80 research outputs found

    Generation of gravity waves in an experimental facility

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    The development of a computational tool to study the propagation of gravity waves in water is carried out by reproducing the conditions of an experimental study. The problem consists in the propagation of a gravity wave in a channel with a bottom topography where the is already a mean flow in the opposite direction. The physics of such problem is analogous to the one involved in the Hawking radiation of a black hole, which stresses the practical importance of the computational tool being developed, given that black holes are phenomena difficult for us to study. The problem will be analyzed with both a theoretical and a numerical approach. The numerical simulations will be performed by means of the software Gerris. As a first approach, a simpler version of the problem in which the channel is straight is analyzed. From the theoretical point of view, in these conditions and under some assumptions about the nature of the flow, the equations describing the motion of the fluid (Navier-Stokes equations) can be simplified up to a linear theory which provides an analytical solution. The analytical linear results are then contrasted with those obtained with a numerical simulation in order to check the validity of the latter. Once this step is accomplished, the actual problem of a flow in channel with a bottom topography will be studied by means of a numerical simulation, using the same computational methodology. The results obtained will be compared to those obtained in the experimental study mentioned earlier. The aim of this project is to implement a numerical tool that allows us to investigate up to which point the experimental analogy between gravity waves propagating against a flume in a channel of variable depth and the Hawking radiation of a black hole is applicable. The computational tool we will derive can be later extended to the study of the propagation of water gravity waves in flows under different conditions.Ingeniería Aeroespacia

    Desarrollo de una plataforma educativa en favor del aprendizaje de la ortografía española para niños en edad temprana a través del uso de la tecnología y ludificación

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    [Resumen]: Este proyecto tiene como objetivo central el desarrollo de una herramienta educativa que potencie las habilidades ortográficas en niños en edad temprana, haciendo uso de la tecnología y estrategias de ludificación. Se ha creado una plataforma web interactiva que emplea inteligencia artificial para generar dictados adaptados al nivel del usuario. Además, se ha diseñado un algoritmo de corrección propio que ofrece retroalimentación personalizada, identificando y priorizando los errores ortográficos para una mejora efectiva. Para optimizar la retención a largo plazo, se ha integrado el algoritmo de Leitner, facilitando así el proceso de aprendizaje. La inclusión de elementos lúdicos como puntos, niveles y desafíos tiene como propósito motivar activamente a los usuarios y mantener su interés en el aprendizaje. Esta propuesta representa un avance en la enseñanza de la ortografía, ofreciendo una experiencia educativa envolvente y efectiva que promueve el desarrollo de habilidades lingüísticas de manera atractiva para los niños.[Abstract]: This project aims to develop an educational tool that enhances spelling skills in young children through the utilization of technology and gamification strategies. An interactive web platform has been created, leveraging artificial intelligence to generate dictations tailored to the user's level. Additionally, a proprietary correction algorithm has been designed to provide personalized feedback, identifying and prioritizing spelling errors for effective improvement. To optimize long-term retention, the Leitner algorithm has been integrated, streamlining the learning process. The incorporation of gamified elements such as points, levels, and challenges aims to actively motivate users and sustain their interest in learning. This proposal represents a step forward in spelling education, offering an engaging and effective educational experience that promotes the development of language skills in an appealing manner for children.Traballo fin de grao (UDC.FIC). Enxeñaría Informática. Curso 2023/202

    Proteomic approach in the search of new cardiovascular biomarkers

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    Proteomic approach in the search of new cardiovascular biomarkers With the increasing incidence of cardiovascular diseases worldwide, specifically atherosclerosis and heart failure, the search for novel biomarkers remains a priority. As opposed to complex diagnostic techniques that may not be suitable to be applied to the wider population, biomarkers are useful for population screening. The search for novel biomarkers is based on knowledge of the molecular and cellular processes that take place in the development of a specific disease. Atherosclerosis and heart failure are characterized by a long period of silent disease progression, allowing early diagnosis and the potential of early therapeutic intervention. The use of the so-called proteomic techniques allows not only protein identification but partial characterization, which includes expression and also post-translational modification of these proteins. This allows for the discovery of previously unknown proteins involved in cardiovascular diseases, including some that may be suitable to be used as biomarkers. However, to approach this issue, we have to overcome difficulties such as tissue heterogeneity (vessel wall or myocardium) and the lack of fresh human samples. We discuss the proteomic study of human plaques, secreted proteins by pathologic and normal vessel wall, and left ventricular hypertrophy as potential sources of new biologic markers of cardiovascular disease

    Easy-To-Synthesize Spirocyclic Compounds Possess Remarkable in Vivo Activity against Mycobacterium tuberculosis

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    Society urgently needs new, effective medicines for the treatment of tuberculosis. To kick-start the required hit-to-lead campaigns, the libraries of pharmaceutical companies have recently been evaluated for starting points. The GlaxoSmithKline (GSK) library yielded many high-quality hits, and the associated data were placed in the public domain to stimulate engagement by the wider community. One such series, the spiro compounds, are described here. The compounds were explored by a combination of traditional in-house research and open source methods. The series benefits from a particularly simple structure and a short associated synthetic chemistry route. Many members of the series displayed striking potency and low toxicity, and highly promising in vivo activity in a mouse model was confirmed with one of the analogues. Ultimately the series was discontinued due to concerns over safety, but the associated data remain public domain, empowering others to resume the series if the perceived deficiencies can be overcome

    Contemplata : momentos místicos

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    Alter ego : eutrapelia, poesía y sabiduría

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