Sökning: "Hazard Functions"

Visar resultat 21 - 25 av 31 avhandlingar innehållade orden Hazard Functions.

  1. 21. Environmental, health and safety assessment of phase-change solvents for post combustion CO2 capture

    Författare :Gulnara Shavalieva; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; phase-change solvents; carbon capture; CAMD; LCA; EHS;

    Sammanfattning : A novel class of solvents exhibiting liquid-liquid phase separation upon reaction with CO2 and/or change in temperature, promises significant reduction of energy requirement of the post combustion capture by chemical absorption. However, proceeding to a large-scale application of novel materials requires holistic evaluation of the aspects related to human health, safety, and environmental impacts currently missing for phase-change solvent alternatives. LÄS MER

  3. 22. Heart failure in primary health care : special emphasis on natriuretic peptides in the elderly

    Författare :Urban Alehagen; Norman Sharpe; Linköpings universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : Background: This thesis focuses on heart failure among elderly patients in the community who usually are not included in studies on heart failure. The heart failure syndrome is an increasing problem in Western society. LÄS MER

  4. 23. Estimation of risk in the field of osteoporosis

    Författare :Helena Johansson; Göteborgs universitet; []
    Nyckelord :osteoporosis; fracture; bone mineral density; ; clinical risk factors; FRAX; Poisson model; 10 year probability; mortality; vitamin D; adiponectin;

    Sammanfattning : Introduction: Osteoporosis has been recognised as an established and well-defined disease that affects more than 75 million people in the United States, Europe and Japan. Osteoporosis has been operationally defined by the WHO on the basis of bone mineral density (BMD) assessment. LÄS MER

  5. 24. Subsyndromal Depression in Very Old Persons

    Författare :Mikael Ludvigsson; Anna Milberg; Jan Marcusson; Lisa Ekselius; Linköpings universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Sammanfattning : Background: Subsyndromal depression (SSD) or subthreshold depression is a common affective condition that can be described as depressiveness below the threshold of what is called a syndromal or a major depressive episode. The point prevalence for SSD has been reported to be about 10% in the community, or about two or three times higher than the prevalence for syndromal depression. LÄS MER

  7. 25. Development and application of competing risks and multi-state models in cancer epidemiology

    Författare :Nikolaos Skourlis; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Competing risks and multi-state models allow us to study complex disease settings and answer composite research questions and should be used more widely in epidemiology. This thesis aims to explore the competing risks and multi-state models areas using flexible parametric survival models (FPSMs), studying several aspects, such as the choice of timescale, choice of multi-state structure, sharing information across transitions by imposing restrictions in the estimation of the parameters, as well as communicating the results of such models to a wider audience and evaluating the use of recurrent multi-state structures in the area of recurrent events when a terminal event is present. LÄS MER