Sökning: "biological life cycles"

Visar resultat 16 - 20 av 37 avhandlingar innehållade orden biological life cycles.

  1. 16. Structural Decorations in Viruses : Unraveling Acquired Functional Structures in Icosahedral RNA Virus Capsids

    Författare :Han Wang; Kenta Okamoto; Sarah Butcher; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Viruses; RNA viruses; capsid; structure; cryo-EM; Molekylär biovetenskap; Molecular Life Sciences;

    Sammanfattning : Viruses have a profound impact worldwide, posing challenges to animal welfare, agriculture, human health, and the ecosystem. This thesis examines the realm of non-enveloped icosahedral double-stranded (ds)RNA and single-stranded (ss)RNA viruses through three studies. LÄS MER

  3. 17. Tracking single molecules in uncharted territory : A single-molecule method to study kinetics in live bacteria

    Författare :Javier Aguirre Rivera; Magnus Johansson; Dmitri N. Ermolenko; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; single-molecule; protein synthesis; fluorescence microscopy; antibiotics; aminoglycosides; macrolides; apramycin; gentamicin; paromomycin; S13; translation; bacteria; Molekylär biovetenskap; Molecular Life Sciences;

    Sammanfattning : The synthesis of proteins, also known as translation, is a fundamental process in every living organism. The steps in the translation of genetic information to functional proteins have been meticulously studied, mostly using in vitro techniques, yielding a detailed model of their mechanisms. LÄS MER

  4. 18. Om livets kontinuitet. Undervisning och lärande om växters och djurs livscykler - en fallstudie i årskurs 5

    Författare :Eva Nyberg; Göteborgs universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; biological life cycles; teaching and learning; cognition and aesthetics; formative assessment; education for sustainable development;

    Sammanfattning : The aim of this thesis is to contribute to increased understanding of teaching and learning about life cycles, when the teaching is based on living organisms and the teacher is introduced to ideas of research on pupils’ ideas and formative assessment. This aim is addressed by investigating the pupils’ learning as well as their experiences of the living organisms, inquiring into the teachers’ competence and by describing the actual teaching. LÄS MER

  5. 19. Effect of climate and land use on niche utilization and distribution of nettle-feeding  butterflies

    Författare :Hélène Audusseau; Niklas Janz; Sören Nylin; Matthew Forister; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; zoologisk ekologi; Animal Ecology;

    Sammanfattning : Anthropogenic changes in climate and land use are causing a dramatic erosion of biodiversity. To understand this erosion, and predict future transformations of biodiversity, we need to understand better species’ response to these changes at different spatial and temporal scales. LÄS MER

  7. 20. The neglected ecology of the sand goby: Abundance and feeding in the Baltic sublittoral

    Författare :Sigrid Z. Ehrenberg; Ragnar Elmgren; Sture Hansson; Gunilla Ejdung; Erik Bonsdorff; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; sand goby; sublittoral; sub-thermocline; abundance; feeding; consumption; activity; Marine ecology; Marin ekologi; marin ekologi; Marine Ecology;

    Sammanfattning : I investigated the ecology and population density of the sand goby, Pomatoschistus minutus, at sub-thermocline depth in the north-western Baltic proper. Most previous research on the sand goby, and the co-occurring closely related common goby, P. LÄS MER