Video-based gait analysis, and other measurement devices such as force-plates, electrogoniometers, or electrodes to measure EMG signals are adequate for laboratory studies but are not designed for usability in ambulatory applications. Conversely, accelerometers provide easily portable systems that supply real-time data, which is why they are widely used in ambulatory diagnostic devices. However, such systems do not provide direct measure of several spatio-temporal parameters of interest such as step length, walking distance, or walking velocity. Instead, they have to be estimated with a mathematical model from indirect sensor measurements. Specifically, in this chapter we are concerned with the accelerometry- based estimation of the step length in straight-line human walking.

In the past, Supreme Audit Institutions (SAIs) rarely publicized their work. In the 1990s, a few began to publish booklets and brochures for popular consumption and to establish ties with the media. These days, SAIs are concerned about communication. A communication policy completes their cycle of accountability, justifies their existence, is an essential component of their independence and efficiency and brings about measures which assess the impact of their work.The aim of this article is to analyse the latest communication strategies developed by SAIs in order to publicize the results of their activity and to provide the public with an overall vision of what they do. The study, based on a questionnaire sent out to European Union SAIs, highlights the fact that these bodies undertake wideranging communication activities involving a close relationship with the media and the use of Internet websites. Points for practitionersThis article explores the most recent developments in European Union SAI communication strategy. Based on survey research, the study concludes that SAIs maintain a close relationship with the media and have been able to take advantage of the opportunity offered by the Internet to publish their results and to provide users with an overview of their work. For SAIs, this analysis allows them to be graded in terms of their relationship with the media and how they use Internet

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This paper addresses the need for automated facilitation to buttress facilitation efforts in managing behavior in the virtual environment. We assert that it is within this environment that we need to concentrate our efforts as the nature of virtual work brings added challenges to successful facilitation.We propose the concept of embedded facilitation in which we implant intelligent agent based behavioral indicators into GSS systems to serve as the "eyes and ears" of the facilitator, and where, based on these indicators, either automated repeatable processes are launched or thinkLets are suggested to the facilitator from which to select and launch. We suggest that embedded facilitation would reduce the need for the facilitator to fully understand intervention techniques. It is our contention that in embedding facilitation, the use of GSS could be made scalable and dramatically alter the way virtual teams interact.