Sökning: "body proxy"

Visar resultat 16 - 20 av 24 avhandlingar innehållade orden body proxy.

  1. 16. Managing time with dementia : assessment and early detection of the need for time-related interventions and experiences of time assistive technology

    Författare :Ann-Christine Persson; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Background: Dementia is one of the most common global diseases. One frequently occurring consequence of dementia is time-related problems, and persons with dementia often need support from significant others to manage time in daily life. LÄS MER

  3. 17. Methodological and clinical studies on insulin resistance in childhood

    Författare :Sophia Rössner; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Insulin resistance is a condition in which adequate amounts of insulin fail to give an adequate response in target tissues. This thesis is based on five different studies, aiming to investigate different aspects of insulin resistance and the assessment methods thereof in children and in adults. LÄS MER

  4. 18. Exposure to perfluorinated alkyl substances and health effects in pregnant women and their children

    Författare :Matilda Ebel; Avdelningen för arbets- och miljömedicin; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; perfluorinated alkyl substances; epidemiology; prenatal exposure; maternal health; child health; register studies;

    Sammanfattning : Per- and polyfluorinated alkyl substances (PFAS) are chemicals that have gained attention during the last years. There are about 10,000 different PFAS compounds, and due to their unique chemical characteristics, PFAS has been used in a variety of industrial applications and household products since the 1950s. LÄS MER

  5. 19. Characterization of the MRI patient exposure environment and exposure assessment methods for magnetic fields in MRI scanners

    Författare :Jennifer Frankel; Jonna Wilén; Anders Garpebring; Johan Olsrud; Peter Lundberg; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; electromagnetic fields; exposure assessment; magnetic resonance imaging; switched gradient fields; radiofrequency fields; exposure metrics; radiofysik; radiation physics;

    Sammanfattning : Magnetic resonance imaging (MRI) has become one of the most common imaging modalities available in modern medicine, and it is an indispensable diagnostic tool thanks to the unparalleled soft-tissue contrast and high image resolution. It is also a unique exposure environment consisting of a complex mix of magnetic fields. LÄS MER

  7. 20. The micrometeorite flux to Earth through the Phanerozoic Eon : Reconstructed using sediment-dispersed extraterrestrial spinels

    Författare :Ellinor Martin; Kärnfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; chromite; chrome spinel; micrometeorites; Phanerozoic; asteroid breakup; ordinary chondrites; 3He anomalies; lunar impacts; ice age; impact craters; zircons;

    Sammanfattning : The purpose of this thesis is to add an astronomical component to the history and evolution of Earth by reconstructing the micrometeorite flux to Earth at different time intervals during the Phanerozoic Eon, using sediment-dispersed extraterrestrial spinel group minerals as a proxy. Chromite and chrome spinel are common refractory members of the spinel group, occurring in both extraterrestrial and terrestrial rocks. LÄS MER