Browsing by Title
Now showing items 1001-1020 of 3544
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Effects of bright light intervention on typical and atypical depressive symptoms and predictors of response
(2004)The objective of the present study was to investigate within a prospective design the seasonality and depression predictors of light therapy response after controlling for treatment expectancy and pre-therapy functioning. ... -
Effects of chronological age on mitochondrial DNA (mtDNA) deletion in muscle and blood of older individuals : a maternal line study
(2002)Since Harman ' fîrst proposed that the mitochondria plays a role in the aging process, several lines of research have been undertaken to support his theory. According to the theory, oxygen free radicals are responsible ... -
The effects of climate change on the growth and spawning phenology of fishes in aquatic boreal environments
(2022)Global climate change is occurring and observed warming patterns have had significant impacts on aquatic environments as trends in water temperature are closely related to trends in air temperature. In ectothermic organisms ... -
Effects of CO2 elevation on the responses to flooding in black spruce (P. mariana) and tamarack (L. larcina) seedlings
(2016)Anthropogenic activities have been increasing the atmospheric CO2 concentration globally and the increase is predicted to continue to rise in the future. Increased CO2 has been shown to increase photosynthetic rates as ... -
Effects of cognitive strategies on ergometer performance of female rowers
(1985)The purpose of this study was to examine the effects of cognitive strategies on the performance of four female rowers. The independent variables were the three strategy conditions. The major dependent variable was the ... -
Effects of cognitive strategies on the performance of athletes
(1977)The purpose of this thesis was to study the effects of various cognitive strategies on the treadmill running performance of intercollegiate wrestlers (N=12), The independent variables were the four cognitive strategies ... -
Effects of cognitive strategies on the performance of female swimmers
(1982)The purpose of this thesis was to examine the effects of cognitive strategies on the performance of three female swimmers. The independent variables were the three strategy conditions that were used by the subjects. The ... -
The effects of competition on underplanted juvenile white spruce in fill blocks in northern Alberta
(2020)This paper examined the effects of competition on juvenile white spruce growth planted in the understory of lodgepole pine on a mixedwood boreal site. Growth and success of planted white spruce seedlings were investigated ... -
Effects of concentric and eccentric contractions on strength, retention and bilateral transfer
(1978)The purpose of this study was to examine the effects of two different strength training methods, (concentric and eccentric) on strength, retention and bilateral transfer. Subjects were 22 male volunteers, aged 16 to 17. ... -
Effects of container volume and shape on the growth of black spruce (Picea mariana (Mill.) B.S.P.) seedlings
(1984)The objective of this thesis was to evaluate the growth of black spruce seedlings in containers with four soil volumes (45, 90, 180, 360 cm3) and at three diameter/depth shapes (1:2, 1:3, 1:4). Seedling height, root collar ... -
The effects of copper, calcium, and nickel on the olfactory response of fathead minnows: from neurophysiology to behaviour
(2014-01-22)The olfactory system is essential for a fish to be successful in an ecological context, and has been demonstrated to be sensitive to a variety of toxicants. The current biotic ligand model (BLM) for copper is an acute-toxicity ... -
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 ...