Browsing Queen's Graduate Theses and Dissertations by Title
Now showing items 3402-3421 of 6491
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Investigations into the Synthesis of Multiply Arylated Alkanes through Iterative Cross-Coupling
The palladium-catalyzed Suzuki-Miyaura cross-coupling, in which a carbon-carbon bond is formed between an organohalide or pseudo-halide electrophile and an organoboron nucleophile, has developed into one of the most widely ... -
Investigations of a New and Improved Precataylst for Palladium Catalyzed Cross Coupling Reactions
(2013-07-02)Little attention has been given to the formation of the putative PdL2 species required for Pd-catalyzed cross-coupling reactions. Active species are generally difficult to store due to air-sensitivity and are therefore ... -
Investigations of Asphaltene-Metal Interactions
(2008-02-11)Asphaltenes are the most polar fraction of petroleum that can precipitate due to changes in pressure, temperature and composition which may be encountered during petroleum production and transportation. The precipitated ... -
Investigations of Backfill - Rock Mass Interface Failure Mechanisms
(2009-08-27)From previous research, it has been proven that rock roughness and closure are two important factors for stability of backfilled stope and exposed backfill. In order to estimate the important parameters of roughness, ... -
Investigations of Ice Photodynamics: Molecular Dynamics Studies and an Apparatus for Solid Sample Velocity Map Imaging
Water ice is prevalent in many environments, from the surface and atmosphere of Earth to molecular clouds in the interstellar medium. High energy photons initiate photoreactions via excitation of water or contaminant species ... -
Investigations of Novel Uses for Boron Compounds in Organic and Inorganic Chemistry
(2011-09-30)Herein I describe a model study to determine the feasibility of organic hydride donors as a source of hydride in the regeneration of ammonia borane. Hydride transfer was observed in the model system comprised of Hantzsch ... -
Investigative Comparison of Tank and Recovered Asphalt Samples Through Physical Performance Testing and Chemical Analysis
Despite the development of improved performance test protocols by renowned researchers, there are still road networks which experience premature cracking and failure. One area of major concern in asphalt science and ... -
Investor Perceived Earnings Quality and Disclosure of Internal Control Weaknesses
(2009-12-17)This study investigates whether disclosures of material weaknesses in a firm’s internal control over financial reporting are associated with lower investor perceived earnings quality. I measure investor perceived earnings ... -
Invisible Visible Minorities: The Experiences of Racial Minority Teacher Candidates on Practicum and in Teacher Education Programs
(2008-09-04)The experiences of racial minority teacher candidates are often unheard in teacher education programs considering that the student population is increasingly diversifying and the teaching population does not reflect this ... -
The involvement of a putative two component system PA2797-PA2798 in P. aeruginosa aminoglycoside resistance
(2014-09-02)Pseudomonas aeruginosa is an opportunistic pathogen, being able to live in a diverse environmental niche. It possesses several resistance mechanisms, including a highly impermeable outer membrane and multiple RND-family ... -
Ion Exchange Chromatography Coupled to Inductively Coupled Plasma Mass Spectrometry: a Powerful Technique for Stability Constant Determination, Speciation Analysis and Kinetic Studies
(2010-09-30)Facile procedures based on hyphenated ion-exchange chromatography (IEC) and inductively coupled plasma mass spectrometry (ICP-MS) were developed to determine conditional stability constants, speciate chromium species and ... -
Irradiation induced damage in CANDU spacer material Inconel X-750
(2013-09-10)Inconel alloys are commonly used as structural materials in nuclear reactors. One of these alloys, the Inconel X-750, is a γ’ Ni3(Al, Ti) strengthened superalloy extensively used in the cores of reactors, such as spacers ... -
Irradiation induced damage in CANDU spacer material Inconel X-750
Inconel alloys are commonly used as structural materials in nuclear reactors. One of these alloys, the Inconel X-750, is a γ’ Ni3(Al, Ti) strengthened superalloy extensively used in the cores of reactors, such as spacers ... -
Irreducibility of Random Hilbert Schemes
(2016-09-13)We prove that a random Hilbert scheme that parametrizes the closed subschemes with a fixed Hilbert polynomial in some projective space is irreducible and nonsingular with probability greater than $0.5$. To consider the ... -
Is Daoism Green? Engaging Daoist Responses to Environmental Challenges in China
This paper seeks to examine the role that Daoism is playing in environmental activism in China. It analyzes a variety of sources including academic literature, primary source material from Daoist groups and my own research ... -
Is the Association Between the Built Environment at School and Students’ Physical Activity Moderated by the Social Environment?
(2013-10-07)Surveillance data from 105 countries indicates that 80% of 13-15 year-olds do not meet the public health guideline of 60 minutes of moderate-to-vigorous physical activity (MVPA) per day. This is problematic as a lack of ... -
Is the Whole World Still Watching? Explaining Police Violence During the Toronto G8/G20 Meetings
(2011-07-05)In recent years the G8 and G20 Summits have become important sites of protest and conflict. Extensive planning by police and protesters have transformed the public meaning of these yearly assemblies into large-scale ... -
An Islanding Detection Method based on Impedance Estimation and Grid Identification for Grid-Tie Distributed Power Generation Systems
Power system policies are broadly on track to escalate the use of renewable energy resources in electric power generation. Integration of dispersed generation to the utility network not only intensifies the benefits of ... -
Isolation and Characterization of Plastidic Glucose-6-Phosphate Dehydrogenase (G6PDH) from Castor (Ricinus communis L.)
(2007-09-27)Abstract Plant cells contain plastids, organelles dedicated to performing specific biochemical processes including photosynthesis, starch and oil biosynthesis. Fatty acid biosynthesis in oil seeds occurs in one type ... -
Issues in International Macroeconomics And Finance: A Time-Series Analysis
This thesis consists of two main parts. The first part is composed of two essays. The first essay addresses the common movements of employment growth within and across 12 countries in the European Monetary Union after the ...