Elsevier bv dez 1991 (4 risultati)

Taschenbuch. Condizione: Neu. Neuware - Free radical species are generally short-lived due to their high reactivity and thus direct measurement and identification are often impossible. ESR is the only technique which has the potential for direct detection of radicals but in biological systems even these must be trapped by a spin-trapping agent. Thus most investigations involve recognition of indicators of the presence of radicals in vivo or 'FOOTPRINTS' of radical-mediated damage. Techniques in Free Radical Research assembles and critically assesses the most relevant and reliable experimental approaches used towards the measurement of radicals and radical-mediated damage in chemical systems, in cells and in tissues under the following six headings: a) Footprints of DNA damage, b) Footprints of protein damage, c) Footprints of lipid peroxidation, d) Footprints of antioxidant consumption, e) Footprints via indirect radical assays, and f) Footprints via the availability of transition metal complexes.…

Buch. Condizione: Neu. Neuware - During the past two decades, there has been a dramatic increasein interest in the study of motor control and learning. In thisvolume authors from a variety of backgrounds and theoreticalperspectives review their research with particular emphasis onthe methods and paradigms employed, and the future direction oftheir work. The book is divided into four main sections. Thefirst section contains chapters examining general issues andtrends in the movement behaviour field. The remaining threesections contain chapters from scientists working in threebroadly defined areas of interest: coordination and control;visuo-motor processes; and movement disorders. Each sectionprovides an overview of the different approaches and differentlevels of analysis being used to examine specific topics withinthe motor domain.…

Buch. Condizione: Neu. Neuware - Chemiluminescence immunoassay is now established as one of the best alternatives to conventional radioimmunoassay for the quantitation of low concentrations of analytes in complex samples. During the last two decades the technology has evolved into analytical procedures whose performance far exceeds that of immunoassays based on the use of radioactive labels. Without the constraints of radioactivity, the scope of this type of analytical procedure has widened beyond the confines of the specialist clinical chemistry laboratory to other disciplines such as microbiology, veterinary medicine, agriculture, food and environmental testing. This is the first work to present the topic as a subject in its own right. In order to provide a complete picture of the subject, overviews are presented of the individual areas of chemiluminescence and immunoassay with particular emphasis on the requirements for interfacing chemiluminescent and immunochemical reactions. The possible ways of configuring chemiluminescence immunoassays are described. State-of-the-art chemiluminescence immunoassay systems are covered in detail together with those systems which are commercially available. The book is aimed at researchers and routine laboratory staff in the life sciences who wish to make use of this high-performance analytical technique and also at those interested in industrial applications of the technology in the food, agricultural and environmental sciences.…

Buch. Condizione: Neu. Neuware - The Concise Encyclopedia of Modelling & Simulation contains 172 alphabetically arranged articles describing the modelling and simulation of physical systems. The emphasis is on mathematical models and their various forms, although other types of models, such as knowledge-based, linguistics-based, graphical and data-based, are also discussed. The articles are revised from the Systems & Control Encyclopedia, and many newly commissioned articles are included describing recent developments in the field. Articles on identification cover all aspects of this problem, from the use and choice of specific test signals to problems of model order and the many algorithms and approaches to parameter estimation. Computational techniques, such as the finite-element method, that play an important role in analyzing nonlinear models are covered. Articles outline the development of simulation, consider currently available simulation languages, describe applications and cover current developments in the area. Where appropriate, illustrations and tables are included to clarify particular topics. This encyclopedia will be a valuable reference source for all practising engineers, researchers and postgraduate students in the field of modelling and simulation.…