In the present study, following the measurement of methane emissions from 160 mature ewes three times, a subset of twenty ewes was selected for further emission and physiological studies. Ewes were selected on the basis of methane yield (MY; g CH4/kg DM intake) being low (Low MY: >1 sd below the mean; n 10) or high (High MY: >1 sd above the mean; n 10) when fed a blended chaff ration at a fixed feeding level (1·2-fold maintenance energy requirements). The difference between the Low- and High-MY groups observed at the time of selection was maintained (P= 0·001) when remeasured 1–7 months later during digesta kinetics studies. Low MY was associated with a shorter mean retention time of particulate (P< 0·01) and liquid (P< 0·001) digesta, less amounts of rumen particulate contents (P< 0·01) and a smaller rumen volume (P< 0·05), but not apparent DM digestibility (P= 0·27) or urinary allantoin excretion (P= 0·89). Computer tomography scanning of the sheep's rumens after an overnight fast revealed a trend towards the Low-MY sheep having more clearly demarcated rumen gas and liquid phases (P= 0·10). These findings indicate that the selection of ruminants for low MY may have important consequences for an animal's nutritional physiology.

Background: More effective psychological treatments for psychosis are required. Case series data and pilot trials suggest metacognitive therapy (MCT) is a promising treatment for anxiety and depression. Other research has found negative metacognitive beliefs and thought-control strategies may be involved in the development and maintenance of hallucinations and delusions. The potential of MCT in treating psychosis has yet to be investigated. Aims: Our aim was to find out whether a short number of MCT sessions would be associated with clinically significant and sustained improvements in delusions, hallucinations, anxiety, depression and subjective recovery in patients with treatment-resistant long-standing psychosis. Method: Three consecutively referred patients, each with a diagnosis of paranoid schizophrenia and continuing symptoms, completed a series of multiple baseline assessments. Each then received between 11 and 13 sessions of MCT and completed regular assessments of progress, during therapy, post-therapy and at 3-month follow-up. Results: Two out of 3 participants achieved clinically significant reductions across a range of symptom-based outcomes at end-of-therapy. Improvement was sustained at 3-month follow-up for one participant. Conclusions: Our study demonstrates the feasibility of using MCT with people with medication-resistant psychosis. MCT was acceptable to the participants and associated with meaningful change. Some modifications may be required for this population, after which a controlled trial may be warranted.

Improving health through better nutrition of the population may contribute to enhanced efficiency and sustainability of healthcare systems. A recent expert meeting investigated in detail a number of methodological aspects related to the discipline of nutrition economics. The role of nutrition in health maintenance and in the prevention of non-communicable diseases is now generally recognised. However, the main scope of those seeking to contain healthcare expenditures tends to focus on the management of existing chronic diseases. Identifying additional relevant dimensions to measure and the context of use will become increasingly important in selecting and developing outcome measurements for nutrition interventions. The translation of nutrition-related research data into public health guidance raises the challenging issue of carrying out more pragmatic trials in many areas where these would generate the most useful evidence for health policy decision-making. Nutrition exemplifies all the types of interventions and policy which need evaluating across the health field. There is a need to start actively engaging key stakeholders in order to collect data and to widen health technology assessment approaches for achieving a policy shift from evidence-based medicine to evidence-based decision-making in the field of nutrition.

Evidence regarding overestimation of the efficacy of antipsychotics and underestimation of their toxicity, as well as emerging data regarding alternative treatment options, suggests it may be time to introduce patient choice and reconsider whether everyone who meets the criteria for a schizophrenia spectrum diagnosis requires antipsychotics in order to recover.

Background: Cognitive behavioural therapy (CBT) can be helpful for many people who experience psychosis; however most research trials have been conducted with people also taking antipsychotic medication. There is little evidence to know whether CBT can help people who choose not to take this medication, despite this being a very frequent event. Developing effective alternatives to antipsychotics would offer service users real choice. Aims: To report a case study illustrating how brief CBT may be of value to a young person experiencing psychosis and not wishing to take antipsychotic medication. Method: We describe the progress of brief CBT for a young man reporting auditory and visual hallucinations in the form of a controlling and dominating invisible companion. We describe the formulation process and discuss the impact of key interventions such as normalising and detached mindfulness. Results: Seven sessions of CBT resulted in complete disappearance of the invisible companion. The reduction in frequency and duration followed reduction in conviction in key appraisals concerning uncontrollability and unacceptability. Conclusions: This case adds to the existing evidence base by suggesting that even short-term CBT might lead to valued outcomes for service users experiencing psychosis but not wishing to take antipsychotic medication.

This paper considers the impact that a number of Australian emergency management policy and operational decisions are having on residential aged care facilities located in the community. For example, all residential aged care facilities applying for new federal government funded aged care places are required to demonstrate a plan for environmental disaster threats such as bushfires and floods. Another example is the adoption of new fire danger rating scale, with the inclusion of an extreme level called “catastrophic”-code red. This inclusion requires all services and community members, living in bushfire-prone areas to decide whether or not to evacuate the day before or morning of a Bureau of Meteorology fire danger index indicating a code red. There is evidence that these policy and operational decisions have been made without fully examining the practical implications, particularly for aged care facilities. While many of the facilities on which these decisions impact see the rational for such decisions, they argue that these decisions have serious implications for their services and patients. Many residential aged care facilities, which are privately operated, historically have not been involved in any state or local government emergency management planning. Therefore, the whole concept of risk assessment, preparation, and planning to increase the absorbing, buffering, and response capacity of their facilities against extreme weather events has become quite overwhelming for some. This paper presents a case study that demonstrates the tension between emergency management policy decisions on an aged care facility, and outlines their issues and response.

Following the devastating March 2009 Victorian bushfire disaster in rural areas of Australia, authorities reviewed strategies designed to protect communities during periods of extreme fire risk. New policy and regulation were introduced and designed to ensure that small rural communities were protected and prepared to confront a wildfire emergency during days of extreme heat or bushfire risk weather. As a result on days of declared ‘catastrophic’ bushfire weather conditions government agencies in South Australia have implemented a policy for schools (including pre-schools) to be temporarily closed. On these days community members are advised to evacuate early to safe regional centres, and to limit travel on country roads. The WADEM Guidelines for Disaster Evaluation and Research demonstrate that Basic Societal Functions (BSFs), such as education, health, transport and others, are interconnected and interdependent. For example in small rural communities in South Australia people may have a number of important roles including being parents, volunteers of emergency services while also being employed as staff of local hospitals. This project reviewed the impact of school closures and other protective measures on the availability of the rural nursing workforce and on rural hospitals. Rural hospitals in Australia are staffed, on average, by 2–8 nurses, service very small communities and are separated by great distances. As a result, small changes in the absentee rate for nurses can have a significant impact on the operation of these hospitals. This paper will argue that policy changes in other sectors, such as education, can impact on societal activities such as childcare, volunteer emergency service work, and hospital staffing, in ways that may not be anticipated unless the impact on all Basic Societal Functions are considered by policymakers.

The physicality of mass gatherings has been well described in the literature. The factors effecting the rate of illness and injury at mass gatherings have been well described and include the type and duration of the event, the type and age of crowd, and the availability of drugs and alcohol. In 2004 Arbon proposed a conceptual model that describes the relationship between the environmental, psychosocial and the biomedical domains of mass gatherings. However to date the science of mass gatherings has focussed on the environmental and biomedical domains. There is minimal evidence to support or describe the psychosocial domain. Current tools available to assess the psychosocial domain are scarce even though it is considered an integral part of a mass gathering event. Berlonghi (1995) and Zietz (2009) proposed two measurements, crowd type and crowd mood respectively. This paper reports on a pilot project undertaken to evaluate how effective these tools are to understand the psychosocial domain of a mass gathering event.

There is a new merging of health economics and nutrition disciplines to assess the impact of diet on health and disease prevention and to characterise the health and economic aspects of specific changes in nutritional behaviour and nutrition recommendations. A rationale exists for developing the field of nutrition economics which could offer a better understanding of both nutrition, in the context of having a significant influence on health outcomes, and economics, in order to estimate the absolute and relative monetary impact of health measures. For this purpose, an expert meeting assessed questions aimed at clarifying the scope and identifying the key issues that should be taken into consideration in developing nutrition economics as a discipline that could potentially address important questions. We propose a first multidisciplinary outline for understanding the principles and particular characteristics of this emerging field. We summarise here the concepts and the observations of workshop participants and propose a basic setting for nutrition economics and health outcomes research as a novel discipline to support nutrition, health economics and health policy development in an evidence and health-benefit-based manner.

Lactic acidosis is a major welfare issue affecting animal health and production systems such as dairy and feedlot beef. We used two bioassays to identify bioactive plants of Australia with the potential to prevent acidosis in ruminants. In the first bioassay, a potentially acidotic environment was induced by adding glucose to rumen fluid and pH and gas production were used to estimate the effect on acid production and microbial fermentation after 5-h incubation. Australian plants (n = 104) were screened for their ability to prevent a decline in the pH without inhibiting normal gas production, and five plants namely Eremophila glabra, Kennedia eximia, Acacia saligna, Acacia decurrens and Kennedia prorepens with such properties were identified. We investigated further the two top ranking plants, E. glabra and K. prorepens, in the second bioassay to determine the extent of their effect in vitro, by extending the incubation to 24 h and measuring d-lactate, and volatile fatty acids (VFA) in addition to pH and gas production. These were measured at 0, 5, 10, 16 and 24 h after inoculation. Eremophila glabra maintained pH values that were higher and d-lactate concentrations that were lower than the control (P < 0.001), and comparable to the antibiotic-protected environment (AB; 12 μg of virginiamycin/ml). Eremophila glabra and AB treatments did not restrict fermentation, as judged by gas production and VFA. Kennedia prorepens slowed the decline in pH and reduced the accumulation of lactate but inhibited gas production. We concluded that, in vitro, E. glabra was effective at controlling events that can lead to acidosis and the effect was comparable to that of virginiamycin, while K. prorepens was less effective than E. glabra and also inhibited fermentation.

Cornwall (UK) has suffered extensive arsenic contamination due to the historic mining and processing of mineral ores. Standard procedures for contaminated land risk assessment (DEFRA and Environment Agency, 2002a) are probably unworkable in Cornwall, with a very large number of sites classified as contaminated by arsenic. Methods of measuring the speciation and mobility of arsenic are essential for effective and rapid risk assessments of arsenic contamination.

Three clusters of lysimeters were installed in three different areas of an arsenic-contaminated Cornish site. A novel phosphoric acid microwave extraction technique was applied to the soils removed from the lysimeter holes; HPLC-HG-AFS analysis showed the majority of solid-phase arsenic to be arsenate (AsV). Pore waters obtained from the lysimeters showed variable, relatively low levels of arsenite (AsIII) and arsenate (AsV) to be present (<1–129 μg l–1). Less toxic arsenate predominated in most pore waters, with the presence of minor amounts of arsenite suggesting heterogeneous redox conditions. Pore-water arsenic concentrations were strongly positively related to solid-phase arsenate concentrations.

The use of techniques that assess the speciation of arsenic both in the solid and aqueous phases of a soil provides important information about the mobility of arsenic. The methodology presented in this paper may offer a novel basis for risk assessments of other contaminated sites.