This book is an introduction to the dynamics of reaction-diffusion systems, with a focus on fronts and stationary spatial patterns. Emphasis is on systems that are non-standard in the sense that either the transport is not simply classical diffusion (Brownian motion) or the system is not homogeneous. A important feature is the derivation of the basic phenomenological equations from the mesoscopic system properties. Topics addressed include transport with inertia, described by persistent random walks and hyperbolic reaction-transport equations and transport by anomalous diffusion, in particular subdiffusion, where the mean square displacement grows sublinearly with time. In particular reaction-diffusion systems are studied where the medium is in turn either spatially inhomogeneous, compositionally heterogeneous or spatially discrete. Applications span a vast range of interdisciplinary fields and the systems considered can be as different as human or animal groups migrating under external influences, population ecology and evolution, complex chemical reactions, or networks of biological cells. Several chapters treat these applications in detail.
This book is an introduction to the dynamics of reaction-diffusion systems, with a focus on fronts and stationary spatial patterns. Emphasis is on systems that are non-standard in the sense that either the transport is not simply classical diffusion (Brownian motion) or the system is not homogeneous. A important feature is the derivation of the basic phenomenological equations from the mesoscopic system properties. Topics addressed include transport with inertia, described by persistent random walks and hyperbolic reaction-transport equations and transport by anomalous diffusion, in particular subdiffusion, where the mean square displacement grows sublinearly with time. In particular reaction-diffusion systems are studied where the medium is in turn either spatially inhomogeneous, compositionally heterogeneous or spatially discrete. Applications span a vast range of interdisciplinary fields and the systems considered can be as different as human or animal groups migrating under external influences, population ecology and evolution, complex chemical reactions, or networks of biological cells. Several chapters treat these applications in detail.
Two veteran intelligence agents, one from the CIA and the other from the KGB, join together in an unprecedented collaboration to trace the activities of the two intelligence agencies at the start of the Cold War in postwar Berlin. UP.
Since his canonization in 1970, St. Herman has been remembered for his just treatment of native peoples and his respect of the environment. Explaining how it came to be that this simple Russian Orthodox monk eventually settled in Kodiak, Alaska, this account brings to light many primary sources that illuminate the story of St. Herman and the wider context of the little-known history of Russian colonization in the Pacific Northwest. Providing a considerable amount of new information about his life, this book also reveals his fascinating connection to St. Seraphim of Sarov, the most universally recognized saint of the Russian Orthodox Church today.
A profile of the authors life as a famous Soviet puppeteer and puppet theatre director. He describes childhood impressions, writes of earlier professions as artist and actor, and finally about his personal experiences with puppetry which helped him achieve mastery of his craft.Born in Moscow in 1901, he describes every step he took to his profession, how he worked on individual productions, and an account of all of his productions. In the 1920s Sergei Obraztsov founded the State Central Puppet Theatre in Moscow --- the biggest in Russia, an educational center of professional and amateurs theatre groups. The center houses the museum of theatrical puppets, a library on the theme, manuscript and pedagogical departments, and one of the worlds largest collection of theatrical puppets (about 3000 from 50 countries). Now over 50 years old, The Sergei Obraztsov Central Puppet Show has entertained tens-of-thousands of fans in 50 different countries, with a witty program that parodies slipshod variety performances.
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