Covering definitions, concepts, and applications, Countercurrent Chromatography recounts the developments in two types of liquid-liquid chromatography termed countercurrent-high-speed countercurrent chromatography (HSCCC) and centrifugal partition chromatography (CPC)-as well as the HSCCC-derived cross-axis CCC, a versatile technique for purification in biotechnology applications. The text investigates mechanisms for mixing liquid phases, particularly hydrostatic techniques for CPC and hydrodynamic for coil planet centrifuges. It also explores the use of countercurrent chromatography in inorganic analysis, chiral separation, and the separation of natural products.
This volume covers both basic and advanced aspects of organometallic chemistry of all metals and catalysis. In order to present a comprehensive view of the subject, it provides broad coverage of organometallic chemistry itself. The catalysis section includes the challenging activation and fictionalization of the main classes of hydrocarbons and the industrially crucial heterogeneous catalysis. Summaries and exercises are provides at the end of each chapter, and the answers to these exercises can be found at the back of the book. Beginners in inorganic, organic and organometallic chemistry, as well as advanced scholars and chemists from academia and industry will find much value in this title.
It is a simple story. A 37-year-old man belonging to the Traveller community is shot dead by a special unit of the French police on the family farm where he was hiding since he failed to return to prison after temporary release. The officers claim self-defense. The relatives, present at the scene, contest that claim. A case is opened, and it concludes with a dismissal that is upheld on appeal. Dismayed by these decisions, the family continues the struggle for truth and justice. Giving each account of the event the same credit, Didier Fassin conducts a counter-investigation, based on the re-examination of all the available details and on the interviews of its protagonists. A critical reflection on the work of police forces, the functioning of the justice system, and the conditions that make such tragedies possible and seldom punished, Death of a Traveller is also an attempt to restore to these marginalized communities what they are usually denied: respectability.
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