930 research outputs found

    El CD-ROM del Museo Thyssen-Bornemisza

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    Écija en las páginas web de Turismo Andaluz y de la Diputación Provincial de Sevilla

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    La carta de servicios del Instituto Andaluz del Patrimonio Histórico

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    La elaboración de la Carta de Servicios del IAPH, aprobada por resolución de 17 de enero de 2005 de la Dirección General de Bienes Culturales, se enmarca dentro del proceso general de mejora de la calidad de los servicios de la administración autonómica andaluza. El punto de partida de su contenido es el proyecto del Catálogo de Servicios del IAPH 2003, donde ya se incluyeron las diferentes especialidades de servicios que suministra la institución: servicios de documentación, intervención, arqueología subacuática y formación-comunicación. Este primer catálogo fue revisado, adaptado a la normativa general para las Cartas de Servicios de la Junta de Andalucía (Decreto 317/2003) y a las pautas desarrolladas por la Dirección General de Administración Electrónica y Calidad de los Servicios, con la que se ha trabajado en estrecha colaboración, dando lugar a la actual Carta de Servicios del IAPH formada por 50 servicios asociados a compromisos e indicadores de calidad. La publicación de la Carta, así como de un folleto divulgativo, supone que por primera vez los servicios del IAPH se ofrezcan bajo una oferta pública, con unos compromisos de calidad explícitos a la ciudadanía. Se hace así necesario el seguimiento continuo de los indicadores de gestión de cada servicio para medir el cumplimiento de los compromisos establecidos. El balance final se plasmará en el Informe de Evaluación 2005, que será el punto de partida para la actualización de la Carta y la mejora de la calidad de nuestros Servicios

    El Sistema Integrado de los Servicios del Instituto Andaluz del Patrimonio Histórico: la calidad orientada a los usuarios

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    El Sistema Integrado de los Servicios del IAPH es una herramienta fundamental para la transferencia a la sociedad del conocimiento especializado de la institución y una de sus líneas estratégicas. En las XI Jornadas Españolas de Documentación Científica (Fesabid 2009) se ha presentado en el marco de las Experiencias de Calidad orientadas a los usuarios, con el objetivo de satisfacer el mayor número de sus expectativas y necesidades concretas. La comunicación presentada se encuentra disponible en www.fesabid.org/zaragoza2009 Libro_Actas_Fesabid_2009.pd

    Effect of dietary conjugated linoleic acid in combination with monounsaturated fatty acids on the composition and quality traits of cooked loin

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    Publicado en: Food Chemistry 124 (2011) 518–526. https://doi.org/10.1016/j.foodchem.2010.06.063Tres niveles (0%, 1% y 2%) de un aceite de ácido linoleico conjugado (CLA) se combinaron con dos niveles de ácidos grasos monoinsaturados (MUFA) (bajo - 19% promedio y alto - 39% promedio) para la alimentación del cerdo ( n = 48, ocho animales por tratamiento). Se estudiaron los rasgos de composición y calidad (contenido de grasa, pérdida de cocción, oxidación de lípidos, perfil de ácidos grasos, perfil volátil y análisis sensorial) de lomo cocido, según se vieron afectados por la interacción CLA, MUFA y CLA × MUFA. CLA y CLA × MUFA no afectaron el contenido de grasa intramuscular, las pérdidas por cocción, la oxidación de los lípidos, el perfil volátil y los rasgos sensoriales de la carne cocida. Por lo tanto, el CLA podría complementarse con la dieta del cerdo sin detrimento de los rasgos de calidad medidos de la carne cocida, e independientemente del nivel de MUFA de las dietas de los cerdos. El CLA dietético aumentó el contenido de SFA y disminuyó el nivel de MUFA de la carne, y condujo a un enriquecimiento de CLA, independientemente del nivel de MUFA de las dietas de cerdo, pero el contenido de los isómeros de CLA de la carne fresca disminuyó después del proceso de cocción.Three levels (0%, 1% and 2%) of a conjugated linoleic acid oil (CLA) were combined with two levels of monounsaturated fatty acids (MUFA) (low – 19% average and high – 39% average) for pig feeding (n = 48, eight animals per treatment). The composition and quality traits (fat content, cooking losses, lipid oxidation, fatty acid profile, volatile profile and sensory analysis) of cooked loin, as affected by dietary CLA, MUFA, and CLA × MUFA interaction were studied. CLA and CLA × MUFA did not affect the intramuscular fat content, cooking losses, lipid oxidation, volatile profile and sensory traits of cooked meat. Therefore, CLA could be supplemented to the pig diet without detriment of the measured quality traits of cooked meat, and regardless of the MUFA level of pig diets. Dietary CLA increased the content of SFA and decreased the level of MUFA of meat, and led to a CLA enrichment, regardless the MUFA level of pig diets, but the content of CLA isomers of fresh meat decreased after the cooking process.Ministerio de Educación y Ciencia: Ayuda AGL 2003-0353

    Situación Actual de la Agrivoltaica en España, Europa y el Mundo - Oprotunidades y Desafíos

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    High-level overview of the status of agrivoltaics in Spain, Europe and the world, focusing particularly on current opportunities and challenges

    The diguanylate cyclase AdrA regulates flagellar biosynthesis in Pseudomonas fluorescens F113 through SadB

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    Flagellum mediated motility is an essential trait for rhizosphere colonization by pseudomonads. Flagella synthesis is a complex and energetically expensive process that is tightly regulated. In Pseudomonas fluorescens, the regulatory cascade starts with the master regulatory protein FleQ that is in turn regulated by environmental signals through the Gac/Rsm and SadB pathways, which converge in the sigma factor AlgU. AlgU is required for the expression of amrZ, encoding a FleQ repressor. AmrZ itself has been shown to modulate c-di-GMP levels through the control of many genes encoding enzymes implicated in c-di-GMP turnover. This cyclic nucleotide regulates flagellar function and besides, the master regulator of the flagellar synthesis signaling pathway, FleQ, has been shown to bind c-di-GMP. Here we show that AdrA, a diguanylate cyclase regulated by AmrZ participates in this signaling pathway. Epistasis analysis has shown that AdrA acts upstream of SadB, linking SadB with environmental signaling. We also show that SadB binds c-di-GMP with higher affinity than FleQ and propose that c-di-GMP produced by AdrA modulates flagella synthesis through SadBThis work was supported by funding from MINECO/FEDER EU Grant RTI2018 093991-BI00 to R.R. and M.M. C.M. was funded by a FPI fellowship from MINECO. EB-R was the recipient of fellowships from Fundación Tatiana Pérez de Guzmán el Bueno (Medioambiente 2016) and the FPU program from MECD (FPU16/05513). Short stays of R.R. and C.M. at John Innes Centre were funded by MECD (Salvador de Madariaga and FPU, respectively

    Amphiphilic core-cross-linked micelles functionalized with bis(4-methoxyphenyl)phenylphosphine as catalytic nanoreactors for biphasic hydroformylation

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    Core-cross-linked micelles (CCM) functionalized at the core with covalently linked bis(p-methoxyphenyl) phenylphosphine (BMOPPP) ligands have been synthesized by a three-step one-pot radical polymerization in emulsion, using the polymerization-induced self-assembly (PISA) strategy and reversible addition-fragmentation chain transfer (RAFT) as the controlling method. The CCM are obtained by chain extending in water poly(methacrylic acid-co-poly(ethylene oxide) methyl ether methacrylate) (P(MAA-co-PEOMA), degree of polymerization of 30, MAA/PEOMA units molar ratio of 50:50) synthesized in a first step by RAFT with a 95:5 M mixture of styrene and 4-[bis(p-methoxyphenyl)phosphino]styrene (BMOPPS) units. The resulting micelles exhibiting a core composed of P(S-co-BMOPPS) segments with a degree of polymerization of 300 are then crosslinked in a third step with a mixture of di(ethylene glycol) dimethacrylate (DEGDMA) and styrene. The resulting BMOPPP@CCM exhibit a narrow size distribution (PDI = 0.16) with an average diameter of 81 nm in water and swell in THF or by addition of toluene to the latex. The addition of [Rh(acac) (CO)2] to the toluene-swollen latex results in metal coordination to the phosphine ligands. 31P{1H} NMR spectroscopy shows that the Rh centers undergo rapid intraparticle phosphine ligand exchange. Application of these nanoreactors to the aqueous biphasic hydroformylation of 1-octene shows excellent activity and moderate catalyst leaching

    FOSS - Based Bibliometric System to Track the Evolution of Agrivoltaics Research - Preliminary Results and Roadmap

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    1. Introduction Agrivoltaics is an emerging field of critical importance to ensure an appropriate energy transition, since it addresses head-on the potential conflict in the use of agricultural land for renewable energy sources related applications. The awareness of the critical importance of agrivoltaics in the energy transition is gaining momentum worldwide. This momentum reflects in all aspects of agrivoltaics activities from commercial applications to technology demonstration projects, and to applied and basic research. The urgency to address the climate crisis makes it imperative to accelerate the pace of innovation and technological development. The time it takes from an innovative idea to go from a research concept to a technical product must be reduced. One good recipe to accelerate innovation is to accelerate the diffusion of ideas and to elicit international collaborations among researchers and innovators which are pursuing ideas which are closely related or complementary. To contribute to this, a bibliometric system is being developed, which long term goal is to continuously assist the international agrivoltaics research community in assessing the status of agrivoltaics research worldwide; understanding how the community itself is structured in research groups and communities of research groups; and understanding how these groups and communities of groups are related and are interacting among them. This bibliometric system is based on the use, adaptation, and development of Free Open Source Software (FOSS) and available open access resources. Its development is open to contributions from anyone interested. 2. Approach and system architecture The approach being used in the development of the bibliometric system follows a typical open source software development approach, in which a prototype of the system is rapidly deployed and then, based on the feedback from users and developers, it is improved or expanded in a continuous basis, through short development cycles. Instead of a monolithic application, the bibliometrics system is being built as an ecosystem of tools composed, as much as possible, of already available tools and components. The emphasis is on the integration of the tools to achieve specific functionalities and on the increased automatization of the overall system. The key components of the system are: (1) The data sources, (2) the database, (3) the data-adaptation tools, and (4) the data analyses tools. The set of bibliographical references is the critical data source. The representativeness of this set in relation to the evolution and status of agrivoltaics research is of paramount importance. The other data sources are ancillary sources used either to improve the information provided in a bibliographical reference or to add information related to it. The database is a standard relational database. Most of the data-adaptation tools are Python scripts, while the data analysis tools are based on different technologies. 3. Status, preliminary results and roadmap The status of the FOSS-based bibliometric system is as follows: The core set of bibliographical references was obtained using an approach useful to periodically update it. The core structure of the relational database established, and the database defined and implemented. Key data-adaptation tools to transfer the information from the bibliographical dataset, exported as a RIS file, to the relational database was developed and used to populate the database. Key available open source data-analysis tools identified and applied to analyze the data set. A series of Mathematica notebooks was developed to provide additional analyses of the dataset and as preliminary versions of the data-analysis tools to be developed in Python as fully open source tools. The core set of bibliographical references contains a total of 410 references, from 1982 to 2023, since some of the references it includes are scheduled to be part of journal volumes to be published next year. The set is a closed set of references in the sense that, for any article in the set, the references in that article to any other relevant agrivoltaics articles are to be found within the set itself, with very few exceptions, such as references to articles in Japanese or other exotic languages, references to urban rooftops, and references to low-tech grain driers. To build the closed set, the titles and abstracts of more than 7,000 documents were reviewed, following an iterative process consisting in exploring the references and citations of each document added to the set, identifying those that classify as agrivoltaics references and integrating them into the next iteration of the set. It took seven iterations to reach the closed set. In terms of references, the documents in the set contain a total of 15,351 references, associated to 8,641 unique documents. In terms of citations, the documents in the set have been cited 9,341 times so far, from a total of 3,919 documents. Many different bibliographical analyses have been carried out, such as: (a) Frequency analyses to understand the main terms and concepts considered in the published articles, to identify the most prolific agrivoltaics authors; or to determine distribution of number of authors per article; (b) networks analyses to identify relations between technical concepts; community of authors; and relations among community of authors; and (c) time domain analysis to understand the evolution of key indicators and the evolution of the research networks and communities. As an example, Fig. 1 shows the distribution of number of publications per article, as well as a high level view of the network of the communities of authors. In total 410 peer-reviewed agrivoltaics articles were identified. The analyses carried out on this set of articles, which will be presented in the full article, show that these articles were authored by 1,292 researchers, which are structured into 186 communities, ranging from 1 to 32 authors, with an average community size of 5 authors. The maximum number of articles per author is 15, with most authors (1,022) having published only one agrivoltaics article. These preliminary results show that agrivoltaics is clearly an emerging field of research, which is gaining momentum fast, and represents a huge opportunity to make a difference. The next steps will be to increase the automation of the developed FOSS-based bibliometric system, make its results available to the international research community via a specialized website, and establish the endeavor as a full-fledge open source project open to the contribution of anyone interested

    Intercomparison of spectroradiometers and Sun photometers for the determination of the aerosol optical depth during the VELETA-2002 field campaign

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    [ 1] In July 2002 the VELETA-2002 field campaign was held in Sierra Nevada ( Granada) in the south of Spain. The main objectives of this field campaign were the study of the influence of elevation and atmospheric aerosols on measured UV radiation. In the first stage of the field campaign, a common calibration and intercomparison between Licor-1800 spectroradiometers and Cimel-318 Sun photometers was performed in order to assess the quality of the measurements from the whole campaign. The intercomparison of the Licor spectroradiometers showed, for both direct and global irradiances, that when the comparisons were restricted to the visible part of the spectrum the deviations were within the instruments' nominal accuracies which allows us to rely on these instruments for measuring physical properties of aerosols at the different measurement stations. A simultaneous calibration on AOD data was performed for the Cimel-318 Sun photometers. When a common calibration and methodology was applied, the deviation was lowered to much less than 0.01 for AOD. At the same time an intercomparison has been made between the AOD values given by the spectroradiometers and the Sun photometers, with deviations obtained from 0.01 to 0.03 for the AOD in the visible range, depending on the channel. In the UVA range, the AOD uncertainty was estimated to be around 0.02 and 0.05 for Cimel and Licor respectively. In general the experimental differences were in agreement with this uncertainty estimation. In the UVB range the AOD measurements should not be used due to maximum instrumental uncertainties
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