Food security and environmental conservation are two of the greatest challenges facing the world today. It is predicted that food production must increase by at least 70% before 2050 to support continued population growth, though the size of the world's agricultural area will remain essentially unchanged. This updated and thoroughly revised second edition provides in-depth coverage of the impact of environmental conditions and management on crops, resource requirements for productivity and effects on soil resources. The approach is explanatory and integrative, with a firm basis in environmental physics, soils, physiology and morphology. System concepts are explored in detail throughout the book, giving emphasis to quantitative approaches, management strategies and tactics employed by farmers, and associated environmental issues. Drawing on key examples and highlighting the role of science, technology and economic conditions in determining management strategies, this book is suitable for agriculturalists, ecologists and environmental scientists.
Geared toward high school students as well as for independent study, this text covers plane, solid, coordinate, vector, and non-Euclidean geometry. More than 2,000 illustrations. Electronic solutions manual available. 1977 edition.
Our physical world is embedded in a geometric environment. Plane geometry has many amazing wonders beyond those that are briefly touched on in school curriculums. The triangle, one of the basic instruments in geometry, has a plethora of unexpected curiosities. Geometric Gems presents one of the largest collections of triangle curiosities currently available, which the authors discuss in an easily understood fashion, requiring nothing more of readers other than the very basics of school geometry to appreciate these curiosities and their justifications or proofs.The book is intended to be widely appreciated by a general audience, and their love for geometry should be greatly enhanced through exploring these many unexpected relationships in geometry. Geometric Gems is also suitable for mathematics teachers, to enhance the education of their students with these highly motivating triangle properties.
Harwood's struggle to reach full manhood and assume his position as head of the family, his misgivings about challenging - much less displacing - his father, the changes American life brought to this traditional rite of passage, Hiram's relationships with wife and children, seasonal events, and all the day-to-day experiences of this finally tragic figure make for a fascinating story and provide a highly unusual window into antebellum American life.".
Now in its third edition, Epidemiology for Public Health Practice provides a comprehensive look at all major topics, from study designs and descriptive epidemiology to quantitative measures and termin
Pulse charts the growing power of a "new biology," of human systems and machines that work like living things. Written in simple prose, Pulse describes emotional computers; ships that swim like fish; hard, soft, and wet artificial life; farms that grow like prairies; technological ecosystems; money that mimics the energy flow in nature; evolution at warp speed; and a great deal more. And these are not blue-sky dreams; they are even now leaving labs and entering our daily lives." "Pulse is an original work, offering thoughtful conclusions about the promise - and dangers - of our transformation as we move into the next great phase of human cultural evolution."--BOOK JACKET.
Robert Nesbit's classic single-volume history of Wisconsin was expanded by Wisconsin State Historian William F. Thompson to include the period from 1940 to the late 1980s, along with updated bibliographies and appendices. First paperback edition.
Drawing from Eastern and Western literatures, Heinrich Zimmer presents a selection of stories linked together by their common concern for the problem of our eternal conflict with the forces of evil. Beginning with a tale from the Arabian Nights, this theme unfolds in legends from Irish paganism, medieval Christianity, the Arthurian cycle, and early Hinduism. In the retelling of these tales, Zimmer discloses the meanings within their seemingly unrelated symbols and suggests the philosophical wholeness of this assortment of myth."--Amazon.com.
Any reader who aspires to be scientifically literate will find this a good starting place." —Publishers Weekly While we may be familiar with some of science’s greatest equations, we may not know that each and every equation emerged not in "Eureka!" moments but in years of cultural developments and scientific knowledge. With vignettes full of humor, drama, and eccentricity, philosopher and science historian Robert P. Crease shares the stories behind ten of history’s greatest equations, from the "first equation," 1 + 1 = 2, which promises a rational, well-ordered world, to Heisenberg’s uncertainty principle, which reveals the limitations of human knowledge. For every equation, Crease provides a brief account of who discovered it, what dissatisfactions lay behind its discovery, and what the equation says about the nature of our world.
The 25th anniversary edition of the groundbreaking New York Times bestseller, with a new afterword by the author--which offers a new vision of what it is to be a man In this timeless and deeply learned classic, poet and translator Robert Bly offers nothing less than a new vision of what it means to be a man. Bly's vision is based on his ongoing work with men, as well as on reflections on his own life. He addresses the devastating effects of remote fathers and mourns the disappearance of male initiation rites in our culture. Finding rich meaning in ancient stories and legends, Bly uses the Grimm fairy tale "Iron John"-in which a mentor or "Wild Man" guides a young man through eight stages of male growth-to remind us of ways of knowing long forgotten, images of deep and vigorous masculinity centered in feeling and protective of the young. At once down-to-earth and elevated, combining the grandeur of myth with the practical and often painful lessons of our own histories, Iron John is an astonishing work that will continue to guide and inspire men-and women-for years to come.
Twenty-seven authors approach the diverse areas of the cultural, religious, and social life of the twelfth century. These essays form a basic resource for all interested in this pivotal century. A reprint of the first edition first published in 1982.
This is the first full history of voting in Wisconsin from statehood in 1848 to the present. Fowler both tells the story of voting in key elections across the years and investigates electoral trends and patterns over the course of Wisconsin's history. He explores the ways that ethnic and religious groups in the state have voted historically and how they vote today, and he looks at the successes and failures of the two major parties over the years. Highlighting important historical movements, Fowler discusses the great struggle for women's suffrage and the rich tales of many Wisconsin third parties--the Socialists, Progressives, the Prohibition Party, and others. Here, too, are the famous politicians in Wisconsin history, such as the La Follettes, William Proxmire, and Tommy Thompson. Winner, Award of Merit for Leadership in History, American Association for State and Local History
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