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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.

    Disseminate: share your expertise with a global audience

    Pioneer: write the first persistent online review in your area of specialization

    Steward: supervise the development of articles in your field

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    Bjorken Scaling

    Scholarpedia, 4(3):7412 (2009)

    Wu-Ki Tung

    Dr. Wu-Ki Tung (b. 1939,Kunming, China, d. Mar 30, 2009, Seattle, Washington) was educated at National Taiwan University and received his Ph.D. at Yale University in 1966. Wu-Ki Tung was Professor Emeritus at Michigan State University (MSU), and Affiliated Professor at University of Washington.

    He was a theoretical physicist, whose main interest was the study of phenomenological aspects of high energy particle physics, particularly in the field of Quantum Chromodynamics (QCD) and, more specifically, of parton distributions in hadrons. Parton distribution functions are among the standard inputs needed to compare theoretical calculations to experiments like Fermilab Tevatron and the CERN Large Hadron Collider (LHC).

    Dr. Wu-Ki Tung was the founder of The Coordinated Theoretical-Experimental Project on Quantum Chromodynamics Collaboration (CTEQ). He led the CTEQ global QCD analysis group to determine parton distribution functions from high energy scattering experiments of different types. Dr. Wu-Ki Tung's group at MSU recognized the importance of developing a systematic error analysis for the global analysis, which has now been widely used in various experimental and theoretical analyses. Dr. Wu-Ki Tung was a founding member of Overseas Chinese Physics Association (OCPA) and had been actively involved in its development and activities ever since.

    He was also the author of an influential book Group Theory in Physics, which is used all over the world.

    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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