Search for dissertations about: "CEM"

Showing result 16 - 20 of 24 swedish dissertations containing the word CEM.

  2. 16. Nucleoside analog toxicity and nucleoside kinase deficiency : effects on mitochondrial DNA

    Author : Mia Bjerke; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Nucleoside analogs are modified nucleosides used in treatment of cancer and viral infections. They are dependent on intracellular phosphorylation to be pharmacologically active. Deoxyribonucleoside kinases catalyze the rate-limiting step in the phosphorylation of many clinically used nucleoside analogs. READ MORE

  4. 17. Chloride transport and chloride threshold values : studies on concretes and mortars with Portland cement and limestone blended cement

    Author : Dimitrios Boubitsas; RISE; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cement; Mortar; Concrete; Corrosion; Reinforcement; Chloride ions;

    Abstract : Reinforced concrete is one of the most widely used building materials and if it is properly designed and produced, it is an extremely durable material with a service life up to 100 years. However, under certain environmental conditions the service life of reinforced concrete structures is more limited. READ MORE

  5. 18. Chloride transport and chloride thresholdvalues-Studies on concretes and mortars with Portland cement and limestone blended cement

    Author : Dimitrios Boubitsas; Avdelningen för Byggnadsmaterial; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Concrete; cement; limestone filler; chloride ingress; chloride threshold values;

    Abstract : Reinforced concrete is one of the most widely used building materials and if it is properly designed and produced, it is an extremely durable material with a service life up to 100 years. However, under certain environmental conditions the service life of reinforced concrete structures is more limited. READ MORE

  6. 19. Identification and characterization of novel enzymes in mitochondrial and cytosolic nucleotide metabolism

    Author : Christakis Panayiotou; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Nucleotides need to be synthesized within the cells since there are no carrier proteins for them in the cell membrane and their negatively charged phosphate groups prevent diffusion across the membrane. There are two main pathways for nucleotide synthesis: the de novo pathway and the salvage pathway. READ MORE

  7. 20. Experimental Study of De-icing Salt-frost Scaling in Concrete with Low-calcium Fly Ash or Slag : Influence of Drying and Carbonation, and Air Content

    Author : Martin Strand; Avdelningen för Byggnadsmaterial; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Betong; Cement; Beständighet; Tösalt-frost avskalning; Tillsatsmaterial; Masugnsslagg; Flygaska; Concrete; Durability; De-icing salt-frost scaling; Cement based materials; Supplementary cementitious materials SCMs ; Ground granulated blast furnace slag; Low-calcium fly ash;

    Abstract : In order to reduce the net climate impact of concrete production, it is necessary for the industry to undertake several actions. Among these is to include fly ash and slag as supplementary cementitious materials. Accordingly, this project has studied concrete containing low-calcium fly ash or ground-granulated blast-furnace slag. READ MORE