Search results for ""author william d. middleton""

Frank Julian Sprague invented a system for distributing electricity to streetcars from overhead wires. Within a year, electric streetcars had begun to replace horsecars, sparking a revolution in urban transportation. Sprague (1857–1934) was an American naval officer turned inventor who worked briefly for Thomas Edison before striking out on his own. Sprague contributed to the development of the electric motor, electric railways, and electric elevators. His innovations would help transform the urban space of the 20th century, enabling cities to grow larger and skyscrapers taller. The Middletons' generously illustrated biography is an engrossing study of the life and times of a maverick innovator.

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Early in the 19th century, growing American cities began to experience transportation problems. One solution was the horse-drawn streetcar, developed in 1832, but it soon proved inadequate. The first elevated train was transporting passengers above the streets of Manhattan by 1871; the first subway opened 25 years later in Boston; and similar systems soon followed in Philadelphia and Chicago. Rapid transit was confined to these few cities until after World War II, when a new generation of systems began to appear. In the 1970s, light rail became an economical alternative to conventional rapid transit. By century's end, some three dozen cities in the U.S., Canada, and Mexico operated metropolitan rapid transit or light rail systems that transported five billion urban passengers annually, and still more were under construction or planned. These diverse systems include elevated lines ranging from Chicago's "L" to the fully automatic Skytrain metro of Vancouver, B.C.; subways from New York City's thundering tunnels—the world's largest underground system—to the thoroughly modern metro of Guadalajara; and light rail from lovingly restored New Orleans streetcars to the sleek, articulated vehicles of Silicon Valley.Metropolitan Railways is a large-scale, extensively illustrated volume that deals with the growth and development of urban rail transit systems in North America. It traces the history of rail transit technology from such impractical early schemes as a proposed steam-powered "arcade railway" under New York's Broadway through today's sophisticated systems. Rapid transit enthusiasts as well as residents of cities that are potential candidates for rapid transit or light rail systems will find this book indispensable.

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This bestselling volume in The RequisitesT Series provides a comprehensive introduction to timely ultrasound concepts, ensuring quick access to all the essential tools for the effective practice of ultrasonography. Comprehensive yet concise, Ultrasound covers everything from basic principles to advanced state-of-the-art techniques. This title perfectly fulfills the career-long learning, maintenance of competence, reference, and review needs of residents, fellows, and practicing physicians. Covers the spectrum of ultrasound use for general, vascular, obstetric, and gynecologic imaging. Fully illustrated design includes numerous side-by-side correlative images. Written at a level ideal for residents seeking an understanding of the basics, or for practitioners interested in lifelong learning and maintenance of competence. Extensive boxes and tables highlight differential diagnoses and summarize findings. "Key Features" boxes offer a review of key information at the end of each chapter. Explore extensively updated and expanded content on important topics such as practical physics and image optimization, the thyroid, salivary glands, bowel, musculoskeletal system, cervical nodal disease, ectopic pregnancy, early pregnancy failure, management of asymptomatic adnexal cysts, practice guidelines - and a new chapter on fetal chromosome abnormalities. Visualize the complete spectrum of diseases with many new and expanded figures of anatomy and pathology, additional correlative imaging, and new schematics demonstrating important concepts and findings. Further enhance your understanding with visual guidance from the accompanying electronic version, which features over 600 additional figures and more than 350 real-time ultrasound videos. Expert Consult eBook version included with purchase. The enhanced eBook experience allows you to view the additional images and video segments and access all of the text, figures, and suggested readings on a variety of devices.

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