Sökning: "recombination"

Visar resultat 1 - 5 av 528 avhandlingar innehållade ordet recombination.

  1. 1. Ion recombination in liquid ionization chambers : development of an experimental method to quantify general recombination

    Författare :Jonas Andersson; Heikki Tölli; Lennart Johansson; Anders Ahnesjö; Umeå universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; NATURVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; NATURAL SCIENCES; MEDICAL AND HEALTH SCIENCES; General recombination; initial recombination; liquid ionization chamber; radiation dosimetry; radiofysik; radiation physics;

    Sammanfattning : An experimental method (the two-dose-rate method) for the correction of general recombination losses in liquid ionization chambers has been developed and employed in experiments with different liquids and radiation qualities. The method is based on a disassociation of initial and general recombination, since an ionized liquid is simultaneously affected by both of these processes. LÄS MER

  2. 2. Theoretical studies of chemical dynamics on excited states, driven by non-adiabatic effects : Charge recombination reactions

    Författare :Sifiso Musa Nkambule; Åsa Larson; Adam Kirrander; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Mutual neutralization; Dissociative recombination; electronic structure; non-adiabatic; teoretisk fysik; Theoretical Physics;

    Sammanfattning : This thesis is based on theoretical studies of molecular collisions occurring at relatively low to intermediate collision energies. The collisions are called dissociative recombination (DR) and mutual neutralization (MN). LÄS MER

  3. 3. Meiotic Recombination in Human and Dog : Targets, Consequences and Implications for Genome Evolution

    Författare :Jonas Berglund; Matthew Webster; Kerstin Lindblad-Toh; Leif Andersson; Nadia Singh; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; recombination; biased gene conversion; CpG island; copy number variation; substitutions; methylation; Bioinformatics; Bioinformatik; Biology with specialization in Evolutionary Genetics; Biologi med inriktning mot evolutionär genetik; Biologi med inriktning mot molekylär evolution; Biology with specialization in Molecular Evolution; Molekylär genetik; Molecular Genetics;

    Sammanfattning : Understanding the mechanism of recombination has important implications for genome evolution and genomic variability. The work presented in this thesis studies the properties of recombination by investigating the effects it has on genome evolution in humans and dogs. LÄS MER

  4. 4. Chromosome synapsis and recombination in yeast meiosis

    Författare :Hasanuzzaman Bhuiyan; Karin Schmekel; Harry Scherthan; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; meiosis; recombination; synapsis; yeast; Molecular biology; Molekylärbiologi;

    Sammanfattning : Meiosis is a cell division process that produces haploid gametes from diploid cells. Several important meiotic events take place during prophase of meiosis I, most important being homologous chromosome pairing, meiotic recombination and formation of the synaptonemal complex (SC). LÄS MER

  5. 5. Site-Specific Recombination : Integrases, Accessory Factors and DNA Targets of P2-like Coliphages

    Författare :Lina Sylwan; Elisabeth Haggård-Ljungquist; Margaret C. M. Smith; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Genetics; Genetik; molekylärgenetik; Molecular Genetics;

    Sammanfattning : The temperate coliphage P2 and its family members integrate their genomes into the host Escherichia coli chromosome by a site-specific recombination mechanism to form lysogeny. Integration takes place between the complex phage attP site and the simple bacterial attB site and is catalyzed by the phage encoded integrase (Int). LÄS MER