Search for dissertations about: "proton"

Showing result 1 - 5 of 664 swedish dissertations containing the word proton.

  1. 1. Choreography of a proton pump Studies of charge-transfer reactions in cytochrome c oxidase

    University dissertation from Stockholm : Department of Biochemistry and Biophysics, Stockholm University

    Author : Jóhanna Vilhjálmsdóttir; Stockholms universitet.; [2019]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; heme-copper oxidase; cytochrome c oxidase; respiration; proton pump; electron transfer; proton transfer; proton-transfer pathway; midpoint potential; proton-pumping mechanism; biokemi; Biochemistry;

    Abstract : In the last step of cellular respiration, electrons from metabolites are transferred to molecular oxygen, mediated by the enzyme complexes of the respiratory chain. Some of these enzyme complexes couple these redox reactions to formation of an electrochemical proton gradient across the cell membrane. The proton gradient is used e.g. READ MORE

  2. 2. Proton plan evaluation a framework accounting for treatment uncertainties and variable relative biological effectiveness

    University dissertation from Stockholm : Department of Physics, Stockholm University

    Author : Jakob Ödén; Stockholms universitet.; [2017]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Proton therapy; Relative biological effectiveness; Robustness evaluation; Plan selection; medicinsk strålningsfysik; Medical Radiation Physics;

    Abstract : .... READ MORE

  3. 3. Electron and proton transfer in cytochrome c oxidase

    University dissertation from Stockholm : Department of Biochemistry and Biophysics, Stockholm University

    Author : Magnus Brändén; Stockholms universitet.; [2003]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; cytochrome c oxidase; electron transfer; proton transfer; proton; MEDICINE Chemistry Biochemistry; MEDICIN Kemi Biokemi; biokemi; Biochemistry; Biophysics; biofysik;

    Abstract : This doctoral thesis describes results from studies on the mechanisms by which the enzyme cytochrome c oxidase catalyses the reduction of oxygen to water. Cytochrome c oxidase is the last integral enzyme complex of the socalled respiratory chain in the mitochondrial inner membrane (plasma membrane of bacteria). READ MORE

  4. 4. Parametric Model for Astrophysical Proton-Proton Interactions and Applications

    University dissertation from Stockholm : KTH

    Author : Niklas Karlsson; KTH.; [2007]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; astrophysics; gamma rays; proton-proton interactions; cosmic rays; NATURAL SCIENCES Physics Astronomy and astrophysics; NATURVETENSKAP Fysik Astronomi och astrofysik;

    Abstract : Observations of gamma-rays have been made from celestial sources such as active galaxies, gamma-ray bursts and supernova remnants as well as the Galactic ridge. The study of gamma rays can provide information about production mechanisms and cosmic-ray acceleration. READ MORE

  5. 5. Nitric Oxide Reductase from Paracoccus denitrificans A Proton Transfer Pathway from the “Wrong” Side

    University dissertation from Stockholm : Institutionen för biokemi och biofysik

    Author : Ulrika Flock; Stockholms universitet.; [2008]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; denitrification; nitric oxide reductase; heme copper oxidase superfamily; divergent member; proton transfer; electron transfer; single turnover; spectroscopy; periplasm; glutamate; proton pathway; NATURAL SCIENCES Chemistry Biochemistry; NATURVETENSKAP Kemi Biokemi; biokemi; Biochemistry;

    Abstract : Denitrification is an anaerobic process performed by several soil bacteria as an alternative to aerobic respiration. A key-step in denitrification (the N-N-bond is made) is catalyzed by nitric oxide reductase (NOR); 2NO + 2e- + 2H+ → N2O + H2O. READ MORE