Sökning: "Pool drying"

Hittade 5 avhandlingar innehållade orden Pool drying.

  1. 1. Phenotypic plasticity and local adaptation in island populations of Rana temporaria

    Detta är en avhandling från Umeå : Department of Ecology & Environmental Science, Umeå University

    Författare :Martin Lind; Frank Johansson; Juha Merilä; [2009]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Costs of plasticity; Developmental threshold; FST; Local adaptation; Phenotypic plasticity; Pool drying; QST; NATURAL SCIENCES Biology Terrestrial; freshwater and marine ecology Freshwater ecology; NATURVETENSKAP Biologi Terrestrisk; limnisk och marin ekologi Limnisk ekologi; zooekologi; Animal Ecology;

    Sammanfattning : Phenotypic plasticity is the ability of a genotype to express different phenotypes in different environments. Despite its common occurrence, few have investigated differences in plasticity between populations, the selection pressures responsible for it, and costs and constraints associated with it. LÄS MER

  2. 2. Soil salinity as a driver of microbial community structure and functioning

    Detta är en avhandling från Lund University, Faculty of Science, Centre for Environmental and Climate Research (CEC)

    Författare :Kristin Rath; [2017-12]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Soil salinization; Soil Microbiology; soil microbial community; Bacteria; Aerobic; Fungi; Drying-rewetting; Microbial growth; Microbial biomass; Soil respiration; salinity tolerance; Saline soils; Salinity gradient;

    Sammanfattning : Soil salinization is a pressing agricultural problem in many areas of the world, particularly in areas heavily reliant on irrigation agriculture. While the negative effects of salinity on crop plants have been widely studied, its effects on soil microorganisms have received less attention, and the impact of soil salinity on both microbial community structure and functioning is not well understood. LÄS MER

  3. 3. Physiology of Industrially Relevant Bacteria: Freeze-drying tolerance of Lactobacillus reuteri and Pseudomonas chlororaphis and product formation of Lactococcus lactis metabolizing maltose

    Detta är en avhandling från Applied Microbiology (LTH)

    Författare :Johan Palmfeldt; [2004]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; virologi; mykologi; Microbiology; bacteriology; virology; mycology; bakteriologi; Mikrobiologi;

    Sammanfattning : When the metabolic activity of bacteria is exploited by the food and biotechnology industries, freeze-drying is commonly used to produce concentrated bacterial cultures with enhanced storage stability. The freeze-drying tolerance of the probiotic strain Lactobacillus reuteri and the biocontrol agent Pseudomonas chlororaphis has been characterized in this work. LÄS MER

  4. 4. The open absorption system : energy savings in different applications

    Detta är en avhandling från Luleå : Luleå tekniska universitet

    Författare :Lars Johansson; [2001]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Energy Engineering; Energiteknik;

    Sammanfattning : The open absorption system is a technique that makes it possible to recover energy in different processes using moist air. In most applications the latent heat in moist air is difficult to recover because of the low temperature. Processes using outdoor air to carry away moisture therefore have high energy demands. LÄS MER

  5. 5. Content and Distribution of Short-Chain Fatty Acids in the Hindgut of Rats Fed Various Sources of Indigestible Carbohydrates

    Detta är en avhandling från [email protected]

    Författare :Åsa Henningsson; [2002]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; rats; red kidney beans; Nutrition; Näringslära; oligosaccharides; non-starch polysaccharides; resistant starch; dietary fibres; indigestible carbohydrates; short-chain fatty acids; fermentation;

    Sammanfattning : There is increasing evidence that short-chain fatty acids (SCFA) formed by colonic fermentation of indigestible carbohydrates have beneficial physiological effects. Butyric acid is the main energy substrate for the colonic mucosa and has been implicated as important in the prevention and treatment of diseases of the colonic mucosa, such as distal ulcerative colitis and cancer. LÄS MER