Treatment of epithelial African green monkey kidney (BSC-1) cells with the potent tumor promoter 12-O-tetradecanoylphorbol-13-acetate (TPA) induces a rapid and reversible redistribution of actin and vinculin that is detectable after only 2 min of treatment. Within 20-40 min, stress fibers disappear, while at the same time large actin-containing ribbons resembling ruffles develop both at the cel...

Small heat shock proteins (sHSPs) are a subgroup of the highly conserved family of HSPs that are stress inducible and confer resistance to cellular stress and injury. This study aimed to quantitatively examine whether type of contraction (concentric or eccentric) affects sHSPs, HSP27 and αB-crystallin, localization, and phosphorylation in human muscle. Vastus lateralis muscle biopsies from 11 h...

in this study, the turbulent kinetic energy redistribution process is investigated. to this aim, the direct numerical simulation (dns) of incompressible flow of a newtonian fluid through a channel at a shear reynolds number of reτ = 180 is used to produce a flow data base. then, these data are statistically analyzed. the turbulent kinetic energy redistribution is studied using the pressure-stra...

Application of Weibull statistics to tensile strength prediction in laminated composites with open holes is revisited. Quasi-isotropic carbon fiber laminates with two stacking sequences [45/0/-45/90]s and [0/45/90/-45]s with three different hole sizes of 2.54mm, 6.35mm and 12.7mm were considered for analysis and experimental examination. The first laminate showed 20% lower strength for smaller ...

During the fiber fracture of unidirectional composite a distribution stress around neighbored fibers happens, this mechanism is called local redistribution efforts. Referring to "shear lag" method, researches wanted predict concentration in surrounding area broken as well longitudinal resistance which presents breaking. The goal paper develop new probabilistic model plate calculate at and their...

BACKGROUND In patients with coronary artery disease, stress-redistribution-reinjection thallium scintigraphy provides important information regarding myocardial ischemia and viability. Although both reversible and mild-to-moderate irreversible thallium defects retain metabolically active, viable myocardium, we hypothesized that stress-induced reversible thallium defects may better differentiate...

PURPOSE To determine the influence of osteochondral defect size on defect rim stress concentration, peak rim stress, and load redistribution to adjacent cartilage over the weightbearing area of the medial and lateral femoral condyles in the human knee. METHODS Eight fresh-frozen cadaveric knees were mounted at 30 degrees of flexion in a materials testing machine. Digital electronic pressure s...

Abstract As a result of the GeomInt research project (Chap. 1) broad combined experimental and numerical platform for investigation discontinuities due to swelling shrinking processes (WP1, Sect. 2.3), pressure-driven percolation (WP2, 2.4) stress redistribution (WP3, important reservoir barrier rocks (clay, salt, crystalline) has been developed. Model comparisons damage fracture driven by diff...

In this paper the problem of a plane strain hydraulic fracture propagating in an elasto-plastic material is analyzed. A new stress redistribution model for proximity tip formulated and resulting plasticity-dependent crack propagation condition introduced. modified variant KGD that accounts plastic deformations near-tip zone only proposed. It demonstrated can be credible substitute full case mod...