Age at quitting smoking as a predictor of risk of cardiovascular disease incidence independent of smoking status, time since quitting and pack-years

Background: Risk prediction for CVD events has been shown to vary according to current smoking status, pack-years smoked over a lifetime, time since quitting and age at quitting. The latter two are closely and inversely related. It is not known whether the age at which one quits smoking is an additional important predictor of CVD events. The aim of this study was to determine whether the risk of CVD events varied according to age at quitting after taking into account current smoking status, lifetime pack-years smoked and time since quitting.
Findings. We used the Cox proportional hazards model to evaluate the risk of developing a first CVD event for a cohort of participants in the Framingham Offspring Heart Study who attended the fourth examination between ages 30 and 74 years and were free of CVD. Those who quit before the median age of 37 years had a risk of CVD incidence similar to those who were never smokers. The incorporation of age at quitting in the smoking variable resulted in better prediction than the model which had a simple current smoker/non-smoker measure and the one that incorporated both time since quitting and pack-years. These models demonstrated good discrimination, calibration and global fit. The risk among those quitting more than 5 years prior to the baseline exam and those whose age at quitting was prior to 44 years was similar to the risk among never smokers. However, the risk among those quitting less than 5 years prior to the baseline exam and those who continued to smoke until 44 years of age (or beyond) was two and a half times higher than that of never smokers.
Conclusions: Age at quitting improves the prediction of risk of CVD incidence even after other smoking measures are taken into account. The clinical benefit of adding age at quitting to the model with other smoking measures may be greater than the associated costs. Thus, age at quitting should be considered in addition to smoking status, time since quitting and pack-years when counselling individuals about their cardiovascular risk.

Nature, extent and antecedents of risk management in accounting, law and biotechnology firms in Australia

This paper provides empirical evidence on the nature and the extent of risks faced by small and medium-sized biotechnology and professional service firms (accounting and law) in Australia, as well as on the style of their adopted risk management methods and approaches. The findings of the study indicate that the top three risks faced by these firms are related to reputation, recruiting and retaining skilled staff, and cost management. The study also finds that more than half of the respondent firms manage risk in an integrated manner. The results of this study provide useful insights into the nature, extent and driving forces of risk management practices in these firms.

The social life of categories : an empirical study of term categorization

Most classification schemes in common use are actually categorization schemes which fall somewhere on a continuum between unstructured, uncontrolled lists of terms and formal classifications. Over time, terms change meaning and acquire new definitions. This paper presents the results of an approach that used the librarianship principle of consensus to form categories of terms and to relate those categories using a domain reference group. Boisot's Social Learning Cycle (SLC) was then used as a model with which to explain category variations. The single study undertaken in this investigation demonstrated the value of the SLC for explaining the variations between reference group members, and showed the potential for explaining category changes over time. This identifies areas in which consensus is breaking down or emerging, allowing for focused maintenance of categorical schemes.

The social side of social media : technology or collaboration?

This paper discusses how course design may draw upon social media in order to teach students appropriate skills for a network society in the context of team-work based learning. The emphasis is not upon web 2.0 and social media as inherently suited to providing educational solutions, but upon the ways in which they can be adapted by course designers within the framework of explicit learning objectives. More specifically, we provide a case study of how the use of social media in a blended or wholly-online learning environment provides affordances for team-based collaborative learning, especially when incorporated within a course design that encourages independent, self-directed and authentic learning. This paper argues we need to assess the social aspects of social media, rather than upon the technological, that is, avoid the fetishisation of 'apps,' through the creation of assessment that alternately foregrounds a critical appraisal of web 2.0 technologies and places onus upon the students to develop, with guidance, teamwork skills and processes. We provide an example of how it is possible to integrate web 2.0 technologies into their learning processes and assessment, in order to teach about the realities of collaborating with others in small teams in a work environment increasingly mediated by the Internet. In order to achieve these learning outcomes, course design needs to balance scaffolding with the need to place the imperative for learning specific content and skills upon the students, the latter through the provision of assessment outcomes and resources that the students need to work towards together.

Judicial valuation of the social costs of crime

The true economic functions of the criminal courts are, first, to deter potential prospective offenders from committing offences, and in so doing reduce the total social costs of crime in the future; and secondly, to force the convicted offender to bear some of the costs, which the crime has externalised onto the victim(s) and wider society through retributive justice. These objectives are achieved through the sentencing function. Critics have lamented that too many extraneous factors are taken into account when setting penalties but the authors argue in this article that nevertheless these sentences are optimal because of the judges' comparative advantage. What is of great interest, and the focus of this article, are the implicit valuations of the social costs of crime that these sentences imply. Using the South Australia higher criminal courts as a case study, the authors estimate and utilise these judicial valuations to suggest a methodology for measuring the true economic value of the criminal courts. The analysis helps put into perspective the courts' very valuable contribution to social welfare.

Identity on the edge: The impact of risk, compliance and performativity on VET practitioner identity.

 German Sociologist, Ulrich Beck’s seminal political analysis of risk, Risk Society: Towards a New Modernity, in 1992 posited the concept of ‘risk’ that has become privatised, objectified and a matter for individual concern. This study examines how the management of ‘risk’ is achieved through individual scrutiny, audit and review and the impact these practices have on changing VET practitioner identity. Preliminary PhD interviews with VET practitioners, using grounded theory methodology, identified the symbiotic nature of risk management and generation within the current diverse and challenging VET environment. Resistance or acquiescence to compliance practices and the performative VET environment have significant implications for VET practitioners’ identity construction.

The musical and social benefits of community choir membership in Melbourne (Australia)

That social side of things: students' experiences of social and physical place

This paper highlights the experience of social and physical place as experienced by
students at aTAFE (Technical and Further Education) college in Victoria, Australia, and TAFE diploma graduates who transitioned to a degree course at a university in Victoria, Australia.

The biology and ecology of the ocean sunfish Mola mola : a review of current knowledge and future research perspectives

Relatively little is known about the biology and ecology of the world’s largest (heaviest) bony fish, the ocean sunfish Mola mola, despite its worldwide occurrence in temperate and tropical seas. Studies are now emerging that require many common perceptions about sunfish behaviour and ecology to be re-examined. Indeed, the long-held view that ocean sunfish are an inactive, passively drifting species seems to be entirely misplaced. Technological advances in marine telemetry are revealing distinct behavioural patterns and protracted seasonal movements. Extensive forays by ocean sunfish into the deep ocean have been documented and broad-scale surveys, together with molecular and laboratory based techniques, are addressing the connectivity and trophic role of these animals. These emerging molecular and movement studies suggest that local distinct populations may be prone to depletion through bycatch in commercial fisheries. Rising interest in ocean sunfish, highlighted by the increase in recent publications, warrants a thorough review of the biology and ecology of this species. Here we review the taxonomy, morphology, geography, diet, locomotion, vision, movements, foraging ecology, reproduction and species interactions of M. mola. We present a summary of current conservation issues and suggest methods for addressing fundamental gaps in our knowledge.