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Visar resultat 1 - 5 av 66 avhandlingar som matchar ovanstående sökkriterier.
1. Stress of conscience and burnout among healthcare personnel working in residential care of older people
Sammanfattning : Background This thesis was part of the research programme ‘Stress of Conscience and Burnout among Healthcare Personnel in Elderly Care’ at Umeå University. Relationships have been found between stress of conscience, perception of conscience, burnout, and social support. LÄS MER
2. Prioritet och avtal : Intercreditoravtal i svensk rätt, särskilt vid insolvens
Sammanfattning : An intercreditor agreement is a contract between two or more creditors in relation to a common debtor. It regulates, among other things, the priority of payment and the distribution of proceeds from the enforcement of security. LÄS MER
3. fMRI for mapping the plastic somatotopy of primary somatosensory cortex - Development and clinical applications
Sammanfattning : Functional magnetic resonance imaging (fMRI) is a widely used tool for studying brain function in vivo. The technique is based on acquiring brain images sensitive to the physiological response following neural activation, and hence, allows brain activity to be examined and documented. LÄS MER
4. Theoretical studies of blue copper proteins
Sammanfattning : In this thesis, a critical investigation is presented about the role of mechanical strain for the electron-transfer properties of the blue copper proteins. It has been found that the structure of a realistic model complex of the oxidised blue-copper active site, optimised in vacuum with the B3LYP method, has the same trigonal cupric geometry as in the protein. LÄS MER
5. Theoretical studies of porphyrin proteins
Sammanfattning : Different aspects of porphyrin proteins have been studied with theoretical methods. For example, we have studied: - The importance of hydrogen bonds for the discrimination between carbon monoxide and molecular oxygen by myoglobin, the oxygen carrier in muscles, modelling the active site both in vacuum and in the protein matrix - The inner-sphere reorganisation energy during electron transfer for cytochromes compared to other electron-transfer proteins, such as blue copper proteins and Fe-S clusters - The role of porphyrin distortions in the reaction mechanism of ferrochelatase, the enzyme that inserts an iron ion into protoporphyrin IX to make haem - The interaction between different metal sites in ferrochelatase In these studies we have used density functional theory, classical force field methods, and a combination of quantum chemistry and molecular mechanics. LÄS MER
