Browsing Theses by Title
Now showing items 14713-14732 of 15268
-
The Use Of Kullback-Leibler Divergence In Opinion Retrieval
(University of Waterloo, 2008-10-01)With the huge amount of subjective contents in on-line documents, there is a clear need for an information retrieval system that supports retrieval of documents containing opinions about the topic expressed in a user’s ... -
Use of Liquid Chromatography - Organic Carbon Detection to Characterize Dissolved Organic Matter from a Variety of Environments
(University of Waterloo, 2012-10-26)Dissolved organic matter (DOM) is a heterogeneous mixture of organic compounds comprised mostly of carbon, oxygen, nitrogen, and hydrogen, but is often operationally defined as the concentration of dissolved organic carbon ... -
Use of Markov Decision Process Models in Preventive Medicine
(University of Waterloo, 2018-08-02)The biggest trade-off when proposing health care policies is about balancing the effectiveness and the practicality of the policies. The optimal policies providing benchmark performances can be driven through using operations ... -
Use of Medications for Management of Alzheimer’s Disease in Ontario’s Home Care Population
(University of Waterloo, 2010-04-07)Abstract Background: Home care is an important care setting for those with Alzheimer’s disease (AD). It provides support that allows individuals with AD to remain at home and may delay the transition to long-term care ... -
Use of N2O and its Isotopic Composition to Investigate Nitrogen Processes in Groundwater
(University of Waterloo, 2010-10-01)This study explores the use of N2O and its isotopic composition to investigate nitrogen processes in groundwater aquifers. Groundwater sampling was undertaken in 2008-2009 at two septic system sites (Long Point site and ... -
Use of Non-linear Models Based on Saturation Kinetics to Determine Chronic Co, Se or Zn Toxicity for Either Exposure or Body Burden in Hyalella azteca
(University of Waterloo, 2018-03-26)Water chemistry can influence the bioavailability, and therefore the toxicity, of metals and other elements. Water chemistry measurements have been incorporated into many water guidelines for the concentration of metals ... -
Use of OCT and Oculus Pentacam HR as Aids to Semi-Scleral Contact Lens Fitting
(University of Waterloo, 2013-09-03)Purpose: To determine whether semi-scleral contact lenses (sSCL) can be appropriately fitted using corneal sagittal depth measurements, and to determine the impact of fit on visual acuity, effect of time on topographic ... -
The use of plant functional traits to detect changes in urban wetland management regimes within Kitchener, ON
(University of Waterloo, 2019-08-14)Humans have modified their surrounding environment in ways that often lead to changes in ecosystem structure and function. Ecosystem management efforts are necessary to bring back functioning attributes of ecosystems for ... -
The use of plant growth promoting rhizobacteria to enhance phytoremediation of petroleum hydrocarbon-impacted soils
(University of Waterloo, 2011-09-30)Phytoremediation is a cost-effective and environmentally conscious technology that utilizes plants to remediate a variety of contaminants from the soil. Petroleum hydrocarbons (PHC), as a result of their widespread use are ... -
The Use of Plant Growth-Promoting Rhizobacteria (PGPR) and an Arbuscular Mycorrhizal Fungus (AMF) to Improve Plant Growth in Saline Soils for Phytoremediation
(University of Waterloo, 2008-01-18)Upstream oil and gas production has caused soil salinity problems across western Canada. In this work we investigated the use of ACC (1-aminocyclopropane-1-carboxylate) deaminase-producing plant growth-promoting rhizobacteria ... -
Use of rainbow trout cell lines to delineate the roles of p53 in fish and to evaluate the toxicity of emerging environmental contaminants, benzotriazoles and benzothiazoles
(University of Waterloo, 2015-05-01)Epithelial cell lines, RTgill-W1 and RTL-W1 from respectively the gill and liver of rainbow trout, Onchorhynchus mykiss (Walbum), were used to investigate the role of p53 in the cellular survival pathways of fish and to ... -
Use of Rainbow Trout Liver Cell Line (RTL-W1) to evaluate the toxicity of Heavy Fuel Oil 7102
(University of Waterloo, 2013-02-25)A rainbow trout liver cell line, RTL-W1, was used to evaluate the toxic potential of a heavy fuel oil (HFO) HFO 7102, and its fractions, which together with the HFO are referred to as the oil samples. The fractions were ... -
The Use of Risk Analysis Techniques to Determine the Probability of Producing Non-Compliant Drinking Water: Focusing on Dual Media Rapid Gravity Filtration
(University of Waterloo, 2006)The main goal of a drinking water treatment plant is to provide safe drinking water for its consumers. Historically, this was accomplished through monitoring the influent and effluent water quality to ensure that the ... -
THE USE OF SCIENCE IN ENVIRONMENTAL POLICY MAKING AND THE IMPLICATIONS FOR HEALTH: A CASE STUDY OF BISMUTH SHOTSHELLS
(University of Waterloo, 2005)Scientific information is required to make environmental policy that will enhance and protect the health of ecosystems. The issues placed on the policy agenda come from the interactions amongst stakeholders, decision ... -
Use of Sensors for Fire Detection and Monitoring
(University of Waterloo, 2019-05-17)The ultimate goal of placing fire detection systems in buildings and structures is to allow for the rapid detection of fire and accurate prediction of ensuing fire behavior. Through a-priori prediction of how a fire might ... -
The Use of Shear Wave Elastography to Estimate the Mechanical Properties of the Soft Tissues Surrounding the Proximal Femur
(University of Waterloo, 2023-08-28)Introduction: Falls are the leading cause of injury, morbidity, and mortality amongst older adults nationally and worldwide, with 95% resulting in hip fractures. Previous studies have found that the soft tissues (subcutaneous ... -
Use of Slip Prediction for Learning Grasp-Stability Policies in Robotic-Grasp Simulation
(University of Waterloo, 2023-07-04)The purpose of prosthetic hands is to restore a portion of dexterity lost through upper limb amputation. However, a key capability of human grasping that is missing from most currently available prosthetic hands is the ... -
Use of Smart Technology Tools for Supporting Public Health Surveillance: From Development of a Mobile Health Platform to Application in Stress Prediction
(University of Waterloo, 2023-08-10)BACKGROUND Traditional public health data collection methods are typically based on self-reported data and may be subject to limitations such as biases, delays between collection and reporting, costs, and logistics. These ... -
The use of stable carbon and oxygen isotopes to examine the fate of dissolved organic matter in two small, oligotrophic Canadian Shield lakes.
(University of Waterloo, 2010-02-12)Allochthonous carbon can be a large proportion of the carbon budget in northern temperate and boreal lakes. This thesis uses stable carbon and oxygen isotopes to examine the fate of allochthonous dissolved organic matter ... -
The use of stable isotopes to assess the controls on pelagic carbon basal resources in Canadian Shield lakes
(University of Waterloo, 2021-06-02)Freshwater lakes are often natural sources of greenhouse gases (GHGs) such as carbon dioxide (CO₂) and methane (CH₄) to the atmosphere, and therefore it is important to examine carbon and nutrient cycling in these complex ...