13 research outputs found
The CARMENES search for exoplanets around M dwarfs Guaranteed time observations Data Release 1 (2016-2020)
I. Ribas et al.[Context] The CARMENES instrument, installed at the 3.5 m telescope of the Calar Alto Observatory in Almería, Spain, was conceived to deliver high-accuracy radial velocity (RV) measurements with long-term stability to search for temperate rocky planets around a sample of nearby cool stars. Moreover, the broad wavelength coverage was designed to provide a range of stellar activity indicators to assess the nature of potential RV signals and to provide valuable spectral information to help characterise the stellar targets.[Aims] We describe the CARMENES guaranteed time observations (GTO), spanning from 2016 to 2020, during which 19 633 spectra for a sample of 362 targets were collected. We present the CARMENES Data Release 1 (DR1), which makes public all observations obtained during the GTO of the CARMENES survey.[Methods] The CARMENES survey target selection was aimed at minimising biases, and about 70% of all known M dwarfs within 10 pc and accessible from Calar Alto were included. The data were pipeline-processed, and high-level data products, including 18 642 precise RVs for 345 targets, were derived. Time series data of spectroscopic activity indicators were also obtained.[Results] We discuss the characteristics of the CARMENES data, the statistical properties of the stellar sample, and the spectroscopic measurements. We show examples of the use of CARMENES data and provide a contextual view of the exoplanet population revealed by the survey, including 33 new planets, 17 re-analysed planets, and 26 confirmed planets from transiting candidate follow-up. A subsample of 238 targets was used to derive updated planet occurrence rates, yielding an overall average of 1.44 ± 0.20 planets with 1 M⊕ < Mpl sin i < 1000 M⊕ and 1 day < Porb < 1000 days per star, and indicating that nearly every M dwarf hosts at least one planet. All the DR1 raw data, pipeline-processed data, and high-level data products are publicly available online.[Conclusions] CARMENES data have proven very useful for identifying and measuring planetary companions. They are also suitable for a variety of additional applications, such as the determination of stellar fundamental and atmospheric properties, the characterisation of stellar activity, and the study of exoplanet atmospheres.CARMENES is an instrument at the Centro Astronómico Hispano en Andalucía (CAHA) at Calar Alto (Almería, Spain), operated jointly by the Junta de Andalucía and the Instituto de Astrofísica de Andalucía (CSIC). CARMENES was funded by the Max-Planck-Gesellschaft (MPG), the Consejo Superior de Investigaciones Científicas (CSIC), the Ministerio de Economía y Competitividad (MINECO) and the European Regional Development Fund (ERDF) through projects FICTS-2011-02, ICTS-2017-07-CAHA-4, and CAHA16-CE-3978, and the members of the CARMENES Consortium (Max-Planck-Institut für Astronomie, Instituto de Astrofísica de Andalucía, Landessternwarte Königstuhl, Institut de Ciències de l’Espai, Institut für Astrophysik Göttingen, Universidad Complutense de Madrid, Thüringer Landessternwarte Tautenburg, Instituto de Astrofísica de Canarias, Hamburger Sternwarte, Centro de Astrobiología and Centro Astronómico Hispano-Alemán), with additional contributions by the MINECO, the Deutsche Forschungsgemeinschaft (DFG) through the Major Research Instrumentation Programme and Research Unit FOR2544 “Blue Planets around Red Stars”, the Klaus Tschira Stiftung, the states of Baden-Württemberg and Niedersachsen, and by the Junta de Andalucía. We acknowledge financial support from the Spanish Agencia Estatal de Investigación of the Ministerio de Ciencia e Innovación (AEI-MCIN) and the ERDF “A way of making Europe” through projects PID2020-117493GB-I00, PID2019-109522GB-C5[1:4], PID2019-110689RB-I00, PID2019-107061GB-C61, PID2019-107061GB-C64, PGC2018-098153-B-C33, PID2021-125627OB-C31/AEI/10.13039/501100011033, and the Centre of Excellence “Severo Ochoa” and “María de Maeztu” awards to the Institut de Ciències de l’Espai (CEX2020-001058-M), Instituto de Astrofísica de Canarias (CEX2019-000920-S), Instituto de Astrofísica de Andalucía (SEV-2017-0709), and Centro de Astrobiología (MDM-2017-0737). We also benefited from additional funding from: the Secretaria d’Universitats i Recerca del Departament d’Empresa i Coneixement de la Generalitat de Catalunya and the Agència de Gestió d’Ajuts Universitaris i de Recerca of the Generalitat de Catalunya, with additional funding from the European FEDER/ERDF funds, and from the Generalitat de Catalunya/CERCA programme; the DFG through the Major Research Instrumentation Programme and Research Unit FOR2544 “Blue Planets around Red Stars” (RE 2694/8-1); the University of La Laguna through the Margarita Salas Fellowship from the Spanish Ministerio de Universidades ref. UNI/551/2021-May-26, and under the EU Next Generation funds; the Gobierno de Canarias through projects ProID2021010128 and ProID2020010129; the Spanish MICINN under Ramón y Cajal programme RYC-2013-14875; the “Fondi di Ricerca Scientifica d’Ateneo 2021” of the University of Rome “Tor Vergata”; and the programme “Alien Earths” supported by the National Aeronautics and Space Administration (NASA) under agreement No. 80NSSC21K0593. TPeer reviewe
Treatment with tocilizumab or corticosteroids for COVID-19 patients with hyperinflammatory state: a multicentre cohort study (SAM-COVID-19)
Objectives: The objective of this study was to estimate the association between tocilizumab or corticosteroids and the risk of intubation or death in patients with coronavirus disease 19 (COVID-19) with a hyperinflammatory state according to clinical and laboratory parameters.
Methods: A cohort study was performed in 60 Spanish hospitals including 778 patients with COVID-19 and clinical and laboratory data indicative of a hyperinflammatory state. Treatment was mainly with tocilizumab, an intermediate-high dose of corticosteroids (IHDC), a pulse dose of corticosteroids (PDC), combination therapy, or no treatment. Primary outcome was intubation or death; follow-up was 21 days. Propensity score-adjusted estimations using Cox regression (logistic regression if needed) were calculated. Propensity scores were used as confounders, matching variables and for the inverse probability of treatment weights (IPTWs).
Results: In all, 88, 117, 78 and 151 patients treated with tocilizumab, IHDC, PDC, and combination therapy, respectively, were compared with 344 untreated patients. The primary endpoint occurred in 10 (11.4%), 27 (23.1%), 12 (15.4%), 40 (25.6%) and 69 (21.1%), respectively. The IPTW-based hazard ratios (odds ratio for combination therapy) for the primary endpoint were 0.32 (95%CI 0.22-0.47; p < 0.001) for tocilizumab, 0.82 (0.71-1.30; p 0.82) for IHDC, 0.61 (0.43-0.86; p 0.006) for PDC, and 1.17 (0.86-1.58; p 0.30) for combination therapy. Other applications of the propensity score provided similar results, but were not significant for PDC. Tocilizumab was also associated with lower hazard of death alone in IPTW analysis (0.07; 0.02-0.17; p < 0.001).
Conclusions: Tocilizumab might be useful in COVID-19 patients with a hyperinflammatory state and should be prioritized for randomized trials in this situatio
Role of age and comorbidities in mortality of patients with infective endocarditis
[Purpose]: The aim of this study was to analyse the characteristics of patients with IE in three groups of age and to assess the ability of age and the Charlson Comorbidity Index (CCI) to predict mortality.
[Methods]: Prospective cohort study of all patients with IE included in the GAMES Spanish database between 2008 and 2015.Patients were stratified into three age groups:<65 years,65 to 80 years,and ≥ 80 years.The area under the receiver-operating characteristic (AUROC) curve was calculated to quantify the diagnostic accuracy of the CCI to predict mortality risk.
[Results]: A total of 3120 patients with IE (1327 < 65 years;1291 65-80 years;502 ≥ 80 years) were enrolled.Fever and heart failure were the most common presentations of IE, with no differences among age groups.Patients ≥80 years who underwent surgery were significantly lower compared with other age groups (14.3%,65 years; 20.5%,65-79 years; 31.3%,≥80 years). In-hospital mortality was lower in the <65-year group (20.3%,<65 years;30.1%,65-79 years;34.7%,≥80 years;p < 0.001) as well as 1-year mortality (3.2%, <65 years; 5.5%, 65-80 years;7.6%,≥80 years; p = 0.003).Independent predictors of mortality were age ≥ 80 years (hazard ratio [HR]:2.78;95% confidence interval [CI]:2.32–3.34), CCI ≥ 3 (HR:1.62; 95% CI:1.39–1.88),and non-performed surgery (HR:1.64;95% CI:11.16–1.58).When the three age groups were compared,the AUROC curve for CCI was significantly larger for patients aged <65 years(p < 0.001) for both in-hospital and 1-year mortality.
[Conclusion]: There were no differences in the clinical presentation of IE between the groups. Age ≥ 80 years, high comorbidity (measured by CCI),and non-performance of surgery were independent predictors of mortality in patients with IE.CCI could help to identify those patients with IE and surgical indication who present a lower risk of in-hospital and 1-year mortality after surgery, especially in the <65-year group
CIBERER : Spanish national network for research on rare diseases: A highly productive collaborative initiative
Altres ajuts: Instituto de Salud Carlos III (ISCIII); Ministerio de Ciencia e Innovación.CIBER (Center for Biomedical Network Research; Centro de Investigación Biomédica En Red) is a public national consortium created in 2006 under the umbrella of the Spanish National Institute of Health Carlos III (ISCIII). This innovative research structure comprises 11 different specific areas dedicated to the main public health priorities in the National Health System. CIBERER, the thematic area of CIBER focused on rare diseases (RDs) currently consists of 75 research groups belonging to universities, research centers, and hospitals of the entire country. CIBERER's mission is to be a center prioritizing and favoring collaboration and cooperation between biomedical and clinical research groups, with special emphasis on the aspects of genetic, molecular, biochemical, and cellular research of RDs. This research is the basis for providing new tools for the diagnosis and therapy of low-prevalence diseases, in line with the International Rare Diseases Research Consortium (IRDiRC) objectives, thus favoring translational research between the scientific environment of the laboratory and the clinical setting of health centers. In this article, we intend to review CIBERER's 15-year journey and summarize the main results obtained in terms of internationalization, scientific production, contributions toward the discovery of new therapies and novel genes associated to diseases, cooperation with patients' associations and many other topics related to RD research
Construcción de una propuesta didáctica mediada por el TIC para el fortalecimiento de la culturalidad en los estudiantes de grado 5° de la Institución Educativa Manuela Beltrán
Este documento comparte proceso y resultados sobre la construcción de una propuesta didáctica mediada por TIC para el fortalecimiento de la culturalidad en los estudiantes de grado 5°, para acercarlos a las leyendas y otras tradiciones culturales departamentales, con el fin de generar sentido de pertenencia regional. Dos criterios distinguen este proyecto y le brindan relevancia más allá del caso específico en el cual se pueda aplicar, convirtiéndole en referencia para investigadores y docentes de diferentes lugares. El primero, la meta del proyecto, generar una cultura Cordobesa, pues en el entorno mundial se está construyendo una gran cultura global que amenaza las raíces de los pueblos que intentan mantener vivas sus tradiciones e identidad cultural; El segundo, la herramienta a emplear, una página web, ya que aprovechar este software en el área escolar confiere novedad y dinamismo al proyecto y acerca la labor docente al entorno altamente tecnificado y tecnológico circundante. El objetivo central de la investigación fue Construir una propuesta didáctica mediada por las TIC para el fortalecimiento de la culturalidad en los estudiantes de grado quinto de la Institución Educativa Manuela Beltrán. Para la presente investigación se seleccionó la investigación mixta de tipo descriptivo. Es de importancia nacional el éxito de este proyecto para ayudar a fortalecer la cultura regional desde el aula de clase. Adicionalmente, al dar a conocer el potencial motivador de los recursos tecnológicos se incita a otros docentes e investigadores a continuar vinculando las TIC en los procesos pedagógicos y, de igual manera, el proceso desarrollado se puede adaptar para trabajar otras temáticas, destacando la valiosa experiencia de comprobación del potencial de los principios de la psicología pedagógica para obtener aprendizaje significativo.This document shares the process and results on the construction of a didactic proposal mediated by TIC for the strengthening of culturality in 5th grade students, to bring them closer to the legends and other departmental cultural traditions, in order to generate a sense of regional belonging. Two criteria distinguish this project and give it relevance beyond the specific case in which it can be applied, making it a reference for researchers and teachers from different places. The first, the goal of the project, to generate a Cordovan culture, because in the world environment a great global culture is being built that threatens the roots of the peoples that try to keep their traditions and cultural identity alive; The second, the tool to use, a web page, since taking advantage of this software in the school area confers novelty and dynamism to the project and about the teaching work to the surrounding highly technical and technological environment. The main objective of the research was to build a didactic proposal mediated by TIC for the strengthening of culturality in fifth grade students of the Manuela Beltrán Educational Institution. Descriptive mixed research was selected for the present investigation. The success of this project is of national importance to help strengthen the regional culture from the classroom. In addition, by publicizing the motivating potential of technological resources, other teachers and researchers are encouraged to continue linking TIC in pedagogical processes and, in the same way, the process developed can be adapted to work on other topics, highlighting the valuable experience testing the potential of the principles of pedagogical psychology to obtain meaningful learning.MaestríaMagíster en Ciencias de la Educació
Caracterización de la investigación, el desarrollo tecnológico y la innovación en el sector productivo de la región fronteriza colombo venezolana. Volumen 2
En este libro en su segundo volumen, se presenta la recopilación de proyectos de Investigación e Innovación Tecnológica como resultado del desarrollo de actividades investigativas, en las cuales se involucran grupos de investigación y semilleros, instructores investigadores, docentes universitarios, administrativos, aprendices, estudiantes universitarios y empresarios del ámbito regional, nacional e internacional, quienes motivados por su espíritu emprendedor e innovador le apostaron a involucrarse en proyectos desde las áreas de automatización, electrónica y telecomunicaciones, gestión del hábitat, Diseño e implementación de soluciones en TIC, Gestión del negocio emprendimiento y empresarismo, Innovación educativa y Diseño de vestuario.In this book in its second volume, the compilation of Research and Technological Innovation projects is presented as a result of the development of research activities, in which research groups and seedbeds, research instructors, university teachers, administrators, apprentices, university students are involved. and regional, national and international entrepreneurs, who, motivated by his entrepreneurial and innovative spirit, bet him to get involved in projects from the areas of automation, electronics and telecommunications, habitat management, Design and implementation of ICT solutions, Entrepreneurship business management and entrepreneurship, educational innovation and costume design.Desarrollo de un sistema de información para los laboratorios de servicios tecnológicos basado en normatividad ISO/IEC 7025:2017 -- Implementación de tecnologías de realidad aumentada para mejorar el proceso de enseñanza aprendizaje de las operaciones logísticas de almacenamiento -- Automatización de un sistema hidropónico para la optimización de la producción de hortalizas de hoja -- Desarrollo y control de posicionamiento de un seguidor solar por seguimiento de carta solar y por maximo punto de radiación solar por lógica difusa -- Diseño de un sistema de control cinemático con open-hardware del manipulador didáctico pegasus amatrol -- Diseño de un sistema fotovoltaico híbrido grid-tied con respaldo de baterías para iluminación -- Implementación de un banco para la detección de fallas en motores trifásicos con inteligencia artificial -- Oilmaster dispositivo de detección de fallo en el sistema de lubricación en motocicletas -- Regulador de carga para picocentral hidroeléctrica -- Diseño de un sistema de percepción del impacto de choques mecánicos y golpes en el cerebro -- Crema humectante antiedad con principios activos naturales y subproductos del coee “silverskin” en sena, antioquia -- Formulación de barra de cereal partir de los subproductos del café, cacao, y sacha inchi -- Videojuego en realidad virtual como estrategia de formación para organización de eventos -- Fortalecimiento de las industrias culturales de dulces típicos en montería - departamento de córdobana199 página
1er workshop nacional: de investigación en la formación inicial de profesores de ciencias “reflexiones de la investigación formativa en ciencias mediada por contextos tecnológicos”
La vereda el Pensil del municipio de la Argentina, Huila, Colombia se caracteriza por sus cultivos de café, sin embargo, en estos habitan organismos como las serpientes y los murciélagos de los cuales se desconoce el valor biológico que tienen estos individuos y como consecuencia de esto atentan contra ellos destruyendo el equilibrio ecológico del ecosistema. Teniendo en cuenta lo anterior se planteó como objetivo de investigación generar conciencia ambiental a través de una experiencia significativa sobre la importancia biológica de los quirópteros y serpientes
El proyecto de investigación se desarrolló a partir de guías por parte los estudiantes los cuales indagaron concepciones en torno a las serpientes y murciélagos, donde se conoció la visión de la comunidad acerca del papel ecológico que cumplen. Se evidenció el desconocimiento por parte de la comunidad pues se observa que el mayor porcentaje de personas no conocen la función de controladores de plagas de ambos organismos o las funciones polinizadoras y dispersoras de semillas de los murciélagos.
En conclusión, la falta de educación ambiental puede llevar a que la comunidad genere desequilibrio biológico y atente contra especies que les genera cierto temor y que están rodeadas de mitos productos del conocimiento popular
La creación de un aula práctica para la enseñanza jurídica
El presente proyecto de innovación docente tiene como objetivo la creación de un aula práctica para el acompañamiento de las explicaciones de cátedra mediante la publicación en acceso abierto y gratuito de los casos prácticos elaborados sobre resoluciones judiciales y administrativas a lo largo del curso académico.Depto. de Derecho CivilDepto. de Derecho Mercantil, Financiero y TributarioFac. de DerechoFac. de Trabajo SocialFALSEsubmitte
Role of age and comorbidities in mortality of patients with infective endocarditis.
The aim of this study was to analyse the characteristics of patients with IE in three groups of age and to assess the ability of age and the Charlson Comorbidity Index (CCI) to predict mortality. Prospective cohort study of all patients with IE included in the GAMES Spanish database between 2008 and 2015.Patients were stratified into three age groups: A total of 3120 patients with IE (1327 There were no differences in the clinical presentation of IE between the groups. Age ≥ 80 years, high comorbidity (measured by CCI),and non-performance of surgery were independent predictors of mortality in patients with IE.CCI could help to identify those patients with IE and surgical indication who present a lower risk of in-hospital and 1-year mortality after surgery, especially in th