Over the past decade the sediments of many rivers, lakes, and estuaries have been contaminated by inorganic and organic materials. Contaminants from sediments, under certain conditions, can be released into overlying waters. Thus, sediments may be an important source of contaminants to waters in which littoral and atmospheric contaminants have been reduced or eliminated. Often found in aquatic sediments, metals are exposed to many reactions, such as sorption and precipitation, and are greatly influenced by the redox conditions in the sediment. The reactions - usually over a period of time - reflect biotic processing as well as chemical transformations. This book describes these important processes. Metal Contaminated Aquatic Sediments outlines advances in environmental chemistry, effective new modeling techniques, applications for biological treatment, and cycling and transport of trace metals in sedimentary environments. Each chapter contains a detailed reference section that draws upon a stunning array of sources. The book includes many figures and tables that illustrate the process under discussion. Features
With more than 750 illustrations, including 300 color photographs, this guide covers more than 1,000 species, such as shoreside plants, clams, shrimps, crabs, corals, seaweeds, sponges, and sea urchins, as well as all of the common seashore communities found from Cape Hatteras to the Gulf Coast, Florida, and the Caribbean.
With more than 500 species described and more than 400 illustrations, this guide provides quick and easy visual identification of fishes, mollusks, sponges, shrimps, lobsters, crabs, and much more of the fauna found on the coral reefs of the Caribbean and Florida.
The first part of the book develops a battery of scientifically based tools to aid the reconstruction of biblical Dead Sea Scrolls, which, when applied together, substantially improve the quality of reconstruction attainable. The focus then moves to the important non-masoretic but fragmentary biblical scroll, 4QSama, for which sixty-two new fragment identifications and an analysis of the character of the scroll are presented. Based upon this, a detailed reconstruction of the 4QSama fragments of 2 Samuel is undertaken, revealing 55% more deviations from the Masoretic text than had previously been identified. The effectiveness of the new method is thus demonstrated. Data concerning the support of key Hebrew and Greek witnesses provides a valuable foundation for the study of the history and development of the biblical text.
Recognizing that many skin disorders have a predilection to occur at specific sites, Goodheart’s Same- Site Differential Diagnosis, 2nd Edition, is organized in a convenient, head-to-toe fashion so physicians can quickly reach a differential diagnosis between skin disorders that are often confused with each other. Drs. Herbert P. Goodheart Mercedes E. Gonzalez presents hundreds of full-color images of common skin disorders side by side with their clinical look-alikes or other diagnostic possibilities that occur at the same anatomic site for easy comparison. Ideal for the non-dermatologist and dermatologists in training, this fully updated, highly illustrated text is invaluable for all clinicians who are on the front line of diagnosing and treating skin disorders.
During the past few decades we have witnessed an era of remarkable growth in the field of molecular biology. In 1950 very little was known of the chemical constitution of biological systems, the manner in which information was transmitted from one organism to another, or the extent to which the chemical basis of life is unified. The picture today is dramatically different. We have an almost bewildering variety of information detailing many different aspects oflife at the molecular level. These great advances have brought with them some breath-taking insights into the molecular mechanisms used by nature for replicating, distributing and modifying biological information. We have learned a great deal about the chemical and physical nature of the macro molecular nucleic acids and proteins, and the manner in which carbohydrates, lipids and smaller molecules work together to provide the molecular setting of living systems. It might be said that these few decades have replaced a near vacuum of informa tion with a very large surplus. It is in the context of this flood of information that this series of monographs on molecular biology has been organized. The idea is to bring together in one place, between the covers of one book, a concise assessment of the state of the subject in a well-defined field. This will enable the reader to get a sense of historical perspective what is known about the field today - and a description of the frontiers of research where our knowledge is increasing steadily.
This book is about spaceborne missions and instruments. In addition, surveys of airborne missions and of campaigns can be found on the accompanying CD-ROM in pdf-format. Compared with the 3rd edition the spaceborne part grew from about 300 to 1000 pages. The complete text - including the electronic-only chapters - contains more than 1900 pages. New chapters treat the history of Earth observation and university missions. The number of commercial Earth imaging missions has grown significantly. A chapter contains reference data and definitions. Extensive appendices provide a comprehensive glossary, acronyms and abbreviations and an index of sensors. An effort has been made to present the information in context, to point out relationships and interconnections. The book may serve as a reference and guide to all involved in the various national and international space programs: researchers and managers, service providers and data users, teachers and students.
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