Constructivism and the deployment of information technology into higher education classrooms are each widely discussed in academic literature, but generally without a critical perspective on their interaction from a pedagogical point of view as new technology is continuously unveiled. Information Technology and Constructivism in Higher Education: Progressive Learning Frameworks explores the theoretical frameworks underlying constructivist thinking and the digital revolution in education as they impact each other. Drawing upon a wide range of international field experts, this book assesses the claims made for the educational effectiveness and constructivist orientation of various technologies and technological systems on the basis of on-the-ground applications and implementations.

This text brings together a number of research studies, all of which examine the behaviour of foreign exchange rates. The main focus of the collection is on empirical characterization of high-frequency exchange rate data. The pioneering studies demonstrate and explain, amongst other things, the regular patterns in intra-day foreign exchange rate activity, the effects of macroeconomic news of rates and analyze the profitability of technical trading rules in these markets. The collection should be of use to students, academics and practitioners who are interested in exchange rate dynamics.

An examination of the symbiotic and productive relationship between fully nonlinear partial differential equations and generalized potential theories In recent years, there has evolved a symbiotic and productive relationship between fully nonlinear partial differential equations and generalized potential theories. This book examines important aspects of this story. One main purpose is to prove comparison principles for nonlinear potential theories in Euclidian spaces straightforwardly from duality and monotonicity under the weakest possible notion of ellipticity. The book also shows how to deduce comparison principles for nonlinear differential operators, by marrying these two points of view, under the correspondence principle. The authors explain that comparison principles are fundamental in both contexts, since they imply uniqueness for the Dirichlet problem. When combined with appropriate boundary geometries, yielding suitable barrier functions, they also give existence by Perron’s method. There are many opportunities for cross-fertilization and synergy. In potential theory, one is given a constraint set of 2-jets that determines its subharmonic functions. The constraint set also determines a family of compatible differential operators. Because there are many such operators, potential theory strengthens and simplifies the operator theory. Conversely, the set of operators associated with the constraint can influence the potential theory.

This book covers research completed between 1981 and May 1985 and includes: reviews of recent studies, sitings and investigations at spills-of-opportunity as well as results of recent arctic and sub-Arctic oil weathering experiments and observations on the behavior of crude oil in the presence of ice. Topics covered include the following: laboratory studies of formation and stability of water-in-oil emulsions; selected case histories of the more detailed chemistry studies of mousse behavior and long term fate in near-coastal and open ocean oil spills/blowouts; tar ball formation and distribution; and algorithms and computer programs to simulate the formation of water-in-oil emulsion.

This book constitutes the refereed proceedings of the 10th International Workshop on Cooperative Information Agents, CIA 2006, held in Edinburgh, UK in September 2006. The 29 revised full papers presented together with four invited papers were carefully reviewed and selected from 58 submissions. The papers are organized in topical sections.

An examination of the symbiotic and productive relationship between fully nonlinear partial differential equations and generalized potential theories In recent years, there has evolved a symbiotic and productive relationship between fully nonlinear partial differential equations and generalized potential theories. This book examines important aspects of this story. One main purpose is to prove comparison principles for nonlinear potential theories in Euclidian spaces straightforwardly from duality and monotonicity under the weakest possible notion of ellipticity. The book also shows how to deduce comparison principles for nonlinear differential operators, by marrying these two points of view, under the correspondence principle. The authors explain that comparison principles are fundamental in both contexts, since they imply uniqueness for the Dirichlet problem. When combined with appropriate boundary geometries, yielding suitable barrier functions, they also give existence by Perron’s method. There are many opportunities for cross-fertilization and synergy. In potential theory, one is given a constraint set of 2-jets that determines its subharmonic functions. The constraint set also determines a family of compatible differential operators. Because there are many such operators, potential theory strengthens and simplifies the operator theory. Conversely, the set of operators associated with the constraint can influence the potential theory.