Cultural norms affect the efficacy of critical thinking instruction. In several sub-Saharan African countries, governments have publicly declared skills to be a major educational priority increase global economic competitiveness. However, many schools and education systems not taken action translate stated government policies into revised curricula, pedagogies assessment frameworks. Faced with ...

This work addresses the problem of scheduling a basic block of operations on a multiple instruction-issuing processor. We show that integrating register constraints into operation sequencing algorithms is a complex problem in itself. Indeed, while scheduling a forest of unit time operations on a processor with P parallel instruction slots can be solved in polynomial time, the problem becomes NP...

This study examined the effects of an inquiry-based learning (IBL) approach compared to that of a problem-based learning (PBL) approach on learner performance, attitude toward science and inquiry ability. Ninety-six students from three 7th-grade classes at a public school were randomly assigned to two experimental groups and one control group. All groups received the same web-based curriculum o...

Most of the knowledge available in the Semantic Web is context dependent. Examples of contextual information that is associated with knowledge are time, topic, provenance, reliability, etc. Recently, several paradigms, tools and languages have been proposed with the aim of adding context awareness into the Semantic Web. That is, enabling representation and reasoning not only with the knowledge ...

Service discovery is a fundamental concept underpinning the move towards dynamic service-oriented business partnerships. The business process for integrating service discovery and underlying registry technologies into business relationships, procurement and project management functions has not been examined and hence existing Web Service registries lack capabilities required by business today. ...