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This book looks at significant current grassland problems and issues, and provides an insight into grassland productivity in diverse areas of the world, with their various production systems. There is a focus on recent technical advances and the prospects for further innovation, through twenty-one chapters by eminent grassland scientists, grouped into seven sections - forage germplasm; forage conservation; grass-based systems and organic production; climate change, biodiversity and biotechnology; geographical information systems; farmer and pastoralist participation; and regional developments. The book is timely in view of the expanding human and livestock populations, especially in arid and semi-arid environments, with the consequent pressure on the world's grasslands.
Until the '90s, research in biomechanics and biorheology mainly focused on tissues and cell priorities, so as to identify the bioclinical problems linked to the rheology properties of cells and tissues or to develop substitutes. Advances in molecular biology and new knowledge in cellular biology over the last ten years have given access to a more physiological approach to the effects of stress on cells and tissues.
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This text includes keynote invited papers from the Third International Crop Science Congress held in Hamburg, Germany in August 2000. The papers provide an overview of the major issues confronting crop science today and in the future.
This volume addresses the nature of the most common form of arthritis in humans. If osteoarthritis is inevitable (only premature death prevents all of us from being afflicted), it seems essential to facilitate its recognition, prevention, options, and indications for treatment. Progress in understanding this disease has occurred with recognition that it is not simply a degenerative joint disease. Causative factors, such as joint malalignment, ligamentous abnormalities, overuse, and biomechanical and metabolic factors have been recognized as amenable to intervention; genetic factors, less so; with metabolic diseases, intermediate. Its diagnosis is based on recognition of overgrowth of bone at joint margins. This contrasts with overgrowth of bone at vertebral margins, which is not a symptomatic phenomenon and has been renamed spondylosis deformans. Osteoarthritis describes an abnormality of joints, but the severity does not necessarily produce pain. The patient and his/her symptoms need to be treated, not the x-ray.
Osteoarthritis is the most common joint pathology which primarily affects the older population. The disease is characterized by unique pathological changes in some synovial joints, predominantly affecting the articular cartilage, but also entire joints, including the synovial tissue and subchondral bone. The remarkable growth of research on normal and abnormal biology of tissues in the articulating joint, including the application of novel molecular biological approaches and new imaging techniques, is reflected in this volume. It describes the current state of knowledge and helps to further understand the etiopathology of osteoarthritis, hopefully leading to early detection of the disease and novel treatment modalities. The volume contains contributions and discussions from a select group of investigators, all experts in this field, who met at the conference "The Many Faces of Osteoarthritis", held in June 2001 at Lake Tahoe, to acknowledge Klaus E. Kuettner and his contributions to osteoarthritis...
"The concept of grasslands as a global resource is not new. Indeed many recognised authorities have been canvassing for a global approach to understanding, managing and exploiting this resource for many years. This is the first book that gathers together leading experts from around the world to outline our current understanding of this complex ecosystem, the ways in which it can be enhanced and utilised and where the research challenges are for the future. The following themes unite the book: - Efficient production from grassland; - Grassland and the environment; - Delivering the benefits from grassland. The reader is given an in depth understanding of the biology of the system and how grass...