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We present the results of two studies on social television concepts. In one study, a social TV prototype was tested in the field, allowing groups of users watching television at home to talk to each other over an audio link. Specific patterns of use are described, showing that users did perceive the system as valuable. In another study, focus groups were(More)
SUMMARY The acute response to stress is embodied in thè®ght or ¯ight reaction', inducing a state of anxiety. When stress is long-continued, depression may develop insidiously under the cloak of continuing anxiety symptoms. Depression inhibits the ability to cope with stress and so a `vicious circle' becomes established, depression aggravating stress and(More)
Questions about the effectiveness of increasingly ubiquitous video technology in law enforcement have prompted an examination of the practices surrounding this technology. We present the results of a multi-site study aimed at understanding the use of video in several phases of law enforcement, from crime prevention and response to investigation and(More)
The driver/rider experience is a major development in mobile user-interface (UI) design worldwide, similar in scale to the first introduction of personal computers to the desktop. Most automobile manufacturers seeking to develop smart cars have relatively little experience with advanced software-based UIs and information visualization (IV). This panel(More)
BACKGROUND Venous thromboembolism (VTE) is a major health and financial burden. VTE impacts health outcomes in surgical and non-surgical patients. VTE prophylaxis is underutilized, particularly amongst high risk medical patients. We conducted a multicentre clinical audit to determine the extent to which appropriate VTE prophylaxis in acutely ill(More)
This paper describes a method of calculating the inherent visibility at all locations in a landscape ('total viewshed') by making use of redundant computer cycles. This approach uses a simplified viewshed program that is suitable for use within a distributed environment, in this case managed by the Condor system. Distributing the calculation in this way(More)
This paper considers computed means for constructing and interrogating prehistoric architectures. We ask where the 'landscapes' created through points and arcs divide us from the prehistory we seek and whether in fact these virtual landscapes offer new prehistoric places in which to dwell. Taking as a starting point the formulation of models of prehistoric(More)
We study an integrated inventory-location problem with service requirements faced by an aerospace company in designing its service parts logistics network. Customer demand is Poisson distributed and the service levels are time-based leading to highly non-linear, stochastic service constraints and a nonlinear, mixed-integer optimization problem. Unlike(More)