The geography of opportunity research has made significant progress in recent years. use composite indexes aimed at capturing the attributes different urban areas been particularly useful to deepen understanding role that context plays people's life chances. However, little attention paid dynamic component opportunity, is, what explains its changes over time and whether or not those (positive n...

Three dimensional user interfaces can help users in time-critical situations to improve their ability to solve problems. But they also may distract them from fulfilling their tasks with efficiency and effectiveness. This requests to control and limit the distraction caused by usage of those interfaces. Therefore it is necessary to measure and compare distraction caused by three dimensional user...

This position paper describes the Activity-Based Computing (ABC) project which has been ongoing in Denmark since 2003. Originally, the project took its outset in the design of a pervasive computing platform suited for the mobile, collaborative, and time-critical work of clinicians in a hospital setting. Out of this grew a conceptual framework, a set of six ABC principles, and a programming and ...