Search for dissertations about: "Mats Andersson"

Showing result 11 - 15 of 72 swedish dissertations containing the words Mats Andersson.

  2. 11. Determination of the structures of three bacterial polysaccharides and synthesis and use of new spacers for glycoconjugate formation

    Author : Mats Andersson; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : The first part of this work describes studies on the structures of three bacterial polysaccharides, i.e., the extracellular polysaccharides of Streptococcus pneumoniae type 2 and Butyrivibrio fibrisolvens strain X6C61 and the O-antigenic side-chain of the lipopolysaccharide of Escherichia coli 086. READ MORE

  4. 12. Empirical Essays on Railway Infrastructure Costs in Sweden

    Author : Mats Andersson; Lars-Göran Mattsson; John Preston; KTH; []
    Keywords : Railways; Infrastructure; Marginal Costs; Maintenance; Renewal; Econometrics; Panel Data; Survival Analysis; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP;

    Abstract : The subject of this thesis concerns pricing the use of transport infrastructure. We are empirically investigating the relationship between railway traffic volumes and infrastructure management costs. More specifically, we are interested in estimating the change in infrastructure management costs from marginal variations in traffic volumes, i.e. READ MORE

  5. 13. Metal Cluster Reactivity. Adsorption of small molecules in biomolecular collisions

    Author : Mats Andersson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; O2; CO; ionization potential; Con; Fen; NO; sticking probability; laser ionization; D2; Wn; Cun; Rhn; reaction probability; cluster; jellium model; Nbn; metal cluster reactivity; N2; time-of-flight mass spectrometry; Nin;

    Abstract : Metal clusters can be characterized as the tiniest possible metal particles, containing only an easily counted number of atoms. In this work, reactions between metal clusters and diatomic molecules have been investigated. We have constructed an experimental set-up to produce and detect clusters, and to investigate their chemical reactivity. READ MORE

  6. 14. Radiological evaluation of esophageal function in dysphagia with special emphasis on achalasia

    Author : Mats Andersson; Göteborgs universitet; []
    Keywords : Achalasia; Dysphagia; Radiography; Barium esophagogram; Reproducibility of findings; Observer variation; Laparoscopic myotomy; Balloon dilatation; Esophageal neoplasms;

    Abstract : In idiopathic achalasia, degeneration of the inhibitory innervation of the esophageal smooth muscle results in absence of primary peristalsis and in incomplete relaxation of the lower esophageal sphincter (LES). All treatments for achalasia aim at reducing the pressure gradient across the LES, thus facilitating esophageal emptying by gravity. READ MORE

  7. 15. Synthesis and Properties of Substituted Poly(thiophenes)

    Author : Mats Andersson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : The aim of this work was to synthesize new substituted poly(thiophenes) with certain desired properties. Soluble and meltable poly(thiophenes) can be prepared if a long alkyl side-chain is attached to each thiophene ring along the polymer backbone. Such polymers show electrical conductivity when they are doped (oxidised). READ MORE