Steve and Lily Bailey continue their work to bring God's Word to troubled villagers with the help of their new Cessna airplane.

From eminent biologists like Alfred Russel Wallace and Charles Darwin to famous authors such as Rudyard Kipling in his Just So Stories, many people have asked, “Why do zebras have stripes?” There are many explanations, but until now hardly any have been seriously addressed or even tested. In Zebra Stripes, Tim Caro takes readers through a decade of painstaking fieldwork examining the significance of black-and-white striping and, after systematically dismissing every hypothesis for these markings with new data, he arrives at a surprising conclusion: zebra markings are nature’s defense against biting fly annoyance. Popular explanations for stripes range from camouflage to confusion of predators, social facilitation, and even temperature regulation. It is a serious challenge to test these proposals on large animals living in the wild, but using a combination of careful observations, simple field experiments, comparative information, and logic, Caro is able to weigh up the pros and cons of each idea. Eventually—driven by experiments showing that biting flies avoid landing on striped surfaces, observations that striping is most intense where biting flies are abundant, and knowledge of zebras’ susceptibility to biting flies and vulnerability to the diseases that flies carry—Caro concludes that black-and-white stripes are an adaptation to thwart biting fly attack. Not just a tale of one scientist’s quest to solve a classic mystery of biology, Zebra Stripes is also a testament to the tremendous value of longitudinal research in behavioral ecology, demonstrating how observation, experiment, and comparative research can together reshape our understanding of the natural world.

MODERN AUTOMOTIVE ELECTRICAL SYSTEMS Presenting the concepts and advances of modern automotive electrical systems, this volume, written and edited by a global team of experts, also goes into the practical applications for the engineer, student, and other industry professionals. In recent decades, the rapid and mature development of electronics and electrical components and systems have inevitably been recognized in the automotive industry. This book serves engineers, scientists, students, and other industry professionals as a guide to learn fundamental and advanced concepts and technologies with modelling simulations and case studies. After reading this book, users will have understood the main electrical and electronic components used in electric vehicles (EVs). In this new volume are many fundamentals and advances of modern automotive electrical systems, such as advanced technologies in modern automotive electrical systems, electrical machines characterization and their drives technology for EVs, modeling and analysis of energy storage systems, applied artificial intelligence techniques for energy management systems, fault detection and isolation in electric powertrains, and thermal management for automotive electrical systems. Also covered are new innovations, such as the use of power electronics in low and high voltage circuits, electrified propulsion systems, energy storage systems, and intelligent energy management methods in EVs. Valuable as a learning tool for beginners in this area as well as a daily reference for engineers and scientists working in these areas, this is a must-have for any library.

The approach of this treatise is physiological throughout. In the eyes of the author it answers the rhetorical question raised by Maurice B. Visscher at the Physiology Congress in Washington D. C. in 1968: Does physiology exist? What he meant by this question was whether the fields of cellular physiology and physiology of the various organ systems had become so large that physiology as such had vanished. The firm answer is that physiology does indeed exist. Although it is important to study physiological problems at the subcellular level, it is importan- and equally difficult - to study organ regulation at the cellular level, organ interaction, and integration into the whole organism. An account of avian osmoregulation from an integrated point of view is attempted in this book. Since reading Homer W. Smith's From Fish to Philosopher and August Krogh's Osmoregulation in Aquatic Animals verte brate osmoregulation has been in the center of the author's interest. The focus was set on avian osmoregulation after personal contact with the School of Krogh when working in the laboratory of Bodil M. Schmidt-Nielsen. The fundamental concepts and isotope techniques introduced by Hans H. Ussing have been of constant inspiration. An excellent example for the study of osmoregulation at the cellular level was given by the late Jean Maetz. The writing of this book was suggested by Donald S. Farner who is thanked for thorough editorial assistance, and especially with help in the subtle semantic peculiarities of the English language.

This volume illuminates how creative representations remain sites of ongoing struggles to engage with animals in indigenous epistemologies. Traditionally imagined in relation to spiritual realms and the occult, animals have always been more than primitive symbols of human relations. Whether as animist gods, familiars, conduits to ancestors, totems, talismans, or co-creators of multispecies cosmologies, animals act as vital players in the lives of cultures. From early days in colonial contact zones through contemporary expressions in art, film, and literature, the volume’s unique emphasis on Southern Africa and North America – historical loci of the greatest ranges of species and linguistic diversity – help to situate how indigenous knowledges of human-animal relations are being adapted to modern conditions of life shared across species lines.

David Busch's Sony a77 II Guide to Digital Photography is your all-in-one comprehensive Filled with detailed how-to steps and full-color illustrations, this is your all-in-one comprehensive resource for the Sony a77 III, written by best-selling author David Busch!resource and reference for the Sony a77 II camera. This advanced Sony model features a new autofocus sensor with an industry-leading 79 AF points, and lightning fast tracking. It can capture 24-megapixel images at a blazing fast 12 fps or shoot 1080p high-definition movies with stereo sound. With this book in hand, you will explore the world of digital photography, develop your creativity, and take great photographs with your a77 II. Filled with detailed how-to steps and full-color illustrations, David Busch's Sony a77 II Guide to Digital Photography covers all the camera's features in depth, from taking your first photos through advanced details of setup, exposure, lens selection, lighting, and more, and relates each feature to specific photographic techniques and situations. Also included is the handy a77 II "roadmap," an easy-to-use visual guide to the camera's features and controls. Learn when to use each option and, more importantly, when not to use them, by following the author’s recommended settings for every menu entry. With best-selling photographer and mentor David Busch as your guide, you'll quickly have full creative mastery of your camera’s capabilities, whether you're shooting on the job, as an advanced enthusiast, or are just out for fun. Start building your knowledge and confidence, while bringing your vision to light with the Sony a77 II today.

"One of the finest works to come out in recent years on cowboy songs, in addition to being the first good collection of the cowboy's bawdy material. . . . A must for anyone who is a student of cowboy music--or anyone who just likes the sound of dirty subject matter rhyming." -- Hal Cannon, Journal of Country Music "A brave and honest step toward increasing our understanding of what cowboys really sing." -- Bob Bovee, Old Time Herald "A thorough piece of scholarship and collectanea and a valuable, welcome addition to cowboy song literature." -- Keith Cunningham, Mid-America Folklore "Logsdon has written the book with a scholar's attention to detail. But what shows through the scholarship is the collector's enthusiasm for the material. . . . A superb job in a difficult area." -- Angus Kress Gillespie, Journal of American History "A major contribution to the folklore and popular culture, history, and social psychology of American cowboy culture." -- Kenneth S. Goldstein, former president, American Folklore Society