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This book reviews the research pertaining to nutrient requirements for working in cold or in high-altitude environments and states recommendations regarding the application of this information to military operational rations. It addresses whether, aside from increased energy demands, cold or high-altitude environments elicit an increased demand or requirement for specific nutrients, and whether performance in cold or high-altitude environments can be enhanced by the provision of increased amounts of specific nutrients.
Accessible yet theoretically rich, this text introduces key concepts and issues in critical discourse analysis and situates these within the field of educational research. Beyond providing a useful overview, it contextualizes CDA theories and methods in accounts of discourse in classroom and other settings.
This comprehensive resource explains the theory of RF circuits and systems and the practice of designing them. The fundamentals for linear and low noise amplifier designs, including the S and noise parameters and their applications in amplifier designs and matching network designs using the Smith chart are covered. Theories of RF power amplifiers and high efficiency power amplifiers are also explained. The underpinnings of wireless communications systems as well as passive components commonly used in RF circuits and measurements are discussed. RF measurement techniques and RF switches are also presented. The book explores stability criteria and the invariant property of lossless networks and...
In How the Laser Happened, Nobel laureate Charles Townes provides a highly personal look at some of the leading events in twentieth-century physics. Townes was inventor of the maser, of which the laser is one example; an originator of spectroscopy using microwaves; and a pioneer in the study of gas clouds in galaxies and around stars. Throughout his career he has also been deeply engaged with issues outside of academic research. He worked on applied research projects for Bell Labs; served on the board of directors for General Motors; and devoted extensive effort to advising the government on science, policy, and defense. This memoir traces his multifaceted career from its beginnings on the f...
The range of environments in which people can survive is extensive, yet most of the natural world cannot support human life. The Biology of Human Survival identifies the key determinants of life or death in extreme environments from a physiologist's perspective, integrating modern concepts of stress, tolerance, and adaptation into explanations of life under Nature's most austere conditions. The book examines how individuals survive when faced with extremes of immersion, heat, cold or altitude, emphasizing the body's recognition of stress and the brain's role in optimizing physiological function in order to provide time to escape or to adapt. In illustrating how human biology adapts to extrem...
This unique book provides an overview of the principle and applications of lasers enriched with numerous illustrations.Being over fifty years old, lasers continue to amaze us. Their performance characteristics are constantly reaching new limits, and the scope of their applications continues to expand. Yet, it took years of effort by teams of physicists to transform the fundamental notions of Einstein into the first experimental beam of laser light. And history is still going on as fundamental research is now triggered by its remarkable properties.This book addresses every aspects of laser light, from its fundamental principles to its industrial applications, at a level particularly suited for high school teachers, students, and anybody curious about science and technology.
Comparing migration in China itself to Chinese migration to Europe, this book critically assesses received ideas, perceptions and theories concerning internal and international migration.Comparing migration in China itself to Chinese migration to Europe, this book critically assesses received ideas, perceptions and theories concerning internal and international migration. The book argues for the emergence of a Chinese world system in which internal and international mobility is a central and heterogenous feature. The book presents an unusually rich case study of migration and transnationalism of migrants from southern Zhejiang province in Chinese and European cities, studies of rural-urban migration in booming southern China, implementation of the birth control policy among migrants in Beijing, discrimination and stereotypisation of rural migrants in Shanghai, contract worker teams in Beijing, and forced urban-rural migration during the Cultural Revolution.
Body Fluid Balance: Exercise and Sport brings you the latest thinking on important topics in this dynamic research area. The authors of this authoritative compendium provide enlightening data and unique perspectives that will stimulate other investigators and supply independent analyses for practitioners and educators. The book is efficiently organized into three sections: Section one addresses control of body fluid during exercise. Topics range from basic thirst mechanisms to specific organ control. Section two discusses environmental influences on body fluid balance, including heat, cold, altitude, and immersion. Section three describes special considerations affecting body fluid balance during exercise, such as age, gender, physical performance, and clinical complications. Each chapter presents historical perspectives, critical experiments, appropriate analyses, and pertinent conclusions. Nowhere else will you find the information you need in such an easy-to-follow, convenient format.