148 research outputs found

    Metodología de la investigación y cine comercial: claves de una experiencia docente

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    Introducción: El cine se ha configurado, ya desde sus inicios, como una de las recreaciones humanas más extraordinarias que existen desde la perspectiva de la comunicación. Objetivo: El objetivo de este texto es presentar una experiencia docente en la que se empleó cine comercial (CC) en el desarrollo de la asignatura optativa"Investigación en salud: métodos y técnicas", que se imparte en la Escuela de Enfermería de la Universitat de Barcelona. Desarrollo: Los contenidos de esta asignatura son los habituales en los cursos de investigación, y lo más interesante fue el empleo del CC, que se convirtió en el material (objeto) de estudio. En el transcurso de la asignatura, el alumno debía realizar una serie de actividades: revisión bibliográfica, preparación de un cuestionario, selección y visualización de una película de la que debía elaborar la correspondiente ficha técnica y un informe sobre los aspectos referidos a la enfermedad, el paciente, los profesionales y los valores, sentimientos y emociones asociados al problema de salud. Conclusiones: La experiencia puso de manifiesto la importancia de la observación atenta de las escenas para captar los mensajes no verbales relacionados con el problema de salud; la necesidad de adquirir habilidades para el manejo de las bases de datos bibliográfi cas (Medline, CINAHL, etc.), y la conveniencia de una mayor formación en el lenguaje cinematográfico para un mejor aprovechamiento didáctico del CC

    Principios básicos de genética para estudios de bioética

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    Ritmo auricular bajo

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    Presentamos el hallazgo casual de una alteración electrocardiográfica compatible con ritmo auricular bajo en un reconocimiento médico para la aptitud deportiva de un paciente varón de 9 años. El ritmo auricular bajo es un ritmo ectópico que se puede encontrar en pacientes en edad pediátrica o deportistas. Se considera una variante de la normalidad pero debe realizarse un buen diagnóstico diferencial de patologías potencialmente graves

    Effect of high pressure homogenization and heat treatment on physical properties and stability of almond and hazelnut milks

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    [EN] The effect of high pressure homogenisation (HPH) and heat treatments on physicochemical properties and physical stability of almond and hazelnut milks was studied. Vegetable milks were obtained and homogenised by applying 62, 103 and 172 MPa (MF1, MF2 and MF3, respectively). Untreated and MF3 samples were also submitted to two different heat treatments (85ºC/30 min (LH) or 121ºC/15 min (HH)). Physical and structural properties of the products were greatly affected by heat treatments and HPH. In almond milk, homogenised samples showed a significant reduction in particle size, which turned from bimodal and polydisperse to monodisperse distributions. Particle surface charge, clarity and Whiteness Index were increased and physical stability of samples was improved, without affecting either viscosity or protein stability. Hazelnut beverages showed similar trends, but HPH notably increased their viscosity while change their rheological behaviour, which suggested changes in protein conformation. HH treatments caused an increment of particle size due to the formation oil droplet-protein body clusters, associated with protein denaturation. Samples submitted to the combined treatment MF3 and LH showed the greatest stability.The authors acknowledge the financial support provided by Universitat Politecnica de Valencia (Valencia, Spain) for the project (PAID 05-11-2740). Author N. Bernat appreciates the Conselleria de Eduacion of Valencia (Spain) for a FPI Grant (Programa VALi + d para investigadores en formacion. ACIF/2011).Bernat Pérez, N.; Cháfer Nácher, MT.; Rodríguez García, J.; Chiralt, A.; González Martínez, MC. (2015). Effect of high pressure homogenization and heat treatment on physical properties and stability of almond and hazelnut milks. Food Science and Technology. 62:488-496. https://doi.org/10.1016/j.lwt.2014.10.045S4884966

    Ritme auricular baix

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    Presentem la troballa casual d’una alteració electrocardiogràfica compatible amb ritme auricular baix en un reconeixement mèdic de l’aptitud esportiva d’un pacient home de 9 anys. El ritme auricular baix és un ritme ectòpic que es pot trobar en pacients d’edat pediàtrica o esportistes. Es considera una variant de la normalitat però cal fer un bon diagnòstic diferencial de patologies potencialment greus

    Epitaxial YBa2Cu3O7-x nanocomposite thin films from colloidal solutions

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    A methodology of general validity to prepare epitaxial nanocomposite films based on the use of colloidal solutions containing different crystalline preformed oxide nanoparticles (ex situ nanocomposites) is reported. The trifluoroacetate (TFA) metal-organic chemical solution deposition route is used with alcoholic solvents to grow epitaxial YBaCuO (YBCO) films. For this reason stabilizing oxide nanoparticles in polar solvents is a challenging goal. We have used scalable nanoparticle synthetic methodologies such as thermal and microwave-assisted solvothermal techniques to prepare CeO and ZrO nanoparticles. We show that stable and homogeneous colloidal solutions with these nanoparticles can be reached using benzyl alcohol, triethyleneglycol, nonanoic acid, trifluoroacetic acid or decanoic acid as protecting ligands, thereby allowing subsequent mixing with alcoholic TFA solutions. An elaborate YBCO film growth analysis of these nanocomposites allows the identification of the different relevant growth phenomena, e.g. nanoparticles pushing towards the film surface, nanoparticle reactivity, coarsening and nanoparticle accumulation at the substrate interface. Upon mitigation of these effects, YBCO nanocomposite films with high self-field critical currents (J ∼ 3-4 MA cm at 77 K) were reached, indicating no current limitation effects associated with epitaxy perturbation, while smoothed magnetic field dependences of the critical currents at high magnetic fields and decreased effective anisotropic pinning behavior confirm the effectiveness of the novel developed approach to enhance vortex pinning. In conclusion, a novel low cost solution-derived route to high current nanocomposite superconducting films and coated conductors has been developed with very promising features.All authors acknowledge the EU (EU-FP7 NMP-LA-2012-280432 EUROTAPES project). ICMAB acknowledges MINECO (MAT2014-51778-C2-1-R) and Generalitat de Catalunya (2014SGR 753 and Xarmae). UGhent acknowledges the Special Research Fund (BOF), the Research Foundation Flanders (FWO) and the Institute for the Promotion of Innovation through Science and Technology in Flanders (IWT). TEM microscopy work was conducted in the Catalan Institute of Nanoscience and Nanotechnology (ICN2). The authors acknowledge the ICN2 Electron Microscopy Division for offering access to their instruments and expertise. Part of the STEM microscopy work was conducted in 'Laboratorio de Microscopias Avanzadas' at the Instituto de Nanociencia de Aragon—Universidad de Zaragoza. The authors acknowledge the LMA-INA for offering access to their instruments and expertise. JG and MC also acknowledge the Ramon y Cajal program (RYC-2012-11709 and RYC-2013-12448 respectively).Peer Reviewe

    Aplicació de la carpeta d'aprenentatge a la Universitat

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    Podeu consultar la versió castellana a recurs relacionat.Aquest treball es nodreix de les experiències d'innovació i millora docent de disciplines tan dispars con Biologia,Farmàcia, Filologia, Infermeria, Pedagogia i Química, utilitzant la carpeta d'aprenentatge com a instrument de concreció

    The heritage consideration of the Cheste Workers University: historical reinterpretation

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    [EN] This communication proposal is part of the Research Project "Conservation Management Plan: Cheste Worker University Auditorium-Paraninfo", of the Universitat Politècnica de València, directed by Professor Carmen Jordá, awarded and funded by the Getty Foundation of Los Angeles in its international programme "Keeping It Modern" Grant.The subject of the project is framed within the field of the conservation of Modern Movement architecture as heritage and refers to the Universidad Laboral de Cheste, a 1967 project by the architect Fernando Moreno Barberá. It was built in 1969 as part of the Mutualidades Laborales plan, whose official propaganda boasted of the magnitude of the work in Cheste and its rapid execution, in a very short period of little more than a year.The project sets out the archival and historical research carried out in order to achieve the heritage status of the complex. This paper will detail the main results obtained during the documentary research process. In addition, the comparison between the original project, the previous project, other contemporary works by the same author and the current state has been able to narrate the evolution of the project and the work, as well as highlighting the changes and transformations made over the years.It should be noted that the research includes in the analysis documentation compiled through oral and visual testimonies that allow us to understand the value of the monument in its entirety.This document was originally adopted from the Research Project “Conservation Management Plan: Cheste Worker University Auditorium-Paraninfo”, Universitat Politècnica de València, directed by Full Professor Carmen Jordá, awarded and financed by the Getty Foundation of Los Angeles in its international programme “Keeping It Modern” Grant, and used in prior Research Conferences. The contribution of the previous conference organizers and committees is hereby gratefully acknowledged.Usó Martín, F.; Jordá Such, C.; Palomares Figueres, MT.; Iborra Bernad, FJ.; Gradolí Martínez, C.; Herrero Vicent, P. (2023). The heritage consideration of the Cheste Workers University: historical reinterpretation. Editorial Universitat Politècnica de València. 484-497. https://doi.org/10.4995/VIBRArch2022.2022.1523048449

    Polyresistant Mycobacterium bovis Infection in Human and Sympatric Sheep, Spain, 2017-2018.

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    The main etiologic agent of tuberculosis (TB) in livestock is Mycobacterium bovis; human TB cases caused by M. bovis are rare. Analysis of a TB outbreak caused by polyresistant M. bovis involving a human and sympatric sheep in Spain suggests local circulation of drug-resistant M. bovis strains among livestock.This work was supported by the Department of Agriculture, Livestock, Fisheries and Food of the Government of Catalonia and by the Spanish Ministry of Agriculture, Fisheries and Food. The Institute of Agrifood Research and Technology is supported by Centres de Recerca de Catalunya Programme/Generalitat de Catalunya.S

    Probing localized strain in solution-derived YBa2Cu3O7−δ nanocomposite thin films

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    Enhanced pinning due to nanoscale strain is unique to the high-Tc cuprates, where pairing may be modified with lattice distortion. Therefore a comprehensive understanding of the defect landscape is required for a broad range of applications. However, determining the type and distribution of defects and their associated strain constitutes a critical task, and for this aim, real-space techniques for atomic resolution characterization are necessary. Here, we use scanning transmission electron microscopy (STEM) to study the atomic structure of individual defects of solution-derived YBa2Cu3O7 (YBCO) nanocomposites, where the inclusion of incoherent secondary phase nanoparticles within the YBCO matrix dramatically increases the density of Y1Ba2Cu4O8 (Y124) intergrowths, the commonest defect in YBCO thin films. The formation of the Y124 is found to trigger a concatenation of strain-derived interactions with other defects and the concomitant nucleation of intrinsic defects, which weave a web of randomly distributed nanostrained regions that profoundly transform the vortex-pinning landscape of the YBCO nanocomposite thin films.Authors acknowledge financial support from Spanish Ministry of Economy and Competitiveness through the “Severo Ochoa” Programme for Centres of Excellence in R&D (SEV-2015-0496), CONSOLIDER Excellence Network (MAT2015-68994-REDC), COACHSUPENERGY project (MAT2014-51778-C2-1-R, co-financed by the European Regional Development Fund), European Research Council Advanced Grant Award ERC-2014-ADG-669504, and from the Catalan Government with 2014-SGR-753 and Xarmae. J.G. and M.C. acknowledge Ramon y Cajal Program (RyC-2012- 11709 and RYC-2013-12448, respectively). The microscopy work were conducted in the Laboratorio de Microscopias Avanzadas at Instituto de Nanociencia de Aragon - Universidad de Zaragoza (Zaragoza, Spain). Authors acknowledge the LMA-INA for offering access to their instruments and expertise.Peer reviewe
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