Browsing Science (Faculty of) by Title
Now showing items 2835-2850 of 2850
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Wastewater to clinical case (WC) ratio of COVID-19 identifies insufficient clinical testing, onset of new variants of concern and population immunity in urban communities
(medRxiv, 2022-04-20)Clinical testing has been the cornerstone of public health monitoring and infection control efforts in communities throughout the COVID-19 pandemic. With the extant and anticipated reduction of clinical testing as the ... -
Water Demand Forecasting Model Application
(University of Waterloo, 2019-01-29)Forecasting water demand requires quantifying potential relationships between relevant statistics and ambient conditions such as water price and weather. Dr Enouy (2018) demonstrates that discrete histograms can be ... -
The water-sediment interactions for Hyalella azteca exposed to uranium-spiked or contaminated sediments and different overlying water chemistries
(University of Waterloo, 2009-07-07)In comparison with other metals such as Cd, Cu, Pb, Ni, and Zn, little is known about uranium (U) toxicity to Hyalella azteca. There is even no national U water or sediment quality guideline yet for the protection of aquatic ... -
Wavefront assessment and correction of the rat eye for two photon excitation therapies
(University of Waterloo, 2016-08-31)Photodynamic therapy (PDT) is a treatment in which light excites a photosensitive drug to produce oxygen radicals that kills nearby cells. Today, PDT’s is most commonly used application is for the destruction of cancerous ... -
Waveguide Sources of Photon Pairs
(University of Waterloo, 2011-05-04)This thesis describes various methods for producing photon pairs from waveguides. It covers relevant topics such as waveguide coupling and phase matching, along with the relevant measurement techniques used to infer photon ... -
Wetland birds and invasive plant management
(University of Waterloo, 2022-08-31)The Great Lakes coastal wetlands are some of the most diverse ecosystems in Ontario. However, their ecological integrity is continually threatened by development, nutrient pollution, and invasive species. Over the past two ... -
Wetting, adhesion and droplet impact on face masks
(ACS, 2021-02-12)In the present pandemic time, face masks are found to be the most effective strategy against the spread of the virus within the community. As aerosol-based spreading of the virus is considered as the primary mode of ... -
What can detectors detect?
(University of Waterloo, 2021-01-29)This thesis is focused on using a pair of Unruh-DeWitt detectors, which interact locally with a quantum field, to gain information about properties of the field and the underlying spacetime. First, we consider a massless ... -
Wild fish responses to wastewater treatment plant upgrades in the Grand River, Ontario
(University of Waterloo, 2020-09-24)Municipal wastewater treatment plant (WWTP) effluent is a major point source of contaminants (nutrients, pharmaceuticals, estrogens, etc.) which can harm aquatic life. Many studies have investigated the effects of WWTP ... -
Woodchip Biofilters for Treatment of Particulate Phosphorus in Agricultural Runoff
(University of Waterloo, 2017-07-07)Woodchip filters have received attention in recent years for their ability to sustain denitrification activity across multiyear time frames. However, in most freshwater aquatic ecosystems, phosphorus (P) rather than nitrogen ... -
Worldwide retention of nutrient silicon by river damming: From sparse data set to global estimate
(American Geophysical Union, 2014-08-13)Damming of rivers represents a major anthropogenic perturbation of the hydrological cycle, with the potential to profoundly modify the availability of nutrient silicon (Si) in streams, lakes, and coastal areas. A global ... -
Wormlike Chain Polymers Under External Fields with Applications to Nanotechnology
(University of Waterloo, 2022-08-12)Polymers are long molecular chains formed from smaller molecular units called monomers. Polymers display interesting macroscopic properties, are ubiquitous in everyday materials, and are also important biomolecules among ... -
X-ray Astrophysics: The Spoiler Clusters and XRISM Synchrotron Calibrations
(University of Waterloo, 2019-10-22)Cool core galaxy clusters hosting brightest cluster galaxies (BCGs) in their centres radiate away their energy on timescales of less than 10^9 yr. If cooling wasn't offset by some form of heating, the hot atmosphere would ... -
α-Dystroglycan is essential for the induction of Egr3, a transcription factor important in muscle spindle formation
(University of Waterloo, 2009-10-20)Muscle spindle fibers are specialized stretch receptors that allow the perception and coordination of limb movement. Differentiation of muscle spindles is initiated by signals derived from the in growing Ia sensory neurons ... -
β2-microglobulin distribution in trout body fluids and release from intestinal epithelial cells in response to plant meal components
(University of Waterloo, 2011-08-04)β2-microglobulin (β2m) exists free of the major histocompatibility complex class I (MHC I) receptor in many bodily fluids. The amount of protein present in these fluids has been found to be a useful prognostic marker for ... -
β‐Parvin Mediates Novel Integrin Signaling Pathways During Early Xenopus laevis Development.
(University of Waterloo, 2019-01-24)Crosstalk between cell adhesion molecules is critical for the cell rearrangements that occur during early Xenopus laevis development. Cells primarily use integrin receptors to adhere to and interpret the extracellular ...