Publications by authors named "D P Cliff"
Background: Recent research suggests that children spend increasing amounts of time engaging in screen-based activities and less time outdoors in natural environments. There is a growing body of theory-driven literature evidencing that child screen use and exposure to nature are associated with wellbeing outcomes in contrasting ways. However, few studies have explored their combinative effects, and the relational family context has been largely overlooked.
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- * Experiments showed that mine water treatment alters key temperature points and chemical properties of coal, with specific temperatures rising and falling, and increased release of gases like CO and CO2.
- * The study concludes that while the acidity of mine water enhances CSC activity due to water swelling, the inorganic salts present are insufficient to inhibit combustion, suggesting mine water primarily promotes CSC.
Background: Sleep, sedentary behaviour, physical activity, and the composition of these movement behaviours across the 24-h day are associated with cognitive function in early years children. This study used a Goldilocks day compositional data analysis approach to identify the optimal duration of sleep, sedentary behaviour, light physical activity, and moderate-to-vigorous physical activity associated with desired cognitive function outcomes in early years children.
Methods: This cross-sectional study included 858 children aged 2.
Article Synopsis
- The 24-hour Movement Questionnaire (QMov24h) was developed to effectively measure sleep, sedentary behaviour, and physical activity, aiming to comply with WHO guidelines.
- The development process involved input from end-users and experts, as well as comparisons to existing measures for validation, resulting in a significant testing sample of 117 participants.
- Results indicated that the QMov24h has strong validity for measuring various movement behaviours and shows considerable reliability, making it a suitable tool for evaluating compliance with physical activity guidelines in adults.
Article Synopsis
- The prevalence of physical activity, sedentary behavior, and sleep among 3- and 4-year-old children globally is unclear, highlighting the need for consistent data.
- This study analyzed data from 14 cross-sectional studies across 33 countries to determine how many children met WHO guidelines for physical activity, screen time, and sleep over recent years.
- Only 14.3% of the 7017 children studied met all the guidelines, with no significant differences found between countries with varying income levels regarding adherence to these health recommendations.