Books by "Robert W. Christensen"
3 books found
Ischemic heart disease is the leading cause of morbidity and mortality in the developed world. The high metabolism and oxygen demand of the cardiac myocardium depends on both a high blood flow and a rich capillary density. For this reason, the growth of the coronary vasculature is vital, not only in early development, but also in the adult faced with various stresses. Novel technologies have enabled the discovery of the molecular mechanisms underlying the growth and assembly coronary vessels, and this volume covers the hierarchy of the coronary vasculature from its embryonic origins through its postnatal growth, adulthood, and senescence. Chapters address normal coronary development, coronary anomalies and their possible underlying developmental errors, coronary vessel adaptations to exercise training, aging, hypoxia, myocardial ischemia, and cardiac hypertrophy. This comprehensive overview of current research in coronary vessels and myocardial perfusion was written by Dr. Robert J. Tomanek, Emeritus Professor of Anatomy and Cell Biology at the University of Iowa. The book reviews, discusses, and integrates findings from various areas of coronary vasculature research, and as a result, will be a valuable reference source for cardiovascular scientists and physicians for many years to come.
Christensen's Physics of Diagnostic Radiology
by Thomas S. Curry, James E. Dowdey, Robert C. Murry
1990 · Lippincott Williams & Wilkins
The Fourth Edition of this text provides a clear understanding of the physics principles essential to getting maximum diagnostic value from the full range of current and emerging imaging technologies. Updated material added in areas such as x-ray generators (solid-state devices), xerography (liquid toner), CT scanners (fast-imaging technology) and ultrasound (color Doppler).
A distinct painting development with regard to the American West's Wasatch Range emerged in the nineteenth century and persists even today. These "painters of the Wasatch" have set many precedents through their artistic interpretations of this mountain subject matter. Painters of the Wasatch Mountains presents for the first time a survey of the gamut of painters who formed and have carried forward an expression of nature's mighty gift to both visitors and residents of Utah. As natural successor to the Hudson River School in the East, the "Wasatch school" persists because of the values we associate with that first of America's art movements-a dedication to place, a careful study, and interpretation of the environment in a spiritual and cultural context. The Painters of the Wasatch are not defined by a particular style or medium but by a physical presence that has unlimited appeal and inspiration. Over 300 artworks are included, from the earliest examples of painting in the nineteenth century to works by Utah's contemporary artists. Also included are brief biographies of each artist, with occasional stylistic analysis. Artists featured in this book include: William Warner Major Frank Ward Kent Dan Weggeland James T. Harwood John W. Clawson Edwin Evans Lee Greene Richards John Tullidge Lawrence Squires Valoy Eaton LeConte Stewart Mahonri Young John H. Stansfield Hal Burrows Waldo Midgley Maynard Dixon Joseph A. F. Everett Francis L. Horspool Alice Merrill Horne Dean Fausett Dennis Phillips Tom Leek Gary E. Smith