A case–control study relating railroad worker mortality to diesel exhaust exposure using a threshold regression model

A case–control study of lung cancer mortality in U.S. railroad workers in jobs with and without diesel exhaust exposure is reanalyzed using a new threshold regression methodology. The study included 1256 workers who died of lung cancer and 2385 controls who died primarily of circulatory system diseases. Diesel exhaust exposure was assessed using railroad job history from the US Railroad Retirement Board and an industrial hygiene survey. Smoking habits were available from next-of-kin and potential asbestos exposure was assessed by job history review. The new analysis reassesses lung cancer mortality and examines circulatory system disease mortality. Jobs with regular exposure to diesel exhaust had a survival pattern characterized by an initial delay in mortality, followed by a rapid deterioration of health prior to death. The pattern is seen in subjects dying of lung cancer, circulatory system diseases, and other causes. The unique pattern is illustrated using a new type of Kaplan–Meier survival plot in which the time scale represents a measure of disease progression rather than calendar time. The disease progression scale accounts for a healthy-worker effect when describing the effects of cumulative exposures on mortality.     

Passion,Intimacy, and Commitment in Casual Sexual Relationships in a Canadian Sample of Emerging Adults

Research on casual sexual relationships (CSRs) among emerging adults is prevalent, yet our empirical and theoretical knowledge of relationship processes involved in these relationships is limited. The present study’s objective was to compare four CSR partner types (acquaintance, friend, non-dating partner, ex-romantic partner) on passion, intimacy, and commitment, the components of Sternberg’s triangular theory of love. A total of 441 Canadians aged 18–25 years who were not in a romantic relationship, and who reported having had more than one sexual contact with their last CSR partner, completed an online survey. Across all partner types, passion was highest, followed by intimacy and commitment. Levels of passion, intimacy, and commitment generally increased with partner familiarity. However, CSR partner type differences on the three components were partially explained by CSR components (i.e., frequency of sexual activity, frequency of social activity, whether partners saw each other with the main goal of having sex, sexual exclusivity agreement, and hopes about the relationship). Results are consistent with CSRs’ emphasis on sexuality, and, to a lesser extent, emotions. However, they challenge the mainstream and scientific conflation of CSRs with an absence of emotional bond, commitment, or love.     

Brazil’s non-indifference: a case for a feminist diplomatic agenda or geopolitics as usual?

At the beginning of the twenty-first century, Brazil took advantage of its economically and politically privileged position to challenge global normative structures. In 2004, the concept of “non-indifference” was integrated into the Brazilian vocabulary of foreign policy, justifying and legitimating the country’s acceptance of the invitation to command the United Nations Stabilization Mission in Haiti (MINUSTAH). On the one hand, non-indifference can be read as a discursive maneuver that enabled Brazil to accommodate its non-interventionist agenda to an old geopolitical game, given the pressure imposed upon “global players” to respond effectively and assertively to threats to international peace and security. On the other hand, the “Brazilian way” could also be seen as an alternative to a highly masculinized geopolitical approach to international security. This paper explores possible limitations, tensions and/or opportunities that emerge from the encounter between a feminist diplomatic agenda and a masculinizing ordering of the international space. It does so by contrasting Brazil’s ambition for a permanent seat on the United Nations Security Council (UNSC), the club of powerful states, with Brazil’s diplomatic and military performance during MINUSTAH, widely evaluated as a success due to characteristics such as solidarity, generosity, flexibility and the “warm conviviality” of Brazilian culture.     

Supporting family life: A survey of homeless shelters

Survey data from a national sample of homeless family shelters (N=59)were analyzed to describe the family support programming available to residents. Data were reported on facility and resident characteristics and family support programming, as well as on facility admission criteria and program participation requirements. Four independent variables (length of stay, shelter capacity, sponsorship, and program philosophy) were examined for their relationship to the family-oriented services offered. Facilities sheltered an average of 17 families, with a range of 2–200; the average length of stay for families was slightly over 5 months. Regarding family programming, services of an educational nature were more popular than those focused on providing support or therapy/intervention; services to parents to further adult development were more often offered than those either directed to parents in their parenting roles or to the family as a unit. Virtually all shelters (98%) applied eligibility criteria to families seeking admission. The most common reasons for exclusion were active drug (86%) and alcohol (83%) abuse by a family member; 40% also refused acceptance to families with adolescent males. Seventy-eight percent of facilities mandated participation in some support services. Smaller shelters operated with greater numbers of exclusions (¯x=5.98773; p<.05);larger shelters had higher percentages of mandatory family programming (¯x= 9.21823; p<.06).These findings shed light on shelter directors' beliefs about the etiology of family homelessness and proper steps to solve the problem.     

The Voice of the Child in Parenting Coordination: Views of Children,Parents, and Parenting Coordinators

This article examines the views of children, parents, and parenting coordinators (PCs) on child inclusion in the parenting coordination process. Participants in a parenting coordination pilot project in Montréal, Quebec—10 children (ranging in age from 8–17 years old), 14 parents, and 2 PCs—were interviewed at the end of the project. The goal was to understand their perceptions of child participation in parenting coordination interventions. Overall, a vast majority of children and parents agreed that children should be given a forum in parenting coordination and their voices heard. Feedback from PCs on their child inclusion experience also provided rare insight into this practice. Results confirm the importance for children of being heard in postseparation interventions, even when parental conflict is high. These findings add to the growing literature on the participation of children in postseparation interventions.