Online delivery of courses has become a viable option because of the Internet. This paper describes how we deliver and manage part of a postgraduate degree in telecommunications. We aim to foster learner-centered education while providing sufficient teacher centered activities to counter some of the known concerns with entirely learner-centered education. We use the Internet as the communicatio...

This paper describes a survey of technologies and to what extent they support virtual project based learning. The paper argues that a survey of learning technologies should be related to concrete learning tasks and processes. Problem oriented project pedagogy (POPP) is discussed, and a framework for evaluation is proposed where negotiation of meaning, coordination and resource management are id...

‎‎In the category of Mordell curves (E_D:y^2=x^3+D) with nontrivial torsion groups we find curves of the generic rank two as quadratic twists of (E_1), ‎and of the generic rank at least two and at least three as cubic twists of (E_1). ‎Previous work‎, ‎in the category of Mordell curves with trivial torsion groups‎, ‎has found infinitely many elliptic curves with ...