Facing the Heat Barrier


Book Description

This volume from The NASA History Series presents an overview of the science of hypersonics, the study of flight at speeds at which the physics of flows is dominated by aerodynamic heating. The survey begins during the years immediately following World War II, with the first steps in hypersonic research: the development of missile nose cones and the X-15; the earliest concepts of hypersonic propulsion; and the origin of the scramjet engine. Next, it addresses the re-entry problem, which came to the forefront during the mid-1950s, showing how work in this area supported the manned space program and contributed to the development of the orbital shuttle. Subsequent chapters explore the fading of scramjet studies and the rise of the National Aerospace Plane (NASP) program of 1985–95, which sought to lay groundwork for single-stage vehicles. The program's ultimate shortcomings — in terms of aerodynamics, propulsion, and materials — are discussed, and the book concludes with a look at hypersonics in the post-NASP era, including the development of the X-33 and X-34 launch vehicles, further uses for scramjets, and advances in fluid mechanics. Clearly, ongoing research in hypersonics has yet to reach its full potential, and readers with an interest in aeronautics and astronautics will find this book a fascinating exploration of the field's history and future.




Mollison's Blood Transfusion in Clinical Medicine


Book Description

“Both authors have dealt in an authoritative way withthe still rapidly expanding specialty and the eleventh edition ofthe book will be of the greatest value to all who are interested inthe scientific and practical aspects of blood transfusion inclinical medicine.” From the Foreword by Professor P.L. Mollison Highly respected, long-established book that has become the"bible" in transfusion medicine Why Buy This Book? Provides a sound basis for understanding modern transfusionmedicine Definitive reference source for any clinician involved withpatients requiring transfusion and for all staff working intransfusion services, immunohaematology laboratories and bloodbanks Highly practical advice on management issues for theclinician Completely revised and updated to reflect the rapid pace ofchange in transfusion medicine Written by two of the world's leading experts in the field




Truth in Mathematics


Book Description

The nature of truth in mathematics has exercised the minds of thinkers from at least the time of the ancient Greeks. The great advances in mathematics and philosophy in the twentieth century and in particular the work by G]odel and the development of the notion of independence in mathematics have led to new and complex views on this question. Collecting the work of a number of outstanding mathematicians and philosophers, including Yurii Manin, Vaughan Jones, and Per Martin-L]of, this volume provides an overview of the forefront of current thinking and a valuable introduction for researchers in the area.




Sports-Related Concussions in Youth


Book Description

In the past decade, few subjects at the intersection of medicine and sports have generated as much public interest as sports-related concussions - especially among youth. Despite growing awareness of sports-related concussions and campaigns to educate athletes, coaches, physicians, and parents of young athletes about concussion recognition and management, confusion and controversy persist in many areas. Currently, diagnosis is based primarily on the symptoms reported by the individual rather than on objective diagnostic markers, and there is little empirical evidence for the optimal degree and duration of physical rest needed to promote recovery or the best timing and approach for returning to full physical activity. Sports-Related Concussions in Youth: Improving the Science, Changing the Culture reviews the science of sports-related concussions in youth from elementary school through young adulthood, as well as in military personnel and their dependents. This report recommends actions that can be taken by a range of audiences - including research funding agencies, legislatures, state and school superintendents and athletic directors, military organizations, and equipment manufacturers, as well as youth who participate in sports and their parents - to improve what is known about concussions and to reduce their occurrence. Sports-Related Concussions in Youth finds that while some studies provide useful information, much remains unknown about the extent of concussions in youth; how to diagnose, manage, and prevent concussions; and the short- and long-term consequences of concussions as well as repetitive head impacts that do not result in concussion symptoms. The culture of sports negatively influences athletes' self-reporting of concussion symptoms and their adherence to return-to-play guidance. Athletes, their teammates, and, in some cases, coaches and parents may not fully appreciate the health threats posed by concussions. Similarly, military recruits are immersed in a culture that includes devotion to duty and service before self, and the critical nature of concussions may often go unheeded. According to Sports-Related Concussions in Youth, if the youth sports community can adopt the belief that concussions are serious injuries and emphasize care for players with concussions until they are fully recovered, then the culture in which these athletes perform and compete will become much safer. Improving understanding of the extent, causes, effects, and prevention of sports-related concussions is vitally important for the health and well-being of youth athletes. The findings and recommendations in this report set a direction for research to reach this goal.




"You Get a Bit Wobbly..."


Book Description

Examines the nature of variables influencing language attrition. The study concentrates on the lexicon of long-term Dutch expatriates living in Victoria.




Youth And The State In Hungary


Book Description

This volume examines the nature of Hungary's youth movements over the last 70 years. Kurti studies the lives of youth workers in the Csepel district of Budapest in the wider context of 20th century political and economic transformations. He follows the state-youth relations from the inter-war capitalism that made peasants into workers, through post-war state socialism, to the reintroduction of capitalism in 1990. The eight chapters reveal the reproduction of class in youth culture across shifting socio-economic conditions, as well as the mobilization of youth movements in resistance to the state, which he argues has in fact served the interests of the state. Distributed by Stylus. Annotation copyrighted by Book News, Inc., Portland, OR




Visual Worlds


Book Description

As many observers have noted, the world is becoming increasingly visually mediated, with the rise of computers and the internet being central factors in the emergence of new tools and conventions. Exploring the social structure of visuality, this volume contains a collection of essays by internationally renowned artists and scholars from a variety of fields (including art history, literary theory and criticism, cultural studies, film and television studies, intellectual history and sociology). It was conceived to address a bold query: how is our experience and understanding of vision and visual form changing under pressure from the various social, economic and cultural factors that are linked under the term 'globalization'. The essays overlap in their considerations of the tensions between cultures and worlds, political life, everyday social experience, and war. The resulting conversation that develops between the chapters touches on points from many visual worlds, and provides a unique opportunity for considering the changing character of visual experience today. This book will attract readers from a wide range of academic disciplines and will especially be valuable as a textbook for graduate and undergraduate courses in visual culture and cultural studies.




The Eighteenth Century English Novel


Book Description

Early novelists such as Samuel Richardson, Daniel Defoe, and Laurence Sterne helped create the formula for the modern novel.