Economist Sylvia Porter

General note: Title and date provided by Bettye Lane.

Economist Sylvia Porter

General note: Title and date provided by Bettye Lane.

University of Michigan Football Team, 1913

Football squad on practice field. 1913

University of Michigan Football Team, 1913

Football squad on practice field 1913, from 1913 Penn game program.

University of Michigan Football Team, 1913

Football team posed on practice field, 1913

Negro folk singing games and folk games of the habitants ... [music] /

Mode of access: Internet.

The effect of promotion rates on school efficiency,

Mode of access: Internet.

The Field illustrated : a journal of advanced agriculture, scientific breeding and rural sports.

Editors: May 1912-Feb. 1913, A. H. Godfrey (with A. H. Waddell, Sept. 1912-Feb. 1913).--Mar. 1913- A. H. Waddell.

Beam-energy Dependence Of Charge Separation Along The Magnetic Field In Au+au Collisions At Rhic.

Local parity-odd domains are theorized to form inside a quark-gluon plasma which has been produced in high-energy heavy-ion collisions. The local parity-odd domains manifest themselves as charge separation along the magnetic field axis via the chiral magnetic effect. The experimental observation of charge separation has previously been reported for heavy-ion collisions at the top RHIC energies. In this Letter, we present the results of the beam-energy dependence of the charge correlations in Au+Au collisions at midrapidity for center-of-mass energies of 7.7, 11.5, 19.6, 27, 39, and 62.4 GeV from the STAR experiment. After background subtraction, the signal gradually reduces with decreased beam energy and tends to vanish by 7.7 GeV. This implies the dominance of hadronic interactions over partonic ones at lower collision energies.