Originally published in 1986, this book explores many important aspects of the relationship between population change and planning, exploring the impact of population change on service provision and its impact on the policy-making process. In all countries, whether their population is expanding. ageing or stagnating, population mobility is an important cause of economic and social development. This book argues that there is a need for greater sensitivity about population change in policy-making and service provision and suggests ways of achieving this.

The subject of immune deficiency has become of special importance for two reasons. First, conditions with well defined defects in the immune system could be analyzed as "experiments of nature" in terms of finding out the accurate biological relevance of the defective link in the immune system. Secondly, the recognition of immune deficiency states has become important in order to provide the patients with the treatment necessary to remedy these defects. With regard to immune deficiency states in patients, these have been instrumental as "experiments of nature" in the revelation by Drs. Good and Cooper and their associates of the two-component structure of the immune system, a discovery which can be consi dered as a major breakthrough in the history of immunopathology. Today's research allows us to go far beyond this basic two component structure with the assessment of disorders affecting either cell to cell interactions or regarding subsets of lymphocyte populations. Furthermore, the association of immune deficiency with distinct enzymatic defects of purine metabolism is opening the door to the molecular level of immune deficiency. Dr. Cooper and Dr. Lawton have succeeded in obtaining the collaboration of the leaders in the field of immune deficiency. In view of the importance of their contributions in scientific and clinical terms, we decided to prepare a book version of the two issues of Seminars in Immunopathology devoted to this subject."

This is an OCR edition without illustrations or index. It may have numerous typos or missing text. However, purchasers can download a free scanned copy of the original rare book from GeneralBooksClub.com. You can also preview excerpts from the book there. Purchasers are also entitled to a free trial membership in the General Books Club where they can select from more than a million books without charge. Original Published by: H. Lewis in 1907 in 262 pages; Subjects: Biography & Autobiography / General; History / General;