Browsing Biology by Title
Now showing items 424-443 of 597
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An Obese Genotype Affects Apoptosis Related Gene Expression
(University of Waterloo, 2009-01-15)Apoptosis is a genetically regulated form of cell death that occurs when the cell is exposed to physiological, pathogenic, or cytotoxic stimuli. Unregulated apoptosis (too much or too little apoptosis) at any time from ... -
An Obese Genotype Affects the Sphingolipid Signaling Pathway
(University of Waterloo, 2008-01-24)Sphingolipids are important signaling molecules regulating cell growth, cell death and differentiation, thus making them important molecules in determining the fate of a cell and in the pathogenesis of chronic illnesses. ... -
Obesity associated colon tumorigenesis: An assessment of tumor phenotype
(University of Waterloo, 2006)Colon cancer and obesity are two significant and related pathological states with multiple etiological factors. In this dissertation, it was hypothesized that tumor growth is accelerated in the altered state of obesity ... -
Occurrence and Seasonal Variability of Selected Pharmaceuticals in Southern Ontario Drinking Water Supplies
(University of Waterloo, 2007-04-27)The presence and seasonal variability of human and veterinary pharmaceuticals in surface water (raw water) and treated water samples from two drinking water facilities in Southern Ontario was investigated. Water samples ... -
Occurrence, Fate, and Mobility of Antibiotic Resistant Bacteria and Antibiotic Resistance Genes among Microbial Communities Exposed to Alternative Wastewater Treatment Systems
(University of Waterloo, 2012-08-29)The ubiquitous nature of antibiotic resistance and antibiotic resistance genes (ARGs) among environmental pathogens from a variety of wastewater effluents, suggests that the aquatic environment, and specifically alternative ... -
OEP15-1 and OEP7.3 Localize to the Outer Envelope of Chloroplasts Using a Novel and Uncharacterized Targeting Pathway
(University of Waterloo, 2021-09-27)Chloroplasts originated from an endosymbiotic event where a Gram-negative cyanobacterium was engulfed by an ancestral eukaryotic cell. The genome of the endosymbiont has since gone through extensive gene transfer to the ... -
Onion Root Anatomy and the Uptake of Sulphate and Phosphate Ions
(University of Waterloo, 2007-06-12)Ions in the soil solution traverse many layers (epidermis, exodermis, central cortex, and endodermis) within the root to reach the stele. The endodermis is present in almost all vascular plants while the exodermis is found ... -
Optimal sampling methods for modelling the occupancy of Arctic grayling (Thymallus arcticus) in the Canadian Barrenlands
(Canadian Science Publishing, 2017)In occupancy models, imperfect detectability of animals is usually corrected for by using temporally-repeated surveys to estimate probability of detection. Substituting spatial replicates for temporal replicates could be ... -
Optimizing protein S-acylation detection in autophagy
(University of Waterloo, 2021-06-04)S-acylation, sometimes referred to as S-palmitoylation or simply palmitoylation, is a posttranslational protein modification involving the covalent addition of a fatty acid to cysteine residues. Since the first characterization ... -
Organic Tissue Stoichiometry of Cladophora glomerata and its Relation to Coastal Land Use in the Laurentian Great Lakes
(University of Waterloo, 2008-01-04)The relationships between C:N:P (carbon, nitrogen, and phosphorus) stoichiometry of Cladophora glomerata and land use characteristics in selected nearshore areas of the lower Laurentian Great Lakes were determined during ... -
The origin, transformation and deposition of sediments in Lake Bosomtwe/Bosumtwi (Ghana, West Africa)
(University of Waterloo, 2010-05-21)Recent drought over West Africa (1970s-present) has been a global concern, and the ability to predict the frequency and severity of future droughts is important to mitigate the devastating socio-economic effects of drought. ... -
PACAP Analogues with Potential Applications in Finfish Aquaculture
(University of Waterloo, 2023-09-25)Global aquaculture industry has significant losses each year due to disease outbreaks, parasitic, viral, and bacterial infections. Common methods to treat fish infections include antibiotics, but prolonged use can lead to ... -
Paleohydrology of the Wabasca River and relations with past flood regimes at the downstream Peace-Athabasca Delta
(University of Waterloo, 2022-08-22)The Peace-Athabasca Delta (PAD; northern Alberta) is internationally recognized for its ecological, historical, and cultural significance, yet controversy persists over the roles of hydroelectric regulation of Peace River ... -
Paleolimnological evidence of the effects of recent cultural eutrophication and climatic variability during the last 300 years in Lake Malawi, East Africa
(University of Waterloo, 2005)Lake Malawi is the second largest lake in Africa, supporting diverse populations of endemic cichlids and supplying essential water resources to Malawi, Mozambique and Tanzania. However, population growth, rapid deforestation ... -
Peptide and peptide-carbon nanotube hydrogels as scaffolds for tissue & 3D tumor engineering
(Elsevier, 2018-03-15)The use of hybrid self-assembling peptide (EFK8)-carbon nanotube (SWNT) hydrogels for tissue engineering and in vitro 3D cancer spheroid formation is reported. These hybrid hydrogels are shown to enhance the attachment, ... -
Peptide and peptide-carbon nanotube hydrogels as scaffolds for tissue & 3D tumor engineering
(Elsevier, 2018-03-15)The use of hybrid self-assembling peptide (EFK8)-carbon nanotube (SWNT) hydrogels for tissue engineering and in vitro 3D cancer spheroid formation is reported. These hybrid hydrogels are shown to enhance the attachment, ... -
Petabase-scale Data Mining Identifies Novel Clostridial Species and Neurotoxins Associated with Ancient Human DNA
(University of Waterloo, 2022-09-08)Analyzing microbial genomes found in archaeological samples can provide insights into the origins of modern infectious diseases. A large-scale metagenomic analysis of archeological samples discovered bacterial species ... -
Phosphorus and nitrogen in the Al-Hawizeh marshes, southern Iraq
(University of Waterloo, 2008-08-22)Hour Al-Hawizeh is one of the biggest marshes within the Mesopotamian marshes of southern Iraq. This Hour has been functioned for centuries under natural conditions providing resources for local people, important habitat ... -
Phosphorus cycling by stream biofilms exposed to continuous and episodic loading patterns
(University of Waterloo, 2023-09-25)Anthropogenic activities have led to nutrient enrichment of streams, causing eutrophication of water bodies on a global scale. Eutrophication is frequently tied to an excessive influx of phosphorus (P); a crucial nutrient ... -
Phosphorus Retention in an Urban Stormwater Pond
(University of Waterloo, 2021-04-07)Stormwater ponds are a critical piece of stormwater infrastructure which were originally developed to reduce local floods associated with the increased impervious surface area of urban environments. They are now increasingly ...