Browsing by Title
Now showing items 3533-3552 of 3648
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Validation of discrete ordinate radiation model for application in UV air disinfection modeling
(2014)This study investigated one of the most important aspect of ultra-violet (UV) air disinfection modeling which is radiation modeling. Radiation modeling is a topic of interest in the domain of UV air disinfection research. ... -
Validation of the Diabetes Attitude Scale on a sample of Quebec health-care professionals
(1994)The following study aimed to: (1) compose a French version ofAnderson et al.'s (1989) original Diabetes Attitude Scale (DAS) by sampling 5 groups of Quebec health care professionals; (2) increase the reliability and ... -
Validity of the K-Bit and a WISC-III short form with a sample of adolescent young offenders
(1995)The present study investigated the concurrent validity and testretest reliability of the Kaufman Brief Intelligence Test (K-BIT; Kaufman & Kaufman, 1990) by comparing it to the full scale administration of the Wechsler ... -
Valorization of Kraft lignin via alkaline and acid- mediated aerobic oxidation processes
(2023)Lignin is a complex heterogeneous aromatic compound derived from renewable plant biomass. Due to its aromatic backbone, it has grown interested in producing biochemicals and other polymeric applications. Depending on the ... -
Vapnik-Chervonenkis dimension in neural networks
(2023)This thesis aims to explore the potential of statistical concepts, specifically the Vapnik-Chervonenkis Dimension (VCD)[33], in optimizing neural networks. With the increasing use of neural networks in replacing human ... -
Variability in women's perception of potential female rivals: effects of fertility, mating orientation, and revealing dress biases
(2017)Two studies were conducted to better understand individual difference factors that influence women’s mating-relevant perceptions of other women. In Study 1, biases about revealing dress were examined and the extent to which ... -
Variability of ionic magnesium
(2001)With the invention o f the ion-selective electrode, ionic magnesium (iMg), the biologically active form of Mg, is a common blood assay. There is some evidence that iMg has considerable within subject variability. To ... -
Variable interval schedule control of dispersion and density
(1984)The effects of Variable Interval (VI) schedules of reinforcement on the dispersion patterns and aggregate densities of a small population of rats was studied. Eight male rats were permanently housed in an arena in which ... -
Variable ratio schedule control of dispersion in a patchy environment
(1989)Current ecological theory suggests that foraging animals are controlled by the distribution and abundance of food resources. Contemporary ecological research focuses on optimizing resources through the maximization of ... -
Variation in vessel diameter and leaf area of white birch (Betula papyrifera) along moisture gradients in Canada
(2010)One of the key hypotheses of this research is that white birch that has evolved in wet areas will have larger vessels than those trees that evolved in dry areas. Since the wet areas are less likely to experience drought ... -
Variation of fungal endophyte diversity between healthy branches of balsam fir and branches infected with fir broom rust
(2020)A total of 241 isolation attempts were made, with 233 yielding cultures from 61 branches collected from two balsam fir trees. The most commonly found fungal endophyte in healthy branches of balsam fir was Foveostroma ... -
Variation of poplar sap flow and its response to meteorological factors
(2021)The purpose of this paper was to analyze the changes of poplar sap flow, to explore the meteorological factors affecting the changes of poplar sap flow and their response laws, so as to provide a theoretical basis for ... -
Variation of syllepsis in eleven tamarack [Larix laricina (Du Roi) K. Koch] provenances in Northwestern Ontario and its relation with height growth
(1990)Variation in syllepsis of tamarack and its relationship to juvenile height growth in eleven tamarack provenances from northwestern Ontario was evaluated in a four-year-old clonal test planted at Thunder Bay, Ontario. ... -
Variation of wood properties in a single stem of jack pine (Pinus banksiana Lamb.)
(2002)Radial and axial variation of tracheid length, relative density, ring width, radial and tangential shrinkage, and juvenile and mature wood volume were studied in a single stem of jack pine, 37 km north of Thunder Bay. ... -
Variation of wood properties within a dominant and suppressed tree of tamarack (Larix laricina (Du Roi) K. Koch)
(1987)Radial and axial variations of tracheid length, specific gravity, ring width, and latewood percentage were studied from the stems of a dominant and a suppressed tamarack tree. The trees were 81 and 83 years old respectively, ... -
Variations in metamorphic grade in metapelites in transects across the Quetico Subprovince north of Thunder Bay, Ontario
(1992)The Quetico subprovince is a northeast-southwest striking linear belt of migmatites, gneisses, and metasedimentary rocks. These Archean rocks form part of the southern Superior Province- This study involves an examination ... -
Variations of saproxylic beetle assemblages within the same white spruce logs across early and advanced decay classes
(2024)Saproxylic species play a multitude of essential ecological roles within the forest ecosystem by undergoing a distinct succession as deadwood decays in the early to late successional stages. As of 2024, knowledge regarding ... -
Varying food quality and its influence on spruce budworm growth, development, and fecundity
(1995)These studies assess how changing food quality influences spruce budworm, Choristoneura fumiferana (Clem.), in terms of the performance characteristics of survival, development, growth, and fecundity. The components of ... -
Vegetation and vegetation-environment relationships in a muskeg-fen near Thunder Bay, Ontario
(1979)This study takes place in an endangered peatland within the city of Thunder Bay Ontario. The study area, William Bog, is one of a few remaining peatlands in the Thunder Bay district which have developed on abandoned Minong ... -
Vegetation response to harvesting, harvesting and prescribed-burning and wildfire in Northwestern Ontario : patterns of reproductive strategies and nutrient accumulation
(1997)Initial species composition was investigated on a group of boreal mixedwood sites that had experienced various forms of disturbance. The hypothesis explored was that environmental changes caused by different disturbances ...
