Описание: Over the course of 30 years Edward S. Curtis exhaustively documented America`s first inhabitants. Follow along on his visits to 80 American Indian tribes from the Mexican border to the Bering Strait-working up to 16 hours a day to gain their trust and document their traditional way of life as it was already beginning to die out. This unabridged,...
Автор: King, Philip Burke Название: Evolution of north america ISBN: 0691632960 ISBN-13(EAN): 9780691632964 Издательство: Wiley Рейтинг: Цена: 15840.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание:
In revising his now classic work on the geology of North America, Philip B. King has devoted attention both to the new concepts of global tectonics and to new facts obtained from fieldwork in recent years. From its overview of the natural history of continents, to the sections describing the characteristics and history of each region, this remains a fundamental text on continental geology.
Originally published in 1977. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.
Автор: Dickinson Richard, Royer France Название: Weeds of North America ISBN: 022607644X ISBN-13(EAN): 9780226076447 Издательство: Wiley Рейтинг: Цена: 4910.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: What is a weed," opined Emerson, "but a plant whose virtues have not yet been discovered?" While that may be a worthy notion in theory, these plants of undiscovered virtue cause endless hours of toil for backyard gardeners. Encyclopedic in scope, this book intends to cover North American weeds at every stage of growth.
Описание: Drs. Helio Autran de Morais and Stephen DiBartola have assembled a comprehensive list of topics on Advances in Fluid, Electrolyte, and Acid-base Disorders. Just some of the many article topics include: Hypoxemia; Respiratory Alkalosis; Respiratory Acidosis; Anion gap and strong ion gap; Metabolic Alkalosis; Hyperchloremic Metabolic Acidosis; High Anion Gap Metabolic Acidosis; Hypercalcemia; Hypocalcemia; Chloride; Magnesium; Phosphorus; Practical management of dysnatremias; Spurious electrolyte disorders; Compensation for acid-base disorders; Fluid therapy: Options and rational selection; Maintenance fluid therapy: Isotonic versus hypotonic solutions; Are colloids bad and what are the options?; Fluid management in patients with trauma; Restrictive versus liberal approach, and more
Описание: This issue of Foot and Ankle Clinics will focus on controveries and will include topics such as: Arthrodesis vs. ORIF for lisfranc injuries; What is the role for percutaneous treatment of Lisfranc injuries; Syndesmosis fixation- screws vs. flexible fixation; Management of late syndesmosis issues; Small incision vs.
extensile lateral for calc fractures; and many more!
Introduction.- Geological background.- Neoarchean basement rock assemblage, crust-mantle interactions and crustal evolution of Western Liaoning Province.- Paleo- to Mesoproterozoic magmatic rock assemblage and crust-mantle geodynamic processes.- Precambrian crustal evolution, lithospheric mantle evolution and crust-mantle geodynamics of Western Liaoning-Northwest Hebei Provinces.- Concluding remarks.
Описание: This thesis presents geological, petrological, geochemical, and zircon U–Pb–Lu–Hf isotopic field data for representative Precambrian lithologies in the Western Liaoning-Northeastern Hebei Provinces along the northern margin of the North China Craton (NCC). It describes late Neoarchean (2.64–2.48 Ga) supracrustal metavolcanic rocks and granitoid gneisses; late Paleoproterozoic (1.72–1.68 Ga) Jianping alkaline plutons and Pinggu alkaline volcanic rocks; and newly discovered ~1.23 Ga mafic dykes. The nature of magma sources and genesis of each magmatic episode are investigated, and the Precambrian (~2.6–1.2 Ga) lithospheric mantle evolution and crust-mantle interaction processes are established for the first time –aspects that provide important constraints in our understanding of the Precambrian crustal evolution and geodynamic processes in the region studied.
Bird migration is a well-researched phenological event. However, few studies in North America have investigated the effects of climate change and extreme weather on the relationships of migratory avian species and their seasonal resources. This is a critical gap in knowledge that limits our ability to prioritize management and conservation applications throughout the annual cycle. Phenological Synchrony and Bird Migration: Changing Climate and Seasonal Resources in North America explores critical linkages between migratory birds, their seasonal resources, and shifts in climate change and weather events.
Gathered from projects conducted during spring or fall migration, the book covers topics such as:
Conservation and management considerations for migratory birds throughout the United States with respect to climate change
The relation of climate on the wintering grounds to spring migration of short- and long-distance migratory birds
The relationships of migratory birds and their seasonal resources, and the nature of these relationships in the face of climate change and extreme weather events at stopover habitats in both spring and fall migration
With contributions from over 40 researchers, the book will help readers understand the effects of climate change on migratory birds and will provide a solid basis for further inquiry and research in this area.
Автор: Savard Jean-Pierre, Derksen Dirk V., Esler Dan Название: Ecology and Conservation of North American Sea Ducks ISBN: 1482248972 ISBN-13(EAN): 9781482248975 Издательство: Taylor&Francis Рейтинг: Цена: 29093.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание:
The past decade has seen a huge increase in the interest and attention directed toward sea ducks, the Mergini tribe. This has been inspired, in large part, by the conservation concerns associated with numerical declines in several sea duck species and populations, as well as a growing appreciation for their interesting ecological attributes. Reflecting the considerable research recently conducted on this tribe, Ecology and Conservation of North American Sea Ducks examines the 15 extant species of sea ducks from North America.
Chapters are organized conceptually to focus on, compare, and contrast the ecological attributes of the tribe. Experts provide in-depth treatments of a range of topics, including:
Population dynamics and genetics
Infectious diseases and parasites
Breeding costs and cross-seasonal affects
Contaminant burdens
Foraging behavior and energetics
Migration strategies, molt ecology, and habitat affinities and dynamics
Breeding systems and reproductive behavior
Harvest history
The book presents a comprehensive synthesis of sea duck ecology, documents factors that have caused population declines of some species, and provides managers with measures to enhance recovery of depressed populations of sea ducks in North America. Capturing the current state of knowledge of this unique tribe, it provides a benchmark for where we are in conservation efforts and suggests future directions for researchers, managers, students, conservationists, and avian enthusiasts.
Over the last decade governments in Europe and North America have attempted to improve efficiency of public services through Information and Communication Technology, commonly branded as electronic government (e-government). Public Sector Transformation through E-Government explores the influence that e-government has on public sector organizations, the organizational complexities that result, and its impact on citizens and democratic society.
This book examines e-government's potential to transform public services from a theoretical perspective, and provides practical examples from leading public sector institutions that have utilized e-government as a basis to bring about change. It further investigates the relationship between citizens and government and how they are affected by e-government policies and programs. Aimed at students and researchers of public administration/management and information systems, this book serves as a welcome tool for examining and understanding e-government and transformational change.
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