168 research outputs found

    Impact of cross-section uncertainties on supernova neutrino spectral parameter fitting in the Deep Underground Neutrino Experiment

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    This document was prepared by the DUNE Collaboration using the resources of the Fermi National Accelerator Laboratory (Fermilab), a U.S. Department of Energy, Office of Science, HEP User Facility. Fermilab is managed by Fermi Research Alliance, LLC (FRA), acting under Contract No. DE-AC02-07CH11359. This work was supported by CNPq, FAPERJ, FAPEG and FAPESP, Brazil; CFI, IPP and NSERC, Canada; CERN; MSMT, Czech Republic; ERDF, H2020-EU and MSCA, European Union; CNRS/IN2P3 and CEA, France; INFN, Italy; FCT, Portugal; NRF, South Korea; CAM, Fundacion "La Caixa," Junta de Andalucia-FEDER, MICINN, and Xunta de Galicia, Spain; SERI and SNSF, Switzerland; TUBITAK, Turkey; The Royal Society and UKRI/STFC, United Kingdom; DOE and NSF, United States of America. This work was also supported by FAPESB T. O. PIE 0013/2016 and UESC/PROPP 0010299-61.A primary goal of the upcoming Deep Underground Neutrino Experiment (DUNE) is to measure the Oo10 thorn MeV neutrinos produced by a Galactic core-collapse supernova if one should occur during the lifetime of the experiment. The liquid-argon-based detectors planned for DUNE are expected to be uniquely sensitive to the & nu;e component of the supernova flux, enabling a wide variety of physics and astrophysics measurements. A key requirement for a correct interpretation of these measurements is a good understanding of the energy-dependent total cross section & sigma;oE & nu; thorn for charged-current & nu;e absorption on argon. In the context of a simulated extraction of supernova & nu;e spectral parameters from a toy analysis, we investigate the impact of & sigma;oE & nu; thorn modeling uncertainties on DUNE's supernova neutrino physics sensitivity for the first time. We find that the currently large theoretical uncertainties on & sigma;oE & nu; thorn must be substantially reduced before the & nu;e flux parameters can be extracted reliably; in the absence of external constraints, a measurement of the integrated neutrino luminosity with less than 10% bias with DUNE requires & sigma;oE & nu; thorn to be known to about 5%. The neutrino spectral shape parameters can be known to better than 10% for a 20% uncertainty on the cross-section scale, although they will be sensitive to uncertainties on the shape of & sigma;oE & nu; thorn . A direct measurement of low-energy & nu;e-argon scattering would be invaluable for improving the theoretical precision to the needed level.CERNERDF, H2020-EUMSCA, European UnionCAM, SpainLa Caixa FoundationJunta de Andalucia-FEDER, SpainSpanish GovernmentXunta de GaliciaMICINN, SpainFAPESB T. O. PIE0013/2016UESC/PROPP 0010299-6

    PE IN CLIL Resources I. Grammar structures

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    The project we are presenting has been designed for the Teaching physical education in English using CLIL (Content and Language Integrated Learning) methodology ICE group. The group is composed of a researcher and teachers of Physical education in CLIL that wanted to expand the resources in this area considering there are not enough. This group works together to create better materials for PE teachers that teach using the CLIL methodology. We've started from the very base after considering the needs of everyone in order to move forward with more quality materials. The effort and motivation all of them put in is reflected in this project. The first part of this project is about grammar structures, we've analyzed the different grammar structures for the six grades/levels of primary school, and we've created a guide so teachers can follow and get some ideas from it. Presented in this document is first the content related to every grade gathering parts like verbs, prepositions, adjectives and question words and it has been chosen from the teachers according to the curriculum they are teaching in their schools. Following this are examples related to this content that have been created by us in various meetings throughout the year. In the examples portion we've tried to apply physical education content so it could facilitate their use

    CA 15-3 prognostic biomarker in SARS-CoV-2 pneumonia.

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    The severity of lung involvement is the main prognostic factor in severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. Carbohydrate antigen 15-3 (CA 15-3), a marker of lung damage and fibrosis, could help predict the prognosis of SARS-CoV-2 pneumonia. This was a retrospective and observational study. CA 15-3 was analyzed in the blood samples of patients consecutively admitted for SARS-CoV-2 pneumonia and whose blood samples were available in the biobank. Other prognostic markers were also measured (interleukin 6 [IL6], C-reactive protein [CRP], D-dimer, troponin T, and NT-ProBNP). The occurrence of in-hospital complications was registered, including death, the need for medical intensive care, and oxygen therapy at discharge. In this study, 539 patients were recruited (54.9% men, mean age: 59.6 ± 16.4 years). At admission, the mean concentrations of CA 15-3 was 20.5 ± 15.8 U/mL, and the concentration was correlated with male sex, older age, and other severity markers of coronavirus disease of 2019 (COVID-19) (IL6, CRP, D-dimer, troponine T, and NT-ProBNP). CA 15-3 levels were higher in patients who died (n = 56, 10.4%) (35.33 ± 30.45 vs. 18.8 ± 12.11, p < 0.001), who required intensive medical support (n = 78, 14.4%; 31.17 ± 27.83 vs. 18.68 ± 11.83; p < 0.001), and who were discharged with supplemental oxygen (n = 64, 13.3%; 22.65 ± 14.41 vs. 18.2 ± 11.7; p = 0.011). Elevated CA 15-3 levels (above 34.5 U/mL) were a strong predictor of a complicated in-hospital course, in terms of a higher risk of death (adjusted odds ratio [OR] 3.74, 95% confidence interval [CI]: 1.22-11.9, p = 0.022) and need for intensive care (adjusted OR 4.56, 95% CI: 1.37-15.8) after adjusting for all other risk factors. The degree of lung damage and fibrosis evaluated in terms of CA 15-3 concentrations may allow early identification of the increased risk of complications in patients with SARS-CoV-2 pneumonia.S

    Nuevos datos sobre la distribución de mamíferos (Mammalia) en las dunas de Erg Chebbi (Marruecos)

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    The progressive increase of adventure tourism in the area around the dunes of Erg Chebbi has threatened, for almost two decades, the conservation of the only dune complex (Erg) of Morocco. In order to assess some of the effects of this activity on the local mammal communities, an intensive sampling was carried out between March and April 2018, based on 5 different detection methods. The main objective was to evaluate the presence and current distribution of the mammal species cited in the area since 1900. Of the 16 species historically cited, 9 have been detected in the present work, which represents 56.2%. The total absence of data on 5 of the potentially most abundant species such as Gerbillus amoenus (de Winton, 1902), Gerbillus gerbillus Olivier, 1801, Gerbillus tarabuli (Thomas, 1902), Pachyuromis duprasi Lataste, 1880 and Psammomys obesus Cretzschmar, 1828 is remarkable. Some data point to the drastic reduction of water resources experienced in recent years, as one of the causes of the apparent reduction of their populations. At the same time, other species with lower water requirement , such as Meriones libycus Lichtentstein, 1823 or Jaculus jaculus Linnaeus, 1758, have an apparent good state of conservation. The presence of Poecilictis libyca Hemprich & Ehrenberg, 1833 is confirmed after 32 years without being cited.El progresivo aumento del turismo de aventura en el entorno de las dunas de Erg Chebbi, amenaza, desde hace casi dos décadas, la conservación del único complejo dunar (Erg) de todo Marruecos. Con el propósito de valorar algunos de los efectos de esta actividad sobre la comunidad de mamíferos locales, entre marzo y abril de 2018 se llevó a cabo un muestreo intensivo utilizando 5 métodos de detección distintos. El objeto principal era evaluar la presencia y distribución actual de las especies de mamíferos presentes, teniendo como referencia las citadas en la zona desde 1900 (Aulagnier et al., 2017). De las 16 especies históricamente citadas, 9 han sido detectadas en el presente trabajo, lo que representa un 56.2%. Resulta de interés la ausencia total de datos sobre 5 de las especies potencialmente más abundantes como son: Gerbillus amoenus (de Winton, 1902), Gerbillus gerbillus Olivier, 1801, Gerbillus tarabuli (Thomas, 1902), Pachyuromis duprasi Lataste, 1880 y Psammomys obesus Cretzschmar, 1828. Algunos datos apuntan a la drástica reducción de los recursos hídricos experimentada en los últimos años, como una de las causas de la aparente reducción de sus poblaciones. Al mismo tiempo, otras especies de requerimiento hídricos menores, tales como: Meriones libycus Lichtenstein, 1823 o Jaculus jaculus Linnaeus, 1758, presentan un aparente buen estado de conservación. Se confirma la presencia de Poecilictis libyca Hemprich & Ehrenberg, 1833, tras 32 años de ausencia de datos

    Catálogo y distribución geográfica de los Odonatos en la Región de Murcia (SE España).

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    Se actualiza el catálogo y la distribución del orden Odonata en la Región de Murcia, comparándolo a uno anterior realizado en los años 50 del siglo XX. Los resultados indican que a mitad del siglo pasado se localizaron 40 especies en 17 localidades, mientras que las 2.087 citas recopiladas entre 1991-2017 confirman la presencia de 47 especies en 191 localidades. Se han identificado 11 nuevas especies para la Región de Murcia, que se pueden haber visto favorecidas por la construcción de charcas, embalses y otras infraestructuras para abastecer a las 225.000 ha de regadíos. De ellas, 9 especies se están expandiendo su área de distribución hacia el norte de Europa y/o Asia, efecto que podría estar relacionado con el proceso de cambio climático actual. Por el contrario, en la revisión actual no han sido detectadas 4 especies citadas en el estudio realizado a mediados del siglo XX

    Low exposure long-baseline neutrino oscillation sensitivity of the DUNE experiment

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    The Deep Underground Neutrino Experiment (DUNE) will produce world-leading neutrino oscillation measurements over the lifetime of the experiment. In this work, we explore DUNE's sensitivity to observe charge-parity violation (CPV) in the neutrino sector, and to resolve the mass ordering, for exposures of up to 100 kiloton-megawatt-years (kt-MW-yr). The analysis includes detailed uncertainties on the flux prediction, the neutrino interaction model, and detector effects. We demonstrate that DUNE will be able to unambiguously resolve the neutrino mass ordering at a 3σ\sigma (5σ\sigma) level, with a 66 (100) kt-MW-yr far detector exposure, and has the ability to make strong statements at significantly shorter exposures depending on the true value of other oscillation parameters. We also show that DUNE has the potential to make a robust measurement of CPV at a 3σ\sigma level with a 100 kt-MW-yr exposure for the maximally CP-violating values \delta_{\rm CP}} = \pm\pi/2. Additionally, the dependence of DUNE's sensitivity on the exposure taken in neutrino-enhanced and antineutrino-enhanced running is discussed. An equal fraction of exposure taken in each beam mode is found to be close to optimal when considered over the entire space of interest
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