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  • 1
    Publication Date: 2022-05-25
    Description: Author Posting. © The Authors, 2006. This article is posted here by permission of American Physical Society for personal use, not for redistribution. The definitive version was published in Physical Review Letters 96 (2006): 018305, doi:10.1103/PhysRevLett.96.018305.
    Description: We study the liquid-crystalline phase behavior of a concentrated suspension of helical flagella isolated from Salmonella typhimurium. Flagella are prepared with different polymorphic states, some of which have a pronounced helical character while others assume a rodlike shape. We show that the static phase behavior and dynamics of chiral helices are very different when compared to simpler achiral hard rods. With increasing concentration, helical flagella undergo an entropy-driven first order phase transition to a liquid-crystalline state having a novel chiral symmetry.
    Description: M. S. and R. O. are supported by NIH Grant No. EB002583.
    Keywords: Entropy ; Molecular biophysics ; Liquid crystal phase transformations ; Symmetry ; Chirality
    Repository Name: Woods Hole Open Access Server
    Type: Article
    Format: 765344 bytes
    Format: application/pdf
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  • 2
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    IOS Press | Delft University Press
    Publication Date: 2022-04-28
    Description: The firms and markets of today's complex socio-economic system developed in a spontaneous process termed evolution, in just the same way as the universe, the solar system, the Earth and all that lives upon it. Darwin's theory of evolution clearly demonstrated that evolution involved increasing organization. As we began to explore the molecular basis of life and its evolution, it became equally clear that it depended on the processing and communication of information. This book develops a consistent theory of evolution in its wider sense, examining the information based laws and forces that drive it. Exploring subjects as diverse as economics and the theories of thermodynamics, the author revisits the paradox of the apparent conflict between the laws of thermodynamics and evolution to arrive at a systems theory, tracing a continuous line of evolving information sets that connect the Big-Bang to the firms and markets of our current socio-economic system.
    Keywords: industrial evolution ; thermodynamics ; human evolution ; economic theory ; socio-economic system ; Entropy ; Information set (game theory) ; Macroscopic scale ; bic Book Industry Communication::K Economics, finance, business & management::KC Economics::KCA Economic theory & philosophy ; bic Book Industry Communication::K Economics, finance, business & management::KC Economics::KCB Macroeconomics ; bic Book Industry Communication::P Mathematics & science::PD Science: general issues::PDR Impact of science & technology on society ; bic Book Industry Communication::P Mathematics & science::PG Astronomy, space & time::PGK Cosmology & the universe ; bic Book Industry Communication::P Mathematics & science::PH Physics::PHH Thermodynamics & heat ; bic Book Industry Communication::P Mathematics & science::PS Biology, life sciences::PSA Life sciences: general issues::PSAJ Evolution
    Language: English
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