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Despite well-established benefits, the majority of young people around the globe are not sufficiently active. In many countries, including Australia, physical activity (i.e. physical education and school sport) is not mandatory in the final two years of high school (i.e. senior school years). The aim of this study was to assess the impact of a time-efficient physical activity intervention on senior school students’ on-task behaviour and subjective vitality. This was a sub-study of the Burn 2 Learn (B2L) cluster randomised controlled trial, which included two cohorts. Participants for this sub-study (N = 221) were from 10 secondary schools (23 classes) located in New South Wales, Australia (Cohort 2). Teachers allocated to the B2L intervention group were provided with training, resources and support to facilitate the delivery of two high-intensity activity breaks per week during lesson time for five weeks. A wait-list control was used as comparison group. On-task behaviour was assessed at baseline and post-test, using a momentary time sampling procedure and expressed as a percentage of lesson time. At post-test, subjective vitality was assessed at the start and end of the lesson using a validated questionnaire. Significant group-by-time effects were observed for students’ on-task behaviour in favour of the B2L group [adjusted mean difference = 19.3% of lesson time (95% CI, 0.8 to 37.8), p = 0.042, d = 0.43]. At post-test, significant group-by-time effects were observed for students’ subjective vitality favouring the B2L group [adjusted mean difference = 0.67 units (95% CI, 0.3 to 1.0), p < 0.001, d = 0.36]. The B2L intervention was successful in improving senior school students’ on-task behaviour and their subjective vitality. These findings highlight the potential academic benefits of re-allocating curriculum time to physical activity during the senior school years.

The current geopolitical climate is one which has seen a renewed state of tensions in the relationship between the United States and the Russian Federation dating to 2014 and Russia’s annexation of Ukrainian territory. This current state of geopolitical tensions has led many to question: are we in a state of New Cold War today? If so, today’s Cold War may be defined by the advancement of cyber capabilities and the use of propaganda and misinformation. How will this be the defining factor in the New Cold War? Through a comprehensive DIME analysis of the Russian Federation, the United States, and American allies in the West, this thesis makes the argument that there is indeed a new Cold War and offers qualitative analysis and policy recommendations in the face of this new threat.

The ‘Wretched Petitioners’: Jamaican Maroon’s Petitions, 1795-1800 In 1795 the Jamaican Maroons from Trelawney Town revolted against the British. The rebellion was short lived but sent shockwaves across the Island that saw the British Governor, Lord Balcarres, gather the Assembly of Jamaica and order the removal of the rebellious Maroons. The Jamaican Maroons responded to Barclarres, not with renewed violence, but with British legal strategies by employing petitions in order to try and salvage their stay on the Island. Sic Semper Tyrannis: Catiline and Caesar in Early American Insults, Allusions, and The Whiskey Rebellion, 1789-1804 The use of classical allusions in Early America was commonplace amongst elites. But the way these allusions were employed as insults during the Whiskey Rebellion helps to better understand what was at stake for both the rebels and the government trying to crush them.