Lagrangian Statistics and Temporal Intermittency in a Shell Model of   Turbulence
  We study the statistics of single particle Lagrangian velocity in a shell model of turbulence. We show that the small scale velocity fluctuations are intermittent, with scaling exponents connected to the Eulerian structure function scaling exponents. The observed reduced scaling range is interpreted as a manifestation of the intermediate dissipative range, as it disappears in a Gaussian model of turbulence. 
G. Boffetta, F. De Lillo and S. Musacchio