Search for dissertations about: "cognitive components"

Showing result 16 - 20 of 132 swedish dissertations containing the words cognitive components.

  1. 16. A Spectrum Decision Support System for Cognitive Radio Networks

    Author : Yong Yao; Blekinge Tekniska Högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : Cognitive Radio Networks (CRNs) offer a promising capability of alleviating the problem of spectrum insufficiency. In CRNs, the licensed spectrum channels are either exclusively reserved for licensed users or temporarily used by unlicensed users. The requirement for unlicensed users is to not harmfully impair the licensed users transmissions. READ MORE

  2. 17. Conceptual metaphors in learning and teaching entropy : adopting a cognitive semantic approach in science education research

    Author : Fredrik Jeppsson; Helge Strömdahl; Tamer Amin; Roland Kjellander; David Hammer; Linköpings universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Science education; thermodynamics; semantics; conceptual metaphors; Naturvetenskapernas didaktik; termodynamik; entropi; semantik; begreppsliga metaforer;

    Abstract : Over the last 20 years there has been an extensive amount of research on science learning conducted from a “knowledge-in-pieces” or “resources” perspective. One of the main goals of that research has been to identify and characterize available cognitive knowledge resources that can be productive components of scientific understanding. READ MORE

  3. 18. Cognitive function and neurophysiological correlates in relapsing-remitting multiple sclerosis

    Author : Mathias Sundgren; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Impaired cognitive function is a frequent consequence of multiple sclerosis (MS). It negatively affects vocational status, treatment adherence, physical independence, competence in activities of daily life, rehabilitation potential, driving safety and quality of life. READ MORE

  4. 19. Latent variable models for longitudinal twin data

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

    Abstract : 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. READ MORE

  5. 20. Rough beginnings : Executive function in adolescents and young adults after preterm birth and repeat antenatal corticosteroid treatment

    Author : Johanna Stålnacke; Ann-Charlotte Smedler; Hans Forssberg; Peter Anderson; Stockholms universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; cognitive flexibility; cluster analysis; development; latent variable analysis; longitudinal studies; parental education; perinatal medical complications; person-oriented approach; structural equation modeling; working memory; Psychology; psykologi;

    Abstract : This thesis investigates long-term cognitive outcome in two cohorts of adolescents and young adults exposed to stressors during the perinatal period: one group born preterm (.... READ MORE