Sökning: "Protons"

Visar resultat 21 - 25 av 286 avhandlingar innehållade ordet Protons.

  1. 21. Effects of high-energy protons on healthy organs and malignant tumours : including a study of radiation protection by local hypoxia

    Författare :Stig Sténson; Uppsala universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : .... LÄS MER

  3. 22. Collisions between positive K-mesons and protons at 3 GeV/c

    Författare :Pehr Sällström; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : .... LÄS MER

  4. 23. Investigations of nuclear structure and interaction symmetries with high energy protons

    Författare :Gunnar Tibell; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER

  5. 24. Development of Monte Carlo track structure simulations for protons and carbon ions in water

    Författare :Thiansin Liamsuwan; Hooshang Nikjoo; Shuzo Uehara; David Liljequist; Michael Dingfelder; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Radiation track structure; Monte Carlo simulations; interaction cross sections; classical trajectory Monte Carlo CTMC method; microdosimetry; ion beams; Medical Radiation Physics; medicinsk strålningsfysik;

    Sammanfattning : The goal of radiation therapy is to eradicate tumour cells while minimising radiation dose to healthy tissues. Ions including protons and carbon ions have gained increasing interest for cancer treatment. LÄS MER

  7. 25. Effects of Protons and Small Alcohols on the Oxygen-Evolving Complex of Photosystem II

    Författare :Paulina Geijer; Biokemi och Strukturbiologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; EPR; pH; methanol; S3; S2; S0; YZ; Mn cluster; Oxygen-evolving complex; S-states; Biochemistry; Metabolism; Biokemi; metabolism;

    Sammanfattning : Higher plants and algae use oxygenic photosynthesis to convert solar energy to reducing equivalents and chemical energy. The ultimate electron donor to oxygenic photosynthesis is water. Oxidation of water to oxygen occurs in the oxygen-evolving complex (OEC) in Photosystem II (PSII). The OEC is composed of four Mn atoms, Ca2+ and Cl-. LÄS MER