13 research outputs found

    On the Influence of VOCs on New Particle Growth in a Continental-Mediterranean Region

    Get PDF
    [Abstract] A field campaign has been performed in the Madrid region to study the VOC influence in the growth of new particles in ambient air. A number of instruments have been deployed to characterize the main pollutant gases and particle properties and composition. The measurements were performed simultaneously at three sites (rural, urban background and urban traffic influenced) in the period 1–17 July 2019. The sites: Tres Cantos (rural), CIEMAT (urban background) and Leganés (urban traffic) were located within the Madrid airshed. Particle size distributions, mass concentrations at fractions PM10, PM2.5 and PM1, black carbon, VOCs species and gaseous pollutants (NOx and O3) were obtained in the sites. Some supplementary measurements were obtained in at least one of the sites: meteorological parameters, non-refractory submicron aerosol species and vertical profiles of aerosol optical properties. It has been observed that the new particle formation (NPF) events, nucleation and subsequent growth, happened at a regional scale, although differently among the sites. In the rural site, fewer events than expected were observed because of the high temperatures that affected the BVOC emissions. In the urban background site, the highest number of events was reached. In this station, it is common to receive air masses from the nearby forest and from the urban area, producing a mix of conditions with high BVOC and AVOC concentrations. In the urban traffic site, several NPF cases appeared, being a site dominated by AVOCs. Among the BVOCs measured in the three stations, the most common were α-Pinene and Limonene. Among the AVOCs measured, aromatics and linear hydrocarbon compounds for C10 and above were found. The linear group was found to be predominant during the NPF event days in the urban background site. This work provides new insights about the aerosol-forming precursors and growth of new particles in the Madrid region.This research has been partially funded by the CRISOL Project (CGL2017-85344-R MINECO/AEI/FEDER, UE), OASIS project (PID2021-127885OB-I00 fund by MCIN/ AEI/10.13039/501100011033 and by 'ERDF A way of making Europe') and by the TIGAS-CM project (Madrid Regional Government Y2018/EMT-5177)Comunidad de Madrid; Y2018/EMT-517

    Digitalización y el Desarrollo sostenible de la MIPYME en Ecuador

    Get PDF
    La digitalización en las empresas, luego de la crisis vivida por la pandemia del COVID-19, es un proceso fundamental para la supervivencia y crecimiento de un entorno empresarial en constante evolución. De acuerdo a Brynjolfsson y McAfee (2014), autores del libro La segunda era de las máquinas, la digitalización permite a las empresas ser más ágiles y eficientes, lo que es esencial en una realidad que exige respuestas rápidas a los cambios del mercado. La capacidad de adaptarse y tomar decisiones informadas se ha vuelto aún más vital en la época actual.Con la pandemia del COVID-19, en el mundo se produjo una explosión de la digitalización de las transacciones y relaciones entre personas y/u organizaciones de todo tipo; lo que conlleva una serie de desafíos que para el caso de las micro, pequeñas y medianas empresas (MIPYME), significa canalizar recursos y, sobre todo, un cambio de actitud dirigida hacia la consolidación de una serie de acciones estratégicas soportadas en los principios de la proactividad y adaptabilidad organizacional encaminada a dar respuesta a cómo enfrentar un mundo que está cambiando a una velocidad imparable. De ahí, surge la necesidad de comprender el estado situacional de esa digitalización acelerada en el sector de la MIPYME, el cual, como complemento estratégico, también servirá de base para diseñar y poner en ejecución una serie de acciones multisectoriales que ayuden a reencausarla y así pasar de un proceso de digitalización de sobrevivencia para no morir en el camino de los efectos pandémicos a uno que, luego de los tres años de pandemia, permita tener una digitalización ordenada y alineada al perfil de las MIPYME y a las estrategias que actualmente tienen vigentes

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

    Get PDF
    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)

    Get PDF
    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

    EscriVid 2020. Reflexiones y escrituras en torno a pandemia(s) y asilamiento(s)

    Get PDF
    La publicación de EscriVid 2020. Reflexiones en torno a pandemia(s) y aislamiento(s), ha sido posible gracias al trabajo de las coordinadoras del volumen, Guadalupe Reinoso y Alicia Vaggione, especialmente convocadas por el Área de Publicaciones de la Facultad de Filosofía y Humanidades de la Universidad Nacional de Córdoba para esta tarea. Ha sido posible también gracias al trabajo de María Angélica Bella que estuvo a cargo del diseño de interior, de Manuel Coll que estuvo a cargo del diseño de las imágenes y del diseño de tapa y al trabajo impecable (y muy respetuoso) de corrección que hicieron Florencia Colombetti y Lucía Bima. Ha sido posible también gracias al interés deseante de lxs autorxs puestos a estudiar, leer, pensar, escribir. La Oficina de Conocimiento Abierto ha registrado en este Repositorio el aporte de cada autor / autora disponiendo los metadatos que identifican a cada trabajo y el acceso a los textos completos de cada uno de ellos.Fil: Reinoso, Guadalupe. Universidad Nacional de Córdoba. Facultad de Filosofía y Humanidades. Escuela de Filosofía; Argentina.Fil: Reinoso, Guadalupe. Universidad Nacional de Córdoba. Facultad de Filosofía y Humanidades. Centro de Investigaciones Maria Saleme Burnichón; Argentina.Fil: Reinoso, Guadalupe. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.Fil: Vaggione, Alicia. Universidad Nacional de Córdoba. Facultad de Filosofía y Humanidades; Argentina.Fil: Vaggione, Alicia. Universidad Nacional de Córdoba. Facultad de Ciencias Sociales; Argentina

    Clonal chromosomal mosaicism and loss of chromosome Y in elderly men increase vulnerability for SARS-CoV-2

    Full text link
    The pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2, COVID-19) had an estimated overall case fatality ratio of 1.38% (pre-vaccination), being 53% higher in males and increasing exponentially with age. Among 9578 individuals diagnosed with COVID-19 in the SCOURGE study, we found 133 cases (1.42%) with detectable clonal mosaicism for chromosome alterations (mCA) and 226 males (5.08%) with acquired loss of chromosome Y (LOY). Individuals with clonal mosaic events (mCA and/or LOY) showed a 54% increase in the risk of COVID-19 lethality. LOY is associated with transcriptomic biomarkers of immune dysfunction, pro-coagulation activity and cardiovascular risk. Interferon-induced genes involved in the initial immune response to SARS-CoV-2 are also down-regulated in LOY. Thus, mCA and LOY underlie at least part of the sex-biased severity and mortality of COVID-19 in aging patients. Given its potential therapeutic and prognostic relevance, evaluation of clonal mosaicism should be implemented as biomarker of COVID-19 severity in elderly people. Among 9578 individuals diagnosed with COVID-19 in the SCOURGE study, individuals with clonal mosaic events (clonal mosaicism for chromosome alterations and/or loss of chromosome Y) showed an increased risk of COVID-19 lethality

    Variables psicológicas implicadas en la actitud e iniciativa emprendedora (II): personalidad, cognición y emoción

    Get PDF
    El proyecto titulado: Variables implicadas en la actitud e iniciativa emprendedora (II): personalidad, cognición y emoción, es la continuidad de otro presentado en la convocatoria anterior (2016-2017) cuyo objetivo era evaluar variables psicológicas en la actitud emprendedora de los estudiantes universitarios de la Universidad Complutense de Madrid (UCM). Este segundo proyecto ha tenido por objetivo principal ampliar la evaluación a otras facultades y áreas de conocimiento de nuestra universidad a fin de obtener el mapa y perfil de la iniciativa emprendedora del universitario UCM

    De vicarios y obispos. El establecimiento de la diócesis de Tijuana, 1940-1964

    No full text
    Durante la segunda mitad del siglo xix y la primera del xx, en Baja California se trató de trasformar a una iglesia católica misional en una diocesana, pero sin éxito. Sin em- bargo, a partir de la década de 1940 el nuevo vicario y la orden de los Misioneros del Espíritu Santo reorganizaron la estructura eclesial y aprovecharon las trasformaciones sociales, económicas y políticas ocurridas en Baja California. En este trabajo se analizan algunos aspectos del proceso de consolidación institucional de la Iglesia católica en la penín- sula, que desembocó en el establecimiento de la diócesis de Tijuana. Para explicarlo se consideran tres factores genera- les: la organización religiosa y el papel de las asociaciones laicas; el crecimiento demográfico de la zona norte y las relaciones entre el vicariato y las autoridades locales y también las internas

    La creación de un aula práctica para la enseñanza jurídica

    No full text
    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
    corecore