Socioeconomic differentials in the transition to first cohabitation in Norway

Using Norwegian data this study examines the impact of individual as well as parental socioeconomic resources on the timing of the transition to first cohabitation. The analyses show that the entrance into a first cohabitation is positively affected by individual level of education, whereas school enrollment delays first cohabitation. Further, respondents whose parents have a secondary or tertiary education start their first cohabitation later than those with lower educated parents. There are, however, important gender differences in the association between socioeconomic variables and the timing of first cohabitation. First, there is a stronger positive association between level of education and timing of first cohabitation for women than is the case for men. The positive effect of income, on the other hand, is more pronounced for men. Lastly, the delaying effect of having a tertiary educated father is stronger for the female sub-sample.     

Peak Exposures in Epidemiologic Studies and Cancer Risks: Considerations for Regulatory Risk Assessment

We review approaches for characterizing “peak” exposures in epidemiologic studies and methods for incorporating peak exposure metrics in dose–response assessments that contribute to risk assessment. The focus was on potential etiologic relations between environmental chemical exposures and cancer risks. We searched the epidemiologic literature on environmental chemicals classified as carcinogens in which cancer risks were described in relation to “peak” exposures. These articles were evaluated to identify some of the challenges associated with defining and describing cancer risks in relation to peak exposures. We found that definitions of peak exposure varied considerably across studies. Of nine chemical agents included in our review of peak exposure, six had epidemiologic data used by the U.S. Environmental Protection Agency (US EPA) in dose–response assessments to derive inhalation unit risk values. These were benzene, formaldehyde, styrene, trichloroethylene, acrylonitrile, and ethylene oxide. All derived unit risks relied on cumulative exposure for dose–response estimation and none, to our knowledge, considered peak exposure metrics. This is not surprising, given the historical linear no‐threshold default model (generally based on cumulative exposure) used in regulatory risk assessments. With newly proposed US EPA rule language, fuller consideration of alternative exposure and dose–response metrics will be supported. “Peak” exposure has not been consistently defined and rarely has been evaluated in epidemiologic studies of cancer risks. We recommend developing uniform definitions of “peak” exposure to facilitate fuller evaluation of dose response for environmental chemicals and cancer risks, especially where mechanistic understanding indicates that the dose response is unlikely linear and that short‐term high‐intensity exposures increase risk.     

A Reaction to Mark Pope's (2000) “A Brief History of Career Counseling in the United States”

The author acknowledges the significance of the 6 steps presented by M. Pope (2000) in his article “A Brief History of Career Counseling in the United States.” It is proposed that the historical stages for each kind of career counselor are most appropriately organized around federal legislation that affects it. Alternative “stages,” which the author believes are appropriate in tracing the history of the school counselor movement, are presented as an example of this approach.     

Applications of Community Informatics for Building Community and Enhancing Civic Society

Community informatics provides new ways of approaching old problems of community development and enhancing civic society. Building on a theoretical analysis, this article discusses research in the area of the efforts of community networks in the USA to achieve outcomes in these two areas using the tools of community telecommunications and networking. The analysis matches the theoretical arguments for how community building and civic society are achieved against the practice of community networks trying to implement the new communications technologies. The analysis shows that achieving these goals is difficult for community information networks and that a full understanding of the nature of community information infrastructures could likely be very helpful in this task.     

Risk-Based Analysis of the Danish Pork Salmonella Program: Past and Future

The Danish pork Salmonella control program was initiated in 1993 in response to a prominent pork-related outbreak in Copenhagen. It involved improved efforts at slaughter hygiene (postharvest) and on-farm (preharvest) surveillance and control. After 10 years, 95 million Euros, significant reductions in seropositive herds, Salmonella positive carcasses, and pork-attributable human cases (PAHC), questions have arisen about how best to continue this program. The objective of this study was to provide some analysis and information to address these questions. The methods used include a computer simulation model constructed of a series of Excel workbooks, one for each simulated year and scenario ( http://www.ifss.iastate/DanSalmRisk ). Each workbook has three modules representing the key processes affecting risk: seropositive pigs leaving the farm (Production), carcass contamination after slaughter (Slaughter), and PAHC of Salmonella (Attribution). Parameter estimates are derived from an extensive farm-to-fork database collected by industry and government and managed by the Danish Zoonosis Centre ( http://www.food.dtu.dk ). Retrospective (1994–2003) and prospective (2004–2013) simulations were evaluated. The retrospective simulations showed that, except for the first few years (1994–1998), the on-farm program had minimal impact in reducing the number of positive carcasses and PAHC. Most of the reductions in PAHC up to 2003 were, according to this analysis, due to various improvements in abattoir processes. Prospective simulations showed that minimal reductions in human health risk (PAHC) could be achieved with on-farm programs alone. Carcass decontamination was shown as the most effective means of reducing human risk, reducing PAHC to about 10% of the simulated 2004 level.     

The Changing Spatial Concentration of America's Rural Poor Population*

Abstract This paper documents changing patterns of concentrated poverty in nonmetro areas. Data from the Decennial U.S. Census Summary Files show that poverty rates—both overall and for children—declined more rapidly in nonmetro than metro counties in the 1990s. The 1990s also brought large reductions in the number of high‐poverty nonmetro counties and declines in the share of rural people, including rural poor people, who were living in them. This suggests that America's rural pockets of poverty may be “drying up” and that spatial inequality in nonmetro America declined over the 1990s, at least at the county level. On a less optimistic note, concentrated poverty among rural minorities remains exceptionally high. Roughly one‐half of all rural blacks and one‐third of rural Hispanics live in poor counties. Poor minorities are even more highly concentrated in poor areas. Rural children—especially rural minority children—have poverty rates well above national and nonmetro rates, the concentration of rural minority children is often extreme (i.e., over 80% lived in high‐poverty counties), and the number of nonmetro counties with high levels of persistent child poverty remains high (over 600 counties). Rural poor children may be more disadvantaged than ever, especially if measured by their lack of access to opportunities and divergence with children living elsewhere. Patterns of poverty among rural children—who often grow up to be poor adults— suggest that recent declines in concentrated rural poverty may be short‐lived.     

Decentering constructs predict experience and tolerance of pain: evidence from a cold pressor study / Constructos relacionados con el descentramiento predicen la experiencia y la tolerancia al dolor: evidencia obtenida mediante la prueba del frío

Abstract

Decentering is a detached, observer perspective on one’s current mental contents. Recent work has identified two potential aspects of decentering, Observer Perspective (OP) and Reduced Struggle (RS), that independently predict the effects of decentering. Specifically, both OP and RS predict reduced psychological distress in response to negative affect, with some variability in predictive utility across outcomes. In this study, we sought to extend previous work by examining OP and RS as predictors of responses to an external source of distress, a painful stimulus. Participants completed measures of decentering, followed by a cold pressor task for up to four minutes. We recorded time that participants were able to withstand the cold-water bath and the intensity of the pain experienced. We found that both OP and RS predicted partiacipants’ pain tolerance and pain intensity, but that only RS did so uniquely. Results are discussed with respect to theory on decentering.