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Now showing items 3447-3466 of 3551
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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 ... -
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 ... -
Vegetative and sexual phenology, reproductive dynamics and bud differentiation in a clonal seed orchard of white and black spruce
(1981)To evaluate the importance of phenology and strobilus production in a clonal seed orchard of white and black spruce, 14 clones of each species represented by 4 ramets each, were selected from the Mattawin seed orchard. ... -
Verbal content and affective response in an interview : as a function of experimenter gaze direction
(1974)This study was designed to investigate the effects of one's looking or not looking at another's eyes upon the content of the other's speech and his affective response to the encounter. The relationships between experimenter ... -
Vertical De-Integration in the Mutual Fund Industry: Using Knowledge as a Factor of Production
(Wiley, 2014)This paper extends the knowledge-based view of the firm by using relative measures of two fundamental classifications of knowledge as factors of production. It relates differences in relative quantities of these classifications ... -
Vertical integration : applying an economic calculus to knowledge
(Inderscience Publishing, 2005-01-19)This paper applies an economic calculus to knowledge to address one of the most strategically important questions firms face – deciding which activities are more economically organised in a unified firm rather than in two ... -
Vibration control using switchable stiffness
(2015-01-13)Over the last decade, the switchable stiffness (SS) control strategy has seen renewed academic interest due to the need for effective vibration control techniques. The SS control strategy involves switching the system’s ... -
Vibration suppression and energy harvesting with a variant nonlinear energy sink
(2018)Vibration control is aimed to suppress or eliminate unwanted vibration to ensure proper operation of machines. On the other hand, energy harvesting intends to scavenge energy from ambient vibrations to power electronical ... -
Vibration suppression in a traversing mass-cantilever beam system
(2003)A cantilever beam carrying a traversing spring-mass system is modeled. Applications of the system include robot traversing on space trusses, loads moving along stacker cranes carrying moving loads in a large warehouse, ... -
Violence and masculinity in Hollywood war films during World War II
(2013-02-03)During World War II, the Hollywood studios produced an unprecedented number of war-themed films in order to help prepare American audiences for what was to come, as well as to profit from the popularity of anything pertaining ...