Sökning: "Negative selection"

Visar resultat 16 - 20 av 306 avhandlingar innehållade orden Negative selection.

  1. 16. Going once, going twice, SOLD! : the economics of past and present public procurement in Sweden

    Författare :Sofia Lundberg; Umeå universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; HUMANIORA; HUMANITIES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Adverse selection; asymmetric information; common value; fixed price contract; logit model; negative binomial; negotiated procedure; open procedure; private values; simplified procedure; stochastic cost frontier; Sverige; 1800-talet; 1900-talet; Prisbildning; Auktioner; Offentlig upphandling; tjänster;

    Sammanfattning : This thesis is about the economic aspects of public procurement of services through auctionsin Sweden. It focuses on two different institutions, auctions used to find foste r-parents forboarded out children in the 19th century, and auctions of cleaning service contracts in the 20 thcentury. LÄS MER

  3. 17. Selection of transthyretin amyloid inhibitors

    Författare :Irina Iakovleva; Anders Olofsson; Göran Larsson; Bente Westergaard; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Transthyretin; TTR; ATTR; TTR-stabilizing drugs; selectivity; medicinsk biokemi; Medical Biochemistry;

    Sammanfattning : Amyloidosis is a group of clinical disorders caused by the aggregation of specific proteins into abnormal extracellular deposits. Today, 31 different proteins have been linked to amyloid diseases including transthyretin-related amyloidosis (ATTR). LÄS MER

  4. 18. Regulation of alternative Pre-mRNA splicing : positive and negative control of adenovirus 3' splice site selection

    Författare :Oliver Mühlemann; Uppsala universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : .... LÄS MER

  5. 19. Mating behaviour and sexual selection in non-lekking fallow deer (Dama dama)

    Författare :David Stenström; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Ecology; Fallow deer; mating behaviour; sexual selection; scent marking; plasticity of behaviour; antler asymmetry; Ekologi; Terrestrial; freshwater and marine ecology; Terrestisk; limnisk och marin ekologi; Animal Ecology; zooekologi;

    Sammanfattning : This thesis examines both behavioural and morphological traits influencing male mating success in non-lekking fallow deer (Dama dama). The thesis contains results based on behavioural observations and experimental studies made on Öland and around Uppsala, Sweden. LÄS MER

  7. 20. The roles of demography and natural selection in shaping genome-wide variation of Norway spruce

    Författare :Xi Wang; Pär K. Ingvarsson; Carolina Bernhardsson; Xiao-Ru Wang; Nathaniel Street; Tanja Pyhäjärvi; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Norway spruce; whole-genome resequencing; variant calling; genetic linkage map; nucleotide diversity; natural selection;

    Sammanfattning : Understanding the relative contribution of genetic drift, natural selection, and mutation to genetic variation, and quantifying adaptive evolution and the effects of natural selection in species are enduring goals of evolutionary genetics. Norway spruce (Picea abies) is one of the most important conifer species that dominates from both an ecological and economical point of view in many boreal ecosystems. LÄS MER