Sökning: "födan"

Visar resultat 1 - 5 av 52 avhandlingar innehållade ordet födan.

  1. 1. Regulation of the exocrine pancreas in growing pigs, with special emphasis on entero-pancreatic reflexes

    Författare :Lena Evilevitch; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; kidney bean lectin; Animal physiology; Djurfysiologi; duodenum; entero-pancreatic reflex; insulin; lipas; amylas; trypsin; weaning; development; maturation; inhibition; CCK-receptors; Exocrine pancreas; CCK; pig;

    Sammanfattning : The regulation of the exocrine pancreas has been under thorough investigation for many decades. In rats, cholecystokinin (CCK) is considered to be the major gut hormone stimulating the pancreas to releasing the digestive enzymes. LÄS MER

  3. 2. Developmental and methodological aspects of intestinal and pancreatic function in pigs and rats

    Författare :Klas Rådberg; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; macromolecule; endocytosis; FITC-dextran; secretion; mucosa; CCK; pancreas; disaccharidase; intestinal permeability; lectin; morphometry; Animal physiology; Djurfysiologi;

    Sammanfattning : The gastrointestinal tract has two opposing functions; to effectively absorb nutrients and to act as a safety barrier against hazardous substances in the environment. After birth these functions develops gradually. LÄS MER

  4. 3. The role of exocrine pancreas for feed intake and growth. Studies in a model with exocrine pancreatic insufficient young pigs

    Författare :Olexandr Fedkiv; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; exocrine pancreatic insufficiency; pigs; pancreatic duct ligation; adaptation;

    Sammanfattning : Exocrine pancreatic insufficiency (EPI), resulting from disease (e.g. cystic fibrosis, chronic pancreatitis) or surgery (e.g. LÄS MER

  5. 4. Exploring the Possibilities of 14C Bomb-Pulse Dating of Human Tissue Samples

    Författare :Elisavet Georgiadou; Kärnfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; 14C measurements; Bomb-pulse dating; human body; serum; plaque; Fysicumarkivet A:2014:Georgiadou;

    Sammanfattning : The testing of nuclear weapons in the atmosphere, in the middle of the 20'h century, resulted in a bomb-pulse excess of atmospheric 14C. A bomb-pulse dating method was thus developed. The latter is a method to determine the time of formation of formerly living modern (i.e. LÄS MER

  7. 5. Effects of toxin-producing phytoplankton on copepods: feeding, reproduction and implications to the fate of toxins

    Författare :Betina Kozlowsky-Suzuki; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Ecology; Ekologi; GSH transferase; oocyte development; fate of toxins; toxin accumulation; toxic phytoplankton; copepods;

    Sammanfattning : Phytoplankton growth and loss rates are governed by several factors and in many cases, when growth control fails, algal blooms are established. Such blooms can be formed by different phytoplankton species and some of them have harmful impacts on marine ecosystems. LÄS MER