The present paper analyzes the self-generated explanations (from talk-aloud protocols) that “Good” ond “Poor” students produce while studying worked-out exomples of mechanics problems, and their… (More)
We consider a single, classical Brownian particle in a spatially symmetric periodic system far from thermal equilibrium, which can be readily realized experimentally. Upon application of an external… (More)
We have created a set of novel visualisations of group activity: they have been designed to mirror the activity of the individuals and their interactions, based upon readily available authentic data… (More)
We investigate quantum Brownian motion in adiabatically rocked ratchet systems. Above a crossover temperature Tc tunneling events are rare, yet they already substantially enhance the classical… (More)
We consider a single Brownian particle in a spatially symmetric, periodic system far from thermal equilibrium. This setup can be readily realized experimentally. Upon application of an external… (More)
Electron-tunneling data suggest that a noncovalently-bonded complex of three molecules, two recognition molecules that present hydrogen-bond donor and acceptor sites via a carboxamide group, and a… (More)
This research examines two different kinds of feedback-mechanism to scaffold problem solving as well as interaction in computer-mediated seminars. An automated feedback mechanism has been used to… (More)
In this paper we describe three visualisations we have created to support teams of students learning about eXtreme programming, and various communication and software technologies, in the context of… (More)
Learning about subject matter and about writing by collaboratively authoring an electronic document is an important variant of computer-supported collaborative learning. Collaborative writing is… (More)