Search for dissertations about: "parallel evolution"

Showing result 6 - 10 of 140 swedish dissertations containing the words parallel evolution.

  2. 6. Hematopoietic Serine Proteases from the Mast Cell Chymase and Tryptase Loci - a Functional and Evolutionary Analysis

    Author : Jenny Reimer; Lars Hellman; Gunnar Nilsson; Sara Wernersson; Göran Andersson; Uppsala universitet; []
    Keywords : Cell and molecular biology; immune system; mast cell; basophil; mast cell chymase locus; multigene tryptase locus; serine protease; evolution; Cell- och molekylärbiologi;

    Abstract : Mast cells are key effector cells in allergic and inflammatory diseases. However, their primary role is most likely in host defence against parasitic and bacterial infections. Mast cells are a particularly rich source of serine proteases. READ MORE

  4. 7. Quo vadis? Insights into the determinants of evolutionary dynamics

    Author : Alexandre Rêgo; Rike Stelkens; Dmitri Petrov; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; natural selection; selection; genetic drift; evolutionary rescue; historical contingency; adaptation; complex environments; evolutionary predictability; parallel evolution; populationsgenetik; Population Genetics;

    Abstract : Predicting future evolutionary outcomes and explaining past and current patterns of biodiversity are fundamental goals in evolutionary biology. Trajectories of evolving populations are determined by evolutionary mechanisms (natural selection, mutation, genetic drift, and gene flow) and the environment in which the populations are found. READ MORE

  5. 8. Mating strategies and sexual conflicts in aquatic invertebrates: consequences for evolutionary differentiation

    Author : Kristina Karlsson; Biologiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Asellus aquaticus; Dytiscidae; gender bias; genetic polymorphism; mate guarding; parallel evolution; plasticity; population divergence; sexual conflict; sexually antagonistic selection; sexual selection;

    Abstract : In this thesis I investigated how mating related strategies may differ among populations and how these strategies evolve in response to their local ecological environments. I have used two different study systems of aquatic invertebrates: diving beetles (Dytiscidae) and the fresh water isopod Asellus aquaticus. READ MORE

  6. 9. Systematics, phylogeography and multiple origins of morphs in two species complexes belonging to Cistaceae, Helianthemum oelandicum and H. nummularium

    Author : Eman Soubani; Biologiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; introgression; parallel evolution; postglacial migration; genetic polymorphism; Pleistocene; morphometry; H. nummularium; Helianthemum oelandicum; cpDNA;

    Abstract : The Helianthemum oelandicum complex shows considerable morphological variation across its geographic distribution in Europe and western Asia. By combining four primer pairs and four restriction enzymes I identified nine cpDNA haplotypes with distinct geographical distributions. READ MORE

  7. 10. Design Methods and Processes for ML/DL models

    Author : Meenu Mary John; Helena Holmström Olsson; Jan Bosch; Maria Paasivaara; Malmö universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Machine Learning; Deep Learning; Development; Deployment; Evolution;

    Abstract : Context: With the advent of Machine Learning (ML) and especially Deep Learning (DL) technology, companies are increasingly using Artificial Intelligence (AI) in systems, along with electronics and software. Nevertheless, the end-to-end process of developing, deploying and evolving ML and DL models in companies brings some challenges related to the design and scaling of these models. READ MORE