Sökning: "tubular dimensions"

Visar resultat 1 - 5 av 6 avhandlingar innehållade orden tubular dimensions.

  1. 1. Genetic dissection of tubulogenesis in the Drosophila trachea

    Detta är en avhandling från Stockholm : Wenner-Grens institut för experimentell biologi

    Författare :Johanna Hemphälä; Stockholms universitet.; [2005]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Drosophila; trachea; transposon mutagenesis screen; fusion; Dpp; Delta; tubular dimensions; Grainyhead; Krotzkopf verkehrt; intralumenal matrix; NATURAL SCIENCES Biology Organism biology Developmental biology; NATURVETENSKAP Biologi Organismbiologi Utvecklingsbiologi;

    Sammanfattning : The formation of branched tubular organs, such as the mammalian lung kidney and vascular system, is an essential process in animal development. The Drosophila tracheal (respiratory) system provides a genetic model system to study the highly ordered process of branch outgrowth and fusion required to form continuous tubular networks. LÄS MER

  2. 2. Engineering the shape of bacterial cellulose and its use as blood vessel replacement

    Detta är en avhandling från Stockholm : Wenner-Grens institut för experimentell biologi

    Författare :Henrik Bäckdahl; [2008]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; tissue engineering.; smooth muscle cells; bacterial cellulose; scaffold design; tubular fermentation; biocompatibility evaluation; Blood vessel; vascular graft;

    Sammanfattning : Tissue loss and organ failure are major health problems that impose great costs on society. Cardiovascular diseases are responsible for 36% of mortalities and the disease burden among adults over the age of 60. The single largest cardiovascular disease is atherosclerosis in the coronary artery. LÄS MER

  3. 3. Genetic and molecular regulation of epithelial tube morphogenesis

    Detta är en avhandling från Stockholm : Wenner-Grens institut för experimentell biologi

    Författare :Anna Tonning; Göteborgs universitet.; Gothenburg University.; [2006]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; epithelial tube morphogenesis; trachea; Drosophila; chitin; chitin synthase; apical extracellular matrix; paracellular diffusion barrier; tube expansion; septate junctions;

    Sammanfattning : Networks of epithelial tubes, such as the vertebrate lung, kidney and vascular system, enable transport of gases and nutrients to all tissues in the body. These tubes are built up by a single layer of polarized epithelial cells, with the apical membrane facing the lumen. LÄS MER

  4. 4. Nanowire Heterostructures- Growth, Characterization and Optical Physics

    Detta är en avhandling från Solid State Physics, Lund University

    Författare :Niklas Sköld; Lunds universitet.; Lund University.; [2008]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; nano; Nanowire; photoluminescence; epitaxy; quantum dot;

    Sammanfattning : This thesis describes growth, processing, characterization and photoluminescence (PL) spectroscopy of nanowire heterostructures. The nanowires were made of III-V semiconductor materials and were produced by Au-particle assisted growth. LÄS MER

  5. 5. New Techniques for Chiral Separations

    Detta är en avhandling från Karlstad : Karlstads universitet

    Författare :Jeanette Olsson; Karlstads universitet.; [2008]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; analytical chemistry; chiral separation; GC; CE; CEC; NATURAL SCIENCES Chemistry Analytical chemistry; NATURVETENSKAP Kemi Analytisk kemi; Kemi; Chemistry;

    Sammanfattning : Gas chromatography (GC) has been utilized for the study of enantiomer resolution of the atropisomers of PCBs, o,p´-DDD and o,p´-DDT. Different substituents and concentrations of cyclodextrin, capillary dimensions and type of stationary phase films have been investigated to achieve the resolution of as many of the atropisomers on one column as possible. LÄS MER