elsevier bv dez 2000 (11 Ergebnisse)

Buch. Zustand: Neu. Neuware - Advances in International Accounting is a referred, academic research annual, that is devoted to publishing articles about advancements in the development of accounting and its related disciplines from an international perspective. This serial examines how these developments affect the financial reporting and disclosure practices, taxation, management accounting practices, and auditing of multinational corporations, as well as their effect on the education of professional accountants worldwide. Advances in International Accounting welcomes traditional and alternative approaches, including theoretical research, empirical research, applied research, and cross-cultural studies.

Buch. Zustand: Neu. Neuware.

Buch. Zustand: Neu. Neuware.

Buch. Zustand: Neu. Neuware - The book first discusses in depth various aspects of the well-known inconsistency that arises when explanatory variables in a linear regression model are measured with error. Despite this inconsistency, the region where the true regression coeffecients lies can sometimes be characterized in a useful way, especially when bounds are known on the measurement error variance but also when such information is absent. Wage discrimination with imperfect productivity measurement is discussed as an important special case. Next, it is shown that the inconsistency is not accidental but fundamental. Due to an identification problem, no consistent estimators may exist at all. Additional information is desirable. This information can be of various types. One type is exact prior knowledge about functions of the parameters. This leads to the CALS estimator. Another major type is in the form of instrumental variables. Many aspects of this are discussed, including heteroskedasticity, combination of data from different sources, construction of instruments from the available data, and the LIML estimator, which is especially relevant when the instruments are weak. The scope is then widened to an embedding of the regression equation with measurement error in a multiple equations setting, leading to the exploratory factor analysis (EFA) model. This marks the step from measurement error to latent variables. Estimation of the EFA model leads to an eigenvalue problem. A variety of models is reviewed that involve eignevalue problems as their common characteristic. EFA is extended to confirmatory factor analysis (CFA) by including restrictions on the parameters of the factor analysis model, and next by relating the factors to background variables. These models are all structural equation models (SEMs), a very general and important class of models, with the LISREL model as its best-known representation, encompassing almost all linear equation systems with latent variables. Estimation of SEMs can be viewed as an application of the generalized method of moments (GMM). GMM in general and for SEM in particular is discussed at great length, including the generality of GMM, optimal weighting, conditional moments, continuous updating, simulation estimation, the link with the method of maximum likelihood, and in particular testing and model evaluation for GMM. The discussion concludes with nonlinear models. The emphasis is on polynomial models and models that are nonlinear due to a filter on the dependent variables, like discrete choice models or models with ordered categorical variables.

Buch. Zustand: Neu. Neuware - Geostatistics is a common tool in reservoir characterization. Written from the basics of statistics, this book covers only those topics that are needed for the two goals of the text: to exhibit the diagnostic potential of statistics and to introduce the important features of statistical modelling. This revised edition contains expanded discussions of some materials, in particular conditional probabilities, Bayes Theorem, correlation, and Kriging. The coverage of estimation, variability, and modelling applications have been updated. Seventy examples illustrate concepts and show the role of geology for providing important information for data analysis and model building. Four reservoir case studies conclude the presentation, illustrating the application and importance of the earlier material. This book aims to help petroleum professionals develop more accurate models, leading to lower sampling costs. It is an ideal book for petroleum engineers, geoscientists, hydrologists, and faculty and students in these and related fields.

Buch. Zustand: Neu. Neuware - Scientists planning experiments in medical and behavioral research will find this handbook and dictionary an invaluable desk reference tool. Also recommended as a textbook for students of Experimental Design or accompanying courses in Statistics. Principles of experimental design are introduced, techniques of experimental design are described, and advantages and disadvantages of often used designs are discussed.This two-part volume, a handbook of experimental design and a dictionary providing short explanations for many terms related to experimental design, contains information that will not quickly become outdated.

Buch. Zustand: Neu. Neuware - This volume of the Handbook is the first of a two-volume set of reviews devoted to the rare-earth-based high-temperature oxide superconductors (commonly known as hiTC superconductors). The history of hiTC superconductors is a few months short of being 14 years old when Bednorz and Müller published their results which showed that (La,BA)2CuO4 had a superconducting transition of ~30 K, which was about 7K higher than any other known superconducting material. Within a year the upper temperature limit was raised to nearly 100K with the discovery of an ~90K superconducting transition in YBa2Cu3O7-&dgr; The announcement of a superconductor with a transition temperature higher than the boiling point of liquid nitrogen set-off a frenzy of research on trying to find other oxide hiTC superconductors. Within a few months the maximum superconducting transition reached 110 K (Bi2Sr2Ca2Cu3010, and then 122K (TlBa2Ca3Cu4O11. It took several years to push TC up another 11 K to 133 K with the discovery of superconductivity in HgBa2Ca2Cu3O8, which is still the record holder today.

Buch. Zustand: Neu. Neuware - Electrochemical reactions make significant contributions to organic synthesis either in the laboratory or on an industrial scale. These methods have the potential for developing more 'green' chemical synthesis. Over recent years, modern investigations have clarified the mechanisms of important organic electrochemical reactions. Progress has also been made in controlling the reactivity of intermediates through either radical or ionic pathways. Now is the time to gather all the electrochemical work into a textbook.As an essential addition to the armory of synthetic organic chemists, electrochemical reactions give results not easily achieved by many other chemical routes. This book presents a logical development of reactions and mechanisms in organic electrochemistry at a level suited to research scientists and final year graduate students. It forms an excellent starting point from which synthetic organic chemists, in both academia and industry, can appreciate uses for electrochemical methods in their own work. The book is also a reference guide to the literature.

Taschenbuch. Zustand: Neu. Neuware - Infrastructure is currently one of the most significant markets for composite materials and is expected to become even more significant to the composites industry as the sector increases its acceptance of fibre and carbon reinforced plastics.

Buch. Zustand: Neu. Neuware - The third edition of this highly respected market study provides a detailed insight into the global developments of the GaAs industry to 2004, and the implications for both suppliers and users of GaAs technology.

Buch. Zustand: Neu. Neuware - The book starts with a detailed description of ICP-MS, including quadruple-based, sector-based and time-of-flight instruments. Instrumentation from existing manufacturers is described and compared to show their similarities and differences. Also, a review of the ICP-MS literature is carried out to outline both the strengths and limitations of the technique, whatever its brand, as well as what it can currently accomplish in terms of applications. Then, the book demonstrates how these limitations can be reduced and/or eliminated by combining various techniques with ICP-MS. Great detail is provided on each technique so that the reader can get a good understanding of it before carrying on to the instrumental requirements for its hyphenation to ICP-MS, and the resulting impact on the operation of the hyphenated instrument. Since this book is concerned with the ICP side only, which is fairly similar in all the instruments from the different manufacturers, the information should be useful to all ICP-MS users. The features and limitations of each technique are thoroughly discussed and illustrated with a review of the ICP-MS literature. Approaches which could be used but have not yet been tried with ICP-MS are also suggested. This is particularly true of flow injection techniques which are extremely flexible and have been used extensively in atomic spectroscopy and spectrophotometry. Many of the features of the technique have not yet been combined to ICP-MS, and one purpose of the book will be to point out potentially beneficial combinations.