One of every seven flowering plants on earth is an orchid. Some are stunningly over the top; others almost inconspicuous. The Orchidaceae is the second most widely geographically distributed family, after the grasses, yet remains one of the least understood. This book will profile 600 species, representing the remarkable and unexpected diversity and complexity in the taxonomy and phylogeny of these beguiling plants, and the extraordinary means they have evolved in order to ensure the attraction of pollinators. Each species entry includes life-size photographs to capture botanical detail, as well as information on distribution, peak flowering period, and unique attributes--both natural and cultural. The result is a work which will attract and allure, much as the orchids themselves do.
This introduction to the design of expert systems is written in an easy-to-read style and offers practical examples for each new topic presented. Emphasis is less on the intracacies of programming language, more on explanation. Defines what expert systems are, and discusses knowledge representation and inference. Chapters also cover logic, two-valued inference, inexact and semi-exact reasoning, advanced tools and topics, and draw on studies of human cognition to motivate technical definitions. Each chapter has an introduction and a summary, and provides suggestions for further reading. Contains student projects.
The Harvey Society was founded in 1905 by thirteen New York scientists and physicians with the purpose of forging a "closer relationship between the purely practical side of medicine and the results of laboratory investigation." The Society distributes scientific knowledge in selected areas of anatomy, physiology, pathology, bacteriology, pharmacology, and physiological and pathological chemistry through public lectures, which are published annually. Series 94, 1998-1999 covers themes in neurogenetic studies, the role of tyrosine phosphorylation in cell growth and disease, the biology of the epidermis and its appendages, and the phenotypic diversity of monogenic disease.
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