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61.
Security of infrastructure is a major concern. Traditional security schedules are unable to provide omnipresent coverage; consequently, adversaries can exploit predictable vulnerabilities to their advantage. Randomized security schedules, which randomly deploy security measures, overcome these limitations, but public perceptions of such schedules have not been examined. In this experiment, participants were asked to make a choice between attending a venue that employed a traditional (i.e., search everyone) or a random (i.e., a probability of being searched) security schedule. The absolute probability of detecting contraband was manipulated (i.e., 1/10, 1/4, 1/2) but equivalent between the two schedule types. In general, participants were indifferent to either security schedule, regardless of the probability of detection. The randomized schedule was deemed more convenient, but the traditional schedule was considered fairer and safer. There were no differences between traditional and random schedule in terms of perceived effectiveness or deterrence. Policy implications for the implementation and utilization of randomized schedules are discussed. 相似文献
62.
Self‐Construal,Career Decision Self‐Efficacy,and Perceived Barriers Predict Mexican American Women's Life Satisfaction 下载免费PDF全文
Brandy Piña‐Watson Natalia Jimenez Lizette Ojeda 《The Career development quarterly》2014,62(3):210-223
This study used the social cognitive theory of well‐being (SCTW; Lent, 2004 ) to examine the role of career decision self‐efficacy (CDSE), perceived educational barriers, and independent self‐construal on the life satisfaction of 176 Mexican American college women. A 3‐step hierarchical regression analysis indicated that independent self‐construal, CDSE, and fewer perceived educational barriers significantly predicted greater life satisfaction among Mexican American college women above and beyond the influence of socioeconomic status and generational status. These findings are consistent with SCTW and highlight the need for counselors and researchers to be aware of the role that self‐construal, CDSE, and perceived educational barriers can have on Mexican American women's life satisfaction. Implications for practice at the secondary‐school and university levels are discussed. 相似文献
63.
Anne O’Brien 《Feminist Media Studies》2017,17(5):836-850
This paper presents a small-scale qualitative case study of five women’s experiences of leadership roles in Irish media industries. Relational Leadership Theory is used to examine whether there is a gendered dimension to women’s leadership and to explore why women’s participation in leadership has not resulted in significant feminist gains or changes to media organisations. The article finds that: the women saw their leadership as relational and simultaneously as socially constructed in a gendered manner. Moreover, the women led organisational change towards greater gender equality in the norms of media work. However, while the women’s leadership was relational and feminine, it was not necessarily feminist; it did not aim to generate systemic changes within the gendering of the media as an institution. The changes that the women wrought incorporated women into a system of production that remained nonetheless masculinist. 相似文献
64.
研究按订单生产(make to order,MTO)模式下随机订单的准入策略.本文提出的准入决策方法分为两步,首先在考虑随机订单的不同属性基础上,采用TOPSIS(technique for order preference by similarity to an ideal solution)方法计算新到订单与理想订单的接近程度,以此作为订单的综合收益,从而对新订单进行分层排序;其次采用MDP(Markov decision process)模型分别计算接受和拒绝订单的期望收益,从而决定是否接受该订单.研究发现,当市场需求接近或大于产能时,企业可从订单分层中获益;反之,市场需求显著小于产能时,分层不会带来额外收益.企业分层收益随需求增加或产能减少而递增,且与生产前置期呈倒U型关系.数值模拟发现,订单分层越精细,收益越大,且分层数约为需求与企业产能的比值时,订单分层收益接近最大值. 相似文献
65.
Diederik Boertien 《Journal of marriage and the family》2012,74(5):1038-1053
In this study, information on small to modest lottery wins from the British Household Panel Survey (N = 2,563) was used to investigate the effect of income on separation. The analysis demonstrated that money matters within relationships. Lottery wins temporarily reduced the odds of separation after men won. Men spent more on leisure and became more satisfied with their leisure time and social lives after winning. Nevertheless, most of the effect of lottery wins on union stability was not mediated by changes in satisfaction; instead, a direct effect of wins on the threshold to leave relationships was observed. No effect on union stability was found when women won. Women did not spend their winnings on leisure time but instead saved or spent money on durable items. These types of spending did not increase satisfaction. The findings suggested that, within families, men acted relatively independently, whereas the behavior of women was more family oriented. 相似文献
66.
Decision‐Making in Paediatric Rehabilitation: Exploring Professionals' and Children's Views on Decision‐Making Involvement 下载免费PDF全文
Wenche Bekken 《Children & Society》2017,31(6):486-496
The article explores the distinction that professionals make between difficult and less difficult decisions in paediatric rehabilitation interventions. This distinction is explored by looking at the involvement of two children in decisions regarding paediatric rehabilitation interventions. The article argues for a clinical practice where children's experiences are extensively used to improve practice and to accommodate the child's right to participate in medical decisions concerning their own body and life. The different ways the children and the professional describe their experiences provide an avenue for a discussion on how medical reasoning can curtail children's involvement in decisions. 相似文献
67.
突破公众参与有效性瓶颈依赖于对公众参与权的依法确认、不断充实及有效保护。鉴于我国对公众参与权的研究比较迟缓、参与权制度发展仍然非常缓慢的现实困境,应当在准确界定公众参与权的性质、明确公众参与权的内容构成基础上,尽快构建起一系列具体的、可操作的法律制度,真正实现公众参与权的民主价值。 相似文献
68.
随着对交通系统不确定性认识的深入,以绝对理性为基础的“期望效用理论”在风险环境下的路径选择分析中显示出局限性,而“预期后悔理论”则为之提供了新的分析思路.将预期后悔理论应用到风险环境下的路径选择分析中,将出行者一致风险规避的假设扩展到多风险规避,建立了基于后悔理论及多风险规避出行特征的交通网络随机用户均衡变分不等式模型,并给出了求解算法.通过算例分析发现,后悔心理对出行者的路径选择并不总是显著的.在非风险环境及极端风险环境中,后悔心理对出行者的路径选择影响是微弱的,但是当环境处于极端风险与非风险之间时,后悔心理对出行者路径选择有着较为显著的影响. 相似文献
69.
Land subsidence risk assessment (LSRA) is a multi‐attribute decision analysis (MADA) problem and is often characterized by both quantitative and qualitative attributes with various types of uncertainty. Therefore, the problem needs to be modeled and analyzed using methods that can handle uncertainty. In this article, we propose an integrated assessment model based on the evidential reasoning (ER) algorithm and fuzzy set theory. The assessment model is structured as a hierarchical framework that regards land subsidence risk as a composite of two key factors: hazard and vulnerability. These factors can be described by a set of basic indicators defined by assessment grades with attributes for transforming both numerical data and subjective judgments into a belief structure. The factor‐level attributes of hazard and vulnerability are combined using the ER algorithm, which is based on the information from a belief structure calculated by the Dempster‐Shafer (D‐S) theory, and a distributed fuzzy belief structure calculated by fuzzy set theory. The results from the combined algorithms yield distributed assessment grade matrices. The application of the model to the Xixi‐Chengnan area, China, illustrates its usefulness and validity for LSRA. The model utilizes a combination of all types of evidence, including all assessment information—quantitative or qualitative, complete or incomplete, and precise or imprecise—to provide assessment grades that define risk assessment on the basis of hazard and vulnerability. The results will enable risk managers to apply different risk prevention measures and mitigation planning based on the calculated risk states. 相似文献
70.
Koen De Koster Nathalie Holvoet 《Development policy review : the journal of the Overseas Development Institute》2012,30(4):399-424
Since the turn of the century, results orientation and performance measurement have become buzzwords in development aid. Bilateral donors are increasingly concerned about the effectiveness of core‐funded UN specialised agencies, funds and programmes, through which they channel a substantial part of their funds. While the logic for increased monitoring is clear, it is less evident how to assess this information for purposes of accountability, performance‐based funding and governance. This article describes the general evolution in this area and discusses two major initiatives to harmonise and align bilateral assessments, using case‐study material from three bilateral donors (Belgium, the Netherlands and the UK) with clearly diverging performance‐management cultures, and exploring the extent to which they rely upon joint and aligned initiatives. 相似文献