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891.
892.
Sexual health risk behaviors, HIV and sexually transmitted infection (STI) transmission, substance use, stigma, and loneliness among older men who have sex with men are discussed. Implications for interventions are provided, including (a) assessment of health‐related risk behaviors, (b) brief interventions, (c) HIV and STI screening, and (d) relevant developmental and contextual factors.  相似文献   
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894.
Many cognitive theories of judgement and decision making assume that choice options are evaluated relative to other available options. The extent to which the preference for one option is influenced by other available options will often depend on how similar the options are to each other, where similarity is assumed to be a decreasing function of the distance between options. We examine how the distance between preferential options that are described on multiple attributes can be determined. Previous distance functions do not take into account that attributes differ in their subjective importance, are limited to two attributes, or neglect the preferential relationship between the options. To measure the distance between preferential options it is necessary to take the subjective preferences of the decision maker into account. Accordingly, the multi‐attribute space that defines the relationship between options can be stretched or shrunk relative to the attention or importance that a person gives to different attributes describing the options. Here, we propose a generalized distance function for preferential choices that takes subjective attribute importance into account and allows for individual differences according to such subjective preferences. Using a hands‐on example, we illustrate the application of the function and compare it to previous distance measures. We conclude with a discussion of the suitability and limitations of the proposed distance function.  相似文献   
895.
In this paper, we consider various ways in which aesthetic value bears on, if not serves as evidence for, the truth of independent statements in set theory.

... the aesthetic issue, which in practice will also for me be the decisive factor—John von Neumann, letter to Carnap, 1931  相似文献   
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This paper explores the links between psychoanalysis and music in Vienna between the years 1908 and 1923, focusing in particular on two members of the highly influential Second Viennese School, the composers Alban Berg and Anton Webern. While there is little evidence of an actual interaction between Freud and his circle and contemporaneous musicians in Vienna, this paper discusses the direct personal and professional contact Webern and Berg had with Freud, and also with Freud's one-time colleague Alfred Adler; Berg's wife Helene also underwent psychoanalytic treatment. Both composers documented their experiences with and feelings about psychoanalysis, offering critical insights into the reception of psychoanalysis in musical circles in Vienna, and into the actual connections between psychoanalysis and Vienna's most important musical figures. This paper examines Berg and Webern in the context of Freud's Vienna, Adler's musical background and his treatment of Webern, and Berg's knowledge of psychoanalysis and strong ambivalence towards his wife's psychoanalytic treatment, and concludes by considering Berg's opera Wozzeck (1925) as an example of a musical work influenced by contemporary Viennese attitudes towards psychoanalysis.  相似文献   
900.
The effects of the communication context on explanations and judgments were investigated in two experiments where participants explained a boy's violent behavior either to a disciplinarian or to a permissive addressee. The results of Study 1 showed that the participants' explanations varied as a function of communication context, but their judgments of responsibility were not influenced. In Study 2, the communication demand was either subtle or blatant. The participants' explanations varied as a function of communication context independently from the communication demand. However, participants' responsibility judgments were influenced only when this demand was subtle. The implications of this for explanations in everyday social settings are considered. Copyright © 2000 John Wiley & Sons, Ltd.  相似文献   
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