217 research outputs found

    Integración académica del estudiante universitario internacional de la UA: la perspectiva del alumnado

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    La experiencia acumulada desde la coordinación de programas Erasmus y la docencia a alumnado universitario no nativo, en cursos de lengua general, en licenciaturas, grados y posgrados, así como en las cinco ediciones del Curso de español académico para alumnos extranjeros de la UA, nos ha permitido constatar ciertas necesidades, sobre las que faltan datos empíricos. Nos referimos a la falta de formación en esta modalidad académica de la lengua y a la conveniencia de crear un material de ayuda que mejore el aprovechamiento académico de su estancia. El presente póster presenta los resultados de la red Investigación en docencia por contenidos (español como segunda lengua) en el proceso de internacionalización de la UA, centrándose en la visión del alumnado extranjero. Los datos estadísticos proceden de encuestas realizadas a estudiantes de movilidad matriculados en asignaturas de la Facultad de Filosofía y Letras. A través de los 30 informantes que han colaborado, hemos determinado sus principales dificultades y necesidades en el momento de elegir y cursar dichas asignaturas. Los resultados finales nos indican, entre otros aspectos, la necesidad de una futura Guía académica para el alumnado extranjero, que contribuiría a su mayor orientación y rendimiento en nuestras áreas académicas

    Soluble ST2 levels and left ventricular structure and function in patients with metabolic syndrome

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    Background: A biomarker that is of great interest in relation to adverse cardiovascular events is soluble ST2 (sST2), a member of the interleukin family. Considering that metabolic syndrome (MetS) is accompanied by a proinflammatory state, we aimed to assess the relationship between sST2 and left ventricular (LV) structure and function in patients with MetS. Methods: A multicentric, cross-sectional study was conducted on180 MetS subjects with normal LV ejection fraction as determined by echocardiography. LV hypertrophy (LVH) was defined as an LV mass index greater than the gender-specific upper limit of normal as determined by echocardiography. LV diastolic dysfunction (DD) was assessed by pulse-wave and tissue Doppler imaging. sST2 was measured by using a quantitative monoclonal ELISA assay. Results: LV mass index (β=0.337, P<0 .001, linear regression) was independently associated with sST2 concentrations. Increased sST2 was associated with an increased likelihood of LVH [Exp (B)=2.20, P=0.048, logistic regression] and increased systolic blood pressure [Exp (B)=1.02, P=0.05, logistic regression]. Comparing mean sST2 concentrations (adjusted for age, body mass index, gender) between different LV remodeling patterns, we found the greatest sST2 level in the group with concentric hypertrophy. There were no differences in sST2 concentration between groups with and without LV DD. Conclusions: Increased sST2 concentration in patients with MetS was associated with a greater likelihood of exhibiting LVH. Our results suggest that inflammation could be one of the principal triggering mechanisms for LV remodeling in MetS

    Application of differential colorimetry to evaluate anthocyanin-flavonol-flavanol ternary copigmentation interactions in model solutions

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    The combined effect of anthocyanin−flavanol−flavonol ternary interactions on the colorimetric and chemical stability of malvidin-3-glucoside has been studied. Model solutions with fixed malvidin-3-glucoside/(+)-catechin ratio (MC) and variable quercetin-3-β-D-glucoside concentration (MC+Q) and solutions with fixed malvidin-3-glucoside/quercetin-3-β-Dglucoside ratio (MQ) and variable (+)-catechin concentration (MQ+C) were tested at levels closer to those existing in wines. Color variations during storage were evaluated by differential colorimetry. Changes in the anthocyanin concentration were monitored by HPLC-DAD. CIELAB color-difference formulas were demonstrated to be of practical interest to assess the stronger and more stable interaction of quercetin-3-β-D-glucoside with MC binary mixture than (+)-catechin with MQ mixture. The results imply that MC+Q ternary solutions kept their intensity and bluish tonalities for a longer time in comparison to MQ+C solutions. The stability of malvidin-3-glucoside improves when the concentration of quercetin-3-β-D-glucoside increases in MC+Q mixtures, whereas the addition of (+)-catechin in MQ+C mixtures resulted in an opposite effec

    Methane dry reforming over Ni supported on pine sawdust activated carbon: Effects of support surface properties and metal loading

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    The influence of metal loading and support surface functional groups (SFG) on methane dry reforming (MDR) over Ni catalysts supported on pine-sawdust derived activated carbon were studied. Using pine sawdust as the catalyst support precursor, the smallest variety and lowest concentration of SFG led to best Ni dispersion and highest catalytic activity, which increased with Ni loading up to 3 Ni atoms nm-2. At higher Ni loading, the formation of large metal aggregates was observed, consistent with a lower "apparen" surface area and a decrease in catalytic activity. The H2/CO ratio rose with increasing reaction temperature, indicating that increasingly important side reactions were taking place in addition to MDR.Financial support was provided by CONICYT PFB-27 project (UDT-University of Concepción) and FONDECYT 1100884 grant

    Cómo tributan por IS e IRPF las instituciones de Inversión Colectiva

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    Grado en Administración y Dirección de Empresas y Grado en DerechoLas Instituciones de Inversión Colectiva son, a día de hoy, uno de los principales instrumentos usados por pequeños y grandes inversores, para la inversión de su ahorro. El presente trabajo tiene como objetivo analizar el régimen fiscal favorable al cual están sujetas este tipo de instituciones; y la explicación de la utilización del mismo. Así como estudiara cómo tributan por el Impuesto de Sociedades y por el Impuesto sobre la Renta de las Personas Físicas, este tipo de instituciones y sus socios o partícipes. Adicionalmente, se hará un análisis del régimen de diferimiento del cual gozan los traspasos de inversión entre este tipo de instituciones; y la tributación a la cual están sujetos los socios o partícipes de las instituciones constituidas en paraísos fiscales. Finalmente, se analizará la controversia mediática que ocurre a día de hoy entorno a las SICAV.Collective Investment Institutions are, today, one of the main instruments used by small and large investors to invest their savings. The present work aims to analyze the favorable tax regime to which these types of institutions are subject; and the explanation of its use. It also analyzes how these institutions and their partners or participants pay corporate and personal income tax. Additionally, an analysis will be made of the deferral regime enjoyed by investment transfers between this type of institution; and the taxation to which the partners or participants of institutions constituted in tax havens are subject. Finally, the media controversy surrounding SICAVs will be analyzed

    Análisis de la estrategia de marketing mix de la Bodega Javier Sanz Viticultor, D.O. Rueda

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    Análisis de la situación actual del sector viticultor en España y en la D.O. Rueda, además de ser un análisis de la estrategia de marketing mix que tiene la Bodega de Javier Sanz Viticultor S.L., en el que se pasa por la historia del pueblo de La Seca, cuna del verdejo y se termina con una pequeña campaña de publicidad.Grado en Publicidad y Relaciones Pública

    La responsabilidad social corporativa en la industria de la moda

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    Grado en Administración y Dirección de Empresas y Grado en DerechoLa Responsabilidad Social Corporativa es concepto que a día de hoy parece fundamental dentro del mundo empresarial, las empresas deben tratar de reducir sus impactos en el medioambiente y el ecosistema; además de ayudar al desarrollo de las comunidades de su entorno. Tanto organizaciones como consumidores, demandan a las empresas que consumen, que propongan y lleven a cabo iniciativas de responsabilidad social; y se comprometan con ella. El presente trabajo tiene como objetivo analizar los tres ámbitos de la RSC dentro de la industria de la moda; enfocado en el plano medioambiental y social. Además, de analizar el proceso de transformación en el cual se está viendo envuelta esta industria y cuáles son las nuevas formas de negocio que están comenzando a surgir.Corporate Social Responsibility is a concept that nowadays seems to be fundamental within the business world; companies must try to reduce their impact on the environment and the ecosystem; besides helping the development of the communities around them. Both organizations and consumers, demand to the companies that they consume, to propose and carry out responsibility initiatives; and commit themselves to it. This paper aims to analyze the three areas of Corporate Social Responsibility within the fashion industry; focusing on environmental and social issues. In addition, to analyze the transformation process in which this industry is involved and what are the new forms of business that are beginning to emerge

    Investigación en docencia por contenidos (español como segunda lengua) en el proceso de internacionalización de la UA

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    La creciente internacionalización de nuestra universidad, junto con la experiencia acumulada desde la coordinación de programas Erasmus y la docencia a alumnado universitario no nativo, en diversas titulaciones, así como en las cinco ediciones del Curso de español académico para alumnos extranjeros, nos ha permitido constatar la relevancia de la integración académica de los estudiantes internacionales. El objetivo de la red es presentar la percepción del profesorado acerca de su presencia en las clases (cómo ha afectado a su docencia), así como la situación de los propios estudiantes, para averiguar cuáles son los retos a los que ambos colectivos se enfrentan. Nuestros informantes han sido 23 profesores del Dpto. de Filología Española con alumnado internacional y 30 estudiantes de movilidad matriculados en asignaturas ofertadas por dicho departamento, de quienes hemos recabado información a través de cuestionarios que nos han permitido obtener datos estadísticos. Los resultados finales nos indican, entre otros aspectos, la importancia del requisito lingüístico y del conocimiento de las rutinas académicas por parte del alumnado, así como la conveniencia de pautas sobre su evaluación para el profesorado. Se percibe a su vez la necesidad de una futura Guía académica para el alumnado extranjero, que contribuiría a un mejor rendimiento académico de su estancia

    Physico-Chemical and Chromatic Characterization of Malvidin 3-Glucoside-vinylcatechol and Malvidin 3-Glucoside-vinylguaiacol Wine Pigments

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    [EN] The physicochemical and chromatic features of malvidin 3-glucoside-vinylcatechol (PA1) and malvidin 3-glucoside-vinylguaiacol (PA2) adducts were investigated. Important differences between both pigments were observed. In the investigated pH range (2.0−4.5), our results suggest that PA1 could be considered as a noncovalent dimer of two pyranoflavylium ions (AH)2 which undergo a hydration reaction in two successive steps, with no proton transfer. In contrast, only proton transfer equilibrium between the pyranoflavylium ion and the quinonoid bases was observed for PA2. The hydration and acidity thermodynamic constants of both pyranoanathocyanins were determined by UV−vis spectroscopy. Pigment PA1 was shown to be less sensitive to bisulfite addition than to water addition, and PA2 seems to be largely insensitive to both water and bisulfite additions. The binding constants for the interaction between the pigments and (+)-catechin in aqueous solution and the changes in the CIELAB parameters that it provoked were also determined. The huge increase in the absorption of the pyranoflavylium ion of PA2 when it binds catechin has no equivalent for anthocyanins and nicely outlines the potential of pyranoanthocyanins in the expression of natural colors

    Extractability of Low Molecular Mass Flavanols and Flavonols from Red Grape Skins. Relationship to Cell Wall Composition at Different Ripeness Stages

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    [EN] Flavonol and flavan-3-ol extractabilities from red grape skins were evaluated in Tempranillo grapes harvested at different ripeness stages and with different soluble solid contents within each stage. Flavan-3-ol extractability is related to ripeness stage and also to cell wall composition, mainly to arabinogalactans (AG), mannans, rhamnogalacturonans-I (RG-I), homogalacturonans (HG), xyloglucans (XG), and total polysaccharides content, which are negatively correlated to flavan-3-ol extractability, whereas soluble solid content did not exert any influence on their extraction. Moreover, procyanidin extraction is more strongly related to cell wall composition than prodelphinidin extraction. Flavonol extractability was not influenced by insoluble material contents; although some cell wall components presented a relationship with flavonol extractability, the presence of AG and mannans would decrease total flavonol extractability, whereas protein is positively related to total and major flavonol compounds (i.e., quercetin and myricetin derivatives). The different behaviors observed between those two groups of polyphenol compounds could be due to different tissue and cellular location
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