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Phosphorus is essential to all life. A critical component of fertilizers, Phosphorus currently has no known substitute in agriculture. Without it, crops cannot grow. With too much of it, waterways are polluted. Across the globe, social, political, and economic pressures are influencing the biogeochemical cycle of phosphorus. A better understanding of this non-renewable resource and its impacts on the environment is critical to conserving our global supply and increasing agricultural productivity. Most of the phosphorus-focused discussion within the academic community is highly fragmented. Phosphorus, Food, and Our Future will bring together the necessary multi-disciplinary perspectives to build a cohesive knowledge base of phosphorus sustainability. The book is a direct continuation of processes associated with the first international conference on sustainable phosphorus held in the United States, the Frontiers in Life Sciences: Sustainable Phosphorus Summit, though it is not a book of conference proceedings; rather, the book is part of an integrated, coordinated process that builds on the momentum of the Summit. The first chapter will introduce the biological and chemical necessity of phosphorus. The subsequent ten chapters will explore different facets of phosphorus sustainability and the role of policy on future global phosphorus supplies. The final chapter will synthesize all of the emerging views contained in the book, drawing out the leading dilemmas and opportunities for phosphorus sustainability.

Dieser Buchtitel ist Teil des Digitalisierungsprojekts Springer Book Archives mit Publikationen, die seit den Anfängen des Verlags von 1842 erschienen sind. Der Verlag stellt mit diesem Archiv Quellen für die historische wie auch die disziplingeschichtliche Forschung zur Verfügung, die jeweils im historischen Kontext betrachtet werden müssen. Dieser Titel erschien in der Zeit vor 1945 und wird daher in seiner zeittypischen politisch-ideologischen Ausrichtung vom Verlag nicht beworben.

This volume of the Handbook on the Physics and Chemistry of Rare Earth begins with a Dedication to late Professor LeRoy Eyring who had been a committed co-editor of the first 32 volumes of this series. This is followed by four chapters, the first two pertaining to solid state physics and materials science, while the last two chapters describe organic (and inorganic) reactions mediated by tetravalent cerium-based oxidants and by divalent samarium-based reductants. Chapter 227 is devoted to the description of the crystal chemistry and physical properties of rare-earth bismuthides, a class of compounds showing large similarities with the rare-earth antimonides previously reviewed in volume 33 of this series. The fascinating optical and electric properties of rare-earth hydride films displaying a switchable mirror effect as a function of hydrogen pressure, i.e. from a shiny metallic state to a transparent insulating film with increasing pressure, are described in Chapter 228, along with their fabrication methods. Many chemical reactions take advantage of the tetravalent/trivalent Ce(IV)/Ce(III) redox couple and many of its potential applications are presented in Chapter 229, from analytical procedures, to electrosynthesis, and organic and industrial (polymerization) reactions. The last review (Chapter 230) focuses on the synthesis and use of divalent samarium-based reductants in organic and inorganic reactions, mainly on those containing iodide and pentamethylcyclopentadienyl ligands.·Authoritative·Comprehensive·Up-to-date·Critical·Reliable

This volume of the Handbook illustrates the rich variety of topics covered by rare earth science. Three chapters are devoted to the description of solid state compounds: skutterudites (Chapter 211), rare earth -antimony systems (Chapter 212), and rare earth-manganese perovskites (Chapter 214). Two other reviews deal with solid state properties: one contribution includes information on existing thermodynamic data of lanthanide trihalides (Chapter 213) while the other one describes optical properties of rare earth compounds under pressure (Chapter 217). Finally, two chapters focus on solution chemistry. The state of the art in unraveling solution structure of lanthanide-containing coordination compounds by paramagnetic nuclear magnetic resonance is outlined in Chapter 215. The potential of time-resolved, laser-induced emission spectroscopy for the analysis of lanthanide and actinide solutions is presented and critically discussed in Chapter 216.

The chemistry of flavours and fragrances is of great interest to academics and industrialists alike. Bringing together international contributors, this book presents the most recent research in this key area. Diverse topics such as structure-activity relationships; analytical techniques; natural products and essential oils; and organic and bioorganic chemistry are discussed, along with flavours and foods. Advances in Flavours and Fragrances: From the Sensation to the Synthesis will be a welcome addition to the bookshelves of all practitioners with a common interest in this fascinating area.