Short title: Centered random walks Abstract: we extend the Carne-Varopoulos upper bound on the probability transitions of a Markov chain to a certain class of non-reversible processes by introducing the definition of a ‘centering measure’. In the case of random walks on a group, we study the connections between different notions of centering.

PURPOSE One difficulty with Descemet's stripping automated endothelial keratoplasty (DSAEK) is air management during surgery and donor endothelial lamella centering. We evaluated the no-touch technique for donor centering and the use of a newly developed DSAEK donor adjuster. METHODS We evaluated the records of 12 consecutive patients (mean age 75.3 years) with bullous keratopathy who had und...

We propose a family of search directions based on primal-dual entropy in the context of interior point methods for linear programming. This new family contains previously proposed search directions in the context of primal-dual entropy. We analyze the new family of search directions by studying their primal-dual affine-scaling and constant-gap centering components. We then design primal-dual in...

Centrosome positioning is actively regulated by forces acting on microtubules radiating from the centrosomes. Two mechanisms, center-directed and polarized cortical pulling, are major contributors to the successive centering and posteriorly displacing migrations of the centrosomes in single-cell-stage Caenorhabditis elegans. In this study, we analyze the spatial distribution of the forces actin...

The existing connection between the concrete-filled double steel tubular (CFDST) column and reinforced concrete (RC) beam is difficult to repair reuse after damage. In this paper, a self-centering joint CFDST RC proposed. of realized by prestressed strands, energy dissipation friction. overall purpose research analyze influence strand friction on mechanical behavior joint. By comparing envelope...