Browsing Retrospective theses by Title
Now showing items 440-459 of 1602
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Effects of copper, zinc and cadmium on the pigments and photosynthesis of black spruce (Picea mariana (Mill.) B.S.P) seedlings
(1995)The purpose of this study was to quantify the effects of heavy metals on pigments and photosynthesis in four and a half month old black spruce (Picea mariana (Mill.) B.S.P.) seedlings. Photosynthetic pigment analysis by ... -
Effects of creative and noncreative problem-solving on anxiety
(1983)This study investigated whether the type of problem involved in creative performance increases anxiety level to a greater extent than the type of problem involved in noncreative performance. Subjects were 9 male and ... -
Effects of d-amphetamine sulfate and UCS-levels on one-way avoidance behaviour of two selectively bred strains of rat
(1973)Two experiments were carried out involving 40 animals of RHA/Lu and RLA/Lu strains in a one-way active avoidance situation. Subjects were tested for avoidance conditioning and activity with seven behavioural measurements ... -
Effects of depressed pH on reproduction, growth and survival of flagfish, Jordanella floridae (Good and Bean)
(1978)Breeding communities of flagflsh {Jordanella floridae) were exposed to adjusted pH levels of 6.0, 5.5, 5.0, 4.5 and 4.0 for 21 days. Control water (pH 7.5) received no acid treatment. Egg production was significantly ... -
Effects of depressed pH on survival, growth and reproduction of brook trout, Salvelinus fontinalis (Mitchill)
(1977)Brook trout were continuously exposed to depressed pH values from 4.0 to 6.0, at 0.5 unit Intervals during a nine-month partial-chronic bloassay. At all pH levels above 4.0, Juvenile fish exhibited greater than 96 per ... -
Effects of different forms of prostate specific antigen on prostate cancer cell invasion / by Andrew Philip Cumming
(2007, c200)Prostate cancer (PCa) is one of the most common cancers in males around the world. Prostate-specific antigen (PSA) is a serine protease that is secreted at high levels by prostate epithelial cells and most prostate cancer ... -
Effects of differential food deprivation on partial reinforcement in two selectively bred strains of rats
(1975)The effects of three levels of food deprivation, and shift in reinforcement patterns were investigated in selectively bred high-(RHA/Lu) and low( RLA/Lu) avoidance strains. The high-avoidance strain responded to the ... -
Effects of early education on later social, adaptative and behavioural functioning / by Arlene D. Whiffen.
The effects of early education on later social, adaptive and behavioural functioning was assessed using the Child Behavior Checklist and the Teacher’s Report Form. Twenty- five primary grade children who had been ... -
Effects of electrial stimulation and isokinetic exercise on serum enzymes and electrolytes
(1986)The purpose of this study was to determine the effects of short-term electrical stimulation of the quadriceps muscle, isokinetic leg extension and flexion exercise, and combined electrical stimulation and isokinetic ... -
Effects of electrical stimulation, isokinetic exercise and concurrent isokinetic exercise with electrical stimulation on acquisition and retention of strength, endurance and bilateral transfer in females
(1985)The purpose of this study was to examine the effects of four different training methods (isokinetic exercise, electrical muscle stimulation, concurrent electrical muscle stimulation with isokinetic exercise, and no ... -
Effects of elevated carbon dioxide concentration and light on biomass morphology and physiology of black spruce and white spruce seedlings
(2008)Carbon dioxide concentration and light interactions influence competition among boreal tree species, though little is known about the exact effects. The interactive effects of [CO 2 ] and light on growth, biomass production, ... -
Effects of flavopiridol on Cdk2 activity in cultured cell lines
(2005)Flavopiradol reduced cyclin-dependent kinase activity by competititve inhibition with ATP by binding to the ATP-binding pocket of these cell cycle regulators ... it was thought that flavopiradol would be an excllent inhibitor ... -
Effects of forest fires on timber harvest levels
(1994)Traditional approaches to timber management planning do not address the realities of catastrophic wildfire. The model FORMAN is one of the operational wood supply models used in Ontario for forest regulation. The FORTRAN ... -
Effects of forest management, weather, and landscape pattern on furbearer harvests at large-scales
(2003)Over the past 50 years, Ontario’s forest landscape has changed due to ever increasing natural resource management. The natural vegetation pattern, forest composition, and the fire regime have been altered. Maintaining ... -
Effects of gender and sociosexuality on AIDS-preventive self-efficacy and AIDS-preventive behaviour / by Melissa L. Keeping.
(2000)The information-motivation-behavioral skills (IMB) model of AIDS-preventive behaviour (Fisher & Fisher, 1992) was used to examine the relationships among AIDS-preventive knowledge, motivation, self-efficacy, and behaviour. ... -
Effects of globalization and corporate downsizing on employee health
(2007)The purpose of this study was to assess the impact of corporate downsizing; a function of globalization, on the self-reported physical and mental health of unionized individuals employed in the primary sector of the ... -
Effects of harvest treatments on spruce budworm, Choristoneura fumiferana (Clem.) (lepidoptera: Tortricidae), dispersal within forest stands
(1996)Dispersal is a critical trait during the life history of the spruce budworm, Choristoneura fumiferana (Clem.), which leads to its widespread infestation and damage. Budworm dispersal study is of importance for protecting ... -
Effects of harvesting, prescribed burning and wildfire on soil chemical properties in Northwestern Ontario
(1997)Soil chemistry responses to disturbances were quantified and compared at two dates by sampling the organic, 0-5 cm and 5-10 mineral soil layers in a northwestern Ontario boreal mixedwood site. The disturbance treatments ...