Straight to the source : an exploratory study of Australia's regional newspaper journalists' checks on validity and accuracy of sources

This paper reports on an exploratory study that examined whether journalists
undertake the vital role of checking the validity and accuracy of information
supplied to them in media releases. It also monitored how much information
journalists used from press releases in their published work. The study followed Gandy's information subsidy theory by surveying 10 local government media relations officers who regularly issued media releases via
electronic mail or facsimile to a sample of 14 rural/regional newspapers. The data analysed found that rural/regional journalists were not adequately verifying information supplied in media releases and using a significant amount of this information verbatim.

Manual on application of molecular tools in aquaculture and inland fisheries management. Part I : laboratory protocols, data management and analysis

The aim of this manual is to provide a comprehensive practical tool for the generation and analysis of genetic data for subsequent application in aquatic resources management in relation to genetic stock identification in inland fisheries and aquaculture. The material only covers general background on genetics in relation to aquaculture and fisheries resource management, the techniques and relevant methods of data analysis that are commonly used to address questions relating to genetic resource characterisation and population genetic analyses. No attempt is made to include applications of genetic improvement techniques e.g. selective breeding or producing genetically modified organisms (GMOs). The manual includes two ‘stand-alone’ parts, of which this is the second volume: Part 1 – Conceptual basis of population genetic approaches: will provide a basic foundation on genetics in general, and concepts of population genetics. Issues on the choices of molecular markers and project design are also discussed. Part 2 – Laboratory protocols, data management and analysis: will provide step-by-step protocols of the most commonly used molecular genetic techniques utilised in population genetics and systematic studies. In addition, a brief discussion and explanation of how these data are managed and analysed is also included. This manual is expected to enable NACA member country personnel to be trained to undertake molecular genetic studies in their own institutions, and as such is aimed at middle and higher level technical grades. The manual can also provide useful teaching material for specialised advanced level university courses in the region and postgraduate students. The manual has gone through two development/improvement stages. The initial material was tested at a regional workshop and at the second stage feedback from participants was used to improve the contents.

A boarding school outbreak of pertussis in adolescents : value of laboratory diagnostic methods

Culture for Bordetella pertussis (B. pertussis) is the traditional gold standard for laboratory diagnosis of pertussis but is insensitive, especially later in the course of illness and in vaccinated persons. Interpretation of serology is limited by the lack of an appropriate reference standard. An outbreak of pertussis in a crowded boarding-school dormitory allowed evaluation of laboratory correlates of infection. Questionnaires, serum samples and throat swabs were collected from members of the exposed group. Serum samples from unexposed controls of a similar age group were used for comparison. B. pertussis PCR was performed on throat swabs, and sera were tested for IgA antibodies against whole-cell (WC) B. pertussis antigen and IgG antibodies to pertussis toxin (PT). The Centers for Disease Control and Prevention definition for pertussis was used to define clinical cases. We evaluated the use of a previously published cut-off for PT IgG of 125 EIA units (EU)/ml. Completed questionnaires were obtained from 115 students, of whom 85 (74%) reported coughing symptoms, including 32 (28%) who met the clinical case definition for pertussis. B. pertussis was detected by PCR in 17 (15%) and WC IgA in 22 (19%) students; neither correlated with symptoms, but dormitory of residence strongly predicted PCR status. The mean PT IgG geometric mean concentration, in this situation of high pertussis exposure, correlated with severity of symptoms and was significantly higher in both symptomatic and asymptomatic children exposed during the outbreak (P<0·001) than in control children. A cut-off for PT IgG of 125 EU/ml was too high in an outbreak situation to be sensitive enough to identify pertussis cases. A case of pertussis in a crowded boarding-school dormitory resulted rapidly in an outbreak. Serology and PCR were useful in identifying the outbreak and commencing disease control measures. The use of serology has mostly been evaluated in community serosurveys, where it is not possible to determine if immunity reflects vaccination, asymptomatic disease or symptomatic disease. This outbreak gave us the opportunity to evaluate the value of serology and PCR in the presence of confirmed exposure to pertussis.

Laboratory and non-laboratory-based risk prevention models for secondary prevention of cardiovascular disease : the LIPID study

Aims : The aims of this study were to examine whether risk prediction models for recurrent cardiovascular disease (CVD) events have prognostic value, and to particularly examine the performance of those models based on non-laboratory data. We also aimed to construct a risk chart based on the risk factors that showed the strongest relationship with CVD.

Methods and results : Cox proportional hazards models were used to calculate a risk score for each recurrent event in a CVD patient who was enrolled in a very large randomized controlled clinical trial. Patients were then classified into groups according to quintiles of their risk score. These risk models were validated by calibration and discrimination analyses based on data from patients recruited in New Zealand for the same study. Non-laboratory-based risk factors, such as age, sex, body mass index, smoking status, angina grade, history of myocardial infarction, revascularization, stroke, diabetes or hypertension and treatment with pravastatin, were found to be significantly associated with the risk of developing a recurrent CVD event. Patients who were classified into the medium and high-risk groups had two-fold and four-fold the risk of developing a CVD event compared with those in the low-risk group, respectively. The risk prediction models also fitted New Zealand data well after recalibration.

Conclusion : A simpler non-laboratory-based risk prediction model performed equally as well as the more comprehensive laboratory-based risk prediction models. The risk chart based on the further simplified Score Model may provide a useful tool for clinical cardiologists to assess an individual patient's risk for recurrent CVD events.

Emissions laboratory upgraded for new regulations

This article has a look inside Ford Australia's emissions test facilities, recently upgraded to meet the new emissions regulation requirements.  Other articles cover the conversion of plastic waste to commercial-grade diesel, the use of ozone in a commercial laundry and an underground wall to reduce the leaching of contaminants into the Hunter River.

Memory on the beach : an Australian memory (and hypnosis) laboratory

The memory (and hypnosis) lab at the University of New South Wales investigates a broad range of memory topics. We try to find innovative methods from cognitive and clinical psychology to address theoretical and empirical questions about memory. We aso use hypnosis as one major methodological tool in our investigations of memory (as well as other cognitive processes). In this paper, we review the projects currently underway in our memory (and hypnosis) lab.

A learning laboratory approach for business improvement : the case of discontinuous innovation

This paper considers the current situation within Australian manufacturing SMEs and their approaches to innovation and international competitive advantage. Using the viewpoint and language of complexity theory, we consider the variety of possibilities available to SMEs in this area. We then consider a particular international project on Discontinuous Innovation, how this has been deployed in Europe and Australia and the knowledge gained from our interactions with Australian SMEs to date around this project. Finally we consider the general development of a “Learning Laboratory” approach to working with SMEs and the differences required to make such approach successful in Europe and in different settings in Australia.

The advancing science by enhancing learning in the laboratory (ASELL) project : the next chapter

Most researchers agree that the laboratory experience ranks as a significant factor that influences students’ attitudes to their science courses. Consequently, good laboratory programs should play a major role in influencing student learning and performance. The laboratory program can be pivotal in defining a student's experience in the sciences, and if done poorly, can be a major contributing factor in causing disengagement from the subject area. The challenge remains to provide students with laboratory activities that are relevant, engaging and offer effective learning opportunities. The Advancing Science by Enhancing Learning in the Laboratory (ASELL) project has developed over the last 10 years with the aim of improving the quality of learning in undergraduate laboratories, providing a validated means of evaluating the laboratory experience of students and effective professional development for academic staff. After successful development in chemistry and trials using the developed principles in physics and biology, the project has now expanded to include those disciplines. This paper will discuss the activities of ASELL and provide a report about the first ASELL science workshop held at the University of Adelaide in April 2010.

Bioanalytical experiments for the undergraduate laboratory : monitoring glucose in sports drinks

This paper describes two complementary bioanalytical experiments for analyzing the concentration of glucose in sports drinks. The first experiment is a spectrophotometric enzyme assay employing the enzymes glucose oxidase (GOx) and horseradish peroxidase (HRP). The glucose is oxidized by the GOx, producing hydrogen peroxide, which is the substrate for HRP. In the reduction of the H2O2 a chromogen is oxidized, causing a color change. In the partner experiment, the GOx is immobilized on a platinum electrode using a dialysis membrane. The hydrogen peroxide produced in the enzyme reaction is monitored amperometrically by oxidizing the hydrogen peroxide produced. The simple method of preparing the enzyme electrode is useful in demonstrating the important parameters in defining the response of enzyme electrodes. The same sports drinks are analyzed in both experiments. The two experiments together illustrate the advantage of bioanalysis in analyzing complex samples with minimal sample preparation.

Unusual suspects : a newspaper's coverage of a scuba diving rescue and journalism's role in narrating Australia

Brisbane’s Courier-Mail newspaper ran a fantastic story a couple of years ago about a couple left at sea behind by their tour boat, after going scuba diving. The story suggested American diver Allyson Dalton and her British partner Richard Neely ignored advice when they ventured away from a lagoon where the tour boat was anchored. But the focus was on how Neely and Dalton survived by treading water for 19 hours at Paradise Reef, part of Queensland’s Great Barrier Reef, not so much (yet) on how fortunate they were not to be attacked by sharks. It would not be long, however, before that old journalistic maxim that implores practitioners to ‘question every assertion, doubt every claim’ shaped the reportage into an extended narrative about chequebook journalism, credibility, and culpability.

The scuba dive rescue story analysis presented here reflects contemporary journalism’s role in the formation of ideas about cultural value and character, and in more complex determinations of who gets a participatory stake in the formation of national narratives. As such, the article concludes with some signposts toward a critical approach to journalism-centred studies of culture in Australia.