11 research outputs found

    Mitochondrial physiology

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    As the knowledge base and importance of mitochondrial physiology to evolution, health and disease expands, the necessity for harmonizing the terminology concerning mitochondrial respiratory states and rates has become increasingly apparent. The chemiosmotic theory establishes the mechanism of energy transformation and coupling in oxidative phosphorylation. The unifying concept of the protonmotive force provides the framework for developing a consistent theoretical foundation of mitochondrial physiology and bioenergetics. We follow the latest SI guidelines and those of the International Union of Pure and Applied Chemistry (IUPAC) on terminology in physical chemistry, extended by considerations of open systems and thermodynamics of irreversible processes. The concept-driven constructive terminology incorporates the meaning of each quantity and aligns concepts and symbols with the nomenclature of classical bioenergetics. We endeavour to provide a balanced view of mitochondrial respiratory control and a critical discussion on reporting data of mitochondrial respiration in terms of metabolic flows and fluxes. Uniform standards for evaluation of respiratory states and rates will ultimately contribute to reproducibility between laboratories and thus support the development of data repositories of mitochondrial respiratory function in species, tissues, and cells. Clarity of concept and consistency of nomenclature facilitate effective transdisciplinary communication, education, and ultimately further discovery

    Mitochondrial physiology

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    As the knowledge base and importance of mitochondrial physiology to evolution, health and disease expands, the necessity for harmonizing the terminology concerning mitochondrial respiratory states and rates has become increasingly apparent. The chemiosmotic theory establishes the mechanism of energy transformation and coupling in oxidative phosphorylation. The unifying concept of the protonmotive force provides the framework for developing a consistent theoretical foundation of mitochondrial physiology and bioenergetics. We follow the latest SI guidelines and those of the International Union of Pure and Applied Chemistry (IUPAC) on terminology in physical chemistry, extended by considerations of open systems and thermodynamics of irreversible processes. The concept-driven constructive terminology incorporates the meaning of each quantity and aligns concepts and symbols with the nomenclature of classical bioenergetics. We endeavour to provide a balanced view of mitochondrial respiratory control and a critical discussion on reporting data of mitochondrial respiration in terms of metabolic flows and fluxes. Uniform standards for evaluation of respiratory states and rates will ultimately contribute to reproducibility between laboratories and thus support the development of data repositories of mitochondrial respiratory function in species, tissues, and cells. Clarity of concept and consistency of nomenclature facilitate effective transdisciplinary communication, education, and ultimately further discovery

    Evaluación del papel de la dirección y los equipos docentes en la elaboración y desarrollo de los proyectos curriculares de centro

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    Investigación publicada. Convocatoria de Concurso Nacional de Proyectos de Investigación Educativa. Resumen basado en el de la publicación. D.L. tomado del catálogo de la Biblioteca NacionalSe realiza un estudio en 40 centros de Educación Primaria y Secundaria Obligatoria en Andalucía para conocer como intervienen las direcciones y equipos docentes en la elaboración y desarrollo de los proyectos curriculares del centro. Se estudian 40 proyectos curriculares de centro, y se reconstruye su proceso de elaboración. Para ello se realizan al menos tres entrevistas en cada centro, y se reúnen las principales normativas curriculares y los proyectos realizados por los principales editoriales. La información ha sido tratada con el programa informático NUDIST. Se han seleccionado diez centros, de los que se han realizado diez estudios de caso, mediante los cuales se ha realizado un informe multicasos.Ministerio Educación CIDEES

    Discovering HIV related information by means of association rules and machine learning

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    Acquired immunodeficiency syndrome (AIDS) is still one of the main health problems worldwide. It is therefore essential to keep making progress in improving the prognosis and quality of life of affected patients. One way to advance along this pathway is to uncover connections between other disorders associated with HIV/AIDS-so that they can be anticipated and possibly mitigated. We propose to achieve this by using Association Rules (ARs). They allow us to represent the dependencies between a number of diseases and other specific diseases. However, classical techniques systematically generate every AR meeting some minimal conditions on data frequency, hence generating a vast amount of uninteresting ARs, which need to be filtered out. The lack of manually annotated ARs has favored unsupervised filtering, even though they produce limited results. In this paper, we propose a semi-supervised system, able to identify relevant ARs among HIV-related diseases with a minimal amount of annotated training data. Our system has been able to extract a good number of relationships between HIV-related diseases that have been previously detected in the literature but are scattered and are often little known. Furthermore, a number of plausible new relationships have shown up which deserve further investigation by qualified medical experts

    Quality of Colonoscopy Is Associated With Adenoma Detection and Postcolonoscopy Colorectal Cancer Prevention in Lynch Syndrome

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    Background & Aims: Colonoscopy reduces colorectal cancer (CRC) incidence and mortality in Lynch syndrome (LS) carriers. However, a high incidence of postcolonoscopy CRC (PCCRC) has been reported. Colonoscopy is highly dependent on endoscopist skill and is subject to quality variability. We aimed to evaluate the impact of key colonoscopy quality indicators on adenoma detection and prevention of PCCRC in LS. Methods: We conducted a multicenter study focused on LS carriers without previous CRC undergoing colonoscopy surveillance (n = 893). Incident colorectal neoplasia during surveillance and quality indicators of all colonoscopies were analyzed. We performed an emulated target trial comparing the results from the first and second surveillance colonoscopies to assess the effect of colonoscopy quality indicators on adenoma detection and PCCRC incidence. Risk analyses were conducted using a multivariable logistic regression model. Results: The 10-year cumulative incidence of adenoma and PCCRC was 60.6% (95% CI, 55.5%–65.2%) and 7.9% (95% CI, 5.2%–10.6%), respectively. Adequate bowel preparation (odds ratio [OR], 2.07; 95% CI, 1.06–4.3), complete colonoscopies (20% vs 0%; P =.01), and pan-chromoendoscopy use (OR, 2.14; 95% CI, 1.15–3.95) were associated with significant improvement in adenoma detection. PCCRC risk was significantly lower when colonoscopies were performed during a time interval of less than every 3 years (OR, 0.35; 95% CI, 0.14–0.97). We observed a consistent but not significant reduction in PCCRC risk for a previous complete examination (OR, 0.16; 95% CI, 0.03–1.28), adequate bowel preparation (OR, 0.64; 95% CI, 0.17–3.24), or previous use of high-definition colonoscopy (OR, 0.37; 95% CI, 0.02–2.33). Conclusions: Complete colonoscopies with adequate bowel preparation and chromoendoscopy use are associated with improved adenoma detection, while surveillance intervals of less than 3 years are associated with a reduction of PCCRC incidence. In LS, high-quality colonoscopy surveillance is of utmost importance for CRC prevention

    ¿Qué es un hombre? La degradación de la persona en el Holocausto judío

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    El trabajo obtuvo un premio de la Modalidad B de los Premios Tomás García Verdejo a las buenas prácticas educativas en la Comunidad Autónoma de Extremadura para el curso académico 2012-2013Se describen un conjunto de actividades llevadas a cabo en el IES Francisco de Orellana (Trujillo, Cáceres) orientadas a la investigación, conocimiento y difusión del Holocausto judío, que además pretenden mejorar la convivencia dentro y fuera del entorno escolar e inculcar valores de respeto y de aceptación del otro. Las actividades se insertan en la trayectoria de enseñanza-aprendizaje de la lengua francesa y la cultura francófona de la sección bilingüe de francés del centroES

    Biological and prognostic differences between symptomatic colorectal carcinomas and those detected by screening

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    Mitochondrial physiology: Gnaiger Erich et al ― MitoEAGLE Task Group

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