We describe an experiment in combining multiple interactive media in one collaborative system. While our system supports context–based display of content, it also supports synchronous awareness between visitors using PDA, hypermedia and VR systems. We are also exploring multiple scales of location: buildings on a street, rooms within a building, and spaces within a room. We describe the design ...

Identifying patients with early human immunodeficiency virus infection is an important public health goal. Those individuals who have acquired human immunodeficiency virus infection recently have high viral loads both in their blood and genital secretions, thus facilitating transmission. Identifying and intervening these individuals early in the course of their disease, helps to reduce onward t...