Starting in 1995 numerical modeling of the Earth s dynamo has ourished with remarkable success. Direct numerical simulation of convection-driven MHD- ow in a rotating spherical shell show magnetic elds that resemble the geomagnetic eld in many respects: they are dominated by the axial dipole of approximately the right strength, they show spatial power spectra similar to that of Earth, and the magnetic eld morphology and the temporal var- tion of the eld resembles that of the geomagnetic eld (Christensen and Wicht 2007). Some models show stochastic dipole reversals whose details agree with...

The purpose of this four volume series is to make available for college teachers and students samples of important and realistic applications of mathematics which can be covered in undergraduate programs. The goal is to provide illustrations of how modern mathematics is actually employed to solve relevant contemporary problems. Although these independent chapters were prepared primarily for teachers in the general mathematical sciences, th y should prove valuable to students, teachers, and research scientists in many of the fields of application as well. Prerequisites for each chapter and...

This is the inaugural volume of the new series: Critical Issues in Psychiatry: An Educational Series for Residents and Clinicians. It is an appropriate beginning, for this book represents a milestone in the evolution of psychiatric education. For the first time, there will now be a single place where one can find a compre hensive collection of educational goals and objectives to define the broad spectrum of knowledge and skills essential for general and child psychiatry. This collection does not represent the bias of a single educator or program. Rather, it consists of a consensually...