• Characterization of the Surface Oxidation Layer of Niobium 

  Yasaei, Saba (2023-05-25)

  Niobium is widely used in quantum computing devices and charged particle accelerators, while it is in superconducting state. In these applications the niobium surface is subjected to very different electric field strengths ...
• Modelling the global impact of carbon leaching from marine plastic debris on oceanic and atmospheric tracers 

  Gurgacz-Safianowicz, Natalia (2023-05-17)

  Since the beginning of its large-scale production in the early twentieth century, plastic remains a critical material used throughout several industries. Despite serving many benefits, plastics are resistant to degradation ...
• The Microbial Ecology of Nitrous Oxide Cycling in Marine Environments: Linking community dynamics to ecosystem processes 

  Jameson, Brett Douglas (2023-05-08)

  Nitrous oxide (N2O) is an increasingly abundant, atmospheric trace-gas that contributes to climate change and stratospheric ozone depletion. Marine environments act as a net source of N2O to the atmosphere at global scales ...
• Convex Optimization Methods for Bounding Lyapunov Exponents 

  Oeri, Hans (2023-05-01)

  In dynamical systems, the stability of orbits is quantified by Lyapunov exponents (LEs), which are computed from the average rate of divergence of trajectories. We develop techniques for computing sharp upper bounds on the ...
• Ectomycorrhizal fungal endemism and rainforest nutrition in Pacific Northeast 

  McPolin, Marie Claire (2023-05-01)

  Considerable research exists on how niche processes and spatial trade-offs structure the species richness observed in ectomycorrhizal fungal (EMF) communities, but little attention has been paid to how this might relate ...
• How variability in late Neoproterozoic shallow water carbonate δ13Ccarb values and modern fluvial δ13CDIC values may impact fundemental assumptions in carbon isotope stratigraphy 

  Wren, Olivia (2023-04-28)

  The carbon isotope composition of ancient shallow water carbonates (δ13Ccarb) serves as the primary archive of ocean chemistry for a majority of Earth history and provides insight into the dynamics of global carbon cycling ...
• Flurorescence Study of the Microenvironment of Pyrene Molecules Loaded into Polycaprolactone-block-poly(ethylene oxide) Polymer Nanoparticles and Implications for Drug Delivery 

  Khokhar, Anupjot Singh (2023-04-28)

  Polymer nanoparticles (PNPs) come across as the next generation drug delivery vehicles owing to their advantages such as biocompatibility, improved therapeutic efficacy and reduced toxicity. These biodegradable nanocarriers ...
• Orientation selectivity in the population of ON-OFF direction-selective ganglion cells in the mouse retina 

  Ravi Chander, Prathyusha (2023-04-28)

  In the mammalian retina, the orientation-selective (OS) and direction-selective (DS) information are generally thought to be relayed to higher visual centers via distinct ganglion cell types. Contrary to this notion, here ...
• Charting a future for emerging infectious disease modelling in Canada 

  Lewis, Mark A; Brown, Patrick; Colijn, Caroline; Cowen, Laura; Cotton, Christopher; Day, Troy; Deardon, Rob; Earn, David; Haskell, Deirdre; Heffernan, Jane; Leighton, Patrick; Murty, Kumar; Otto, Sarah; Rafferty, Ellen; Tuohy, Carolyn Hughes; Wu, Jianhong; Zhu, Huaiping (2023-04-26)

  We propose an independent institute of emerging infectious disease modellers and policy experts, with an academic core, capable of renewing itself as needed. This institute will combine science and knowledge translation ...
• A Uniqueness Theorem for C*-algebras of Hausdorff Étale Groupoids 

  Goerke, Gavin (2023-04-27)

  In this thesis we study the ideal intersection property for inclusions of C*-algebras C*(H)↪C*(G) induced from a family of open subgroupoids {H} of a locally compact Hausdorff étale groupoid G. For such a family of open ...
• Structurally diverse functionalized hosts for the binding of cationic drugs and metabolites 

  Warmerdam, Zoey (2023-04-27)

  The goal for my thesis is to learn about structure-activity relationships between sulfonatocalix[4]arene host and small molecule targets, to extend on the fundamental knowledge that is present in today’s literature. This ...
• Exploring Hydrophosphination Mediated by Molybdenum Phosphenium Complexes 

  Muir, Vanessa (2023-04-27)

  Metal-catalyzed hydrophosphination (HP) has seen huge growth over the last two decades. Almost all catalysts rely on intermediates containing phosphido ligands (PR2⁻). The nucleophilicity of these ligands has resulted in ...
• Glacial Isostatic Adjustment Modelling for Crustal Motion in North America 

  Brierley-Green, Connor (2023-04-27)

  Due to the expansion and retreat of the large ice sheets that covered most of Canada and parts of the northern United States during the Last Glacial Maximum (LGM), the surface of North America presently exhibits vertical ...
• Development of Tau Polarimetry for measuring beam polarization in e+e- colliders 

  Miller, Caleb (2023-04-26)

  The Belle II experiment is considering the addition of longitudinal polarization to the e- beam of SuperKEKB. The addition of beam polarization would allow for a number of world leading electroweak precision measurements, ...
• Unveiling hidden mergers: quantifying merger prevalence in post-starburst galaxies and the efficacy of common merger identification techniques 

  Wilkinson, Scott (2023-04-24)

  Numerical simulations and observations agree that galaxies tend to evolve from star-forming spiral galaxies to quiescent ellipticals. Post-starburst (PSB) galaxies, defined as having experienced a recent burst of star ...
• Development of enabling technologies for ultra-high dose rate and spatially fractionated radiation therapy 

  Esplen, Nolan Matthew (2023-04-21)

  Despite the important advances that have been made in radiation therapy (RT) over recent decades, there remains an ongoing demand for treatments which are capable of widening the therapeutic window. This might be achieved, ...
• Three dimensional spheroids and gold nanoparticles in combined cancer therapy 

  Bromma, Kyle W (2023-04-19)

  One of the major issues in cancer radiotherapy (RT) is normal tissue toxicity. Introduction of radiosensitizers like gold nanoparticles (GNPs) into cancer cells to enhance the local RT dose is a promising technique that ...
• Automated Optimization of the ISAC-II Heavy Ion Linac 

  Kiy, Spencer Ray (2023-04-18)

  The ISAC (Isotope Separator and ACcelerator) II superconducting heavy ion linac at TRIUMF enables delivery of radioactive ion beams for various nuclear physics experiments at TRIUMF. Since the installation and commissioning ...
• Driving Force of the Initial Step in Electrochemical Pt(111) Oxidation 

  Fuchs, Timo; Briega-Martos, Valentín; Fehrs, Jan O.; Qiu, Canrong; Mirolo, Marta; Yuan, Chentian; Cherevko, Serhiy; Drnec, Jakub; Magnussen, Olaf M.; Harrington, David A. (The Journal of Physical Chemistry Letters, 2023-04-05)

  The first step of electrochemical surface oxidation is extraction of a metal atom from its lattice site to a location in a growing oxide. Here we show by fast simultaneous electrochemical and in situ high-energy surface ...
• Development of the Top Layer Method for Measuring the Diffusion Kinetics of Small Molecules in Hydrogels 

  Wang, Guanqiao (2023-04-11)

  Hydrogels have a wide range of applications, such as in everyday personal care products, for the recovery of oil in extraction processes, and as materials for the development of drug delivery vehicles. The design of these ...

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