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Yanowitz KL 《Violence and victims》2006,21(1):91-100
Although stalking has been increasingly recognized as a serious social problem, surprisingly few studies have investigated perceptions of the specific behaviors that comprise stalking. The focus of this article, therefore, was to further delineate college students' stalking schemas and to examine the influence of gender and personal knowledge of stalking on their schemas. Participants judged whether or not a variety of behaviors were examples of stalking. Behaviors were designed to range from mild, somewhat ambiguous, examples of stalking to more severe examples. Results revealed an interaction between gender and experience on ratings of mild stalking behaviors. Men who had personal knowledge of stalking (by having been stalked themselves or knowing someone who had been stalked) were significantly more likely to rate mild stalking behaviors as stalking than men who had no experience. In contrast, experience did not affect women's perceptions of mild stalking, as no differences were found between women as a function of experience. Results are discussed in terms of overall relationship schemas. 相似文献
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Abstract. In general, the risk of joint extreme outcomes in financial markets can be expressed as a function of the tail dependence function of a high‐dimensional vector after standardizing marginals. Hence, it is of importance to model and estimate tail dependence functions. Even for moderate dimension, non‐parametrically estimating a tail dependence function is very inefficient and fitting a parametric model to tail dependence functions is not robust. In this paper, we propose a semi‐parametric model for (asymptotically dependent) tail dependence functions via an elliptical copula. Under this model assumption, we propose a novel estimator for the tail dependence function, which proves favourable compared to the empirical tail dependence function estimator, both theoretically and empirically. 相似文献
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To control operating costs, a zero-one integer programming model is developed to assist pharmacy staff scheduling decisions. Variable scheduling needs are met by the assignment of relief (mobile) pharmacists to help or temporarily replace full-time pharmacists. Assignments of relief pharmacists over a two-week planning horizon are determined with consideration given to variations in wage rates and travel costs together with the underlying corporate, contractual and operating constraints. The developed model has been applied with considerable success using data collected from a business district in the US located in northern Louisiana related to a national retail chain pharmacy. Forecasting the number of chain retail outlets in the near future has been also performed and the results obtained argue in favor of adopting the model by the entire chain. 相似文献
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