Assuming that the complex phenomena underlying the operation of the immune system may be better understood through the collaborative efforts of theorists and experimentalists viewing the same phenomena in different ways, the Sante Fe Institute and the Theoretical Division of Los Alamos National Laboratory cosponsored a workshop entitled "Theoretical Immunology." The workshop focused on themes spanning the field of immunology, with emphasis on areas where the theorists have made the most progress. This book covers the discussions a that workshop on the topics of immune surveillance, mathematical models of HIV infection, complexities of antigen-antibody systems, immune suppression and tolerance, and idiotypie networks. In each of these areas there is reason to believe that advances can be madeeither through interactions among experimentalists and theorists or through the critical look experimentalists and theorists will bring to bear upon one another's work.

This delightful, informative flap book explores the everyday topic of teeth cleaning in a charming, fascinating way. Discover how animals look after their teeth, why teeth wobble and fall out and how you can keep your own teeth healthy and white. New in the award-winning, bestselling series. The sturdy flaps make this board book perfect for little fingers. Other titles in the series include What is Poo?, What are Germs?, What is Snow?, What are Stars?, What is Sleep?, Why do we need Potties?

Sam and his mother talk about the different kinds of cells in his body, how they grow, and how in doing so they help him grow.

Helps young learners to understand why it's important to look after their teeth and stay healthy.

"With lots of friendly advice and a special sticker reward chart, keeping teeth clean and healthy is fun and easy."--Cover back.

This book provides step-by-step instructions on brushing teeth. Teach your youngsters or those who need extra support to brush their teeth with this fun, colorful and educational book.

Ivy is not excited about brushing her teeth every morning and night. Will her attitude toward tooth brushing change once she learns there are nasty sugar bugs living in her mouth?