Search for dissertations about: "the day-night effect"

Showing result 1 - 5 of 8 swedish dissertations containing the words the day-night effect.

  2. 1. Theoretical and Phenomenological Studies of Neutrino Physics

    Author : Mattias Blennow; Tommy Ohlsson; Eligio Lisi; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; neutrino mass; neutrino mixing; neutrino oscillations; matter effects; non-standard effects; the day-night effect; solar neutrinos; accelerator neutrinos; exact solutions; three-flavor effects; large density; neutrino decay; neutrino decoherence; neutrino absorption; non-standard neutrino interactions; seesaw mechanism; stability criteria; leptogenesis; Physics; Fysik;

    Abstract : This thesis is devoted to the theory and phenomenology of neutrino physics. While the standard model of particle physics has been extremely successful, it fails to account for massive neutrinos, which are necessary to describe the observations of neutrino oscillations made by several different experiments. READ MORE

  4. 2. Matter and damping effects in neutrino mixing and oscillations

    Author : Mattias Blennow; Tommy Ohlsson; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Engineering physics; Neutrino oscillations; neutrino mixing; matter effects; damping effects; the day-night effect; solar neutrinos; Teknisk fysik; Engineering physics; Teknisk fysik;

    Abstract : This thesis is devoted to the study of neutrino physics in general and the study of neutrino mixing and oscillations in particular. In the standard model of particle physics, neutrinos are massless, and as a result, they do not mix or oscillate. READ MORE

  5. 3. Ambulatory blood pressure and components of the metabolic syndrome in the population : With reference to the renin-angiotensin system, IgF-I, IGFBP-1, neuropentide Y, and leptin

    Author : Fredrik Nyström; Linköpings universitet; []
    Keywords : MEDICINE; MEDICIN;

    Abstract : The term "the metabolic syndrome" has been given to the constellation of insulin resistance, high blood pressure and hyperlipidemia. In western countries it is strongly associated with obesity and atherosclerosis. The cause of the metabolic syndrome is, however, incompletely understood. READ MORE

  6. 4. The Ecology of Floral Signals in Penstemon digitalis

    Author : Rosalie Burdon; Amy L. Parachnowitsch; James Thomson; Uppsala universitet; []
    Keywords : Antimicrobial; Bombus impatiens learning; indirect signal; multimodal; nectar; protandry; signal-reward association; Volatile Organic Compounds VOCs ; Biology with specialization in Ecological Botany; Biologi med inriktning mot ekologisk botanik;

    Abstract : In this thesis, I combined field observations and lab experiments to explore the ecological significance of floral signals in a North American wildflower, Penstemon digitalis. More specifically, to determine the potential mechanisms driving selection on floral scent, I studied how scent mediates interactions with pollinators and antagonists by (1) observing spatiotemporal variation in scent emission (2), floral volatile ability to suppress microbes (3) the honest advertisement of nectar, and (4) if scent could aid pollinator learning by reinforcing visual signals. READ MORE

  7. 5. Effects of aging and inflammatory molecules on the suprachiasmatic circadian clock

    Author : Mikael Nygård; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Circadian; suprachiasmatic; synaptic; inflammation; cytokine; SOCS; interferon; tumor necrosis factor; neuron; firing;

    Abstract : The suprachiasmatic nucleus (SCN) is considered the master circadian pacemaker in the mammalian brain and is vital for generating physiological and behavioral circadian rhythms. During aging and inflammatory conditions the circadian system is frequently affected, but relatively little is known about the mechanisms underlying such effects. READ MORE