Sökning: "physiological experiments"

Visar resultat 16 - 20 av 225 avhandlingar innehållade orden physiological experiments.

  1. 16. Importance of tannins for responses of aspen to anthropogenic nitrogen enrichment

    Författare :Franziska Bandau; Benedicte Albrectsen; Michael Gundale; Lisbeth Josson; Umeå universitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; aspen; foliar condensed tannins; genetic variability; anthropogenic nitrogen enrichment; plant growth; plant defense; litter decomposition; Populus tremula; asp; kondenserade tanniner; genetisk variabilitet; antropogent kväve; tillväxt; växtförsvar; förna nedbrytning; Populus tremula; Environmental Science; miljövetenskap; ekologisk botanik; Ecological Botany; Entomology; entomologi; Physiological Botany; fysiologisk botanik; Population Biology; populationsbiologi;

    Sammanfattning : Boreal forests are often strongly nitrogen (N) limited. However, human activities are leading to increased N inputs into these ecosystems, through atmospheric N deposition and forest fertilization. LÄS MER

  3. 17. Studies of the physiological status of bacteria used for environmental applications

    Författare :Ninwe Maraha; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Today, it is difficult to study the physiological status of inoculants in complex environments, such as soil. In this thesis, we describe the combined use of marker genes and viability stains to determine the physiological status of the bacterial cells in pure cultures and in soil. LÄS MER

  4. 18. Epidermal stem cells in physiological tissue regeneration, wound healing and cancer

    Författare :Anja Füllgrabe; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : The mammalian skin is a versatile organ that protects from external harm, regulates the body temperature, and provides the touch sensation. Its epithelium, the epidermis, forms several highly regenerative structures as the hair follicle (HF), the sebaceous gland (SG), and the interfollicular epidermis (IFE). LÄS MER

  5. 19. Mechanism-Based Modeling of the Glucose-Insulin Regulation during Clinical Provocation Experiments

    Författare :Petra Jauslin-Stetina; Mats Karlsson; Nicolas Frey; Philippe Jacqmin; Uppsala universitet; []
    Nyckelord :Pharmacokinetics Pharmacotherapy; Glucose homeostasis; Type 2 diabetes; IVGTT; OGTT; Meal test; Circadian variation; Mechanism-based; NONMEM; Farmakokinetik Farmakoterapi;

    Sammanfattning : Type 2 diabetes is a complex chronic metabolic disorder characterized by hyperglycemia associated with a relative deficiency of insulin secretion and a reduced response of target tissues to insulin. Considerable efforts have been put into the development of models describing the glucose-insulin system. LÄS MER

  7. 20. Defence on Demand : A physiological perspective on phenotypic plasticity in anti-predator traits

    Författare :Jerker Vinterstare; Enhet akvatisk ekologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Phenotypic plasticity; inducible defences; stress physiology; cortisol; immune function; trade-offs; sexual dimorphism; crucian carp; visual ecology; predator-prey interactions; POMC pro-opiomelanocortin ; colour change; eco-immunology; Anti-predator defences; Inducible morphological defence; Phenotypic plasticity; Stress physiology; Cortisol; Immune function; Crucian carp; Predator-prey interactions; Trade-offs; Sexual dimorphism; POMC; Pro-opiomelanocortin; Visual ecology; Eye evolution; Melanin; Eco-immunology; Pace-of-life; Behavioural plasticity;

    Sammanfattning : Almost all species face some degree of predation risk, and, hence, evolution has produced a plethora of anti-predator defences. However, anti-predator strategies require resources, and the prevailing risk of becoming prey is influenced by many factors and rarely constant across time and space. LÄS MER