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991.
992.
Stochastic scenario trees are a new and popular method by which surveillance systems can be analyzed to demonstrate freedom from pests and disease. For multiple component systems—such as a combination of a serological survey and systematically collected observations—it can be difficult to represent the complete system in a tree because many branches are required to represent complex conditional relationships. Here we show that many of the branches of some scenario trees have identical outcomes and are therefore redundant. We demonstrate how to prune branches and derive compact representations of scenario trees using matrix algebra and Bayesian belief networks. The Bayesian network representation is particularly useful for calculation and exposition. It therefore provides a firm basis for arguing disease freedom in international forums. 相似文献
993.
景观设计是一个基于科学的解决规划和设计问题的艺术性行业。本文根据Jon Bryan Burley博士2007年秋在南京林业大学为规划与设计专业师生所作的第七次演讲的内容,阐述了科学与艺术之间的平衡。Burley博士通过展示和列举他在中国工作时个人手绘作品及在密歇根所做的计算机辅助视觉质量评估工作的案例,描述了艺术和科学之间的区别、标准化的理论和科学理论之间的区别。Burley博士认为,作为设计师,艺术和科学两种方法缺一不可。随着科技的发展变化,新方法和新技术终将完美结合并被专业所接受。 相似文献
994.
Qualitative research in the UK has revealed a diversity of financial arrangements underlying separate systems of household financial management. One factor, identified in previous work, is perceived ownership of money, with financial practices differing according to whether couples have distinct, blurred or shared ownership perceptions. The present work aims to build on and extend this research, using data from an online survey study with 190 cohabitants in the UK. The findings reveal that ownership perceptions transcend separate money management categories, and can be a significant predictor of the type of contribution cohabitants make towards joint household expenses. 相似文献
995.
We examine differences in the value of statistical life (VSL) across potential wage levels in panel data using quantile regressions
with intercept heterogeneity. Latent heterogeneity is econometrically important and affects the estimated VSL. Our findings
indicate that a reasonable average cost per expected life saved cut-off for health and safety regulations is 7 million to7 million to
8 million per life saved, but the VSL varies considerably across the labor force. Our results reconcile the previous discrepancies
between hedonic VSL estimates and the values implied by theories linked to the coefficient of relative risk aversion. Because the VSL varies elastically with income, regulatory agencies should regularly update the VSL used in benefit assessments,
increasing the VSL proportionally with changes in income over time. 相似文献
996.
997.
Karen J. Buhr 《Journal of Socio》2009,38(1):129-137
The goal of this study is to provide a detailed analysis of the job search decisions of nurses in Canada. The results of this study show that the most important variables influencing the probability of searching for a new job are annual earnings and satisfaction with pay. Socio-economic variables and individual attitudes have an effect for some groups, but these variables are less important. There are differences between women who are and are not currently employed as nurses and this could potentially be a beneficial group to study in terms of policies to recruit and retain nurses in the profession. 相似文献
998.
How is ‘authentic’ linguistic femininity in Japan manifested in popular texts? We analyze the dialogue of female characters in Wakaba, a 2005 Japanese drama set in two very different parts of ‘regional’ Japan – Miyazaki and Kobe. Through this analysis, we examine two contradictory discourses circulated through popular media. The first is that linguistic femininity is based in Standard Japanese – a surprisingly persistent ideology despite a current trend to examine cases in which language ideology and practice do not match. Other studies reflect another dominant discourse, that of the ‘authentic’ dialect speaker, who expresses local alignment by using dialect forms outside the bounds of ideologically modern linguistic forms. The tension between acting linguistically feminine and ‘authentically’ local raises some interesting questions for Japanese language and gender studies, including studies of gendered representations: are women who are speakers of regional dialects authentically ‘feminine’? Can they be? Do some dialects express femininity better than others? 相似文献
999.
Theodore J. Noseworthy Karen Finlay 《Journal of gambling studies / co-sponsored by the National Council on Problem Gambling and Institute for the Study of Gambling and Commercial Gaming》2009,25(3):331-342
This research examined the effects of a casino’s auditory character on estimates of elapsed time while gambling. More specifically,
this study varied whether the sound heard while gambling was ambient casino sound alone or ambient casino sound accompanied
by music. The tempo and volume of both the music and ambient sound were varied to manipulate temporal engagement and introspection.
One hundred and sixty (males = 91) individuals played slot machines in groups of 5–8, after which they provided estimates
of elapsed time. The findings showed that the typical ambient casino auditive environment, which characterizes the majority
of gaming venues, promotes understated estimates of elapsed duration of play. In contrast, when music is introduced into the
ambient casino environment, it appears to provide a cue of interval from which players can more accurately reconstruct elapsed
duration of play. This is particularly the case when the tempo of the music is slow and the volume is high. Moreover, the
confidence with which time estimates are held (as reflected by latency of response) is higher in an auditive environment with
music than in an environment that is comprised of ambient casino sounds alone. Implications for casino management are discussed. 相似文献
1000.
The purpose of this article is to explore the wide spectrum of external influences that affect career decision making across the life span and, in particular, how these factors may directly or indirectly alter one's career trajectory and the extent of one's work volition. Career development practitioners are encouraged to respect externally oriented frameworks, explore the social influence of career choice alternatives faced by clients, encourage clients to voice their emotional responses to external constraints, and use career decision‐making strategies that seek an optimal balance of internal and external influences. 相似文献