylvestris. Across all the plots, thinning increased 13C-derived water-use efficiency on average by 14.49% for A. pinsapo, 9.78% for P. sylvestris and 6.68% for P. pinaster, but through different ecophysiological mechanisms. Our findings provide a robust mean of predicting water use efficiency responses from three coniferous species exposed to different thinning strategies which have been modulated by climatic conditions over time

Integration of the Barcelona Supercomputing Center for CMS computing: Towards large scale production

The CMS experiment is working to integrate an increasing number of High Performance Computing (HPC) resources into its distributed computing infrastructure. The case of the Barcelona Supercomputing Center (BSC) is particularly challenging as severe network restrictions prevent the use of CMS standard computing solutions. The CIEMAT CMS group has performed significant work in order to overcome these constraints and make BSC resources available to CMS. The developments include adapting the workload management tools, replicating the CMS software repository to BSC storage, providing an alternative access to detector conditions data, and setting up a service to transfer produced output data to a nearby storage facility. In this work, we discuss the current status of this integration activity and present recent developments, such as a front-end service to improve slot usage efficiency and an enhanced transfer service that supports the staging of input data for workflows at BSC. Moreover, significant efforts have been devoted to improving the scalability of the deployed solution, automating its operation, and simplifying the matchmaking of CMS workflows that are suitable for execution at BSC

Oceanographic processes and products around the Iberian margin: a new multidisciplinary approach

Our understanding of the role of bottom currents and associated oceanographic processes (e.g, overflows, barotropic tidal currents) including intermittent processes (e.g, vertical eddies, deep sea storms, horizontal vortices, internal waves and tsunamis) is rapidly evolving. Many deep-water processes remain poorly understood due to limited direct observations, but may generate significant depositional and erosional features on both short-and long-term time scales. This paper describes these oceanographic processes and examines their potential role in the sedimentary features around the Iberian margin. The paper explores the implications of the processes studied, given their secondary role relative to other factors such as mass-transport and turbiditic processes. An integrated interpretation of these oceanographic processes requires an understanding of contourites, sea-floor features, their spatial and temporal evolution, and the near-bottom flows that form them. Given their complex, three-dimensional and temporally-variable nature, integration of these processes into sedimentary, oceanographic and climatological frameworks will require a multidisciplinary approach that includes Geology, Physical Oceanography, Paleoceanography and Benthic Biology. This approach will synthesize oceanographic data, seafloor morphology, sediments and seismic images to improve our knowledge of permanent and intermittent processes around Iberia, and evaluate their conceptual and regional role in the sedimentary evolution of the margin. © 2015, Instituto Geologico y Minero de Espana. All rights reservedEl conocimiento del papel de las corrientes de fondo y los procesos oceanográficos asociados (overflows, corrientes de marea barotrópicas, etc), incluyendo procesos intermitentes (eddies, tormentas profundas, ondas internas, tsunamis, etc), está evolucionando rápidamente. Muchos de estos procesos son poco conocidos, en parte debido a que las observaciones directas son limitadas, si bien pueden generar importantes rasgos deposicionales y/o erosivos a escalas temporales de corto o largo periodo. Este artículo describe dichos procesos oceanográficos y examina su influencia en la presencia de rasgos sedimentarios alrededor del margen Ibérico. El trabajo discute las implicaciones de dichos procesos y el papel secundario que juegan en relación a otros factores tales como los procesos de transporte gravitacionales en masa y los turbidíticos. Para un mejor conocimiento de la sedimentación marina profunda, y en concreto de los sistemas contorníticos, se requiere de una interpretación de estos procesos oceanográficos, cuál es su evolución espacial y temporal, cómo afectan a las corrientes de fondo y cómo se ven afectados por la topografía submarina. Sin embargo, dada su complejidad y su variable naturaleza tridimensional y temporal, es necesario que estos procesos se integren en un marco sedimentológico, oceanográfico y climatológico con un enfoque multidisciplinar que incluyan la Geología, la Oceanografía Física, la Paleoceanografía y la Biología bentónica. Esta integración requiere de una mayor compilación de datos oceanográficos, de un mejor conocimiento de la morfología del fondo marino, y de una mejor caracterización de los sedimentos en ambientes profundos. Todo ello permitirá mejorar nuestro conocimiento de los procesos permanentes e intermitentes alrededor de Iberia y evaluar su verdadero efecto en la evolución sedimentaria delos márgenes continentales que le rodeanPostprint0,000