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BACKGROUND The Wales National Exercise Referral Scheme (NERS) is a 16-week programme including motivational interviewing, goal setting and relapse prevention. METHOD A pragmatic randomised controlled trial with nested economic evaluation of 2160 inactive participants with coronary heart disease risk (CHD, 1559, 72%), mild to moderate depression, anxiety(More)
It is increasingly important to optimally select base stations in the design of cellular networks, as customers demand cheaper and better wireless services. From a set of potential site locations, a subset needs to be selected which optimizes two critical objectives: service coverage and financial cost. As this is an NP-hard optimization problem, heuristic(More)
BACKGROUND The benefits to health of a physically active lifestyle are well established and there is evidence that a sedentary lifestyle plays a significant role in the onset and progression of chronic disease. Despite a recognised need for effective public health interventions encouraging sedentary people with a medical condition to become more active,(More)
OBJECTIVES To examine school-level relationships between deprivation and breakfast eating behaviours (breakfast skipping and the healthfulness of foods consumed) in 9-11-year-old schoolchildren and to examine whether attitudes towards eating breakfast mediated these relationships. DESIGN Cross-sectional survey. SETTING One hundred and eleven primary(More)
The antenna placement problem, or cell planning problem, involves locating and configuring infrastructure for cellular wireless networks. Many authors have looked at computationally efficient methods to create feasible or optimised cell plans. However in most approaches the tension between conflicting objectives is generally addressed implicitly rather than(More)
OBJECTIVE The present study evaluated the impact of a national school programme of universal free healthy breakfast provision in Wales, UK. DESIGN A cluster randomised controlled trial with repeated cross-sectional design and a 12-month follow-up. Primary outcomes were breakfast skipping, breakfast diet and episodic memory. Secondary outcomes were(More)