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An Experimental Investigation Of Autonomy Support Versus Thwart In An Exergaming Context, Amanda Joy Weathers-Meyer
An Experimental Investigation Of Autonomy Support Versus Thwart In An Exergaming Context, Amanda Joy Weathers-Meyer
LSU Master's Theses
Considerable literature in self-determination theory (SDT) establishes satisfaction of basic psychological needs related to competence, autonomy, and relatedness as important determinants of well-being and motivation. Despite the abundance of SDT literature, few studies provide an investigation of autonomy support and autonomy thwart within an experimental design. Using SDT as a guiding framework, the effects of autonomy support (AS) versus autonomy thwart (AT) were examined within an exergaming context. Specifically, this study investigated the impact of autonomy support / thwart on five variables: perceived autonomy need satisfaction and autonomy thwart, affect, game performance, and willingness to recommend the study to others. …
Product Parameters Optimization For Double Purge Of C-Magma Integrated With Conventional Three-Boiling Crystallization Scheme To Improve Raw Sugar Whole Color, Luz Stella Polanco
Product Parameters Optimization For Double Purge Of C-Magma Integrated With Conventional Three-Boiling Crystallization Scheme To Improve Raw Sugar Whole Color, Luz Stella Polanco
LSU Doctoral Dissertations
Efficient crystallization in raw sugar production is the result of a combination of factors and responses that meet specific criteria. Matching a sugar quality standard, maximizing sugar yield, maximizing crystallization equipment capacity and minimizing heat requirement are all necessary optimization criteria. A double centrifugation or purge of C-magma is intended to improve raw sugar whole color by the reduction of color recirculation with the sugar crystal. Combining a three boiling crystallization scheme with a second centrifugation after the last crystallization stage required optimizing the input/output product parameters (purities) and the location of the liquid recycle component (double purge molasses) for …
Experimental Designs For Model Discrimination And Uncertainty Reduction In Groundwater Modeling, Hai Van Pham
Experimental Designs For Model Discrimination And Uncertainty Reduction In Groundwater Modeling, Hai Van Pham
LSU Doctoral Dissertations
Groundwater systems are complex and subject to multiple interpretations due to a lack of sufficient information. Different propositions (or alternatives) are often proposed to represent uncertain model components resulted in many conceptual models using the same data. Yet considering too many models may lead to high prediction uncertainty and may lose the purpose of model development. To decrease the prediction uncertainty due to conceptual model uncertainty, two experimental designs are proposed. The first experimental design intends to identify model propositions in each uncertain model component. A discrimination criterion is developed based on posterior model probability. Bayesian model averaging (BMA) is …