Browsing Science (Faculty of) by Title
Now showing items 159-178 of 3047
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Assessing the utility of passive sampling for building-scale SARS-CoV-2 wastewater-based surveillance to inform public health action
(University of Waterloo, 2023-12-21)Wastewater-based surveillance (WBS) is an effective public health tool that has been used to detect human viruses for decades. Most recently it has been applied to monitor SARS-CoV-2 RNA in municipal wastewater to track ... -
Assessment of Current and Next Generation of Colour Vision Tests for Occupational Use
(University of Waterloo, 2018-06-19)Introduction: Individuals with congenital colour vision deficiencies are at a greater risk of making an error in colour judgment. Computerized colour vision tests are now available to screen for colour vision defects and ... -
An assessment of genomic sequence restoration in Arabidopsis thaliana
(University of Waterloo, 2009-08-27)A fundamental tenet of classical Mendelian genetics is that allelic information is stably transmitted from parent to progeny. Work in our laboratory has revealed a novel exception to this law where Arabidopsis thaliana ... -
An Assessment of Hydro-ecological Changes at Two Closed-drainage Basins in the Peace-Athabasca Delta, Alberta, Canada
(University of Waterloo, 2006)Diatom analyses were carried out on sediment cores collected from two low-lying, closed-drainage basins (PAD 9 - 58º46. 46?N, 111º19. 48?W; PAD 12 - 58º57. 29?, 111º19. 74?) in the Peace sector of the Peace-Athabasca ... -
Assessment of hydroecological changes at the Slave River Delta, NWT, using diatoms in seasonal, inter-annual and paleolimnological experiments
(University of Waterloo, 2007-09-27)Relationships between hydrology, limnology and ecology are analyzed in a comprehensive study of water bodies in the Slave River Delta, Northwest Territories, Canada, at a variety of temporal and spatial scales, including ... -
Assessment of Nitrate Export in Agricultural Sub-Catchments of the Grand River Watershed: An Isotope Approach
(University of Waterloo, 2015-02-20)Nitrate (NO3-) is one of the most widespread contaminants in freshwater systems globally. This is largely due to high fertilizer application rates that are required to maximize crop yield. Elevated NO3- concentrations can ... -
Assessment of ocular aberrations at scaled pupil size and reduced Shack-Hartmann spot number
(University of Waterloo, 2019-05-07)Wavefront aberrations describe the optical imperfections of the eye by measuring the complete refractive elements of the eye. However, the reliability of ocular aberration is uncertain under some challenges and issues. ... -
An Assessment of Pyridoxine as a Biological Response Modifier During Colon Carcinogenesis
(University of Waterloo, 2007-10-05)The main objective of this proposal was to investigate the effect of vitamin B6 on colon carcinogenesis in vivo. Two in vivo studies were conducted to determine the role of vitamin B6 as a biological modifier of colon ... -
Assessment of remote Patagonian riverine fish using environmental DNA
(University of Waterloo, 2022-04-26)Freshwater systems and fish communities face many anthropogenic threats such as climate change, pollution, and invasive species, causing a rapid loss of biodiversity. To protect freshwater fish basic knowledge of their ... -
Assessment of saltwater origin in the Rub’ al-Khali basin and its relation to the formation of sabkha Matti
(University of Waterloo, 2021-01-15)The Rub’ al Khali sand sea is the largest uninterrupted sand desert on Earth that occupies an area of approximately 650,000 km2 of the Arabian Peninsula. Yet, the desert basin is underlying by one of the largest multi-level ... -
Assessment of the cell cycle proteins Cdc7 and PCNA as markers of colon carcinogenesis in obese and lean rats
(University of Waterloo, 2009-11-23)Obesity increases the risk of colon cancer as well as the expression of many cancer markers, ostensibly due to the interaction between insulin resistance and adipocyte production of hormones, mitogens and cytokines which ... -
An Assessment of the Spatial and Temporal Variability of Biological Responses to Municipal Wastewater Effluent in Rainbow Darter (Etheostoma caeruleum) Collected along an Urban Gradient
(PLOS, 2016-10-24)Municipal wastewater effluent (MWWE) and its constituents, such as chemicals of emerging concern, pose a potential threat to the sustainability of fish populations by disrupting key endocrine functions in aquatic organisms. ... -
Assessment of toxic cyanobacterial abundance at Hamilton Harbour from analysis of sediment and water
(University of Waterloo, 2014-05-09)The western embayment of Lake Ontario, Hamilton Harbour, is one of the most polluted sites in the Laurentian Great Lakes and in recent years has seen a reoccurrence of cyanobacterial blooms. This study uses a multidisciplinary ... -
The association between two quality of life measures for first time low vision device users
(University of Waterloo, 2006)Many individuals with impaired vision experience a decreased quality of life. Quality of life is defined as "the degree to which an individual enjoys the important possibilities of their life. " Vision rehabilitation ... -
The Association between Visual Attention and Body Movement-Controlled Video Games, Balance and Mobility
(University of Waterloo, 2018-09-21)Purpose: Interactive video virtual-reality body movement games such as Xbox Kinect may have potential for training visual attention and physical fitness concurrently in older adults in order to reduce the risk of falls. ... -
Association of Intersex in Wild Fish with Wastewater Effluent in the Grand River, Ontario
(University of Waterloo, 2012-02-10)The Grand River watershed is the largest watershed in southern Ontario, and is expected to see major development and urban densification over the next 20 years. An expected 57% increase in population over the next two ... -
The associations between insulin, hypoglycemia, and dementia: Combating threats to internal validity in a series of population-based cohort studies
(University of Waterloo, 2023-05-01)Although the association between type 2 diabetes and dementia is recognized, findings from the epidemiology literature on the effect of insulin and one of its side effects, hypoglycemia, are less clear. The currently ... -
Associations between Oil Additives in Base Oils Probed by Pyrene Excimer Fluorescence
(University of Waterloo, 2017-10-23)A recently developed method based on pyrene excimer fluorescence was used to probe the interactions of important polymeric oil additives. First, three ethylene-propylene (EP) copolymers representative of viscosity index ... -
Asymmetric Alkenylation of Enones and Other α,β-Unsaturated Carbonyl Derivatives Using Chiral 3,3′-Disubstituted Binaphthols and Boronates
(University of Waterloo, 2009-05-22)Various α,β-unsaturated carbonyl compounds and derivatives were explored in order to expand the range of substrates for the 1,4-addition of alkenylboronates using 3,3′-disubstituted binaphthols. Enones 2.60 were examined ... -
Asymmetric Conjugate Addition of Arylboronates to α,β-unsaturated Enones Catalyzed by Substituted Binaphthols
(University of Waterloo, 2009-10-01)Conjugate addition reactions are one of the most widely used carbon-carbon bond forming reactions in organic synthesis. This reaction can form a chiral center and can be used for the synthesis of structurally complex ...