Results 11 to 20 of about 1,654,677 (246)
The influence of the nonsingular stress term (T-stress), existing in the Williams expansion of the crack tip stress field, on the fracture behavior of the compressive-shear crack is comprehensively considered in this paper.
Mingyu Feng +3 more
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Ozone Pollution, Oxidative Stress, Regulatory T Cells and Antioxidants
Ozone pollution, is a serious health problem worldwide. Repeated exposure to low ozone doses causes a loss of regulation of the oxidation–reduction systems, and also induces a chronic state of oxidative stress.
Selva Rivas-Arancibia +8 more
doaj +1 more source
Effect of the Material Gradation on the Fracture Trajectory in Ceramic/Metal Functionally Graded Materials [PDF]
This paper is based on a 2D numerical study of crack initiation and growth in ceramic/metal functionally graded materials (FGMs) under mixed mode condition. The finite element method is used for modeling the crack growth trajectory.
M.A. Bouchelarm +3 more
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Décollement geometry controls on shallow very low frequency earthquakes
Recent studies have documented the occurrence of shallow very low frequency earthquakes (VLFE) in subduction zones. The heterogeneity of the materials or stresses that act on the plate interface results in the variable slip rate.
Yoshitaka Hashimoto +8 more
doaj +1 more source
Effect of load sequence interaction on bond-wire lifetime due to power cycling
Experimental investigations on the effects of load sequence on degradations of bond-wire contacts of Insulated Gate Bipolar Transistors power modules are reported in this paper.
Zoubir Khatir +4 more
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Fluid shear stress enhances T cell activation through Piezo1
Background T cell activation is a mechanical process as much as it is a biochemical process. In this study, we used a cone-and-plate viscometer system to treat Jurkat and primary human T cells with fluid shear stress (FSS) to enhance the activation of ...
Jacob M. Hope +7 more
doaj +1 more source
Study on the apoptosis mechanism induced by T-2 toxin. [PDF]
T-2 toxin is known to induce apoptosis in mammalian cells. The mechanism of apoptosis induced by T-2 toxin has been proposed to be linked with oxidative stress and mitochondrial pathway.
Zhenhong Zhuang +3 more
doaj +1 more source
Chronic stress physically spares but functionally impairs innate-like invariant T cells
Summary: The deleterious effects of psychological stress on mainstream T lymphocytes are well documented. However, how stress impacts innate-like T cells is unclear.
Patrick T. Rudak +12 more
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miR200-regulated CXCL12β promotes fibroblast heterogeneity and immunosuppression in ovarian cancers
Cancer-associated fibroblasts (CAFs) are an important part of the tumor microenvironment. Here the authors characterize four subsets of CAFs across human samples of ovarian cancer subtypes and show in the mesenchymal subtype a specific CAF-S1 population ...
Anne-Marie Givel +12 more
doaj +1 more source
Introduction Medical-education is associated with high overall stress and it is important to identify relevant factors. Objectives The study was aimed to discern the differences in perceived stress among the students of public and private medical ...
M. Fatima +9 more
doaj +1 more source

