603 research outputs found

    Castilian loyalty in the War of Succession. Social mobilization and representation of power in a society at war

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    La lealtad castellana durante la Guerra de Sucesión fue uno de los topoi más reiterados en la abundante publicística borbónica. Lo que en este texto se analiza es el modo cómo se generó esa lealtad castellana: por un lado, mediante una creciente coerción ejercida por los diferentes delegados del monarca, especialmente militares y élites locales; y, por otro, a través de una serie de mecanismos de persuasión social - panfletos, periódicos, sermones y toda clase de rituales cívicos- que permitieron incorporar a la causa del nieto de Luis XIV a una buena parte de la población castellana. La combinación de las diferentes máscaras del poder logró una elevada movilización social en la guerra, además de construir un nuevo orden político que otorgaba al monarca mayor influencia en el conjunto de Castilla.The Castilian loyalty in the Spanish Succession War was one of the more important topoi in the plentiful Bourbon propaganda. In this article we analysed how was produced this Castilian loyalty: in the one hand, by an increasing coercion which king's agents exercised, principally militaries and local elites; and the other hand, by a joint of social persuasion mechanisms -pamphlets, newspapers, sermons and different civic rituals- that allowed to most Castilian population was incorporated to Louis XIV's grandson support. The combination of these power masks obtained a high social mobilization in the war, in addition to build in the Castile Crown a new political order with more authority to the Spanish monarch.Este trabajo se enmarca dentro del proyecto titulado "El primer reformismo borbónico en el espacio mediterráneo: construcción de fidelidades dinásticas, circulación de prácticas políticas e implantación de modelos administrativos (1700-1759)", financiado por el Ministerio de Educación y Ciencia (HUM2005-06310)

    Fast analysis of relevant contaminants mixture in commercial shellfish

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    One of the major challenges currently faced is to develop systematic ways of addressing chemical mixtures in environmental assessment. With this purpose, a simple, rapid, and sensitive method for the detection and quantification of a mixture of relevant contaminants in molluscs has been developed. The method is based on QuEChERS (Quick, Easy, Cheap, Effective, Rugged and Safe) and Ultra-High Performance Liquid Chromatography-High Resolution Mass Spectrometry (UHPLC-HRMS). It includes a mixture of 23 compounds formed by pesticides, endocrine disruptors and pharmaceuticals (metolachlor, simazine, desethylatrazine, atrazine, thiabendazole, diazinon, malathion, bentazone, MCPA, propanil, acetamiprid, imidacloprid, caffeine, bisphenol A, triclosan, triclocarban, methylparaben, ethylparaben, propylparaben, 1H-benzotriazole, sulfamethoxazole, venlafaxine and carbamazepine). The method was developed and validated in 4 different types of shellfish of high commercial interest such as mussel (Mytilus galloprovincialis), oyster (Crassostrea gigas), cockle (Cerastoderma edule) and razor shell (Solen marginatus). The mean percentage of recoveries obtained for all the compounds in each mollusc type (intra-specie) ranged from 96% to 107% showing the good performance of the method developed. The relative standard deviation was under 10% for the intra-day and 17% inter-day analyses. Method detection limits and method quantification limits were below 10 ng/g dry weight for all the species and compounds targeted. Finally, the method was applied to aquaculture samples, oysters and cockles, from Ebro Delta (Spain), after some episodes of mortality occurred in 2017. A high level of bisphenol A was detected in C. edule which may explain the mortality suffered by this organism. C. gigas presented low levels of metolachlor, bentazone, acetamiprid, and methylparaben.info:eu-repo/semantics/acceptedVersio

    Effects of discontinued endurance methods on VO2max in judokas

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    Este estudio tuvo como objetivo investigar el efecto de dos diferentes planes de entrenamiento de resistencia basados en la metodología discontinua (intermitente e interválica), sobre el VO2Máx de atletas Antioqueños de Judo de rendimiento. Para ello, 21 Judokas de la Selección Antioqueña pertenecientes a la categoría Senior (20,43±4,18 años), fueron distribuidos aleatoriamente en tres grupos, dos grupos experimentales y un grupo control. Ambos grupos experimentales entrenaron la resistencia durante 4 semanas con 4 estímulos por semana, uno de los grupos experimentales basó su entrenamiento en el método interválico y el otro en el intermitente. Por su parte, el grupo control no realizó ningún tipo de entrenamiento de la resistencia. No se hallaron diferencias significativas entre pretest y postest de ninguno de los grupos ni experimentales ni el de grupo control (p>0,05). Se concluyó que el entrenamiento de la resistencia basado en métodos discontinuos no produjo diferencias significativas en el VO2Máx

    Design of a Game Mechanic to Promote Collaborative Constructions in Virtual Environments

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    La característica de ubicuidad que internet dispone al servicio de las herramientas tecnológicas, ha sido aprovechada en innumerables áreas de aplicación. Dinámicas sociales de competencia, cooperación y colaboración emergen naturalmente en nuevos entornos virtuales donde los canales de comunicación abundan. En el ámbito educativo, saber aprovechar estas dinámicas para potenciar los procesos de aprendizaje, se convierte en un reto que requiere del desarrollo de nuevas estrategias que integren las herramientas tecnológicas con las herramientas propias del área. En este trabajo se presenta el diseño de una propuesta para la abstracción y representación de objetivos y su consecución a través de una mecánica de juego colaborativa que puede ser implementada en entornos virtuales. Algunas consideraciones técnicas son abordadas desde un punto de vista general, así como un esquema preliminar de su implementación.The ubiquitous feature that internet dispose to the service of the technological tools, has been exploited in innumerable areas of application. Social dynamics of competition, cooperation and collaboration naturally emerge in new virtual environments where communication channels abound. In the educational field, knowing how to take advantage of these dynamics to enhance learning processes, becomes a challenge that requires the development of new strategies that integrate technological tools with the tools of the area. This paper presents the design of a proposal for the abstraction and representation of objectives and their achievement through a collaborative game mechanic that can be implemented in virtual environments. Some technical considerations are approached from a general point of view, as well as a preliminary scheme of its implementation

    Comparative study of PCR-sexing procedures using bovine embryos fertilized with sex-sorted spermatozoa

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    Sex determination in bovine embryos is a useful tool in reproductive biotechnology. This work compares two techniques of embryo sexing by polymerase chain reaction (PCR. Embryos were produced in vitro with sex-sorted sperm and two techniques of DNA lysis were tested (proteinase K versus heat shock). Subsequently, halves of each lysed sample was amplified both by amelogenin and BRY4a/SAT1 primers. Male embryos treated by both digestion methods and amplified by BRY4a/SAT1 gave higher rates of false negatives. Amelogenin amplification failed with embryos previously digested by proteinase K. In contrast, the lysis method allowed obtaining the best accuracy in terms of sex verification when using amelogenin amplification

    A scenario of planet erosion by coronal radiation

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    Context: According to theory, high-energy emission from the coronae of cool stars can severely erode the atmospheres of orbiting planets. No observational tests of the long term effects of erosion have yet been made. Aims: To analyze the current distribution of planetary mass with X-ray irradiation of the atmospheres in order to make an observational assessment of the effects of erosion by coronal radiation. Methods: We study a large sample of planet-hosting stars with XMM-Newton, Chandra and ROSAT; make a careful identification of X-ray counterparts; and fit their spectra to make accurately measurements of the stellar X-ray flux. Results: The distribution of the planetary masses with X-ray flux suggests that erosion has taken place: most surviving massive planets, (M_p sin i >1.5 M_J), have been exposed to lower accumulated irradiation. Heavy erosion during the initial stages of stellar evolution is followed by a phase of much weaker erosion. A line dividing these two phases could be present, showing a strong dependence on planet mass. Although a larger sample will be required to establish a well-defined erosion line, the distribution found is very suggestive. Conclusions: The distribution of planetary mass with X-ray flux is consistent with a scenario in which planet atmospheres have suffered the effects of erosion by coronal X-ray and EUV emission. The erosion line is an observational constraint to models of atmospheric erosion.Comment: A&A 511, L8 (2010). 4 pages, 3 figures, 1 online table (included). Language edited; corrected a wrong unit conversion (g/s -> M_J/Gyr); corrected values in column 12 of Table 1 (slightly underestimated in first version), and Figure 2 updated accordingl

    Is the optical model valid for the scattering of exotic nuclei?

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    The optical model, and its applications to elastic, inelastic and transfer reactions is reviewed. The applicability of the optical model to the collisions of exotic nuclei is discussed. The sensitivity of recent experimental data of elastic scattering of 6He on 208Pb to the characteristics of the optical potential is investigated.Comisión Interministerial de Ciencia y Tecnología (CICYT). España FPA2002-04181-C04-02, FPA2002-04181-C04-04, FPA2003-0595

    Vacuum Energy and Renormalization on the Edge

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    The vacuum dependence on boundary conditions in quantum field theories is analysed from a very general viewpoint. From this perspective the renormalization prescriptions not only imply the renormalization of the couplings of the theory in the bulk but also the appearance of a flow in the space of boundary conditions. For regular boundaries this flow has a large variety of fixed points and no cyclic orbit. The family of fixed points includes Neumann and Dirichlet boundary conditions. In one-dimensional field theories pseudoperiodic and quasiperiodic boundary conditions are also RG fixed points. Under these conditions massless bosonic free field theories are conformally invariant. Among all fixed points only Neumann boundary conditions are infrared stable fixed points. All other conformal invariant boundary conditions become unstable under some relevant perturbations. In finite volumes we analyse the dependence of the vacuum energy along the trajectories of the renormalization group flow providing an interesting framework for dark energy evolution. On the contrary, the renormalization group flow on the boundary does not affect the leading behaviour of the entanglement entropy of the vacuum in one-dimensional conformally invariant bosonic theories.Comment: 10 pages, 1 eps figur

    The ATLAS inner detector trigger performance in pp collisions at 13TeV during LHC Run 2

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    Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, los autores pertenecientes a la UAM y el nombre del grupo de colaboración, si lo hubiereThe designand performance of the inner detector trigger for the high level trigger of the ATLAS experiment at the Large Hadron Collider during the 2016–2018 data taking period is discussed. In 2016, 2017, and 2018 the ATLAS detector recorded35.6fb−1,46.9fb−1,and60.6fb−1 respectively of proton–proton collision data at a centre-of-mass energy of 13TeV. In order to deal with the very high interaction multiplicities per bunch crossing expected with the 13TeV collisions the inner detector trigger was redesigned during the long shutdown of the Large Hadron Collider from 2013 until 2015. An overview of these developments is provided and the performance of the tracking in the trigger for the muon, electron, tau and b-jet signatures is discussed. The high performance of the inner detector trigger with these extreme interaction multiplicities demonstrate show the inner detector tracking continues to lie at the heart of the trigger performance and is essential in enabling the ATLAS physics programm

    Search for squarks and gluinos in final states with same-sign leptons and jets using 139 fb −1 of data collected with the ATLAS detector

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    Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, los autores pertenecientes a la UAM y el nombre del grupo de colaboración, si lo hubiereA search for supersymmetric partners of gluons and quarks is presented, involving signatures with jets and either two isolated leptons (electrons or muons) with the same electric charge, or at least three isolated leptons. A data sample of proton-proton collisions at √ s = 13 TeV recorded with the ATLAS detector at the Large Hadron Collider between 2015 and 2018, corresponding to a total integrated luminosity of 139 fb−1 , is used for the search. No significant excess over the Standard Model expectation is observed. The results are interpreted in simplified supersymmetric models featuring both R-parity conservation and R-parity violation, raising the exclusion limits beyond those of previous ATLAS searches to 1600 GeV for gluino masses and 750 GeV for bottom and top squark masses in these scenario
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