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Fall 2023
Background: The COVID-19 pandemic has shown us that our infection prevention and control (IPC) knowledge has some glaring gaps on what best ways to treat dental patients, leading to a flurry of research to understand the best mitigation strategies to reduce aerosols. One of these strategies...
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Carbohydrate and Phosphorylcholine based Polymers Prepared by Reversible Addition-Fragmentation Chain Transfer Polymerization for Gene Therapy
DownloadFall 2012
The study provides a comprehensive account on the development of novel synthetic carbohydrate and phosphorylcholine polymer based gene delivery vectors. Since the development and use of first non-viral vector for gene delivery applications, a wide range of polymers have been synthesized and...
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Characterization of Particulate Matter Morphology and Volatility for Two Direct-Injection Engines
DownloadFall 2015
Particulate matter emitted from two direct injection engines has been characterized by morphology, volatility, mass-mobility exponent, effective density, and size distribution using tandem measurements from a centrifugal particle mass analyzer (CPMA) and differential mobility analyzers (DMA). The...
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Development of Empirical Models to Predict Deposition of Aerosols in the Extrathoracic Airways of Children
DownloadSpring 2012
The experimental studies described in this thesis were performed with the goal of measuring deposition of aerosols, inhaled either nasally or orally, in the extrathoracic airways of children in different age groups. We pursued in vitro methods and characterized the deposition of aerosols in the...
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Evaluation of Mask and Mask Material Suitability for COVID-19 Transmission Protection and Influence of Face Velocity and Exhaled Breath Condensate on Filtration Efficiency
DownloadSpring 2022
Facemask use has been a key public health measure in response to the SARS CoV-2 pandemic; they are used to reduce airborne transmission of the disease amongst the public. The facemasks used by the public are non-medical in nature and therefore are not regulated like medical masks. Cloth masks,...
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Hyperbranched Phosphorylcholine Polymers Synthesized via RAFT Polymerization for Gene Delivery and Synthesis of an Elastomeric Conductive Polymer for Cardiovascular Applications
DownloadFall 2012
Gene therapy has the potential to treat a variety of hereditary diseases such as diabetes, peanut anaphylaxis, cystic fibrosis and different types of cancer. Gene therapy relies on the design of a delivery system which can carry a gene of interest into a cell. The delivery systems can be broken...
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Spring 2011
This thesis explores the capabilities of cationic polymers modified with lipids of different carbon chain length to deliver DNA molecules to primary cells and transformed cell lines. Our studies focus on two different polymers: polyethylenimine (PEI) and poly(L-lysine) (PLL). Firstly, PEI and PLL...
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Improving Measurements of the Mixing State and Mass Concentration of Particulate Emissions from Aircraft Engines
DownloadSpring 2016
This research is focused towards improving techniques used to measure particulate emissions from aircraft engines, on two fronts: first, to characterize and quantify the mixing state of particulate emissions; and second, to calibrate black carbon mass instruments with a traceable mass...
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Spring 2014
Gene delivery is an emerging therapy for treatment of many different diseases and conditions, with the first therapy recently approved for clinical use. This thesis investigates non-viral carriers for gene delivery for bone regeneration, with an emphasis on the mechanisms of plasmid DNA (pDNA)...
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Introduction of Competition in Regulated Markets: Analysis of Colombia’s Natural Gas Industry
DownloadFall 2016
This dissertation deals with the introduction of competition in regulated industries such as natural gas. The thesis focuses on the recently developed Colombian natural gas market and uses a more mature market, the deregulated gas market existing in the province of Alberta, Canada, as a benchmark...