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Plants produce chemicals as part of their normal metabolic activities. These include primary metabolites found in all plants, such as sugars and fats, as well as secondary metabolites, which can have therapeutic effects in humans and be refined to produce drugs. Plants synthesize a bewildering variety of phytochemicals, but most are derivatives of a few biochemical motifs. Numerous herbal-derived substances have been evaluated for their therapeutic potential. These include alkaloids, coumarins, saponins, plant pigments and flavonoids. Flavonoids, carotenoids and anthocyanins are probably the best known of these substances due to their antioxidant properties. Carotenoids: Structure and Functi...
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In addressing the urgent questions raised by climate change, this book provides a comprehensive overview of the anthropology of climate change guided by a critical political ecological framework. It argues that anthropologists must significantly expand their focus on climate change and their contributions to responding to climate change as a grave risk to humanity. The book presents a human socioecological framework for conceptualizing climate change. It examines the emergence and slow maturation of the anthropology of climate change; reviews the historic foundations for this work in the archaeology of climate change; and presents three alternative contemporary theoretical perspectives in th...
This is Jurgen Moltmann's best and therefore most important book. He has substantially changed the central thrust of his theology without sacrificing its most vital element, its passionate concern for alleviation of the world's suffering. -Langdon Gilkey The Crucified God rewards, as it demands, the reader's patient and open-minded attention, for its theme is nothing other than the explosive presence of the sighting and liberating Spirit of God in the midst of human life. -The Review of Books and Religion
Using figures, cartoons, and whimsical sidebars, Steve Goreham describes our crazy world, which is far down the primrose path of global warming fantasy. Contrary to popular consensus, global warming is natural and cars are innocent. But this book is not short on science. Goreham uses charts, graphs, and references to dozens of scientific papers to support his arguments. He shows that icecap melting, stronger storms, polar bear extinction, and many other climate fears are unfounded.