Browsing Biology by Issue Date
Now showing items 1-20 of 597
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Gaits and Their Development in the Infraorder Pecora
(University of Waterloo, 1967-02)The gaits of twenty-eight species of the Infraorder Pecora are analyzed from motion picture sequences comprising over 45,000 frames. For each gait the percentage time spent on the various supporting legs during each stride ... -
Effect of Fuel Ethanol on Subsurface Microorganisms and its Influence on Biodegradation of BTEX Compounds.
(University of Waterloo, 2000)Ethanol is used as fuel in neat form in some countries (Brazil and India) or blended with gasoline (Europe, Canada and the United States). The benefits of ethanol use include octane enhancement, a cleaner environment and ... -
Sources and Controls of Sulphur Export in Precambrian Shield Catchments in South-central Ontario
(University of Waterloo, 2002)A series of studies was undertaken at Plastic Lake-1 (PC1) to determine the sources and controls on S cycling in small headwater catchments on the Precambrian Shield in south-central Ontario. Two observations were made ... -
The production and fate of picoplankton and protozoa in the pelagic food web of Napoleon Gulf, Lake Victoria, East Africa
(University of Waterloo, 2004)The importance of the microbial food web and how it interplays with the classical food chain has gained considerable attention in temperate lakes. However its role in carbon transfer from pico- and nanoplankton to ... -
Characterization of Eukaryotic Translation Initiation Factor 5A-2 (eIF5A-2) in <i>Arabidopsis thaliana</i>: Effects of Wounding and Pathogen Attack
(University of Waterloo, 2004)Plants respond to wounding and pathogen ingress by synthesizing defence proteins that facilitate wound healing, cell death or provide protection against further pathogen attack. The accumulation of these proteins is ... -
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 ... -
Environmental Photoinduced Toxicity of Polycyclic Aromatic Hydrocarbons: Occurrence and Toxicity of Photomodified PAHs and Predictive Modeling of Photoinduced Toxicity
(University of Waterloo, 2005)Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous environmental contaminants known for their photoinduced toxicity. There are two mechanisms through which this may occur: photosensitization and photomodification. ... -
Modeling the growth dynamics of <em>Cladophora</em> in eastern Lake Erie
(University of Waterloo, 2005)<em>Cladophora glomerata</em> is a filamentous green alga that currently forms extensive blooms in nearshore areas of Lake Ontario, eastern Lake Erie, Lake Michigan, and isolated locations in Lake Huron. The biomass, ... -
Characterization of HSP47 Expression in <i>Xenopus Laevis</i> Cell Culture and Embryos
(University of Waterloo, 2005)The heat shock or stress response is a transient response to stressful stimuli that protects vital cellular proteins from damage and irreversible aggregation. Heat shock proteins (Hsps) are molecular chaperones that ... -
cDNA?GFP Fusion Libraries for Analyses of Protein Localization in Mouse Stem Cells
(University of Waterloo, 2005)Stem cells have great potential value for treating a number of diseases and conditions, including diabetes, Parkinson's, and spinal cord injuries. Applying stem cells for therapeutic purposes will require an in-depth ... -
The carbon and nitrogen composition of suspended particulate matter in Lake Erie, selected tributaries, and its outflow
(University of Waterloo, 2005)Since their introduction to Lake Erie, dreissenid mussels may have reengineered the cycling of nutrients in the lake so that the nearshore benthic community intercepts, retains, and recycles greater quantities of nutrients. ... -
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 ... -
Using Chemical Crosslinking and Mass Spectrometry for Protein Model Validation and Fold Recognition
(University of Waterloo, 2006)The 3D structures of proteins may provide important clues to their functions and roles in complex biological pathways. Traditional methods such as X-ray crystallography and NMR are not feasible for all proteins, while ... -
A study of innate antiviral mechanisms using fish cell lines
(University of Waterloo, 2006)Understanding basic antiviral mechanisms in vertebrates is essential for developing methods to enhance antiviral responses and promote human and animal health. In fish these antiviral mechanisms are poorly understood, ... -
Long- and Short-Term Dynamics of the Wetlands in the Amboseli Savanna Ecosystem, Kenya
(University of Waterloo, 2006)The wetlands of the semi-arid savanna ecosystem of Amboseli are the critical dry-season range for a diverse wildlife population, as well as for livestock and humans. Changes in the migratory patterns and increases in ... -
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 ... -
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), ... -
A Functional Study of Major Histocompatibility Expression and Immune Function in Rainbow Trout, (Oncorhynchus mykiss)
(University of Waterloo, 2006)Major Histocompatibility Complex (MHC) receptors serve a critical role in self/non-self recognition through the presentation of peptide antigen to circulating T lymphocytes and are also believed to play a role in mate ... -
Molecular Phylogeography and Species Discrimination of Freshwater <em>Cladophora</em> (Cladophorales, Chlorophyta) in North America
(University of Waterloo, 2006)<em>Cladophora</em> is a widespread freshwater filamentous cholorophyte genus and is frequently observed in eutrophic waters where it can produce large nuisance blooms. These blooms can have direct impacts on water ... -
Determining food web impacts on experimental aquatic systems from the disposal of oil sands process-affected waste materials.
(University of Waterloo, 2006)Current mining operators in the Athabasca oil sands deposit of Alberta, Canada have made commitments to zero discharge of oil sands process-affected waste materials (OSPM) from the mine site and rehabilitation of mined ...