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Abstract

Objective: Develop a tool to ease the burden of H1N1 influenza on a campus clinic by promoting self-care, generating medical notes, and identifying vulnerable students. Participants: Students at Brock University, a mid-sized urban campus; Brock's Student Health Services; and Niagara Public Health. Methods: Students accessed a controlled portal of Brock's Web site and self-identified onset/offset of influenza-like symptoms. Daily sign-in numbers were monitored and nonidentifiable aggregate data transferred to the local public health unit. Results: There was concordance among the number of college students signing in, local school absenteeism rates, and local rates of laboratory-confirmed influenza. Many visits to the campus health clinic were averted, 1,432 students used the tool. Conclusion: The online, real-time surveillance tool was effective in monitoring influenza activity on campus, providing timely health advice, decreasing unnecessary visits to the campus medical clinic, and assisting local public health in surveillance activities.  相似文献   
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作为一个宗旨驱动型组织,非营利组织主要依靠其员工来提供服务并满足组织利益相关者的期望与需求。然而,基于何种动机个体才会选择到非营利组织而不是营利或公共组织从业呢?对此问题的理解要比非营利组织为了从数量和质量上招募到理想员工而采取何种竞争战略更为优先。与营利部门和公共部门不同,非营利部门有其独特的员工及其服务动机谱系,利他主义也只能代表非营利部门的其中一面。相对于诸多学者所使用的“内因-外因”传统两分法分析框架,从员工在非营利部门从业的服务约束性(积极性/被动性)和服务导向性(利他性/利己性)维度构建的非营利部门员工从业动机矩阵将员工从业动机分为四种类型,这将有助于我们理解员工显性从业选择行为下实际的隐性需求,并可成为未来实证分析的基础。  相似文献   
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This paper seeks to refocus the attention of environmentalists on the importance of population trends to environmental sustainability and identifies prevention of unintended pregnancy as potential common ground for environmentalists and family planning advocates. The health and other welfare benefits of preventing unintended pregnancy are felt most keenly by individual women, men, and their families. At the same time, however, preventing unwanted pregnancies usually results in smaller family size, an important factor in slowing population growth and, as a result, a source of broader benefits—including environmental benefits—to society.  相似文献   
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In 2001, the U.S. Environmental Protection Agency derived a reference dose (RfD) for methylmercury, which is a daily intake that is likely to be without appreciable risk of deleterious effects during a lifetime. This derivation used a series of benchmark dose (BMD) analyses provided by a National Research Council (NRC) panel convened to assess the health effects of methylmercury. Analyses were performed for a number of endpoints from three large longitudinal cohort studies of the neuropsychological consequences of in utero exposure to methylmercury: the Faroe Islands, Seychelles Islands, and New Zealand studies. Adverse effects were identified in the Faroe Islands and New Zealand studies, but not in the Seychelles Islands. The NRC also performed an integrative analysis of all three studies. The EPA applied a total uncertainty factor (UF) of 10 for intrahuman toxicokinetic and toxicodynamic variability and uncertainty. Dose conversion from cord blood mercury concentrations to maternal methylmercury intake was performed using a one-compartment model. Derivation of potential RfDs from a number of endpoints from the Faroe Islands study converged on 0.1 microg/kg/day, as did the integrative analysis of all three studies. EPA identified several areas for which further information or analyses is needed. Perhaps the most immediately relevant is the ratio of cord:maternal blood mercury concentration, as well as the variability around this ratio. EPA assumed in its dose conversion that the ratio was 1.0; however, available data suggest it is perhaps 1.5-2.0. Verification of a deviation from unity presumably would be translated directly into comparable reduction in the RfD. Other areas that EPA identified as significant areas requiring further attention are cardiovascular consequences of methylmercury exposure and delayed neurotoxicity during aging as a result of previous developmental or adult exposure.  相似文献   
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Three models of risk were examined for 277 African American children from single‐mother‐headed homes: cumulative, additive, and indirect models. Risk factors were mother‐reported community risks, inadequate income, maternal depressive symptoms, and inadequate parenting. Child‐reported internalizing and externalizing difficulties served as dependent measures of adjustment. Whereas the cumulative risk model identified a subset of children within this group as at‐risk for adjustment difficulties, only more proximal family variables (maternal depressive symptoms and inadequate parenting) accounted for unique variance in child outcomes (additive risk model). However, the more distal risk factors—community risk and inadequate income—were linked to both internalizing and externalizing difficulties through the proximal family variables (indirect effects model).  相似文献   
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