Sökning: "term analysis"

Visar resultat 11 - 15 av 2534 avhandlingar innehållade orden term analysis.

  1. 11. Short-term and Long-term Exposure to Air pollution and Stroke risk

    Författare :Anna Oudin; Avdelningen för arbets- och miljömedicin; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Long-term effects; Two-phase methods; Hemorrhagic stroke; Ischemic stroke; Short-term effects; Hospital admissions; Air Pollution;

    Sammanfattning : Background: Stroke is a major cause of mortality and morbidity across the world. Air pollution has become an acknowledged risk factor for stroke, especially for acute effects. There is less support for effects by chronic exposure due to the methodological challenges inherent in such studies. LÄS MER

  3. 12. Work, Sickness, Earnings, and Early Exits from the Labor Market: An empirical analysis using Swedish longitudinal data

    Författare :Daniela Andrén; Göteborgs universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; annual earnings and hourly wages; short-term; and long-term absenteeism due to sickness; disability; exits from the labor market; multiple spells; unobserved heterogeneity; duration analysis.;

    Sammanfattning : This thesis contains a general overview, and five papers on the work, earnings, sickness, and early exits from the labor market of individuals in Sweden. Using relatively reliable data for hours worked and annual earnings, Paper 1 analyses the effects of (previous) sickness on both annual earnings and hourly wages, and find that people have lower annual earnings if they have experienced long-term sickness, and there is only a very week effect on the hourly wages. LÄS MER

  4. 13. Gait and motion analysis of hip arthroplasty. Validity, reliability and longterm results

    Författare :Roland Zügner; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Gait analysis; Hip arthroplasty; Kinematics; Radiostereometric analysis; Hip osteoarthritis;

    Sammanfattning : Introduction: Walking is one of the most fundamental activities of daily living in humans, when the hip joints transfer power between the lower extremities and the pelvis. Hip osteoarthritis (OA) will more or less influence this function and is increasing in an ageing population. LÄS MER

  5. 14. Polynomial Sequences Generated by Linear Recurrences : Location and Reality of Zeros

    Författare :Innocent Ndikubwayo; Boris Shapiro; Rikard Bögvad; Tamás Forgacs; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; real-rooted polynomials; generating functions; discriminants; Tran s conjecture; Toeplitz matrices; Mathematics; matematik;

    Sammanfattning : In this thesis, we study the problem of location of the zeros of individual polynomials in sequences of polynomials generated by linear recurrence relations.In paper I, we establish the necessary and sufficient conditions that guarantee hyperbolicity of all the polynomials generated by a three-term recurrence of length 2, whose coefficients are arbitrary real polynomials. LÄS MER

  7. 15. Spectral Inequalities and Their Applications in Quantum Mechanics

    Författare :Fabian Portmann; Ari Laptev; Robert Seiringer; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Spectral inequalities; quantum mechanics; Hardy inequalities; Sobolev inequalities; Lieb-Thirring inequalities; stability of matter; Bose gases; Bose-Einstein condensation; Mathematics; Matematik; Fysik; Physics;

    Sammanfattning : The work presented in this thesis revolves around spectral inequalities and their applications in quantum mechanics.In Paper A, the ground state energy of an atom confined to two dimensions is analyzed in the limit when the charge of the nucleus Z becomes very large. LÄS MER