The trainee in difficulty is someone who is either marginal or at risk of failing in his or her clinical performance. Dealing effectively with these learners can pose problems even for seasoned medical educators. This article discusses some of the common mistakes made by educators in dealing with the trainee in difficulty and offers suggestions for a systematic approach. Further, the roles of f...

The purpose of our research is the development of a new technology, teleimmersion, which will make possible 3D visual communication between people distributed over the globe. We are putting together a low-end, PC-based, affordable hardware system, and are developing the software for a teleimmersion node (T-node). The software is based on accurate polynocular stereo. We will describe a testbed f...

The spurious regression phenomenon in least squares occurs for a wide range of data generating processes, such as driftless unit roots, unit roots with drift, long memory, trend and brokentrend stationarity. Indeed, spurious regressions have played a fundamental role in the building of modern time series econometrics and have revolutionized many of the procedures used in applied macroeconomics....