We study the impact of the Peterlin approximation on the statistics of the end-to-end separation of polymers in a turbulent flow. The finitely extensible nonlinear elastic (FENE) model and the FENE model with the Peterlin approximation (FENE-P) are numerically integrated along a large number of Lagrangian trajectories resulting from a direct numerical simulation of three-dimensional homogeneous...

Failure of a unipolar pacemaker system due to subcutaneous emphysema is a rare but potentially life-threatening complication after implantation. We report on a pacemaker dysfunction observed three days after implantation in a 91-year-old patient following development of marked subcutaneous emphysema. Function was immediately restored following application of pressure bandages and the condition ...