A six-month follow-up of adolescents' sexual risk-taking,HIV/AIDS knowledge,and attitudes to condoms

A follow-up study was conducted to investigate change in sexual behaviour, knowledge about HIV/AIDS transmission, and attitudes to condoms over a 6-month period in a sample of late-adolescent students. The study also obtained subjective reports of HIV/AIDS-relevant change. Overall there was a decrease in sexual risk-taking behaviour with casual partners but no change occurred in sexual behaviour with regular partners, knowledge about HIV/AIDS, attitude towards condoms, or intention to use a condom on next sexual encounter. Examination of individual data revealed that, for some adolescents where behavioural change had occurred, this was in the direction of less safe sex. There were few self-reports of change in sexual behaviour, intention to take precautions against HIV/AIDS, or concern about HIV/AIDS over the preceding 6 months. Subjective reports of behaviour change did not correspond with reports of actual behaviour. Low rates of behaviour change are attributed to the failure of adolescents to personalize the threat of AIDS and to their trust in the safety of sex with a regular partner as well as to the lack of relevance of HIV/AIDS education campaigns to this group.     

Reducing stereotyped behavior using momentary dro: An experimental analysis

Momentary DRO, a little-used variant of DRO, was compared with a more traditional DRO procedure in the reduction of stereotyped behavior displayed by five subjects with severe mental retardation. Momentary DRO appeared to be more effective than the traditional procedure for three subjects, less effective for one subjects and to increase the stereotyped behavior of the final subject above baseline levels, These findings are discussed in relation to response covariation effects, treatment maintenance and case of implementation.     

Acalculia: An historical review of localization

This article reviews the brain localization of calculation disorders (acalculia) beginning with Gall's claim in the early 19th century for a "center" of calculation. A renewed interest in the subject arose around the time of Henschen during the first quarter of the 20th century. A summary of the cases of acalculia since Henschen leads to the conclusion that regardless of the functional modular nature of calculation ability, there is neither a localized region nor a specific hemisphere uniquely underlying the disorder.     

The Social Ecology of Residential Pattern and Memberships In Immigrant Churches

In this paper, we utilize GIS (Geographic Information System) mapping data to locate eleven immigrant congregations and the residential addresses of their members in Houston, Texas. Combining this information with ethnographic data allows us to understand how ecological variables impact organizationalcharacteristics of religious institutions. Specifically, we combine GIS and ethnographic data on immigrant congregations in Houston, Texas, to analyze characteristics that make them more parish or niche-like in structure. We demonstrate that the combination of GIS techniques and standard field methods yields the greatest potential to provide a comprehensive understanding of what congregations mean to their members.     

Psychosocial job strain and productivity in human service workers: A test of the demand-control-support model

The aim of the study was to test the main and interactive effects of the key dimensions of the demand-control-support model in predicting levels of strain (specifically emotional exhaustion, depersonalization and job dissatisfaction) and feelings of productivity and competency (personal accomplishment) in a multi-occupational sample of human service workers (N = 813). Controlling for demographics, negative affectivity (NA), and quadratic terms, structural equation analyses showed some support for the additive iso-strain hypothesis: jobs combining high demands, low control and low support produced the lowest levels of satisfaction in workers. High demands and low supports only were associated with high depersonalization, and high emotional exhaustion. Support was also found for the additive active learning hypotheses: jobs combining high demands and high control produced the highest levels of personal accomplishment. The study supports job redesign interventions for improving worker well-being and productivity.     

Social Categories and Student Perceptions in High School Mathematics

The plans that adolescent boys and girls make about participating in senior mathematics courses and mathematics-related careers are often at odds with their actual mathematics achievements. In contrast to explanations relating plans to gender differences in mathematics performance, mathematics participation can be explained by expectancy-value models of academic choice, based on gendered self-perceptions, task perceptions, and value judgments. This study with Year 10 Australian students ( N = 199) added to an expectancy-value model the students' current course levels that act as salient social categories. The results suggest that intervention programs need to target perceptions by girls and boys about mathematical talent, as well as making mathematics more useful and interesting to young adults. The findings raise further questions about the stratification of students into separate mathematics courses during the early years of high school.     

Loss, Healing, and the Power of Place

Human beings have a tendency to transform geographical spaces into dwelling places which assume significance in terms of their social, cultural and personal identities. The authors describe the ways in which this occurs, how it is disrupted by a natural disaster - an Australian bushfire - and how the reciprocal relationship between place and person can contribute to personal and communal healing. The discussion draws on a doctoral thesis conducted by the principal author, and is illuminated by excerpts from narratives provided by those who experienced the bushfire. The discussion is informed by insights from phenomenological geography and ecological philosophy.