Sökning: "activity quantification"

Visar resultat 21 - 25 av 137 avhandlingar innehållade orden activity quantification.

  1. 21. [18F]Flutemetamol PET image processing, visualization and quantification targeting clinical routine

    Författare :Johan Lilja; Sörensen Jens; Mark Lubberink; Elna-Marie Larsson; Lars Olson; Claus Svarer; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; quantification; flutemetamol; amyloid imaging; Alzheimer’s disease; positron emission tomography; brain mapping; stereotactic surface projections; image registration; Computerized Image Processing; Datoriserad bildbehandling;

    Sammanfattning : Alzheimer’s disease (AD) is the leading cause of dementia and is alone responsible for 60-70% of all cases of dementia. Though sharing clinical symptoms with other types of dementia, the hallmarks of AD are the abundance of extracellular depositions of β-amyloid (Aβ) plaques, intracellular neurofibrillary tangles of hyper phosphorylated tau proteins and synaptic depletion. LÄS MER

  3. 22. Calorimetric methods for the study of fungi on building materials

    Författare :Yujing Li; Avdelningen för Byggnadsmaterial; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; fungal growth; fungal activity; ergosterol; humidity; temperature; calorespirometry; oxygen; mätmetoder; röta; svamp; byggmaterial; påväxt; kalorimetri; microcalorimetry; isothermal calorimetry; Fungi; building materials; mould; Serpula lacrymans; rot fungi;

    Sammanfattning : The aim of this project is to study the fungal growth habits on building materials as a function of humidity, temperature and other environmental parameters. The method of calorimetry is used as a way to quantify fungal activity on building materials. LÄS MER

  4. 23. Respiratory NAD(P)H dehydrogenases of plants - Gene identity and expression in response to light and cold

    Författare :Staffan Svensson; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; morfologi; phytogeography; chemotaxonomy. Physiology of nonvascular plants; Systematisk botanik; taxonomi; morphology; taxonomy; Systematic botany; Växtgenetik; Plant genetics; plant mitochondria; NADH dehydrogenases; light dependence; mRNA quantification; leaf respiration; cold treatment; kemotaxonomi. Växters fysiologi inte kärlväxter .;

    Sammanfattning : The respiratory chain of plants contains class 2 NAD(P)H dehydrogenases, not present in animals. The functional roles of these enzymes have been elusive for a long time. Two cDNAs, homologous to class 2 NADH dehydrogenase genes of yeast and E. coli, were isolated from potato leaves. LÄS MER

  5. 24. Positron emission tomography : development, evaluation and application of quantification methods

    Författare :Pontus Plavén-Sigray; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Positron Emission Tomography (PET) is an imaging technique that allows for in vivo quantification of biochemical and physiological processes in the brain. Examples of targets in the brain that can be imaged using PET are dopamine receptors and the translocator protein 18kDa (TSPO). LÄS MER

  7. 25. Optimization of Geometric Robustness of Aero Structures in Early Design Phases

    Författare :Anders Forslund; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Geometry Assurance; Uncertainty Quantification; Robust Design; Simulation; Geometric Variation;

    Sammanfattning : Every manufactured product is different. This variation can be detrimental to quality and product functionality. In an aerospace context, this variation may even result in serious threats to the safety and reliability of aircraft. However, it is not the variation itself that is harmful, but the effects it has on functionality. LÄS MER