Hepatitis a Vaccines: How will We Use Them?

Predicted values: how should we use them?

We can train them, but how can we retain them?

To the Editor: The Department of Surgery at the Nelson R Mandela School of Medicine is proud of its 100% pass rate in the October 2008 Colleges of Medicine of South Africa examinations held in Durban. Most candidates attended the graduation and joined the 3 who passed in May as registered specialists in general surgery. This represents a stalwart effort on the part of the candidates and their t...

Burst Remnants : How can we find them ?

By now there is substantial evidence that Gamma-Ray Bursts (GRBs) originate at cosmological distances from very powerful explosions. The interaction between a GRB and its surrounding environment has dramatic consequences on the environment itself. At early times, the strong X-ray UV afterglow flux photoionizes the medium on distance scales on the order of 100 pc [7], destroys dust [10], creates...

How can we make them work ?

Threshold Concepts : how can we recognise them ?

A threshold concept is defined by Meyer and Land (2003) as possessing the following qualities: transformative, integrative, bounded, and probably irreversible. This concept provides a promising way of interpreting the learning demand presented by subjects and Meyer and Land have begun to apply the idea in analysing learning economics. It redefines the familiar idea of a ‘powerful concept’ in a ...