Physical activity patterns of ethnic children from low socio-economic environments within the UK

Many children fail to meet physical activity (PA) guidelines for health benefits. PA behaviours are complex and depend on numerous interrelated factors. The study aims to develop current understanding of how children from low Socio-economic environments within the UK use their surrounding built environments for PA by using advanced technology. The environment was assessed in 96 school children (7–9 years) using global positioning system (GPS) monitoring (Garmin Forerunner, 305). In a subsample of 46 children, the environment and PA were assessed using an integrated GPS and heart rate monitor. The percentage of time spent indoor, outdoor, in green and non-green environments along with time spent in moderate-to-vigorous PA (MVPA) in indoor and outdoor environments were assessed. A 2-by-2 repeated measures analysis of covariance, controlling for body mass index, BF%, assessed the environmental differences. The findings show that 42% of children from deprived wards of Coventry fail to meet PA guidelines, of which 43% was accumulated during school. Children engaged in more MVPA outdoor than indoor environments (P < 0.01) and a greater amount of time was spent in non-green environments (P < 0.01). Increased time outdoors was negatively associated with BF%. In conclusion, outdoor environments are important for health-enhancing PA and reducing fatness in deprived and ethnic children.     

Epistemic states and traits: preschoolers appreciate the differential informativeness of situation-specific and person-specific cues to knowledge

Previous research has demonstrated that preschoolers can use situation-specific (e.g., visual access) and person-specific (e.g., prior accuracy) cues to infer what others know. The present studies investigated whether 4- and 5-year-olds appreciate the differential informativeness of these types of cues. In Experiment 1 (N = 50), children used others' prior labeling accuracy as a cue when learning labels for, but not the visual identity of, hidden objects. In Experiment 2 (N = 64), with both cues present, children attended more to visual access than prior accuracy when learning the visual identity of, but not labels for, hidden objects. These findings demonstrate that children appreciate the difference between situation- and person-specific cues and flexibly evaluate these cues depending on what information they are seeking.     

A conceptual model of taste receptors

Of all the senses, that of taste is perhaps the hardest to define and quantify and elucidation of the underlying mechanisms is unrespondingly difficult. This article describes a conceptual model — at the molecular level — for the four basic taste modalities, using apparent specific volume as a fundamental parameter. It also considers possible practical applications.     

The influence of reputation information on the assessment of undergraduate student work

The present study employed an experimental design to examine the influence of knowledge of a student’s previous performance and the general quality of their writing style on the assessment of undergraduate student work. Fifteen sport and exercise physiology academics were asked to mark and give feedback on two final year undergraduate student essays. The first student essay that participants marked was a control essay. The second essay was the target essay. Participants read one of three student reputation profiles (positive, negative or neutral) prior to marking this essay. Kruskal–Wallis tests for difference indicated that the marks awarded to each essay did not significantly differ between the three student reputation conditions. Thematic analysis of the target essay also revealed no apparent differences in the way in which feedback was presented across the three student reputation profiles. It was therefore concluded that non-anonymous marking did not induce marker bias in this instance.     

Materiality and sustainability transitions: integrating climate change in transport infrastructure in Ontario,Canada

Infrastructure threatens to lock-in societies to fossil fuels unless something is done now. This is because infrastructure lasts for such a long time, meaning that any infrastructure built or rebuilt now will last well into the twenty-first century – until the end of the century, in some cases. Consequently, there is a need to integrate climate change into infrastructure now or societies will be left with infrastructure designed around unsustainable socio-technical systems (such as combustion engines, roads, and suburbanization). Such change is conceptualized in the literature as a sustainability transition. However, any attempts at such transitions have to address the ‘materialities’ of infrastructure systems (physical form, environmental context, and so on). In this paper, I develop the concept of ‘socio-material systems’ and apply it to transport infrastructure in Ontario, Canada.