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This Week at Physics

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Events on Tuesday, March 19th, 2013

Chaos & Complex Systems Seminar
The textual structure of REM dreaming
Time: 12:05 pm
Place: 4274 Chamberlin (refreshments will be served)
Speaker: Art Schmaltz, Prairie State College
Abstract: The human brain during REM dreaming is a singular neurological event that may well be the most complex event known to science. As a biologically evolved system, dreaming long predates the evolution of human language.<br>
In this presentation, I will parse out one of the ten lines of evidence that argues that human language evolved &quot;down&quot; from the complexity of dreaming, and not &quot;up&quot; from a simpler biological system.
Host: Sprott
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"Physics Today" Undergrad Colloquium (Physics 301)
Time: 1:20 pm
Place: 2223 Chamberlin
Speaker: Clint Sprott, University of Wisconsin Department of Physics
Abstract: A series of weekly presentations and discussions of current research topics in physics by the scientists involved in those studies designed to expose students to the topics and excitement of the research frontier.
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WIPAC Seminar
Ultra-high energy neutrino events at the IceCube and the Glashow resonance
Time: 4:00 pm
Place: 5280 Chamberlin
Speaker: Atri Bhattacharya, Harish-Chandra Research Institute, Allahabad, India
Abstract: The Glashow resonance is a peak of enhanced cross-section for an electron-anti-neutrino of 6.3 PeV energy interacting with an electron and producing a resonant W boson, which further decays into electrons and hadrons producing cascades in a large volume (Km^3) neutrino detector such as the IceCube. We will explore the significance of this narrow bin of energy, generally with respect to ultra-high energy events in the IceCube, and particularly, in view of the two recently observed neutrino events at the PeV energies; we will show that the observation of (or lack of) events at 6.3 PeV energies in the future will allow us to understand several facets of the Ultra-high energy neutrino flux coming, possibly, from extra-galactic sources.
Host: Halzen
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