Search for dissertations about: "David Richardson"

Found 4 swedish dissertations containing the words David Richardson.

2. 1. Resource aquisition and allocation in lichens

   Author : Lena Dahlman; David Richardson; Umeå universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ecology; Amino acid; Arginine; carbohydrates; chlorophyll; ergosterol; microclimate; Lichen growth; nitrogen stress; photosynthesis; proteins; respiration; Symbiosis lichen ; nitrogene uptake; Ekologi; Terrestrial; freshwater and marine ecology; Terrestisk; limnisk och marin ekologi; ekologisk botanik; Ecological Botany;

   Abstract : Lichens are fascinating symbiotic systems, where a fungus and a unicellular alga, most often green (bipartite green algal lichens; 90% of all lichens), or a fi lamentous cyanobacterium (bipartite cyanobacterial lichens; 10% of all lichens) form a new entity (a thallus) appearing as a new and integrated organism: in about 500 lichens the fungus is associated with both a cyanobacterium and an alga (tripartite lichens). In the thallus, the lichen bionts function both as individual organisms, and as a symbiont partner. READ MORE

4. 2. European Black Grouse : MHC Genetic Diversity and Population Structure

   Author : Tanja Strand; Jacob Höglund; Helena Westerdahl; David S. Richardson; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Major Histocompatibility Complex; BLB; balancing selection; concerted evolution; bottleneck; fragmentation; 3 UTR; Biologi med inriktning mot populationsbiologi; Biology with specialization in Population Biology;

   Abstract : Black grouse Tetrao tetrix is a bird species composed of large, continuous as well as severely reduced and fragmented populations, making it an optimal species to investigate how genetic diversity is affected by habitat fragmentation. I have focused on genetic diversity in the Major Histocompatibility Complex (MHC) to measure the ability of the black grouse to respond to environmental changes. READ MORE

5. 3. On the Evolving Friction of Layered Materials and the Prospect of Their Image Reconstruction

   Author : David Andersson; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; teoretisk fysik; Theoretical Physics;

   Abstract : The scope of this licentiate thesis is twofold: 1. Investigate the frictional properties of systems with layered materials; 2. Employing image recognition algorithms to find the substrates in AFM experiments. READ MORE

6. 4. The Uncertainty-Embedded Innovation Process : A study of how uncertainty emerges in the innovation process and of how firms address that to create novelty

   Author : Sabrina Luthfa Karim; Gabriel Baffour Awuah; Mikael Hilmersson; Klaus Solberg Søilen; Anna Öhrwall Rönnbäck; Högskolan i Halmstad; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Innovation process; Uncertainties; Compromised and uncompromised actions; Actors; Resources; Activities; Activity links; Activity void;

   Abstract : Despite much discussion in the literature of uncertainties in relation to the innovation process, there is little knowledge of how they emerge in this process. This thesis accordingly aims to understand how uncertainty emerges in the innovation process and how firms address that uncertainty to create novelty from the process. READ MORE