Background and Objectives: Nanostructured dispersed semiconductor structures are of some interest as functional materials for modern chemoresistive sensing and photocatalytic chemistry.Among the promising semiconductor materials for such applications is, in particular, titanium dioxide in the modification of anatase.Despite a significant number of

Background: Low back pain is an important disorder linked with degenerative changes in the intervertebral disc (IVD).Degradation of IVD is caused by decreased number of cells, reduced production and degradation of extracellular matrix of IVD tissue especially in nucleus pulposus (NP).Natural and synthetic scaffolds are used for regeneration of IVD

Performance data on earth dams and levees continue to indicate that piping is one of Sneakers for Men - Grey - Canvas Mesh Athletic Running Shoes the major causes of failure.Current criteria for prevention of piping in earth dams and levees have remained largely empirical.This paper aims at developing a mechanistic understanding of the conditions n

sex shop arles We analyze two LLBL crossings made by the Interball-Tail satellite under a southward or variable magnetosheath magnetic field: one crossing on the flank of the magnetosphere, and another one closer to the subsolar point.Three different types of ion velocity distributions within the LLBL are observed: (a) D-shaped distributions, (b) i

This paper proposes a nonsingular terminal sliding mode control scheme with fast fixed-time convergence for a class of second-order nonlinear systems in the presence of matched uncertainties and perturbations.First, based on fixed-time stability theory, a novel stable system is proposed.Then, using the fixed-time dea eyewear stable system, a fast f