Titlebook: COVID-19 Epidemiology and Virus Dynamics; Nonlinear Physics an Till D. Frank Book 2022 The Editor(s) (if applicable) and The Author(s), und

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Virus Dynamics in Humans: Unstable Directions and Order Parameters,state of an infected individual evolves in a certain way: it evolves along an unstable direction or order parameter that defines how the affected cells and the virus concentration change relative to each other over time. The corresponding unstable amplitude or order parameter amplitude describes the

包租车船

Book 2022 It aims to study COVID-19 epidemics in countries and SARS-CoV-2 infections in individuals from the nonlinear physics perspective and to model explicitly COVID-19 data observed in countries and virus load data observed in COVID-19 patients...The first part of this book provides a short technical int

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Nonlinear Physics of Epidemics: Part B,er parameters are determined. It is demonstrated that within the SEIR modeling framework, the SEI order parameter determines the initial stage of epidemics. An application to the COVID-19 outbreak in Wuhan, China, during the year 2020 is also presented.

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Virus Dynamics in Humans: Unstable Directions and Order Parameters, exponential increase or decay of all variables in the initial stage of the infection. These key characteristics of virus infections are worked out for the virus dynamics models introduced in the previous chapter. The characteristics are also demonstrated for SARS-CoV-2 infections observed in a sample of COVID-19 patients.

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Kaśka Porayska-Pomsta,Chris Mellishvation of amplitude equations is discussed that allow for the description of systems in amplitude spaces. The chapter introduces the order parameter concept of synergetics and discusses why unstable eigenvectors of fixed points are order parameters.