Sökning: "EPR"

Visar resultat 6 - 10 av 96 avhandlingar innehållade ordet EPR.

  1. 6. Educational Process Reflection (EPR) : a professional development model aimed at creating a reflective space in Swedish pre-school practice

    Författare :Kerstin Bygdeson-Larsson; Gaby Weiner; Kath Green; Umeå universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Teacher research; Professional development; Activity theory; Inclusive environment; Democracy; Intersubjectivity; Health promotion; Peer play and interaction; Pedgogical work; Pedagogiskt arbete;

    Sammanfattning : .... LÄS MER

  3. 7. Development of sensitive EPR dosimetry methods

    Författare :Håkan Gustafsson; Eva Lund; Anders Lund; Dag Rune Olsen; Linköpings universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Electron paramagnetic resonance EPR ; Formic acids; pharmacology; Lithium; Nickel; Radiometry; Rhodium; Pharmaceutical chemistry; Farmaceutisk kemi;

    Sammanfattning : Electron paramagnetic resonance (EPR) dosimetry using the well established dosimeter material alanine is a generally accepted dosimetric method for measurements of high absorbed doses. Alanine EPR dosimetry is however not sensitive enough for high precision measurements of low (< 5 Gy) absorbed doses using reasonably measurement times and small dosimeters. LÄS MER

  4. 8. Probabilistic Analysis of the EPR-Bohm Experiment

    Författare :Guillaume ADENIER; Växjö universitet; []
    Nyckelord :EPR-Bohm Experiment; Bell s theorem; Local Realism; Fair Sampling;

    Sammanfattning : Bell's Theorem was developed on the basis of considerationsinvolving a linear combination of spin correlation functions, eachof which has a distinct pair of arguments. The simultaneouspresence of these different pairs of arguments in the sameequation is investigated, and the implicit counterfactualassumption in Bell's theorem is discussed. LÄS MER

  5. 9. Trapping Tyrosine Z : Exploring the Relay between Photochemistry and Water Oxidation in Photosystem II

    Författare :Johannes Sjöholm; Stenbjörn Styring; Fikret Mamedov; A. William Rutherford; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Photosystem II; Tyrosine Z; EPR; proton-coupled electron transfer; hydrogen bond; pH;

    Sammanfattning : Photosystem II is unique! It remains the only enzyme that can oxidize water using light as energy input. Water oxidation in photosystem II is catalyzed by the CaMn4 cluster. The electrons extracted from the CaMn4 cluster are transferred to P680+ via the tyrosine residue D1-Tyr161 (YZ). LÄS MER

  7. 10. EPR Studies of Photosystem II : Characterizing Water Oxidizing Intermediates at Cryogenic Temperatures

    Författare :Kajsa G.V. Havelius; Stenbjörn Styring; Holger Dau; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biochemistry; Biokemi;

    Sammanfattning : The principles of natures own light-driven water splitting catalyst, Photosystem II (PSII), can in the future inspire us to use water as electron and proton source to generate light-driven H2 production. To mimic this challenging step, it is important to understand how the enzyme system can oxidize water. LÄS MER