Browsing Biology by Title
Now showing items 435-454 of 597
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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 ... -
Photocatalytic Degradation of Microcystins by TiO2 Using UV-LED Controlled Periodic Illumination
(Multidisciplinary Digital Publishing Institute, 2019-02-14)Toxic microcystins (MCs) produced by freshwater cyanobacteria such as Microcystis aeruginosa are of concern because of their negative health and economic impacts globally. An advanced oxidation process using UV/TiO2 offers ... -
Photoinduced Toxicity of Metals and PAHs to Hyalella azteca: UV-Mediated Toxicity and the Effects of Their Photoproducts
(University of Waterloo, 2009-05-08)Polycyclic aromatic hydrocarbons (PAH) are a class of common environmental contaminants known to be phototoxic. PAH Photoinduced toxicity is caused by two mechanisms: photomodification and photosensitization. The ... -
Physical and biogeochemical gradients and exchange processes in Nyanza Gulf and main Lake Victoria (East Africa)
(University of Waterloo, 2009-01-22)Nyanza Gulf is a large, shallow and long river-influenced embayment located in northeastern Lake Victoria. The gulf opens to the main lake through the narrow and deep Rusinga Channel, the exchange zone between the two ... -
Physicochemical and Vegetative Responses of Prairie Wetlands to Local Land Covers
(University of Waterloo, 2016-09-28)Effective environmental monitoring and biological assessment initiatives require knowledge of the spatial and temporal scales at which human activities most strongly influence ecosystem conditions. I compared the environmental ... -
The physiological ecology of preparing for and recovering from hibernation in temperate insectivorous bats
(University of Waterloo, 2023-01-12)Temperate insectivorous bats that hibernate must both prepare for and recover from hibernation during times of the year with low resource abundance and low ambient temperatures, resulting in energetic bottlenecks in both ... -
Phytoplankton community composition effects on phosphorus sedimentation dynamics in Lake Erie
(University of Waterloo, 2007-10-01)Cultural eutrophication is caused by the excess addition of phosphorus to aquatic ecosystems, and has long been a water quality management issue in Lake Erie. Despite successful reductions in external loading of phosphorus ... -
Phytoplankton dynamics in nearshore and offshore regions of the Great Lakes Erie, Malawi, Tanganyika, and Victoria
(University of Waterloo, 2008-02-22)My doctoral thesis challenges the traditional paradigm of phosphorus (P) limitation of phytoplankton communities in freshwaters by suggesting colimitation of P, nitrogen (N), and iron (Fe) in Great Lakes. Oceanographers ... -
Phytoplankton Production In Lake Victoria, East Africa
(University of Waterloo, 2004)This thesis develops, validates and applies an empirical model that provides the first spatially explicit estimates of gross and net phytoplankton production in Lake Victoria. Gross and net phytoplankton production are ... -
Pituitary adenylate cyclase-activating polypeptide (PACAP) as a treatment for microbial infections in rainbow trout (Oncorhynchus mykiss) aquaculture
(University of Waterloo, 2021-09-28)Diseases cause economic losses in aquaculture, and the widespread use of antibiotics in the industry has contributed to the development of antibiotic resistant pathogens, an issue of concern for its repercussions on the ... -
Plankton Metabolic Balance and its Controlling Factors in the Coastal Zone of the Laurentian Great Lakes
(University of Waterloo, 2007-10-01)Plankton metabolic balance (PMBm) of the surface mixed layer was calculated as the ratio of areal rates of gross photosynthesis (AGP) to community respiration (AR), and estimated for four Laurentian Great Lakes coastal ... -
Plant Growth-Promoting Bacterial Endophytes that contain ACC Deaminase: Isolation, Characterization, and Use
(University of Waterloo, 2013-04-26)Bacteria that provide benefit to plants are considered to be plant growth-promoting bacteria (PGPB) and can facilitate plant growth by a number of different mechanisms. Plant growth-promoting bacteria that are able to ...