Search for dissertations about: "Biological models"

Showing result 1 - 5 of 732 swedish dissertations containing the words Biological models.

  1. 1. Phylogeny and biogeography of the family Calceolariaceae

    University dissertation from Göteborg : University of Gothenburg

    Author : Stephan Nylinder; Göteborgs universitet.; Gothenburg University.; [2010]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Calceolariaceae; Calceolaria; Jovellana; biogeography; BEAST; chloroplast DNA; Bayesian inference; phylogeny; continuous and discrete models; phylgeography; Andes;

    Abstract : .... READ MORE

  2. 2. Spatiotemporal Evolution of Neotropical Organisms: New Insights into an Old Riddle

    University dissertation from Göteborg : Geson Hylte Tryck

    Author : Alexandre Antonelli; Göteborgs universitet.; Gothenburg University.; [2008]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Neotropics; Biodiversity patterns; Speciation models; Andean uplift; K T Event; Biogeography; Phylogenetics; Molecular dating; Rubiaceae; Chloranthaceae; Campanulaceae; Tetrapods; Biological systematics;

    Abstract : Nowhere else on Earth are there so many species of plants and animals as in the Neotropical region. Yet, many questions remain concerning the causes underlying such outstanding diversification. READ MORE

  3. 3. Intramolecular isotope analysis reveals plant ecophysiological signals covering multiple timescales

    University dissertation from Umeå : Umeå Universitet

    Author : Thomas Wieloch; Umeå universitet.; [2019]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NMR spectroscopy; tree ring; isotope ratio; isotope effect; intramolecular 13C 12C signal; carbon allocation; acclimation; plant performance; climate reconstruction; plant ecophysiology;

    Abstract : Our societies' wellbeing relies on stable and healthy environments. However, our current lifestyles, growth-oriented economic policies and the population explosion are leading to potentially catastrophic degradation of ecosystems and progressive disruption of food chains. READ MORE

  4. 4. Thermodynamic Studies of Macromolecular Models

    University dissertation from Department of Theoretical Physics, Lund University

    Author : Ola Sommelius; Lunds universitet.; Lund University.; [1997]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; classical mechanics; Mathematical and general theoretical physics; termodynamik; klassisk mekanik; Matematisk och allmän teoretisk fysik; statistisk fysik; gravitation; kvantmekanik; relativitet; quantum mechanics; relativity; statistical physics; thermodynamics; Fysicumarkivet A:1997:Sommelius;

    Abstract : The thermodynamic properties of single chain polyelectrolyte and protein models are studied using Monte Carlo simulations and (for the polyelectrolyte models) variational calculations and high- and low-temperature expansions. A variational method is used for minimizing Lennard-Jones energies and for estimating end-to-end distances for a rigid Coulomb chain at finite temperatures. READ MORE

  5. 5. Diversity Underfoot Systematics and Biogeography of the Dictyostelid Social Amoebae

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Allison L Perrigo; Uppsala universitet.; [2013]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Amoeba; biogeography; cryptic species; dictyostelid; latitudinal gradient; multicellularity; protist; social amoeba; phylogenetics; systematics; new species; Biologi med inriktning mot systematik; Biology with specialization in Systematics;

    Abstract : Dictyostelids (Amoebozoa) are a group of social amoebae consisting of approximately 150 species, which are found in terrestrial habitats worldwide. They are divided into eight major clades based on molecular phylogeny, and within these clades are many species complexes. READ MORE