Search for dissertations about: "gap junction"

Showing result 16 - 20 of 71 swedish dissertations containing the words gap junction.

  2. 16. Neural stem cell engraftment : functional interactions, brain repair and gap junctions

    Author : Johan Jäderstad; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Neural stem cell (NSC) engraftment therapies show increasing promise as potential cures for several of the diseases of the central nervous system. Traditionally, functional improvements after NSC engraftment have been attributed to replacement of lost neurons and astrocytes, remyelination and support of adjacent cells at risk. READ MORE

  4. 17. Fabrication Technology for Efficient High Power Silicon Carbide Bipolar Junction Transistors

    Author : Reza Ghandi; Martin Domeij; Anant Agarwal; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical engineering; electronics and photonics; Elektroteknik; elektronik och fotonik; Other engineering physics; Övrig teknisk fysik;

    Abstract : The superior characteristics of Silicon Carbide as a wide band gap semiconductor have motivated many industrial and non-industrial research groups to consider SiC for the next generations of high power semiconductor devices. The SiC Bipolar Junction Transistor (BJT) is one candidate for high power applications due to its low on-state power loss and fast switching capability. READ MORE

  5. 18. Ethanol-mediated effects on astroglial cells in primary culture. With a focus on acute changes in intracellular Ca2+, cell volume, actin filaments, and gap junction coupling

    Author : Louise Adermark; Göteborgs universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; astrocyte; BaCl2; cell swelling; fura-2; furosemide; ouabain; scrape loading; volume estimation;

    Abstract : The astroglial cells are abundant in the central nervous system (CNS), where they control and regulate the homeostasis of the extracellular milieu. A change in astroglial cell volume, mediated through activation of neuroactive substances or changes in osmolarity, leads to changes in the size and geometry of the extracellular space volume, which could affect the diffusion and concentration of neuroactive substances. READ MORE

  6. 19. Mechanistical studies on gap junctions and their role in tumour promotion : structure-activity relationships of polychlorinated biphelyls

    Author : Yvonne Bager; Karolinska Institutet; Karolinska Institutet; []
    Keywords : gap junctional intercellular communication; phosphorylation; tumour promotion; alteredhepatic foci; rat liver; potency; PCBs; TCDD.Doctoral Thesis Yvonne Bager;

    Abstract : Chemically induced carcinogenesis is a multi-stage process that can be divided into at least three major stages, initiation, promotion and progression. The promotion stage involves clonal expansion of genetically altered cells (i.e. initiated cells). READ MORE

  7. 20. Step Edge Junctions in YBa2Cu3O7-δ High-Tc Superconductors

    Author : Huai-ren Yi; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; YBa2Cu3O7-delta; barrier property; Josephson flux-flow transistor; laser deposition; electron-beam lithography; magnetron sputtering; thin film; step edge junction; amorphous carbon;

    Abstract : This thesis describes experimental work on GdBa2Cu3O7-.delta. (GBCO) thin films, YBa2Cu3O7-.delta. READ MORE