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Scientists who have had the opportunity of being associated with Professor Egon T. Degens, to whom this Festschrift is devoted, have been influenced by his ideas on subjects as varied as: extraterrestrial organic matter, origin of life, evolution of organisms, isotope biogeochemistry down to more imminent ones such as the carbon cycle and its implications on climate. This variety is also reflected in the papers in the present volume contributed by colleagues who have known Egon or have worked with him. Egon Theodor Degens was born on April 16, 1928 at Inden, Germany and had his education in...

Silicon is among the most abundant elements on earth. It plays a key but largely unappreciated role in many biogeochemical processes, including those that regulate climate and undergird marine food webs."The Silicon Cycle" is the first book in more than 20 years to present a comprehensive overview of the silicon cycle and issues associated with it. The book summarizes the major outcomes of the project Land-Ocean Interactions: Silica Cycle, initiated by the Scientific Community on Problems of the Environment (SCOPE) of the International Council of Scientific Unions (ICSU). It tracks the...

This book provides a developing country perspective on the internationalization of science and the role of Science, Technology and Innovation Diplomacy (STID) in leveraging scientific cooperation for sustainable development. In articles by individuals from government departments and academic & research institutions in nine developing countries, it provides a conceptual understanding of the subject and reveals the prevailing perceptions on its praxis/practices. The articles highlight the significance of international cooperation at bilateral, regional and multilateral levels and the need for...