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Invisible Design is a technique for generating insights and ideas with workshop participants in the early stages of concept development. It involves the creation of ambiguous films in which characters discuss a technology that is not directly shown. The technique builds on previous work in HCI on scenarios, persona, theatre, film and ambiguity. The(More)
In this paper, we describe our experiences in the design, implementation and deployment of a wireless sensor network in a petroleum facility. A heterogeneous architecture is devised using Commercial Off-the-Shelf equipment and hardware interface is designed to setup the proposed prototype in a petroleum facility. Various performance parameters such as(More)
The present work relates to WINTeR, an open access, multi-user experimental facility, currently under development, to support implementation and evaluation of wireless sensor networks for industrial applications in radio-harsh environments. A brief review of existing testbeds is provided and the unique requirements of WINTeR are defined. The resulting(More)
Saving energy in residential and commercial buildings is of great interest due to diminishing resources. Heating ventilation and air conditioning systems, and electric lighting are responsible for a significant share of energy usage, which makes it desirable to optimise their operations while maintaining user comfort. Such optimisation requires accurate(More)
Panopticon is a video surrogate system that displays multiple sub-sequences in parallel to present a rapid overview of the entire sequence to the user. A novel, precisely animated arrangement slides thumbnails to provide a consistent spatiotemporal layout while allowing any sub-sequence of the original video to be watched without interruption. Furthermore,(More)
Graphical authentication systems typically claim to be more usable than PIN or password-based systems, but these claims often follow limited, single-stage paradigm testing on a young, student population. We present a more demanding test paradigm in which multiple codes are learned and tested over a three-week period. We use this paradigm with two user(More)
OBJECTIVE Systems for efficient case finding of women with major depression during pregnancy and postpartum are needed. Here we assess the diagnostic accuracy of a modified 2-item patient health questionnaire (PHQ-2) as a pre-screen in assessing depression. METHODS Cross-sectional assessments at 15 weeks' gestation (n = 414), 30 weeks' gestation (n =(More)
Few clinically effective approaches reduce CNS-white matter injury. After early in-vivo white matter infarct, NFκB-driven pro-inflammatory signals can amplify a relatively small amount of vascular damage, resulting in progressive endothelial dysfunction to create a severe ischemic lesion. This process can be minimized by 15-deoxy-Δ(12,14)-prostaglandin J2(More)