Perfect simulation for correlated Poisson random variables conditioned to be positive

In this paper we present a perfect simulation method for obtaining perfect samples from collections of correlated Poisson random variables conditioned to be positive. We show how to use this method to produce a perfect sample from a Boolean model conditioned to cover a set of points: in W.S. Kendall and E. Thönnes (Pattern Recognition 32(9): 1569–1586, 1999), this special case was treated in a more complicated way. The method is applied to several simple examples where exact calculations can be made, so as to check correctness of the program using ²-tests, and some small-scale experiments are carried out to explore the behaviour of the conditioned Boolean model.     

Gay youth and gay adults: bridging the generation gap

Recent discussion of lesbian, gay, bisexual, and trans (LGBT) youth has included two emphases: the burgeoning trend toward youth-supportive organizations and focus on risk factors experienced by these youth. In practice, the two are intertwined: the need for youth-supportive endeavors is typically demonstrated by appeals to the risks LGBT youth face. Relatively little attention has been given to relationships between youth and adults in LGBT communities. This article employs data from a long-term qualitative study with LGBT youth, supported by information from numerous other settings to suggest that a failure on the part of both groups fully to comprehend the experience of the other hampers the optimal functioning of everyone involved. In particular, we suggest that the discourse about the dangers faced by LGBT youth, despite its being thoroughly well-intentioned. may actually place these teens at greater risk.     

Good 'traction' can help you achieve change

Examine the abstract idea of traction. Explore how traction in your job can help you motivate meaningful change.     

The right-to-die movement: extrapolating from the National Hemlock Society U.S.A. membership survey

A national membership survey of Hemlock Society USA was conducted by Fox and Kamakahi (1995). Respondents (N=6398) were asked a variety of questions, but in this paper we perform a longitudinal analysis of the characteristics of Hemlock Society USA members. Hemlock Society USA members are divided into three 5-year cohorts: Early Joiners (11 or more years of membership), Middle Joiners (6 to 10 years membership), and Late Joiners (5 or fewer years of membership). Differences between cohorts are examined and extrapolations made regarding Hemlock Society USA and the Right-to-Die Movement. A series of one-way ANOVAs were used with Scheme post-hoc comparisons as heuristic tools for assessing between-cohort differences. Late Joiners are different from earlier members, but are more like other Hemlock Society USA members than the adult U.S. population at large. Hemlock Society USA members are essentially societal "elites" (based on socio-demographic variables) who work in social environments that are decidedly split on the issue of voluntary suicide and euthanasia.     

True patient safety begins at the top. Leaders at one large health system rally around safety,avoid blame game

Making patient safety the No. 1 priority at a hospital or clinic sounds like a easy task. It isn't. At one Oklahoma health system, an improved patient safety program is a massive effort requiring input and participation from every member of the staff. Figuring out how to convince employees that patient safety is their first priority means developing an extensive communication and education program.     

Customized clinical case management for chronically ill patients. Health system sees remarkable results with teams of case managers,physicians, patients

Securing excellent care and positive outcomes for seriously ill, high-risk patients requires extraordinary measures. A health system in Georgia is experiencing strong results by taking a team approach to health care with case managers, physicians and patients working together.     

Gays and lesbians in local races: a study of electoral viability

Although lesbians and gays are more visible in the political arena than in the past, there is little published research on their electoral viability. This article helps to fill that void by presenting results of experimental research featuring respondents' reactions to a hypothetical candidate for a non-partisan city council seat. Sex and sexual orientation of the candidates were manipulated so that six categories were tested: a straight woman, a lesbian, a woman rumored to be lesbian, a straight man, a gay man, and a man rumored to be gay. The findings suggest that openly gay and lesbian candidates are seen as less viable than straight candidates or those rumored to be homosexual. Hence, the extent to which a candidate portrays his or her sexual orientation appears to make a difference in the chance to win elective office.     

Widowhood and spirituality: coping responses to bereavement

Nearly half of women age 65 or older are widows and nearly 70% of these women live alone. Because older women are three times more likely than their male counterparts to be widowed, widowhood has been labeled a primarily female phenomenon. This review article has two aims: (a) to discuss the impact of widowhood on the lives of older women and (b) to discuss how religion and spirituality may be used as coping methods for conjugal loss. After reviewing the literature the authors conclude that older women use religious coping as well as religious and spiritual beliefs and behaviors to facilitate positive adjustment to the loss of a spouse.     

An attribution model of public discrimination towards persons with mental illness

In this study, we build on previous work by developing and estimating a model of the relationships between causal attributions (e.g., controllability, responsibility), familiarity with mental illness, dangerousness, emotional responses (e.g., pity, anger, fear), and helping and rejecting responses. Using survey data containing responses to hypothetical vignettes, we examine these relationships in a sample of 518 community college students. Consistent with attribution theory, causal attributions affect beliefs about persons' responsibility for causing their condition, beliefs which in turn lead to affective reactions, resulting in rejecting responses such as avoidance, coercion, segregation, and withholding help. However, consistent with a danger appraisal hypothesis, the effects of perceptions of dangerousness on helping and rejecting responses are unmediated by responsibility beliefs. Much of the dangerousness effects operate by increasing fear, a particularly strong predictor of support for coercive treatment. The results from this study also suggest that familiarity with mental illness reduces discriminatory responses.     

Casual sex among Australian schoolies

This study of the casual sexual partnering of 570 male and 776 female Australian high school students on a schoolies week vacation expands on earlier research on factors that influence the sexual activity of vacationing youth. Over 60% of the men and nearly 40% of the women who engaged in sexual intercourse during schoolies week did so with a casual partner. We used logistic regression to test an expanded version of Triandis Theory of Interpersonal Behavior (TIB) in explaining casual sexual partnering. Situational experiences (similar to what others have called situational disinhibition), prior sexual experiences and intentions (similar to what others have called spillover) influenced casual sexual partnering. Different causal pathways were demonstrated for men and women.