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This book bridges the gap between ecotoxicology and limnology, offering an ecotoxicological perspective on lake management. The text describes eutrophication of shallow, temperate lakes, and examines the influence of toxic substances on the aquatic ecosystem, and proposes that nutrients like phosphorus are not the only important factor in explaining and managing eutrophication. Draws on a range of studies and experiments, some presented here for the first time.
This third volume on Dutch Silver does not need a lengthy introduction, since it is a continuation of the second volume, describing and reproducing the wrought plate of the other provinces of the Netherlands, i. e. Zeeland, Utrecht, North-Brabant, Limburg, Gelderland, Overijsel, Friesland and Groningen. The province of Drenthe, until recent years a district with a poor population, has never produced important pieces of silver, but only rather insig nificant "folk art" which need not be included in this book. The general observations contained in the introduction to Volume II apply also to this volume. Here we shall add only certain particular observations regarding the most important and cha...
This book deals with the issue of sustainable development in a novel and innovative way. It examines the governance implications of reflexive modernisation - the condition that societal development is endangered by its own side-effects. With conceptualising reflexive governance the book leads a way out of endless quarrels about the definition of sustainability and into a new mode of collective action.
Reproduction of the original: The Religion of Babylonia and Assyria by Morris Jastrow
Astronomy, perhaps the first of the sciences, was already well developed by the time of Christ. Seventeen centuries later, after Newton showed that the movements of the planets could be explained in terms of gravitation, it became the paradigm for the mathematical sciences. In the nineteenth century the analysis of star-light allowed astrophysicists to determine both the chemical composition and the radial velocities of celestial bodies, while the development of photography enabled distant objects invisible to the human eye, to be studied and measured in comfort. Technical developments during and since the Second World War have greatly enlarged the scope of the science by permitting the stud...