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241.
Dancun O. Okall Ken Ondenge Monicah Nyambura Fredrick O. Otieno Felicia Hardnett Kyle Turner 《Journal of homosexuality》2014,61(12):1712-1726
Men who have sex with men (MSM) are a crucial and marginalized at risk population for HIV in Africa but are poorly studied. Like other areas of Africa, homosexuality is illegal in Kenya. We assessed MSM comfort in accessing health services and willingness to participate in HIV prevention research in Kisumu, Kenya—an area of high HIV prevalence. We conducted a two-phase formative study with individual interviews (n = 15) and a structured survey (n = 51). Peer contact or snowball method (n = 43, 84.3%) was the primary recruitment strategy used to locate MSM. Exact logistic regression models were used for survey data analysis. Over 60% (32/51) of survey participants were not very comfortable seeking health services from a public hospital. Almost all MSM (49/51; 96.1%) reported willingness to be contacted to participate in future HIV research studies. Efforts to provide facilities that offer safe and confidential health services and health education for MSM is required. Continued community engagement with the MSM population in Kenya is needed to guide best practices for involving them in HIV prevention research. 相似文献
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244.
Turner NE 《Journal of gambling studies / co-sponsored by the National Council on Problem Gambling and Institute for the Study of Gambling and Commercial Gaming》2011,27(4):607-623
This study used simulations to examine the effect of prize structure on the outcome volatility and the number of winners of
various game configurations. The two most common prize structures found in gambling games are even money payoff games (bet
1; win1; win 2) found on most table games and multilevel prizes structures found in gambling machine games. Simulations were set
up to examine the effect of prize structure on the long-term outcomes of these games. Eight different prize structures were
compared in terms of the number of winners and volatility. It was found that the standard table game and commercial gambling
machines produced fairly high numbers of short term winners (1 h), but few long term winners (50 h). It was found that the
typical even money game set up produced the lowest level of volatility. Of the multilevel prize structures examined, the three simulations based
on commercial gambling machines were the least volatile. The results are examined in terms of the pragmatics of game design. 相似文献
245.
Social learning theory posits that one crucial way individuals learn how to behave is by observing and modeling the behavior of salient others. We conducted a short-term longitudinal study using multisource data on 183 teenaged ice hockey players (M age = 13.39 years) in 16 hockey teams to test the effects of 3 potentially salient leadership influences (team coaches, team players, and parents) on players' on-ice aggression. We tested a cross-level mediated model in which player aggression (penalty minutes) as measured by referees was the criterion variable. After controlling for prior levels of player aggression, team-level aggression mediated the relationship between team-level coach transformational leadership and player aggression. Parents' transformational leadership did not influence player aggression when assessed simultaneously with team-level coach transformational leadership. Consistent with social learning theory, the findings suggest that transformational leaders model prosocial behavior for followers. 相似文献
246.
The sample linear discriminant function (LDF) is known to perform poorly when the number of features p is large relative to the size of the training samples, A simple and rarely applied alternative to the sample LDF is the sample Euclidean distance classifier (EDC). Raudys and Pikelis (1980) have compared the sample LDF with three other discriminant functions, including thesample EDC, when classifying individuals from two spherical normal populations. They have concluded that the sample EDC outperforms the sample LDF when p is large relative to the training sample size. This paper derives conditions for which the two classifiers are equivalent when all parameters are known and employs a Monte Carlo simulation to compare the sample EDC with the sample LDF no only for the spherical normal case but also for several nonspherical parameter configurations. Fo many practical situations, the sample EDC performs as well as or superior to the sample LDF, even for nonspherical covariance configurations. 相似文献
247.
Villarroel MA Turner CF Eggleston E Al-Tayyib A Rogers SM Roman AM Cooley PC Gordek H 《Public opinion quarterly》2006,70(2):166-196
Well-conducted telephone surveys provide an economical meansof estimating the prevalence of sexual and reproductive behaviorsin a population. There is, however, a nontrivial potential forbias since respondents must report sensitive information toa human interviewer. The National STD and Behavior MeasurementExperiment (NSBME) evaluates a new survey technologytelephoneaudio computer-assisted self-interviewing (T-ACASI)thateliminates this requirement. The NSBME embedded a randomizedexperiment in a survey of probability samples of 1,543 U.S.and 744 Baltimore adults ages 18 to 45. Compared with NSBMErespondents interviewed by human interviewers, respondents interviewedby T-ACASI were 1.5 to 1.6 times more likely to report same-gendersexual attraction, experience, and genital contact. The impactof T-ACASI was more pronounced (odds ratio = 2.5) for residentsof locales that have historically been less tolerant of same-gendersexual behaviors and for respondents in households with children(odds ratio = 3.0). 相似文献
248.
EXPLAINING THE SOCIAL WORLD: Historicism versus Positivism 总被引:1,自引:0,他引:1
Jonathan H. Turner 《The Sociological quarterly》2006,47(3):451-463
249.
Integrated care is a global reform principle for improving patient access and outcomes by ensuring that healthcare organisations deliver services in a joined‐up, person‐centred way. Following reforms designed to infuse agency within English National Health Service (NHS) organisations, the agenda for integration must come to grips with the different approaches to joint working that these organisations mobilise, and the compatibility of their different agentic orientations. We build a matrix for identifying the extent to which different forms of agency orient nine NHS organisational types. Interrogating the Strategic and Operational Plans of these organisations for the period 2015–2018 based on questions derived from the matrix, we associate each organisation with one of eight generalised models. Assuming that there is greater potential for integration where organisations mobilise similar forms of agency, we discuss the incentives and potential governance changes that policy makers might consider to enhance integrative potential. 相似文献
250.
This paper addresses the hypothesis that the experience of mattering to others is inversely related to depressive symptomatology. We also assess the extent to which mattering overlaps or is redundant with other measures of personal and social resources. Based on multivariate analyses of two waves of data from a large urban community sample (n = 1,300), we identify three important findings. First, women experience substantially higher levels of mattering than do men. Therefore, if men and women had equal levels of mattering, women would report even higher depression scores relative to men. Second, it is clear that mattering and sub-dimensions of social support are substantially more confounded among men than among women. Finally, analyses confirm that mattering is conditionally predictive of depression by gender. Specifically, variations in mattering are predictive of depression for women, but not for men. This relationship is confirmed both cross-sectionally and over time. 相似文献