Search for dissertations about: "structural complexity"

Showing result 6 - 10 of 286 swedish dissertations containing the words structural complexity.

  2. 6. A structural investigation into the complexity of mesoporous silica crystals : From a view of curvature and micellar interaction to quasicrystallinity

    Author : Changhong Xiao; Terasaki Osamu; Lidin Sven; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; electron microscopy; mesoporous silica; quasicrystal; minimal surface; Structural Chemistry; strukturkemi;

    Abstract : Mesoporous silica crystals have a large variety of structures mainly due to the versatility of their structure template. The configuration and the chemical state of the templating micellar surfactants, together with the kinetic process of silica will determine the final outcome of the synthesis. READ MORE

  4. 7. Extinctions and Ecosystem Stability

    Author : Susanne Pettersson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; structural stability; ecosystems; interaction structure; Generalised Lotka-Volterra; complexity; local stability; dynamical systems; stability;

    Abstract : Human society's expansion and demand for both biotic and abiotic natural resources exert a large pressure on ecosystems around the globe. Ecosystems are complex networks of species interacting with each other and their physical surroundings. READ MORE

  5. 8. Effects of morphometric isolation and vegetation on the macroinvertebrate community in shallow Baltic Sea land-uplift bays

    Author : Joakim Hansen; Lena Kautsky; Erik Bonsdorff; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; lagoons; macrofauna; macrophytes; hydrophytes; charophytes; ecological succession; structural complexity; habitat complexity; habitat selection; species composition; biodiversity; stable isotopes; food web; Terrestrial; freshwater and marine ecology; Terrestrisk; limnisk och marin ekologi; Plant Ecology; växtekologi;

    Abstract : Shallow sheltered Baltic Sea bays are ecologically important habitats that harbour a unique vegetation community and constitute vital reproduction areas for many coastal fish species. Knowledge about the invertebrate community in these bays is, however, limited. READ MORE

  6. 9. Complexity Theory and Physics Education Research : The Case of Student Retention in Physics and Related Degree Programmes

    Author : Jonas Forsman; Cedric Linder; Ismo Koponen; Uppsala universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Physics Education Research; Complexity Theory; Student Retention; Physics with specialization in Physics Education; Fysik med inriktning mot fysikens didaktik;

    Abstract : This thesis explores the use of complexity theory in Physics Education Research as a way to examine the issue of student retention (a university’s ability to retain its students). University physics education is viewed through the concepts of nestedness and networked interactions. READ MORE

  7. 10. Tales from the Sweet Side of Life : Structure and dynamics of carbohydrate-based systems

    Author : Alessandro Ruda; Göran Widmalm; Jesús Jiménez Barbero; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; carbohydrates; nuclear magnetic resonance; molecular dynamics; glycans; conformational analysis; structure elucidation; protein-glycan interactions; Organic Chemistry; organisk kemi;

    Abstract : The field of glycomics has experienced significant developments in the last few decades, revealing a profound and elaborate language behind the intrinsic complexity of the glycans structures. This ‘sugar code’ is at the basis of intercellular interaction and recognition. For this language to be understood, its chemical basis must be unveiled. READ MORE