On the Behavior of F2 and its Logarithmic Slopes
  It is shown that the CKMT model for the nucleon structure function F2, taken as the initial condition for the NLO evolution equations in perturbative QCD, provides a good description of the HERA data when presented in the form of the logarithmic slopes of F2 vs x and Q2 (Caldwell-plot), in the whole available kinematic ranges. Also the results obtained for the behavior of the gluon component of a nucleon are presented. 
A.B. Kaidalov (ITEP-Moscow), C. Merino (U. of Santiago de Compostela),   D. Pertermann (U. GH-Siegen)