Sökning: "low-density gel"

Visar resultat 1 - 5 av 14 avhandlingar innehållade orden low-density gel.

  1. 1. Characterization and Clinical Application of Normoxic Polymer Gel in Radiation Therapy Dosimetry

    Författare :Anna Karlsson; Malmö Medicinsk strålningsfysik; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; 3D dose verification; uncertainties; low-density gel; fractionation dependence; characterization; normoxic gel; polymer gel dosimetry; MRI; Physics; Fysik;

    Sammanfattning : Cancer is one of the main causes of death in the world, particularly in developing countries and is considered as a major public health problem. Radiation therapy has been an important modality for treatment of cancer for many decades. LÄS MER

  3. 2. Low density lipoprotein (LDL) heterogeneity : implications for cardiovascular disease and genetic influence

    Författare :Camilla Skoglund Andersson; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Low density lipoprotein; gradient gel electrophoresis; intima-media thickness; atherosclerosis; myocardial infarction; low density lipoprotein oxidation; cholesteryl ester transfer protein; lipoprotein lipase; hepatic lipase; apolipoprotein E; apolipoprotein B; microsomal triglyceride transfer protein; genetics; lipoproteins; metabolism;

    Sammanfattning : The low density lipoprotein (LDL) particle population is heterogeneous with regard to several structural and functional properties that may influence its atherogenic potential. A preponderance of small, dense LDL is associated with an increased risk of coronary heart disease (CHD), and also predicts future CHD events. LÄS MER

  4. 3. Radiotherapy Gel Dosimetry: Development and Application of Normoxic Polymer Gels

    Författare :Helen Gustafsson; Malmö Medicinsk strålningsfysik; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Clinical physics; radiology; tomography; medical instrumentation; Klinisk fysiologi; tomografi; medicinsk instrumentering; Radiofarmaceutisk teknik; Radiopharmaceutical technology; proton; LET; FT Raman spectroscopy; MRI; normoxic gel; IMRT; 3D verification; polymer gel dosimetry; radiologi;

    Sammanfattning : In many radiotherapy applications, true three-dimensional dosimetry with good spatial resolution that can be achieved in a single measurement would be of great value. Polymer gel dosimetry fulfils many of the demands on such a system. In this study, methods to facilitate the implementation of gel dosimetry have been investigated. LÄS MER

  5. 4. Edible and Biodegradable Whey Protein Films as Barriers in Foods and Food Packaging

    Författare :Martin Anker; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; water vapor permeability; critical gel concentration; BETA-lactoglobulin; whey protein; mechanical properties; moisture content; microstructure; glass transition temperature; oxygen permeability;

    Sammanfattning : This thesis focuses on the characterization of whey protein films. The films were cast from heated aqueous solutions and dried in a climate room at 23 °C and 50% relative humidity for 16 h. The microstructure of the films was found to be dependent on the protein concentration, the plasticizers, and the pH. LÄS MER

  7. 5. Triglyceride-rich lipoproteins : postprandial metabolism and composition in relation to atherosclerosis

    Författare :Johan Björkegren; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :triglyceride-rich lipoproteins; very low density lipoproteins; chylomicrons; lipoprotein remnants; apolipoprotein E and C; cholesterol; atherosclerosis;

    Sammanfattning : A relationship between postprandial lipaemia and coronary heart disease (CHD) was established as early as the 1950s. Since then, most attention has been paid to postprandial triglyceride-rich lipoproteins (TRLs) of intestinal origin, i.e. chylomicrons and chylomicron remnants, whereas TRLs of hepatic origin, i. LÄS MER