Paradigms benign

The benign shock paradigm is clearly an approximation, but one that has proven very effective. The catastrophic shock paradigm corresponds to the known physical, mechanical, and chemical processes, but its characteristics have proven difficult to quantify. 

The fluid mechanics origins of shock-compression science are reflected in the early literature, which builds upon fluid mechanics concepts and is more concerned with basic issues of wave propagation than solid state materials properties. Indeed, mechanical wave measurements, upon which much of shock-compression science is built, give no direct information on defects. This fluids bias has led to a situation in which there appears to be no published terse description of shock-compressed solids comparable to Kormer s for the perfect lattice. Davison and Graham described the situation as an elastic fluid approximation. A description of shock-compressed solids in terms of the benign shock paradigm might perhaps be stated as ... 

From the viewpoint of thinking about chemistry-based manufacturing and the environment, it becomes clear that what we need are paradigm shifts. We need to move from an atmosphere of monitoring to minimize pollution to one in which environmentally benign manufacturing is the norm - because it makes economic, engineering, and... 

This volume details how chemists from all over the world are using their creativity and innovation to develop new synthetic methods, reaction conditions, analytical tools, catalysts and processes under the new paradigm of Green Chemistry. It is a challenge for the chemistry community to look at the excellent work that has been and continues to be done and to ask the question, "Is the chemistry I am doing the most benign that I can make it ". 

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