Dietitians' interests in primary food production: opportunities for greater involvement in the promotion of environmental sustainability

Dietitians are food communication professionals. Little is known about their views of food sustainability and security or of their interest in learning more about these issues. Therefore, an online survey of members of the Dietitians’ Association of Australia was conducted during the first half of 2012 about these issues.

Policing services with mentally ill people : developing greater understanding and best practice

Although it is now well known that there is a disproportionate number of people with mental illnesses in the criminal justice system, surprising little attention has been paid to the challenges faced by policing people with mental illnesses in the community. This article provides an overview of some of the key findings from a programme of research undertaken in Victoria to further understand and develop a best practice model at this interface. The areas covered will include the prevalence of psychiatric symptoms and mental illnesses among police cell detainees; the existing knowledge base and attitudes of police towards mentally ill people; the relationship between mental illness and offending; the frequency and nature of police apprehensions of mentally ill people under the Mental Health Act; the association among mental disorder, police shootings, and other injuries to people as a result of these encounters; and police interactions with victims of crime. The work highlights the need for ongoing improvements in policing people with mental illnesses, and particularly the need for improved inter-agency practices for dealing with them.

Greater cognitive effort for better learning : tailoring an instructional design for learners with different levels of knowledge and motivation

The capacity limitation of working memory is a widely recognised determinant of human learning. A cognitive load exceeding the capacity hampers learning. Cognitive load can be controlled by tailoring an instructional design to levels of learner prior knowledge. However, such as design does not necessarily motivate to use the available capacity for better learning. The present review examines literatures on the effects of instructional design, motivation, emotional state, and expertise level on cognitive load and cognitive effort, which ultimately affect working memory performance and learning. This examination suggests further studies on the effects of motivation and negative emotional states on the use of working memory. Prospective findings would help better explain and predict individual differences in the use of working memory for cognitive learning and task performance.

Greater effect of diet than exercise training on the fatty acid profile of rat skeletal muscle

We determined the interaction of diet and exercise-training intensity on membrane phospholipid fatty acid (FA) composition in skeletal muscle from 36 female Sprague-Dawley rats. Animals were randomly divided into one of two dietary conditions: high-carbohydrate (64.0% carbohydrate by energy, n = 18) or high fat (78.1% fat by energy, n = 18). Rats in each diet condition were then allocated to one of three subgroups: control, which performed no exercise training; low-intensity (8 m/min) treadmill run training; or high-intensity (28 m/min) run training. All exercise-trained rats ran 1,000 m/session, 4 days/wk for 8 wk and were killed 48 h after the last training bout. Membrane phospholipids were extracted, and FA composition was determined in the red and white vastus lateralis muscles, Diet exerted a major influence on phospholipid FA composition, with the high-fat diet being associated with a significantly (P < 0.01) elevated ratio of n-6/n-3 FA for both red (2.7-3.2 vs. 1.0-1.1) and white vastus lateralis muscle (2.5-2.9 vs. 1.2). In contrast, alterations in FA composition as a result of either exercise-training protocol were only minor in comparison. We conclude that, under the present experimental conditions, a change in the macronutrient content of the diet was a more potent modulator of skeletal muscle membrane phospholipid FA composition compared with either low- or high-intensity treadmill exercise training.