Browsing Science (Faculty of) by Title
Now showing items 459-478 of 3049
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A Comparative Analysis of 4 Shallow Urban Impoundments
(University of Waterloo, 2010-08-11)Shallow urban impoundments are known for low water transparency, and generally low water quality. This thesis investigates the effects of land use, management regime, and carp density on the water quality in 4 shallow urban ... -
Comparative Clinical Performance of Scleral Lenses with Varying Limbal Clearance in a Keratoconic Population
(University of Waterloo, 2019-05-10)PURPOSE The purpose of this study is to investigate the impact varying the limbal clearance (LC) has on the clinical performance of scleral lenses and the levels of inflammatory mediators in the tear film of keratoconic ... -
Comparative functional analysis of two alpha-glucosidases, Family 31 Glycoside Hydrolases from the human gut symbiont Bacteroides thetaiotaomicron
(University of Waterloo, 2012-04-18)The human gut is home to a significant number of microorganisms including the dominant symbiont Bacteroides thetaiotaomicron. This microbe is predicted to possess an array of glycoside hydrolases, majority of which are ... -
Comparative metagenomics of PHA synthase genes in soil
(University of Waterloo, 2017-01-19)Polyhydroxyalkanoates (PHAs) are biopolymers produced naturally by bacteria. They are of considerable scientific interest as fundamental components of bacterial carbon metabolism and have biotechnological applications as ... -
Comparative Phylogeography of North American Diporeia hoyi and Gammarus lacustris (order: Amphipoda)
(University of Waterloo, 2010-01-06)This thesis examines the phylogeographic distribution of both Diporeia hoyi and North American populations of Gammarus lacustris. The first section of this thesis investigates the genetic distribution and species composition ... -
Comparative risk of cardiac arrhythmias associated with acetylcholinesterase inhibitor use
(University of Waterloo, 2021-05-19)Background: Acquired long-QT syndrome (ALQTS) and its associated condition, torsades de pointes (TdP – a malignant cardiac arrhythmia), are associated with the use of certain medications. Case reports and pharmacodynamic ... -
A comparative study of gemini surfactants 16-3-16 and 16-7NH-16 as possible microbubble gene carriers
(University of Waterloo, 2011-01-17)Gene therapy holds great promise to treat a variety of human diseases, including diabetes. The development of a new gene delivery system called Ultrasound Targeted Microbubble Destruction (UTMD) has been developed to enhance ... -
Comparative study of transient hydraulic tomography with varying parameterizations and zonations: Laboratory sandbox investigation
(Elsevier, 2017-11-01)Transient hydraulic tomography (THT) is a robust method of aquifer characterization to estimate the spatial distributions (or tomograms) of both hydraulic conductivity (K) and specific storage (Ss). However, the ... -
The Compared Effects of Lithium Isotopes ⁶Li and ⁷Li on GSK-3-β Activity and the Biochemistry of HT22 Neuronal Cells
(University of Waterloo, 2020-12-09)The use of lithium in treatment of mental illnesses like bipolar disorder, major depressive disorder, and schizophrenia dates to the mid 20th century. Some research also indicates that the symptoms of Alzheimer’s Disease ... -
Comparing habitat use and mercury accumulation in Arctic Grayling (Thymallus arcticus) from two northern ecosystems
(University of Waterloo, 2018-08-27)An improved understanding of the distribution and habitat requirements for mountain stream populations of Arctic Grayling (Thymallus arcticus) is necessary to assess their vulnerability to environmental stressors, establish ... -
Comparing Paleohydrograph Reconstructions from Subsurface Stratigraphy and Topography at the Sault Ste. Marie Strandplain
(University of Waterloo, 2021-05-01)The Great Lakes are currently at high water levels, which are negatively impacting coastal infrastructure, coastal ecosystems, and stakeholders that rely on the lakes. To better understand natural fluctuations, which ... -
Comparing thallium isotopes to paleosalinity and Mo-U isotope paleoredox proxies: A case study of the Upper Devonian Kettle Point Formation, Ontario
(University of Waterloo, 2023-06-22)Black shale formations are utilised to reconstruct ancient global ocean redox conditions by analyzing and inferring their geochemical and isotopic compositions. However, the accuracy of these reconstructions can decrease ... -
Comparison of a new portable digital meniscometer and optical coherence tomography in tear meniscus radius measurement
(Wiley, 2013-10-07)Purpose: Non-invasive measurement of tear meniscus radius (TMR) is useful in the assessment of tear volume for dry eye diagnosis. This study investigates the agreement between a new, portable, slit-lamp mounted, digital ... -
Comparison of Graphene Oxide and Reduced Graphene Oxide for DNA Adsorption and Sensing
(American Chemical Society, 2016-10-18)Fluorescently labeled DNA adsorbed on graphene oxide (GO) is a well-established sensing platform for detecting a diverse range of analytes. GO is a loosely defined material and its oxygen content may vary depending on the ... -
Comparison of Hydraulic Tomography Survey with and without Cut-off Walls at the Narashino Site, Japan
(University of Waterloo, 2021-01-12)This study investigates the performance of several different conceptualizations of inverse modeling including the effective parameter, geological zonation and geostatistical inversion approaches, on characterizing the ... -
Comparison of Ion Mobility Spectrometry and Gas Chromatography with Dry Electrolytic Conductivity Detection for the Determination of Polychlorinated Biphenyls in Humus-Rich Soil
(University of Waterloo, 2007-02-21)Ion mobility spectroscopy (IMS) has been showen to provide fast on-site analysis of coarse sandy soil for the determination of polychlorinated biphenyls (PCBs). However the presence of humus results in instrument foaling ... -
Comparison of meibomian gland dropout using two infrared imaging devices
(Elsevier, 2018-11-07)Purpose To measure the degree of meibomian gland (MG) dropout in the lower eyelid determined by analysis of images obtained from the LipiView II (LVII) and the Keratograph 5M (K5M). Methods The inferior eyelid of each ... -
COMPARISON OF MICRODIALYSIS WITH SOLID-PHASE MICROEXTRACTION FOR IN VIVO STUDY
(University of Waterloo, 2008-05-08)Although microdialysis (MD) and solid-phase microextraction (SPME) are widely used sampling techniques, a comparison study has not been performed to date. The goal of the research presented was not only to address this ... -
Comparison of MoS2, WS2, and Graphene Oxide for DNA Adsorption and Sensing
(American Chemical Society, 2017-01-17)Interfacing DNA with two-dimensional (2D) materials has been intensely researched for various analytical and biomedical applications. Most of these studies have been performed on graphene oxide (GO) and two metal ... -
Comparison of super-resolution algorithms applied to retinal images
(Society of Photo Optical Instrumentation Engineers, 2014-05-01)A critical challenge in biomedical imaging is to optimally balance the trade-off among image resolution, signal-to-noise ratio, and acquisition time. Acquiring a high-resolution image is possible; however, it is either ...