Ubiquitous computing will have a unifying influence on user modeling, context-awareness and resource-adaptivity. The idea of this paper is to suggest a basic, semantically founded, uniform data structure that is simple but still expressive enough to cover all representational needs. An extended triple, which is based on RDF resources is introduced as well as an XML application for so called ”Si...

Arguments for the importance of contextual factors in understanding human performance have been made extremely persuasively in the context of the process control industries. This paper puts these arguments into the context of the train driving task, drawing on an extensive analysis of driver performance with the Automatic Warning System (AWS). The paper summarises a number of constructs from ap...

The purpose of this study was to: a) translate and adapt the Situational Motivational Scale (SIMS) in a sample Portuguese exercisers examine factor structure scale; b) evaluate discriminant validity internal consistency factors, as way to determine multidimensionality. Additionally, we sought correlational scale by examining exerciser motivation on enjoyment exercise participation. Participants...

In many regions around the world students with certain immigrant backgrounds underachieve in educational settings. This paper provides a review and meta-analysis on one potential source of the immigrant achievement gap: stereotype threat, a situational predicament that may prevent students to perform up to their full abilities. A meta-analysis of 19 experiments suggests an overall mean effect s...

There is a growing interest in the use of context-aware systems, which can recognize user’s situational context and accordingly provide a desirable interaction with the user. However, the design, development, evaluation and deployment of context-aware systems are still at its infancy. In this paper, we propose an operational mechanism approach to context acquisition driven by the relevant depen...