51 resultados para Hernández, María Amelia


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11 cartas (mecanografiadas y manuscritas); entre 170x225mm y 215x275mm

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8 cartas (mecanografiadas y manuscritas); entre 150x210mm y 215x275mm .- 1 Felicitación de Navidad (manuscrita y sin fecha) ; 110mmx160mm

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El libro que tiene en sus manos responde a la voluntad de los profesores del Máster en Construcción Sostenible y Eficiencia Energética de la Universidad del País Vasco UPV/EHU de ofrecer un conjunto integrado de visiones relativas al estudio, diseño y ejecución de edificios ecoeficientes.

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2 cartas (mecanografiada y manuscrita); entre 215x155mm y 210x315mm.

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Duración (en horas): De 21 a 30 horas Destinatario: Estudiante y Docente

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Background: Vascular ulcers are commonly seen in daily practice at all levels of care and have great impact at personal, professional and social levels with a high cost in terms of human and material resources. Given that the application of autologous platelet rich plasma has been shown to decrease healing times in various different studies in the hospital setting, we considered that it would be interesting to assess the efficacy and feasibility of this treatment in primary care. The objectives of this study are to assess the potential efficacy and safety of autologous platelet rich plasma for the treatment of venous ulcers compared to the conventional treatment (moist wound care) in primary care patients with chronic venous insufficiency (C, clinical class, E, aetiology, A, anatomy and P, pathophysiology classification C6). Design: We will conduct a phase III, open-label, parallel-group, multicentre, randomized study. The subjects will be 150 patients aged between 40 and 100 years of age with an at least 2-month history of a vascular venous ulcer assigned to ten primary care centres. For the treatment with autologous platelet rich plasma, all the following tasks will be performed in the primary care setting: blood collection, centrifugation, separation of platelet rich plasma, activation of coagulation adding calcium chloride and application of the PRP topically after gelification. The control group will receive standard moist wound care. The outcome variables to be measured at baseline, and at weeks 5 and 9 later include: reduction in the ulcer area, Chronic Venous Insufficiency Quality of Life Questionnaire score, and percentage of patients who require wound care only once a week. Discussion: The results of this study will be useful to improve the protocol for using platelet rich plasma in chronic vascular ulcers and to favour wider use of this treatment in primary care.

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El principal motivo para elaborar este trabajo fin de grado ha sido la propia motivación que supone investigar y trabajar sobre un tema tan importante dentro de la educación, ámbito en el cual me gustaría desempeñar una labor profesional. Sin embargo, no es el único. También he notado a lo largo de mis años de estudiante universitario que había una gran cantidad de artículos y trabajos de otros autores respecto a este tema. No obstante, no existía ni de lejos, la misma cantidad de propuestas prácticas. Es decir, encontré mucha teoría y pocos proyectos puestos en práctica. Así pues, he querido incluir en este trabajo un apartado donde se describe una unidad didáctica para la asignatura de educación física y con el claro objetivo del desarrollo íntegro de los estudiantes a través de una educación basada en valores. De este modo y respondiendo a la pregunta referente al aspecto innovador de mi trabajo, lo que aporta mi trabajo con respecto a otras investigaciones es la propuesta práctica que se desarrolla en el último apartado, una unidad didáctica desarrollada en base a la educación en valores y que busca la educación íntegra del alumnado. En este caso, en educación física y para alumnos de 3º de la E.S.O. Por otra parte, creo necesaria la investigación de este trabajo dada la poca evolución que ha seguido la educación en los últimos tiempos. La sociedad ha sufrido enormes cambios a un ritmo frenético y no ha ocurrido lo mismo con la educación, que se ha quedado, a mi parecer, anclada en objetivos, contenidos, metodologías… de hace décadas. De ahí la necesidad de investigar en otras formas de educación dando prioridad a temas como los valores o las actitudes sobre conocimientos y procedimientos.

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[ES] En este trabajo se analiza la relevancia de las características individuales y del hogar en la toma de decisiones sobre la compra y la descarga ilegal de archivos musicales de Internet. Para este estudio, se utilizan los datos de la Encuesta de Hábitos y Prácticas Culturales (de 2010-2011), llevada a cabo por el Ministerio de Cultura en España. Esta cuestión se convierte en un tema interesante a tratar, ya que la revolución digital ha conseguido aumentar los medios disponibles para escuchar música, creando así un amplio abanico de oportunidades para los consumidores, tanto legales como ilegales. Comenzamos con un repaso a las consecuencias de la digitalización en el mercado de la música grabada, poniendo especial interés en los aspectos que se refieren a la demanda y motivamos el interés por estudiarla. Estimamos dos modelos de elección binaria en los que se analiza cuál es el efecto que tiene cada una de las variables sobre la compra y la descarga de música.

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324 p. + anexos

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We report an experimental study on confined systems formed by butyloxybenzylidene octylaniline liquid crystal (4O.8) + gamma-alumina nanoparticles. The effects of the confinement in the thermal and dielectric properties of the liquid crystal under different densities of nanoparticles is analyzed by means of high resolution Modulated Differential Scanning Calorimetry (MDSC) and broadband dielectric spectroscopy. First, a drastic depression of the N-I and SmA-N transition temperatures is observed with confinement, the more concentration of nanoparticles the deeper this depression is, driving the nematic range closer to the room temperature. An interesting experimental law is found for both transition temperatures. Second, the change in shape of the heat capacity peaks is quantified by means of the full width half maximum (FWHM). Third, the confinement does not noticeably affect the molecular dynamics. Finally, the combination of nanoparticles and the external applied electric field tends to favor the alignment of the molecules in metallic cells. All these results indicate that the confinement of liquid crystals by means of gamma-alumina nanoparticles could be optimum for liquid crystal-based electrooptic devices.

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[ES] La iglesia de Santa María tiene una planta de unos 22x18 metros y cuenta con tres pórticos (sur, oeste y norte) así como una espadaña exenta. Adyacente al sudeste se encuentra la ermita de Santa Lucía. Las excavaciones arqueológicas de dos zonas de unos 6 x 3 metros en el interior y el exterior de la iglesia sirven como hilo conductor a las jornadas de puertas abiertas al público.

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Current research efforts are focused on the application of growth factors, such as glial cell line-derived neurotrophic factor (GDNF) and vascular endothelial growth factor (VEGF), as neuroregenerative approaches that will prevent the neurodegenerative process in Parkinson's disease. Continuing a previous work published by our research group, and with the aim to overcome different limitations related to growth factor administration, VEGF and GDNF were encapsulated in poly(lactic-co-glycolic acid) nanospheres (NS). This strategy facilitates the combined administration of the VEGF and GDNF into the brain of 6-hydroxydopamine (6-OHDA) partially lesioned rats, resulting in a continuous and simultaneous drug release. The NS particle size was about 200 nm and the simultaneous addition of VEGF NS and GDNF NS resulted in significant protection of the PC-12 cell line against 6-OHDA in vitro. Once the poly(lactic-co-glycolic acid) NS were implanted into the striatum of 6-OHDA partially lesioned rats, the amphetamine rotation behavior test was carried out over 10 weeks, in order to check for in vivo efficacy. The results showed that VEGF NS and GDNF NS significantly decreased the number of amphetamine-induced rotations at the end of the study. In addition, tyrosine hydroxylase immunohistochemical analysis in the striatum and the external substantia nigra confirmed a significant enhancement of neurons in the VEGF NS and GDNF NS treatment group. The synergistic effect of VEGF NS and GDNF NS allows for a reduction of the dose by half, and may be a valuable neurogenerative/neuroreparative approach for treating Parkinson's disease.

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Lymphangioleiomyomatosis (LAM) is a rare lung-metastasizing neoplasm caused by the proliferation of smooth muscle-like cells that commonly carry loss-of-function mutations in either the tuberous sclerosis complex 1 or 2 (TSC1 or TSC2) genes. While allosteric inhibition of the mechanistic target of rapamycin (mTOR) has shown substantial clinical benefit, complementary therapies are required to improve response and/or to treat specific patients. However, there is a lack of LAM biomarkers that could potentially be used to monitor the disease and to develop other targeted therapies. We hypothesized that the mediators of cancer metastasis to lung, particularly in breast cancer, also play a relevant role in LAM. Analyses across independent breast cancer datasets revealed associations between low TSC1/2 expression, altered mTOR complex 1 (mTORC1) pathway signaling, and metastasis to lung. Subsequently, immunohistochemical analyses of 23 LAM lesions revealed positivity in all cases for the lung metastasis mediators fascin 1 (FSCN1) and inhibitor of DNA binding 1 (ID1). Moreover, assessment of breast cancer stem or luminal progenitor cell biomarkers showed positivity in most LAM tissue for the aldehyde dehydrogenase 1 (ALDH1), integrin-beta 3 (ITGB3/CD61), and/or the sex-determining region Y-box 9 (SOX9) proteins. The immunohistochemical analyses also provided evidence of heterogeneity between and within LAM cases. The analysis of Tsc2-deficient cells revealed relative over-expression of FSCN1 and ID1; however, Tsc2-deficient cells did not show higher sensitivity to ID1-based cancer inhibitors. Collectively, the results of this study reveal novel LAM biomarkers linked to breast cancer metastasis to lung and to cell stemness, which in turn might guide the assessment of additional or complementary therapeutic opportunities for LAM.