42 research outputs found

    Neutron-Unbound Excited States of 23N

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    Neutron unbound states in 23N were populated via proton knockout from an 83.4 MeV/nucleon 24O beam on a liquid deuterium target. The two-body decay energy displays two peaks at E1∼100keV and E2∼1MeV with respect to the neutron separation energy. The data are consistent with shell model calculations predicting resonances at excitation energies of ∼3.6MeV and ∼4.5MeV. The selectivity of the reaction implies that these states correspond to the first and second 3/2− states. The energy of the first state is about 1.3 MeV lower than the first excited 2+ in 24O. This decrease is largely due to coupling with the πp−13/2 hole along with a small reduction of the N=16 shell gap in 23N

    Two-Neutron Sequential Decay of 24^{24}O

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    A two-neutron unbound excited state of 24^{24}O was populated through a (d,d') reaction at 83.4 MeV/nucleon. A state at E=715±110E = 715 \pm 110 (stat) ±45\pm 45 (sys) keV with a width of Γ<2\Gamma < 2 MeV was observed above the two-neutron separation energy placing it at 7.65 ±\pm 0.2 MeV with respect to the ground state. Three-body correlations for the decay of 24^{24}O →\rightarrow 22^{22}O + 2n2n show clear evidence for a sequential decay through an intermediate state in 23^{23}O. Neither a di-neutron nor phase-space model for the three-body breakup were able to describe these correlations

    A Modified Delphi Study to Prioritize Content for a Simulation-based Pediatric Curriculum for Emergency Medicine Residency Training Programs

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    © 2019 by the Society for Academic Emergency Medicine Objectives: Pediatric training is an essential component of emergency medicine (EM) residency. The heterogeneity of pediatric experiences poses a significant challenge to training programs. A national simulation curriculum can assist in providing a standardized foundation of pediatric training experience to all EM trainees. Previously, a consensus-derived set of content for a pediatric curriculum for EM was published. This study aimed to prioritize that content to establish a pediatric simulation-based curriculum for all EM residency programs. Methods: Seventy-three participants were recruited to participate in a three-round modified Delphi project from 10 stakeholder organizations. In round 1, participants ranked 275 content items from a published set of pediatric curricular items for EM residents into one of four categories: definitely must, probably should, possibly could, or should not be taught using simulation in all residency programs. Additionally, in round 1 participants were asked to contribute additional items. These items were then added to the survey in round 2. In round 2, participants were provided the ratings of the entire panel and asked to rerank the items. Round 3 involved participants dichotomously rating the items. Results: A total of 73 participants participated and 98% completed all three rounds. Round 1 resulted in 61 items rated as definitely must, 72 as probably should, 56 as possibly could, 17 as should not, and 99 new items were suggested. Round 2 resulted in 52 items rated as definitely must, 91 as probably should, 120 as possibly could, and 42 as should not. Round 3 resulted in 56 items rated as definitely must be taught using simulation in all programs. Conclusions: The completed modified Delphi process developed a consensus on 56 pediatric items that definitely must be taught using simulation in all EM residency programs (20 resuscitation, nine nonresuscitation, and 26 skills). These data will serve as a targeted needs assessment to inform the development of a standard pediatric simulation curriculum for all EM residency programs

    Calculator programmed assistance in making cell cultures

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    The role of smart cards in the Department of Defense's future health care information system

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    Boston University. University Professors Program Senior theses.PLEASE NOTE: Boston University Libraries did not receive an Authorization To Manage form for this thesis. It is therefore not openly accessible, though it may be available by request. If you are the author or principal advisor of this work and would like to request open access for it, please contact us at [email protected]. Thank you.2031-01-0

    Commercial Leisure Services: Managing for Profit, Service, and Personal Satisfaction

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    https://scholarworks.uni.edu/facbook/1217/thumbnail.jp

    Letters to the editor

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    First human treatment with investigational rhGUS enzyme replacement therapy in an advanced stage MPS VII patient

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    Mucopolysaccharidosis type VII (MPS VII, Sly syndrome) is a very rare lysosomal storage disease caused by a deficiency of the enzyme beta-glucuronidase (GUS), which is required for the degradation of three glycosaminoglycans (GAGs): dermatan sulfate, heparan sulfate, and chondroitin sulfate. Progressive accumulation of these GAGs in lysosomes leads to increasing dysfunction in numerous tissues and organs. Enzyme replacement therapy (ERT) has been used successfully for other MPS disorders, but there is no approved treatment for MPS VII. Here we describe the first human treatment with recombinant human GUS (rhGUS), an investigational therapy for MPS VII, in a 12-year old boy with advanced stage MPS VII. Despite a tracheostomy, nocturnal continuous positive airway pressure, and oxygen therapy, significant pulmonary restriction and obstruction led to oxygen dependence and end-tidal carbon dioxide (ETCO2) levels in the 60-80mmHg range, eventually approaching respiratory failure (ETCO2 of 100mmHg) and the need for full-time ventilation. Since no additional medical measures could improve his function, we implemented experimental ERT by infusing rhGUS at 2mg/kg over 4h every 2weeks for 24weeks. Safety was evaluated by standard assessments and observance for any infusion associated reactions (IARs). Urinary GAG (uGAG) levels, pulmonary function, oxygen dependence, CO2 levels, cardiac valve function, liver and spleen size, and growth velocity were assessed to evaluate response to therapy. rhGUS infusions were well tolerated. No serious adverse events (SAEs) or IARs were observed. After initiation of rhGUS infusions, the patient\u27s uGAG excretion decreased by more than 50%. Liver and spleen size were reduced within 2weeks of the first infusion and reached normal size by 24weeks. Pulmonary function appeared to improve during the course of treatment based on reduced changes in ETCO2 after off-ventilator challenges and a reduced oxygen requirement. The patient regained the ability to eat orally, gained weight, and his energy and activity levels increased. Over 24weeks, treatment with every-other-week infusions of rhGUS was well tolerated with no SAEs, IARs, or hypersensitivity reactions and was associated with measurable improvement in objective clinical measures and quality of life
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