Sökning: "character evolution"

Visar resultat 6 - 10 av 103 avhandlingar innehållade orden character evolution.

  1. 6. Patterns of evolution in a young species, the Baltic seaweed Fucus radicans

    Författare :Angelica Ardehed; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Marine biology; Evolution;

    Sammanfattning : To be able to interpret patterns of biodiversity it is important to understand the processes by which new species evolve and how closely related species remain reproductively isolated and ecologically differentiated. This thesis centers on the evolution of the two brown algae Fucus radicans and Fucus vesiculosus in the Baltic Sea, where Fucus radicans very recently diverged from F. LÄS MER

  3. 7. Enzyme Cold Adaptation through Evolution of Protein Flexibility

    Författare :Jaka Sočan; Johan Åqvist; Hugo Gutiérrez-de-Terán; Janez Mavri; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; EVB; Empirical valence bond method; Pancreatic elastase; α-amylase; Enzyme catalysis; Enzyme evolution; Cold adaptation; Temperature dependence of catalytic rates; Psychrophilic enzyme; Molekylär biovetenskap; Molecular Life Sciences;

    Sammanfattning : What lives, evolves. Macromolecular catalysis is a process, central to both evolutionary and metabolic aspect of life, as it provides a systematic bias favouring certain chemical processes. LÄS MER

  4. 8. Genome Evolution in Maternally Inherited Insect Endosymbionts

    Författare :Lisa Klasson; Siv Andersson; Jonas Sandström; George Weinstock; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biology; Biologi; Biology; Biologi;

    Sammanfattning : Symbiosis is a widely common phenomenon in nature and has undoubtedly contributed to the evolution of all organisms on earth. Symbiotic associations can be of varying character, such as parasitic or mutualistic, but all imply a close relationship. LÄS MER

  5. 9. Moral Lessons from Psychology : Contemporary Themes in Psychological Research and their Relevance for Ethical Theory

    Författare :Henrik Ahlenius; Jonas Olson; Frans Svensson; Antti Kauppinen; Stockholms universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; HUMANIORA; HUMANITIES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; consequentialism; deontology; emotion; ethics; evolution; innate; moral judgment; moral philosophy; psychology; utilitarianism; virtue; praktisk filosofi; Practical Philosophy;

    Sammanfattning : The thesis investigates the implications for moral philosophy of research in psychology. In addition to an introduction and concluding remarks, the thesis consists of four chapters, each exploring various more specific challenges or inputs to moral philosophy from cognitive, social, personality, developmental, and evolutionary psychology. LÄS MER

  7. 10. Endocranial Morphology and Phylogeny of Palaeozoic Gnathostomes (Jawed Vertebrates)

    Författare :Martin D. Brazeau; Per Ahlberg; Graham Budd; Henning Blom; Michael Coates; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; systematics; palaeontology; anatomy; evolution; Organism biology; Organismbiologi;

    Sammanfattning : Gnathostomes, or jawed vertebrates, make up the overwhelming majority of modern vertebrate diversity. Among living vertebrates, they comprise the chondrichthyans (“cartilaginous fishes” such as sharks, skates, rays, chimaeras) and the osteichthyans (“bony fishes” or bony vertebrates, inclusive of tetrapods). LÄS MER