Changing from primary to secondary school highlights opportunities for school environment interventions aiming to increase physical activity and reduce sedentary behaviour: a longitudinal cohort study.

BACKGROUND: There is little empirical evidence of the impact of transition from primary to secondary school on obesity-related risk behaviour. The purpose of this study was to examine the effect of a change of school system on physical activity (PA) and sedentary behaviour in pre-early adolescents. METHODS: Fifteen schools in Victoria, Australia were recruited at random from the bottom two strata of a five level socio-economic scale. In nine schools, students in year 6 primary school transitioned to a different school for year 7 secondary school, while in six schools (combined primary-secondary), students remained in the same school environment from year 6 to year 7. Time 1 (T1) measures were collected from students (N=245) in year 6 (age 11-13). Time 2 (T2) data were collected from 243 (99%) of the original student cohort when in year 7. PA and sedentary behaviour data were collected objectively (via ActiGraph accelerometer) and subjectively (via child self-report recall questionnaire). School environment data were collected via school staff survey. Change of behaviour analyses were conducted longitudinally i) for all students and ii) by change/no change of school. Mixed model regression analysis tested for behavioural interaction effects of changing/not changing school. RESULTS: Sixty-three percent (N=152) changed schools from T1 to T2. Across all students we observed declines in average daily moderate to vigorous physical activity (MVPA) (-4 min) and light PA (-23 min), and increases in average daily sedentary behaviour (16 min), weekday leisure screen time (17 min) and weekday homework screen time (25 min), all P<0.05. Compared to students who remained in the same school environment, students who changed school reported a greater reduction in PA intensity at recess and lunch, less likelihood to cycle to/from school, greater increase in weekday (41 mins) and weekend (45 mins) leisure screen time (P<0.05) and greater encouragement to participate in sport. School staff surveys identified that sport participation encouragement was greater in primary and combined primary-secondary than secondary schools (P<0.05). CONCLUSION: Transitioning from primary to secondary school negatively impacts on children's PA and sedentary behaviour, and has further compounding effects on behaviour type by changing school environments.

Changes, challenges, and successes facing secondary pre-service teacher education in Australia

In December 2008, the Australian Government was presented with a report from a Review of Australian HigherEducation known as the ‘Bradley Review’. The report clearly articulates many challenges that lie ahead; it questions thestructure, organisation and financial position of Australia to effectively compete in the global economy. This paperprovides a succinct discussion of some of the challenges and dilemmas encountered at a metropolitan Australianuniversity in Melbourne within the Faculty of Arts and Education in the School of Education. The courses will bereaccredited in 2016 and has to comply with the new Australian Qualification Framework (AQF), the AustralianTeaching Standards Framework (AITSL) and the Victorian Institute of Teaching (VIT). By employing narrative inquiry,reflective practice and document analysis as methodology, I discuss the Bachelor of Teaching (Secondary)/Bachelor ofArts course (degree), the largest secondary pre-service teacher education course at a university in Melbourne presentingsome strategies and inviting international dialogue in relation to some of the challenges faced regarding increasednumbers of students and lower entrance scores. Limitations of the current course are acknowledged and generalizationscannot be made to other education courses at universities across Australia. However, some new initiatives in the facultyare offered.

Teachers’ aides working in secondary school settings: preparedness and professional learning

In Victoria, Australia teachers’ aides (TAs) are employed to provide support to students with disabilities in accessing their education. The role of the TAs varies within and across school settings. Drawing from the findings of a quantitative study, the purpose of this paper is to develop an understanding of teachers’ aides’ perceptions of their preparedness to perform 18 student-related tasks within the state secondary school setting in Victoria, Australia. In all, 163 participants completed the on-line questionnaire. The results of the study showed that that in general TAs perceive there are tasks relevant to their roles in supporting students with disabilities; and there are tasks that are not applicable to that role. The TAs in this study considered that they had training that enabled them to effectively perform the listed student related tasks to support students with disabilities in the secondary school environment.

An analysis of the role of teachers’ aides in a state secondary school: perceptions of teaching staff and teachers’ aides

In Victoria, Australia, one of the major roles of the teachers’ aide (TA) is to assist students with disabilities to access their education. Researchers have identified the inconsistencies in defining the roles of the TA, in a variety of settings, by TAs, teachers, parents, and other research participants. Four main themes that have been frequently reported in educational research related to the role of TAs formed the basis for this study: (a) inclusion in the school community, (b) curriculum, (c) classroom management, and (d) student support. Drawing on the results of a questionnaire administered to teachers and TAs at a government nonselective secondary school in Victoria, Australia, data were collected to explore the differing perspectives on the role of the TAs by the teaching staff and the TAs. In all, 65 individuals participated in this study. The participants formed 3 groups: TAs (n = 10), teachers (n = 49), and T/TAs (n = 6; participants in this group had worked as both a teacher and TA). The results of the study showed a diversity of views across the 4 themes. In 3 of the 4 themes that included inclusion, classroom management, and student support, the 3 groups agreed on the role of the TA. In the remaining theme, curriculum, opinions varied significantly. The results of the study reveal that a concerted effort to clarify the role of TAs would be beneficial to all stakeholders.

Txeemsim and a journey of transformation— decolonizing post-secondary education

Colleges are the product of colonial government policies that established and support mainstream educational models. Eurocentric perspective dominates all aspects of these institutions and is frequently un-yielding to Indigenous perspectives, values and educational approaches. This thesis outlines the transformation change of one College to incorporate and honour the Indigenous paradigm.

Mechanisms and treatment of cardiac atrophy secondary to cancer cachexia

 This project found that oxidative stress and activation of pro-inflammatory molecules is a feature of heart protein loss secondary to cancer wasting. Treatment with an omega-3 fatty acid is able to protect against heart muscle loss in cancer by reducing gene transcripts of both pro-inflammatory and oxidative molecules.

Mycorrhizal elicitation of secondary metabolites in hairy roots of Ocimum basilicum

 Mycorrhiza, a symbiotic soil fungus was identified as a biotic elicitor of antioxidant compounds found in the plant roots. In vitro developed technique and bioresources carry potential towards formation of biological and biochemical factories for application in the agricultural and pharmaceutical industries.

Improvement of charge/discharge properties of oligoether electrolytes by zwitterions with an attached cyano group for use in lithium-ion secondary batteries

Zwitterions with a cyano group on the side chain (CZ) were synthesized. Although the addition of CZ caused a slightly negative effect on viscosity, ionic conductivity, limiting current density, and lithium transference number, the oxidation limit of PEGDME/lithium bis(trifluoromethylsulfonyl)amide (LiTFSA) composites was improved to over 5 V. For charge/discharge testing using Li|electrolyte|LiCoO2 cells, the cycle stability of PEGDME/LiTFSA with CZ in the voltage range of 3.0-4.6 V was much higher than that of PEGDME/LiTFSA. Incorporating a small mole fraction of CZ into PEGDME-based electrolytes prevented an increase in the interface resistance between the electrolyte and cathode with increasing numbers of the cycle.

Multi-output interval type-2 fuzzy logic system for protein secondary structure prediction

A new multi-output interval type-2 fuzzy logic system (MOIT2FLS) is introduced for protein secondary structure prediction in this paper. Three outputs of the MOIT2FLS correspond to three structure classes including helix, strand (sheet) and coil. Quantitative properties of amino acids are employed to characterize twenty amino acids rather than the widely used computationally expensive binary encoding scheme. Three clustering tasks are performed using the adaptive vector quantization method to construct an equal number of initial rules for each type of secondary structure. Genetic algorithm is applied to optimally adjust parameters of the MOIT2FLS. The genetic fitness function is designed based on the Q3 measure. Experimental results demonstrate the dominance of the proposed approach against the traditional methods that are Chou-Fasman method, Garnier-Osguthorpe-Robson method, and artificial neural network models.

The longitudinal effects of adolescent volunteering on secondary school completion and adult volunteering

 This study explores the longitudinal effect of adolescent volunteering behaviour on young adult volunteering and the completion of secondary school. Utilising data from the Australian sample of the International Youth Development Study, frequency of volunteering in Grade 9 (mean age = 15 years) and in young adulthood (mean age = 21 years), and completion of secondary school were measured. Mixed effect logistic regression analyses revealed that adolescent volunteering was associated with an increased likelihood of volunteering in young adulthood (Odds Ratio [OR] 1.29; 95% Confidence Interval [CI] 1.20–1.39; N = 2,648) and of Grade 12 completion (OR 1.14; CI 1.03–1.28; N = 2,648), after controlling for family socioeconomic status and adolescent school adjustment. These findings suggest that adolescent volunteering may lead to further involvement in young adult volunteering and have a positive effect on school completion.

Australian children's independent mobility levels: secondary analyses of cross-sectional data between 1991 and 2012

This study investigated changes in Australian children's independent mobility levels between1991 and 2012. Data from five cross-sectional studies conducted in 1991, 1993, 2010, 2011 and 2012 were analysed. Parent and child surveys were used to assess parental licences for independent mobility and actual independent mobility behaviour in children aged 8–13 years. Findings show declines in the proportion of young children (≤10 years of age) being allowed to travel home from school alone (1991: 68%, 1993: 50%, 2010: 43%, 2011: 45%, 2012: 31%) and travel on buses alone (1991: 31%, 1993: 15%, 2010: 8%, 2011: 6%, 2012: 9%). Furthermore, the proportion of children travelling independently to school decreased (1991: 61%, 1993: 42%, 2010: 31%, 2011: 32%, 2012: 32%). Significantly fewer girls than boys travelled independently to school at each time point (p ≤ .001). Overall, the findings suggest that Australian children's independent mobility levels declined between 1991 and 2012.