Clear, accessible guide requires little prior knowledge and considers just two topics: paraxial imaging and polarization. Lucid discussions of paraxial imaging properties of a centered optical system, optical resonators and laser beam propagation, matrices in polarization optics and propagation of l[...]

Irritable bowel syndrome (IBS), the most common of all digestive disorders, is the leading cause of recurrent abdominal pain. This expanded edition sums up the latest research and offers new information on treatments and on the relationship of anxiety disorders to IBS. The benchmark IBS book, now wi[...]

This broad-ranging "Companion" gives readers a thorough grounding in both the background and the substance of eighteenth-century poetry in all its rich variety.
An up-to-date and wide-ranging guide to eighteenth-century poetry.
Reflects the dramatic transformation which has taken place in th[...]

This is the first in a new time-travel series featuring Charlie and his dog, Bandit. In this first adventure they accidentally fall into a 'sinkhole' that transports them back to ancient Rome where their adventures begin as Charlie searches for his dog. Charlie is befriended by a young Roman named[...]