Taking an Exposure History


Book Description




Toxicological Profile for Aluminum (Update)


Book Description

This report provides information about aluminum and the human health effects of exposure. This chemical has been found in many sites identified by the EPA for long-term Federal cleanup activities. The report includes a Public Health Statement which explains the toxicologic properties of aluminum in a nontechnical, Q&A format, and a review of the general health effects observed following exposure; a description of health effects; how the chemical can affect children; and information on its chemical and physical properties, production, use and disposal, potential for human exposure, analytical methods, and regulations and advisories.




Africans


Book Description

An updated and comprehensive single-volume history covering all periods from human origins to contemporary African situations.







Sirius


Book Description

This book tells two stories. The first and most obvious is why the star known as Sirius has been regarded as an important fixture of the night sky by many civilizations and cultures since the beginnings of history. A second, but related, narrative is the prominent part that Sirius has played in how we came to achieve our current scientific understanding of the nature and fate of the stars. This is the first book to integrate the cultural history of Sirius with modern astrophysics in a way which provides a realistic view of how science progresses over time.




Potential Impact on the U. S. Economy and Selected Industries of the North American Free Trade Agreement


Book Description

Examines (1) the overall economic effects of the NAFTA on the economies of the U.S., Mexico, and Canada; (2) the key NAFTA provisions and related legal changes that may affect individual sectors; and (3) the short- and long-term impact of NAFTA on important industrial, energy, agricultural, and service sectors of the U.S. economy. Also summarizes recent economic developments in Mexico. Tables and figures.




Biosensors for Direct Monitoring of Environmental Pollutants in Field


Book Description

Biosensors offer clear and distinct advantages over standard analytical methods for the direct monitoring of environmental pollutants in the field, such as real-time detection with minimum sample preparation and handling. The present book highlights recent advantages that will be of great value to a range of scientists, researchers and students dealing with analytical and environmental chemistry and biosensor technology. It presents recent trends in analytical methodology for the determination of indoor and outdoor pollutants, advances in DNA, biological and recognition-based sensors, examples of biosensors for use in field and water analysis, biosensors based on non-aqueous systems, and recent advances in the miniaturisation and micromachining of biosensors.




Spell of the Urubamba


Book Description

This work examines the valley of the Urubamba River in terms of vertical zonation, Incan impact on the environment, plant use, the history of exploration and the notion of discovery, the idea of land reform, and cultural contact with the European world. Winding its path northward from the Andean Highlands to the Amazon, the valley has served as the stage of pre-Columbian civilizations and focal point of Spanish conquest in Peru. "Gade left behind not only a superb body of scholarly work, but a network of colleagues and students who remain indebted to his example. This book should serve as an inspiration for all scholars who wish to pursue the Sauerian, counter enlightenment or post development agendas of understanding and respecting particular places in all their historical and cultural complexity, including ambiguities and contradictions." -- The Geographical Review, American Geographical Society