Search for dissertations about: "utility function"

Showing result 1 - 5 of 128 swedish dissertations containing the words utility function.

  1. 1. Ventricular Long Axis Function: Amplitudes and Timings : Echocardiographic Studies in Health and Disease

    Author : Frederick Bukachi; Anders Waldenstrom; Derek Gibson; Umeå universitet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Medicine; Echocardiography; Doppler Tissue Imaging; Ageing; coronary disease; left ventricular function; atrial contraction; electromechanical function; coronary angioplasty.; Medicin; Dermatology and venerology; clinical genetics; internal medicine; Dermatologi och venerologi; klinisk genetik; invärtesmedicin; kardiologi; Cardiology;

    Abstract : Background: The ageing process not only increases the risk of coronary artery disease (CAD) but also complicates its diagnosis and treatment. It is therefore important to understand the newer concepts of cardiovascular ageing physiology as well as methods of predicting the outcomes of therapeutic options available for the elderly with severe CAD. READ MORE

  2. 2. Large deviation techniques applied to three questions of when

    Author : Ola Hammarlid; Anders Martin-Löf; Ingmar Kaj; Stockholms universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Large deviations; first passage time; stopping time; rate function; convex barrier; fallacy of large numbers; utility function; insurance; ruin; variable premium; generalized Ornstein-Uhlenbeck process; Mathematical statistics; Matematisk statistik;

    Abstract : Large deviation techniques are used to solve three problems; when is a distant convex barrier passed, when to accept a sequence of gambles and when is the time of ruin. This work is the collection of four papers. READ MORE

  3. 3. Model Vertices Beyond the GW Approximation

    Author : Mikael Hindgren; Matematisk fysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Matematisk och allmän teoretisk fysik; thermodynamics; statistical physics; gravitation; GW approximation; Electron self energy; Green s function; consistency; local-field corrections; vertex function; conserving approximations; variational energies; Mathematical and general theoretical physics; classical mechanics; relativity; quantum mechanics; klassisk mekanik; kvantmekanik; relativitet; statistisk fysik; termodynamik; Fysicumarkivet A:1997:Hindgren;

    Abstract : We study the effects of local vertex corrections to the self energy of the electron gas. We find that a vertex derived from time-dependent density-functional theory can give accurate self energies without including the explicit time dependence of the exchange-correlation potential provided, however, that a proper decay at large momentum transfer (large q) is built into the vertex function. READ MORE

  4. 4. Direct Thrombin Inhibitors in Treatment and Prevention of Venous Thromboembolism: Dose – Concentration – Response Relationships

    Author : Marie Cullberg; Mats O. Karlsson; Ulf G. Eriksson; Nick H.G. Holford; Uppsala universitet; []
    Keywords : Pharmaceutical biosciences; Ximelagatran; pharmacokinetic; pharmacodynamic; activated partial thromboplastin time; utility function; dosing strategy; venous thromboembolism; NONMEM; Farmaceutisk biovetenskap;

    Abstract : For prevention and treatment of thrombotic diseases with an anticoagulant drug it is important that an adequate dose is given to avoid occurrence or recurrence of thrombosis, without increasing the risk of bleeding and other adverse events to unacceptable levels. The aim of this thesis was to develop mathematical models that describe the dose-concentration (pharmacokinetic) and concentration-response (pharmacodynamic) relationships of direct thrombin inhibitors, in order to estimate optimal dosages for treatment and long-term secondary prevention of venous thromboembolism (VTE). READ MORE

  5. 5. The treatment of back and neck pain. Cost and utility

    Author : Elisabeth K Hansson; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Keywords : cost of illness; cost-utility; disability; disc surgery; low back pain; neck pain; predictors; quality of life; return to work; sick-listing;

    Abstract : Aims To analyze the costs and effects of treatments used to return persons sick-listed due to back or neck problems to work, and to perform a cost-utility analysis of such treatments.Study population and Methods Included were men and women between the ages of 18 and 59 years who were employed but sick-listed (100 %) for at least 28 days due to a low back or neck diagnosis. READ MORE