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排序方式: 共有292条查询结果,搜索用时 93 毫秒
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Paul S.F. Yip Liqun Xi Richard Arnold Yu Hayakawa 《Australian & New Zealand Journal of Statistics》2005,47(3):299-308
This paper compares the properties of various estimators for a beta‐binomial model for estimating the size of a heterogeneous population. It is found that maximum likelihood and conditional maximum likelihood estimators perform well for a large population with a large capture proportion. The jackknife and the sample coverage estimators are biased for low capture probabilities. The performance of the martingale estimator is satisfactory, but it requires full capture histories. The Gibbs sampler and Metropolis‐Hastings algorithm provide reasonable posterior estimates for informative priors. 相似文献
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Arnold Zellner Franz C. Palm 《Econometrica : journal of the Econometric Society》2000,68(5):1293-1293
226.
The gap between career management expectations and reality – empirical insights from the IT industry
The Information Technology (IT) industry has become an important economic factor in many Western countries, but it is well known for suffering from skills shortages and high turnover rates. Organizational career management (OCM) may help to attract new talent and reduce IT turnover by satisfying individuals’ career needs. However, to date, little is known about what, exactly, IT professionals expect in terms of career-related support, and whether their expectations match with what IT organizations provide. This paper reports on a quantitative study that investigated what 1686 IT professionals in Switzerland, Germany and the UK expected and what their employers provided in terms of OCM. Findings indicate that there are substantial mismatches between OCM ‘supply’ and ‘demand’. The paper makes an important contribution by providing a more in-depth understanding of IT professionals’ OCM preferences, leading to various practical implications for IT organizations and beyond. 相似文献
227.
ABSTRACT The effects of a package intervention including prompts, goal setting, feedback, education, and behavioral self-monitoring to increase following headway (decrease tailgating) of three young drivers were evaluated in a simulated driving environment. Another objective of the present study was to determine if the effects of the package intervention would maintain in the simulator and transfer to real-world driving by assessing driving behavior recorded using a black box video camera in the participants’ vehicles. During intervention, drivers were prompted to increase following headway and were provided a specific target for following headway. The participants were asked to estimate following headway after each session and when the session ended were given feedback on actual following headway. The introduction of the treatment package in the simulator was associated with an increase in following headway for all participants. During the reversal phase maintenance occurred for all participants. The effects transferred to real-world driving for all participants. Teaching young drivers in a simulator to increase following headway may be one strategy to decrease the risk of crashes. 相似文献
228.
Kolbe Sarah E. Miller Arnold I. Cameron Guy N. Culley Theresa M. 《Urban Ecosystems》2016,19(2):915-938
Urban Ecosystems - Unprecedented population growth and urban expansion are rapidly transforming natural and agricultural settings into highly modified urban and suburban landscapes in developed... 相似文献
229.
Ben Arnold Lohmeyer 《Journal of youth studies》2017,20(10):1263-1276
The effects of neoliberalism on young people and youth workers through outsourcing government services has attracted critique from multiple sources. Post-structural analysis interrogates subjectification effects of these policies on youth. However, this kind of analysis of the governmental formation of youth ought to consider the interaction between the knowledge of youth underpinning neoliberal social policy, and those employed by non-government agencies implementing them. The interaction between these two shape the reciprocal governing activity within the young person and youth worker power–knowledge relationship that, this paper will argue, is an important factor in the critique of neoliberal social policy. Young people are governed by a diverse array of knowledges developed by government, youth studies, NGOs and young people themselves. These knowledges interact, reinforce and contradict discourses of youth work. This paper focuses on a neoliberal social policy (FLO) which constructs youth as a surplus population in need of risk management, and youth workers as the producers of young workers. Furthermore, I will consider the interfering subjectification effects produced by an intake and assessment tool (Your Story) utilised by a non-government FLO provider. These discourses underpinning Your Story and FLO render young people and their workers as relational beings or economic citizens respectively. 相似文献
230.
Arnold H. Grossman John A. Frank Matthew J. Graziano David R. Narozniak Gregory Mendelson Danny El Hassan 《Journal of homosexuality》2014,61(12):1649-1666
This study examined harm, hurt, and neglect by caregivers as well as self-neglect and physical and mental health status among 113 lesbian, gay, and bisexual (LGB) older adults aged 60–88 years, who attended community-based social and recreation programs or groups in the United States. Reporting on their experiences with caregivers, 22.1% of the participants experienced at least one type of harm, including physical, emotional, verbal, sexual, financial, and neglectful; additionally, 25.7% of the participants reported they knew LGB older adults who experienced at least one type of harm from his or her caregiver. With regard to self-neglect, 62.8% reported experiencing it; those indicating positive psychological health reported fewer experiences with self-neglect. 相似文献