32 research outputs found

    Caracterización de catalizadores multifuncionales basados en Cu/Zn/Zr (CZZ) para la producción de dimetil éter (DME) en reactor de lecho fluidizadp

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    Debido a la gran problemática ambiental actual es necesario desarrollar combustibles sintéticos con emisiones neutras de carbono. En este trabajo se ha realizado un estudio fluidodinámico de catalizadores multifuncionales basados en Cu/Zn/Zr para la reacción de hidrogenación de CO2 a DME en reactores de lecho fluidizado

    Response of the human myocardium to ischemic injury and preconditioning: The role of cardiac and comorbid conditions, medical treatment, and basal redox status

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    Vàlvula aòrtica; Isquèmia; MiocardiVálvula aórtica; Isquemia; MiocardioAortic valve; Ischemia; MyocardiumBackground The diseased human myocardium is highly susceptible to ischemia/reoxygenation (I/R)-induced injury but its response to protective interventions such as ischemic preconditioning (IPreC) is unclear. Cardiac and other pre-existing clinical conditions as well as previous or ongoing medical treatment may influence the myocardial response to I/R injury and protection. This study investigated the effect of both on myocardial susceptibility to I/R-induced injury and the protective effects of IPreC. Methods and results Atrial myocardium from cardiac surgery patients (n = 300) was assigned to one of three groups: aerobic control, I/R alone, and IPreC. Lactate dehydrogenase leakage, as a marker of cell injury, and cell viability were measured. The basal redox status was determined in samples from 90 patients. The response to I/R varied widely. Myocardium from patients with aortic valve disease was the most susceptible to injury whereas myocardium from dyslipidemia patients was the least susceptible. Tissue from females was better protected than tissue from males. Myocardium from patients with mitral valve disease was the least responsive to IPreC. The basal redox status was altered in the myocardium from patients with mitral and aortic valve disease. Conclusions The response of the myocardium to I/R and IPreC is highly variable and influenced by the underlying cardiac pathology, dyslipidemia, sex, and the basal redox status. These results should be taken into account in the design of future clinical studies on the prevention of I/R injury and protection.This study was supported by the Instituto de Salud Carlos III (FIS) [grant number 12/00119]

    Anti-Spike antibodies 3 months after SARS-CoV-2 mRNA vaccine booster dose in patients on hemodialysis: the prospective SENCOVAC study

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    Background: Patients on hemodialysis are at high-risk for complications derived from coronavirus disease 2019 (COVID-19). The present analysis evaluated the impact of a booster vaccine dose and breakthrough severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infections on humoral immunity 3 months after the booster dose. Methods: This is a multicentric and prospective study assessing immunoglobulin G anti-Spike antibodies 6 and 9 months after initial SARS-CoV-2 vaccination in patients on hemodialysis that had also received a booster dose before the 6-month assessment (early booster) or between the 6- and 9-month assessments (late booster). The impact of breakthrough infections, type of vaccine, time from the booster and clinical variables were assessed. Results: A total of 711 patients [67% male, median age (range) 67 (20-89) years] were included. Of these, 545 (77%) received an early booster and the rest a late booster. At 6 months, 64 (9%) patients had negative anti-Spike antibody titers (3% of early booster and 29% of late booster patients, P =. 001). At 9 months, 91% of patients with 6-month negative response had seroconverted and there were no differences in residual prevalence of negative humoral response between early and late booster patients (0.9% vs 0.6%, P =. 693). During follow-up, 35 patients (5%) developed breakthrough SARS-CoV-2 infection. Antibody titers at 9 months were independently associated with mRNA-1273 booster (P =. 001), lower time from booster (P =. 043) and past breakthrough SARS-CoV-2 infection (P <. 001). Conclusions: In hemodialysis patients, higher titers of anti-Spike antibodies at 9 months were associated with mRNA-1273 booster, lower time from booster and past breakthrough SARS-CoV-2 infectionThe present project has been supported by Fresenius Medical Care, Diaverum, Vifor Pharma, Vircell, Fundación Renal Iñigo Álvarez de Toledo and ISCIII FEDER funds RICORS2040 (RD21/0005

    Effectiveness of an intervention for improving drug prescription in primary care patients with multimorbidity and polypharmacy:Study protocol of a cluster randomized clinical trial (Multi-PAP project)

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    This study was funded by the Fondo de Investigaciones Sanitarias ISCIII (Grant Numbers PI15/00276, PI15/00572, PI15/00996), REDISSEC (Project Numbers RD12/0001/0012, RD16/0001/0005), and the European Regional Development Fund ("A way to build Europe").Background: Multimorbidity is associated with negative effects both on people's health and on healthcare systems. A key problem linked to multimorbidity is polypharmacy, which in turn is associated with increased risk of partly preventable adverse effects, including mortality. The Ariadne principles describe a model of care based on a thorough assessment of diseases, treatments (and potential interactions), clinical status, context and preferences of patients with multimorbidity, with the aim of prioritizing and sharing realistic treatment goals that guide an individualized management. The aim of this study is to evaluate the effectiveness of a complex intervention that implements the Ariadne principles in a population of young-old patients with multimorbidity and polypharmacy. The intervention seeks to improve the appropriateness of prescribing in primary care (PC), as measured by the medication appropriateness index (MAI) score at 6 and 12months, as compared with usual care. Methods/Design: Design:pragmatic cluster randomized clinical trial. Unit of randomization: family physician (FP). Unit of analysis: patient. Scope: PC health centres in three autonomous communities: Aragon, Madrid, and Andalusia (Spain). Population: patients aged 65-74years with multimorbidity (≥3 chronic diseases) and polypharmacy (≥5 drugs prescribed in ≥3months). Sample size: n=400 (200 per study arm). Intervention: complex intervention based on the implementation of the Ariadne principles with two components: (1) FP training and (2) FP-patient interview. Outcomes: MAI score, health services use, quality of life (Euroqol 5D-5L), pharmacotherapy and adherence to treatment (Morisky-Green, Haynes-Sackett), and clinical and socio-demographic variables. Statistical analysis: primary outcome is the difference in MAI score between T0 and T1 and corresponding 95% confidence interval. Adjustment for confounding factors will be performed by multilevel analysis. All analyses will be carried out in accordance with the intention-to-treat principle. Discussion: It is essential to provide evidence concerning interventions on PC patients with polypharmacy and multimorbidity, conducted in the context of routine clinical practice, and involving young-old patients with significant potential for preventing negative health outcomes. Trial registration: Clinicaltrials.gov, NCT02866799Publisher PDFPeer reviewe

    RICORS2040 : The need for collaborative research in chronic kidney disease

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    Chronic kidney disease (CKD) is a silent and poorly known killer. The current concept of CKD is relatively young and uptake by the public, physicians and health authorities is not widespread. Physicians still confuse CKD with chronic kidney insufficiency or failure. For the wider public and health authorities, CKD evokes kidney replacement therapy (KRT). In Spain, the prevalence of KRT is 0.13%. Thus health authorities may consider CKD a non-issue: very few persons eventually need KRT and, for those in whom kidneys fail, the problem is 'solved' by dialysis or kidney transplantation. However, KRT is the tip of the iceberg in the burden of CKD. The main burden of CKD is accelerated ageing and premature death. The cut-off points for kidney function and kidney damage indexes that define CKD also mark an increased risk for all-cause premature death. CKD is the most prevalent risk factor for lethal coronavirus disease 2019 (COVID-19) and the factor that most increases the risk of death in COVID-19, after old age. Men and women undergoing KRT still have an annual mortality that is 10- to 100-fold higher than similar-age peers, and life expectancy is shortened by ~40 years for young persons on dialysis and by 15 years for young persons with a functioning kidney graft. CKD is expected to become the fifth greatest global cause of death by 2040 and the second greatest cause of death in Spain before the end of the century, a time when one in four Spaniards will have CKD. However, by 2022, CKD will become the only top-15 global predicted cause of death that is not supported by a dedicated well-funded Centres for Biomedical Research (CIBER) network structure in Spain. Realizing the underestimation of the CKD burden of disease by health authorities, the Decade of the Kidney initiative for 2020-2030 was launched by the American Association of Kidney Patients and the European Kidney Health Alliance. Leading Spanish kidney researchers grouped in the kidney collaborative research network Red de Investigación Renal have now applied for the Redes de Investigación Cooperativa Orientadas a Resultados en Salud (RICORS) call for collaborative research in Spain with the support of the Spanish Society of Nephrology, Federación Nacional de Asociaciones para la Lucha Contra las Enfermedades del Riñón and ONT: RICORS2040 aims to prevent the dire predictions for the global 2040 burden of CKD from becoming true

    Una experiencia de mejoramiento de la calidad: el proceso de la reforma educativa en España

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    La última reforma global del sistema educativo se llevó a cabo en 1970 con la Ley General de Educación. En las dos décadas transcurridas desde entonces han tenido lugar cambios sustanciales en el conjunto de la sociedad española, cambios que hacían aconsejable una transformación del Sistema Educativo. Entre ellos merecen destacarse la Constitución de 1978, que sienta los principios legislativos, establece una nueva ordenación y organización territorial del Estado y a la que debe ajustarse toda normativa educativa, la incorporación de España a la Comunidad Europea, la evolución del sistema productivo, el avance del conocimiento científico, la mayor demanda social de educación, etc

    La atención a las necesidades educativas especiales : revisión histórica, retos de futuro

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    Ponencia que tiene como eje central la atención a la diversidad en el sistema educativo y en la que se analizan los siguientes aspectos: el concepto de diversidad del alumnado, las medidas previstas en la LOGSE para atender a la diversidad del alumnado y algunas reflexiones sobre la aplicación que se está llevando a cabo, un análisis de la Ley de Calidad, finalizando con una serie de propuestas del autor sobre el tema.ExtremaduraConsejería de Educación. Dirección General de Calidad y Equidad Educativa; Calle Delgado Valencia 6, 2ª planta; 06800 Mérida (Badajoz); Tel. +34924006764; Fax +34924006728; [email protected]

    Segon debat: LOrdenació del Sistema Educatiu

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    Segundo debate titulado ''L'Ordenació del Sistema Educatiu'' a cargo de Miguel Soler Gracia (Ex-Director General de Formación Profesional del Ministerio de Educación y Ciencia) y Rafael Carbonell Peris (Secretari Autonòmic d'Educació de la Generalitat Valenciana). Producción: Servei de Formació Permanent i Innovació Educativa de la Universitat de València (SFPIE). Centre de Recursos Educatius i Aprenentatge Multimèdia de la UV (CREAM). (www.uv.es/sfpie) (http://cream.uv.es

    Projecte curricular d'Educació Primària

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    El objetivo fundamental de este trabajo es ofrecer modelos y materiales de desarrollo curricular que faciliten y orienten el trabajo del profesorado en la elaboración de proyectos curriculares. Los principales aspectos a tener en cuenta son: la adecuación de los objetivos generales de la Educación Primaria al contexto escolar, socio-económico, cultural y sociolingüístico del centro y a las características del alumnado; la secuenciación por ciclos de los contenidos de cada una de las áreas de conocimiento; la elaboración de criterios de evaluación para cada ciclo y las decisiones sobre el proceso de evaluación de la progresión del alumno/a en el aprendizaje y los criterios de promoción de ciclo. Estos aspectos se concretan en la elaboración de un proyecto curricular a cargo del Equipo de Reforma de la etapa Primaria de la Conselleria de Cultura, Educació i Ciència de la Comunitat Valenciana.ValenciaBiblioteca de Educación del Ministerio de Educación, Cultura y Deporte; Calle San Agustín, 5 - 3 planta; 28014 Madrid; Tel. +34917748000; [email protected]
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