Sökning: "energetics"

Visar resultat 1 - 5 av 87 avhandlingar innehållade ordet energetics.

  1. 1. Behavioural energetics : acquisition and use of energy by hummingbirds

    Författare :Staffan Tamm; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; hummingbirds; kolibri;

    Sammanfattning : .... LÄS MER

  2. 2. Water in and on ionic materials : Structure, energetics, and vibrations

    Författare :Getachew Kebede; Kersti Hermansson; Marie-Pierre Gaigeot; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; DFT; dispersion interactions; OH stretching frequency; electric field; dipole moment; Hydrogen bond; ionic surfaces; ionic hydrates;

    Sammanfattning : Many chemical and physical phenomena in nature, in industrial processes, and in our daily lives take place at water/solid interfaces. The aim of this thesis is to further our knowledge of such processes at a molecular level. LÄS MER

  3. 3. Bird orientation: external cues and ecological factors

    Författare :Johan Bäckman; Evolutionär ekologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; tracking radar; Emlen funnel.; Animal ecology; Djurekologi; oscillatory orientation; roosting flight; scatter; concentration; heading; cue calibration; light dependent; magnetoreception; subcutaneous fat stores; body condition; energetics; geomagnetic field; visual cues; orientation; birds; migration;

    Sammanfattning : Birds are generally capable of accurate orientation. In this thesis I present studies about the external cues and the ecological factors that influences bird orientation. A multitude of environmental cues are used to select and maintain a proper direction. LÄS MER

  4. 4. Costs, benefits and constraints in the evolution of avian reproductive tactics: a study on the blue tit

    Författare :Erik Svensson; Evolutionär ekologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; reproductive timing; selection analysis; natural selection; mate quality; nestlings; sex ratio; DNA-content; flow cytometry; ELISA; BMR; energetics; immunocompetence; immune system; sexual conflict; nestling mortality; thermoregulation; moult; reproductive costs; reproductive effort; Parus caeruleus; blue tit; birds; juvenile survival; laying date; food supply; Animal ecology; Djurekologi;

    Sammanfattning : In this study I have investigated the various factors influencing reproductive tactics among breeding blue tits (Parus caeruleus). The study was carried out in a nestbox-breeding population of marked individuals at the Revinge Area, outside Lund, southern Sweden. LÄS MER

  5. 5. Glycolytic flux regulation in Saccharomyces cerevisiae during anaerobic growth and starvation

    Författare :Elisabeth Thomsson; Chalmers University of Technology; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Saccharomyces; Yeast; Starvation; Energetics; Chemostat; Anaerobic;

    Sammanfattning : The physiology of S. cerevisiae under anaerobic growth conditions is of interest not least during implementation and development of industrial yeast-catalysed ethanol fermentations in order to maintain a productive yeast population. LÄS MER