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"Indoor Pollution" educates concerned readers about the sources of indoor pollutants, the illnesses associated with them, and the measures used to control them. Readers will also find a comprehensive listing of relevant laws and regulations, a directory of organizations, a complete bibliography, and a listing of audio/visual aids. Appendixes listing organizations, chemical compounds, measurements, and testing information complete the volume.

What causes killer floods? Why are they so destructive? Can they be predicted, tamed, or eliminated? Find the answers in "Natural Disasters: Floods," which discusses where and how often floods occur in the United States, how the federal government handles flood control, and the extent of the economic and social damage caused by floods.

Symmetries in various forms pervade mathematics and physics. Globally, there are the symmetries of a homogenous space induced by the action of a Lie group. Locally, there are the infinitesimal symmetries induced by differential operators, including not only those of first order but of higher order too. This three-week summer program considered the symmetries preserving various natural geometric structures. Often these structures are themselves derived from partial differential equations whilst their symmetries turn out to be contrained by overdetermined systems. This leads to further...