Sökning: "twin"

Visar resultat 1 - 5 av 358 avhandlingar innehållade ordet twin.

  1. 1. Latent variable models for longitudinal twin data

    Författare :Annica Dominicus; Juni Palmgren; Nancy L. Pedersen; Michael G. Kenward; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Latent variable models; twin models; variance components; change point models; non-ignorable nonresponse; likelihood ratio tests; Mathematical statistics; Matematisk statistik;

    Sammanfattning : Longitudinal twin data provide important information for exploring sources of variation in human traits. In statistical models for twin data, unobserved genetic and environmental factors influencing the trait are represented by latent variables. In this way, trait variation can be decomposed into genetic and environmental components. LÄS MER

  3. 2. Efficient Reconfigurable Multipliers Based on the Twin-Precision Technique

    Författare :Magnus Själander; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Reconfigurable; VLSI; Low-Power; Twin-Precision; Multipliers; High-Speed;

    Sammanfattning : During the last decade of integrated electronic design ever more functionality has been integrated onto the same chip, paving the way for having a whole system on a single chip. The strive for ever more functionality increases the demands on circuit designers that have to provide the foundation for all this functionality. LÄS MER

  4. 3. Vetenskap på gränsen

    Författare :Tora Holmberg; Kaj Håkanson; Mark Elam; Uppsala universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Sociology; discourse analysis; sociology of science; cultural studies; Donna Haraway; boundary politics; figure; behavioural genetics; genomics; behaviour; human animal; twin; Sociologi; Sociology; Sociologi; Sociology; sociologi;

    Sammanfattning : With behavioural genetic twin- and animal-studies as a point of departure, this thesis investigates how the polyphonic talk about genes creates certain conditions for how “human behaviour” can be constructed, how the politics of boundary fixing contributes to and undermines respectively, credible narratives about human behaviour and, in the extension, about what constitutes human-ness. Furthermore, sociology is used as a sounding board in order to investigate what behavioural genetic knowledge can promote in terms of sociological insights and vice versa. LÄS MER

  5. 4. Twin-arginine translocation in Yersinia : the substrates and their role in virulence

    Författare :Ummehan Avican; Åke Forsberg; Åsa Sjöling; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Yersinia pseudotuberculosis; Tat; virulence; Tat substrates; SufI; stress response; metabolism; infection; transcriptome analysis; Infectious Diseases; infektionssjukdomar; molekylärbiologi; Molecular Biology; mikrobiologi; Microbiology;

    Sammanfattning : Pathogenic Yersinia cause a manifold of diseases in humans ranging from mild gastroenteritis (Y. pseudotuberculosis and Y. enterocolitica) to pneumonic and bubonic plague (Y. LÄS MER

  7. 5. Autistic-like traits

    Författare :Sebastian Lundström; Malmö Rättspsykiatri; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Autism; twin; genetics; Autistic-like traits;

    Sammanfattning : Introduction Autism spectrum disorders (ASDs) are neurodevelopmental disorders characterized by restrictions in social interaction, understanding, and communication, by stereotyped patterns of repetitive behaviors, and by narrow interests. ASDs, which affect about 1% of the population, are predominantly genetic, but no single explanation has been found. LÄS MER