Al Qaeda killed over 3,000 US citizens on September 11, 2001, and terrorism leapt to the fore of US strategic and political priorities. Yet, after nearly six years of concentrated effort by the United States, the dominant power in the international system, Al Qaeda survives and is still acknowledged as a potent threat. This begs the question not just of why, but also of what the United States can do to redress the situation. Confronting Al-Qaeda asserts that Al-Qaeda is primarily a political threat, not a military one. This is because terrorists subvert legitimate political processes to achieve political ends. Al-Qaeda challenges not only specific U.S. policy decisions, but also the very nature of the U.S. political system and the U.S.-lead international order created after World War II. Therefore the character of the U.S. political response to the threat from Al-Qaeda is critical. Al-Qaeda’s capacity for violence is the direct source of its power. This must be reduced, and coercive means, such as the military, intelligence, and law enforcement, are necessary, for they alone directly degrade Al-Qaeda’s potential. A singularly coercive approach, however, is insufficient. As the leader of the international system, the United States is in a position to politically undercut Al-Qaeda. The United States can do so by adhering to globally revered traditional US political values and foreign policy.
Practical guidance for wildlife professionals working to improve study design, data analysis, and the application of results to habitat and population management. Winner of the Wildlife Society Publications Book Award by The Wildlife Society Despite major advances in sampling techniques and analytical methods, many animal ecologists conduct research that is primarily relevant to a specific time and place. They also tend to focus more on the statistical analyses and nuances of modeling than actual study design. Arguing that studies of animal ecology should always begin with a focus on the behaviors and characteristics of individual organisms, including how they form into distinct biological populations, Applications for Advancing Animal Ecology takes a fresh and critical look at the field. Building from its companion volume, Foundations for Advancing Animal Ecology, this practical book presents readers with the principal methods used to observe animal behavior. Teaching them to assess resource abundance categories of species-environmental relationships models, it also explores • major aspects of measuring animal habitat: what to measure and how to measure it; • common sampling and estimation methods to assess population parameters; • when to measure and how to analyze data; • problems that will confront ecologists in the coming years—and how to gather information to adequately address them; and • how the experimental approach can be used to advance the science of animal ecology. Throughout the book, the authors stress the importance of speaking a common and well-defined language. Avoiding vague and misleading terminology, they assert, will help ecologists translate science into meaningful and lasting actions in the environment. Taking the perspective of the organism of interest in developing concepts and applications, the authors always keep the potentially biased human perspective in focus. They also provide a selection of suggested research projects, cautions, and caveats. A major advancement in understanding the factors underlying wildlife–habitat relationships, Applications for Advancing Animal Ecology will be an invaluable resource to natural resource management professionals and practitioners, including state and federal agencies, non-governmental organizations, and environmental consultants.
Use this book to move science learning out of the classroom and into everyday life. Science has a profound capacity to transform how we experience the world, but it can be challenging to foster transformative experiences. When it comes to the science classroom, too often the Las Vegas slogan applies: What happens here stays here. Based on over 20 years of research, this guide presents the Teaching for Transformative Experiences in Science instructional model to help teachers craft practices that will encourage students to apply science concepts beyond defined school boundaries. This practical resource includes detailed vignettes, classroom examples, guidance for trying out strategies, and materials for assessing transformative experiences. Book Features Introduction to transformative experience theory.A model of teaching based on empirical classroom research.Vignettes and classroom examples that illustrate application of the model strategies.“Try It Out” guides.Assessment materials. “Changing how students experience science can change more than their understanding of science. It can change the world.” —From the Foreword by Gale M. Sinatra, USC Rossier School of Education
This book examines the construction of ethnic communities, and of multicultural policy, in post-war England. It explores how Irish and Afro-Caribbean immigrants responded to their representation as alien races by turning to history. In cultural and educational projects immigrants imagined, researched, wrote and pictured their pasts. They did so because they sought in the past dignity, a common humanity and an explanation of the hostility that had greeted them in England. But the meaning of the past is never fixed. Encouraged and conditioned by the burgeoning field of race relations, these histories were interpreted as expressions of difference. They asserted, it was claimed, specific ethnic needs and identities. They were the nation’s ‘other histories’. Drawing on a wide range of sources and covering many different debates, the book seeks to recover the inclusive historical imagination of radical scholars and activists who saw in the past the resources for a better future.
This undergraduate textbook provides students with the information and skills needed to be a well-rounded sports television or radio broadcaster. Students will learn how to write for broadcast, shoot and edit video, and prepare for all the additional tasks needed along the way"--
This book covers more than a hundred years of chess in the Civil Service, with information about the clubs, the individuals, the events they contested, the successes, and the arguments that sometimes resulted. Clubs regularly featured leading players of the day and the Civil Service representative team frequently beat strong counties in 50-board matches, as well as participating in a mammoth 500-board match against the rest of England. Names of chess clubs bring a whiff of nostalgia, with India Office, War Office and Civil Service Rifles no longer in existence. Leading players served their country not only in their departments, but at establishments like Bletchley Park in the Second World War. Several civil servants represented their country in international matches. Over a thousand players participated in the league at one stage.
This fully updated sixth edition of a classic classroom text is essential reading for core courses in archaeology. Archaeology: An Introduction explains how the subject emerged from an amateur pursuit in the eighteenth century into a serious discipline and explores changing trends in interpretation in recent decades. The authors convey the excitement of archaeology while helping readers to evaluate new discoveries by explaining the methods and theories that lie behind them. In addition to drawing upon examples and case studies from many regions of the world and periods of the past, the book incorporates the authors’ own fieldwork, research and teaching. It continues to include key reference and further reading sections to help new readers find their way through the ever-expanding range of archaeological publications and online sources as well as colour illustrations and boxed topic sections to increase comprehension. Serving as an accessible and lucid textbook, and engaging students with contemporary issues, this book is designed to support students studying Archaeology at an introductory level. New to the sixth edition: Inclusion of the latest survey and imaging techniques, such as the use of drones and eXtended reality. Updated material on developments in dating, DNA analysis, isotopes and population movement, including consideration of the ethical considerations of these techniques. Coverage of new developments in archaeological theory, such as the material turn/ontological turn, and work on issues of equality, diversity and inclusion. A whole new chapter covering archaeology in the present, including new sections on heritage and public archaeology, and an updated consideration of archaeology’s relationship with the climate crisis. A revised glossary with over 200 new additions or updates.
The bowl is one of the most traditional forms, but contemporary artists who work in wood understand that it has tremendous potential. These 500 exquisite examples, many by pioneering artisans, show just how much the bowl has been “reinvented” by craftpeople all over the world as both an iconic object and as a departure for self-expression. On display are a wide range of woodworking approaches, from chisel to chainsaw to router to bandsaw. Some have carvings on the suface; others feature paint and mixed media; while many more stay close to what nature provided, with the wood simply sanded and sealed. The talented creators include James Prestini, Bob Stocksdale, Rude Osolnik, Mel Lindquist, Ed Moulthrop, Mark Lindquist, David Ellsworth, and William Hunter.
Governing States and Localities, Ninth Edition introduces students to the most recent challenges, developments, and political changes impacting state and local politics. Employing a comparative approach, bestselling authors Kevin B. Smith and Alan Greenblatt illustrate the similarities and differences in the way state and local governments operate to show students the real-world application of policy and politics.
Just Not Dirt is a book helping soil caretakers to look at ways of managing regeneratively. That is building soil adding carbon back into the soil ecosystem. The soil health principles are global, they are true around the world. How you do it will have a regional flavour and agronomics. Topics extensively covered are the five soil health principles: keep a vegetative plant growing, increase plant diversity, reduce tillage, reduce use of synthetic inputs, and livestock integration, plus the rationale of why these are important. There are seven producer's stories telling of their regenerative agriculture journey from Western Canada and Western Australia.
“A warm compassionate story of helicopters in rescue missions” (Igor Sikorsky Jr., aviation historian). Travis County STAR Flight, in Austin, Texas, is recognized as one of the premier public-safety helicopter programs in the United States. Life Inside the Dead Man’s Curve is a firsthand account of the tragedy and triumph witnessed by STAR Flight crews as they respond to a myriad of emergencies, everything from traumatic injuries to rescues―and more. The author, Kevin McDonald, recounts how he turned his passion for flying into an extraordinary career filled with real-life twists and turns that will keep you on the edge of your seat from start to finish. From his early days as a naval aviator, to his twenty years as a STAR Flight pilot, Kevin takes the reader on a powerful, emotional roller coaster ride. Even if you’re not an aviation enthusiast, you need to strap in for this read. This is more than a book about flying helicopters―it’s a book about life, life inside the dead man’s curve. “A delightful, informative homage to a life of flight.” —Kirkus Reviews
Complications of hand injuries are very common, and the primary goal of the treatment of hand trauma is simply that of avoiding complications. They can be considered to be complications of missed diagnoses, complications of treatment, or complications of injuries.
Why do students who belong to racial minority groups—particularly black students—fall short in school performance? This book provides a comprehensive and critical examination of black identity and its implications for black academic achievement and intellectualism. No other group of students has been more studied, more misunderstood, and more maligned than African American students. The racial gap between White and African American students does exist: a difference of roughly 20 percent in college graduation rates has persisted for more than the past two decades; and since 1988, the racial gap on the reading and mathematics sections of the Scholastic Aptitude Test (SAT) has increased from 189 points to 201 points. What are the true sources of these differences? In this book, psychology professor and editor-in-chief of the Journal of Black Psychology Kevin Cokley, PhD, delves into and challenges the dominant narrative regarding black student achievement by examining the themes of black identity, the role of self-esteem, the hurdles that result in academic difficulties, and the root sources of academic motivation. He proposes a bold alternate narrative that uses black identity as the theoretical framework to examine factors in academic achievement and challenge the widely accepted notion of black anti-intellectualism. This book will be valuable to all educators, especially those at the high school through undergraduate college/university level, as well as counselors associated with academic and community institutions, social service providers, policy makers, clergy and lay staff within the faith-based community, and parents.
A new account of the central role developmental processes play in evolution A new scientific view of evolution is emerging—one that challenges and expands our understanding of how evolution works. Recent research demonstrates that organisms differ greatly in how effective they are at evolving. Whether and how each organism adapts and diversifies depends critically on the mechanistic details of how that organism operates—its development, physiology, and behavior. That is because the evolutionary process itself has evolved over time, and continues to evolve. The scientific understanding of evolution is evolving too, with groundbreaking new ways of explaining evolutionary change. In this book, a group of leading biologists draw on the latest findings in evolutionary genetics and evo-devo, as well as novel insights from studies of epigenetics, symbiosis, and inheritance, to examine the central role that developmental processes play in evolution. Written in an accessible style, and illustrated with fascinating examples of natural history, the book presents recent scientific discoveries that expand evolutionary biology beyond the classical view of gene transmission guided by natural selection. Without undermining the central importance of natural selection and other Darwinian foundations, new developmental insights indicate that all organisms possess their own characteristic sets of evolutionary mechanisms. The authors argue that a consideration of developmental phenomena is needed for evolutionary biologists to generate better explanations for adaptation and biodiversity. This book provides a new vision of adaptive evolution.
African American Psychology: From Africa to America provides comprehensive coverage of the field of African American psychology. Authors Faye Z. Belgrave and Kevin W. Allison skillfully convey the integration of African and American influences on the psychology of African Americans using a consistent theme throughout the text—the idea that understanding the psychology of African Americans is closely linked to understanding what is happening in the institutional systems in the United States. The Fourth Edition reflects notable advances and important developments in the field over the last several years, and includes evidence-based practices for improving the overall well-being of African American communities
Epilepsy is the most common neurological disorder of childhood, occurring both in children whose physical and cognitive states are otherwise normal as well as being a facet of a more generalised and severe brain disease. There are many manifestations of epilepsy and, therefore, a diversity of factors in underlying pathology, responses to treatment and prognosis. Full understanding requires knowledge of the basic science that underlies epilepsy and its causes, and an appreciation of cognitive, psychiatric and social factors. This book is a comprehensive and up-to-date review of all aspects of childhood epilepsy for the specialist neurologist or paediatrician with an interest in this area. The first edition was praised for its valuable clinical approach to examining the nature of epileptic syndromes and for its appropriate and readable coverage of the underlying basic science, features that are retained and expanded upon in this revision. Particular updates include full coverage of new developments in epidemiology, genetics, classification, imaging, drug therapy and other treatments. Several new chapters have been added, covering eyelid myoclonia, Rasmussen's syndrome, cognitive and behavioural manifestations of epilepsy, and vagal nerve stimulation. This book is essential reading for paediatric neurologists, epileptologists and paediatricians, and will continue to provide invaluable support for any physician confronted by a child with epilepsy.
A history of the Sixth Tennessee Cavalry U.S.A., a Southern Unionist regiment led by Colonel Fielding Hurst, during the American Civil War from 1862 to 1865.
This book tells a compelling story about love, friendship, and the Divine that took over a thousand years to unfold. It argues that mind and feeling are intrinsically connected in the thought of Plato, Aristotle, and Plotinus; that Aristotle developed his theology and physics primarily from Plato’s Symposium (from the “Greater” and “Lesser Mysteries” of Diotima-Socrates’ speech); and that the Beautiful and the Good are not coincident classes, but irreducible Forms, and the loving ascent of the Symposium must be interpreted in the light of the Republic, as the later tradition up to Ficino saw. Against the view that Platonism is an escape from the ambiguities of ordinary experience or opposed to loving individuals for their own sakes, this book argues that Plato dramatizes the ambiguities of ordinary experience, confronts the possibility of failure, and bequeaths erotic models for the loving of individuals to later thought. Finally, it examines the Platonic-Aristotelian heritage on the Divine to discover whether God can love us back, and situates the dramatic development of this legacy in Plotinus, Iamblichus, Proclus, and Dionysius the Areopagite.
The definitive source of information, insight, and advice for creative writers, from the nation’s largest and most trusted organization for writers, Poets & Writers. For half a century, writers at every stage of their careers have turned to the literary nonprofit organization Poets & Writers and its award-winning magazine for resources to foster their professional development, from writing prompts and tips on technique to informative interviews with published authors, literary agents, and editors. But never before has Poets & Writers marshaled its fifty years’ worth of knowledge to create an authoritative guide for writers that answers every imaginable question about craft and career—until now. Here is the writing bible for authors of all genres and forms, covering topics such as how to: -Harness your imagination and jump-start your creativity -Develop your work from initial idea to final draft -Find a supportive and inspiring writing community to sustain your career -Find the best MFA program for you -Publish your work in literary magazines and develop a platform -Research writing contests and other opportunities to support your writing life -Decide between traditional publishing and self-publishing -Find the right literary agent -Anticipate what agents look for in queries and proposals -Work successfully with an editor and your publishing team -Market yourself and your work in a digital world -Approach financial planning and taxes as a writer -And much more Written by Kevin Larimer and Mary Gannon, the two most recent editors of Poets & Writers Magazine, this book brings an unrivaled understanding of the areas in which writers seek guidance and support. Filled with insider information like sample query letters, pitch letters, lists of resources, and worksheets for calculating freelance rates, tracking submissions, and managing your taxes, the guide does more than demystify the writing life—it also provides an array of powerful tools for building a sustainable career as a writer. In addition to the wealth of insights into creativity, publishing, and promotion are first-person essays from bestselling authors, including George Saunders, Christina Baker Kline, and Ocean Vuong, as well as reading lists from award-winning writers such as Anthony Doerr, Cheryl Strayed, and Natalie Diaz. Here, at last, is the ultimate comprehensive resource that belongs on every writer’s desk.
In this book, Kevin M. Cherry compares the views of Plato and Aristotle about the practice, study and, above all, the purpose of politics. The first scholar to place Aristotle's Politics in sustained dialogue with Plato's Statesman, Cherry argues that Aristotle rejects the view of politics advanced by Plato's Eleatic Stranger, contrasting them on topics such as the proper categorization of regimes, the usefulness and limitations of the rule of law, and the proper understanding of phronēsis. The various differences between their respective political philosophies, however, reflect a more fundamental difference in how they view the relationship of human beings to the natural world around them. Reading the Politics in light of the Statesman sheds new light on Aristotle's political theory and provides a better understanding of Aristotle's criticism of Socrates. Most importantly, it highlights an enduring and important question: should politics have as its primary purpose the preservation of life, or should it pursue the higher good of living well?
The Kingdom of the Occult delivers the timely followup to Dr. Martin's best-selling The Kingdom of the Cults This book takes Dr. Walter Martin's comprehensive knowledge and his dynamic teaching style and forges a strong weapon against the world of the Occult-a weapon of the same scope and power as his phenomenal thirty-five year bestseller, The Kingdom of the Cults (over 875,000 sold). Chapters include: Witchcraft and Wicca, Satanism, Pagan Religions, Tools of the Occult, Demon Possession and Exorcism, Spiritual Warfare, etc. Features include: Each chapter contains: Quick Facts; History; Case Studies; Theology; Resources
Containing 2,729 entries, Kevin L. Seligman’s bibliography concentrates on books, manuals, journals, and catalogs covering a wide range of sartorial approaches over nearly five hundred years. After a historical overview, Seligman approaches his subject chronologically, listing items by century through 1799, then by decade. In this section, he deals with works on flat patterning, draping, grading, and tailoring techniques as well as on such related topics as accessories, armor, civil costumes, clerical costumes, dressmakers’ systems, fur, gloves, leather, military uniforms, and undergarments. Seligman then devotes a section to those American and English journals published for the professional tailor and dressmaker. Here, too, he includes the related areas of fur and undergarments. A section devoted to journal articles features selected articles from costume- and noncostumerelated professional journals and periodicals. The author breaks these articles down into three categories: American, English, and other. Seligman then devotes separate sections to other related areas, providing alphabetical listings of books and professional journals for costume and dance, dolls, folk and national dress, footwear, millinery, and wigmaking and hair. A section devoted to commercial pattern companies, periodicals, and catalogs is followed by an appendix covering pattern companies, publishers, and publications. In addition to full bibliographic notation, Seligman provides a library call number and library location if that information is available. The majority of the listings are annotated. Each listing is coded for identification and cross-referencing. An author index, a title index, a subject index, and a chronological index will guide readers to the material they want. Seligman’s historical review of the development of publications on the sartorial arts, professional journals, and the commercial paper pattern industry puts the bibliographical material into context. An appendix provides a cross-reference guide for research on American and English pattern companies, publishers, and publications. Given the size and scope of the bibliography, there is no other reference work even remotely like it.
The county of Tripoli in what is now North Lebanon is arguably the most neglected of the so-called ‘crusader states’ established in the Middle East at the beginning of the twelfth century. The present work is the first monograph on the county to be published in English, and the first in any western language since 1945. What little has been written on the subject previously has focused upon the European ancestry of the counts of Tripoli: a specifically Southern French heritage inherited from the famous crusader Raymond IV of Saint-Gilles. Kevin Lewis argues that past historians have at once exaggerated the political importance of the counts’ French descent and ignored the more compelling signs of its cultural impact, highlighting poetry composed by troubadours in Occitan at Tripoli’s court. For Lewis, however, even this belies a deeper understanding of the processes that shaped the county. What emerges is an intriguing portrait of the county in which its rulers struggled to exert their power over Lebanon in the face of this region’s insurmountable geographical forces and its sometimes bewildering, always beguiling diversity of religions, languages and cultures. The counts of Tripoli and contemporary Muslim onlookers certainly viewed the dynasty as sons of Saint-Gilles, but the county’s administration relied upon Arabic, its stability upon the mixed loyalties of its local inhabitants, and its very existence upon the rugged mountains that cradled it. This book challenges prevailing knowledge of this little-known crusader state and by extension the medieval Middle East as a whole. .
George S. Patton Jr. lived an exciting life in war and peace, but he is best remembered for his World War II battlefield exploits. Patton’s War: An American General’s Combat Leadership: November 1942–July 1944, the first of three volumes, follows the general from the beaches of Morocco to the fields of France, right before the birth of Third Army on the continent. In highly engaging fashion, Kevin Hymel uncovers new facts and challenges long-held beliefs about the mercurial Patton, not only examining his relationships with his superiors and fellow generals and colonels, but also with the soldiers of all ranks whom he led. Using new sources unavailable to previous historians and through extensive research of soldiers’ memoirs and interviews, Hymel adds a new dimension to the telling of Patton’s WWII story.
The legendary figure who launched the careers of Spike Lee, Michael Moore, and Richard Linklater offers a no-holds-barred look at the deals and details that propel an indie film from a dream to distribution.
This fourth edition constitutes the most extensive reshaping of the text to date. In a lucid and accessible style Kevin Greene explains the discovery and excavation of sites, outlines major dating methods, gives clear explanations of scientific techniques, and examines current theories and controversies. New features include: a completely new user-friendly text design with initial chapter overviews and final conclusions, key references for each chapter section, an annotated guide to further reading, a glossary, refreshed illustrations, case studies and examples, bibliography and full index a new companion website built for this edition providing hyperlinks from contents list to individual chapter summaries which in turn link to key websites and other material an important new chapter on current theory emphasizing the richness of sources of analogy or interpretation available today. This new edition provides students with a sound introduction to the field of archaeology and guides them towards further study.
Historical account of the activities of Phillips Petroleum Company during World War II, and the various means by which Phillips fought World War II on the American home front including: research and development of petroleum technology, corporate conservation, shifts in labor policies, and the politics and diplomacy of oil as it related to company and national interests during World War II. How important was oil? After the war, Commander-in-Chief of the American Pacific Fleet Admiral Chester W. Nimitz stated, ""Oil and oil products constituted more than twice the combined tonnage of all other supplies shipped overseas, including men, weapons, ammunition, and food."" Uncovering the wartime activities of Phillips 66 provides a fascinating account of the depths to which the American oil industry dove to ensure victory over the Axis powers.
No one explains A&P more clearly! The Human Body in Health & Disease, 7th Edition makes it easier to understand how the body works, both in normal conditions and when things go wrong. Its easy-to-read writing style, more than 500 full-color illustrations, and unique Clear View of the Human Body transparencies keep you focused on the principles of anatomy, physiology, and pathology. New to this edition are Connect It! features with bonus online content and concept maps with flow charts to simplify complex topics. From noted educators Kevin Patton and Gary Thibodeau, this book presents A&P in a way that lets you know and understand what is important. - More than 545 full-color photographs and drawings bring difficult A&P concepts to life and illustrate the most current scientific knowledge. - Clear, conversational writing style breaks down information into brief 'chunks,' making principles easier to understand. - UNIQUE! Clear View of the Human Body transparencies allow you to peel back the layers of the body, with a 22-page, full-color insert showing the male and female human body along several planes. - Over 50 Animation Direct 3-D animations provide dynamic visual explanations for key concepts, with callouts in the text directing you to these animations on the Evolve companion website. - Language of Science/Language of Medicine presents lists of medical terms, pronunciations, and word parts to help you become familiar with A&P terminology and the meanings of individual word parts. - Useful learning features include study tips, chapter objectives, case studies, critical thinking questions, summary boxes, review questions, and chapter tests. - A study guide reinforces your understanding of anatomy and physiology with a variety of practical exercises to help you review and apply key A&P concepts. Sold separately. - NEW and UNIQUE! Connect It! articles on the Evolve companion website provide bonus information for you to explore, and are called out in the text. - NEW and UNIQUE! Active Concept Maps on Evolve utilize animated and narrated flow charts to explain complex topics, and are also called out in the text. - NEW! Chapter objectives and Active Learning sections more closely tie objectives to the end-of-chapter material. - UPDATED! Genetics chapter includes the latest and most important advances.
A practical, in-depth description of the physics behind electron emission physics and its usage in science and technology Electron emission is both a fundamental phenomenon and an enabling component that lies at the very heart of modern science and technology. Written by a recognized authority in the field, with expertise in both electron emission physics and electron beam physics, An Introduction to Electron Emission provides an in-depth look at the physics behind thermal, field, photo, and secondary electron emission mechanisms, how that physics affects the beams that result through space charge and emittance growth, and explores the physics behind their utilization in an array of applications. The book addresses mathematical and numerical methods underlying electron emission, describing where the equations originated, how they are related, and how they may be correctly used to model actual sources for devices using electron beams. Writing for the beam physics and solid state communities, the author explores applications of electron emission methodology to solid state, statistical, and quantum mechanical ideas and concepts related to simulations of electron beams to condensed matter, solid state and fabrication communities. Provides an extensive description of the physics behind four electron emission mechanisms—field, photo, and secondary, and how that physics relates to factors such as space charge and emittance that affect electron beams. Introduces readers to mathematical and numerical methods, their origins, and how they may be correctly used to model actual sources for devices using electron beams Demonstrates applications of electron methodology as well as quantum mechanical concepts related to simulations of electron beams to solid state design and manufacture Designed to function as both a graduate-level text and a reference for research professionals Introduction to the Physics of Electron Emission is a valuable learning tool for postgraduates studying quantum mechanics, statistical mechanics, solid state physics, electron transport, and beam physics. It is also an indispensable resource for academic researchers and professionals who use electron sources, model electron emission, develop cathode technologies, or utilize electron beams.
The dissertation presents the results of a multi-epoch very long baseline interferometric study of water masers located in the extended atmospheres of evolved stars. The research was performed using the Very Long Baseline Array and Very Large Array of the National Radio Astronomy Observatory. Optical monitoring of the stars was provided by the American Association of Variable Star Observers, the Variable Star Network and Dr. Bill Neely of the NF/Observatory. Water masers of found to exist in a region where a population inversion of the rotation transition of 22 GHz can be maintained by collisional pumping. The masers are identified as individual pockets of gas, which have the good velocity coherence and may be imaged using radio interferometry. Stellar winds are initiated in these sources by dust formation and acceleration of the gas through momentum coupling. The typical wind speeds in the region of the water masers are 10 to 20 km/s The water masers are followed through several epochs of observation and exhibit proper motions consistent with the assumed source distance and the measured outflow of velocity in the water maser region. Estimates of the distance to the sources using statistical approximation are in agreement with the currently accepted distances to the stars. A detailed kinematic model is used to describe the flow motions of the gas in the maser region. The regions are found to be complex and not well modeled by uniform radial outflow, radial outflow with rotation, or radial with acceleration. The reasons for this are explored and include anisotropic velocity fields induced through non-uniform dust formations near the star and incomplete sampling of the outflow due to a lack of detected masers. Possibilities for future work in the subject are described and include more sophisticated modeling, more sensitive observations, and analysis of other maser species.
For one semester junior/senior and beginning-level graduate courses in Social Change. An introduction to social change that highlights theories on key topics including social change, innovation, social movements, and revolutions. Exploring Social Change: America and the World 6e is a comprehensive introduction to social change. The last part of the book shifts explicitly to the global level to analyze population and environmental issues and globalization. Within this framework, the book discusses topics about change and its problems familiar in sociology and social science.
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