Predicting continued use of marijuana among adolescents: the relative influence of drug-specific and social context factors.

Most research on the determinants of adolescent drug use has focused on predictors of either initiation or current use. Little attention has been given to the determinants of continued use of drugs after initiation, even though some researchers have found that the consequences of continued use are more serious than those associated with experimental or occasional use. In this study, a longitudinal sample of 456 secondary and high school students who had already tried marijuana was used to examine the determinants of continued use of marijuana. Nearly 38 percent of those who had tried marijuana continued using, according to the definition operationalized in this study. Potential predictor measures were grouped in a drug-specific domain and a social context domain, and their effects on continued use, controlling for background characteristics, were examined in logistic regression models. Results showed that only the drug-specific domain had a statistically significant effect on the likelihood of continued use. Students who felt that the adverse physical and psychological effects of marijuana were not very important reasons for discontinuing use and those who had gotten stoned during their experimental stage of use were the most likely to continue use after initiation. The results suggest that the perceived physical and psychological effects of the drug are more important determinants of continued use than are social factors or benefits related to use. Any relationships between social factors and continued use are mediated by the perceived effects and risks of the drug.     

Muscle-power quality: does sex or race affect movement velocity in older adults?

To determine sex and race differences in muscle power per unit of muscle contraction, knee-extensor muscle power normalized for knee-extensor muscle volume was measured in 79 middle-aged and older adults (30 men and 49 women, age range 50-85 years). Results revealed that women displayed a 38% faster peak movement velocity than men and African Americans had a 14% lower peak movement velocity than Whites of a similar age when expressed per unit of involved muscle (p < .001). As expected, men exhibited greater knee-extensor strength and peak power per unit of muscle than women, but women had a faster knee- extension movement velocity per unit of muscle than men at the same relative strength level. Moreover, African Americans had greater knee-extensor muscle volume than Whites but exhibited lower knee-extensor strength and lower movement velocity per unit of muscle when tested at the same relative strength levels.     

‘I am studying in the US but’: observations and insights from Caribbean college students

This paper examines the experiences and views of 12 Caribbean students studying at four Liberal Arts colleges and one large university in the Northeast, USA. The purpose of the study was to ascertain how young educated potential immigrants to the US today are thinking about race, identity, and homeland. The data were gathered through a 12-item open-ended questionnaire electronically administered through Google Forms. Among other issues, the researcher wanted to learn about participants’: decision to study in the US, experiences with race, identity and attitudinal shifts, feelings about being assigned racial labels, and current thinking about returning to their home countries. The findings highlight the acceptance of racial labels except for ‘African American’, a dogged adherence to national identity, the challenge of adjusting to the US racialized space, the view of the US as an education and economic transitional point for migrants on their return journey to their home countries, the formulation of new understandings and attitudes regarding mixed ancestry, and the defining role of sexual orientation in the attitude towards home country versus the US.     

Preparation for practice: embedding the development of professional identity within social work curriculum

Newly qualified social workers often enter challenging interdisciplinary settings where they need to be able to clearly articulate a distinctive professional identity. To prepare for these realities, this paper discusses how the development of professional identity has become increasingly central to qualifying social work curriculum at an Australian university. Preparation for social work practice has long been the focus of research in a number of countries, with a significant emphasis on knowledge and skill acquisition, rather than on the development of an overarching professional identity that is also underpinned by shared values and sense of professional purpose and expectations. Against this backdrop, the paper describes initial changes that have been made within core social work courses to progressively embed the development of professional identity more consciously across their studies, to be better prepared for contemporary challenges in the workplace. It is concluded that further changes are needed to fully transform the curriculum, and that the impacts of these changes be systematically evaluated in relation to preparedness for practice.