Search for dissertations about: "Horizontal Transfer"

Showing result 1 - 5 of 86 swedish dissertations containing the words Horizontal Transfer.

  1. 1. Horizontal gene transfer in plants - The story of PgiC2

    University dissertation from Lund University (Media-Tryck)

    Author : Pernilla Vallenback; Lund University.; Lunds universitet.; [2010]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; plant genetics; Festuca ovina; PgiC; Horizontal gene transfer;

    Abstract : Sheep's fescue, Festuca ovina, is a common grass found all over Eurasia. In populations in southern Sweden some individuals were found to have two copies of the gene for cytoplasmic phosphoglucose isomerase, PgiC. READ MORE

  2. 2. Horizontal gene transfer by uptake of apoptotic bodies

    University dissertation from Stockholm : Karolinska Institutet, Department of Oncology-Pathology

    Author : Anna Bergsmedh; Karolinska Institutet.; Karolinska Institutet.; [2003]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Horizontal gene transfer; genomic instability; apoptosis; phagocytosis;

    Abstract : In adults as well as during embryogenesis, apoptosis plays a key role in the elimination of cells in multicellular organisms. Apoptosis is important for the maintenance of tissue homeostasis. It is also of importance in tumor development, where tumor cells die by apoptosis due to low levels of oxygen and nutrients. READ MORE

  3. 3. Olfactory Transfer of Analgesic Drugs After Nasal Administration

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Ulrika Espefält Westin; Uppsala universitet.; [2007]
    Keywords : Pharmaceutics; Nasal administration; Olfactory transfer; Olfactory pathways; Central nervous system; Blood-brain barrier; Nasal respiratory mucosa; Olfactory mucosa; Olfactory bulb; Horizontal Ussing chamber; Morphine; Dihydroergotamine; Rat; Mouse; Swine; Autoradiography; Viability; Powder formulations; Galenisk farmaci;

    Abstract : Nasal administration of analgesics for achieving rapid pain relief is currently a topic of great interest. The blood-brain barrier (BBB) restricts access to the central nervous system (CNS) for several central-acting drugs, such as morphine and dihydroergotamine, which results in a substantial effect delay. READ MORE

  4. 4. 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

  5. 5. Mixture Effects in Shell-and-Tube Condensers. Theory and Calculations

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Tord Karlsson; [2004]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; shell-and-tube; heat transfer; zeotropic; condensation; mass transfer; mixture;

    Abstract : Zeotropic mixtures have come into more frequent use as working fluids (refrigerants) in heat pumps and air conditioning equipment due to the phase-out of ozone-depleting substances. Substantial drop in performance for shell-side condensation in shell-and-tube condensers when replacing a pure fluid with a mixture has been reported in the literature. READ MORE