Can the polarization of the strange quarks in the proton be positive ?
  Recently, the HERMES Collaboration at DESY, using a leading order QCD analysis of their data on semi-inclusive deep inelastic production of charged hadrons, reported a marginally positive polarization for the strange quarks in the proton. We argue that a non-negative polarization is almost impossible. 
E. Leader (Imperial College, London), D.B. Stamenov (Institute for   Nuclear Research, Sofia)