Sökning: "contraction"

Visar resultat 1 - 5 av 394 avhandlingar innehållade ordet contraction.

  1. 1. Smooth Muscle Modeling : Activation and contraction of contractile units in smooth muscle

    Författare :Sae-Il Murtada; Gerhard Holzapfel; Martin Kroon; Jonas Stålhand; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; muscle; modeling; contraction; activation; phosphorylation; artery; bladder; Solid mechanics; Fastkroppsmekanik;

    Sammanfattning : .... LÄS MER

  2. 2. Extensional rheometry through hyperbolic contraction

    Författare :Magda Nyström; Chalmers University of Technology; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ENGINEERING AND TECHNOLOGY; dysphagia; Boger fluid; hyperbolic contraction flow; extensional rheology; axisymmetric contraction–expansion; numerical simulation; Viscoelastic fluid; pressure drop;

    Sammanfattning : To understand fluid rheology, properties such as consistency and viscosity are determined in both shear and extensional flow. Many commonly-used materials and formulations exhibit complex rheological properties and in order to determine the behaviour as well as predict and govern their properties, effective and reliable characterisation of these fluids is important. LÄS MER

  3. 3. Regulation of striated muscle contraction

    Författare :Ying Dou; Karolinska Institutet; Karolinska Institutet; []

    Sammanfattning : Background and Aims: Muscle contraction involves cross-bridge interaction between actin and myosin filaments, which is regulated by variations of intracellular [Ca2+] and influenced by several external control systems. To characterize the mechanism of contraction, we have studied the effects of pharmacological compounds influencing the actin-myosin interaction and/or Ca2+ activation systems. LÄS MER

  4. 4. Conctraction-mediating receptors in human peripheral vessels with special reference to veins and lymphatics

    Författare :Trygve Sjöberg; Thoraxkirurgi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Human; arteries; veins; lymphatis; contraction; in vitro; in vivo; adrenergic receptors; noradrenaline; cirazoline; phenylephrine; clonidine; calcium antagonists; nifedipine; diltiazem; prostaglandins; thromboxane A2; U-46619; BM-13.505; indomethacin;

    Sammanfattning : By means of a myograph, postjunctional alpha-adrenoceptors were characterized in human superficial epigastric arteries and veins obtained from health subjects. The rank order of potency of subtype selective agonists could not be used for receptor characterization in these vessels, whereas antagonists gave distinct results. LÄS MER

  5. 5. Biomechanical consequences of gait impairment at the ankle and foot : Injury, malalignment, and co-contraction

    Författare :Ruoli Wang; Elena Gutierrez-Farewik; Eva Broström; Eriksson Anders; Ilse Jonkers; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; muscle function; gait analysis; induced acceleration; foot kinematics; dynamic joint stiffness;

    Sammanfattning : The human foot contributes significantly to the function of the whole lower extremity during standing and locomotion. Nevertheless, the foot and ankle often suffer injuries and are affected by many musculoskeletal and neurological pathologies. LÄS MER