Shallow water acoustics (SWA), the study of how low and medium frequency sound propagates and scatters on the continental shelves of the worlds oceans, has both technical interest and a large number of practical applications. Technically, shallow water poses an interesting medium for the study of acoustic scattering, inverse theory, and propagation physics in a complicated oceanic waveguide. Practically, shallow water acoustics has interest for geophysical exploration, marine mammal studies, and naval applications. Additionally, one notes the very interdisciplinary nature of shallow water acoustics, including acoustical physics, physical oceanography, marine geology, and marine biology. In this specialized volume the authors, all of whom have extensive at-sea experience in US and Russian research efforts, have tried to summarize the main experimental, theoretical, and computational results in shallow water acoustics, with an emphasis on providing physical insight into the topics presented.
Martin and Osa Johnson thrilled American audiences of the 1920s and 30s with their remarkable movies of far-away places, exotic peoples, and the dramatic spectacle of African wildlife. Their own lives were as exciting as the movies they made--sailing through the South Sea Islands, dodging big game at African waterholes, flying small planes over the veldt, taking millionaires on safari. Osa Johnson's ghostwritten autobiography, I Married Adventure, became a national bestseller. The 1939 film version was billed as "the story of World Exploration's First Lady, whose indomitable daring would be stayed by neither snarling lion nor crouching leopard, tropic tempest nor savage tribesman " Heroes to millions, Osa and Martin seemed to embody glamor, daring, and the all-American ideal of self-reliance. Probing beneath the glamor of the Johnsons' public image, Pascal and Eleanor Imperato explore the more human side of the couple's lives--and ways the Johnsons shaped, for better and for worse, America's vision of Africa. Drawing on many years of research, access to a wealth of letters and archives, interviews with many who worked closely with the Johnsons, and their own deep knowledge of Africa, the authors present a fascinating and intimate portrait of this intrepid couple.
Soil Solarization describes the principles and technology of soil solarization and the use of soil solarization for different crops and cropping systems. The book evaluates and interprets the extensive amount of literature available on soil solarization in relation to climatic effects and changes in populations of soil-borne microorganisms and weeds. It also compares the advantages and disadvantages of soil solarization with other methods of soil disinfestation, such as soil steaming and fumigation. Soil Solarization explores the effects of soil solarization, covering such points as biological control, changes in soil chemistry involving mineral elements, as well as other changes, such as soil salinity and soil structure. It is suitable for solarizers, researchers working with soil-borne pathogens and soil microbiology, plant protection experts, and other plant researchers and extension specialists.
Native and Christian is an anthology of essays by indigenous writers in the United States and Canada on the problem of native Christian identity. This anthology documents the emergence of a significant new collective voice on the North American religious landscape. It brings together in one volume articles originally published in a variety of sources (many of them obscure or out-of-print) including religious magazines, scholarly journals, and native periodicals, along with one previously unpublished manuscript.
This work is intended as a useful companion for anybody interested in general or basic knowledge about any aspect of the most populous state in the Union. It is designed to be serviceable to a wide variety of readers and consultants, whose range might include residents and tourists, high-school and college students, as well as scholars seeking a ready reference. At present no single volume comprehends such a scope as this one and although it treats its subjects briefly, many an entry also includes data not found elsewhere in a single place. Reference to hundreds of books and articles would be required to provide the information that is here between the two covers.
Few states of the United States have a more varied, a more interesting or a more instructive history than California, and few have done so little to preserve their history. In narrating the story of California, the author has endeavored to deal justly with the different eras and episodes of its history; to state facts; to tell the truth without favoritism or prejudice; to give credit where credit is due and censure where it is deserved. This accounts also for the prominence of Los Angeles in the second half of this volume. The consolidation of Los Angeles city and the cities of Wilmington, San Pedro and Hollywood has merged the history of these three into that of the Greater Los Angeles. The early history of these cities is given separately up to their consolidation. All over this book is a real treasure chest and every single of its more than 400 pages is a must-read for the people of California and Los Angeles County.
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