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Massimiano Bucchi reviews the existing literature, and presents a theoretical framework on how and why scientists address the general public, focusing on three cases: anthrax, the Big Bang, and cold fusion. ... Read more

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Meat has been treated for centuries with rock salt as a means of preservation. However, only one century has passed since the German researchers, Polenske in 1891, Kisshalt in 1899, and Lehmann in 1899, discovered that the active component in the curing process was nitrite. Soon after the role of nitrite as a meat curing agent was revealed, government regulators placed guidelines on the level of nitrite and nitrate permitted for use in cured meat formulations. In the late 1960s and early 1970s, the development of the so-called "nitrite problem" surfaced because of the detection of N-nitrosamines in processed meats. The industry was in an uproar and the issue was of paramount interest to scientists and the public. A major technical advance in the analytical technique for N-nitrosamine detection was achieved when Thermo Electron of Waltham, Massachusetts introduced the thermal energy analyzer (TEA). This unit allowed the screening of a large number of samples for nitrosamine with only a minimum preparation. The role of nitrite in revealing the desired and unique flavor of cured products, perhaps by suppressing the formation of lipid oxidation products was another development in revealing other properties of nitrite. Above all, the antimicrobial role of nitrite, together with salt, had a major influence on the popularity of nitrite/nitrate in food preservation.

This book provides a review of the desirable attributes which sodium nitrite confers to meat during processing, as well as drawbacks of nitrite usage, i.e., the presence of N-nitrosoamines. In addition, solutions for the curing of meat without the use of nitrite are presented. An examination of a multicomponent nitrite-free curing system entailing the color, flavor, and microbial protection of such a system is given. ... Read more

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The goal of this book is to summarise the recent advances in carbon nanotubes as a new material for electrochemical sensors. Since their discovery in 1991, carbon nanotubes have received considerable attention in different fields. Their special geometry and unique electronic, mechanical, chemical and thermal properties make them a very attractive material for the design of electrochemical biosensors. The first application of carbon nanotubes in the preparation of a sensor was reported by Britto in 1996. Since then, an increasing number of publications involving sensors based on carbon nanotubes (either single or multi-wall) for substrates like glucose, lactate, alcohols, phenols, neurotransmitters, aminoacids, proteins, carbohydrates among others, have been reported. This fact demonstrates the usefulness of carbon nanotubes for the development of electrochemical sensors.The advantages of carbon nanotubes for promoting electron transfer reactions - with special emphasis in those involving biomolecules, the different methodologies for incorporating carbon nanotubes in sensors (either suspended in solutions, in polymeric films or in composite matrices), the analytical performance of the resulting biosensors as well as future prospects are discussed in this book. ... Read more

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These original essays offer new perspectives for science educators, curriculum theorists, and cultural critics on science education, French post-structural thought, and the science debates. Included in this book are chapters on the work of Bruno Latour, Michel Serres, and Jean Baudrillard, plus chapters on postmodern approaches to science education and critiques of modern scientific assumptions in curriculum development. ... Read more

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A case study in performance ethnography in which focus group transcripts become the basis for a stage presentation about women with breast cancer. ... Read more

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This book assesses a broad range of mobile technologies thathave been proposed by agencies throughout the world as alternatives toincineration for the remediation and destruction of chemical warfareagents and associated materiel. Treatments of both metalparts and explosive or energetic materials are considered. Thealternative technologies are grouped into three categories based onprocess bulk operating temperature: low (0--200`C), medium(200--600`C), and high (600--3500`C). Reactionsconsidered include neutralization, biodegradation, hydrolysis,electrochemical oxidation, supercritical water oxidation, wet airoxidation, plasma reactions, gasification, hydrogenation, pyrolysis,and others. A broad spectrum of processes are described, many of whichare as yet only in the laboratory stage while others are in commercialuse. Audience: Engineers, technologists and decision makers whorequire an understanding of the developmental status of alternativedemilitarization technologies. ... Read more

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A collection of essays on American space policy issues. After examining existing space programmes and the context in which they exist, the contributors suggest alternatives such as NASA's Earth Observing System and manned and unmanned programmes. ... Read more

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This work provides a guide to a variety of strategies and classroom activities: a collection of experience and ideas about different teaching methods which should benefit both trainee and practising teachers. ... Read more

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Energy drives all life and is a key component to how humanity works, lives, and sustains itself. Due to the depletion of existing energy sources and the damage being done to the earth's ecosystems, renewable, non-polluting energy sources such as solar, wind, and geothermal power, are being developed and implemented. ... Read more

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This volume focuses on recent developments and advances of ceramics and ceramic matrix composites for use in fission and fusion reactors, nuclear fuels and alternative energy applications. With the continued increasing demands for energy, nuclear energy has experienced a renewed interest. Recent developments associated with advanced fuel cycles have resulted in new research efforts on nuclear fuel materials. The effects of radiation on the properties of ceramics and ceramic matrix composites are also addressed. ... Read more

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Hardbound. The objective of this conference was to: -provide a global overview of the present status of replacement alternatives, reduction alternatives and refinement alternatives;-review the progress that has been made with respect to their implementation within the fields of biomedical research, testing and education;-promote the exchange of information on recent developments in animal alternatives; and-contribute to an ongoing dialogue between the animal protection movement, the scientific community, the regulatory authorities and industry. These objectives were fully achieved, and the results have been published in this volume.

The contents of this book provide an up-to-date overview of the various aspects dealing with the development, validation and use of animal alternatives. In addition, current topics on animal welfare and ethical aspects of animal experiments are covered. ... Read more

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This series investigates scientific developments and theories that give rise to popular and widespread interest, concern and controversy. Each book looks at a different source of controversy and: - introduces the personalities and interest groups - features details of the development or discovery - explains the underlying science and techniques - reviews the issues and opinions involved - uses a variety of examples and evidence ... Read more

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