Sökning: "deuterium NMR"

Visar resultat 16 - 20 av 21 avhandlingar innehållade orden deuterium NMR.

1. 16. Synthetic and Mechanistic Studies with Iodine(III) Reagents

   Författare :Ester Maria Di Tommaso; Berit Olofsson; Marcos Suero; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; hypervalent iodine chemistry; organic synthesis; mechanistic studies; DFT; photocatalysis; Organic Chemistry; organisk kemi;

   Sammanfattning : This thesis describes the development of metal-free transformations and mechanistic studies on the reactivity of two classes of hypervalent iodine reagents: diaryliodonium salts and vinylbenziodoxolones (VBX). Recently, they have been recognized as valuable synthetic reagents with broad applicability in organic synthesis. LÄS MER

3. 17. Models of NADH with C2 and D2 Symmetry

   Författare :Klas Skog; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : A novel supramolecular approach to the design of NADH models is presented in this dissertation. The models can be divided into two types, C2 symmetric and D2 symmetric macrocyclic structures. The C2 symmetric models are made from a chiral C2 symmetric unit, two dihydronicotinamide units and a phenylene spacer, to form a macrocyclic structure. LÄS MER

4. 18. MYC and MexR interactions with DNA : a Small Angle Scattering perspective

   Författare :Francesca Caporaletti; Maria Sunnerhagen; Björn Wallner; Anne Martel; Ann Terry; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : Protein-DNA complexes govern transcription, that is, the cellular mechanism that converts the information stored in the DNA into proteins. These complexes need to be highly dynamic to respond to external factors that regulate their functions in agreement with what the cells need at that time. LÄS MER

5. 19. Nuclear magnetic resonance and microcirculation: The influence of pulsatile brain-tissue motion on measurements of intravoxel incoherent motion and assessment of haemodynamics using exo- and endogenous tracers

   Författare :Ronnie Wirestam; Lund Medicinsk strålningsfysik; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; diagnostic radiology; cortical activation; diffusion; tumor; tumour; ischemic stroke; ischaemic stroke; tracer kinetics; bolus tracking; phase mapping; brain motion; intracranial dynamics; blood flow; haemodynamics; vascularity; MRS; perfusion; MRI; magnetic resonance; Clinical physics; radiology; tomography; medical instrumentation; Klinisk fysiologi; radiologi; tomografi; medicinsk instrumentering;

   Sammanfattning : In this project, the potential of magnetic resonance (MR) imaging and spectroscopy in studies of microcirculation and haemodynamics was evaluated. The spatial and temporal characteristics of human pulsatile brain-tissue movements in healthy individuals, relevant for the understanding of the cerebrospinal-fluid (CSF) circulation and the pathogenesis of hydrocephalus, were thoroughly investigated. LÄS MER

7. 20. Characterization of folding dynamics and accelerated electron transfer in proteins

   Författare :Anna Katrine Museth; Linköpings universitet; []
   Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

   Sammanfattning : The research presented in this thesis is divided in two: The first part is a study of the intracellular protein human copper zinc superoxide dismutase which has been associated with the fatale disease Amyotrophic lateral Selerosis (ALS). ALS is a progressive neurodegenerative disease of motor neurons, and in the cases where the disease is inheriled (fALS), roughly 15% is caused by mutations in human copper·zinc superoxide dismutase (CuZnSOD). LÄS MER