Sökning: "Christer Brown"

Hittade 5 avhandlingar innehållade orden Christer Brown.

  1. 1. The 2005 Hurricane Katrina response failure : Seeing preparedness for foreseeable complex problems through a neo-institutional lens

    Författare :Christer Brown; Bertjan Verbeek; Fredrik Bynander; Ira Helsloot; Bengt Sundelius; Kerstin Eriksson; Försvarshögskolan; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Statsvetenskap med inriktning mot krishantering och internationell samverkan; Statsvetenskap med inriktning mot krishantering och internationell samverkan;

    Sammanfattning : Governmental organisations often fail to prepare themselves adequately for complex problems such as natural disasters. This is remarkable because these threats are usually studied intensively and governments do develop plans for such situations. LÄS MER

  3. 2. New developments in hydrofracturing stress measurement techniques and a comparison to the HTPF method

    Författare :Christer Ljunggren; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mining and Rock Engineering; Gruv- och Berganläggningsteknik;

    Sammanfattning : This thesis describes two hydraulic methods for rock stress measurements; hydraulic fracturing and hydraulic tests on pre-existing fractures (the HTPF method). It includes theories to evaluate stress field information for somewhat extraordinary stress and field situations, experimental investigations and field measurements. LÄS MER

  4. 3. Pheomelanin markers in melanoma with reference to their excretion into urine

    Författare :Dzeneta Nezirevic Dernroth; Bertil Kågedal; Christer Hansson; Linköpings universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pheomelanin; melanoma; benzothiazole; aminohydroxyphenylalanine; diffuse melanosis; HILIC; Clinical chemistry; Klinisk kemi;

    Sammanfattning : Skin pigmentation is an important issue in most cultures. Until recently we have not understood the most important elements of pigmentation regarding detailed chemical structure. LÄS MER

  5. 4. Antipredator defence in butterflies

    Författare :Martin Olofsson; Christer Wiklund; Graeme Ruxton; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Antipredator defence; Bird; Crypsis; Predator; Predator-prey interaction; Prey-attack behavior; Butterfly; Deimatic behavior; Eyespots; Startle display; zoologisk ekologi; Animal Ecology;

    Sammanfattning : Predation exerts a potent selection mechanism and has resulted in a suite of antipredation adaptations encompassing morphological and behavioral traits in prey. In butterflies, several such traits appear to be directed towards birds which are considered as one of their major predators. LÄS MER

  7. 5. Ice, wood and rocks : regulating elements in riverine ecosystems

    Författare :Johanna Engström; Christer Nilsson; Roland Jansson; James Helfield; Tenna Riis; Umeå universitet; []
    Nyckelord :riparian zone; timber floating; river restoration; cut-off side channels; hydrochory; large wood; anchor ice; fish;

    Sammanfattning : Riparian ecosystems are of great importance in the landscape, connecting landscape elements longitudinally and laterally and often encompassing sharp environmental gradients in ecological processes and communities. They are influenced by fluvial disturbances such as flooding, erosion and sediment deposition, which create dynamic and spatially heterogeneous habitats that support a high diversity of species. LÄS MER