Sökning: "stationary phase"

Visar resultat 16 - 20 av 182 avhandlingar innehållade orden stationary phase.

  1. 16. General stress proteins: Novel function and signals for induction of stationary phase genes in E.coli

    Författare :Örjan Persson; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; general stress response; universal stress protein; sigma S; DNA damage; fructose-6-phosphate; ruvC;

    Sammanfattning : Survival during conditions when nutrients become scarce requires adaptation and expression of genes for maintenance in order for the cell to survive. Among the numerous proteins involved in adaptation and regulation under these conditions, the stationary phase sigma factor, σS, and the Universal stress proteins contribute to survival and bestow the cell with general stress protective functions during growth arrest. LÄS MER

  3. 17. Assembly and adhesive properties of curli : a stationary phase-specific surface organelle in Gram-negative enteric bacteria

    Författare :Mårten Hammar; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Escherichia colilcurli fimbriae csgstarvation;

    Sammanfattning : The natural environments of bacteria are most often characterized by suboptimal conditions for growth, e. g., limited supply of nutrients. Consequently, periods of dormancy or negligible growth are the rule rather than the exception. LÄS MER

  4. 18. On the interaction between ice sheets and the large-scale atmospheric circulation over the last glacial cycle

    Författare :Marcus Löfverström; Rodrigo Caballero; Johan Nilsson; David Battisti; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Atmospheric stationary waves; coupled atmosphere-ice sheet modelling; stationary wave-ice sheet interactions; atmosfärvetenskap och oceanografi; Atmospheric Sciences and Oceanography;

    Sammanfattning : The last glacial cycle (c. 115-12 kyr BP) was the most recent in a series of recurring glaciations of the subpolar continents. Massive ice sheets evolved in Eurasia and North America, which, at their maximum, were of continental scale and together lowered the global sea-level by approximately 100 m. LÄS MER

  5. 19. The Finite Difference Methods for Multi-phase Free Boundary Problems

    Författare :Avetik Arakelyan; Henrik Shahgholian; John W. Barrett; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; MATHEMATICS; MATEMATIK;

    Sammanfattning : This thesis consist of an introduction and four research papers concerning numerical analysis for a certain class of free boundary problems. Paper I is devoted to the numerical analysis of the so-called two-phase membrane problem. Projected Gauss-Seidel method is constructed. LÄS MER

  7. 20. Functional Profiling Of Metabolic Regulation In Marine Bacteria

    Författare :Saraladevi Muthusamy; Jarone Pinhassi; Torsten Thomas; Sarala Devi Muthusamy; Institutionen för biologi och miljö (BOM) Linnéuniversitetet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; marine microbiology; physiology; heterotrophic bacteria; adaptive strategies; survival; proteomics; growth phase; proteorhodopsin; inorganic sulphur oxidation; anaplerotic CO2 fixation; Miljövetenskap; Environmental Science;

    Sammanfattning : Oceans are powered by active, metabolically diverse microorganisms, which are important in regulating biogeochemical cycles on Earth. Most of the ocean surface is often limited by nutrients, influencing bacterial growth and activities. LÄS MER