1,253 research outputs found

    Recovery and musealization of war trenches

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    [EN] At a time of incresing popularity of the war heritage of the province of Teruel, the coordination between different territorial administrations and the establishment of common guidelines is more necessary than ever to lead interventions in this type of sites. The work carried out in the positions of Santa Bárbara and Loma de Casares in Celadas (Teruel) are an example of how the authors understand that the conservation and enhancement of the vestiges of the Spanish Civil War should be approached, in which difficulties such as access to the position, great extension, poor workmanship and an advanced state of abandonment and deterioration converge. This work also illustrates the integral and interdisciplinary character recommended in this type of projects, which addresses the historical documentation, the interpretation of the position and the delimitation of the intervention areas, the work of archaeological excavation, the adequacy of accesses, and even signaling, promotion and tourist diffusion.[ES] En un momento en el que el patrimonio bélico de la provincia de Teruel goza de una popularidad creciente, se hace más necesario que nunca la coordinación entre las distintas administraciones territoriales y el establecimiento de unas directrices comunes que guíen las intervenciones en este tipo de enclaves. Los trabajos realizados en las posiciones de Santa Bárbara y Loma de Casares en Celadas (Teruel) son un ejemplo de cómo los autores entienden que deben abordarse la conservación y puesta en valor de los vestigios de la guerra civil española, en los que confluyen dificultades como el acceso al enclave, su gran extensión, una pobre factura y un avanzado estado de abandono y deterioro. En este trabajo también se ilustra el carácter integral e interdisciplinar que se recomienda en este tipo de proyectos, y que aborda desde la documentación histórica, la interpretación de la posición y la delimitación de las zonas de intervención, hasta las labores de excavación arqueológica, adecuación de accesos, señalización, promoción y difusión turística.García Enguita, A.; Ibáñez González, J.; Sáez Abad, R.; Villalba Alegre, I. (2023). Recuperación y musealización de trincheras de guerra. Loggia, Arquitectura & Restauración. (36):92-105. https://doi.org/10.4995/loggia.2023.19983921053

    Sal k 5, a member of the widespread Ole e 1-like protein family, is a new allergen of Russian thistle (Salsola kali) pollen.

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    Salsola kali is an Amaranthaceae weed with important repercussions for pollinosis in temperate areas. Ole e 1-like members are relevant allergens in pollen from different species. We aimed to characterize and produce as recombinant allergen S. kali Ole e 1-like protein. METHODS:The natural allergen was purified at homogeneity after three chromatographic steps. Specific cDNA was sequenced and expressed in Pichia pastoris yeast. Structural relationships of natural and recombinant forms were carried out by 2D electrophoresis and spectroscopic analyses. Its immunological relevance was analyzed by ELISA and immunoblotting using an IgG antiserum and monoclonal antibodies specific to Ole e 1, as well as sera from 57 allergic patients recruited from two Spanish regions where this pollinosis is frequent. RESULTS:The purified allergen, Sal k 5, is an acidic glycoprotein of 151 amino acid residues and 17,628 Da of molecular mass. Its amino acid sequence exhibits 68 and 32% identity with the allergens of Che a 1 and Ole e 1, respectively. The recombinant protein was correctly processed and its structural and immunologic equivalence to the natural form was proven. A sensitization frequency between 30 and 40% was observed in pollinic patients from the center and east coast of Spain. CONCLUSIONS:Sal k 5 is a member of the Ole e 1-like protein family which can be considered an important allergen from S. kali. Its inclusion in diagnosis protocols would allow the accurate defining of patients allergic to this pollen

    Characterization of Aerodynamic Forces on Wings in Plunge Maneuvers

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    We present experiments and simulations of plunging maneuvers of large amplitude, for velocity ratios of G=1 and 2, defined as the ratio between the peak plunge velocity and the freestream velocity. We explore the effect of the airfoil shape by considering a NACA 0012 wing and a flat plate. The experiments are performed with wings with aspect ratios of 4 and 4.86, whereas the simulations are performed using a model of an infinite-aspect-ratio wing. We report the time evolution of the force coefficients and flow visualizations. A good qualitative agreement is found between experiments and simulations, with small discrepancies in the maximum and minimum lift coefficients observed during the maneuvers and somewhat larger discrepancies during the postmaneuver phase. It is found that the airfoil shape has a small effect on the lift coefficient but a somewhat larger effect on the drag coefficient. We also perform a force decomposition analysis to relate vortical structures to the force on the wings, providing a quantitative measurement of the effect of the leading-edge vortex and trailing-edge vortex on the peak aerodynamic forces.This work was partially supported by the State Research Agency of Spain (AEI) under grant DPI2016-76151-C2-2-R, including funding from the European Regional Development Fund and the U.S. Air Force Office of Scientific Research under grant FA9550-16-1-0508. The computations were partially performed at the supercomputer Picasso from the Red Española de Supercomputación in activity FI-2019-1-0030.Publicad

    Editorial

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    Las actividades dirigidas en centros deportivos y su valor como elemento de idelización

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    The aim of the study was to determine the demand of group exercise training (GET) by members of Spanish sports centers, and determine if GET could be considered as a retention element. A total of 15,778 members from 97 sports centers in cities with more than 100,000 inhabitants were surveyed through an ad hoc questionnaire. The results show a higher demand for GET among the group of women (77.5%) than men (45.9%), and between ages 25 and 64 exceeding 60%. The data obtained confirm that GET work as a loyalty element among the group of people who attend GET on a regular basis, presenting a greater membership tenure, and a greater volume of attendance days and weekly hours.El objetivo de este estudio fue determinar la demanda de actividades dirigidas (AADD) por parte de las personas abonadas a centros deportivos españoles y determinar si las AADD se presentan como un elemento de fidelización de la instalación. Un total de 15.778 clientes de 97 centros deportivos de ciudades de más de 100.000 habitantes fueron encuestados a través de un cuestionario diseñado ad hoc. Lo resultados muestran una mayor demanda de AADD entre el colectivo de mujeres (77,5%) frente a los hombres (45,9%), y entre las franjas de edad comprendidas entre los 25 y 64 años superando el 60%. Los datos obtenidos confirman que las AADD funcionan como un elemento de fidelización entre el colectivo de personas que hacen AADD de manera regular, presentandouna mayor permanencia, y un mayor volumen de días y de horas semanales de asistencia

    Evolución de las licencias federativas de pádel en Andalucía (2009-2016)

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    The last years of sport in Spain show a high growth in the practice of paddle (Gómez-Chacón, Pascua-Barón and Fernández-Martínez, 2017). The paddle, is the sport of racket more practiced weekly by the Spanish population (Superior Council of Sports, 2015). Likewise, and following the line of other authors, paddle is the sport that has most developed in the last 23 years with a growth of 1,947.41% (López, 2017). The objective of this study is to know the evolution of the federative paddle licenses in Andalusia in absolute category during the years 2009-2016 in order to certify that all the data found coincide with what various authors and public bodies have affirmed. The database of the Andalusian federation of Paddle was consulted. All the data extracted in the consulted bibliography do not do more than indicate that the paddle is one of the most emergent sports and with greater growth of the XXI century.Los últimos años del deporte en España muestran un alto crecimiento en la práctica del pádel (Gómez-Chacón, Pascua-Barón y Fernández–Martínez, 2017). El pádel, es el deporte de raqueta más practicado semanalmente por la población Española(Consejo Superior de Deportes, 2015).Asimismo, y siguiendo la línea de otros autores, el pádel, es el deporte que más se ha desarrollado en los últimos 23 años con un crecimiento del 1.947,41% (López, 2017).El objetivo de este estudio es conocer la evolución de las licencias federativas de pádel en Andalucía durante los años 2009-2016, para poder certificar que todos los datos encontrados coinciden con lo que han afirmado diversos autores y organismos públicos. Se consultó la base de datos de la federación Andaluza de Pádel. Todos los datos extraídos en la bibliografía consultada no hacen más que indicar que el pádel es uno de los deportes más emergentes y con mayor crecimiento y evolución del siglo XXI

    Forced Convection Heat Transfer from a Finite-Height Cylinder

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    [EN] This paper presents a large eddy simulation of forced convection heat transfer in the flow around a surface-mounted finite-height circular cylinder. The study was carried out for a cylinder with height-to-diameter ratio of 2.5, a Reynolds number based on the cylinder diameter of 44 000 and a Prandtl number of 1. Only the surface of the cylinder is heated while the bottom wall and the inflow are kept at a lower fixed temperature. The approach flow boundary layer had a thickness of about 10% of the cylinder height. Local and averaged heat transfer coefficients are presented. The heat transfer coefficient is strongly affected by the free-end of the cylinder. As a result of the flow over the top being downwashed behind the cylinder, a vortex-shedding process does not occur in the upper part, leading to a lower value of the local heat transfer coefficient in that region. In the lower region, vortex-shedding takes place leading to higher values of the local heat transfer coefficient. The circumferentially averaged heat transfer coefficient is 20 % higher near the ground than near the top of the cylinder. The spreading and dilution of the mean temperature field in the wake of the cylinder are also discussed.The simulation was carried out using the supercomputing facilities of the Steinbuch Centre for Computing (SCC) of the Karlsruhe Institute of Technology. MGV has been partially supported by grant TRA2012-37714 of the Spanish Ministry of Economy and Competitiveness.García Villalba, M.; Palau-Salvador, G.; Rodi, W. (2014). Forced Convection Heat Transfer from a Finite-Height Cylinder. Flow, Turbulence and Combustion. 93(1):171-187. https://doi.org/10.1007/s10494-014-9543-7S171187931Ames, F., Dvorak, L.: Turbulent transport in pin fin arrays: experimental data and predictions. J. 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