The rapid determination of BPV viral load will give a reliable marker for disease severity and may also be considered when establishing a therapeutic strategy.

No abstract

Video patching is a way for transporting true video-on-demand, that is, instantaneous without any delay, from a video server to several clients. Instead of sending a unique stream to each newly arriving client, clients share as many multicast transmissions as possible, and are serviced only those parts of the video that they have missed.We present a novel video patching scheme using hierarchies of patches. Our scheme minimizes the bandwidth needed by the video server, and may result in the fact that clients receive several streams in parallel. We show analytically that for Poisson arrival our algorithm achieves the optimal possible server bandwidth for all schemes where clients share multicast transmissions.We also show, how our approach can be combined with batching. This combination requires less server bandwidth than all fixed start point periodic broadcast algorithms.

Understanding the factors that determine human attention in videos is important for many applications, such as user inter face design in interactive television (iTV), continuity editing, or data compression techniques. In this article, we identify the demands that cinematic cuts impose on human attention. We hypothesize, test, and confirm that after cuts the view ers' attention is quickly attracted by repeated visual content. We conclude with a recommendation for future models of vi sual attention in videos and make suggestions how the present results could inspire designers of second screen iTV applica tions to optimise their interfaces with regard to a maximally smooth viewing experience.