Wear of Orthopaedic Implants and Artificial Joints

"It is important that scientists think about and know their history - where they came from, what they have accomplished, and how these may affect the future. Weed scientists, similar to scientists in many technological disciplines, have not sought historical reflection. The technological world asks for results and for progress. Achievement is important not, in general, the road that leads to achievement. What was new yesterday is routine today, and what is described as revolutionary today may be considered antiquated tomorrow. Weed science has been strongly influenced by technology developed by supporting industries, subsequently employed in research and, ultimately, used by farmers and crop growers. The science has focused on results and progress. Scientists have been--and the majority remain--problem solvers whose solutions have evolved as rapidly as have the new weed problems needing solutions. In a more formal sense, weed scientists have been adherents of the instrumental ideology of modern science. That is an analysis of their work, and their orientation reveals the strong emphasis on practical, useful knowledge; on know how. The opposite, and frequently complementary orientation, that has been missing from weed science is an emphasis on contemplative knowledge; that is, knowing why. This book expands on and analyzes how these orientations have affected weed sciences development. Key Features. The first analytical history of weed science to be written. Compares the development of weed science, entomology and plant pathology. Identifies the primary founders of weed science and describes their role"

"Insect Pests of Potato: Biology and Management provides a comprehensive source of up-to-date scientific information on the biology and management of insects attacking potato crops, with an international and expert cast of contributors providing its contents. This book presents a complete review of the scientific literature from the considerable research effort over the last 15 years, providing the necessary background information to the subject of studying the biology management of insect pests of potatoes, assessment of recent scientific advances, and a list of further readings. This comprehensive review will be of great benefit to a variety of scientists involved in potato research and production, as well as to those facing similar issues in other crop systems. Key Features. Written by top experts in the field, this is the only publication covering the biology, ecology and management of all major potato pests. Emphasizes ecological and evolutionary approaches to pest management. Summarizes information from hard-to-get publications in China, India, and Russia"

"Postharvest Handling: A Systems Approach introduces a new concept in the handling of fresh fruits and vegetable. Traditional treatments have been either physiologically based with an emphasis on biological tissue or technologically based with an emphasis on storage and handling. This book integrates all processes from production practices through consumer consumption with an emphasis on understanding market forces and providing fresh product that meets consumer expectations. Postharvest physiologists and technologists across the disciplines of agricultural economics, agricultural engineering, food science and horticulture along with handlers of minially-processed products within the fresh produce fruit and vegetable processing industries will find this to be an invaluable source of information. Key Features

The Role of Water in Agriculture focuses on the role of water in British agriculture. This book discusses the growing importance of hydrological science and agricultural hydrology. Organized into 14 chapters, this book begins with an overview of the problems of accurate rainfall measurement and its importance to agriculture. This text then presents a comprehensive study of the sources of error in agricultural water budgets. Other chapters consider the progress reports on two catchment studies and a report on the effect of agricultural treatments on water availability in the soil. This book discusses as well the sediment yields from forested and agricultural lands on an international basis. The final chapter deals with a summary of the discussions with conclusions and implications. This book is a valuable resource for hydrologists, geographers, meteorologists, agricultural scientists, applied biologists, plant physiologists, and pedologists. Engineers, administrators, and advisers will also find this book useful.

"Following the successful first edition, this revised edition, contains 680 pages and 900 color photos and diagrams, covering every imaginable symptom, pest and disease affecting the tomato. This is the definitive work on the diseases and disorders of the tomato, a worldwide crop of significant economic importance. Key Features. Includes over 300 high quality colour photographs. Explains how to examine and identify diseases of the foliage, roots, neck, stalk and fruit. Enables readers to diagnose and combat both parasitic and non-parasitic diseases of the tomato plant and fruit"