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Contrast-Enhanced Magnetic Resonance Angiography - Development and optimization of techniques for paramagnetic and hyperpolarized contrast media

Contrast-enhanced magnetic resonance angiography (CE-MRA) is a diagnostic method for imaging of vascular structures based on nuclear magnetic resonance. Vascular enhancement is achieved by injection of a contrast medium (CM). Studies were performed using two different types of CM: conventional paramagnetic CM, and a new type of CM based on hyperpolarized (HP) nuclei. The effects of varying CM con

Upplysningens självreflexion : Aspekter av Theodor W. Adornos kritiska teori

This dissertation consists of a collection of previously published or otherwise presented essays dealing with the philosophical, sociological and aesthetic writings of Theodor W. Adorno (1903-1969). The title of the dissertation is intended to cover a common programmatic theme running through Adorno's writings. Chapter one, ?Adorno and the Frankfurt school?, deals with the biography of Adorno and

Cleaning of ultra-high temperature milk fouling -Structural and compositionl changes

Fouling is the deposit of proteins and minerals formed on equipment surfaces during the heat treatment of dairy products. The concentrations of the components and the structure of the fouling reflect the processing conditions used. The use of a higher processing temperature, e.g., ultra-high temperature (UHT) treatment, promotes a mineral-rich fouling. The fouling layer decreases the transfer of h

Vitreoscilla Haemoglobin - Peroxidase Activity and Metabolic Aspects

The function of non-vertebrate haemoglobins (Hbs) appears more diverse than that of vertebrate Hbs, possibly reflecting the various demands to be met among their hosts. Sharing structural features with other haem proteins/enzymes, Hbs display a qualitative overlap in activities with functions extending beyond oxygen transport/storage. When subjected to oxygen deficient conditions, the obligate ae

Social psychological barriers to a gender balanced labor market : The role of gender identity threats, friendship priorities, and perceived discrimination

Gender remains a key predictor of vocational choice. The present thesis aimed to investigate three social psychological barriers to nontraditional career choice. Study Ӏ showed that threats to gender identity may lead to more gender-typical occupational preferences among adolescents. The results suggested a unique effect of gender identity threat, as a control threat did not have the same effect.

Impulse Response Identification Applied to Estimation of Event-Related Potentials and Non-Intrusive Echo Path Analysis

This thesis consists of five parts in which problems in two fields, medical and telecommunication, have been studied. In the first part, a prediction algorithm, the Prony method, for estimation of frequencies and damping factors of sinusiods is developed for a coloured noise disturbance. The method is applied to estimating a single Event-Related Potential, sERP, and the estimation principle is ev

Exploring small heat shock protein chaperones by crosslinking mass spectrometry

Together with other molecular chaperones, small heat shock proteins are key components of the protein quality control system, which is comprised of several hundred proteins and acts to maintain proteome homeostasis in the cell. Small heat shock proteins bind unfolding proteins at an early stage, to prevent these from further unfolding and aggregating. Partially unfolded proteins are being held in

Signalling between plants and microorganisms

Plants and microbes can interact in several ways. Plants can be attacked by different types of pathogens like fungi, virus and bacteria, but can also form symbioses with fungi and bacteria. Certain common antimicrobial proteins are produced by the plants regardless of the type of microbial interaction with the plant. In this work, different factors involved in plant-microbe interactions have been

Apoptosis And Excitotoxicity In The Death of Cultured And Grafted Dopaminergic Neurones

Over the past two decades, grafting of embryonic nigral tissue has developed into a feasible therapeutic strategy for Parkinson's disease (PD). It has become apparent that the degree of restoration of dopaminergic neurotransmission by the transplanted cells is highly correlated to the symptomatic relief. However, the efficacy of the treatment is still far from optimal: More than 90% of the grafted

Nanoscale Crystal Growth: The Importance of Interfaces and Phase Boundaries Kristallväxt på Nanometer Skala: Vikten av Ytor och Gränser

Surfaces and interfaces have a special significance to nanotechnology because the surface/volume ratio of nanomaterials is larger than for bulk materials. Therefore, interfaces of nanomaterials are usually more important to the properties of nanomaterials than for larger scale materials. Furthermore, crystal growth occurs at the interfaces between the growing crystals and the supply media. An unde

Application of the SASW-technique in geotechnical in-situ testing

With the main aim to test the applicability of the surface wave seismic technique Spectral Analysis of Surface Waves (SASW), used for determination of the shear stiffness (shear modulus - Gmax), four areas of applications have been studied. The four areas have been sites with natural geological conditions, sites where non destructive testing is necessary, pavement testing and multichannel testing.

Classes of DNA associated with telomeres in the chironomids C. pallidivittatus and C. tentans

Telomeres in Chironomus consist of long complex tandem DNA repeats, which in C. pallidivittatus have been shown to extend to the extreme end of chromosomes. In C. pallidivittatus the telomeric repeats are present in large blocks, 50-200kb in size, most of them belonging to four major subfamilies. The main issue of this thesis has been to elucidate possible functional roles for these different subf

Synergies, Stalemates and Social Dilemmas : Governance in South Africa in Comparative Perspective

This thesis focuses on the consequences of the institutional transformations in South Africa during the 1990s with specific reference to the introduction of a mode of local governance based on the direct participation of private and civic actors in policymaking and implementation. The study also aims to contribute to theory. The approach is that public, private and civic associations are best unde

Biosynthesis of decorin and glypican glycosaminoglycan chains

Proteoglycans consist of core proteins substituted with glycosaminoglycan chains. The galactosaminoglycans (GlcUA/IdoUA-GalNAc) and the glucosaminoglycans (GlcUA/IdoUA-GlcNAc) are both initiated on the same tetrasaccharide linkage region GlcUA-Gal-Gal-Xyl-protein. The proteoglycan decorin is bound to collagen fibrils in the extracellular matrix and is substituted with a single galactosaminoglycan

Perioperative regimens for patients undergoing elective hip or knee arthroplasties.

Background: Elective knee and hip arthroplasty are common surgical procedures. Improved anaesthetic and nutritional care has the potential of increasing patient satisfaction and reducing length of hospital stay (LOS). The overall aim of this thesis was to evaluate the effect of perioperative nutrition and different anaesthetic techniques on per- and postoperative outcome after elective total hip (

Economic Analyses of Drinking Water and Sanitation in Developing Countries

This thesis focuses on different aspects of household demand, and the determinants of demand, for water and sanitation related inputs fundamental to the households' well-being, i.e. drinking water and toilet facilities. The thesis consists of five chapters, one introductory chapter and four self-contained, essentially empirical, studies. In chapter two, Women's Health Choices and the Effects on C

Quantitative assessment of myocardial infarction: On the relationship between anatomy and electrophysiology using MRI and ECG

Both presence and extent of myocardial infarction are important prognostic factors for mortality and quality of life in patients with ischemic heart disease. Thus, it is of great clinical importance to be able to diagnose and characterize myocardial infarction. One way to diagnose myocardial infarction is by using the 12-lead electrocardiogram(ECG). For estimation of infarct size and location from

The rise of the FMCG flagship stores, a qualitative study exploring the phenomenon of FMCG flagship stores

Thesis Purpose: The purpose of this study is to explore and develop an understanding of the rather unexplored phenomenon of using flagship stores in the FMCG industry. We want to explore what an FMCG flagship store is to understand why it is used in the context of strategic brand management. Moreover, we want to develop an understanding of how the brand experience might influence the consumer-bran

Female Empowerment on Instagram: A Feminist Critical Discourse Analysis of Femvertisements Communicated by SMIs

This thesis used Feminist Critical Discourse Analysis to study femvertisements communicated by Social Media Influencers on Instagram. A critical perspective was adopted to study the convergence of advertising and feminism in the context of social media. The aim of the study was to explore the prevalent discourses of female empowerment, the main component in femvertising, and how existing discourse