Sökning: "proper function"

Visar resultat 11 - 15 av 395 avhandlingar innehållade orden proper function.

  1. 11. Noise Applications in Light Water Reactors with Traveling Perturbations

    Författare :Victor Dykin; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Green s function technique; transit times; decay ratio; cross-correlation function; void fraction; global and regional instabilities; propagating density perturbation; BWR stability; reduced order models; non-white driving force; local component; Monte Carlo; space-dependent neutron noise; density wave oscillations;

    Sammanfattning : Neutron noise induced by perturbations traveling with the coolant of light water reactors (LWRs) is investigated. Different methods to simulate the effect of propagating perturbations are considered. The studies are performed in both open- and closed-loop systems and summarized in three chapters. LÄS MER

  3. 12. Angiogenic growth factors : mechanism of action and function in vascular development

    Författare :Charlotte Rolny; Andrius Kazlauskas; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Molecular medicine; PDGF-BB; VEGF; angiogenesis; hypoxia; migration; heparin; Molekylärmedicin; Molecular medicine genetics and pathology ; Molekylär medicin genetik och patologi ; Molecular Medicine; molekylär medicin genetik och patologi ;

    Sammanfattning : The mature vascular system is composed of a network of blood vessels organized into arteries, capillaries, and veins. The vessels are composed of endothelial cells surrounded by smooth muscle cells and embedded in a specialized basement membrane. LÄS MER

  4. 13. Conserved structure-function relationships in the mediator complex

    Författare :Tomas Linder; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Transcription; Mediator; yeast;

    Sammanfattning : The Mediator complex is an essential multiprotein coregulator of RNA polymerase II (pol II)- dependent transcription in fungi and metazoans. Mediator interacts directly with both pol II and sequence-specific transcriptional regulators and thus acting as a bridge between the two. LÄS MER

  5. 14. Regulation of GRAF1 membrane sculpting function during cell movement

    Författare :Monika K. Francis; Richard Lundmark; Pekka Lappalainen; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Endocytosis; migration; polarisation; tension; CLIC GEEC; GRAF1; Rho GTPase; Cdc42; Rab8; medicinsk biokemi; Medical Biochemistry;

    Sammanfattning : All eukaryotic cells rely on endocytic events to satisfy a constant need for nutrient and fluid uptake from their surroundings. Endocytosis-dependent turnover of cell surface constituents also serves to control signal transduction and establish morphological changes in response to extracellular stimuli. LÄS MER

  7. 15. Novel Insights into Haematopoietic Stem Cell Regulation and Function

    Författare :Sarah Warsi; Avdelningen för molekylärmedicin och genterapi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Haematopoiesis; Haematopoietic stem cell; Stem cell regulation; Haematopoietic stem cell transplantation;

    Sammanfattning : The haematopoietic stem cell (HSC) is a somatic stem cell essential for life long haematopoiesis; HSCs have the capability to differentiate into all mature types of blood cells and can also undergo self-renewal to maintain their own numbers. They also have the potential to reconstitute a complete haematopoietic system following HSC transplantation, also known as bone marrow transplantation, which is used to treat many haematopoietic disorders. LÄS MER