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This set of lectures collects surveys of open problems in celestial dynamics and dynamical astronomy applied to solar, extra-solar and galactic systems. The discovery and thus the possibility to study many new extra-solar planetary systems have spurred new developments in the field and enabled the testing and enlargement of the domains of validity of theoretical predictions through the Nekhoroshev theorem.

Resulting from a merger of two successful events, this book contains papers presented at the 11th International Conference on Waste Management and Environmental and Economic Impact on Sustainable Development. To prevent emerging threats to environmental and ecological systems we must learn from past failures to avoid repeating similar mistakes. Waste management is one of the key problems of modern society due to the ever-expanding volume and complexity of discarded domestic and industrial waste and its implications on health and the environment. Society is increasingly aware of the need to...