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Caffeine, CYP1A2 Genotype, and Exercise Performance: A Systematic Review and Meta-analysis
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Playing the game of selectivity: The normalisation of merit and invisibilisation of advantage in students’ admission into competitive schools
Get PDFStudents’ beliefs in schooling to achieve opportunity have been well documented in the school choice literature. How students make sense of successful entry into competitive and high-demand schools via high-stakes entrance exams is less researched. High-demand schools, including both public and private schools, can utilise entrance exams to enrol their students. This paper aims to contribute empirical and conceptual insights into school selectivity by tracing the experiences of students as they navigate exams into selective and high-fee private schools, to broaden understandings of how competitive school admissions processes can impact students. Interviews reveal that many students are motivated to achieve occupational opportunities through admission into competitive schools. Influenced by their families, all participants undergo private tutoring and exam coaching to prepare for entrance exams, from a few months to 8 years. Long-term tutoring, repetitive test-taking and applying for multiple high-demand schools both simultaneously and consecutively constitute ‘playing the game of selectivity’, an experience from which students develop conceptions of merit that normalises these processes. Such conceptions of merit include individualistic strategies that render invisible their own sense of economic advantage relative to others
“Our Right to Play”: How Afghan Women Navigate Constraints, Agency, and Aspirations On and Off the Soccer Field
Get PDFThe effectiveness of multidisciplinary, activity-based chronic pain interventions for adults of ethnoculturally diverse backgrounds: a systematic review with meta-analysis
No full textClassification of Force-Time Metrics into Lower-Body Strength Domains
No full textThe purpose of this study was to classify force-Time metrics into distinct lower-body strength domains using a systematic data reduction analysis. A cross-sectional design was used, whereby competitive field sport athletes (F = 39, M = 96) completed a series of drop jumps, squat jumps, countermovement jumps (CMJs), loaded CMJs, and 2 isometric tasks on portable force platforms, resulting in a total of 285 force-Time performance metrics. The metrics were split into 4 test "families"and each was entered into a sparse principal component analysis (sPCA) model. A single metric from each component of each family-specific sPCA were selected based on the loading, reliability, and simplicity of the metric and entered into a second sPCA that included metrics across all tests. The final sPCA revealed 7 principal components each containing 2 metrics and explained a total of 53% variance of the dataset. The final principal components were interpreted as 7 lower-body strength domains: (a) dynamic force, (b) dynamic timing, (c) early isometric, (d) maximal isometric, (e) countermovement velocity, (f) reactive output, and (g) reactive timing. The findings demonstrate that a total of 7 metrics from a drop jump, CMJ, and isometric test can be used to represent ∼50% of variance in lower-body strength performance of field sport athletes. These results can help guide and simplify the lower-body strength diagnosis process in field sport athletes
An Evaluation of the Damping Characteristics of Some Silicon Rubber/Ferric Oxide Composites
No full textGenerally, polymeric materials with superior damping characteristics are in great demand for many advanced functional applications, such as in building, aerospace, electronics, and transport sectors. However, it still remains a challenge to improve the damping characteristics of such materials owing to the lack of adequate practical knowledge in this area. Here, we report on the successful fabrication of silicon rubber (SR)/ferric oxide (Fe3O4) composites with excellent damping characteristics. The results obtained from the study showed that the damping characteristics of the specimens increased with the loading of Fe3O4 within a range of −105°C to 200°C. Specifically, the damping factor (tanδ) is 0.45 at room temperature, and the effective working temperature, the temperatures that correspond to the tanδ > 0.3, ranged from −105°C to 165°C for the loading of Fe3O4 at 60 phr. The scanning electron microscopy results showed that the excellent damping characteristics of composites can be attributed to the good dispersion of Fe3O4 in the SR matrix. This work, therefore, opens up a pathway toward a relatively easy and up-scalable means for fabricating polymer composites that have superior damping characteristics and ones with a wider applicability
The interactive effect of sustained sleep restriction and resistance exercise on skeletal muscle transcriptomics in young females
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