Andreas Liehr's Books

Dissipative Solitons in Reaction Diffusion Systems

Mechanisms, Dynamics, Interaction

By: Andreas Liehr

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Dissipative Solitons in Reaction Diffusion Systems

Mechanisms, Dynamics, Interaction

By: Andreas Liehr

Why writing a book about a specialized task of the large topic of complex systems? And who will read it? The answer is simple: The fascination for a didactically valuable point of view, the elegance of a closed concept and the lack of a comprehensive disquisition. The fascinating part is that field equations can have localized solutions exhibiting the typical characteristics of particles. Regarding the field equations this book focuses on, the field phenomenon of localized solutions can be described in the context of a particle formalism, which leads to a set of ordinary differential equations covering the time evolution of the position and the velocity of each particle. Moreover, starting from these particle dynamics and making the transition to many body systems, one considers typical phenomena of many body systems as shock waves and phase transitions, which themselves can be described as field phenomena. Such transitions between different level of modelling are well known from conservative systems, where localized solutions of quantum field theory lead to the mechanisms of elementary particle interaction and from this to field equations describing the properties of matter. However, in dissipative systems such transitions have not been considered yet, which is adjusted by the presented book. The elegance of a closed concept starts with the observation of self-organized current filaments in a semiconductor gas discharge system. These filaments move on random paths and exhibit certain particle features like scattering or the formation of bound states. Neither the reasons for the propagation of the filaments nor the laws of the interaction between the filaments can be registered by direct observations. Therefore a model is established, which is phenomenological in the first instance due to the complexity of the experimental system. This model allows to understand the existence of localized structures, their mechanisms of movement, and their interaction, at least, on a qualitative level. But this model is also the starting point for developing a data analysis method that enables the detection of movement and interaction mechanisms of the investigated localized solutions. The topic is rounded of by applying the data analysis to real experimental data and comparing the experimental observations to the predictions of the model. A comprehensive publication covering the interesting topic of localized solutions in reaction diffusion systems in its width and its relation to the well known phenomena of spirals and patterns does not yet exist, and this is the third reason for writing this book. Although the book focuses on a specific experimental system the model equations are as simple as possible so that the discussed methods should be adaptable to a large class of systems showing particle-like structures. Therefore, this book should attract not only the experienced scientist, who is interested in self-organization phenomena, but also the student, who would like to understand the investigation of a complex system on the basis of a continuous description.

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Page Count

227

Publisher

Springer Science & Business Media

Published Date

ISBN 10

3642312519

ISBN 13

9783642312519

A Contingency-Based View of Chief Executive Officers' Early Warning Behaviour

An Empirical Analysis of German Medium-Sized Companies

By: Andreas Kirschkamp

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A Contingency-Based View of Chief Executive Officers' Early Warning Behaviour

An Empirical Analysis of German Medium-Sized Companies

By: Andreas Kirschkamp

Andreas Kirschkamp empirically analyses the early warning behavior of Chief Executive Officers in German medium-sized companies. First, he presents the design variables of early warning, then the influencing contingency variables. On the basis of the scholarly research on psychological and contingency theory, the author deduces hypotheses and tests them.

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Page Count

293

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Springer Science & Business Media

Published Date

ISBN 10

3835055046

ISBN 13

9783835055049

Terpyridine-based Materials

For Catalytic, Optoelectronic and Life Science Applications

By: Ulrich S. Schubert,Andreas Winter,George R. Newkome

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Terpyridine-based Materials

For Catalytic, Optoelectronic and Life Science Applications

By: Ulrich S. Schubert,Andreas Winter,George R. Newkome

In recent years, the utilization of terpyridines both in macromolecular structure assembly and device chemistry has exploded, enabling, for example, supramolecular polymer architectures with switchable chemical and physical properties as well as novel functional materials for optoelectronic applications such as light-emitting diodes and solar cells. Further applications include the usage of terpyridines and their metal complexes as catalysts for asymmetric organic reactions and, in a biological context, as anti-tumor agents or biolabels. This book covers terpyridine-based materials topics ranging from syntheses, chemistry, and multinuclear metal complexes, right up to functionalized polymers, 3D-architectures, and surfaces. Aimed at materials scientists, (in)organic chemists, polymer chemists, complex chemists, physical chemists, biochemists, and libraries.

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562

Publisher

John Wiley & Sons

Published Date

ISBN 10

3527639632

ISBN 13

9783527639632

Trauma, Trust, and Memory

Social Trauma and Reconciliation in Psychoanalysis, Psychotherapy, and Cultural Memory

By: Andreas Hamburger

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Trauma, Trust, and Memory

Social Trauma and Reconciliation in Psychoanalysis, Psychotherapy, and Cultural Memory

By: Andreas Hamburger

Trauma is one of the most important topics discussed throughout the clinical, social and cultural field. Social traumatization, as we meet it in the aftermath of genocide, war and persecution, is targeted at whole groups and thus affects the individual's immediate holding environment, cutting it off from an important resilience factor; further on, social trauma is implemented in a societal context, thus involving the surrounding society in the traumatic process. Both conditions entail major consequences for the impact and prognosis of the resulting individual posttraumatic disorders as well as for the social and cultural consequences. The volume connects clinical and epidemiological studies on the sequelae of social trauma to reflections from social psychology and the humanities. Post-war and post-dictatorial societies are in particular marked by the effects of massive, large group traumatization, and if these are not acknowledged, explored, and mourned, the unprocessed cumulative trauma that has become deeply embedded in the collective memory leads to periodical reactivations. To address social trauma, an interdisciplinary approach is required.

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Page Count

512

Publisher

Routledge

Published Date

ISBN 10

1000157415

ISBN 13

9781000157413

Nationalist Exclusion and Ethnic Conflict

Shadows of Modernity

By: Andreas Wimmer

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Nationalist Exclusion and Ethnic Conflict

Shadows of Modernity

By: Andreas Wimmer

Andreas Wimmer argues that nationalist and ethnic politics have shaped modern societies to a far greater extent than has been acknowledged by social scientists. The modern state governs in the name of a people defined in ethnic and national terms. Democratic participation, equality before the law and protection from arbitrary violence were offered only to the ethnic group in a privileged relationship with the emerging nation-state. Depending on circumstances, the dynamics of exclusion took on different forms. Where nation building was successful , immigrants and ethnic minorities are excluded from full participation; they risk being targets of xenophobia and racism. In weaker states, political closure proceeded along ethnic, rather than national lines and leads to corresponding forms of conflict and violence. In chapters on Mexico, Iraq and Switzerland, Wimmer provides extended case studies that support and contextualise this argument.

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334

Publisher

Cambridge University Press

Published Date

ISBN 10

052101185X

ISBN 13

9780521011853

Electronic Feedback in Large University Statistics Courses

The Longitudinal Effects of Quizzes on Motivation, Emotion, and Cognition

By: Andreas Maur

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Electronic Feedback in Large University Statistics Courses

The Longitudinal Effects of Quizzes on Motivation, Emotion, and Cognition

By: Andreas Maur

Digital tools and pedagogies in public higher education are unfolding their potential by providing large groups of students with automated, continuous learning and feedback opportunities. However, most of the existing studies are cross-sectional, unidirectional and focus on a limited selection of relevant target variables and instructional features. In a field study, Andreas Maur used longitudinal latent structural equation modelling with a large sample of students to analyse the interrelations between formative feedback from electronic quizzes and different facets of the control value theory of achievement emotions. The results suggest that regular quizzes most consistently improve self-efficacy, anxiety, effort, course enjoyment, and hopelessness over time. Only feedback effects related to intrinsic motivation were consistently less effective for female and less proficient students, and for students in traditional versus flipped classrooms. These findings highlight the need to scale up formative feedback in higher education and to cultivate feedback systems with higher levels of sophistication, adaptability, and gamification mechanics.

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Page Count

424

Publisher

Springer Nature

Published Date

ISBN 10

3658416203

ISBN 13

9783658416201

Dissipative Solitons in Reaction Diffusion Systems

Mechanisms, Dynamics, Interaction

By: Andreas Liehr

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Dissipative Solitons in Reaction Diffusion Systems

Mechanisms, Dynamics, Interaction

By: Andreas Liehr

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N/A

Write a review

Solve jigsaw puzzle

Age

Page Count

227

Publisher

Springer Science & Business Media

Published Date

ISBN 10

3642312519

ISBN 13

9783642312519

Book's by Andreas Liehr

Dissipative Solitons in Reaction Diffusion Systems

Dissipative Solitons in Reaction Diffusion Systems

A Contingency-Based View of Chief Executive Officers' Early Warning Behaviour

A Contingency-Based View of Chief Executive Officers' Early Warning Behaviour

Terpyridine-based Materials

Terpyridine-based Materials

Trauma, Trust, and Memory

Trauma, Trust, and Memory

Nationalist Exclusion and Ethnic Conflict

Nationalist Exclusion and Ethnic Conflict

Electronic Feedback in Large University Statistics Courses

Electronic Feedback in Large University Statistics Courses

Dissipative Solitons in Reaction Diffusion Systems

Dissipative Solitons in Reaction Diffusion Systems

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