Rolf Wittig worked for four different railways in his life, as a stoker, subway driver, window cleaner and IC engineer. He recounts events from his railway experience.
Compounds labeled with carbon-14 and tritium are indispensable tools for research in biomedical sciences, discovery and development of pharmaceuticals and agrochemicals. Preparation of Compounds Labeled with Tritium and Carbon-14 is a comprehensive, authoritative and up-to-date discussion of the strategies, synthetic approaches, reactions techniques, and resources for the preparation of compounds labeled with either of these isotopes. A large number of examples are presented for the use of isotopic sources and building blocks in the preparation of labeled target compounds, illustrating the range of possibilities for embedding isotopic labels in selected moieties of complex structures. Topics include: Formulation of synthetic strategies for preparing labeled compounds Isotope exchange methods and synthetic alternatives for preparing tritiated compounds In-depth discussion of carbon-14 building blocks and their utility in synthesis Preparation of enantiomerically pure isotopically labeled compounds Applications of biotransformations Preparation of Compounds Labeled with Tritium and Carbon-14 is an essential guide to the specialist strategies and tactics used by chemists to prepare compounds tagged with theradioactive atoms carbon-14 and tritium.
The present volume finalizes the coverage of organocopper compounds. A complete formula and ligand index for the Gmelin organocopper series will appear shortly as" Organa copper Compounds" 5. The volume describes mononuclear compounds with ligands bonded by two or more carbon atoms as well as all di- to octanuclear and polymeric compounds. Mononuclear compounds with ligands bonded by one carbon atom have already been described in Vol umes 1 (published in 1985), 2 (published in 1983), and 3 (published in 1986). As structural elucidation in organocopper chemistry gained more attention only in the last few years, the terms "mononuclear", "dinuclear" etc. have been used as explained in "Organocopper Compounds" 1, 1985, pp. 3/4: all compounds are treated with their small est formula unit unless a higher nuclearity has been proved. As a consequence, most of the species treated in volumes 1 to 3 are described there because of insufficient structural information although they are alleged not to be monomeric. This way, many of the better characterized compounds appear in the present volume which is reflected by the more than eighty X-ray structure figures. Generally, nuclearity and structure are not only deter mined by the coordination properties of the ligands, but also by steric requirements, and may therefore widely differ for analogous compounds. For abbreviations and dimensions used throughout this volume, see p. X. Frankfurt am Main, July 1987 Johannes Fussel Remarks on Abbreviations and Dimensions Most compounds and reagents in this volume are presented in tables.
Between 1980 and 1996 the number of arrests has increased considerably for offenders ages 12 and under. This increase is a cost to society in two ways: the cost of the crime and the cost of multiple agencies involved with these children. Several questions have developed due to this increase: How does the juvenile justice system deal with child delinquents? Is child delinquency a predictor of serious, violent, and chronic offending? How early can we predict, and what are early warning signs? In an effort to develop answers for these questions and many more, editors Rolf Loeber and David Farrington organized a study group on Very Young offenders comprising 39 experts on juvenile delinquency and child problem behavior. Over a two-year period of intense and collaborative work these individuals have produced the book Child Delinquents: Development, Intervention, and Service Needs. Presenting empirically derived insights, Child Delinquents is the definitive statement to date on the working knowledge of prevalence, development, risk and protective factors, and optimal intervention with preteen offenders. This book is an excellent source for a broad audience of researchers, scholars, psychiatry, and practitioners at the administrative level.
Revised, and updated Design and Optimization in Organic Synthesis presents strategies to explore experimental conditions and methodologies for systematic studies of entire reaction systems (substrates, reagent(s), catalyst(s), and solvents). Chemical phenomena are not usually the result of a single factor and this book describes how statistically designed methods can be used to analyse and evaluate synthetic procedures. The methodology is based on multivariate statistical techniques. The accompanying CD contains data tables and programmes. This book is essential reading for anyone working in process design and development in fine chemicals or the pharmaceutical industry, and is suitable for those with no experience in the field.* Contains recalculated models and redrawn figures, as well as new chapters on for example, the design of combinatorial libraries * Presents strategies to explore experimental conditions and methodologies* Enables the analysis and prediction of the best synthetic procedures
Director F.W. Murnau's Nosferatu: A Symphony of Horror, made in 1921, right after the devastating Spanish Flu pandemic, has become the ultimate cult classic among horror film buffs around the world. For years there was much speculation about the production background, the filmmakers, and their star, the German actor Max Schreck. This book tells the complete story drawing on rare sources. This book tells the complete story, drawing on rare sources. The trail leads to a group of occultists with a plan to establish a leading film company that would produce a momentous series of horror movies. Along the way, the author touches upon other classic German fantasy silents, such as The Golem, The Cabinet of Dr. Caligari and Metropolis.
The authors provide an excellent overview of conjugation effects in organic chemistry within and between Pi systems. Besides various aspects of aromaticity one finds detailed discussions of homo-, spiroand hyperconjugation as well as effects of through-space and throughbond interactions. These effects are presented on the basis of experimental results and are analyzed by the use of qualitative arguments of perturbation theory and from a comparison with results from high level ab initio calculations. This book is a must-have for bachelor students from the second year on, master and PhD students of chemistry. Also students in science such as physics, biology and medicine will benefit from the concepts described in the book. Furthermore, chemists in research and development will be grateful to find here an overview of conjugation effects allowing to understand the structures, the dynamics and the reactivity of molecules.
A book for people who are fascinated by rails, train stations and locomotives. With many pictures and stories from four railways, from subways and S-Bahn trains, freight and express trains, but especially from the old steam locomotives. From the sweaty profession of locomotive heater, and from the heights and lows of the modern electric locomotive driver, which he practiced for many years in Hamburg and Munich.
Rolf Wittig worked for four different railways in his life, as a stoker, subway driver, window cleaner and IC engineer. He recounts events from his railway experience.
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