17 research outputs found

    The World Spider Trait database : a centralised global open repository for curated data on spider traits

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    Publisher Copyright: © The Author(s) 2021. Published by Oxford University Press.Spiders are a highly diversified group of arthropods and play an important role in terrestrial ecosystems as ubiquitous predators, which makes them a suitable group to test a variety of eco-evolutionary hypotheses. For this purpose, knowledge of a diverse range of species traits is required. Until now, data on spider traits have been scattered across thousands of publications produced for over two centuries and written in diverse languages. To facilitate access to such data, we developed an online database for archiving and accessing spider traits at a global scale. The database has been designed to accommodate a great variety of traits (e.g. ecological, behavioural and morphological) measured at individual, species or higher taxonomic levels. Records are accompanied by extensive metadata (e.g. location and method). The database is curated by an expert team, regularly updated and open to any user. A future goal of the growing database is to include all published and unpublished data on spider traits provided by experts worldwide and to facilitate broad cross-taxon assays in functional ecology and comparative biology. Database URL:https://spidertraits.sci.muni.cz/.Peer reviewe

    Baryon Acoustic Oscillations from Integrated Neutral Gas Observations: an instrument to observe the 21cm hydrogen line in the redshift range 0.13 < z < 0.45 – status update

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    International audienceBINGO (BAO from Integrated Neutral Gas Observations) is a unique radio telescope designed to map the intensity of neutral hydrogen distribution at cosmological distances, making the first detection of Baryon Acoustic Oscillations (BAO) in the frequency band 980 MHz-1260 MHz, corresponding to a redshift range 0.127 < z < 0.449. BAO is one of the most powerful probes of cosmological parameters and BINGO was designed to detect the BAO signal to a level that makes it possible to put new constraints on the equation of state of dark energy. The telescope will be built in Paraíba, Brazil and consists of two ∼ 40m mirrors, a feedhorn array of 50 horns, and no moving parts, working as a drift-scan instrument. It will cover a 15◦ declination strip centered at ∼ δ = –15◦, mapping ∼ 5400 square degrees in the sky. The BINGO consortium is led by University of São Paulo with co-leadership at National Institute for Space Research and Campina Grande Federal University (Brazil). Telescope subsystems have already been fabricated and tested, and the dish and structure fabrication are expected to start in late 2020, as well as the road and terrain preparatio

    Substituição do milho pela casca de café ou de soja em dietas para vacas leiteiras: comportamento ingestivo, concentração de nitrogênio uréico no plasma e no leite, balanço de compostos nitrogenados e produção de proteína microbiana Replacing corn with coffee hulls or soyhulls in diets of dairy cows: chewing activity, ruminal metabolism, nitrogen utilization and microbial protein synthesis

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    Objetivou-se avaliar o efeito da substituição do milho pela casca de café ou pela casca de soja em dietas à base de cana-de-açúcar, com 60% de concentrado, sobre o comportamento ingestivo, o pH e a concentração de amônia no líquido ruminal, a excreção de uréia na urina (EU), a concentração de N-uréia no plasma (NUP) e no leite (NUL), o balanço de compostos nitrogenados e a síntese de proteína microbiana em vacas leiteiras, em comparação a uma dieta com silagem de milho. Foram utilizadas 12 vacas holandesas, puras e mestiças, distribuídas em três quadrados latinos 4 x 4. A dieta controle foi composta de silagem de milho e 40% de concentrado (SiMi), com base na MS. Foram utilizadas três dietas contendo cana-de-açúcar e 60% de concentrado, de modo que os percentuais de substituição do milho foram 0% (CMi), 25% com casca de café (CCC) ou 50% com casca de soja (CCS), com base na MS total da dieta. O tempo total de mastigação foi menor para a dieta SiMi e não foi afetado pela inclusão de casca de café ou casca de soja. O pH ruminal não diferiu nos tempos 0 e 3 horas após a alimentação matinal. A dieta CCC resultou, três horas após alimentação, em menor concentração de amônia ruminal em relação às demais, com exceção da dieta CMi. Não foram observadas diferenças na EU e NUL, sendo registrados valores médios de 179,31 mg/kg de PV e 12,59 mg/dL, respectivamente. A substituição do milho pela casca de café ou de soja não promove melhora no ambiente ruminal. A síntese de compostos nitrogenados microbianos e a eficiência microbiana ruminal não são influenciadas pelas dietas e apresentam valores médios de 273 g/dia e 130,08 gPBmic/kg de NDT, respectivamente.<br>Twelve purebred and crossbred Holstein cows were assigned to three replicated 4 x 4 Latin squares to evaluate the effects of replacing corn grain with coffee hulls or soyhulls on chewing activity, ruminal metabolism, nitrogen utilization, and microbial protein synthesis. Animals were fed a control diet containing 60% corn silage and 40% concentrate (CS diet) or three sugarcane based diets with forage to concentrate ratio of 40:60. The sugarcane diets contained 100% of corn in the concentrate (SC diet) or partial replacement of corn with 25% of coffee hulls (SCH diet) or 50% of soyhulls (SSH diet). Total chewing time was lowest on CS and did not change by the inclusion of coffee hulls or soyhulls in the diet. Ruminal pH did not differ significantly at zero (pre-feeding) and at three hours after the morning feeding across diets. The same was observed for the ruminal concentration of ammonia N immediately before feeding. However, the concentration of ruminal ammonia N at three hours after feeding was lower on SCH than on CS and SSH diets but was similar to that of SC diet. No significant differences were observed for the urinary excretion of urea N and milk urea N, which averaged 179.31 mg/kg BW and 12.59 mg/dL, respectively, among diets. Replacing corn grain with coffee hulls or soyhulls did not improve the ruminal environment. Microbial protein synthesis and microbial efficiency were both not affected by diets averaging 273 g/day and 130.08 g microbial CP/kg TDN, respectively

    Immunocompromised patients with acute respiratory distress syndrome : Secondary analysis of the LUNG SAFE database

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    The aim of this study was to describe data on epidemiology, ventilatory management, and outcome of acute respiratory distress syndrome (ARDS) in immunocompromised patients. Methods: We performed a post hoc analysis on the cohort of immunocompromised patients enrolled in the Large Observational Study to Understand the Global Impact of Severe Acute Respiratory Failure (LUNG SAFE) study. The LUNG SAFE study was an international, prospective study including hypoxemic patients in 459 ICUs from 50 countries across 5 continents. Results: Of 2813 patients with ARDS, 584 (20.8%) were immunocompromised, 38.9% of whom had an unspecified cause. Pneumonia, nonpulmonary sepsis, and noncardiogenic shock were their most common risk factors for ARDS. Hospital mortality was higher in immunocompromised than in immunocompetent patients (52.4% vs 36.2%; p < 0.0001), despite similar severity of ARDS. Decisions regarding limiting life-sustaining measures were significantly more frequent in immunocompromised patients (27.1% vs 18.6%; p < 0.0001). Use of noninvasive ventilation (NIV) as first-line treatment was higher in immunocompromised patients (20.9% vs 15.9%; p = 0.0048), and immunodeficiency remained independently associated with the use of NIV after adjustment for confounders. Forty-eight percent of the patients treated with NIV were intubated, and their mortality was not different from that of the patients invasively ventilated ab initio. Conclusions: Immunosuppression is frequent in patients with ARDS, and infections are the main risk factors for ARDS in these immunocompromised patients. Their management differs from that of immunocompetent patients, particularly the greater use of NIV as first-line ventilation strategy. Compared with immunocompetent subjects, they have higher mortality regardless of ARDS severity as well as a higher frequency of limitation of life-sustaining measures. Nonetheless, nearly half of these patients survive to hospital discharge. Trial registration: ClinicalTrials.gov, NCT02010073. Registered on 12 December 2013
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