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Visar resultat 1 - 5 av 28 avhandlingar som matchar ovanstående sökkriterier.
1. Calibration of Ionization Chambers for Measuring Air Kerma Integrated over Beam Area in Diagnostic Radiology
Sammanfattning : The air kerma area product PKA is an important quantity used by hospital physicists in quality assurance and optimization processes in diagnostic radiology and is recommended by national authorities for setting of diagnostic reference levels. PKA can be measured using a transmission ionization chamber (kerma area product (KAP) meter) mounted on the collimator housing. LÄS MER
2. Protein Interactions: Electrostatics and Ligand Binding
Sammanfattning : This thesis deals with Ca2+ binding to proteins, electrostatic interactions in and between proteins as well as inter- and intramolecular interactions. A computer program was developed to determine Ca2+ binding constants from experimental titration data of proteins. LÄS MER
3. Perplexing Protein Puzzles
Sammanfattning : Protein structure and stability are inherent in the amino acid sequence and governed by non-covalent interactions. The cooperation between forces is, however, perplexing and not well understood. In order to elucidate and predict protein folding and stability, detailed studies of non-covalent interactions are required. LÄS MER
4. Challenges in Computational Biochemistry: Solvation and Ligand Binding
Sammanfattning : Accurate calculations of free energies for molecular association and solvation are important for the understanding of biochemical processes, and are useful in many pharmaceutical applications. In this thesis, molecular dynamics (MD) simulations are used to calculate thermodynamic properties for solvation and ligand binding. LÄS MER
5. Cyclic nucleotide signalling in Alzheimer's disease postmortem brain
Sammanfattning : The aim of this study was to determine the nature and significance of altered guanylyl cyclase (GC) and adenylyl cyclase (AC) signalling in Alzheimer's disease (AD) postmortem brain. Paper I describes a study of particulate and soluble GC activities in postmortem temporal cortex from a series of AD and matched control subjects. LÄS MER