Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 5 of 5
Full-Text Articles in Entire DC Network
Social Determinants Of Mental Health And Well-Being Among Aboriginal Peoples In Canada, Susan Wingert
Social Determinants Of Mental Health And Well-Being Among Aboriginal Peoples In Canada, Susan Wingert
Electronic Thesis and Dissertation Repository
The articles in this volume address the question: How do social determinants structure the health and well-being of the Aboriginal population in Canada? The first article uses bivariate statistical tests to assess whether First Nations residents’ subjective assessments of personal and community well-being correspond to scores from the Community Well-Being (CWB) Index, which is a measure of socioeconomic conditions in the community. The second article uses path analysis to test the extent to which the stress process model explains the social distribution of psychological distress and well-being in the off-reserve Aboriginal population. Specifically, it investigates whether stress, mastery, and social …
Migration, Retention And Dissolution Of A Dnapl In A System Containing Physical And Chemical Porous Medium Spatial Properties, Andrew Oleniuk
Migration, Retention And Dissolution Of A Dnapl In A System Containing Physical And Chemical Porous Medium Spatial Properties, Andrew Oleniuk
Digitized Theses
Contamination of the subsurface environment by chlorinated solvents is a significant issue facing the remediation of sites contaminated with dense nonaqueous phase liquids (DNAPLs). A twodimensional laboratory-scale experiment was used to explore DNAPL migration, retention, and dissolution. Variations in porous medium grain size and wettability were used to jointly explore the impact of heterogeneity on DNAPL behaviour. Migration experiments suggest that porous medium wettability can greatly increase the entrapment of DNAPLs within fine-textured sand lenses. Simulations of DNAPL migration, using different constitutive relationships, suggest that the predictive capabilities of numerical models depend on the predominant wettability of the system. Experimental …
Control Of Muscle Fatty Acid Oxidation Capacity And Fatty Acid Transport Proteins In Migratory Birds: Effects Of . Photoperiod And Leptin, Daria M. Zajac
Control Of Muscle Fatty Acid Oxidation Capacity And Fatty Acid Transport Proteins In Migratory Birds: Effects Of . Photoperiod And Leptin, Daria M. Zajac
Digitized Theses
Avian migratory flights are fuelled by fatty acids. Fatty acid transporters and oxidative enzymes are seasonally upregulated in flight muscle to meet the demands of this intense exercise. The effect of photoperiod and leptin on fatty acid transporters and enzymes was studied in captive birds. Sparrows exposed to migratory photoperiods increased flight muscle FAT∕CD36 and H-FABP mRNA by 154% and 589% respectively, and had 32% higher H-FABP protein than birds in a non-migratory photoperiod. Migrants increased activities of flight muscle CPT, CS and HOAD by 57%, 23% and 74% respectively, and decreased LDH activity by 31%. Photoperiod manipulations did not …
A Scale-Dependent Examination Of Stopover Decisions In Migratory Passerines At Long Point, Ontario, Stuart Alexander Mackenzie
A Scale-Dependent Examination Of Stopover Decisions In Migratory Passerines At Long Point, Ontario, Stuart Alexander Mackenzie
Digitized Theses
Stopovers, periods o f rest and refuelling between migratory flights, play an integral role in determining fitness o f migrating passerines. Migration success is dependent on decisions made about when to arrive and leave particular stopover sites and how to utilize regional landscapes. I used mark-recapture analysis o f bird banding data from a stopover site and direct measurements from radio telemetry data covering a stopover landscape of~20 x 40 km at Long Point, Ontario, to examine stopover decisions. Specifically, I estimated probabilities that individuals would leave a site in relation to age, fat stores, season, and the extent to …
Mechanisms Of Decorin Inhibition Of Vegf-Stimulated Human Trophoblast Migration And Acquisition Of An Endovascular Phenotype, Neena Lala
Digitized Theses
The human placenta is a highly invasive tumour-like organ in which fetal-derived trophoblast cells constitute the major cell type. A subpopulation of trophoblast cells, known as extravillous trophoblast, invades the uterine decidua and maternal arteries to establish sufficient fetal-maternal exchange to maintain healthy utero-placental homeostasis. Trophoblast invasion is highly regulated by a variety of factors at the fetal-maternal interface. Decorin is a member of the small leucine-rich proteoglycan family, produced by the decidua, and is a negative regulator of trophoblast invasiveness. I hypothesized that decorin inhibits vascular endothelial growth factor (VEGF)-stimulated endovascular differentiation and migration by interfering with signalling pathways …