Modelling biofilm growth and disinfectant decay in drinking water

A simple biofilm model was developed to describe the growth of bacteria in drinking water biofilms and the subsequent interactions with disinfectant residuals incorporating the important processes, such as attachment of free bacteria to the biofilm on a wall surface, detachment of bacteria from the biofilm, growth of biofilm bacteria with chloramine inhibition, chloramine decay in the bulk water phase, and chloramine decay due to biofilm bacteria and wall surfaces. The model is useful in evaluating the biological stability of different waters, as it can predict concentration of organic substances in water. In addition, the model can be used to predict the bacterial growth and biofilm decay in distribution systems. A model of this kind is a useful tool in developing system management strategies to ultimately improve drinking water quality.

Sydney 1998 - lessons from a drinking water crisis

From July to September 1998, high concentrations of Cryptosporidium and Giardia were detected episodically in the water supply and distribution systems of Sydney, Australia. The resulting drinking water crisis triggered three consecutive boil-water advisories and a government inquiry into the management of the water supply. The episodic nature of the detections focused attention on the veracity of the laboratory results and triggered an investigation of the transport of these pathogens in Sydney's water supply system. This article provides information submitted to the Sydney Water Inquiry that explains the episodic occurrence of pathogens in the reticulated water supply, attributing it to rapid fluctuations in the quality of the water reaching the water treatment plant

How easy can the barley brie : drinking culture and accounting failure at the end of the nineteenth century in Britain

Purpose – This paper seeks to extend the development of the historical accounting research agenda further into the area of popular culture. The work examines the discourses that surrounded the drinking of alcohol in nineteenth century Britain and explores how an accounting failure disrupted the tension between the two established competing discourses, leading to a significant impact on UK drinking culture at the end of the nineteenth century.

Design/methodology/approach – The paper employs both primary and secondary sources. Secondary sources are used to develop the main themes of the discourses deployed by the temperance societies and the whisky companies. Primary sources derived from the contemporary press are employed, as necessary, in support.

Findings – The paper demonstrates that accounting, although it may not be central to a discourse or other social structure, can still have a profound impact upon cultural practices. The potential for research into culture and accounting should not therefore be dismissed if no immediate or concrete relationship between culture and accounting can be determined. Further support is provided for studies that seek to expand the accounting research agenda into new territories.

Originality/value – The study of popular culture is relatively novel in accounting research. This paper seeks to add to this research by exploring an area of cultural activity that has hitherto been neglected by researchers, i.e. by exploring how an accounting incident impacted upon the historical consumption of Scotch whisky in the UK.

The influence of families on early adolescent school connectedness : evidence that this association varies with adolescent involvement in peer drinking networks

School connectedness is central to the long term well-being of adolescents, and high quality parent–child relationships facilitate school connectedness. This study examined the extent to which family relationship quality is associated with the school connectedness of pre- and early teenagers, and how this association varies with adolescent involvement in peer drinking networks. The sample consisted of 7,372 10–14 year olds recruited from 231 schools in 30 Australian communities. Participants completed the Communities that Care youth survey. A multi-level model of school connectedness was used, with a random term for school-level variation. Key independent variables included family relationship quality, peer drinking networks, and school grade. Control variables included child gender, sensation seeking, depression, child alcohol use, parent education, and language spoken at home. For grade 6 students, the association of family relationship quality and school connectedness was lower when peer drinking networks were present, and this effect was nonsignificant for older (grade 8) students. Post hoc analyses indicated that the effect for family relationship quality on school connectedness was nonsignificant when adolescents in grade 6 reported that the majority of friends consumed alcohol. The results point to the importance of family-school partnerships in early intervention and prevention.

Reducing intoxication among bar patrons: some lessons from prevention of drinking and driving

Intoxication in and around licensed premises continues to be common, despite widespread training in the responsible service of alcohol and laws prohibiting service to intoxicated individuals. However, research suggests that training and the existence of laws are unlikely to have an impact on intoxication without enforcement, and evidence from a number of countries indicates that laws prohibiting service to intoxicated individuals are rarely enforced. Enforcement is currently hampered by the lack of a standardized validated measure for defining intoxication clearly, a systematic approach to enforcement and the political will to address intoxication. We argue that adoption of key principles from successful interventions to prevent driving while intoxicated could be used to develop a model of consistent and sustainable enforcement. These principles include: applying validated and widely accepted criteria for defining when a person is ‘intoxicated’; adopting a structure of enforceable consequences for violations; implementing procedures of unbiased enforcement; using publicity to ensure that there is a perceived high risk of being caught and punished; and developing the political will to support ongoing enforcement. Research can play a critical role in this process by: developing and validating criteria for defining intoxication based on observable behaviour; documenting the harms arising from intoxication, including risk curves associated with different levels of intoxication; estimating the policing, medical and social costs from intoxicated bar patrons; and conducting studies of the cost-effectiveness of different interventions to reduce intoxication.

Clinical translation of the research article titled "The influence of early drinking contexts on current drinking among adult lesbian and bisexual women"

The article reported on a questionnaire-based study of 94 lesbian and 51 bisexual women that investigated the relationship between current drinking and early alcohol drinking patterns associated with coming out and a variety of social networks. The findings were that there was a “more permissive drinking culture” among lesbian and bisexual women than among heterosexual women. Furthermore, the more exposed women were to this culture through socializing in lesbian/bisexual networks during coming out, the more likely they were to drink heavily later in life. There were no differences in early drinking patterns of bisexual compared with lesbian women. One of the central hypotheses of the study that an earlier age at coming out would increase current problem drinking was not borne out.