Estimating a pressure dependent thermal conductivity coefficient with applications in food technology

In this paper we introduce a method to estimate a pressure dependent thermal conductivity coefficient arising in a heat diffusion model with applications in food technology. To address the known smoothing effect of the direct problem, we model the uncertainty of the conductivity coefficient as a hierarchical Gaussian Markov random field (GMRF) restricted to uniqueness conditions for the solution of the inverse problem established in Fraguela et al. Furthermore, we propose a Single Variable Exchange Metropolis-Hastings algorithm to sample the corresponding conditional probability distribution of the conductivity coefficient given observations of the temperature. Sensitivity analysis of the direct problem suggests that large integration times are necessary to identify the thermal conductivity coefficient. Numerical evidence indicates that a signal to noise ratio of roughly 1000 suffices to reliably retrieve the thermal conductivity coefficient

El carácter de la especialización olivarera en el sur de España (1750-1930). Ecología, campesinado e historia

Olive tree represents today the major tree concentration in Europe. Its great expansion started at 19th Century caused by liberal agrarian reforms and, traditionally, has been associated with agrarian modernization in Mediterranean basin due to the growing integration of its production in domestic and foreign markets. This paper seeks to review the causes and the origins its expansion introducing new methods derived form environmental history and social history. We study local case studies which historical sources allow us to profound in this subject with more detail than at aggregate scale, starting at 1750 (when olive land was scarce) and finishing at 1930 (once consummated the firs great expansion known as “golden age”). The main findings show the causes of the weak specialization before 19th Century; the multifunctional character of traditional olive production; how its expansion was also determined by ecological particularities of this crop and by its function on substitute deficit products like woodfire or animal feed; and, finally, how small farming was behind its expansion using olive orchards like a peasant productive strategy

«Cuántos siglos de aceituna». El carácter de la expansión olivarera en el sur de España (1750-1900).

El olivar andaluz representa hoy en día la mayor concentración arbórea de toda Europa. Su gran expansión se inició en el siglo XIX al socaire de las reformas agrarias liberales y tradicionalmente se ha asociado con la modernización agraria en el Mediterráneo en la medida en la que su producción se integró en los mercados nacionales y exteriores. Este trabajo propone una revisión de las causas y los orígenes de su expansión introduciendo nuevos métodos de estudio propios de la historia ambiental y la historia social. Utilizaremos casos de estudio locales cuyas fuentes nos permiten profundizar en esta cuestión con más detalle que a escala agregada, empezando en 1750 (cuando la superficie de olivar era escasa) y terminando en 1930 (una vez consumada la primera gran expansión conocida como «edad de oro»). Los principales resultados señalan las causas de la débil especialización anterior al XIX; el carácter multifuncional de la producción olivarera tradicional; que su expansión también estuvo determinada por las particularidades ecológicas de este cultivo y por la función que cumplió para sustituir productos deficitarios como la leña o el forraje; y, finalmente, que la pequeña propiedad estuvo detrás de su expansión haciendo de su aprovechamiento una estrategia productiva campesina.Andalusian olive plantations currently represent the greatest concentration of trees in Europe. Large‐scale expansion began in the 19th century thanks to liberal agrarian reforms and is traditionally associated with agrarian modernisation in the Mediterranean basin, due to its increasing integration into domestic and foreign markets. In this paper, new methods derived from environmental and social history will be introduced to review the causes and origins of this expansion. The use of local case studies from 1750 (when olive plantations were scarce) to 1930 (the end of the ‘golden age’, or first great expansion period) will make it possible to examine the issues in greater depth and detail than an aggregate study. Main findings include the causes of weak specialisation prior to the 19th century; the multifunctionality of traditional olive production; how expansion was also determined by the ecological particularities of this crop and its use as a substitute for scarce products such as firewood or animal feed; and how expansion was driven by small‐scale farming as a productive strategy for the peasantry

El carácter de la especialización olivarera en el sur de España (1750-1930). Ecología, campesinado e historia

Olive tree represents today the major tree concentration in Europe. Its great expansion started at 19th Century caused by liberal agrarian reforms and, traditionally, has been associated with agrarian modernization in Mediterranean basin due to the growing integration of its production in domestic and foreign markets. This paper seeks to review the causes and the origins its expansion introducing new methods derived form environmental history and social history. We study local case studies which historical sources allow us to profound in this subject with more detail than at aggregate scale, starting at 1750 (when olive land was scarce) and finishing at 1930 (once consummated the firs great expansion known as “golden age”). The main findings show the causes of the weak specialization before 19th Century; the multifunctional character of traditional olive production; how its expansion was also determined by ecological particularities of this crop and by its function on substitute deficit products like woodfire or animal feed; and, finally, how small farming was behind its expansion using olive orchards like a peasant productive strategy.history of the olive tree, environmental history, agricultural history, agrarian specialization, peasantry

Desarrollo y manufactura de proteínas para nichos de mercado no ocupado del sector farmaceútico y veterinario

Comunicaciones a congreso

La influencia/impacto de las tecnologías de la Web Semántica en las Redes Sociales

The paper is based on a literature review of Semantic Web technologies and evalua- tion of how these technologies can be applied in the Social Media domain, whose purpose is to underline and to understand the way how Semantic Web technologies can influence and improve Social Media, and be relevant to effective searches (for example, for companies and their human resources departments). The Semantic Web technologies allow data collecting about a certain subject from the entire Internet, and Social Media allows people to share information about them, to express their opinion and to influence others. Therefore, participation and collaboration for the selection of useful infor- mation from the Web is sought. But we found limitations for success in the high cost of apps that can serve as connecting points for these social networks (Facebook, LinkedIn, Google+, Twitter, etc.) and in the privacy of the shared content on these social networksEl consiguiente artículo se basa en un análisis literario de las tecnologías y evaluación de la Web Semántica sobre cómo estas se pueden aplicar en el campo de las Redes Sociales, cuyo fin es enfatizar y entender cómo estas tecnologías de la Web Semántica pueden influir y mejorar las Redes sociales, y ser relevantes para búsquedas efectivas. Por ejemplo, en búsquedas para empresas y sus departamentos de recursos humanos. Dichas tecnologías permiten reunir información sobre un tema concreto de todo Internet, y las Redes Sociales consienten a las personas compartir información sobre ellos mismos, para expresar su opinión y así influir en otras personas. Por ello, se busca una participación y colaboración a la hora de seleccionar información útil en la web. Aunque, hemos encontrado limitaciones del éxito en aplicaciones de alto coste, que pueden servir como puntos de unión para estas redes sociales (Facebook, LinkedIn, Google+, Twitter, ect.), y en la privacidad del contenido compartido en esas mismas redes

La importancia de las TIC por parte de los alumnos como competencia para su futuro desempeño profesional: el caso de la Facultad de Ciencias Empresariales y Turismo de la Universidad de Huelva

To date, the knowledge and use of ICT (Information and Communication Technologies) has become an almost essential requirement when someone wants to find employment in our society. For this reason, this study aims to analyze the importance that students of the Faculty of Business Studies and Tourism of the University of Huelva (Spain) give to the acquisition of ICT skills for their future professional performance and the domain they have over them (achieved throughout their years of learning). This research is developed through a questionnaire completed by 90 students of the Faculty and concludes that in general they give these ICT skills the importance that they deserve and that their domain goes in parallel (except for some skills that show formative need), even being able to observe that in the majority of cases the dominion of these skills is tied to the importance that they give them.A día de hoy, el conocimiento y uso de las TIC (Tecnologías de la Información y la Comunicación) se ha convertido en un requisito casi imprescindible a la hora de encontrar empleo en nuestra sociedad. Por este motivo, este estudio tiene como objetivo analizar la importancia que los alumnos de la Facultad de Ciencias Empresariales y Turismo de la Universidad de Huelva (España) dan a la adquisición de competencias TIC para su futuro desempeño profesional y el dominio que tienen sobre estas (alcanzado a lo largo de sus años de aprendizaje). Esta investigación se desarrolla a través de un cuestionario realizado a 90 estudiantes de dicha Facultad y concluye que en líneas generales estos dan la importancia que se merecen a estas competencias TIC y que su dominio va en paralelo (exceptuando alguna competencia que muestra necesidad formativa), incluso pudiéndose decir que en la mayoría de las casos el dominio de estas competencias va vinculado a la importancia que ellos les dan