Search for dissertations about: "environment microbiology"

Showing result 21 - 25 of 104 swedish dissertations containing the words environment microbiology.

  2. 21. The influence of soil structure on microbial processes in microfluidic models

    Author : Carlos Arellano; MEMEG; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : The way microbes behave in nature can vary widely depending on the spatial characteristics of the habitats they are located in. The spatial structure of the microbial environment can determine whether and to which extent processes such as organic matter degradation, and synergistic or antagonistic microbial processes occur. READ MORE

  4. 22. Brain Aromatase in the guppy, Poecilia reticulata : Distribution, control and role in behaviour

    Author : Stefan Hallgren; Håkan Olsén; Bertil Borg; Julie Bakker; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Oestrogen production; behaviour; anatomy; endocrinology; bio markers; endocrine disruption; Organism biology; Organismbiologi; funktionell morfologi; Functional Zoomorphology; Biology;

    Abstract : Oestrogens are produced by aromatisation of androgens by the aromatase enzyme. In the vertebrate brain this synthesis has vital functions in nerve protection, cell proliferation and nerve development during injury respectively brain development. READ MORE

  5. 23. Influence of host and bacterial factors during Neisseria meningitidis colonization

    Author : Sara Sigurlásdóttir; Ann-Beth Jonsson; Ute Römling; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Neisseria meningitidis; Colonization; Host-bacteria interactions; Lactate; Biofilms; Polynucleotide phosphorylase; molekylär biovetenskap; Molecular Bioscience;

    Abstract : The human-restricted pathogen Neisseria meningitidis is a major cause of bacterial meningitis and sepsis worldwide. Colonization of the mucosal layer in the upper respiratory tract is essential to establish an asymptomatic carrier state and invasive disease. N. READ MORE

  6. 24. Drivers of soil fungal communities in boreal forests : feedbacks on soil fertility and decomposition

    Author : Erica Sterkenburg; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Abstract : Boreal forests harbour diverse fungal communities with decisive roles in decomposition and plant nutrition. Difficulties in studying soil fungi have limited knowledge about how fungal communities are shaped. READ MORE

  7. 25. Role of lactobacilli in Helicobacter pylori pathogenesis and host cell responses

    Author : Hanna Gebreegziabher Gebremariam; Ann-Beth Jonsson; Keira Melican; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Helicobacter pylori; Inflammation; Lactobacillus; ADAM17; Proinflammatory cytokines; Lactate; molekylär biovetenskap; Molecular Bioscience;

    Abstract : Helicobacter pylori is well adapted to the harsh environment of the human stomach, allowing it to persistently colonize the gastric mucosa of at least 50% of the global population for decades. Long-term colonization induces chronic inflammation that can eventually lead to development of peptic ulcer and gastric cancer. READ MORE