122 research outputs found

    Total Prompt Energy Release in the Neutron-Induced Fission of 235-U, 238-U, and 239-Pu

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    This study addresses, for the first time, the total prompt energy release and its components for the fission of 235-U, 238-U, and 239-Pu as a function of the kinetic energy of the neutron inducing the fission. The components are extracted from experimental measurements, where they exist, together with model-dependent calculation, interpolation, and extrapolation. While the components display clear dependencies upon the incident neutron energy, their sums display only weak, yet definite, energy dependencies. Also addressed is the total prompt energy deposition in fission for the same three systems. Results are presented in equation form. New measurements are recommended as a consequence of this study.Comment: Accepted for publication in Nuclear Physics

    Study of fission using multi-nucleon transfer reactions

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    Multi-nucleon transfer channels of the reactions of 18O+232Th, 18O+238U, 18O+248Cm were used to measure fission-fragment mass distribution for various nuclides and their excitation energy dependence. Predominantly asymmetric fission is observed at low excitation energies for all the studied cases, with an increase of the symmetric fission towards high excitation energies. Experimental data are compared with predictions of the fluctuation-dissipation model, where effects of multi-chance fission (neutron evaporation prior to fission) was introduced. It was shown that a reliable understanding of the observed fission fragment mass distributions can be obtained only invoking multi-chance fissions

    PROJETO INTEGRADOR EM UMA EMPRESA INDUSTRIAL DE FABRICAÇÃO DE COSMÉTICOS, PERFUMARIA E HIGIENE PESSOAL

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    Segundo a Associação Brasileira da Indústria de Higiene Pessoal, Perfumaria e Cosméticos (ABIHPEC), o setor foi um dos que mais cresceu, e mesmo na pandemia do COVI-19, a demanda por produtos de bem-estar e cuidados pessoais aumentou significativamente. Após uma análise a partir das ferramentas Matriz SWOT e Diagrama de Ishikawa, foram levantados os pontos fracos da empresa e diagnosticado que o principal problema estava relacionado a falta de comunicação entre os setores. Com a identificação do problema principal, foi definido o objetivo geral do projeto integrador: Desenvolver maior integração entre os setores para melhorar a produtividade nas atividades exercidas em cada setor. E para atingir este objetivo, foram estabelecidos os seguintes objetivos específicos: 1) Elaborar um plano de padronização dos processos para a orientação dos setores. 2) Fornecer treinamento para o desenvolvimento dos funcionários. Para atender os objetivos específicos, foram criados planos de ações, fazendo uso da ferramenta 5W+2H, assim como a elaboração de um cronograma para a implementação dos planos de ações. A partir do levantamento de todas as ações necessárias, está sendo realizado as estimativas de custos, para análise da viabilidade do Projeto Integrador, a fim de verificar se o resultado financeiro da implementação das ações é positivo ou negativo. Em caso de resultado negativo, será realizada uma nova análise para escolher as principais ações, através da Matriz GUT, para determinar as ações que serão implementadas, que trarão tanto um resultado financeiro positivo, quanto a melhoria na comunicação interna que possibilitará ganhos qualitativos não mensurados neste projeto Integrador

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

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    Abstract: 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

    Saving Lives in Auschwitz: The Prisoners’ Hospital in Buna-MonowitzEwa K Bacon

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    XXXIII. Jahresbericht über das städtische Progymnasium mit Realabteilungen zu Schlawe für das Schuljahr 1904 /

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    Inhalt: 1. Tennyson's "Lucretius", Erklärung des Gedichtes, Verhältnis zu dem lateinischen Lehrgedicth "de rerum natur" des Lucretius, von Oberlehrer Straede -- 2. Schulnachrichten vom Director.Mode of access: Internet

    Tennyson's "Lucretius" [microform] : Erklärung des Gedichtes, Verhältnis zu dem lateinischen Lehregedicht "De rerum natura" des Lucretius /

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    Filmed with 72 other items from the Dittenberger-Vahlen collection of German dissertations and Programmschriften on classical studies."XXXIII. Jahresbericht über das städtische Progymnasium mit Realabteilungen zu Schlawe für das Schuljahr 1904"Includes bibliographical references.Microfilm.Mode of access: Internet
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