Conformal Phase Transition, beta-Function, and Infrared Dynamics in QCD
  The dynamics in QCD with different number of fermion flavors N_f is discussed. The emphasis is on the description of the conformal phase transition with respect to N_f separating a phase with no confinement and chiral symmetry breaking and a phase with confinement and with chiral symmetry breaking. 
V. A. Miransky