Chemistry is an experimental science, but also depends on the visualization of certain phenomena for to be understood in this respect the models are useful, and computer use can facilitate the learning of this science. ...

Exchange is a collaborative learning application, originally developed for wirelessly interconnected Pocket PCs, that provides support for students and a teacher performing a face-to-face computer supported collaborative ...

This study evaluated the online participation of 40 students who, while studying a graduate programme in a fully online higher education institution, were assigned to small online groups for a four-week period in order to ...

This study describes the synthesis and characterization of three α-diimine-cobalt complexes of the type [CoCl2(R-DAB)] (R-DAB = R–N[dbnd]CH–CH[dbnd]N–R; R = Mes, Dipp and Dipp∗) and their application as mediators for the ...

Cognition, faculty related to perception, imagination, memory, and problem solving, refers to internal mental processes through which sensorial input is acquired, elaborated, used, and stored. One of its importances relies ...

A forum is a valuable tool to foster reflection in an in-depth discussion; however, it forces the course mediator to continually pay close attention in order to coordinate learners` activities. Moreover, monitoring a forum ...

In this article we present the use of knowledge for a Mediation System, developed to give support to participants in mechanical-system-designer activities. To use a cooperative system sufficient assistance is needed to ...

Multiphase flows are present in many industrial activities such as in exploration, production and transportation of oil and gas, in which is common to find a mixture of oil, gas and water flowing inside pipes. In many cases ...