15,389 research outputs found

    Partition complexes, duality and integral tree representations

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    We show that the poset of non-trivial partitions of 1,2,...,n has a fundamental homology class with coefficients in a Lie superalgebra. Homological duality then rapidly yields a range of known results concerning the integral representations of the symmetric groups S_n and S_{n+1} on the homology and cohomology of this partially-ordered set.Comment: Published by Algebraic and Geometric Topology at http://www.maths.warwick.ac.uk/agt/AGTVol4/agt-4-41.abs.htm

    Culinary Medicine

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    Culinary Medicine: an innovative way to teach basic culinary skills and nutrition concepts

    Women asylum seekers and refugees: Opportunities, constraints and the role of agency

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    This article is based on the findings of research undertaken towards a doctoral thesis funded by the University of Leeds. The research focuses upon the actions and experiences of women asylum seekers and refugees living inWest Yorkshire. While acknowledging that the context in which women find themselves can present a number of barriers, this paper looks at their actions and practices at the individual and collective levels. It illustrates that some women are able to draw on the resources available, and are engaged in activities that not only assist their own settlement in the host society but also assist the development of support structures for future arrivals of asylum seekers and refugees

    Strong genetic influences on the stability of autistic traits in childhood

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    Objective: Disorders on the autism spectrum, as well as autistic traits in the general population, have been found to be both highly stable across age and highly heritable at individual ages. However, little is known about the overlap in genetic and environmental influences on autistic traits across age and the contribution of such influences to trait stability itself. The present study investigated these questions in a general population sample of twins. Method: More than 6,000 twin pairs were rated on an established scale of autistic traits by their parents at 8, 9, and 12 years of age and by their teachers at 9 and 12 years of age. Data were analyzed using structural equation modeling. Results: The results indicated that, consistently across raters, not only were autistic traits stable, and moderately to highly heritable at individual ages, there was also a high degree of overlap in genetic influences across age. Furthermore, autistic trait stability could largely be accounted for by genetic factors, with the environment unique to each twin playing a minor role. The environment shared by twins had virtually no effect on the longitudinal stability in autistic traits. Conclusions: Autistic traits are highly stable across middle childhood and this stability is caused primarily by genetic factors

    Orientation Effects in Two-Phase Microgap Flow

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    The high power density of emerging electronic devices is driving the transition from remote cooling, which relies on con-duction and spreading, to embedded cooling, which extracts dissipated heat on-site. Two-phase microgap coolers employ the forced flow of dielectric fluids undergoing phase change in a heated channel within or between devices. Such coolers must work reliably in all orientations for a variety of applications (e.g., vehicle-based equipment), as well as in microgravity and high-g for other applications (e.g., spacecraft and aircraft). The lack of acceptable models and correlations for orientation- and gravity-independent operation has limited the use of two-phase coolers in such applications. Previous research has revealed that gravita-tional acceleration plays a diminishing role in establishing flow regimes and transport rates as the channel size shrinks, but there is considerable variation among the proposed microscale criteria and limited research on two-phase flows in low aspect ratio mi-crogap channels. Reliable criteria for achieving orientation- and gravity-independent flow boiling would enable emerging sys-tems to exploit this thermal management technique and streamline the technology development process. As a first step toward understanding the effect of gravity on two-phase microgap flow and transport, in the present effort the authors have studied the effect of evaporator orientation and mass flux on near-saturated flow boiling of HFE7100 in a 1.01 mm tall by 13.0 mm wide by 12.7 mm long microgap channel. Orientation-independence, defined as achieving similar critical heat fluxes, heat transfer coefficients, and flow regimes across evaporator orientations, was achieved for mass fluxes of 400 kg/m2-s and greater. The present results are compared to pub-lished criteria for achieving gravity-independence

    A systematic review and critical appraisal of quality indicators to assess optimal palliative care for older people with dementia

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    © The Author(s) 2019Background: A challenge for commissioners and providers of end-of-life care in dementia is to translate recommendations for good or effective care into quality indicators that inform service development and evaluation. Aim: To identify and critically evaluate quality indicators for end-of-life care in dementia. Results: We found 8657 references, after de-duplication. In all, 19 publications describing 10 new and 3 updated sets of indicators were included in this review. Ultimately, 246 individual indicators were identified as being relevant to dementia end-of-life care and mapped against EAPC guidelines. Conclusions: We systematically derived and assessed a set of quality indicators using a robust framework that provides clear definitions of aspects of palliative care, which are dementia specific, and strengthens the theoretical underpinning of new complex interventions in end-of-life care in dementia.Peer reviewedFinal Published versio

    Cohomology of group theoretic Dehn fillings I: Cohen-Lyndon type theorems

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    This is the first paper of three papers in a row aiming to study cohomology of group theoretic Dehn fillings. In the present paper, we prove a particular free product structure, which is termed the Cohen-Lyndon property, of Dehn filling kernels. As an application, we describe the structure of relative relation modules of Dehn fillings.Comment: 30 pages, 5 figure

    UCANP: Urinary Catheter Alleviation Navigation Protocol Quality Improvement Project

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    Introduction: Catheter associated urinary tract infections (CAUTI) can place significant financial burden on healthcare facilities, decrease quality of care and increase length of stay. Reducing indwelling urinary catheter days reduces the risk of a CAUTI. Current practice after catheter removal includes the reinsertion of the catheter if the patient demonstrates three episodes of urinary retention that requires intermittent urinary catheterization. Intermittent urinary catheterization, when implemented appropriately, has proven to be safe and decreases risk for urinary infection. Background: Several initiatives have been introduced to decrease hospital CAUTI rates, including nursing education on appropriate urine culture collection, use of root cause analysis (RCA) tools to identify problem areas, and nurse driven removal protocols when catheters are no longer indicated. Despite some decreased catheter utilization rates, CAUTIs continued to occur. Data obtained through RCAs revealed a trend of catheter re-insertions due to urinary retention. A nurse driven pathway was developed using bladder scan and straight catheterization protocols with emphasis on not re-inserting catheters. Study Aim: By utilizing an algorithm for monitoring patients after catheter References removal, which includes routine bladder scan assessment and intermittent urinary catheterization if applicable, this study aimed to reduce the incidence of reinsertion of an indwelling catheter. Decreased re-insertion rates contribute to decreased urinary catheter utilization days and decreased risk for CAUTIs. Results: Metrics utilized to determine improvement included indwelling catheter utilization days and CAUTI count. Catheter days is defined as the number of days an indwelling catheter is in place. Each unit was compared to the previous year for the months of September, October, and November. The combined decrease of catheter days for all units was 17%, 23%, and 34% for September, October, and November, respectively. Discussion: Reducing the use of urinary catheters can reduce rates of catheter-associated urinary tract infections and their associated morbidities. Development of one standard protocol, in collaboration with urology provider input, and applying it across a variety of patient populations led to increased utilization of the protocol by the nursing staff. Improvement was also seen in nurses’ awareness and understanding of urinary retention post catheter removal and using bladder scanning and intermittent catheterization appropriately when needed. Due to the initial success of this project, the UCANP initiative is currently being implemented on additional units and will continue until all patient-care areas of the hospital are included.https://scholarlycommons.henryford.com/nursresconf2021/1006/thumbnail.jp
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