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"Sleep is one of the most important but least understood aspects of our life, wellness, and longevity ... An explosion of scientific discoveries in the last twenty years has shed new light on this fundamental aspect of our lives. Now ... neuroscientist and sleep expert Matthew Walker gives us a new understanding of the vital importance of sleep and dreaming"--Amazon.com.
First published by the Warburg Institute in 1958, this book is considered a landmark in Renaissance studies. Whereas most scholars had tended to view magic as a marginal subject, Walker showed that magic was one of the most typical creations of the late fifteenth and sixteenth centuries. Walker takes readers through the magical concerns of some of the greatest thinkers of the Renaissance, from Marsilio Ficino, Giovanni Pico della Mirandola, and Jacques Lefevre d&’Etaples to Jean Bodin, Francis Bacon, and Tommaso Campanella. Ultimately he demonstrates that magic was interconnected with religion, music, and medicine, all of which were central to the Renaissance notion of spiritus. Remarkable for its clarity of writing, this book is still considered essential reading for students seeking to understand the assumptions, beliefs, and convictions that informed the thinking of the Renaissance. This edition features a new introduction by Brian Copenhaver, one of our leading experts on the place of magic in intellectual history.
The Porphyrin Handbook, Volume 12: The Iron and Cobalt Pigments: Biosynthesis, Structure, and Degradation provides information pertinent to every aspect of the chemistry, synthesis, spectroscopy, and structure of phthalocyanines. This book presents the biochemical and clinical aspects of genetically transmitted or drug-induced diseases associated with errors in heme metabolism. Organized into eight chapters, this volume begins with an overview of the comparison of regulatory principles in animal and plant tetrapyrrole biosynthesis. This text then examines the biology and medical implications of porphyrin systems. Other chapters consider the transformation of hemes into bile pigments, the organic synthesis of bilins, and the pathways of degradation of chlorophyll in senescent plants. This book discusses as well the biosynthesis of porphyrins, vitamin B12, and chlorophylls. The final chapter deals with genome sequencing projects that provide sources of genes encoding the enzymes needed for the synthesis of the intermediates. This book is a valuable resource for research scientists, engineers, and clinicians.
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This book is about phylogenetic diversity as an approach to reduce biodiversity losses in this period of mass extinction. Chapters in the first section deal with questions such as the way we value phylogenetic diversity among other criteria for biodiversity conservation; the choice of measures; the loss of phylogenetic diversity with extinction; the importance of organisms that are deeply branched in the tree of life, and the role of relict species. The second section is composed by contributions exploring methodological aspects, such as how to deal with abundance, sampling effort, or conflicting trees in analysis of phylogenetic diversity. The last section is devoted to applications, showing how phylogenetic diversity can be integrated in systematic conservation planning, in EDGE and HEDGE evaluations. This wide coverage makes the book a reference for academics, policy makers and stakeholders dealing with biodiversity conservation.