5 We address the problem of distributed unconstrained convex optimization under separability assumptions, i.e., the framework 6 where a network of agents, each endowed with a local private multidimensional convex cost and subject to communication constraints, 7 wants to collaborate to compute the minimizer of the sum of the local costs. We propose a design methodology that combines average 8 co...

We study a classical Bayesian statistics problem of sequentially testing the sign of the drift of an arithmetic Brownian motion with the ‘0 − 1’ loss function and a constant cost of observation per unit of time for general prior distributions. The statistical problem is reformulated as an optimal stopping problem with the current conditional probability that the drift is non-negative as the und...

The noncanonical wnt/planar cell polarity (PCP) pathway [1] regulates the mediolaterally (planarly) polarized cell protrusive activity and intercalation that drives the convergent extension movements of vertebrate gastrulation [2], yet the underlying mechanism is unknown. We report that perturbing expression of Xenopus PCP genes, Strabismus (Xstbm), Frizzled (Xfz7), and Prickle (Xpk), disrupts ...