Retrospective theses: Recent submissions
Now showing items 1101-1120 of 1605
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Risk-sensitivity in a rat population under interval schedules of reinforcement : open and closed economies
(1995)A group consisting of eight male Hooded rats was tested for risk-sensitive foraging preferences in an eight station operant arena, under conditions of open and closed economies. The group could choose to forage at either ... -
Risk sensitive foraging by rats in the operant arena
(1988)The operant arena was used as the framework in which to study the theory of risk-sensitivity, A small colony of hooded rats was exposed to increasing work demands while given the choice between simultaneous fixed ratio ... -
Social facilitation of extinction in rats
(1991)Theories of resistance to extinction such as the generalized decrement theory (GDT) have been largely based on research involving isolated individuals. In the natural environment however, extinction, like acquisition ... -
The geology, petrology, geochemistry, sulphide and platinum-group mineralization of the Quetico intrusions, northwestern Ontario
(1992)The Quetico Intrusions are a group of small, geochemically primitive, locally Cu-Ni-PGE-rich, mafic to ultramafic intrusions closely associated with the margins of the Quetico Batholithic Complex. They are composed ... -
Granitoids and rare-element pegmatites of the Georgia Lake area, northwestern Ontario
(1985)The Georgia Lake pegmatite field is located in the Quetico Gneiss Belt of the Superior Province. Spodumene-bearing and subordinate beryl-bearing pegmatites of the Georgia Lake area are flanked to the south and east by ... -
Study of the third dimension in the Thunder Bay silver veins : fluid inclusion and stable isotope results
(1988)"Historic drill core from the Shuniah Mine and more recent drill core from the Keystone and Porcupine Mines have provided the basis for a study of these past silver-producing veins as a function of depth. Precipitation was ... -
Petrographic and fluid inclusion studies on the Metalore-Golden highway deposit, Thunder Bay district, Ontario
(1993)The gold-bearing Metalore shear zone and Golden Highway quartz-carbonate vein in the Beardmore-Geraldton Archean Greenstone Belt occur along the Paint Lake splay faults at the contact between metavolcanic rocks and ... -
Survey of the mainland and island belts, Thunder Bay Silver District, Ontario : fluid inclusions, mineralogy, and sulfur isotopes
(1987)The Thunder Bay Silver District is composed of two curvilinear groups of veins, the Mainland and Island Belts. The veins can be mineralogically divided into the barren, silverbearing, and 5-element association veins. During ... -
Study of zonation at the Nanisivik Zn-Pb-Ag mine, Baffin Island, Canada
(1985)Zn-Pb-Ag mineralization at Nanisivik, northwest Baffin Island, is hosted by Proterozoic, laminated dolostone of the Society Cliffs Formation. Mineralization of the Main Orebody is highly variable in terms of texture and ... -
NMR study of aqueous tetraalkylammonium silicates
(1994)Silicon-29 nuclear magnetic resonance (NMR) spectroscopy has been used to investigate the equilibrium distribution and kinetics of silicate oligomers in aqueous tetraalkylammonium silicate solutions. Certain tetraalkyl ... -
Dielectric studies of rigid and flexible molecules in various media
(1984)This thesis investigates mainly the molecular and intramolecular relaxation processes of some aromatic and aliphatic molecules containing rotatable polar groups and some analogous rigid molecules dispersed in (a) ... -
Some dielectric studies of molecular and intramolecular relaxation processes
(1984)Dielectric relaxation studies of some potential systems involving molecular interaction particularly intermolecular and/or intramolecular hydrogen bonding as well as of some related molecules have been carried out in ... -
Some dielectric and spectroscopic studies on hydrogen bonding
(1984)Dielectric relaxation studies were carried out principally on some hydroxy compounds (e.g., phenols) and some carboxylic acids in polystyrene (PS) matrices and, in some cases, in compressed solids (CS). The hydroxy compounds ... -
Dielectric relaxation and infrared studies of hydrogen bonding
(1985)Dielectric relaxation and infrared study of a number of associating (H-bonding) compounds in glassy media, mainly polystyrene, have been carried out. The dielectric measurements by a General Radio 1621 Precision ... -
Charles Ritchie and the English diary tradition
(1987)The literary merit of the diaries of Charles Ritchie is apparent to anyone who reads them. A more critical assessment is hindered, however, by the fact that there is as yet in Canada no literary context in which the ... -
Sound and silence in selected poetry of Duncan Campbell Scott
(1995)The poetry of Duncan Campbell Scott has always been recognized by the Canadian literary establishment as being worthy of attention. His work usually appears in most of the textbooks and anthologies of Canadian Poetry, ... -
Art and music in the fiction of Helen Weinzweig
(2000)Critics Northrop Frye and, more recently, Linda Hutcheon have commented tellingly on the relationships that exist among Canadian art, music and literature. Perhaps surprisingly, aside from an incidental comment here and ... -
Effects of seed sources and fungi on ectomycorrhizal formation and growth of containerized tamarack seedlings
(1985)The objectives of this study were to investigate the host specificity of mycorrhizal fungi to tamarack (Larix laricina (Du Roi) K. Koch.) in pure culture synthesis and to examine the effects of seed sources and fungal ... -
Inter-occupational and inter-industry empirical analysis of labour market segmentation in Canada
(1987)The theory of labour market segmentation represents an assault on the conventional tenets held by the neoclassical school of labour economics. Essentially, the segmentation approach views the economic structure of the ... -
Petrology, geochemistry, sulphide and platinum-group element mineralization of the Geordie Lake intrusion, Coldwell Complex, Ontario
(1989)PGE-bearing Geordie Lake intrusion is located in the north-central region of the Coldwell comples near the town of Marathon.
