Sökning: "radiation doses"
Visar resultat 1 - 5 av 187 avhandlingar innehållade orden radiation doses.
1. Cellular effects of ionizing radiation : Relevant for understanding cancer risk after medical and environmental radiation exposures
Sammanfattning : Radiation-induced cancers are stochastic and delayed effects of exposure to ionizing radiation. The dose-response relationship for radiation-induced cancers at both low dose/low dose rates and high doses (doses encountered during radiotherapy) remains unclear. LÄS MER
2. Accurate description of heterogeneous tumors for biologically optimized radiation therapy
Sammanfattning : In this thesis, a model of tissue oxygenation is presented, that takes into account the heterogeneous nature of tumor vasculature. Even though the model is rather simple, the resulting oxygen distributions agree very well with clinically observed oxygen distributions for most tumors and healthy normal tissues. LÄS MER
3. Optimizing experimental radioimmunotherapy : investigating the different mechanisms behind radiation induced cell deaths
Sammanfattning : Background. Radiation therapy is an important treatment regimen for malignant disease. Radiation therapy uses ionizing radiation to induce DNA damage in tumor cells in order to kill them. LÄS MER
4. Ethical aspects of radiation protection
Sammanfattning : This aim of this thesis is to examine ethical aspects of radiation protection from ionizing radiation. Radiation protection is the professional field that deals with the protection of humans and the environment from the harmful effects of radiation. LÄS MER
5. Radiation induced biomarkers of individual sensitivity to radiation therapy
Sammanfattning : Fifty percent of solid cancers are treated with radiation therapy (RT). The dose used in RT is adjusted to the most sensitive individuals so that not more than 5% of the patients will have severe adverse healthy tissue effects. LÄS MER