School\u27s out: Adolescent \u27leisure time\u27 activities, influences and consequences

The current study investigated the out-of-school activities in which adolescents participate categorised in terms of structure, type (creative, physical, passive) and level of interaction (individual, group), the developmental, psychological and social consequences of such involvement, and the factors influencing participation. Questionnaires completed by 1280, 12 to 17 year old Western Australian metropolitan, high-school students provided information on adolescents\u27 out-of-school time use, their perceptions of parental values and behaviours, friends\u27 behaviours and relationships and their own behaviours and beliefs. A model, based on the research literature, indicated that parent support and intrinsic motivation were the two factors contributing most to adolescent participation in structured `leisure\u27 activities. There was some support for the hypothesis that involvement in structured `leisure\u27 activities would be associated with higher levels of self-worth and life satisfaction, less boredom and less frequent engagement in risk behaviours. However, it was found that parent strictness and connectedness (as perceived by the adolescents) were the largest contributors to these outcomes. The findings provided support for the `positive psychology movement\u27 and suggest that the majority of this group of adolescents are living effectively in the demanding and changing environment of today\u27s society

The Effect of Peer Collaboration on Children\u27s Problem Solving Ability

Peer collaboration is a commonly used learning strategy, perceived by educators as a valuable educational activity. Studies do indicate a performance output benefit for children working collaboratively compared to children working individually. However, the longer term cognitive benefits of collaboration appear to be limited by a number of factors. It is suggested that cognitive change following peer collaboration is limited to children working with a more cognitively competent peer (or one with a different perspective), active participation and reasoned communication. This paper considers elements of Piaget\u27s and Vygotsky\u27s cognitive development theories in an attempt to explain some of the processes underlying peer collaboration, that may lead to cognitive change. Studies grounded in a Piagetian framework support the view that it is the cognitive conflict arising from peer interaction that leads to cognitive change. However, researchers in the Vygotskian tradition argue that cognitive change is most likely to occur when a child collaborates with a more competent partner. It is contended that the two theories are not as mutually exclusive as they are often portrayed. It appears that an important component in both theories is that cognitive change results when the interaction exposes a participant to a different knowledge source, whether it be due to a conflicting perspective (as argued by Piagetians), or a higher level of expertise (as argued by Vygotskians)

Effects of antiplatelet therapy on stroke risk by brain imaging features of intracerebral haemorrhage and cerebral small vessel diseases: subgroup analyses of the RESTART randomised, open-label trial

Background Findings from the RESTART trial suggest that starting antiplatelet therapy might reduce the risk of recurrent symptomatic intracerebral haemorrhage compared with avoiding antiplatelet therapy. Brain imaging features of intracerebral haemorrhage and cerebral small vessel diseases (such as cerebral microbleeds) are associated with greater risks of recurrent intracerebral haemorrhage. We did subgroup analyses of the RESTART trial to explore whether these brain imaging features modify the effects of antiplatelet therapy

Global, regional, and national burden of traumatic brain injury and spinal cord injury, 1990-2016 : a systematic analysis for the Global Burden of Disease Study 2016

Background Traumatic brain injury (TBI) and spinal cord injury (SCI) are increasingly recognised as global health priorities in view of the preventability of most injuries and the complex and expensive medical care they necessitate. We aimed to measure the incidence, prevalence, and years of life lived with disability (YLDs) for TBI and SCI from all causes of injury in every country, to describe how these measures have changed between 1990 and 2016, and to estimate the proportion of TBI and SCI cases caused by different types of injury. Methods We used results from the Global Burden of Diseases, Injuries, and Risk Factors (GBD) Study 2016 to measure the global, regional, and national burden of TBI and SCI by age and sex. We measured the incidence and prevalence of all causes of injury requiring medical care in inpatient and outpatient records, literature studies, and survey data. By use of clinical record data, we estimated the proportion of each cause of injury that required medical care that would result in TBI or SCI being considered as the nature of injury. We used literature studies to establish standardised mortality ratios and applied differential equations to convert incidence to prevalence of long-term disability. Finally, we applied GBD disability weights to calculate YLDs. We used a Bayesian meta-regression tool for epidemiological modelling, used cause-specific mortality rates for non-fatal estimation, and adjusted our results for disability experienced with comorbid conditions. We also analysed results on the basis of the Socio-demographic Index, a compound measure of income per capita, education, and fertility. Findings In 2016, there were 27.08 million (95% uncertainty interval [UI] 24.30-30.30 million) new cases of TBI and 0.93 million (0.78-1.16 million) new cases of SCI, with age-standardised incidence rates of 369 (331-412) per 100 000 population for TBI and 13 (11-16) per 100 000 for SCI. In 2016, the number of prevalent cases of TBI was 55.50 million (53.40-57.62 million) and of SCI was 27.04 million (24 .98-30 .15 million). From 1990 to 2016, the age-standardised prevalence of TBI increased by 8.4% (95% UI 7.7 to 9.2), whereas that of SCI did not change significantly (-0.2% [-2.1 to 2.7]). Age-standardised incidence rates increased by 3.6% (1.8 to 5.5) for TBI, but did not change significantly for SCI (-3.6% [-7.4 to 4.0]). TBI caused 8.1 million (95% UI 6. 0-10. 4 million) YLDs and SCI caused 9.5 million (6.7-12.4 million) YLDs in 2016, corresponding to age-standardised rates of 111 (82-141) per 100 000 for TBI and 130 (90-170) per 100 000 for SCI. Falls and road injuries were the leading causes of new cases of TBI and SCI in most regions. Interpretation TBI and SCI constitute a considerable portion of the global injury burden and are caused primarily by falls and road injuries. The increase in incidence of TBI over time might continue in view of increases in population density, population ageing, and increasing use of motor vehicles, motorcycles, and bicycles. The number of individuals living with SCI is expected to increase in view of population growth, which is concerning because of the specialised care that people with SCI can require. Our study was limited by data sparsity in some regions, and it will be important to invest greater resources in collection of data for TBI and SCI to improve the accuracy of future assessments. Copyright (C) 2018 The Author(s). Published by Elsevier Ltd.Peer reviewe