Sökning: "Johan Nordström"

Visar resultat 11 - 15 av 15 avhandlingar innehållade orden Johan Nordström.

  1. 11. Physical activity, visceral adipose tissue, and cardiovascular disease in older adults : associations and effects

    Författare :Marcel Ballin; Peter Nordström; Johan Niklasson; Maria Hagströmer; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; physical activity; exercise; obesity; stroke; myocardial infarction; death; aging; geriatrics; epidemiology; trial; Geriatrics; geriatrik; epidemiologi; Epidemiology; kardiologi; Cardiology; Public health; folkhälsa; physiotherapy; fysioterapi;

    Sammanfattning : BACKGROUND: Cardiovascular disease (CVD) poses a substantial public health burden and is the leading cause of mortality in older adults. With the population aging rapidly, interventions aimed at improving modifiable risk factors for CVD, such as physical inactivity and visceral obesity, could play an important role in reducing its burden, provided they are proven effective. LÄS MER

  3. 12. On Long Proofs of Simple Truths

    Författare :Kilian Risse; Per Austrin; Johan Håstad; Jakob Nordström; Benjamin Rossman; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Computational Complexity; Lower Bounds; Proof Complexity; Datalogi; Computer Science;

    Sammanfattning : Propositional proof complexity is the study of certificates of infeasibility. In this thesis we consider several proof systems with limited deductive ability and unconditionally show that they require long refutations of the feasibility of certain Boolean formulas. LÄS MER

  4. 13. Platser för lek, upplevelser och möten : Om barns rörelsefrihet i fyra bostadsområden

    Författare :Mia Heurlin-Norinder; Ingrid Heyman; Maria Nordström; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; children; independent mobility; place; social responsivity; play; accessibility; participant observations of environment; informal learning; Education; Pedagogik;

    Sammanfattning : This thesis is the result of two studies concerning children’s independent mobility, which means the freedom for children to walk or bike on their own or together with friends but without being escorted by parents. The studies are accomplished in four different areas and are also searching for different environmental qualities. LÄS MER

  5. 14. Workers and Occupations in a Changing Labour Market : The Heterogeneous Effects of Mass Layoffs and Social Safety Nets

    Författare :Yaroslav Yakymovych; Stefan Eriksson; Adrian Adermon; Georg Graetz; Michael Lechner; Uppsala universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Structural change; Mass layoffs; Sickness absence; Causal forest; Economics; Nationalekonomi;

    Sammanfattning : Essay I: Sickness insurance guarantees employees the right to take leave from work when they are sick, but is vulnerable to excessive use. This paper studies which workers react to changes in monitoring by physicians in a large-scale randomised experiment. LÄS MER

  7. 15. Reformvilja eller riksdagstaktik : Junkrana och representationsfrågan 1847-54

    Författare :Staffan Förhammar; Humanistiska fakulteten Stockholms universitet; []
    Nyckelord :;

    Sammanfattning : Until 1866, the Swedish Riksdag (parHament) remained an assembly of four separate Estates, those of the Nobility, Clergy, Burghers and Peasants. Previous research concerning the movement for reforming the composition of the Riksdag at mid-century has primarily dealt with the liberals, while the conservatives have generally been assumed to have defended the status quo. LÄS MER