Results 231 to 240 of about 536,244 (268)
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2013
We shall continue now the theoretical study of the preceding chapter, by putting in evidence the stresses which arise because of the deformation of a solid body; both vector and tensor aspects of the stress are thus emphasized.
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We shall continue now the theoretical study of the preceding chapter, by putting in evidence the stresses which arise because of the deformation of a solid body; both vector and tensor aspects of the stress are thus emphasized.
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Metabolic Mechanisms of Stress Hyperglycemia
Journal of Parenteral and Enteral Nutrition, 2006Stress hyperglycemia has gained the attention of virtually every physician who encounters critically ill patients, with the emergence of clinical data supporting tight glycemic control and intensive insulinization for optimal outcome. In order to effectively manage stress hyperglycemia, newer theories of critical illness and the interactions of the ...
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Cell adhesion mechanisms and stress relaxation in the mechanics of tumours
Biomechanics and Modeling in Mechanobiology, 2008Tumour cells usually live in an environment formed by other host cells, extra-cellular matrix and extra-cellular liquid. Cells duplicate, reorganise and deform while binding each other due to adhesion molecules exerting forces of measurable strength. In this paper, a macroscopic mechanical model of solid tumour is investigated which takes such adhesion
D. AMBROSI, PREZIOSI, LUIGI
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Effects of stress on muscarinic mechanisms
Neuroscience & Biobehavioral Reviews, 1988Hyperactivity of muscarinic mechanisms may be involved in the patho-physiology of depressive disorders and stress. The literature emphasizes the impact of stress on aminergic networks and muscarinic mechanisms are generally not accorded a significant role in the neurobiology of stress.
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Learning to cope with stress: psychobiological mechanisms of stress resilience
Reviews in the Neurosciences, 2012Stress is the main non-genetic source of psychopathology. Therefore, the identification of neurobiological bases of resilience, the resistance to pathological outcomes of stress, is a most relevant topic of research. It is an accepted view that resilient individuals are those who do not develop helplessness, or other depression-like phenotypes ...
CABIB, Simona +2 more
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The Molecular Mechanism of Macrophages in Response to Mechanical Stress
Annals of Biomedical EngineeringMacrophages, a type of functionally diversified immune cell involved in the progression of many physiologies and pathologies, could be mechanically activated. The physical properties of biomaterials including stiffness and topography have been recognized as exerting a considerable influence on macrophage behaviors, such as adhesion, migration ...
Yuntong, Su, Xing, Yin
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Mechanics of Elastic Stress Transfer
2016At the beginning of the loading regime—when the DFRC is subjected to low applied loads—the response of the DFRC to the applied load is regulated by the elastic stress transfer mechanism. As the load increases, eventually the DFRC undergoes a transition from the elastic stress transfer stage to the plastic stress transfer stage.
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Signal Transduction and Mechanical Stress
Science's STKE, 2004Bone undergoes a constant process of remodeling in which mass is retained or lost in response to the relative activity of osteoblasts and osteoclasts. Weight-bearing exercise—which is critical for retaining skeletal integrity—promotes osteoblast function, whereas a lack of mechanical stimulation, as seen during spaceflight or prolonged bed rest, can ...
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The Virial Stress Is Not a Measure of Mechanical Stress
MRS Proceedings, 2002AbstractThe virial stress is the most commonly used definition of stress in discrete molecular systems. This stress includes two parts. The first part depends on the mass and velocity of atomic particles, reflecting an assertion that mass transfer causes mechanical stress to be applied on stationary spatial surfaces external to an atomic particle ...
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Effects of interfacial residual stress on mechanical behavior of SiCf/SiC composites
Journal of Advanced Ceramics, 2021Guofeng Cheng +2 more
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