Sökning: "Åsa Larsson"

Visar resultat 1 - 5 av 38 avhandlingar innehållade orden Åsa Larsson.

  1. 1. Dose Plan Optimization in HDR Brachytherapy using Penalties : Properties and Extensions

    Författare :Åsa Holm; Torbjörn Larsson; Åsa Carlsson Tedgren; Göran Sporre; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; MATHEMATICS; MATEMATIK;

    Sammanfattning : High dose-rate (HDR) brachytherapy is a specific type of radiotherapy used to treat tumours of for example the cervix, prostate, and breasts. In HDR brachytherapy applicators are implanted into or close to the tumour volume. A radioactive source is moved through these applicators and stops at certain positions, known as dwell points. LÄS MER

  3. 2. Mathematical Optimization of HDR Brachytherapy

    Författare :Åsa Holm; Torbjörn Larsson; Åsa Carlsson Tedgren; Jeroen Beliën; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : One out of eight deaths throughout the world is due to cancer. Developing new treatments and improving existing treatments is hence of major importance. In this thesis we have studied how mathematical optimization can be used to improve an existing treatment method: high-dose-rate (HDR) brachytherapy. LÄS MER

  4. 3. A structural view on conceptual change : Integration, differentiation, and contextualization as fundamental aspects of individual meaning making

    Författare :Åsa Larsson; Jon Ohlsson; Erno Lehtinen; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; conceptual development; conceptual change; coherence; contextualization; pedagogik; Education;

    Sammanfattning : Conceptual development and conceptual change processes are described by a longitudinal study on preschool children’s conception of the earth. Conceptual change is often described as a causal process in which changes in an embraced system of beliefs result in a new system of beliefs. LÄS MER

  5. 4. Everyday life amongst the oldest old : descriptions of doings and possession and use of technology

    Författare :Åsa Larsson; Jan-Erik Hagberg; Lena Haglund; Louise Nygård; Linköpings universitet; []
    Nyckelord :Odest old; ageing research; everyday technology; gerontechnology; environmental gerontology; everyday life; ADL; occupational therapy; MEDICINE; MEDICIN;

    Sammanfattning : The general aim of the present thesis is to expand knowledge about the everyday lives of the oldest old (85+) living independently and to improve and deepen the understanding of their doings and possession and use of technology. The everyday lives of the oldest old represent, in many aspects an under-researched area, partly because this age group is seldom included in national surveys regarding living conditions and time use. LÄS MER

  7. 5. Timber-concrete hybrid structural systems : Examples, long and short-term dynamic monitoring, and numerical analysis

    Författare :Carl Larsson; Michael Dorn; Åsa Bolmsvik; Thomas K. Bader; Henrik Danielsson; Linnéuniversitetet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Timber-Concrete Hybrid Structures; Timber Design; Structural Dynamics; Structural Health Monitoring; Byggteknik; Civil engineering;

    Sammanfattning : Timber-concrete hybrid buildings are an innovative solution to increase the amount of timber materials in modern buildings. Due to its lower impact on the environment than materials like steel and concrete, the demand for timber products is rising as the construction industry aims to decrease its environmental footprint. LÄS MER