Sökning: "oskar I"

Visar resultat 21 - 25 av 120 avhandlingar innehållade orden oskar I.

1. 21. Climate Related Thermal Actions for Reliable Design of Concrete Structures

   Författare :Oskar Larsson; Avdelningen för Konstruktionsteknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; thermal stress; solar radiation; FE-analysis; climate data; box-girder bridge; KstrConcrete; KstrReliability;

   Sammanfattning : When the temperature changes in the environment the temperature will also change in a structure. Complex interactions of climate factors affect the temperature changes. When the temperature is varied in a material it will expand or contract, and movements will be produced. LÄS MER

3. 22. To reduce a ribonucleotide – Radical solutions in enzymology in form and function

   Författare :Oskar Aurelius; Biokemi och Strukturbiologi; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Ribonucleotide reductase; X-ray crystallography; Small-angle X-ray scattering; nucleotide metabolism; protein biophysics; metalloproteins; anaerobic enzymology;

   Sammanfattning : It has been more than 50 years since the enzyme system ribonucleotide reductase (RNR), catalysing the reduction of ribonucleotides to deoxyribonucleotides, was first discovered. RNR was also the first time that radical chemistry was revealed in an enzyme. LÄS MER

4. 23. Fatigue of steel bridges : New structural details and the implementation of high strength steel

   Författare :Oskar Skoglund; John Leander; Raid Karoumi; Alain Nussbaumer; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; high strength steel; fatigue; steel bridges; steel and concrete composite bridges; new structural details; linear elastic fracture mechanics; effective notch stress method; nominal stress method; Structural Engineering and Bridges; Bro- och stålbyggnad;

   Sammanfattning : The use of high strength steel has the potential to reduce the amount of steel used in bridge structures and thereby facilitate a more sustainable construction. The amount of steel and what steel grade that can be used in bridge structures and other cyclic loaded structures are often limited by a material degradation process called fatigue. LÄS MER

5. 24. Apoptosis and tumor cell death pathways in response to HAMLET

   Författare :Oskar Hallgren; allergologi och palliativ medicin Lungmedicin; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Biomedicinska vetenskaper allmänt ; General biomedical sciences; Klinisk biologi; apoptosis; autophagy; alpha-lactalbumin; Clinical biology; programmed cell death; HAMLET; cell cycle;

   Sammanfattning : HAMLET (Human alpha-lactalbumin made lethal to tumor cells) is a molecular complex of alpha-lactalbumin and oleic acid, that induces programmed cells death in tumor cells but leaves healthy differentiated cells unaffected. It has a broad anti-tumor activity as more than 40 cell lines from different origin are sensitive. LÄS MER

7. 25. U-Pb geochronology of tectonothermal events related to the Rodinia and Gondwana supercontinents -observations from Antarctica and Baltica

   Författare :Oskar Paulsson; Berggrundsgeologi; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; klimatologi; pedology; climatology; Fysisk geografi; geomorfologi; marklära; kartografi; geomorphology; Physical geography; Gondwana; Rodinia; Antarctica; Baltica; Dronning Maud Land; cartography;

   Sammanfattning : This thesis presents data from two areas, Dronning Maud Land, Antarctica, and the Scandinavian Caledonides, Baltica. In addition, a comparative geochronological study is presented. The bedrock of Dronning Maud Land (DML) is dominated by migmatitic gneisses and post-tectonic intrusions. LÄS MER