Sökning: "David tilly"

Hittade 2 avhandlingar innehållade orden David tilly.

1. 1. Probabilistic treatment planning based on dose coverage : How to quantify and minimize the effects of geometric uncertainties in radiotherapy

   Författare :David Tilly; Anders Ahnesjö; Erik Grusell; Uwe Oelfke; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Radiotherapy; treatment simulation; probabilistic planning; dose calculation; probabilistic optimization; statistical shape model; Medicinsk radiofysik; Medical Radiophysics;

   Sammanfattning : Traditionally, uncertainties are handled by expanding the irradiated volume to ensure target dose coverage to a certain probability. The uncertainties arise from e.g. the uncertainty in positioning of the patient at every fraction, organ motion and in defining the region of interests on the acquired images. LÄS MER

3. 2. No more water, but fire next time : The conflict between environmental aims and social claims in Louisiana's post-Katrina coastal planning

   Författare :David O Byrne; LUCSUS; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Coastal management; Environmental movements; Deltaic systems; Problem-solving research; Sustainable development; Mississippi River Delta;

   Sammanfattning : There are two levels to this thesis, the examination of the particular case and the exposition of the general approach. The case the thesis deals with is Louisiana’s coastal land-loss crisis and what can and should be done about it. LÄS MER