The Stewartson-Warn-Warn (SWW) solution for the time evolution of an inviscid, nonlinear Rossby-wave critical layer, which predicts that the critical layer will alternate between absorbing and over-reflecting states as time goes on, is shown to be hydrodynamically unstable. The instability is a two-dimensional shear instability, owing its existence to a local reversal of the cross-stream absolu...

In this paper, mesogenic polyelectrolyte gels (MPEgels) tethering mesogenic groups on the side chains were synthesized from a mesogenic monomer and ionic monomer via a conventional radical polymerization process. The obtained MPEgels absorbed various organic solvents in a wide range of dielectric constants from chloroform (ε = 7.6) to DMSO (ε = 46.5). The electrostatic repulsion among the polym...

P roponents of bioresorbable scaffolds (BRS) define them as a transformative technology suggesting that coronary repair will improve long-term clinical outcomes. Skeptics have questioned the early safety, and overall merit of BRS in the era of secondand third-generation drug-eluting metallic stents (DES). Nevertheless, BRS have sparked enormous interest and debate. Indeed, over the last decade ...

SEE PAGE 791 B ioresorbable vascular scaffolds (BVS) boast the unique ability to satisfy the temporary need for mechanical support during initial arterial healing following percutaneous coronary revascularization, obviating the long-term disadvantages of permanent metallic prostheses. Based on the results of the ABSORB trial cohort A (n 1⁄4 30) (1) and cohort B (n 1⁄4 101) (2), the Absorb BVS (...

Treatment of coronary bifurcation lesions is common in everyday practice and accounts for ≤20% of all percutaneous coronary interventions. The treatment of these lesions with drug-eluting stents, especially when a double-stent technique is used, remains challenging and is associated with a lower procedural success and a higher rate of long-term adverse cardiac events such as stent restenosis an...