279 research outputs found
Consideraciones acerca de los contenidos y metodologías en los cursos de Química en la Educación Secundaria en Bogotá (Colombia)
La formulación de un nuevo currículo para los cursos de química general, impartidos en la Universidad Nacional de Colombia, nos llevó a indagar acerca de la química que se enseña en la secundaria y a analizar los contenidos en su coherencia y relación con los cursos universitarios. Los resultados muestran una gran intención de los profesores por impartir una química relacionada con la vida, pero muy abundante en contenidos formales y muy relacionada con los cursos universitarios de química. Las preferencias entre diversos temas no se relacionan directamente y se prevé que se privilegia una enseñanza teórica y preparatoria para la química universitaria. Esto motiva a pensar en un currículo alejado de presiones, como exámenes de ingreso o de cursos universitarios
SÍNTESIS Y CARACTERIZACIÓN DE COMPUESTOS DE COORDINACIÓN: UNA
El presente trabajo muestra los resultados exitosos en el desarrollo de un curso de laboratorio de química inorgánica mediante la implementación del modelo de Aprendizaje por Investigación, como una estrategia integradora de conocimientos que permite a los estudiantes el desarrollo de competencias de reconocimiento, interpretación y producción relacionadas con los procesos de síntesis de compuestos de coordinación de interés en el área de la química inorgánica. El desarrollo riguroso de la metodología científica condujo a la comprensión y aplicación de las teorías de enlace de valencia y orbital molecular, la teoría de coordinación de Werner y la teoría de campo cristalino; como también principios de simetría, teoría de grupos y espectroscopía infrarroja, IR
Generalized (\kappa,\mu)-space forms
Generalized (\kappa ,\mu)-space forms are introduced and studied. We examine
in depth the contact metric case and present examples for all possible
dimensions. We also analyse the trans-Sasakian case.Comment: 20 pages, several changes have been done in this versio
BUILDING BRIDGES FOR INNOVATION IN AGEING : SYNERGIES BETWEEN ACTION GROUPS OF THE EIP ON AHA
The Strategic Implementation Plan of the European Innovation Partnership on Active and Healthy Ageing (EIP on AHA) proposed six Action Groups. After almost three years of activity, many achievements have been obtained through commitments or collaborative work of the Action Groups. However, they have often worked in silos and, consequently, synergies between Action Groups have been proposed to strengthen the triple win of the EIP on AHA. The paper presents the methodology and current status of the Task Force on EIP on AHA synergies. Synergies are in line with the Action Groups' new Renovated Action Plan (2016-2018) to ensure that their future objectives are coherent and fully connected. The outcomes and impact of synergies are using the Monitoring and Assessment Framework for the EIP on AHA (MAFEIP). Eight proposals for synergies have been approved by the Task Force: Five cross-cutting synergies which can be used for all current and future synergies as they consider overarching domains (appropriate polypharmacy, citizen empowerment, teaching and coaching on AHA, deployment of synergies to EU regions, Responsible Research and Innovation), and three cross-cutting synergies focussing on current Action Group activities (falls, frailty, integrated care and chronic respiratory diseases).Peer reviewe
Deep Eutectic Solvents (DESs) and their applications [forthcoming]
Deep Eutectic Solvents (DESs) and Their Application
ARIA 2016:Care pathways implementing emerging technologies for predictive medicine in rhinitis and asthma across the life cycle
The Allergic Rhinitis and its Impact on Asthma (ARIA) initiative commenced during a World Health Organization workshop in 1999. The initial goals were (1) to propose a new allergic rhinitis classification, (2) to promote the concept of multi-morbidity in asthma and rhinitis and (3) to develop guidelines with all stakeholders that could be used globally for all countries and populations. ARIA-disseminated and implemented in over 70 countries globally-is now focusing on the implementation of emerging technologies for individualized and predictive medicine. MASK [MACVIA (Contre les Maladies Chroniques pour un Vieillissement Actif)-ARIA Sentinel NetworK] uses mobile technology to develop care pathways for the management of rhinitis and asthma by a multi-disciplinary group and by patients themselves. An app (Android and iOS) is available in 20 countries and 15 languages. It uses a visual analogue scale to assess symptom control and work productivity as well as a clinical decision support system. It is associated with an inter-operable tablet for physicians and other health care professionals. The scaling up strategy uses the recommendations of the European Innovation Partnership on Active and Healthy Ageing. The aim of the novel ARIA approach is to provide an active and healthy life to rhinitis sufferers, whatever their age, sex or socio-economic status, in order to reduce health and social inequalities incurred by the disease
ARIA 2016: Care pathways implementing emerging technologies for predictive medicine in rhinitis and asthma across the life cycle
The Allergic Rhinitis and its Impact on Asthma (ARIA) initiative commenced during a World Health Organization workshop in 1999. The initial goals were (1) to propose a new allergic rhinitis classification, (2) to promote the concept of multi-morbidity in asthma a
The curvature tensor of almost cosymplectic and almost Kenmotsu (\kappa,\mu,\nu)-spaces
We study the Riemann curvature tensor of (\kappa,\mu,\nu)-spaces when they
have almost cosymplectic and almost Kenmotsu structures, giving its writing
explicitly. This leads to the definition and study of a natural generalisation
of the contact metric (\kappa,\mu,\nu)-spaces. We present examples or
obstruction results of these spaces in all possible cases
Boosting the Performance of Graphene Cathodes in Na–O2 Batteries by Exploiting the Multifunctional Character of Small Biomolecules
M.E., J.L.G.-U., D.C., and N.O.-V. thank the European Union (Graphene Flagship-Core 3, Grant number 881603) and the Spanish Ministry of Science and Innovation (MICINN/FEDER) (RTI2018-096199-B-I00) for the financial support of this work. J.M.M., J.I.P., and S.V.-R. gratefully acknowledge funding by the Spanish Ministerio de Ciencia, Innovación y Universidades (MICINN), Agencia Estatal de Investigación (AEI), and the European Regional Development Fund (ERDF) through project RTI2018-100832-B-I00, as well as Plan de Ciencia, Tecnología e Innovación (PCTI) 2013-2017 del Principado de Asturias and the ERDF (project IDI/2018/000233). J.L.G.-U. is very thankful to the Spanish Ministry of Education, Science and Universities (MICINN) for the FPU grant (16/03498). The authors also want to acknowledge the company GRAPHENEA for supplying the graphene oxide used in this work. The authors express special thanks to María Echeverría for SEM imaging and María Jauregui for XRD measurements
Chronic kidney disease and neurological disorders: are uraemic toxins the missing piece of the puzzle?
Chronic kidney disease (CKD) perturbs the crosstalk with others organs, with the interaction between the kidneys and the heart having been studied most intensively. However, a growing body of data indicates that there is an association between kidney dysfunction and disorders of the central nervous system. In epidemiological studies, CKD is associated with a high prevalence of neurological complications, such as cerebrovascular disorders, movement disorders, cognitive impairment and depression. Along with traditional cardiovascular risk factors (such as diabetes, inflammation, hypertension and dyslipidaemia), non-traditional risk factors related to kidney damage (such as uraemic toxins) may predispose patients with CKD to neurological disorders. There is increasing evidence to show that uraemic toxins, for example indoxyl sulphate, have a neurotoxic effect. A better understanding of factors responsible for the elevated prevalence of neurological disorders among patients with CKD might facilitate the development of novel treatments. Here, we review (i) the potential clinical impact of CKD on cerebrovascular and neurological complications, (ii) the mechanisms underlying the uraemic toxins' putative action (based on pre-clinical and clinical research) and (iii) the potential impact of these findings on patient care
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