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Visar resultat 1 - 5 av 8 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Peroxyoxalate Chemiluminescence for Miniaturized Analytical Flow Systems

   Författare :Tobias Jonsson; Umeå universitet; []
   Nyckelord :peroxyoxalate; chemiluminescence; nucleophilic catalysis; non-nucleophilic base; imidazole; triazole; aminopyridine; miniaturized; flow system; capillary electrophoresis; multivariate; analytisk kemi; Analytical Chemistry;

   Sammanfattning : This thesis deals with the peroxyoxalate chemiluminescence (POCL) reaction and its application as a detection technique in flow systems for chemical analysis. Particularly, miniaturized flow systems aimed for separation of molecules. LÄS MER

3. 2. Cut finite element methods on parametric multipatch surfaces

   Författare :Tobias Jonsson; Mats G. Larson; Karl Larsson; Johan Hoffman; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Cut finite element method; Nitsche method; a priori error estimation; Mathematics; matematik;

   Sammanfattning : .... LÄS MER

4. 3. Cut isogeometric methods on trimmed multipatch surfaces

   Författare :Tobias Jonsson; Mats G. Larson; Karl Larsson; Johan Hoffman; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; cut finite element method; isogeometric analysis; Nitsche s method; a priori error estimation; parametric geometry; interface problem; surface CAD;

   Sammanfattning : Partial differential equations (PDE) on surfaces appear in a variety of applications, such as image processing, modeling of lubrication, fluid flows, diffusion, and transport of surfactants.  In some applications, surfaces are drawn and modeled by using CAD software, giving a very precise patchwise parametric description of the surface. LÄS MER

5. 4. The Role of Fibroblast Growth Factor 23 in Phosphate Homeostasis

   Författare :Tobias Erik Martin Larsson; Kenneth Jonsson; Östen Ljunggren; Suzanne Jan De Beur; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Medicine; Fibroblast Growth Factor 23; FGF-23; phosphate homeostasis; vitamin D metabolism; sodium phosphate cotransporters; autosomal dominant hypophosphatemic rickets; ADHR; X-linked hypophosphatemic rickets; XLH; oncogenic osteomalacia; OOM; PHEX; Medicin; Dermatology and venerology; clinical genetics; internal medicine; Dermatologi och venerologi; klinisk genetik; invärtesmedicin;

   Sammanfattning : The regulation of serum phosphate (Pi) concentrations is a complex process and our current models are far from complete. Due to major advancements in biotechnology and the development of more powerful research tools, recent advances in the field of genetics has led to the identification of several candidates for the long sought-after phosphatonin(s), or Pi regulating hormones. LÄS MER

7. 5. Fibroblast growth factor-23 and Klotho in bone/mineral and parathyroid disorders

   Författare :Tijana Krajisnik; Tobias E. Larsson; Kenneth B. Jonsson; Östen Ljunggren; Peyman Björklund; Gunnar Sterner; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; calcitriol; chronic kidney disease; CKD; chronic renal failure; fibroblast growth factor 23; fibroblast growth factor-23; FGF23; FGF-23; GalNac-T3; GALNT3; GFR; hyperostosis-hyperphosphatemia syndrome; HHS; Klotho; parathyroid hormone; PTH; hyperparathyroidism; pHPT; sHPT; uremic; vitamin D3; Endocrinology; Endokrinologi; Internal Medicine; invärtesmedicin;

   Sammanfattning : Fibroblast growth factor-23 (FGF23) is a novel, bone-produced hormone that regulates renal phosphate (Pi) reabsorption and calcitriol metabolism. Disorders of mineral and bone metabolism, such as autosomal dominant hypophosphatemic rickets (ADHR) and hyperostosis-hyperphosphatemia syndrome (HHS), witness the importance of well-balanced serum levels of FGF23. LÄS MER