Search for dissertations about: "minimum age"

Showing result 11 - 15 of 72 swedish dissertations containing the words minimum age.

  2. 11. Cambro-Ordovician microorganisms: acritarchs and endoliths

    Author : Martin Stockfors; Malgorzata Vidal-Moczydlowska; John S. Peel; Kenneth John Dorning; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Earth sciences; Cambrian; Ordovician; acritarch; endolith; Kolguev Island; North Greenland; Stratigraphy; Geovetenskap; Earth sciences; Geovetenskap;

    Abstract : Organic-walled microfossils are abundant and taxonomically diverse in Cambrian-Ordovician strata; some are important for biostratigraphy and for the correlation of geological successions. New assemblages of Cambrian-Ordovician acritarchs from Kolguev Island, Arctic Russia and Middle Cambrian ichnofossils of endoliths from Peary Land, North Greenland are studied. READ MORE

  4. 12. Gallstone disease : Population based studies on risk factors, symptomatology and complications

    Author : Ingvar Halldestam; Kurt Borch; Lars Granström; Linköpings universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Epidemiology; gallstone disease; symptomatology; complications; risk factors; Surgical research; Kirurgisk forskning;

    Abstract : Background & aims: Gallstone disease is common, costly and its complications are sometimes life threatening. The aim of this thesis is to determine the prevalence and incidence in relation to putative risk factors in the general population. READ MORE

  5. 13. Partial and General Equilibrium Effects of Unemployment Insurance : Identification, Estimation and Inference

    Author : Mathias von Buxhoeveden; Björn Öckert; Johan Vikström; Rafael Lalive; Uppsala universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Labor Economics; Unemployment Insurance; Wage Level and Structure; Job Search; Duration Analysis; Econometric and Statistical Methods; Selection Models; Economics; Nationalekonomi;

    Abstract : Essay I: Wage setting models typically posit a tight relationship between the generosity of unemployment insurance (UI) and equilibrium wages. This paper estimates the effect of UI on workers’ wages. READ MORE

  6. 14. Physical activity and well-being among adolescents: A public health perspective

    Author : Birna Baldursdottir; Göteborgs universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; adolescents; physical activity; depressive symptoms; sleep quality; intervention; pedometer; school setting; public health; health promotion;

    Abstract : Background: Physical activity among adolescents is diminishing and worldwide about 80% of 13–15-year-old adolescents do not meet the public health guidelines of minimum 60 minutes of daily physical activity of at least moderate intensity. This decline in physical activity has serious consequences as lack of physical activity adversely affects physical and mental health. READ MORE

  7. 15. Children's diarrhea in Hanoi, Vietnam : importance of enteric pathogens

    Author : Vu Trung Nguyen; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Diarrhea is one of the leading causes of illnesses and death among children in developing countries, where an estimated 1.3 billion episodes and 4 to 10 million deaths occur each year in children less than 5 years of age. READ MORE