Search for dissertations about: "SHEAR-STRESS"

Showing result 1 - 5 of 159 swedish dissertations containing the word SHEAR-STRESS.

  2. 1. Towards Subject Specific Aortic Wall Shear Stress : a combined CFD and MRI approach

    Author : Johan Renner; Matts Karlsson; Toste Länne; Patrick Segers; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fluid mechanics; Strömningsmekanik;

    Abstract : The cardiovascular system is an important part of the human body since it transports both energy and oxygen to all cells throughout the body. Diseases in this system are often dangerous and cardiovascular diseases are the number one killer in the western world. READ MORE

  4. 2. A MATTER OF NUTRIENT EXCESS AND SHEAR STRESS

    Author : Ramasri Sathanoori; Kardiologi; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Abstract : The metabolic syndrome is a clustering of several risk factors associated with diabetes and cardiovascular disease. Diabetes is a global problem with 90% of patients suffering from type 2 diabetes (T2D), which is attributable to various factors including genetic predispositions and lifestyle. READ MORE

  5. 3. Turbulent Flow in Constricted Blood Vessels : Quantification of Wall Shear Stress Using Large Eddy Simulation

    Author : Roland Gårdhagen; Matts Karlsson; Toste Länne; Leif Rune Hellevik; Linköpings universitet; []
    Keywords : ;

    Abstract : The genesis of atherosclerosis has previously been shown to be affected by the frictional load from the blood on the vessel wall, called the wall shear stress (WSS). Assessment of WSS can therefore provide important information for diagnoses, intervention planning, and follow‐up. READ MORE

  6. 4. Development of a New Biomechanical ex vivo Perfusion System - Studies on effects of biomechanical and inflammatory stress on hemostatic genes in human vascular endothelium

    Author : Niklas Bergh; Göteborgs universitet; []
    Keywords : ex vivo perfusion system; biomechanical; endothelium; shear stress; tensile stress; pulsatile; TNF-α; JNK; hemostatic genes;

    Abstract : The vascular endothelium is a multifunctional interface constantly exposed to biomechanical forces such as shear and tensile stress. Biomechanical stress is involved in the pathophysiological process of the vessel wall and thus affects vascular remodeling, atherosclerosis and thrombogenesis. READ MORE

  7. 5. Effects of Biomechanical Stress on Gene Regulation in Vascular Cells

    Author : Maria Carlström; Göteborgs universitet; []
    Keywords : shear stress; intraluminal pressure; endothelium; gene expression; DNA microarray; real-time RT-PCR; reference genes; smooth muscle cells; P2 receptors; TNF-alpha; urokinase-type plasminogen activator;

    Abstract : The vascular vessel wall is constantly exposed to biomechanical forces, such as shear and tensile stress. Biomechanical forces are important for several physiological and pathological processes and have been shown to regulate a number of fundamental vascular functions, such as vascular tone and remodeling processes. READ MORE