Browsing Science (Faculty of) by Title
Now showing items 2522-2541 of 3025
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Spontaneous Tilting Transition in Liquid-Crystalline Polymer Brushes
(2019)The equilibrium phase behavior of main-chain liquid-crystalline polymer brushes in good solvent is investigated using self-consistent field theory. The calculation assumes semi-dilute brushes, where the grafting density ... -
Squashing Models for Optical Measurements in Quantum Communication
(University of Waterloo, 2009-10-02)Many protocols and experiments in quantum information science are described in terms of simple measurements on qubits. However, in an experimental implementation, the exact description of the measurement is usually more ... -
Stability and aggregation propensities of ALS-associated human superoxide dismutase mutants
(University of Waterloo, 2010-02-19)Amyotrophic lateral sclerosis (ALS) is the most common motor neuron disease and is characterized by progressive paralysis leading to death, typically, within 3-5 years of the onset of symptoms. The majority of ALS cases ... -
Stability and Aggregation Studies of Immature Superoxide Dismutase
(University of Waterloo, 2015-08-27)Amyotrophic Lateral Sclerosis is a devastating neurological disease with no known cure. In 1993, a genetic link was established between ALS and mutant forms of Cu, Zn-superoxide dismutase (SOD1), an antioxidant enzyme ... -
Stability and Strain in Hisactophilin and Mechanism of the Myristoyl Switch
(University of Waterloo, 2019-05-23)Hisactophilin is a myristoylated, histidine-rich, pH-dependent actin- and membrane-binding protein. In response to cellular changes in pH, this β-trefoil protein reversibly switches between cytosolic and membrane- bound ... -
Stabilization of Mercury in River Water and Sediment Using Biochars
(University of Waterloo, 2016-11-29)Mercury (Hg) is a common contaminant in air, oceans, lakes, rivers, soils, and sediments as elemental, inorganic and organic forms. Organic Hg (e.g., methylmercury (MeHg)), which is much more toxic than other forms and can ... -
Stabilizing DNA G-quadruplexes by thallium(I) and its application for thallium detection
(University of Waterloo, 2015-08-21)Heavy metals such as thallium are dangerous to living organisms and the environment. They are toxic and harmful. The threat of pollution from these metals is ever growing due to increased mining around the world. Thallium ... -
Stable isotope analyses (δ15N, δ13C) as a tool to define exposure of white sucker (Catostomus commersonii) to pulp mill effluent in Jackfish Bay, Lake Superior
(University of Waterloo, 2016-02-17)Effects of effluent from the pulp mill in Terrace Bay, Ontario, on fish have been extensively studied since the late 1980s. Fish collected at this site over the past several decades have shown a variety of physiological ... -
Stable Isotope Ecology of Tropical Bats
(University of Waterloo, 2019-08-12)Stable isotopes have been used to characterize differences in animal diet and behaviour since experimental studies by DeNiro and Epstein (1979; 1981). Examining isotopic ratios enables researchers to track how animals ... -
Stable Isotope Fractionations of Chlorinated Ethenes Associated with Physical Processes
(University of Waterloo, 2017-01-24)Chlorinated ethenes are the widespread source of groundwater contamination, which mostly originate from industrial and dry-cleaning facilities. Since chlorinated ethenes are denser than water, they sink below the water ... -
Stable isotope mass balance of the North American Laurentian Great Lakes
(University of Waterloo, 2011-09-29)This thesis describes a method for calculating lake evaporation as a proportion of water inputs (E/I) for large surface water bodies, using stable isotope ratios of oxygen (18O/16O) and hydrogen (2H/1H) in water. Evaporation ... -
Stable Isotopes of Sulphur and Oxygen in Forested Catchments: Insight from New Techniques into Sulphur Cycling and Dissolved Organic Matter Alteration
(University of Waterloo, 2003)Dissolved organic matter (DOM) is present in all forested catchments and can be important in binding metals, absorbing UV, and the transport of nutrients (C, N, S, P). DOM is extremely heterogeneous in time and space, ... -
Stable polymer glasses
(University of Waterloo, 2023-04-26)This thesis presents investigations on stable polymer glasses prepared through physical vapour deposition from different perspectives. This is the first time that polymers have been used in simple vapour deposition and ... -
Standard model physics and beyond from non-commutative geometry.
(University of Waterloo, 2015-09-25)Non-commutative differential geometry (NCG) extends Riemannian geometry and yields a striking reinterpretation of the standard model of particle physics (SM) as gravity on a `non-commutative' manifold. The basic idea behind ... -
Standard model physics from abstract mathematical objects?
(University of Waterloo, 2016-01-22)This thesis constitutes a first attempt to derive aspects of standard model particle physics from purely abstract mathematical objects. We begin abstractly with an algebra, and argue that physical concepts such as particles, ... -
Star Formation and Environmental Quenching of Group Galaxies from the GEEC2 Survey at z~1
(University of Waterloo, 2013-09-03)This work presents detailed analysis from the GEEC2 spectroscopic survey of galaxy groups at 0.8<z<1. This deep survey, which has a magnitude limit of r_AB<24.75, had previously found a population of intermediate ('green') ... -
Star Formation and Quenching in Galaxies: Groups, Clusters, and Mergers
(University of Waterloo, 2023-08-21)This thesis studies the impact of galaxy environment on star formation and ‘quenching’, by using simple physically-motivated models that can be fit using available observed quantities. Quenching refers to the close to total ... -
The Star Formation Histories of Red-Sequence Galaxies
(University of Waterloo, 2009-10-02)This thesis addresses the challenge of understanding the typical star formation histories of red sequence galaxies, using linestrength indices, mass-to-light ratios and redshift evolution as complementary constraints on ... -
Star Formation in Molecular Clouds Associated with HII Regions
(University of Waterloo, 2010-01-22)We have studied the properties of molecular clouds and the stellar population associated with 10 H II regions. We used the James Clerk Maxwell Telescope (JCMT) to make 12CO(2-1) maps in order to study the structure of the ... -
Starch Glycan Utilization by the Gut Microbiota: Structural and Biochemical Insights Into Starch Digestion and the Role of the Colon Microbiota
(University of Waterloo, 2016-05-12)The human digestive system is resident to a highly populated ecosystem of bacterial species known as the colon microbiota, which contributes significantly to our assimilation of dietary and mucosal carbohydrates. Bacteroides ...