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    Welcome to Scholarpedia

    the peer-reviewed open-access encyclopedia,
    where knowledge is curated by communities of experts.

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    Academics author encyclopedic articles on the subject areas they know best.

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    Each article undergoes scholarly peer-review and, if accepted, is published.

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    As the field advances, an expert curator vets article revisions.

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    Grassberger-Procaccia algorithm

    Scholarpedia, 2(5):3043 (2007)

    Peter Grassberger

    Dr. Peter Grassberger (b. in Vienna, Austria, May 17, 1940) received his DPhil in theoretical high energy physics in 1965 at the University of Vienna, after which he worked as a Postdoctoral fellow at Bonn University until 1968. His first Professorship was at the University of Kabul, beginning in 1969, from there moving to Bonn University (1971), CERN (1973), Université de Nice (1975), and the University of Wuppertal (1977) where he remained until 2005, and headed the Complex Systems Research Group at the John-von-Neumann Institute, Forschungszentrum Jülich beginning in 1996. Since 2006 he has been a visiting Research Professor at Department of Physics and Astronomy, University of Calgary.

    Dr. Grassberger's research interests range from particle physics to statistical physics and dynamical systems. Currently he is working on a multitude of different problems: reaction-diffusion systems and simple epidemic models, complex networks, applications of mutual information to network inference, independent component analysis and sequence alignment, cellular automata, self organized criticality, percolation, heat conduction in low dimensional systems, and strange attractors. A large part of his work during the last 15 years has dealt with sequential sampling algorithms applied to polymers, lattice animals, subgraph counting, and reaction-diffusion systems.

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    Each week Scholarpedia recognizes a different contributing author by featuring a short bio of them on the home page.

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    Focused encyclopedias are published by Springer/Atlantis Press as printed volumes. The first printed volume is....

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      Image by Atlantis Press licensed under CC BY 4.0, copyright 2016.

      Scholarpedia of Touch

      Tony J. Prescott, Ehud Ahissar, and Eugene Izhikevich, Eds. (2016). Scholarpedia of Touch. Paris: Atlantis Press.

      Touch is the ability to understand the world through physical contact. The noun “touch” and the verb “to touch” derive from the Old French verb “tochier”. Touch perception is also described by the adjectives tactile from more Icon more.png

    • Image by Springer/Atlantis Press licensed under CC BY 4.0, copyright 2016.

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      Evolutionary Robotics

      Fernando Silva et al. (2016), Scholarpedia, 11(7):33333.

      Evolutionary robotics is a field of research that employs evolutionary computation to generate robots that adapt to... more Icon more.png

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      High energy cosmic rays

      Lu Lu and Alan Watson (2016), Scholarpedia, 11(7):32454.

      Cosmic rays with the kinetic energy of a well-hit tennis ball strike the top of the earth’s atmosphere about 10 times every second... more Icon more.png

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      The LHCb experiment

      Fatima Soomro and PierLuigi Campana (2016), Scholarpedia, 11(7):32452.

      The dominance of matter in our Universe is one of the deepest mysteries in Nature. According to theoretical models, matter and anti-matter... more Icon more.png

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      Rare decays of b hadrons

      Patrick Koppenburg et al. (2016), Scholarpedia, 11(6):32643.

      Physics studies fundamental interactions and their effects. At the most basic level, particle physics aims to describe the fundamental blocks of... more Icon more.png

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      Bianchi universes

      Andrew Pontzen (2016), Scholarpedia, 11(4):32340.

      Bianchi universes are the class of cosmological models that are homogeneous but not necessarily isotropic on spatial slices, named after... more Icon more.png

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