There are roughly two types of (Web-based or other) Adaptive hypermedia systems (AHS): special-purpose systems, geared towards one specific application or application area, and general-purpose systems, designed with different applications in mind. Most existing systems are special-purpose, with a majority aiming at educational applications. Previous developments on the AHA system (De Bra & Calv...

Recent advances in touch screen technology have increased the usability of touch screens for sighted users and prompted a wave of new touch screen-based devices. However, touch screens are still largely inaccessible to blind people because they require the user to visually locate objects on the screen. To address this problem, we developed an application called Slide Rule that uses audio output...

In this paper, the authors investigate the concept of designing user-centric transaction protocols toward achieving dependable coordination in AmI environments. As a proof-of-concept, this paper presents a protocol that takes into account the schedules of roaming users, which move from one AmI environment to another, avoiding abnormal termination of transactions when users leave an environment ...

There has been a national call for increased use of computers and technology in schools. Currently, however, little is known about how students use and learn from these technologies. This study explores how eighth-grade students use the Web to search for, browse, and find information in response to a specific prompt (how mosquitoes find their prey). A previous analysis (Roy, Taylor & Chi, in pr...

The changes taking place in the world today are largely due to the developments and evolution in a number of industries; one of which is information and communication technology. Focusing on communications solutions with an emphasis on business applications, it is obvious to claim that business applications that are being deployed with 2.5G wireless networks fall into two general categories: (a...

......................................................................................... 6 INDRODUCTION ................................................................................. 7 Category effects in object identification – Deficits after brain damage .............. 8 Category effects in object identification – The 'normal' living-things advantage ... 11 Visual characteristics of stimu...

A deep understanding of social interaction in social networking sites (SNSs) can provide important insights into questions of human social and relational behavior, as well as shape the design of new social platforms and applications. Recent studies have shown that a majority of user interactions on SNSs are latent interactions—passive actions such as profile browsing that cannot be observed dir...