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<font color="#000099"><b><font color="#3333ff">Special Seminar<br>
Wednesday, November 3, 2010<br>
4:00PM<br>
CEBAF Center AUD.<br>
Cookies & Coffee at 3:45PM<br>
</font></b></font><font color="#cc0000"><b><br>
</b></font><b><font color="#cc0000">Elliot
Leader
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Imperial College, London
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"Polarized Parton Densities"</font></b>
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We present the results from the second-ever NLO QCD combined analysis
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of the world data on polarized inclusive and semi-inclusive deep
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inelastic scattering, recently carried out by the LSS Collaboration.
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We discuss in particular the controversy concerning the strange quark
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polarization and the question of Higher Twist terms in the expression
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for g_1.<br>
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