Search for dissertations about: "NATURAL SCIENCES Biology Organism biology Microbiology"

Showing result 1 - 5 of 58 swedish dissertations containing the words NATURAL SCIENCES Biology Organism biology Microbiology.

  1. 1. Evolutionary Dynamics of Mutation and Gene Transfer in Bacteria

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Peter A Lind; Uppsala universitet.; [2010]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; fitness cost; bacterial evolution; gene amplification; mutational biases; GC content; synonymous substitutions; horizontal gene transfer; experimental evolution; MEDICINE Microbiology; immunology; infectious diseases Microbiology Bacteriology; MEDICIN Mikrobiologi; immunologi; infektionssjukdomar Mikrobiologi Bakteriologi; NATURAL SCIENCES Biology Organism biology Microbiology; NATURVETENSKAP Biologi Organismbiologi Mikrobiologi; NATURAL SCIENCES Biology Cell and molecular biology Genetics; NATURVETENSKAP Biologi Cell- och molekylärbiologi Genetik; NATURAL SCIENCES Biology; NATURVETENSKAP Biologi; Mikrobiologi; Microbiology;

    Abstract : The study of bacterial evolution is fundamental for addressing current problems of antibiotic resistance and emerging infectious diseases and lays a solid foundation for successful and rational design in biotechnology and synthetic biology. The main aim of this thesis is to test evolutionary hypotheses, largely based on theoretical considerations and sequence analysis, by designing scenarios in a laboratory setting to obtain experimental data. READ MORE

  2. 2. Surviving the ratchet Modelling deleterious mutations in asexual populations

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Jonas Söderberg; Uppsala universitet.; [2011]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Theoretical biology; Population genetics; Stochastic modelling; Genome evolution; Muller s Ratchet; NATURAL SCIENCES Biology Cell and molecular biology Genetics; NATURVETENSKAP Biologi Cell- och molekylärbiologi Genetik; NATURAL SCIENCES Biology Organism biology; NATURVETENSKAP Biologi Organismbiologi; NATURAL SCIENCES Biology; NATURVETENSKAP Biologi; Biologi med inriktning mot molekylär evolution; Biology with specialization in Molecular Evolution;

    Abstract : One of the most unforgiving processes in nature is that of Muller's ratchet, a seemingly irreversible accumulation of deleterious mutations that all organisms have to deal with or face extinction. The most obvious way to avoid fitness collapse is recombination, though asexual populations usually do not have the luxury of recombining freely. READ MORE

  3. 3. Cyanobacterial Hydrogen Metabolism Regulation and Maturation of Hydrogenases

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Ellenor Devine; Uppsala universitet.; [2011]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; cyanobacteria; hydrogenase; hydrogenase specific protease; maturation; regulation; transcriptional studies; hupW; hoxW; hyp; NtcA; CalA; NATURAL SCIENCES Biology; NATURVETENSKAP Biologi; NATURAL SCIENCES Chemistry Biochemistry Molecular biology; NATURVETENSKAP Kemi Biokemi Molekylärbiologi; NATURAL SCIENCES Biology Organism biology Microbiology; NATURVETENSKAP Biologi Organismbiologi Mikrobiologi; Chemistry with specialization in Microbial Chemistry; Kemi med inriktning mot mikrobiell kemi;

    Abstract : In times with elevated CO2 levels and global warming there is a need of finding alternatives to carbon based energy carriers. One such environmental friendly solution could be H2 produced by living organisms. READ MORE

  4. 4. Host-Pathogen Responses during Giardia infections

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Emma Ringqvist; Uppsala universitet.; [2009]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Giardia; parasite infection; host-parasite releationship; immune activation; virulence factor; immune evasion; NATURAL SCIENCES Biology Cell and molecular biology; NATURVETENSKAP Biologi Cell- och molekylärbiologi; NATURAL SCIENCES Biology Organism biology Microbiology; NATURVETENSKAP Biologi Organismbiologi Mikrobiologi; mikrobiologi; Microbiology;

    Abstract : Giardia lamblia is a eukaryotic parasite of the upper small intestine of humans and animals. The infecting trophozoite cells do not invade the epithelium lining of the intestine, but attach to the brush border surface in the intestinal lumen. The giardiasis disease in humans is highly variable. READ MORE

  5. 5. Hematological changes arising from spleen contraction during apnea and altitude in humans

    University dissertation from Östersund : Mid Sweden University

    Author : Matt X. Richardson; Mittuniversitetet.; [2008]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Hypoxia; hypercapnia; hemoglobin; hematocrit; breath-hold diving; NATURAL SCIENCES Biology Organism biology; NATURVETENSKAP Biologi Organismbiologi; INTERDISCIPLINARY RESEARCH AREAS Sports; TVÄRVETENSKAPLIGA FORSKNINGSOMRÅDEN Idrott; MEDICINE Physiology and pharmacology Physiology; MEDICIN Fysiologi och farmakologi Fysiologi;

    Abstract : .... READ MORE