The pedagogy of using video to develop reflective practice in learning to teach science

Purpose The purpose of this chapter is to identify the pedagogical approaches that foster critical reflection using video among the preservice teachers during tutorials. Methodology/approach The research is situated in a school-based teaching programme in which pairs of pre-service teachers taught small groups of primary aged children over a period of seven weeks. Volunteer pre-service teachers videotaped their lessons and selected video excerpts to share with their peers in the tutorial. The educator guided the preservice teachers’ reflection using the video. A case study drawing on interviews with pre-service teachers and audio recordings of tutorials, charted the development of pedagogical decisions made by the educators to promote reflection.Findings The pre-service teachers had difficulties undertaking deep reflection of their own and peers’ teaching practice. The response by educators was to promote collaboration among pre-service teachers by discussing specific aspects of the teaching in small groups and to use a jigsaw approach. This enabled a deeper analysis of particular elements of the lesson that were then integrated to produce a more holistic understanding of the teaching. The video data is most suitable for reflection and provides valuable evidence for pre-service teachers to develop their practice. Practical implications For pre-service teachers to develop effective skills to analyse their own practice they need to experience teaching in a safe but challenging environment, over a sustained period; have opportunities to develop a shared understanding of what constitutes quality teaching; have opportunities to critically analyse their teaching in discussion with peers and educators and be able to be guided by a framework of reflective strategies.

An Aboriginal obligation to Country: challenging the status quo

Australian Aboriginal Traditional Owner ancestral responsibilities to Country involves listening and exercising vested responsibilities and duties of care, passed down from generation to generation through clan and familial connections. Traditional Owners is a term used to describe today’s descendants of the original Aboriginal inhabitants and have ongoing cultural and spiritual connections to land and water where their ancestors lived. The incorporation of Traditional Owner relationships to Country and the need to engage with Traditional Owners in Western planning regimes are often expressed positively; that Aboriginal needs and aspirations need to be recognized in the urban landscape. However in practice, decisions involving the address of Aboriginal aspirations are usually made in a generic context rather than a Country and knowledge specific context. This can have adverse effects on obligations to Country stewardship, and Custodial perceptions are being ignored and negated. Improving our understanding of how Traditional ancestral obligations to Country are expressed and embodied within the context of generic Western planning instruments, is critical as cities expand and increase the pressures and threats on Traditional Owners Country, their resources, their cultural heritage, their knowledge and their histories. This paper contributes to this understanding by focusing upon Traditional Owner communities in the Brisbane metropolitan region who are attempting to address their responsibility to Country through Western State and local planning instruments. This paper draws on empirical data collected through interviews and observations between 2013-2015 with the Quandamooka communities and a content analysis of current planning instruments. The paper reports on their obligations of and to Country and the consequences that engagement within Western planning instruments has had upon their Traditional Ownership well-being and landscape health. Lessons learned from this case study are discussed to offer future planning policy initiatives that could better meet the needs of Traditional Owners in Australian cities.

A syntenic cross species aneuploidy genetic screen links RCAN1 expression to β-cell mitochondrial dysfunction in Type 2 diabetes

Type 2 diabetes (T2D) is a complex metabolic disease associated with obesity, insulin resistance and hypoinsulinemia due to pancreatic β-cell dysfunction. Reduced mitochondrial function is thought to be central to β-cell dysfunction. Mitochondrial dysfunction and reduced insulin secretion are also observed in β-cells of humans with the most common human genetic disorder, Down syndrome (DS, Trisomy 21). To identify regions of chromosome 21 that may be associated with perturbed glucose homeostasis we profiled the glycaemic status of different DS mouse models. The Ts65Dn and Dp16 DS mouse lines were hyperglycemic, while Tc1 and Ts1Rhr mice were not, providing us with a region of chromosome 21 containing genes that cause hyperglycemia. We then examined whether any of these genes were upregulated in a set of ~5,000 gene expression changes we had identified in a large gene expression analysis of human T2D β-cells. This approach produced a single gene, RCAN1, as a candidate gene linking hyperglycemia and functional changes in T2D β-cells. Further investigations demonstrated that RCAN1 methylation is reduced in human T2D islets at multiple sites, correlating with increased expression. RCAN1 protein expression was also increased in db/db mouse islets and in human and mouse islets exposed to high glucose. Mice overexpressing RCAN1 had reduced in vivo glucose-stimulated insulin secretion and their β-cells displayed mitochondrial dysfunction including hyperpolarised membrane potential, reduced oxidative phosphorylation and low ATP production. This lack of β-cell ATP had functional consequences by negatively affecting both glucose-stimulated membrane depolarisation and ATP-dependent insulin granule exocytosis. Thus, from amongst the myriad of gene expression changes occurring in T2D β-cells where we had little knowledge of which changes cause β-cell dysfunction, we applied a trisomy 21 screening approach which linked RCAN1 to β-cell mitochondrial dysfunction in T2D.

Compliance to exercise-oncology guidelines in prostate cancer survivors and associations with psychological distress, unmet supportive care needs, and quality of life

Objective The purpose of this study was to determine prevalence of Australian prostate cancer survivors meeting contemporary exercise-oncology guidelines and identify associations with distress, unmet supportive care needs, and quality of life. Methods A population-based cohort of 463 prostate cancer survivors who were on 10.8 months post-curative therapy was assessed for compliance with current exercise guidelines for cancer survivors, motivational readiness for physical activity, psychological distress, unmet supportive care needs, and quality of life. Results Only 57 men (12.3%) reported sufficient exercise levels (150 min of moderate intensity or 75 min of strenuous exercise per week and twice weekly resistance exercise), 186 (40.2%) were insufficiently active, and 220 (47.5%) were inactive. Among inactive men, 99 (45.0%) were in the contemplation or preparation stage of motivation readiness. Inactive men had higher global distress (p=0.01) and Brief Symptom Inventory-Anxiety (p<0.05) than those who were insufficiently active. Total Supportive Care Needs and International Prostate Cancer Symptom scores were higher in inactive than insufficiently and sufficiently active men (p<0.05). Lack of physical activity contributed to poorer quality of life. Conclusions Only a small proportion of Australian prostate cancer survivors met contemporary exercise-oncology recommendations despite increasing recognition of exercise to improve patient outcomes. Strategies are urgently required to increase prostate cancer survivors' participation in aerobic and resistance exercise training.

Proximate cues to phases of movement in a highly dispersive waterfowl, anas superciliosa

BACKGROUND: Waterfowl can exploit distant ephemeral wetlands in arid environments and provide valuable insights into the response of birds to rapid environmental change, and behavioural flexibility of avian movements. Currently much of our understanding of behavioural flexibility of avian movement comes from studies of migration in seasonally predictable biomes in the northern hemisphere. We used GPS transmitters to track 20 Pacific black duck (Anas superciliosa) in arid central Australia. We exploited La Niña conditions that brought extensive flooding, so allowing a rare opportunity to investigate how weather and other environmental factors predict initiation of long distance movement toward freshly flooded habitats. We employed behavioural change point analysis to identify three phases of movement: sedentary, exploratory and long distance oriented movement. We then used random forest models to determine the ability of meteorological and remote sensed landscape variables to predict initiation of these phases. RESULTS: We found that initiation of exploratory movement phases is influenced by fluctuations in local weather conditions and accumulated rainfall in the landscape. Initiation of long distance movement phases was found to be highly individualistic with minor influence from local weather conditions. CONCLUSIONS: Our study reveals how individuals utilise local conditions to respond to changes in resource distribution at broad scales. Our findings suggest that individual movement decisions of dispersive birds are informed by the integration of multiple weather cues operating at different temporal and spatial scales.