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Many texts attempt to bridge theory and research. They include one
or two pages dealing with important theorists--Jung, Adler, Freud,
et al.--inserted into chapters focused on academic studies. In most
cases, the discussion fails to do justice to the theorists and the
relationship between the ideas and the empirical work is often
tenuous at best.
Viscoelasticandtransportpropertiesofpolymersintheliquid(solution,melt)or liquid-like (rubber) state determine their processing and application to a large extent and are of basic physical interest [1-3]. An understanding of these dynamic properties at a molecular level, therefore, is of great importance. However,thisunderstandingiscomplicatedbythefactsthatdi?erentmotional processes may occur on di?erent length scales and that the dynamics are governed by universal chain properties as well as by the special chemical structure of the monomer units [4,5]. The earliest and simplest approach in this direction starts from Langevin equations with solutions comprising a spectrum of relaxation modes [1-4]. Special features are the incorporation of entropic forces (Rouse model, [6]) which relax uctuations of reduced entropy, and of hydrodynamic interactions (Zimm model, [7]) which couple segmental motions via long-range back ow elds in polymer solutions, and the inclusion of topological constraints or entanglements (reptation or tube model, [8-10]) which are mutually imposed within a dense ensemble of chains. Another approach, neglecting the details of the chemical structure and concentratingontheuniversalelementsofchainrelaxation,isbasedondynamic scalingconsiderations[4,11].Inparticularinpolymersolutions,thisapproach o?ers an elegant tool to specify the general trends of polymer dynamics, although it su?ers from the lack of a molecular interpretation. A real test of these theoretical approaches requires microscopic methods, which simultaneously give direct access to the space and time evolution of the segmental di?usion. Here, quasi-elastic scattering methods play a crucial role sincetheyallowthemeasurementofthecorrespondingcorrelationfunctions.In particular,thehigh-resolutionneutronspinecho(NSE)spectroscopy[12-15]is very suitable for such investigations since this method covers an appropriate range in time (0.005)t/ns)40) and space (r/nm [15). Furthermore, the possibilityoflabellingbyhydrogen-deuteriumexchangeallowstheobservation of single-chain behavior even in the melt.
This 7th Edition helps students unravel the mysteries of human behavior through its highly readable introduction to the ideas of the most significant personality theorists. Engaging biographical sketches begin each chapter, and unique capsule summaries help students review key concepts. Theories come alive through the inclusion of quotations from the theorists' writings and numerous applications such as dream interpretation, psychopathology, and psychotherapy. Significant changes in the 7th edition include an extended discussion of the practical applications of personality theory, with an emphasis on guidelines that can help people increase their self-knowledge, make better decisions, and live more fulfilling lives. Fictionalized but true-to-life examples illustrating the perils of inadequate self-knowledge include college students, parents, terrorists, business executives, and politicians, while other examples show the positive outcomes that can result from a better understanding of one's unconscious. This 7th edition also includes a more extensive discussion of how a lack of self-understanding caused difficulties for such noted theorists as Freud and Erikson, and a new section that explains how behavior can be strongly influenced by the situation as well as by one's personality. Finally, a new interactive web site provides practice test questions and other topics of interest.
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