The establishment of the primitive streak and its derivative germ layers, mesoderm and endoderm, are prerequisite steps in the formation of many tissues. To model these developmental stages in vitro, an ES cell line was established that expresses CD4 from the foxa2 locus in addition to GFP from the brachyury locus. A GFP-Bry(+) population expressing variable levels of CD4-Foxa2 developed upon d...

This paper presents a strategy for real-time visual identiication and tracking of complex objects which does not rely on specialized image-processing hardware. In this system perceptual schemas represent objects as a graph of primitive features. Distributed software agents identify and track these features, using variable-geometry image subwindows of limited size. Active control of imaging para...

In this paper, we prove the global existence and large time decay estimate of solutions to Prandtl system with small initial data, which is analytical in tangential variable. The key ingredient used proof derive a sufficiently fast decay-in-time some weighted analytic energy quantity, consists linear combination velocity its primitive one, basically controls evolution radius solutions. Our resu...