31 research outputs found

    El peso de la información de los gobiernos en la prensa española de referencia nacional y local. Análisis de casos de los diarios El País, El Mundo, Sur y Málaga Hoy (2010)

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    En una etapa especialmente convulsa para la prensa escrita y su modelo de negocio por los efectos de la crisis y el impacto de las nuevas tecnologías, la presente tesis indaga sobre algunas consecuencias que se observan en el comportamiento de los diarios de calidad. El punto de partida medirá la influencia en la determinación de la agenda informativa de cuatro diarios de pago las informaciones que suministran los gobiernos central, autonómico y locales. Los resultados servirán para profundizar en las rutinas profesionales, el uso de las fuentes en relación a las noticias fabricadas por los gabinetes de comunicación y, en general, la calidad de los contenidos que se difunden. Elementos sobre los que gravita la credibilidad. El trabajo pretende contrastar con datos algunas de las percepciones negativas que envuelven e ejercicio de periodismo en España, analizar las posibles causas que se encuentran detrás de ese deterioro y reflejar el sentir de los profesionales y académicos que analizan y afrontan en estos últimos años la evolución de los también denominados periódicos de referencia. Para el desarrollo de esta tesis se ha realizado un análisis cuantitativo de las informaciones publicadas en las secciones más significativas de El País y El Mundo, los dos periódicos de referencia de mayor difusión de España y Sur y Málaga Hoy, diario líder de la provincia de Málaga y uno de los últimos rotativos en papel que han nacido en España. Con la elección se busca estudiar analogías y diferencias en los comportamientos entre rotativos de ámbito nacional y provincial, en los que respecta a la difusión a través de sus páginas de noticias procedentes de la Comunicación de la Administración. La muestra utilizada para el trabajo de campo fueron las noticias publicadas por los cuatro periódicos durante una semana a lo largo de los doce meses del año 2010, en un muestreo aleatorio sistemático. Los resultados se han complementado con un análisis cualitativo en 2015, mediante la fórmula de panel de expertos, con un cuestionario idéntico y una selección vía muestreo opinático, con 28 participantes. Prácticamente la mitad de ellos son directores de periódicos. El resto de los participantes, decanos de media docena de facultades de Ciencias de la Información y la Comunicación de España y académicos estudiosos sobre la materia. Como conclusiones, el análisis cuantitativo revela el excesivo peso de la presencia de los gobiernos en las informaciones principales de secciones como España y Andalucía, así como la facilidad de los gabinetes de prensa de la Administración para condicionar la agenda. El estudio cuantitativo refleja la convicción de la gran mayoría de los participantes de que se da un abuso de información oficial que impacta sobre la credibilidad. Bibliografía. Canel, M.J. Comunicación Política. 2006. Diezhandino, M.P. El periodista en la encrucijada.2012. Cerezuelo B. Periodistas, empresas e instituciones. 2006. Díaz Nosty, B. El déficit mediático. 2005. Vázquez, M.A. Periodismo de declaraciones 2005. Tuchman, G. La producción de la noticia. 198

    Managing 2.0 newsrooms: insight stories of spontaneous innovation and improvisation

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    Nowadays audiences love live communication (Deuze, 2011), the possibility of reaching news in real time, receiving contents without the effort of having to search for them. The concept “news now” (Sheller, 2014) is an audience imperative. Previous research show that media have developed in the last decade a great dependence on social networks (Singer et alt, 2011). Source of new audiences, social media are also a space for the verification and localization of new contents. Sometimes these functions has forced to alter editorial models to host viral topics, necessary to try to overcome the crisis of attention particularly concerning in the context of the young people (Boczkowski and Mitchelstein, 2016). Digital media estimate that one third of their visits come from Facebook (Somaya, 2014), a figure that forces them to create specific strategies that ensure the reputation and growth of the company in the 2.0 sphere because the atomization of content causes fragmented and decontextualized audiences to consume individual news. Recently, Emily Bell (2018) confirmed also that Facebook is reshaping newsrooms. From the point of view of the audience, the number of users of Facebook or Twitter in Spain is not reached by any mass media. This context generates a strange symbiosis, which combines the need and the competition that we consider relevant to analyze. One of the routines which come from this relationship has been the integration of soft news on the front page of online media. This practice has also affected media credibility.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

    X chromosome inactivation does not necessarily determine the severity of the phenotype in Rett syndrome patients

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    Rett syndrome (RTT) is a severe neurological disorder usually caused by mutations in the MECP2 gene. Since the MECP2 gene is located on the X chromosome, X chromosome inactivation (XCI) could play a role in the wide range of phenotypic variation of RTT patients; however, classical methylation-based protocols to evaluate XCI could not determine whether the preferentially inactivated X chromosome carried the mutant or the wild-type allele. Therefore, we developed an allele-specific methylation-based assay to evaluate methylation at the loci of several recurrent MECP2 mutations. We analyzed the XCI patterns in the blood of 174 RTT patients, but we did not find a clear correlation between XCI and the clinical presentation. We also compared XCI in blood and brain cortex samples of two patients and found differences between XCI patterns in these tissues. However, RTT mainly being a neurological disease complicates the establishment of a correlation between the XCI in blood and the clinical presentation of the patients. Furthermore, we analyzed MECP2 transcript levels and found differences from the expected levels according to XCI. Many factors other than XCI could affect the RTT phenotype, which in combination could influence the clinical presentation of RTT patients to a greater extent than slight variations in the XCI pattern

    A922 Sequential measurement of 1 hour creatinine clearance (1-CRCL) in critically ill patients at risk of acute kidney injury (AKI)

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    TRY plant trait database – enhanced coverage and open access

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    Plant traits - the morphological, anatomical, physiological, biochemical and phenological characteristics of plants - determine how plants respond to environmental factors, affect other trophic levels, and influence ecosystem properties and their benefits and detriments to people. Plant trait data thus represent the basis for a vast area of research spanning from evolutionary biology, community and functional ecology, to biodiversity conservation, ecosystem and landscape management, restoration, biogeography and earth system modelling. Since its foundation in 2007, the TRY database of plant traits has grown continuously. It now provides unprecedented data coverage under an open access data policy and is the main plant trait database used by the research community worldwide. Increasingly, the TRY database also supports new frontiers of trait‐based plant research, including the identification of data gaps and the subsequent mobilization or measurement of new data. To support this development, in this article we evaluate the extent of the trait data compiled in TRY and analyse emerging patterns of data coverage and representativeness. Best species coverage is achieved for categorical traits - almost complete coverage for ‘plant growth form’. However, most traits relevant for ecology and vegetation modelling are characterized by continuous intraspecific variation and trait–environmental relationships. These traits have to be measured on individual plants in their respective environment. Despite unprecedented data coverage, we observe a humbling lack of completeness and representativeness of these continuous traits in many aspects. We, therefore, conclude that reducing data gaps and biases in the TRY database remains a key challenge and requires a coordinated approach to data mobilization and trait measurements. This can only be achieved in collaboration with other initiatives

    Insights into the high-energy γ-ray emission of Markarian 501 from extensive multifrequency observations in the Fermi era

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    We report on the γ-ray activity of the blazar Mrk 501 during the first 480 days of Fermi operation. We find that the average Large Area Telescope (LAT) γ-ray spectrum of Mrk 501 can be well described by a single power-law function with a photon index of 1.78 ± 0.03. While we observe relatively mild flux variations with the Fermi-LAT (within less than a factor of two), we detect remarkable spectral variability where the hardest observed spectral index within the LAT energy range is 1.52 ± 0.14, and the softest one is 2.51 ± 0.20. These unexpected spectral changes do not correlate with the measured flux variations above 0.3 GeV. In this paper, we also present the first results from the 4.5 month long multifrequency campaign (2009 March 15-August 1) on Mrk 501, which included the Very Long Baseline Array (VLBA), Swift, RXTE, MAGIC, and VERITAS, the F-GAMMA, GASP-WEBT, and other collaborations and instruments which provided excellent temporal and energy coverage of the source throughout the entire campaign. The extensive radio to TeV data set from this campaign provides us with the most detailed spectral energy distribution yet collected for this source during its relatively low activity. The average spectral energy distribution of Mrk 501 is well described by the standard one-zone synchrotron self-Compton (SSC) model. In the framework of this model, we find that the dominant emission region is characterized by a size ≲0.1 pc (comparable within a factor of few to the size of the partially resolved VLBA core at 15-43 GHz), and that the total jet power (≃1044 erg s-1) constitutes only a small fraction (∼10-3) of the Eddington luminosity. The energy distribution of the freshly accelerated radiating electrons required to fit the time-averaged data has a broken power-law form in the energy range 0.3 GeV-10 TeV, with spectral indices 2.2 and 2.7 below and above the break energy of 20 GeV. We argue that such a form is consistent with a scenario in which the bulk of the energy dissipation within the dominant emission zone of Mrk 501 is due to relativistic, proton-mediated shocks. We find that the ultrarelativistic electrons and mildly relativistic protons within the blazar zone, if comparable in number, are in approximate energy equipartition, with their energy dominating the jet magnetic field energy by about two orders of magnitude. © 2011. The American Astronomical Society

    Broadband Multi-wavelength Properties of M87 during the 2017 Event Horizon Telescope Campaign

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    Abstract: In 2017, the Event Horizon Telescope (EHT) Collaboration succeeded in capturing the first direct image of the center of the M87 galaxy. The asymmetric ring morphology and size are consistent with theoretical expectations for a weakly accreting supermassive black hole of mass ∼6.5 × 109 M ⊙. The EHTC also partnered with several international facilities in space and on the ground, to arrange an extensive, quasi-simultaneous multi-wavelength campaign. This Letter presents the results and analysis of this campaign, as well as the multi-wavelength data as a legacy data repository. We captured M87 in a historically low state, and the core flux dominates over HST-1 at high energies, making it possible to combine core flux constraints with the more spatially precise very long baseline interferometry data. We present the most complete simultaneous multi-wavelength spectrum of the active nucleus to date, and discuss the complexity and caveats of combining data from different spatial scales into one broadband spectrum. We apply two heuristic, isotropic leptonic single-zone models to provide insight into the basic source properties, but conclude that a structured jet is necessary to explain M87’s spectrum. We can exclude that the simultaneous γ-ray emission is produced via inverse Compton emission in the same region producing the EHT mm-band emission, and further conclude that the γ-rays can only be produced in the inner jets (inward of HST-1) if there are strongly particle-dominated regions. Direct synchrotron emission from accelerated protons and secondaries cannot yet be excluded

    Prevalence, associated factors and outcomes of pressure injuries in adult intensive care unit patients: the DecubICUs study

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    Funder: European Society of Intensive Care Medicine; doi: http://dx.doi.org/10.13039/501100013347Funder: Flemish Society for Critical Care NursesAbstract: Purpose: Intensive care unit (ICU) patients are particularly susceptible to developing pressure injuries. Epidemiologic data is however unavailable. We aimed to provide an international picture of the extent of pressure injuries and factors associated with ICU-acquired pressure injuries in adult ICU patients. Methods: International 1-day point-prevalence study; follow-up for outcome assessment until hospital discharge (maximum 12 weeks). Factors associated with ICU-acquired pressure injury and hospital mortality were assessed by generalised linear mixed-effects regression analysis. Results: Data from 13,254 patients in 1117 ICUs (90 countries) revealed 6747 pressure injuries; 3997 (59.2%) were ICU-acquired. Overall prevalence was 26.6% (95% confidence interval [CI] 25.9–27.3). ICU-acquired prevalence was 16.2% (95% CI 15.6–16.8). Sacrum (37%) and heels (19.5%) were most affected. Factors independently associated with ICU-acquired pressure injuries were older age, male sex, being underweight, emergency surgery, higher Simplified Acute Physiology Score II, Braden score 3 days, comorbidities (chronic obstructive pulmonary disease, immunodeficiency), organ support (renal replacement, mechanical ventilation on ICU admission), and being in a low or lower-middle income-economy. Gradually increasing associations with mortality were identified for increasing severity of pressure injury: stage I (odds ratio [OR] 1.5; 95% CI 1.2–1.8), stage II (OR 1.6; 95% CI 1.4–1.9), and stage III or worse (OR 2.8; 95% CI 2.3–3.3). Conclusion: Pressure injuries are common in adult ICU patients. ICU-acquired pressure injuries are associated with mainly intrinsic factors and mortality. Optimal care standards, increased awareness, appropriate resource allocation, and further research into optimal prevention are pivotal to tackle this important patient safety threat
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