From two discordant families, who merged through the marriage of the son of one and daughter of the other, came a young lady who would change their lives. Nicole Hoffman had extraordinary personality traits, the most amazing of which was her unpublicised claim that she could see into the minds of her predecessors. Injuries from a horrifi c horse-riding accident disclosed this trait, which medical science was unable to explain despite great efforts. Sensitively written and intriguing, R P Erasmus' A Beautiful but Tormented Mind' weaves a compelling tale of unity, love, persistence and perseverance.
The Fourth International Cryogenic Materials Conference (ICMC) was held in San Diego, California in conjunction with the Cryogenic Engineer ing Conference (CEC) on August 10-l4, 1981. The synergism produced by conducting the two conferences together remains very strong. In the ap pl1cation of cryogenic technology, materials continue to be a demanding challenge, and sometimes, an obstacle. The association of materials and cryogenic engineers increases their awareness of recent research in each other's fields and influences the course of future research. Many contributed to the success of the 1981 conference. J. W. Morris of the University of California--Berkeley was ICMC Conference Chairman. E. N. C. Dalder of Lawrence Livermore Laboratories was ICMC Structural Program Chairman; D. C. Larbalestier of the University of Wisconsin- Madison, and D. K. Finnemore of Iowa State University were Superconducting Materials Program Chairmen. Local arrangments were expertly coordinated by R. E. Tatro of General Dynamics--San Diego. The CEC Board, especia11y their conference chairman, T. M. Flynn, of the National Bureau of Stan dards, Boulder, contributed very substantia1ly to conference planning and implementation. All of their efforts provided the foundation of the largest CEC/ICMC ever. We thank the Office of Naval Research and the Office of Fusion Energy and Basic Energy Sciences of the Department of Energy for providing needed financial support for the conference. Fina11y, we especially thank M. Stieg, who prepared the papers for the new procedures and format used in this volume.
This book is an assesment of the glorious past of Punjab sculptue to view it in the proper perspective through Indian cultural point of view. Condition good.
This guide for students studying this qualification covers core units 1-3 and the compulsory Edexcel unit 5. The unit content is covered in detail, with clear step-by-step instructions to help students learn the skills required.
Surprising though it seems, the world faces almost as great a threat today from arthropod-borne diseases as it did in the heady days of the 1950s when global eradication of such diseases by eliminating their vectors with synthetic insecticides, particularly DDT, seemed a real possibility. Malaria, for example, still causes tremendous morbidity and mortality throughout the world, especially in Africa. Knowledge of the biology of insect and arachnid disease vectors is arguably more important now than it has ever been. Biological research directed at the development of better methods of control becomes even more important in the light of the partial failure of many control schemes that are based on insecticide- although not all is gloom, since basic biological studies have contributed enormously to the outstanding success of international control programmes such as the vast Onchocerciasis Control Programme in West Africa. It is a sine qua non for proper understanding of the epidemiology and successful vector control of any human disease transmitted by an arthropod that all concerned with the problem - medical entomologist, parasitologist, field technician - have a good basic understanding of the arthropod's biology. Knowledge will be needed not only of its direct relationship to any parasite or pathogen that it transmits but also of its structure, its life history and its behaviour - in short, its natural history. Above all, it will be necessary to be sure that it is correctly identified.
This book presents environmental protection managers and advanced students in environmental studies programs with an overview of the principles, facts, multidisciplinary approaches, and some of the complex ities of the management of toxic substances. The text explores critical issues facing managers responsible for prevent ing and controlling problems associated with the manufacture,. transport, storage, use and disposal of chemicals. It does this from two perspectives. The first is a disciplinary perspective, that is environmental chemistry, of toxicology, engineering, economics, sociology and political science, all which playa role in implementing comprehensive programs to manage chemicals. The second perspective is from the view of industry, govern ment, academia and non-government organizations. For example, Chapter 5 is authored by technical managers of a major chemical company, Chap ters 6 and 12 by government scientists and managers respectively, and Chapter 10 by a respected member of the environmental lobby. An appreciation of these perspectives is very important for developing and running effective chemical management programs.
The need for alternate energy sources has led to the develop ment of prototype fusion and MHD reactors. Both possible energy systems in current designs usually require the use of magnetic fields for plasma confinement and concentration. For the creation and maintenance of large 5 to 15 tesla magnetic fields, supercon ducting magnets appear more economical. But the high magnetic fields create large forces, and the complexities of the conceptual reactors create severe space restrictions. The combination of re quirements, plus the desire to keep construction costs at a mini mum, has created a need for stronger structural alloys for service at liquid helium temperature (4 K). The complexity of the required structures requires that these alloys be weldable. Furthermore, since the plasma is influenced by magnetic fields and since magnet ic forces from the use of ferromagnetic materials in many configur ations may be additive, the best structural alloy for most applica tions should be nonmagnetic. These requirements have led to consideration of higher strength austenitic steels. Strength increases at low temperatures are achieved by the addition of nitrogen. The stability of the austenitic structure is retained by adding manganese instead of nickel, which is more expensive. Research to develop these higher strength austenitic steels is in process, primarily in Japan and the United States.
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