Public health buildings contribute significantly to UK carbon emissions. New build initiatives have received more attention than the considerable opportunities to reduce carbon emissions within the retained health estate. The research reported here has considered the environmental performance of a typical medium rise, medium depth, concrete-framed, late 1960s acute hospital following low energy environmental design interventions. The interventions are made to optimize daylighting and natural ventilation/cooling whilst reducing overheating caused by summer time solar gains. Three options are investigated: advanced natural ventilation using plena and exhaust stacks; fan-assisted natural ventilation in which fans are used in the exhaust stacks; and mechanical ventilation/cooling with heat recovery. Computer simulations have been carried out to predict the influence on thermal performance (overheating risk) and energy consumption of each of these options on the original design. For each case, current weather data, and future weather data for the years 2020, 2050 and 2080, have been used.
Population ageing has become a major global demographic shift but perhaps less noticeable in the Global South. Zimbabwe, like many African countries, is experiencing and will continue to witness an increase in older age, hence questioning its readiness to handle such change. Ageing in Zimbabwe is currently occurring in the context of increasing poverty, political unrest, changing family structures, and weakening infrastructures. Despite this, Zimbabwe is committed to promoting change and betterment for its citizens through adherence to international agendas and national development strategies. However, the first step towards the realisation of an inclusive urban environment begins with a fair representation of the various actors and social groups. This review paper is aimed at examining the representation of Zimbabwe’s older people, a subject that has rarely been the focus of critical analysis, concentrating on the political discourse in urban development programmes. A sample of 45 international and national policy documents published post-2002, was carefully selected and inspected to determine the level of presence of older people using discourse analysis. The findings reveal that in the context of the efforts made towards a Zimbabwe that is inclusive of all citizens, the idea of older persons as subjects of rights and active participants has yet to truly gain sufficient currency. There is a dominance of a one-dimensional perspective across the majority of the publications, with older people constructed as “dependent”, “vulnerable” and “passive”, overseeing vital contributions to society. A realistic and more empowering representation of this social group, showing them as active caregivers rather than passive recipients is therefore a necessity if Zimbabwe is to fulfil its vision of inclusivity.
Social cues, such as eye gaze and pointing fingers, can increase the prioritisation of specific locations for cognitive processing. A previous study using a manual reaching task showed that, although both gaze and pointing cues altered target prioritisation (reaction times [RTs]), only pointing cues affected action execution (trajectory deviations). These differential effects of gaze and pointing cues on action execution could be because the gaze cue was conveyed through a disembodied head; hence, the model lacked the potential for a body part (i.e., hands) to interact with the target. In the present study, the image of a male gaze model, whose gaze direction coincided with two potential target locations, was centrally presented. The model either had his arms and hands extended underneath the potential target locations, indicating the potential to act on the targets (Experiment 1), or had his arms crossed in front of his chest, indicating the absence of potential to act (Experiment 2). Participants reached to a target that followed a nonpredictive gaze cue at one of three stimulus onset asynchronies. RTs and reach trajectories of the movements to cued and uncued targets were analysed. RTs showed a facilitation effect for both experiments, whereas trajectory analysis revealed facilitatory and inhibitory effects, but only in Experiment 1 when the model could potentially act on the targets. The results of this study suggested that when the gaze model had the potential to interact with the cued target location, the model's gaze affected not only target prioritisation but also movement execution.
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