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Bioavailability of Contaminants in Soils and Sediments

Bioavailability of Contaminants in Soils and Sediments
Author: National Research Council
Publisher: National Academies Press
Total Pages: 433
Release: 2003-05-03
Genre: Technology & Engineering
ISBN: 0309086256

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Bioavailability refers to the extent to which humans and ecological receptors are exposed to contaminants in soil or sediment. The concept of bioavailability has recently piqued the interest of the hazardous waste industry as an important consideration in deciding how much waste to clean up. The rationale is that if contaminants in soil and sediment are not bioavailable, then more contaminant mass can be left in place without creating additional risk. A new NRC report notes that the potential for the consideration of bioavailability to influence decision-making is greatest where certain chemical, environmental, and regulatory factors align. The current use of bioavailability in risk assessment and hazardous waste cleanup regulations is demystified, and acceptable tools and models for bioavailability assessment are discussed and ranked according to seven criteria. Finally, the intimate link between bioavailability and bioremediation is explored. The report concludes with suggestions for moving bioavailability forward in the regulatory arena for both soil and sediment cleanup.


Surgery

Surgery
Author: Jeffrey Norton
Publisher: Springer Science & Business Media
Total Pages: 2419
Release: 2009-04-21
Genre: Medical
ISBN: 0387681132

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Much anticipated, the Second Edition of Surgery: Basic Science and Clinical Evidence features fully revised and updated information on the evidence-based practice of surgery, including significant new sections on trauma and critical care and the often challenging surgical care of unique populations, including elderly, pediatric, immunocompromised, and obese patients as well as timely new chapters on the pre- and post-operative care of the cardiac surgery patient, intestinal transplantation, surgical infections, the fundamentals of cancer genetics and proteomics. Also new to this edition are discussions of electrosurgical instruments, robotics, imaging modalities, and other emerging technologies influencing the modern practice of surgery. Clinically focused sections in gastrointestinal, vascular, cardiothoracic, transplant, and cancer surgery enable the surgeon to make decisions based upon the most relevant data in modern surgical practice. The text is enhanced by more than 1,000 illustrations and hundreds of the signature evidence-based tables that made the first edition of SURGERY an instant classic.


Nature Knows No Color-Line

Nature Knows No Color-Line
Author: J. A. Rogers
Publisher: Wesleyan University Press
Total Pages: 252
Release: 2012-01-01
Genre: Social Science
ISBN: 0819575518

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The classic refutation of scientific racism from the renowned African American journalist and author of Africa’s Gift to America. In Nature Knows No Color-Line, originally published in 1952, historian Joel Augustus Rogers examines the origins of racial hierarchy and the color problem. Rogers was a humanist who believed that there were no scientifically evident racial divisions—all humans belong to one “race.” He believed that color prejudice generally evolved from issues of domination and power between two physiologically different groups. According to Rogers, color prejudice was then used a rationale for domination, subjugation and warfare. Societies developed myths and prejudices in order to pursue their own interests at the expense of other groups. This book argues that many instances of the contributions of black people had been left out of the history books, and gives many examples. “Most contemporary college students have never heard of J.A Rogers nor are they aware of his long journalistic career and pioneering archival research. Rogers committed his life to fighting against racism and he had a major influence on black print culture through his attempts to improve race relations in the United States and challenge white supremacist tracts aimed at disparaging the history and contributions of people of African descent to world civilizations.” —Thabiti Asukile, “Black International Journalism, Archival Research and Black Print Culture,” The Journal of African American History