2,106 research outputs found

    The Morality of Heart Transplants: A Debate

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    Over a year has passed since the first heart transplant was accomplished, and in that short year, many questions concerning ethics, law, and theology have come forth to be debated. So many questions exist that a very exhaustive study would be needed; however, three main considerations will give a basic understanding of the implications of heart transplants. The Religion and Philosophy Honors Seminar has been exploring heart transplants this past semester. This paper is a summary of the three main issues concerning heart transplants with emphasis upon the theological and philosophical implications involved

    Mental health related contact with education professionals in the British Child and Adolescent Mental Health Survey 2004

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    Purpose – The purpose of this paper is to describe mental health-related contact with educational professionals amongst children in the British Child and Adolescent Mental Health Survey (BCAMHS) 2004. Design/methodology/approach – BCAMHS 2004 was a community-based survey of 5,325 children aged 5-16, with follow-up in 2007. This paper reports the percentage of children with a psychiatric disorder that had mental health-related contact with education professionals (categorised as teachers or specialist education services) and the percentage with specific types of psychiatric disorders amongst those contacting services. Findings – Two-thirds (66.1 per cent, 95 per cent CI: 62.4-69.8 per cent) of children with a psychiatric disorder had contact with a teacher regarding their mental health and 31.1 per cent (95 per cent CI: 27.5-34.7 per cent) had contact with special education either in 2004 or 2007, or both. Over half of children reporting special education contact (55.1 per cent, 95 per cent CI: 50.0-60.2 per cent) and almost a third reporting teacher contact in relation to mental health (32.1 per cent, 95 per cent CI: 29.7-34.6 per cent) met criteria for a psychiatric disorder. Practical implications – Many children in contact with education professionals regarding mental health experienced clinical levels of difficulty. Training is needed to ensure that contact leads to prompt intervention and referral if necessary. Originality/value – This is the first paper to report on mental health-related service contact with education professionals in the 2004 BCAMHS survey along with its 2007 follow-up. It identifies high levels of teacher contact which represent challenges in supporting staff with training, resources and access to mental health services.National Institute for Health Research - Doctoral Research FellowshipNational Institute for Health Research (NIHR) Collaboration for Leadership in Applied Health Research and Care (CLAHRC) for the South West Peninsula at Royal Devon and Exeter NHS Foundation Trus

    The role of menopause and reproductive senescence in a long-lived social mammal

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    <p>Abstract</p> <p>Background</p> <p>Menopause is a seemingly maladaptive life-history trait that is found in many long-lived mammals. There are two competing evolutionary hypotheses for this phenomenon; in the adaptive view of menopause, the cessation of reproduction may increase the fitness of older females; in the non-adaptive view, menopause may be explained by physiological deterioration with age. The decline and eventual cessation of reproduction has been documented in a number of mammalian species, however the evolutionary cause of this trait is unknown.</p> <p>Results</p> <p>We examined a unique 30-year time series of killer whales, tracking the reproductive performance of individuals through time. Killer whales are extremely long-lived, and may have the longest documented post-reproductive lifespan of any mammal, including humans. We found no strong support for either of the adaptive hypotheses of menopause; there was little support for the presence of post-reproductive females benefitting their daughter's reproductive performance (interbirth interval and reproductive lifespan of daughters), or the number of mature recruits to the population. Oldest mothers (> 35) did appear to have a small positive impact on calf survival, suggesting that females may gain experience with age. There was mixed support for the grandmother hypothesis – grandoffspring survival probabilities were not influenced by living grandmothers, but grandmothers may positively influence survival of juveniles at a critical life stage.</p> <p>Conclusion</p> <p>Although existing data do not allow us to examine evolutionary tradeoffs between survival and reproduction for this species, we were able to examine the effect of maternal age on offspring survival. Our results are consistent with similar studies of other mammals – oldest mothers appear to be better mothers, producing calves with higher survival rates. Studies of juvenile survival in humans have reported positive benefits of grandmothers on newly weaned infants; our results indicate that 3-year old killer whales may experience a positive benefit from helpful grandmothers. While our research provides little support for menopause evolving to provide fitness benefits to mothers or grandmothers, our work supports previous research showing that menopause and long post-reproductive lifespans are not a human phenomenon.</p

    School exclusion in children with psychiatric disorder or impairing psychopathology: a systematic review

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    This is an Accepted Manuscript of an article published by Taylor & Francis in Emotional and Behavioural Difficulties on 20 August 2014, available online: http://wwww.tandfonline.com/10.1080/13632752.2014.945741Childhood psychiatric disorders are associated with a wide range of adverse outcomes including poor academic attainment. For some children these difficulties are recognised through school Special Educational Need procedures (SEN) but many others may remain unidentified and/or unsupported. In Britain, government data suggests disproportionate representation of children with a SEN among children permanently excluded from school. This review asks whether school-aged children with impairing psychopathology were more likely to be excluded from school than those without. Databases covering education, social sciences, psychology and medicine were searched, experts were contacted and bibliographies of key papers were hand-searched. Studies were included if the population covered school-aged children, and if validated diagnostic measures had been used to assess psychopathology. Children with impairing psychopathology had greater odds of exclusion compared to the rest of the school-age population: odds ratios range from 1.13 (95% CI: 0.55–2.33) to 45.6 (95% CI: 3.8–21.3). These findings however need to be considered in light of the paucity of the literature and methodological weaknesses discussed.National Institute for Health Research (NIHR) Collaboration for Leadership in Applied Health Research and Care (CLAHRC) for the South West Peninsula

    Herbicide Evaluation in Arkansas Rice 2000

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    With the widespread development of resistance to propanil by barnyardgrass, the major weed in rice, research has been intensified in recent years to develop alternative weed control technology to the repeated use of propanil. The use of herbicides is economically important for production of rice. Field experiments are conducted annually in Arkansas to evaluate the activity of developmental and commercial herbicides for selective control of barnyardgrass and other weeds in rice. These experiments serve both industry and Arkansas agriculture by providing information on the selectivity of herbicides still in the developmental stage and by comparing the activity of these new herbicides with that of recommended herbicides

    Physical Activity, Physical Well-Being, and Psychological Well-Being: Associations with Life Satisfaction during the COVID-19 Pandemic among Early Childhood Educators

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    Seeking personal well-being and life satisfaction during a global pandemic can be daunting, such is the case for early care and education teachers who were considered non-health care essential workers during the COVID-19 pandemic. The potential changes in their physical activity, along with their overall physical and psychological well-being, may have ultimately influenced their life satisfaction. These changes included the potential for increased sedentary behaviors. Despite the high health risks associated with these factors during the pandemic, the role of physical activity in early care and education teachers’ well-being and life satisfaction remains largely unknown. The purpose of this study is to examine the associations of physical activity and sedentary behaviors with teacher well-being and life satisfaction during the COVID-19 pandemic. In doing so, we explored two competing models of the relationship between the teachers’ physical activity, well-being, and life satisfaction, one with physical activity as a mediator and the other with teachers’ well-being as a mediator. An online survey, that collected information on physical, psychological, and professional well-being, job demands, and life satisfaction, was completed by 1434 US ECE teachers in 46 states. To test our hypothesized models, we conducted confirmatory factor analyses, followed by structural equation modeling. Of the respondents, 77% were overweight or obese and only 39% met the recommended 150 min of moderate physical activity per week. They had a mean life satisfaction score that qualifies as slight satisfaction, they experience moderate stress, and, collectively, are approaching the threshold for depression yet still reflect moderate-to-high work commitment. The empirical test of our competing mediation models found the model where teacher well-being mediated the association between physical activity, sedentary behavior, and life satisfaction was the superior model. The relationships between physical activity, sedentary behavior, and overall well-being suggest that these modifiable risk factors can be addressed such that early care and education teachers can improve their overall physical and psychological well-being, along with their life satisfaction

    DNA barcoding reveals a new morphotype of the sugar kelp, Saccharina latissima

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    Phytoplankton blooms follow predictable annual cycles in the Gulf of Maine, characterized by a large spring bloom and a smaller bloom in the fall. Marine phytoplankton form the foundation of primary production in Gulf of Maine waters, and thus community changes in composition, and abundance could have cascading effects on our coastal ecosystems. We set out to monitor the community composition, diversity, and abundance of the spring micro-phytoplankton bloom, at a Friends of Casco Bay water quality monitoring site, in South Portland, Maine. The Gulf of Maine is experiencing accelerated warming rates, and this type of monitoring can aid in our understanding of what this warming trend may mean for our waters

    End-user involvement in a systematic review of quantitative and qualitative research of non-pharmacological interventions for attention deficit hyperactivity disorder delivered in school settings: reflections on the impacts and challenges.

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    JOURNAL ARTICLEBACKGROUND: The benefits of end-user involvement in health-care research are widely recognized by research agencies. There are few published evaluations of end-user involvement in systematic reviews. OBJECTIVES: (i) Describe end-user involvement in a complex mixed-methods systematic review of ADHD in schools, (ii) reflect on the impact of end-user involvement, (iii) highlight challenges and benefits experienced and (iv) provide suggestions to inform future involvement. METHODS: End-users were involved in all stages of the project, both as authors and as members of an advisory group. In addition, several events were held with groups of relevant end-users during the project. RESULTS: End-user input (i) guided the direction of the research, (ii) contributed to a typology of interventions and outcomes, (iii) contributed to the direction of data analysis and (iv) contributed to the robustness of the syntheses by demonstrating the alignment of interim findings with lived experiences. Challenges included (i) managing expectations, (ii) managing the intensity of emotion, (iii) ensuring that involvement was fruitful for all not just the researcher, (iv) our capacity to communicate and manage the process and (v) engendering a sense of involvement amongst end-users. CONCLUSIONS: End-user involvement was an important aspect of this project. To minimize challenges in future projects, a recognition by the project management team and the funding provider that end-user involvement even in evidence synthesis projects is resource intensive is essential to allow appropriate allocation of time and resources for meaningful engagement.NIHR HTA programmeNIHRExeter NHS Foundation Trus

    Non-pharmacological interventions for ADHD in school settings: an overarching synthesis of systematic reviews

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    OBJECTIVE: This overarching synthesis brings together the findings of four systematic reviews including 138 studies focused on non-pharmacological interventions for ADHD used in school settings. These reviews considered the effectiveness of school-based interventions for ADHD, attitudes toward and experience of school-based interventions for ADHD, and the experience of ADHD in school settings. METHOD: We developed novel methods to compare the findings across these reviews inductively and deductively. RESULTS: Key contextual issues that may influence the effectiveness and implementation of interventions include the relationships that pupils with ADHD have with their teachers and peers, the attributions individuals make about the etiology of ADHD, and stigma related to ADHD or intervention attendance. CONCLUSION: Although we found some positive effects for some outcomes and intervention categories, heterogeneity in effect size estimates and research evidence suggests a range of diverse contextual factors potentially moderate the implementation and effectiveness of school-based interventions for ADHD.National Institute for Health Research Health Technology Assessment (NIHR HTA) programNIHR Collaboration for Leadership in Applied HealthResearch and Care South West Peninsula (PenCLAHRC

    Naked Singularity Explosion

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    It is known that the gravitational collapse of a dust ball results in naked singularity formation from an initial density profile which is physically reasonable. In this paper, we show that explosive radiation is emitted during the formation process of the naked singularity.Comment: 6 pages, 3 figures, Accepted for Publication in Phys. Rev. D as a Rapid Communicatio
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