36 research outputs found

    Risks to pollinators and pollination from invasive alien species

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    Invasive alien species modify pollinator biodiversity and the services they provide that underpin ecosystem function and human well-being. Building on the Intergovernmental Science-Policy Platform for Biodiversity and Ecosystem Services (IPBES) global assessment of pollinators and pollination, we synthesize current understanding of invasive alien impacts on pollinators and pollination. Invasive alien species create risks and opportunities for pollinator nutrition, re-organize species interactions to affect native pollination and community stability, and spread and select for virulent diseases. Risks are complex but substantial, and depend greatly on the ecological function and evolutionary history of both the invader and the recipient ecosystem. We highlight evolutionary implications for pollination from invasive alien species, and identify future research directions, key messages and options for decision-making

    The DUNE Far Detector Interim Design Report, Volume 3: Dual-Phase Module

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    The DUNE IDR describes the proposed physics program and technical designs of the DUNE far detector modules in preparation for the full TDR to be published in 2019. It is intended as an intermediate milestone on the path to a full TDR, justifying the technical choices that flow down from the high-level physics goals through requirements at all levels of the Project. These design choices will enable the DUNE experiment to make the ground-breaking discoveries that will help to answer fundamental physics questions. Volume 3 describes the dual-phase module's subsystems, the technical coordination required for its design, construction, installation, and integration, and its organizational structure

    The DUNE Far Detector Interim Design Report, Volume 2: Single-Phase Module

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    The DUNE IDR describes the proposed physics program and technical designs of the DUNE far detector modules in preparation for the full TDR to be published in 2019. It is intended as an intermediate milestone on the path to a full TDR, justifying the technical choices that flow down from the high-level physics goals through requirements at all levels of the Project. These design choices will enable the DUNE experiment to make the ground-breaking discoveries that will help to answer fundamental physics questions. Volume 2 describes the single-phase module's subsystems, the technical coordination required for its design, construction, installation, and integration, and its organizational structure

    The DUNE Far Detector Interim Design Report Volume 1: Physics, Technology and Strategies

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    The DUNE IDR describes the proposed physics program and technical designs of the DUNE Far Detector modules in preparation for the full TDR to be published in 2019. It is intended as an intermediate milestone on the path to a full TDR, justifying the technical choices that flow down from the high-level physics goals through requirements at all levels of the Project. These design choices will enable the DUNE experiment to make the ground-breaking discoveries that will help to answer fundamental physics questions. Volume 1 contains an executive summary that describes the general aims of this document. The remainder of this first volume provides a more detailed description of the DUNE physics program that drives the choice of detector technologies. It also includes concise outlines of two overarching systems that have not yet evolved to consortium structures: computing and calibration. Volumes 2 and 3 of this IDR describe, for the single-phase and dual-phase technologies, respectively, each detector module's subsystems, the technical coordination required for its design, construction, installation, and integration, and its organizational structure

    The DUNE Far Detector Interim Design Report Volume 1: Physics, Technology and Strategies

    Get PDF
    The DUNE IDR describes the proposed physics program and technical designs of the DUNE Far Detector modules in preparation for the full TDR to be published in 2019. It is intended as an intermediate milestone on the path to a full TDR, justifying the technical choices that flow down from the high-level physics goals through requirements at all levels of the Project. These design choices will enable the DUNE experiment to make the ground-breaking discoveries that will help to answer fundamental physics questions. Volume 1 contains an executive summary that describes the general aims of this document. The remainder of this first volume provides a more detailed description of the DUNE physics program that drives the choice of detector technologies. It also includes concise outlines of two overarching systems that have not yet evolved to consortium structures: computing and calibration. Volumes 2 and 3 of this IDR describe, for the single-phase and dual-phase technologies, respectively, each detector module's subsystems, the technical coordination required for its design, construction, installation, and integration, and its organizational structure

    Análise da compliância e gradiente timpanométrico em lactentes com refluxo Analysis of compliance and tympanometric gradient in infants with reflux

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    OBJETIVO: Analisar e comparar o gradiente timpanométrico e a compliância obtida nas sondas de 226 Hz e 1 kHz entre os grupos de lactentes com e sem refluxo gastroesofágico. MÉTODOS: Cento e dezoito lactentes a termo e pré-termo, de recém-nascidos a 6 meses de idade - 63 com diagnóstico clínico de refluxo gastroesofágico fisiológico realizado por pediatras ou gastropediatras e 55 sem refluxo -, foram submetidos a timpanometria com sondas de 226 Hz e 1 kHz. RESULTADOS: Foram observados maiores valores de compliância com sonda de 1 kHz em ambos os grupos. Ao se comparar a média de compliância entre os grupos, observou-se que o grupo sem refluxo apresentou maiores valores. A média dos valores do gradiente timpanométrico foi maior no grupo sem refluxo, quando comparada ao grupo com refluxo. CONCLUSÃO: A sonda de 1 kHz apresenta maior compliância em lactentes com e sem refluxo, em relação à sonda de 226 Hz. Lactentes com refluxo apresentam compliância dentro dos padrões de normalidade, porém apresentando menor compliância quando comparados com lactentes sem refluxo. Com relação ao gradiente, lactentes com refluxo apresentam valores alterados e/ou dentro dos padrões limítrofes da normalidade, em ambas as orelhas.<br>PURPOSE: To analyze and compare the tympanometric gradient and the compliance obtained in probe tones of 226 and 1 kHz between groups of infants with and without gastroesophageal reflux (GER). METHODS: Participants were 118 full-term and preterm infants, from newborns to 6-month-olds - 63 with clinical diagnosis of physiological GER performed by pediatricians or gastroenterologists, and 55 without GER -, who were submitted to tympanometry with probe tones of 226 and 1 kHz. RESULTS: Higher compliance values were found with 1 kHz in both groups. Comparing the average compliance between groups, we observed that the group without reflux showed higher values. The mean value of the tympanometric gradient was higher in the group without reflux, when compared to the one with reflux. CONCLUSION: The 1 kHz probe tone has higher compliance in infants with and without GER, when compared to the 226 Hz probe tone. Infants with reflux have compliance within normal limits, although they present lower compliance than infants without reflux. Regarding the gradient, infants with GER have altered values and/or within normality limits in both ears
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