Sökning: "study variable"

Visar resultat 1 - 5 av 1120 avhandlingar innehållade orden study variable.

  1. 1. Physical activity, participation and self-rated health among older community-dwelling Icelanders : a population-based study

    Författare :Solveig Arnadottir; Lillemor Lundin-Olsson; Elin Dianna Gunnarsdottir; Gunnevi Sundelin; Alan M Jette; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Aging; older people; physical activity; participation; self-rated health; balance confidence; rural; urban; residence; International Classification of Functioning Disability and Health ICF ; Rasch measurement; standardized assessment; Physiotherapy; Sjukgymnastik fysioterapi; sjukgymnastik; Physiotherapy;

    Sammanfattning : Background: The main objective of this study was to investigate older people’s physical activity, their participation in various life situations, and their perceptions of their own health. This included an exploration of potential influences of urban versus rural residency on these outcomes, an evaluation of the measurement properties of a balance confidence scale, and an examination of the proposed usefulness of the International Classification of Functioning, Disability and Health (ICF) as a conceptual framework to facilitate analysis and understanding of selected outcomes. LÄS MER

  3. 2. Externalizing and internalizing adjustment problems in teenage girls : a longitudinal study

    Författare :Margit Wångby; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Psychology; Psykologi; psykologi; Psychology;

    Sammanfattning : The present thesis concerns the development of girls' adjustment problems during the adolescent period and into early adulthood. Its main focus is on a) developmental associations between externalizing and internalizing problems; and b) typical patterns of self-perceived adjustment problems in adolescence and their associations with adult maladjustment. LÄS MER

  4. 3. Bilingual education cognitive development and school achievement : a study of the bilingual programs for Tibetan children

    Författare :Yu Qiang; Katrin Goldstein Kyaga; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; bilingualism; bilingual education; cognitive development; threshold hypothesis; study variable; covariates the third variables ; path analysis; direct effects; total effects.; internationell pedagogik; International Education;

    Sammanfattning : This study examines the effects of two models of school bilingual programs on Tibetan children's cognitive development and school achievement.Based on the findings of empirical studies, Cummins' threshold theory was critically evaluated. LÄS MER

  5. 4. Optimization of confluent jets ventilation with variable airflow

    Författare :Harald Andersson; Mathias Cehlin; Roland Gårdhagen; Högskolan i Gävle; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Confluent jets; Air distribution system; Air supply device; Ventilation performance; Indoor air quality; Thermal comfort; Experimental study; Computational fluid dynamics CFD ; Variable air volume.; confluent jets; luftdistributionssystem; tilluftsdon; ventilationsprestanda; inomhusluftkvalitet; termisk komfort; experimentell studie; Computational fluid dynamics CFD ; variabelflödessystem; Hållbar stadsutveckling; Sustainable Urban Development;

    Sammanfattning : In recent years, applications of confluent jets for design of ventilation supply devices have been widely studied. Similarly, numerous studies have been made on the potential and application of variable air volume (VAV) in order to reduce the energy demand of ventilation systems. LÄS MER

  7. 5. Evaluation of Variable Speed Limits : Empirical Evidence and Simulation Analysis of Stockholm’s Motorway Control System

    Författare :Albania Nissan; Haris N. Koutsopoulos; Tomer Toledo; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Motorway Control System; Mainline Control; Variable Speed Limits; Driver Behavior; Capacity; Intelligent Transport Systems; microsimulation model; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; Mechanical energy engineering; Mekanisk energiteknik; Mechanical energy engineering; Mekanisk energiteknik;

    Sammanfattning : Variable Speed Limits (VSL) are often used to improve traffic conditions on congested motorways. VSL can be implemented as mandatory or advisory. The objective of the thesis isto study in detail the effectiveness of VSL. The focus is on both, design parameters and conditions under which VSL are most effective. LÄS MER