One of the most important developments in diagnostic imaging over the last decade has been magnetic resonance imaging (MRI). Its ability to differentiate between tissues and give patholog ical information about diseases has led to earlier treatment, thus increasing the likelihood of recovery. The images produced using this technique give superb anatomical detail in any plane and are obtained without the use of ionising radiation. The increased use of MRI has presented radiographers with a number of challenges, and because we are no longer dealing with ionising radiation understanding the subject can some times be confusing. We hope that this text will help radiographers and student radiographers to further their knowledge and unravel the mysteries of MRI. Philip T. English Christine Moore Contents 1 Basic Principles . . . . . . . . . 1 History ..... . 1 Atomic Theory . . 1 Magnetic Theory . 2 Resonance 4 Relaxation. . . . . 5 2 Instrumentation........ 9 The Magnet .. 9 Shim Coils ........... . 12 Gradient Coils ......... . 13 RF Transmitter/Receiver Coils. 14 The Computer . . . . . . . . . 18 3 Pulse Sequences. . . . . . . . . 19 Saturation Recovery (Partial Saturation) 19 Spin Echo (SE) . . . . . . . . . . . . . 20 Multiple Spin Echo. . . . . . . . . . . 22 Fast Spin Echo (FSE) or Turbo Spin Echo (TSE). 23 Inversion Recovery (IR) . . . . . . . . . . . . . 26 Gradient Echo .................. . 28 Magnetisation Transfer Contrast Imaging (MTC) 34 4 Image Production. . . . . . . .
Praise for Philip Gooden: “Great fun.”—Guardian “Gooden will give you a gratifying taste of the danger and excitement of that lusty place and time.”—Publishers Weekly In 1873 a canon dies violently while sneaking ancient artifacts out of a burial chamber on the outskirts of Salisbury. London lawyer Tom Ansell discovers the body and comes under suspicion of his murder. To clear himself, he must find the killer. Philip Gooden is the author of numerous works of fiction and nonfiction. He is currently the chair of the Crime Writers’ Association in the United Kingdom. He has been shortlisted for the Ellis Peters Award. From the Hardcover edition.
In a realm of magic and wonder, protected by the infamous Storm-Line, a civil war threatens to plunge the land back into darkness. But amidst the chaos, a glimmer of hope arises with the discovery of the mythical Vault of Power, a source of unbridled magical potential. But finding the Vault before the opposing Death-Hunters means crossing into the fabled Unknown Region, a place few mages have ever returned from. Leading a quest into the most dangerous realm outside their own, a small detachment of the Guard make the voyage through the Storm-Line to face untold horrors. Among this group is a young mage who seeks adventure more than any of her creed. But even she isn’t ready to face the nightmares that follow. Now their only hope to survive this harsh landscape and find their way home lies not in the magic that has shaped their civilization, but in the survivors of the world left in ruins. But can they be trusted with their lives, or are there secrets hiding under the surface that threaten everything they believe in?
The third volume in the Science Fiction MEGAPACK® series collection 26 tales of high adventure through other worlds and times, including a complete novel by H. Beam Piper! Included in this volume are: "The Man Who Made Friends with Electricity," by Fritz Leiber "Time Bum," by C.M. Kornbluth "The Human Equations," by Dave Creek "The Gun," by Philip K. Dick "Not Stupid Enough," by George H. Scithers "Jackpot," by E.C. Tubb "The Killing Streets," by Colin Harvey "Moon Dive," by Sydney J. Bounds "Charon’s Curse," by John Glasby "The Hunted Heroes," by Robert Silverberg "Night of the Squealers," by Michael McCarty and Mark McLaughlin "Chaos," by John Russell Fearn "And Happiness Everlasting," by Gerald Warfield "The 7th Order," by Jerry Sohl "Monkey on his Back," by Charles V. De Vet "The Calm Man," by Frank Belknap Long "Alien Still Life," by John Gregory Betancourt "A Question of Courage," by J. F. Bone "Angels and Moths" by Costi Gurgu "Second Landing," by Murray Leinster "The Einstein-Rosen Hunter-Gatherer Society," by George S. Walker "Wind," by Charles L. Fontenay "Star Mother," by Robert F. Young "The Sky Is Falling," by Lester Del Rey If you enjoy this ebook, don't forget to search your favorite ebook store for "Wildside Press Megapack" to see more of the 300+ volumes in this series, covering adventure, historical fiction, mysteries, westerns, ghost stories, science fiction -- and much, much more!
This book traces the development of Marx's ethics as they underwent various shifts and changes during different periods of his thought. In his early writings, his ethics are based on a concept of essence much like Aristotle's which Marx tries to link to a principle of universalization similar to Kant's `categorical imperative'. In the period 1845-6 Marx abandoned this view, holding morality to be incompatible with his historical materialism. In the later writings Marx is less of a determinist, and he no longer wants to reject morality. However he does want to transcend a morality of burdensome obligation and constraint so as to realize a community built upon spontaneous bonds of solidarity.
From the acclaimed storyteller, a propulsive tale of desire, betrayal, duty, and infidelity—and the explosive consequences of a buried passion The newsman in Luke Blackburn shuns the spotlight when he and his old friend, now the county mayor in Key West, discover stranded Cuban refugees during a fishing outing turned tragic, but he is part of the story that goes out on the wire. When Corinne, his lover from many years ago, happens to read it and reaches out, the news she bears will disrupt his carefully orchestrated life and threatens to blow up his marriage. His wife, Maureen, lace-curtain Irish while he was from Appalachia, is a brilliant scholar who is also bipolar and fragile. Luke has never told her about his youthful passion or the infant that Corinne, barely out of her teenage years, gave up at birth when they split and he went to war. Maureen’s illness has meant that she and Luke have foregone having children of their own. In Luke’s mind, she cannot find out about Corinne or the child. Meanwhile, in Miami, where Luke works as the managing editor at a newspaper struggling to survive in the digital era, his star investigative reporter is slowly piecing together a blockbuster story zeroing in on the corrupting influence of cartel money in south Florida. The evidence she has uncovered links a flashy real estate developer, a legacy of murky land dealings, and the stink of political corruption in Luke’s own refuge, Key West.
This book examines the ways in which English is conceptualised as a global language in Japan, and considers how the resultant language ideologies – drawn in part from universal discourses; in part from context-specific trends in social history – inform the relationships that people in Japan have towards the language. The book analyses the specific nature of the language’s symbolic meaning in Japan, and how this meaning is expressed and negotiated in society. It also discusses how the ideologies of English that exist in Japan might have implications for the more general concept of ‘English as a global language’. To this end it considers the question of what constitutes a ‘global’ language, and how, if at all, a balance can be struck between the universal and the historically-contingent when it comes to formulating a theory of English within the world.
The Gaelic Revival has long fascinated scholars of political history, nationalism, literature, and theater history, yet studies of the period have neglected a significant dimension of Ireland's evolution into nationhood: the cultural crusades mounted by those who believed in the centrality of the Irish language to the emergent Irish state. This book attempts to remedy that deficiency and to present the lively debates within the language movement in their full complexity, citing documents such as editorials, columns, speeches, letters, and literary works that were influential at the time but all too often were published only in Irish or were difficult to access. Cautiously employing the terms "nativist" and "progressive" for the turnings inward and toward the European continent manifested in different authors, this study examines the strengths and weaknesses of contrasting positions on the major issues confronting the language movement. Moving from the early collecting or retelling of folklore through the search for heroes in early Irish history to the reworking of ancient Irish literary materials by retelling it in modern vernacular Irish, O'Leary addresses the many debates and questions concerning Irish writing of the period. His study is a model for inquiries into the kind of linguistic-literary movement that arises during intense nationalism.
Describes the lives of early prehistoric peoples, from the use of tools and the migration of early hominids around the world to human life during the Ice Age, the domestication of animals, and prehistoric art.
When Bernie Gunther takes on a blackmail case and gets involved in the affairs of British spies, the former detective risks exposing his own dark past in this thrilling novel hailed by The New York Times Book Review as “one of Kerr’s best.” Saint-Jean-Cap-Ferrat, 1956. Having gone into hiding in the French Riviera, Bernie Gunther is working as a concierge at the Grand-Hôtel under a false name. His days and nights consist of maneuvering drunks to their rooms, shooing away prostitutes in search of trade, and answering the mindless questions posed by the absurdly rich guests—needless to say, he’s miserable. Now, the man who was once a homicide detective and unwilling SS officer in Hitler’s Third Reich is simply the person you turn to for touring tips or if you need a bridge partner. As it just so happens, a rich and famous writer needs someone to fill the fourth seat in a regular game at the Villa Mauresque. But Somerset Maugham wants Bernie to help him get out of a game far more dangerous than bridge. Maugham is being blackmailed—perhaps because of his unorthodox lifestyle, or perhaps because, once upon a time, Maugham worked for the British Secret Service...
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