Sökning: "Torbjörn Larsson"

Visar resultat 26 - 30 av 32 avhandlingar innehållade orden Torbjörn Larsson.

  1. 26. Models and Methods for Costly Global Optimization and Military Decision Support Systems

    Författare :Nils-Hassan Quttineh; Kaj Holmberg; Torbjörn Larsson; Kevin Wood; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The thesis consists of five papers. The first three deal with topics within costly global optimization and the last two concern military decision support systems. LÄS MER

  3. 27. Contributions within two topics in integer programming : nurse scheduling and column generation

    Författare :Elina Rönnberg; Torbjörn Larsson; Marco Lübbecke; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Integer programming can be used to provide solutions to complex decision and planning problems occurring in a wide variety of situations. The application of integer programming to solve real world problems requires a modelling phase in which the problem at hand is translated into a mathematical description of the problem, and a solution phase that aims at developing methods for producing solutions to the mathematical formulation of the problem. LÄS MER

  4. 28. Methods and Applications in Integer Programming : All-Integer Column Generation and Nurse Scheduling

    Författare :Elina Rönnberg; Torbjörn Larsson; Fredrik Altenstedt; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; integer programming; column generation; set partitioning problems; quasi-integrality; nurse scheduling; Optimization; systems theory; Optimeringslära; systemteori;

    Sammanfattning : Integer programming can be used to provide solutionsto complex decision and planning problems occurring in a wide varietyof situations. Applying integer programming to a real life problembasically involves a first phase where a mathematical model isconstructed, and a second phase where the problem described by themodel is solved. LÄS MER

  5. 29. I feel terrible! Can you measure that? : Exploring psychophysiological stress responses and their interactions with performance, subjective reports and health status

    Författare :Anna Sjörs; Torbjörn Falkmer; Björn Gerdle; Britt Larsson; Ulf Lundberg; Linköpings universitet; []
    Nyckelord :psychophysiology; motion sickness; chronic pain; stressor; performance; autonomic responses; HPA axis; MEDICINE; MEDICIN;

    Sammanfattning : Despite recent research advances, there are still several common medical conditions whose underlying mechanisms are poorly understood. In conditions with few or diffuse physical findings, it can be difficult to diagnose and determine the state of the condition and its effects on working ability or performance, and the health care practitioners have to rely on the patient’s self-reports. LÄS MER

  7. 30. Homocysteine and its determinants in relation to cardiovascular risk factors and myocardial infarction

    Författare :Elisabet Söderström; Johan Hultdin; Torbjörn K. Nilsson; Anders Larsson; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Homocysteine; folate; myocardial infarction; apolipoprotein; risk factors; cotinine; nicotine; tobacco; CTH; MTHFR; renal insufficiency; glomerular filtration rate; creatinine; cystatin C; shrunken pore syndrome; epidemiology; Clinical Chemistry; klinisk kemi;

    Sammanfattning : Background: Globally, cardiovascular diseases (CVD), including myocardial infarction (MI) and stroke, are the leading cause of illness and death and constitute a significant part of the disease burden in Sweden and Western Europe. Age, hypertension, smoking, obesity, dyslipoproteinemia, diabetes, and impaired renal function are considered established risk factors for CVD. LÄS MER