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  • High quantum-yield phosphors via quantum splitting and upconversion

    Creator:
    Jeong, Joayoung
    Abstract:
    The Gd3+ ion has been used to induce quantum splitting in luminescent materials by using cross-relaxation energy transfer (CRET). In Nd:LiGdF4, quantum splitting results from a two-step CRET between Gd3+ and Nd3+, first involving a transition 6G→6I on Gd3+ and an excitation within the 4f3 configuration of Nd3+ followed by...
    Resource Type:
    Dissertation
    Full Text:
    , Michael M. Lerner, William W. Warren, Jr., and John E. Baham for their encouragement in helping me to

  • Functions and regulation of cytokinin glucosyltransferases

    Creator:
    Pineda Rodó, Albert
    Abstract:
    Cytokinins can be conjugated to N- and O-glucosides. While N-glucosylation generally leads to irretrievable loss of activity, O-glucosides are thought to play an important role in cytokinin storage and homeostasis since they can be hydrolyzed to the corresponding aglycones. The first zeatin O-glycosyltransferase genes isolated were ZOG1 and ZOX1 from...
    Resource Type:
    Dissertation

  • Likelihood analysis of the multivariate ordinal probit model for repeated and spatial ordered categorical responses

    Creator:
    Li, Yonghai
    Abstract:
    This dissertation is about the likelihood analysis of ordered categorical responses in a longitudinal/spatial study, meaning regression-like analysis when the response variable is categorical with ordered categories, and is measured repeatedly over time or space on the experimental or sampling units. Particular attention is given to the multivariate ordinal probit...
    Resource Type:
    Dissertation
    Full Text:
    : __________________________ Daniel W. Schafer This dissertation is about the