Search for dissertations about: "AAR"

Showing result 1 - 5 of 6 swedish dissertations containing the word AAR.

  2. 1. Characterization of Amino Acid Transporters : Transporters expressed in the central nervous system belonging to the Solute Carrier family SLC38

    Author : Sofie Victoria Hellsten; Robert Fredriksson; Gether Ulrik; Uppsala universitet; []
    Keywords : Solute carriers; amino acid transporter; SLC38 family; SLC38A8; SNAT8; SLC38A10; SNAT10; SLC38A9; SNAT9; amino acid starvation; AAR; mTORC1; Neuroscience; Neurovetenskap;

    Abstract : In cells and organelles transporters are responsible for translocation of amino acids, sugars and nucleotides among others. In the central nervous system (CNS), amino acid transporters can function as neurotransmitter transporters and nutrient sensors. READ MORE

  4. 2. Multi-Spacecraft Observations of the Auroral Acceleration Region

    Author : Soheil Sadeghi; Göran T. Marklund; Andris Vaivads; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : The two major agents for producing aurora are generally believed to be the quasi-static parallel electric fields, accelerating electrons in the auroral acceleration region (AAR), and Alfvén waves. The Cluster spacecraft quartet has made multi-spacecraft measurements in the AAR possible for the first time. READ MORE

  5. 3. Cardioprotective treatment strategies

    Author : Jesper vanderPals; Kardiologi; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; ADC-1004; apyrase; Cardioprotection; ischemia reperfusion; hypothermia; t-PA;

    Abstract : In myocardial ischemia-reperfusion (I/R) injury, complement activation, tissue plasminogen activator (t-PA) and extracellular adenosine triphosphate (ATP) release contribute to myocardial injury. ATP is degraded into adenosine by the enzyme apyrase, and adenosine possesses cardioprotective properties. READ MORE

  6. 4. Cluster in situ studies of the auroral acceleration region

    Author : Bin Li; Göran Marklund; Stein Haaland; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Cluster; Aurora acceleration region; Physics; Fysik;

    Abstract : This thesis addresses a central topic in auroral physics, namely particle accelerationproducing intense aurora as well as energetic plasma outflow. Cluster satellitemeasurements of electric and magnetic fields, electrons and ions, collected across auroralfield lines, are used to study various aspects of the quasi-static auroral accelerationregion (AAR), its relation to the auroral density cavity, and the relative role of quasistaticand Alfvénic acceleration for producing aurora. READ MORE

  7. 5. A study of the track degradation process related to changes in railway traffic

    Author : Dan Larsson; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Drift och underhållsteknik; Operation and Maintenance;

    Abstract : This licentiate thesis presents the results of a research project concerning railroad maintenance. After acquiring the state-of-the-art knowledge in relevant areas a prediction model for railroad track degradation has been developed. The model is named DeCoTrack (Degradation Cost Of Track). READ MORE