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This book constitutes the reviewed proceedings of the 8th International Conference on Integer Programming and Combinatorial Optimization, IPCO 2001, held in Utrecht, The Netherlands in June 2001. The 32 revised full papers presented were carefully reviewed and selected from a total of 108 submissions. The proceedings reflect most current directions in integer programming and optimization research. Among the topics covered are approximation algorithms, branch and bound algorithms, computational biology, computational complexity, algorithmic geometry, cutting plane algorithms, diophantine equations, geometry of members, graph and network algorithms, online algorithms, polyhedral combinatorics, scheduling theory and algorithms, and semidefinite programs.

This book constitutes the reviewed proceedings of the 8th International Conference on Integer Programming and Combinatorial Optimization, IPCO 2001, held in Utrecht, The Netherlands in June 2001. The 32 revised full papers presented were carefully reviewed and selected from a total of 108 submissions. The proceedings reflect most current directions in integer programming and optimization research. Among the topics covered are approximation algorithms, branch and bound algorithms, computational biology, computational complexity, algorithmic geometry, cutting plane algorithms, diophantine equations, geometry of members, graph and network algorithms, online algorithms, polyhedral combinatorics, scheduling theory and algorithms, and semidefinite programs.

"When eighteen-year-old Tommy Baxter declares he wants to be a police officer after graduation, his mother, Reagan, won't hear of it. She's still mourning the death of her own father on September 11 and she's determined to keep her son safe from danger and disaster. Tommy's father Luke arranges for his son to take part in a ride-along program with the Indianapolis Police Department. Meanwhile, Tommy is in love: Annalee Miller has been a family friend for years, and after prom Tommy is seriously thinking about asking her to marry him. When tests reveal she has cancer, Tommy is driven to learn more about the circumstances surrounding his birth--and the grandfather he never knew."

Karen Sargsyan was the winner of the Thieme Art Award during the 2007 Art Amsterdam art fair. The

Karen F. Stein University of Rhode Island, Kingston, USA Rachel Carson is the twentieth century’s most significant environmentalist. Her books about the sea blend science and poetry as they invite readers to share her celebration of the ocean’s wonders. Silent Spring, her graphic and compelling exposé of the damage caused by the widespread aerial spraying of persistent organic pesticides such as DDT, opened our eyes to the interconnectedness of all living beings and the ecological systems we inhabit. Carson’s work challenges our belief that science and technology can control the natural world, asks us to recognize our place in the world around us, and inspires us to treat the earth respectfully. She calls us to rekindle our sense of wonder at nature’s power and beauty, and to tread lightly on the earth so that it will continue to sustain us and our descendants. This book guides readers on a journey through Carson’s life and work, considers Carson’s legacies, and points to some of the continuing challenges to sustainability. It provides a listing of resources for reading, learning, or teaching about the environment, about nature writing, and about Carson and the crucial issues she addressed.