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Spring 2010
Heterogeneity of surfaces is often included in mathematical treatments of colloid transport and deposition as an afterthought, if at all. Most previous models of colloid transport and deposition have employed idealizations and simplifications such as assuming smooth collector surfaces with...
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An examination of parent-child dyadic interaction and the impact of a parent-training program designed to support the language development of toddlers diagnosed with autism spectrum disorder (ASD)
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Parents can effectively facilitate positive child behaviour change (Kaiser & Hancock, 2003). Their inclusion as interventionists is an essential component of autism intervention (NRC, 2001) and represents a natural step toward consistent early intervention. However, what constitutes effective...
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Interactions between Amyloid Precursor Protein and Prion Protein Impact Cell Adhesion and Apoptosis in the Developing Zebrafish
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We report here that knockdown of either amyloid precursor protein (APP) or prion protein (PrP) in the zebrafish produces an overt dose-dependent phenotype characterized by systemic morphological defects and CNS cell death. We report findings that the zebrafish PrP-1 gene genetically interacts...
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Spring 2011
In this thesis, measurement and analysis of colloidal forces between an atomic force microscope (AFM) probe and a topographically patterned substrate are reported. The energy between the patterned substrate and a smooth flat plate was characterized mathematically using Surface Element Integration...
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Understanding stability of water-in-diluted bitumen emulsions by colloidal force measurements
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Removal of emulsified water is a challenge in oil sands and heavy oil processing. The flocculation and coagulation of emulsified water droplets depend on the interactions between the water droplets covered mainly by asphaltenes and oil-contaminated fine solids. To quantitatively evaluate the...
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Fall 2011
Proteins, which participate in virtually every process within cells, implement many of their functions through interactions with various ligands. Although a substantial effort in characterization and prediction of protein-ligand interactions was observed in the past two decades, these subjects...
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Conductive Atomic Force Microscopy Study of Electron Transport Through Diazonium Derived Films and Mixed – Mode Bonded Layers on Gold and Carbon Surfaces
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For Molecular Electronics to become a viable replacement or complitment to current elec- tronic devices a fundamental understanding of device operation and functionality is needed. This work explores electron transport through diazonium derived molecular junctions via conductive atomic force...
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Interactions Between Host Trees, Bacteria, and Fungi: Impacts on Mountain Pine Beetle (Dendroctonus ponderosae) Reproduction
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Warming winter trends due to climate change have allowed for a range expansion of the mountain pine beetle, and the beetle now threatens Canada’s economically and ecologically important jack pine forests. The beetle’s success in jack pine trees will depend upon successful colonization of the...
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Fall 2013
Gypsum supersaturation in process water is known to have detrimental effects on flotation performance of sulphide minerals. The motivation of this research is to develop a better understanding of the impact of gypsum supersaturation in process water on sphalerite flotation. For this purpose, this...