Browsing Biology by Title
Now showing items 475-494 of 597
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Quantification and Profiling of Hepatic Retinoids in Freshwater Fishes by Liquid Chromatography – Tandem Mass Spectrometry
(University of Waterloo, 2018-03-26)Retinoids (vitamin A1) are a class of compounds essential for a number of physiological processes including vision and immune system function. They are stored as biologically inactive retinyl esters which are mobilized ... -
Quantitative Analysis of Petroleum Hydrocarbons (PHC) in Soils and Chemically Augmented Plant Growth Promoting Rhizobacteria Enhanced Phytoremediation Systems.
(University of Waterloo, 2017-05-15)Petroleum hydrocarbons (PHC) are a complex mixture of organic compounds, which can negatively impact terrestrial ecosystems. The Canadian Council of Ministers of the Environment (CCME) provides recommendations on the ... -
A Quantitative Model of the Initiation of DNA Replication in Saccharomyces cerevisiae
(University of Waterloo, 2012-05-01)A crucial step in eukaryotic cell proliferation is the initiation of DNA replication, a tightly regulated process mediated by a multitude of protein factors. In Saccharomyces cerevisiae, this occurs as a result of the ... -
Rainbow trout exposed to benzo[a]pyrene yields conserved microRNA binding sites in DNA methyltransferases across 500 million years of evolution
(Springer, 2017-12-04)The objective of this study was to examine the regulation of DNA methylation following acute (24 h) and prolonged (14 d) exposure to low (1 ng/L) and high (10 ng/L) benzo[a]pyrene. However, with the recent release of the ... -
Rapid and Nongenomic Glucocorticoid Signaling in Rainbow Trout
(University of Waterloo, 2013-02-22)Corticosteroids are key regulatory hormones involved in many aspects of physiology and have long been known to exert rapid and delayed effects. The delayed corticosteroid effects are mediated by transcriptional events ... -
Reconstruction of past variation in lake water balance at upstream Smoky and Wabasca watersheds to improve understanding of causes of lake drying in the Peace-Athabasca Delta
(University of Waterloo, 2023-01-23)Controversy persists regarding causes of recent lake-level drawdown within the internationally recognized Peace-Athabasca Delta (PAD), northern Alberta. Central to this debate are conflicting interpretations of causes of ... -
Regulation of a cold inducible antifreeze protein in soil bacterium Pseudomonas putida GR12-2
(University of Waterloo, 2014-09-30)In cold inhabiting bacteria, a commonly used strategy to combat freezing stress is the production of antifreeze proteins. These proteins assist in survival below 0 degrees Celsius by minimizing extracellular ice crystal ... -
Regulation of Heat Shock Protein 70 Levels in Red Blood Cells of Rainbow Trout
(University of Waterloo, 2010-10-28)The physiological responses to stressor exposure can be broadly grouped into the organismal and the cellular stress responses. The organismal stress response involves the release of hormones into general circulation, while ... -
Regulation of Integrin Function by XGIPC
(University of Waterloo, 2008-08-25)Integrins are a large family of transmembrane cell adhesion receptors that are found on the surface of eukaryotic cells. Integrins act predominantly as cell surface receptors for extracellular matrix (ECM) proteins, but ... -
Regulation of MH Class II Associated Invariant Chain in Oncorhynchus mykiss
(University of Waterloo, 2007-05-22)Major histocompatibility complex (MHC) class II associated invariant chain is a chaperone of the mammalian MHC class II antigen presentation pathway. It is responsible for targeting the MHC class II dimer to the endocytic ... -
Regulation of rainbow trout (Oncorhynchus mykiss) mRNA at the innate/adaptive immunity interface in response to Vibrogen 2
(University of Waterloo, 2017-07-31)Aquaculture supplies the world market with over 50% of food fish and is an economically important industry, however limited disease management strategies often lead to significant economic losses and/or poor-quality product. ... -
Relationships between depth and δ15N of Arctic benthos vary among regions and trophic functional groups
(Elsevier, 2018-05-01)Stable isotope ratios of nitrogen (δ15N) of benthic primary consumers are often significantly related to water depth. This relationship is commonly attributed to preferential uptake of 14N from sinking particulate organic ... -
The Reproductive Effects of Municipal Wastewater Effluents
(University of Guelph, 2017-03-01)There is a growing concern that pharmaceuticals and other chemicals present in the effluents (sewage discharged into a river) from municipal wastewater treatment plants enter the aquatic environment, where they may affect ... -
The Response of Wild Fish to Municipal Wastewater Effluent Exposures at Sites in Canada
(University of Waterloo, 2012-04-18)Aquatic receiving environments have long been used to dilute municipal wastewater effluents (MWWE) which are the largest discharge by volume into the aquatic environment in Canada. These treated effluents are a complex ... -
Response of wild fish to municipal wastewater treatment plant upgrades
(University of Waterloo, 2017-03-21)Impacts on aquatic biota residing near municipal wastewater treatment plant (MWWTP) outfalls have been documented globally. These impacts may be directly or indirectly associated with elevated contaminants such as nutrients, ... -
Robust thermal control for CMOS-based lab-on-chip systems
(Institute of Physics, 2015-07-01)The need for precise temperature control at small scales has provided a formidable challenge to the lab-on-chip community. It requires, at once, good thermal conductivity for high speed operation, good thermal isolation ... -
The role of ACC deaminase in plant growth promotion by the endophytic bacterium Burkholderia phytofirmans PsJN
(University of Waterloo, 2008-08-01)The endophytic bacterium Burkholderia phytofirmans PsJN has been previously shown to promote plant growth. This bacterium produces siderophores, indoleacetic acid (IAA) and the enzyme 1-aminocyclopropane-1-carboxylate (ACC) ... -
The Role of Domain II and Domain IV Extracellular Turrets in Determining Ion Selectivity in the T-type Calcium Channel from Lymnaea stagnalis
(University of Waterloo, 2016-07-20)The T-type calcium channel from the pond snail Lymnaea stagnalis, LCav3, undergoes alternative splicing in exon 12. Exon 12 codes for the L5 structure (S5-P) in Domain II (DII), which is dubbed the "turret". The turret is ... -
The Role of Glucocorticoid Receptor Signaling in Zebrafish Development
(University of Waterloo, 2013-01-28)These studies present a series of novel roles for glucocorticoid signaling in the developing zebrafish embryo. The best-characterized roles of cortisol, the primary circulating corticosteroid in teleost fish, are known to ... -
The role of hindsight in the transient stem cell niche of the Drosophila melanogaster larval midgut
(University of Waterloo, 2018-04-30)The composition of the larval Drosophila midgut includes cells known as adult midgut precursors (AMPs) that represent the founder cells for the adult midgut. During the first and second larval instar stages, AMPs are ...