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In this paper, we consider characterizations of geometric distribution based on some properties of progressively Type-II right-censored order statistics. Specifically, we establish characterizations through conditional expectation, identical distribution, and independence of functions of progressively Type-II right-censored order statistics. Moreover, extensions of these results to generalized order statistics are also sketched. These generalize the corresponding results known for the case of ordinary order statistics. 相似文献
24.
This paper reviews qualitative data from academic research into prostitution, accounts from prostitutes themselves in the UK and Australia, and data from one of the authors' own research in New South Wales to analyse the ways in which female sex workers negotiate and construct their sense of themselves. This analysis is informed by the suggestion that, in the act of commercial sex, the prostitute's own body is being consumed by the client, which can be seen to place certain pressures on the relationship between sex workers' professional and personal identities. Our review suggests that individual workers' tactics for managing the contradictions of working as a prostitute and preserving self‐esteem are both similar and different, even within two broadly culturally commensurable contexts, and, moreover, that not all prostitutes necessarily want to maintain a strict divide between work sex and non‐work sex in every encounter. Moreover, even for those who do, the trials of maintaining the divide are considerable, as is the permeability of boundaries between work and intimate sex. 相似文献
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26.
Karl Besel Charlotte Lewellen Williams Joanna Klak 《Nonprofit management & leadership》2011,22(1):53-65
Nonprofit organizations in the United States depend on a diverse set of funding streams to sustain their operations. This study examines the ability of nonprofits to leverage funds from the private sector during the current economic downturn within four areas receiving federal funding for community and economic development. Both survey research and individual interviews were used to examine how nonprofits within these areas are incorporating their board members and community leaders to continue services during a time of resource scarcity. 相似文献
27.
Let X
1, X
2,... be iid random variables (rv's) with the support on nonnegative integers and let (W
n
, n≥0) denote the corresponding sequence of weak record values. We obtain new characterization of geometric and some other discrete
distributions based on different forms of partial independence of rv's W
n
and W
n+r
—W
n
for some fixed n≥0 and r≥1. We also prove that rv's W
0 and W
n+1
—W
n
have identical distribution if and only if (iff) the underlying distribution is geometric. 相似文献
28.
Graciela Espinosa-Hernández Joanna Bissell-Havran Anna Nunn 《Journal of sex research》2015,52(8):887-897
This study examined the role of religiousness and gender in age at first intercourse, and sexual expectations and values in Mexico, a macrocontext where the majority is Mexican and Catholic (83%). Participants were Catholic and nonreligious adolescents (54% girls) attending middle (71%) or high school. Findings indicated that Catholic adolescents engaged in sexual intercourse at later ages than nonreligious adolescents. Both religious attendance and importance of religion and values in sexual decision making were associated with more conservative sexual values. Boys who were raised Catholic were more likely to endorse female virginity values and were less likely to expect to wait to have sex until married than nonreligious boys. These associations were not significant among girls. Catholic boys may be more likely to internalize sexual double standard beliefs regarding premarital sex than nonreligious boys. This study expands our understanding of the role of religiousness in Mexican adolescents’ sexuality. 相似文献
29.
30.
Information ambiguity is prevalent in organizations and likely influences management decisions. This study examines, given imprecise probabilities and outcomes, how managers make choices when they are provided with single-figure benchmarks. Seventy-nine MBA students completed two experiments. We found that, in a decision framed as a decision under certainty involving an ambiguous outcome, the majority of the subjects were ambiguity prone in the loss condition and switched to ambiguity aversion in the gain condition. However, in the presence of probabilistic ambiguity in a decision under risk, this expected switching pattern was shown only when the difference in riskiness between the two choice options (in the loss condition) was perceived to be relatively small. In a companion study, we used a written protocol approach to identify factors that affect decision makers' investment choices when faced with ambiguous outcomes. Protocols frequently mentioned that the ambiguous outcome option was risky, even in the case which was framed as a decision under certainty in the problem statement. In a decision under risk with ambiguous outcomes, the combination of probabilistic risk and outcome ambiguity was seen as even more risky. 相似文献