Browsing Biology by Title
Now showing items 61-80 of 143
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Long-Term Changes of Hypolimnetic Dissolved Oxygen and Phytoplankton Community Composition in a Large Lake, Lake Simcoe, Ontario and Revisit Dissolved Oxygen Profile Models for Lakes in Central Ontario
(2016-11-25)Long-term changes in volume-weighted hypolimnetic dissolved oxygen (VWHDO) and phytoplankton community composition were examined as important water quality indicator in Lake Simcoe, a large freshwater lake with impacts by ... -
Macromolecular Interactome of Tetrahymena CHD Family Chromatin Remodelers
(2018-05-28)Tetrahymena thermophila undergoes RNA-guided, DNA elimination during development. Bioinformatic and functional analyses on tChd family chromatin remodelers suggest the proteins are candidate DNA and RNA binding proteins. ... -
Manipulation of Endogenous and Exogenous Sources of Cholesterol and its Effects on Beta Cell Function.
(2014-07-09)Type 2 diabetes mellitus (T2DM) prevalence continues to increase worldwide. Changes in β-cell function and mechanisms behind the aberrant insulin secretion found in T2DM patients are still poorly understood. Cholesterol ... -
Measuring Memory in an Alzheimer's Treatment Trial Using a Visual Search Task
(2015-01-26)Alzheimer’s Disease (AD) is characterized by episodic memory deficits attributed to damage to the hippocampal formation. AD therapies specifically targeting hippocampal function may be best evaluated through the use of ... -
Measuring the exposure of Songbird Nestlings to Neonicotinoids in Natural and Agricultural Nest Sites
(2019-07-02)Neonicotinoid insecticides such as imidacloprid (IMI) have been under scrutiny for their damage on non-target invertebrates. However, recent literature suggests that grassland birds are experiencing population declines ... -
Mechanisms of High Insulin and High Glucose-Induced Skeletal Muscle Insulin Resistance: Focus on Regulation by Adiponectin
(2016-09-20)Skeletal muscle insulin resistance is known to play an important role in the pathogenesis of diabetes, however the cellular processes involved are poorly defined. Autophagy, ER stress, the UPR and oxidative stress are being ... -
Migration and Winter Ecology of a Declining Forest Songbird
(2015-01-26)Fundamental gaps in understanding of the year-round biology of migratory songbirds are hampering conservation of dozens of at-risk species. Until recently, determining where and when during their annual cycle migratory ... -
Molecular Evolution of the Brain Transcription Regulatory Network Affecting Worker Behaviour of Honey Bees (Apis Mellifera)
(2015-08-28)The brain transcription regulatory network drives the behavioural states of honey bee workers. It is paradoxical that labile behaviour is guided by a network of evolutionary conserved pleiotropic transcription factors. So ... -
Natural Selection on S-Linked Genes in Turnera (Passifloracease)
(2015-12-16)Investigations of the evolutionary dynamics exhibited by S-linked loci have the potential to provide evidence concerning the particular genes that determine the expression of distyly in flowering plants. Several approaches ... -
Neural Mechanisms of Transsaccadic Integration of Visual Features
(2016-09-20)This thesis explores the neural mechanisms of transsaccadic integration of visual features. In the study, I investigated the cortical correlates of transsaccadic integration of object orientation in multiple reference ... -
Neural Processes Underlying the Flexible Control and Learning of Attentional Selection
(2018-05-28)In every-day life we are usually surrounded by a plethora of stimuli, of which only some may be relevant to us at a given moment in time. The dynamic interaction between internal factors, such as our previous experience ... -
Novel Interaction, Regulation of Phosphorylation and Mitotic Localization of Cell Division Cycle Associated Protein 7 (CDCA7)
(2018-08-27)Cell Division Cycle Associated Protein 7 (CDCA7) is a novel protein with poorly defined physiological significance. The proximity labeling method known as Biotin Identification (BioID) was used to determine candidate ... -
Nursing Back to Health: Shrubs Facilitate the Restoration of Native Forbs with Reductions in Non-Native Competition in an Invaded Arid Shrubland
(2017-07-27)Restoring native species to invaded arid ecosystems is challenging as non-native species often limit native species establishment, which limits success. Nurse plant facilitation may be utilized to improve native species ... -
Optimizing NECEEM-Based Aptamer Selection Using Emulsion PCR To Obtain Potential DNA Inhibitors For The Human Dealkylating Enzyme ABH2
(2015-08-28)The oldest chemotherapeutic drugs still in use today are the alkylating agents. In many cases, their effectiveness is hindered by the ability of cancerous cells to develop resistance using the cell’s innate DNA repair ... -
Peripheral and Central Auditory Processing in People With Absolute Pitch
(2016-11-25)Absolute pitch (AP) is a rare ability that is defined by being able to name musical pitches without a reference standard. This ability has been of interest to researchers studying music cognition and the processing of ... -
Phylogeny of Chilicola (Hylaeosoma)(Hymenoptera:Colletidae) Based on Morphological and Morphometric Data of Extant and Fossil Species, with Description of Seven New Species
(2018-05-28)Combined data approach is used to establish a phylogeny of the bee subgenus Chilicola (Hylaeosoma) Ashmead 1898 (Colletidae: Xeromelissinae). Results of phylogenetic analyses are presented, based upon 92 morphological ... -
Polar Bear (Ursus Maritimus) Foraging Ecology in the Western Canadian Arctic
(2018-05-28)Climate change has led to abrupt declines in sea ice over the past three decades. Polar bears (Ursus maritimus) rely on sea ice as their primary habitat to hunt marine mammal prey. Due to their position at the top of the ... -
Polar Bear (Ursus Maritimus) Foraging Ecology in Western Hudson Bay
(2018-05-28)The ecological response of climate change is expected to be especially pronounced across the circumpolar Arctic. Predicted declines in sea ice extent and seasonal duration are expected to affect the foraging ecology of ... -
Pollinator-Mediated Interactions of Foundation Plants in the Mojave Desert
(2019-03-05)Pollination facilitation is an indirect interaction whereby one plant species positively influences the reproductive success of another plant species through pollinators. First, we conducted a systematic review of the ... -
Population Genomic Approaches to Understanding the Genetics and Evolution of Social Insects
(2017-07-27)Eusocial animals are comprised of distinct and specialized individuals that carry out specific tasks within colonies. Despite decades of research on eusocial insects (e.g. bees, wasps, termites, and ants), we lack knowledge ...