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Visar resultat 1 - 5 av 532 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Accuracy, efficiency and robustness for rigid particle simulations in Stokes flow

   Författare :Anna Broms; Anna-Karin Tornberg; Mattias Sandberg; Eric Keaveny; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Stokes flow; rigid particles; accuracy; fundamental solutions; method of images; multiblob; contact avoiding; complementarity problem; barrier method; elliptic PDE; grid optimisation; pair-correction; boundary integral equations; Stokesflöde; noggrannhet; stela partiklar; fundamentallösningar; randintegralekvation; reflektionspunkter; multiblob; kontaktundvikande algoritmer; komplementaritetsproblem; barriärmetod; elliptisk PDE; gridoptimering; parkorrektion; Numerical Analysis; Numerisk analys;

   Sammanfattning : The thesis concerns simulation techniques for systems of nano- to micro-scaled rigid particles immersed in a viscous fluid, ubiquitous in nature and industry. With negligible fluid inertia, the set of PDEs known as the Stokes equations can be used to model the hydrodynamics. LÄS MER

3. 2. Crosstalk Between Activated Platelets and the Complement System

   Författare :Osama A. Hamad; Bo Nilsson; Kristina Ekdahl-Nilsson; Lennart Truedsson; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; platelets; activated platelets; TRAP; chondroitin sulfate; C1q; factor H; C4BP; C3; Compstatin; complement; platelet-leukocyte complexes; platelet microparticles; Clinical immunology; Klinisk immunologi; Klinisk immunologi; Clinical Immunology;

   Sammanfattning : Several studies have shown that complement and thrombotic events co-exist. Platelets have been suspected to act as the bridge between the two cascade systems. LÄS MER

4. 3. The Role of IgM and Complement in Antibody Responses

   Författare :Christian Rutemark; Birgitta Heyman; Claus Nielsen; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Complement; antibody response; mutated IgM; natural IgM; complement receptors; SIGN-R1; SAP; CRP; B cells; Medical Science; Medicinsk vetenskap;

   Sammanfattning : An intact complement system including the complement receptors 1 and 2 (CR1/2) is crucial for the generation of a normal antibody response in animals and humans. Moreover, activation of the classical pathway is thought to be important since deficiency in complement components C1q, C2, C4 or C3 lead to impaired antibody responses. LÄS MER

5. 4. The complement system in stherosclerosis and arthritis

   Författare :Linda Persson; Göteborgs universitet; []
   Nyckelord :complement; C3; factor B; ASP; atherosclerosis; hyperlipidemia; arthritis;

   Sammanfattning : The complement system plays an essential role in the humoral immune response. Activated complement has diverse functions, including the initiation of inflammation, recruitment of leukocytes, clearance of immune complexes, neutralization of pathogens, regulation of antibody responses and disruption of cell membranes. LÄS MER

7. 5. Recognition molecules of the complement system: C1q and mannan-binding lectin in autoimmunity and immune defence

   Författare :Ulla Mårtensson; immunologi och glykobiologi - MIG Avdelningen för mikrobiologi; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; transplantation; serologi; Immunologi; Immunology; serology; autoantibodies; collectins; complement; autoimmunity; Infections; Infektioner;

   Sammanfattning : The C1 subcomponent C1q and the mannan-binding lectin (MBL) are recognition proteins of the complement system, and have similar structure. C1q binds to IgG and IgM and activates the classical pathway. MBL binds to carbohydrate structures and activates the lectin pathway. LÄS MER