[1] We report on laboratory friction experiments in which simulated faults are exposed to shear velocity oscillations at different amplitudes and frequencies. Granular layers are sheared in a servo-controlled biaxial apparatus at constant normal stress and background shear velocity, with a shear velocity sinusoid superimposed. Correlation between oscillations and stick-slip events is determined...

PURPOSE Oxidative stress plays a key role in the pathophysiology of glaucoma. This study was designed to assess ethyl pyruvate (EP) as a novel antioxidative agent in cultured human trabecular meshwork (hTM) cells. METHODS Primary hTM cells were cultured on collagen matrices. Tolerance to EP was assessed at various concentrations using fluorescent vital dyes (live/dead) and metabolic (1-(4,5-d...

In the oncology specialty, many factors can result in occupational stress in nursing professionals. As an attempt to controlling this situation, individuals may use coping strategies. Coping is a cognitive and behavioral effort one uses to face a stressful situation. The aims of this study were to identify the stressful factors regarding oncology nurses, and to verify what coping strategies the...

Stressing Rac, Ras, and Downstream Heat Shock Protein 70 Print ISSN: 0009-7330. Online ISSN: 1524-4571 Copyright © 2000 American Heart Association, Inc. All rights reserved. is published by the American Heart Association, 7272 Greenville Avenue, Dallas, TX 75231 Circulation Research doi: 10.1161/01.RES.86.11.1101 2000;86:1101-1103 Circ Res. http://circres.ahajournals.org/content/86/11/1101 Worl...

Extreme weather events like drought and heavy rain are likely to increase with climate change in Central Europe and may affect nutrient content in plants. They may therefore influence the performance (growth rate, developmental time, mortality, body size/mass, fecundity) and population dynamics of herbivorous insects. We conducted a common-garden experiment on food plants to investigate effects...

The abnormal accumulation of fat increases the lifespans of nematodes that lack sex cells.

The ubiquity of threshold voltage relaxation is demonstrated in samples with both conventional and high-k dielectrics following various stress conditions. A technique based on recording short traces of relaxation during each measurement phase of a standard measure-stress-measure sequence allows monitoring and correcting for the otherwise-unknown relaxation component. The properties of relaxatio...

I shall discuss some ”conditions of possibility” of a quantum theory of gravity, stressing the need for solutions to some of fundamental problems confronting any attempt to apply some method of quantization to the field equations of general relativity.