Browsing Biology by Title
Now showing items 277-296 of 597
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Habitat use of young-of-year Arctic Grayling (Thymallus arcticus) in Barrenland streams of central Nunavut, Canada
(University of Waterloo, 2020-06-01)Arctic Grayling, a species within the family Salmonidae that is valued by sport fishers and Indigenous communities, is distributed throughout a diversity of northern landscapes. While Arctic Grayling are known to be sensitive ... -
Heat Shock Response Inhibition and Gene Expression in <em>Xenopus Laevis</em> Cultured Cells
(University of Waterloo, 2006)Various genes have evolved to protect the cell against stressor-induced damage or death including the heat shock proteins (HSPs). Stressor-induced HSP gene expression involves the activation of heat shock factor (HSF), ... -
Hepatic Proteome Analysis of Fathead Minnow (Pimephales promelas) Exposed to Municipal Wastewater in the Bow River
(University of Waterloo, 2019-09-27)Large quantities of contaminants enter Canadian waterways through municipal wastewater effluent (MWWE) each year. MWWE exposure can have a myriad of effects on aquatic organisms, including inducing chronic stress response ... -
Hepatic Steatosis and TNF-α Signaling
(University of Waterloo, 2007-04-24)The overall objective of this research was to investigate the status of tumor necrosis factor-α (TNF-α), and molecules associated with its signaling, in the pathological state of hepatic steatosis. The effect of NSAID ... -
Heterothermy, body size, and locomotion as ecological predictors of migration in mammals
(Wiley, 2022-01)Migration is ubiquitous among animals and has evolved repeatedly and independently. Comparative studies of the evolutionary origins of migration in birds are widespread, but are lacking in mammals. Mammalian species have ... -
High Throughput Sequencing of MicroRNA in Rainbow Trout Plasma, Mucus, and Surrounding Water Following Acute Stress
(Frontiers, 2021-01-13)Circulating plasma microRNAs (miRNAs) are well established as biomarkers of several diseases in humans and have recently been used as indicators of environmental exposures in fish. However, the role of plasma miRNAs in ... -
High-throughput OpenArray™: novel, swift TaqMan® Real-Time PCR chip for diagnostic biomarkers in Oncorhynchus tshawytscha
(University of Waterloo, 2024-01-26)In 2014, aquaculture replaced capture fisheries as the primary source of fish supply for human consumption for the first time in history, but to date, fish domestication has not developed enough to cope with the ... -
Historical trends of polychlorinated dibenzo-p-dioxins and dibenzofurans in fish and sediment associated with two bleached kraft pulp mills in northern Ontario.
(University of Waterloo, 2013-12-11)In the early 1990s polychlorinated dibenzo-p-dioxin (PCDD) and dibenzofuran (PCDF) contamination of fish was widely associated with bleached kraft pulp mills. Regulations were put into place in Canada and elsewhere to ... -
The HOTHEAD Protein: Assessing Enzymatic Activity using Computational and Recombinant Protein Expression Approaches
(University of Waterloo, 2019-04-30)In Arabidopsis thaliana, a number of genes regulating cuticle synthesis have been identified by virtue of organ fusion phenotype. One such gene, HOTHEAD (HTH) was among those originally identified by this phenotype but its ... -
The Hyalella (Crustacea: Amphipoda) species cloud of the ancient Lake Titicaca originated from multiple colonizations
(Elsevier, 2018-08)Ancient lakes are renowned for their exceptional diversity of endemic species. As model systems for the study of sympatric speciation, it is necessary to understand whether a given hypothesized species flock is of monophyletic ... -
A hybrid correlative-mechanistic approach for modeling and mapping winter distributions of western bat species
(Wiley, 2021-10)Aim: The fungal pathogen Pseudogymnoascus destructans and resultant white-nose syndrome (WNS) continues to advance into western North America, infecting new bat populations, species, and hibernacula. Western North America ... -
Hydrogen Production and Utilization of Agricultural Residues by Thermotoga Species
(University of Waterloo, 2007-09-26)Abstract: Hydrogen can be a renewable energy source to replace conventional fossil fuels. Compared to current hydrogen production processes by consuming fossil fuels, biological hydrogen production has the advantage of ... -
Hydrogen Production by Desulfurococcus fermentans
(University of Waterloo, 2012-09-28)Desulfurococcus fermentans is a hyperthermophilic archaeon growing optimally at 82°C. This microorganism is an obligate anaerobe with optimal growth pH of 6.0. It is capable of producing H2 as an end metabolic product using ... -
Identification and characterization of toxic cyanobacteria in two forested maritime watersheds in North America
(University of Waterloo, 2021-06-01)Healthy forested watersheds naturally provide high quality drinking water to communities. However, the integrity and quality of these water sources may be threatened by climate change-exacerbated disturbances such as ... -
Identification of genes regulated by the Drosophila transcription factor Hindsight
(University of Waterloo, 2013-05-24)Hindsight (HNT) is a zinc finger transcription factor that is required for morphogenesis of the Drosophila embryo, having roles in germ band retraction (GBR) as well as dorsal closure (DC). HNT expression is also found in ... -
Identification of MH Class IIβ alleles conferring resistance/susceptibility to Flavobacterium psychrophilum in Oncorhynchus mykiss families
(University of Waterloo, 2014-12-11)Flavobacterium psychrophilum is the causative agent of bacterial cold water disease (BCWD), which is a major concern for aquaculture and fish health, with mortality rates of 20-30%. Without a commercially approved vaccine, ... -
Identification of Oil Sands Naphthenic Acid Structures and Their Associated Toxicity to Pimephales promelas and Oryzias latipes
(University of Waterloo, 2013-01-25)The oil sands, located in north-eastern Alberta, are one of the largest deposits of oil worldwide. Because the Alberta Environmental Protection and Enhancement Act prohibits the release of oil sands process-affected material ... -
Impact of Cadmium On The Hypothalamus-Pituitary-Interrenal Axis Function in Rainbow Trout
(University of Waterloo, 2013-04-30)Cadmium (Cd) is a nonessential metal present in sublethal concentrations within the aquatic environment. Cd is an endocrine disruptor and high concentrations of this metal suppress stressor-induced cortisol production in ... -
Impact of non-steroidal anti-inflammatory drugs on the adaptive responses to stress in rainbow trout
(University of Waterloo, 2007-06-19)Pharmaceutical drugs are used extensively by humans and domestic animals. The detection of compounds such as non-steroidal anti-inflammatory drugs (NSAIDs) in effluents of sewage treatment plants and surface waters has ... -
Impact of sex and pathophysiology on optimal drug choice in hypertensive rats: Quantitative insights for precision medicine
(Elsevier, 2021-04)Less than half of all hypertensive patients receiving treatment are successful in normalizing their blood pressure. Despite the complexity and heterogeneity of hypertension, the current antihypertensive guidelines are not ...