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152. Surface rutting of thin pavements and gravel roads under standard and reduced tire inflation pressures.
- Author
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Shalaby, Ahmed and Reggin, Alan
- Subjects
INFLATION pressure of automobile tires ,TRUCKS ,ROADS ,STATISTICS - Abstract
In Canada, over 300 heavy vehicles equipped with central tire inflation systems are being used in forestry, mining, and grain hauling. Since 1995, Saskatchewan Highways and Transportation has permitted truck fleets to operate with primary highway axle loads on secondary highways under a partnership program. This paper reports on the comparison of rutting progression on an accelerated field experiment utilizing standard and reduced tire pressures. The experiment was conducted by Saskatchewan Highways and Transportation in the Big Quill Lake area of southern Saskatchewan. The vehicles used in the experiment were nine-axle B trains, eight-axle B trains, and six-axle semi-trailers. The statistical analysis of rutting data presented in the paper shows that reduced tire pressures can effectively extend the pavement service life of gravel and thin membrane surfaced roads. On the thin membrane pavements, there was less rutting on the low-pressure lane until twice as many vehicles had trafficked the road, and rutting was no worse on the low-pressure lane even when 10 times as many vehicles had trafficked the road. On the gravel surface, rut depth was lower on the low-pressure lane until twice as many trucks had trafficked that lane.Key words: rutting, pavement, central tire inflation, tire pressure, low-volume roads, unsurfaced roads.Au Canada, plus de 300 véhicules lourds équipés de systèmes centraux de gonflement des pneus sont en usage dans les secteurs forestier et minier et pour le transport de grains. Depuis 1995, le département des autoroutes et des transports de la Saskatchewan (« Saskatchewan Highways and Transportation ») a permis aux flottes de camions d'opérer sur des autoroutes secondaires avec des charges aux essieux pour autoroutes primaires dans le cadre d'un programme de partenariat. Cet article se penche sur la comparaison de la progression de l'orniérage lors d'un essai accéléré sur le terrain en utilisant des pressions normales et réduites pour les pneus. L'essai a été conduit par le département des autoroutes et des transports de la Saskatchewan dans la région du lac Big Quill, dans le sud de la province. Les véhicules employés durant l'essai ont été des trains routiers de type B à neuf essieux, des trains routiers de type B à huit essieux et des semi-remorques à six essieux. Les analyses statistique des données sur l'orniérage présentées dans cet article montrent que des pressions réduites pour les pneus peuvent de fait étendre la durée de vie de la chaussée pour des routes de gravier et à membrane mince. Sur les chaussées à membrane mince, il y a moins d'orniérage sur la voie employée avec des pneus à pression réduite jusqu'à ce que le traffic de véhicules soit deux fois plus élevé, et l'orniérage n'est pas plus mauvais sur la voie dédiée pour les pneus à pression réduite même lorsque le traffic de véhicules est dix fois plus élevé. Sur la surface de gravier, la profondeur des ornières est plus basse sur la voie pour les pneus à pression réduite jusqu'à ce que le traffic de camions soit deux plus élevé.Mots clés : orniérage, chaussée, gonflement de pneus central, pression de pneus, routes à volume réduit, routes non-pavées.[Traduit par la Rédaction] [ABSTRACT FROM AUTHOR]
- Published
- 2002
- Full Text
- View/download PDF
153. Seasonal weight limits on prairie region highways: opportunities for rationalization and harmonization.
- Author
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Montufar, Jeannette and Clayton, Alan
- Subjects
TRUCK weight ,TRUCK sizes ,TRUCKING - Abstract
There are a myriad of laws, regulations, and policies governing the operating weights and dimensions of trucks. In Canada and many northern states, these regulations form a continuum of basic limits, seasonal variations, and overweight/overdimension limits that are legally permitted. This paper deals with the seasonal aspects of weight limits (winter weight premiums and spring weight restrictions) governing trucking within and to and from the prairie region. This region encompasses Manitoba, Saskatchewan, and Alberta, and the northern tier states of Minnesota, North Dakota, and Montana. The paper presents results of research conducted for the transportation departments of the three prairie provinces and Public Works and Government Services Canada. It discusses existing winter weight premium and spring weight restriction regulations, as well as basic weight regulations in the region, and their technical rationale. It examines possibilities for using advanced technologies to help harmonize and rationalize seasonal truck size and weight regulations and enforcement practices, and identifies immediate opportunities for rationalization and harmonization of spring weight restrictions and winter weight premiums. [ABSTRACT FROM AUTHOR]
- Published
- 2002
- Full Text
- View/download PDF
154. Timing and tectonic setting of Stikine Terrane magmatism, Babine-Takla lakes area, central British Columbia.
- Author
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MacIntyre, D G, Villeneuve, M E, and Schiarizza, P
- Subjects
STRUCTURAL geology ,PHYSICAL geology ,MAGMATISM ,LAKES - Abstract
New bedrock mapping completed as part of the Nechako NATMAP Project indicates that the area between Babine and Takla lakes in central British Columbia is underlain by rocks of the Early Permian Asitka, Late Triassic Takla, and Early to Middle Jurassic Hazelton volcanic-arc assemblages of the Stikine Terrane. These are cut by large composite stocks of quartz diorite, granodiorite, and quartz monzonite previously mapped as the Late Triassic to Early Jurassic Topley intrusions. New U/Pb (n = 6) and laser [sup 40] Ar/[sup 39] Ar (n = 10) isotopic age dates reported in this paper suggest there are two distinct ages of plutons: the Topley intrusive suite with isotopic ages between 218 and 193 Ma; and, east of Babine Lake, the new Spike Peak intrusive suite with isotopic ages ranging from 179 to 166 Ma. West of the main plutonic belt is a thick volcanic succession of subaerial, porphyritic andesite flows, volcanic breccias, and rhyolitic ash-flow tuffs that have isotopic ages between 185 and 174 Ma. These rocks are assigned to the Saddle Hill Formation of the Hazelton Group. The plutonic roots of this proximal arc assemblage are most likely the coeval and compositionally similar plutons of the Spike Peak intrusive suite that have been unroofed in the area east of the Takla Fault. Major oxide and trace element data support the interpretation that the Topley and Spike Peak granitic rocks formed in a juvenile volcanic-arc environment and that magmatism is related to melts generated above a long-lived subduction zone of unknown orientation.Une nouvelle cartographie effectuée dans le cadre du projet NATMAP Nechako indique que la région entre les lacs Babine et Takla au centre de la Colombie-Britannique est recouverte de roches des assemblages d'arcs volcaniques du terrane de Stikine, soit Asitka du Permien précoce, Takla du Trias tardif et Hazelton du Jurassique précoce à moyen. Ces assemblages sont recoupés par des petits massifs intrusifs composites de diorite quartzique, de granodiorite et de monzonite quartzique qui avaient auparavant été cartographiés en tant que les intrusions Topley, du Trias tardif au Jurassique précoce. De nouvelles datations U-Pb (n = 6) et isotopes laser [sup 40] Ar/[sup 39] Ar (n = 10) présentées dans cet article suggèrent deux âges distincts de plutons, soit la suite intrusive de Topley avec des âges isotopiques entre 218 et 193 Ma et, à l'est du lac Babine, la nouvelle suite intrusive de Spike Peak dont les âges isotopiques varient de 179 à 166 Ma. À l'ouest de la ceinture plutonique principale se trouve une séquence volcanique épaisse d'écoulements subaériens d'andésite porphyrique, des brèches volcanique et des tufs d'écoulement de cendre rhyolitique dont les âges isotopiques varient entre 185 et 174 Ma. Ces roches sont assignées à la Formation de Saddle Hill du Groupe Hazelton. Les racines plutoniques de cet assemblage d'arc proximal sont fort probablement les plutons contemporains et à composition similaire de la suite intrusive de Spike Peak qui ont été décapés dans la région à l'est de la faille de Takla. Les données sur les principaux oxydes et les éléments traces corroborent l'interprétation que les roches granitiques de Topley et de Spike Peak se sont formées dans un environnement d'arc volcanique juvénile et que le magmatisme est relié aux fusions qui se sont produites au-dessus d'une ligne de subduction de longue durée mais dont l'orientation est inconnue.[Traduit par la Rédaction] [ABSTRACT FROM AUTHOR]
- Published
- 2001
- Full Text
- View/download PDF
155. Geochronology of mid-Cretaceous to Eocene magmatism, Babine porphyry copper district, central British Columbia.
- Author
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MacIntyre, D G and Villeneuve, M E
- Subjects
HISTORICAL geology ,GEOLOGICAL time scales ,MAGMATISM ,PORPHYRY ,IGNEOUS rocks - Abstract
New U/Pb and [sup 40] Ar/[sup 39] Ar isotopic dating in the Babine porphyry copper district of central British Columbia documents three distinct magmatic events at 107–104, 85–78, and 54–50 Ma. The earliest event involved emplacement of rhyolite domes into submarine volcanic rocks of the Rocky Ridge Formation. The rhyolite domes and related dacitic to basaltic volcanic rocks gave a U–Pb age of 107.9 ± 0.2 Ma and an [sup 40] Ar/[sup 39] Ar age of 104.8 ± 1.2 Ma. The rhyolites, which were previously mapped as Eocene, are reinterpreted to be part of a previously unrecognized mid-Cretaceous cauldron subsidence complex. The regionally extensive Late Cretaceous magmatic event is also recognized in the Babine district and is represented by [sup 40] Ar/[sup 39] Ar ages of 85.2 ± 2.8 and 78.3 ± 0.8 Ma on two Bulkley intrusions, one of which has associated porphyry copper mineralization. The final magmatic event is the most widespread and involved emplacement of the Babine intrusions and formation of numerous porphyry copper deposits including the Bell and Granisle past producers. Twenty-one new [sup 40] Ar/[sup 39] Ar isotopic ages for these intrusions and coeval andesites of the Newman Formation have a narrow range from 53.6 ± 0.9 to 49.9 ± 0.6 Ma, whereas previous K–Ar isotopic dating had a possible range of 15 Ma. The mid-Cretaceous, Late Cretaceous, and Eocene magmatic suites in the Babine district are interpreted to be part of a long-lived volcano-plutonic complex that was the site of periodic magmatism and porphyry copper mineralization over a 60 Ma time period. This complex may have evolved within a zone of extension (pull-apart basins) situated between dextral strike-slip faults that were active during periods of rapid oblique plate convergence.De nouvelles datations U–Pb et isotopiques [sup 40] Ar/[sup 39] Ar dans le district de cuivre porphyrique Babine, du centre de la Colombie-Britannique, documentent trois événements magmatiques distincts à 107–104 Ma, 85–78 Ma et 54–50 Ma. L'événement le plus précoce impliquait la mise en place de dômes de rhyolite dans les roches volcaniques sous-marines de la Formation de Rocky Ridge. Les dômes de rhyolite et les roches volcaniques apparentées dacitiques à basaltiques ont donné un âge U–Pb de 107,9 ± 0,2 Ma et un âge [sup 40] Ar/[sup 39] Ar de 104,8 ± 1,2 Ma. Les rhyolites, antérieurement cartographiées comme datant de l'Éocène, sont réinterprétées comme faisant partie d'un complexe de cuvettes d'effondrement auparavant non reconnues et qui dateraient du Crétacé moyen. Le magmatisme extensif régional du Crétacé tardif est aussi reconnu dans le district de Babine et il est représenté par des âges [sup 40] Ar/[sup 39] Ar de 85,2 ± 2,8 et 78,3 ± 0,8 Ma sur deux intrusions Bulkley, dont l'une présente une minéralisation associée de cuivre porphyrique. L'événement magmatique final est le plus répandu et il comprend la mise en place des intrusions Babine et la formation de nombreux gisements de cuivre porphyrique incluant les anciens gisements productifs de Bell et de Granisle. Vingt et un nouveaux âges [sup 40] Ar/[sup 39] Ar pour ces intrusions et des andésites contemporaines de la Formation Newman ont une plage étroite de 53,6 ± 0,9 à 49,9 ± 0,6 alors que des datations antérieures d'isotopes K–Ar avaient une plage de 15 Ma. Les suites magmatiques du Crétacé moyen, du Crétacé tardif et de l'Éocène dans le district de Babine sont interprétées comme faisant partie d'un complexe volcano-plutonique de longue durée où s'est produit du magmatisme périodique et de la minéralisation en cuivre porphyrique durant une période de 60 Ma. Ce complexe peut avoir évolué à l'intérieur d'une zone d'extension (basins d'extension) située entre des failles dextres à décrochement horizontal qui étaient actives durant les périodes de convergence rapide et oblique des plaques.[Traduit par la Rédaction] [ABSTRACT FROM AUTHOR]
- Published
- 2001
- Full Text
- View/download PDF
156. Productivity, nutritive value, and profitability of high-digestibility alfalfa cultivars harvested at two stages of development in eastern Canada.
- Author
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Boucher, Marie-Soleil, Tremblay, Gaëtan F., Seguin, Philippe, Thériault, Mireille, Charbonneau, Édith, Laroche, Jean-Philippe, Bertrand, Annick, Claessens, Annie, Bélanger, Gilles, and Halde, Caroline
- Subjects
ALFALFA ,CULTIVARS ,FEED analysis ,VALUE (Economics) ,HARVESTING ,DAIRY cattle - Abstract
Alfalfa (Medicago sativa L.) cultivars developed for improved digestibility by conventional breeding or genetic modification have not been evaluated in eastern Canada. This study compared yield, nutritive value, and profitability of two reduced-lignin genetically modified (GM) cultivars, three conventionally selected for low lignin or high pectin, and one population with improved stem degradability, with two commercially adapted cultivars as controls. Alfalfa was harvested at the early bud (intensive management) or early flower (extensive management) stage of development during the first post-seeding year at three sites and the second post-seeding year at one site. All cultivars/populations had similar annual dry matter (DM) yields, except for the lower DM yield (−20%) of the improved stem degradability population. Conventionally selected cultivars for improved digestibility did not differ from control cultivars for in vitro DM digestibility (IVTD) and neutral detergent fiber digestibility (NDFd). Reduced-lignin GM cultivars, however, had a greater IVTD and NDFd (+10%) and less lignin (−10%) than control cultivars at the same stage of development. Reduced-lignin GM cultivars under extensive management had similar NDFd and greater annual DM yield (+1 to 2 Mg DM ha
−1 ), but reduced total digestible nutrients (−41 to 44 g kg−1 DM), in comparison to control cultivars under intensive management. Using partial budget analysis, the comparison of more digestible GM cultivars to the control cultivars resulted in an increase in annual farm net profits ranging from CAD$7.40 to $79.60 cow−1 year−1 depending on stage of development at harvest. Further investigations are needed to quantify the performance of dairy cows fed cultivars with improved digestibility. [ABSTRACT FROM AUTHOR]- Published
- 2023
- Full Text
- View/download PDF
157. Picea × darwyniana Björk & Goward: an invalid taxonomic name.
- Author
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Strong, W.L
- Subjects
WHITE spruce ,TWIGS - Abstract
Picea × darwyniana Björk & Goward was recently proposed to replace Picea albertiana S. Brown as the representative taxon for the hybrid offspring of Picea glauca (Moench) Voss and Picea engelmannii Parry ex Engelm., but should be considered invalid for three reasons. First, the proponents failed to document in any way that the P. albertiana isotypes were Picea glauca × mariana Little & Pauley hybrids, as they claimed. Secondly, the P. albertiana isotypes lacked pubescent twigs, purple markings on their seed cones, and denticulate cone-scale margins, which are characteristics of P. glauca × mariana. This indicates a misinterpretation of the P. albertiana parentage. Lastly, P. × darwyniana appears to be an example of P. albertiana ssp. ogilviei Strong & Hills. As the latter is an earlier and validly published name, P. × darwyniana is an illegitimate replacement for plants within the P. glauca × engelmannii (=P.a. ssp. albertiana) and P. engelmannii × glauca (=P.a. ssp. ogilviei) circumscriptions based on naming priority. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
158. Identifying local stress increase using a relative apparent stress ratio for populations of mining-induced seismic events.
- Author
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Brown, Laura and Hudyma, Martin
- Subjects
INDUCED seismicity ,MINING engineering ,STRAINS & stresses (Mechanics) ,EARTHQUAKE hazard analysis ,MINES & mineral resources ,MODULUS of rigidity ,STRESS-strain curves - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2017
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159. Dietary assessment is a critical element of health research - Perspective from the Partnership for Advancing Nutritional and Dietary Assessment in Canada.
- Author
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Labonté, Marie-Ève, Kirkpatrick, Sharon I., Bell, Rhonda C., Boucher, Beatrice A., Csizmadi, Ilona, Koushik, Anita, L'Abbé, Mary R., Massarelli, Isabelle, Robson, Paula J., Rondeau, Isabelle, Shatenstein, Bryna, Subar, Amy F., and Lamarche, Benoît
- Subjects
ENRICHED foods ,BIOMARKERS ,DIET ,ENDOWMENT of research ,FOOD habits ,GOAL (Psychology) ,INTERPROFESSIONAL relations ,HEALTH policy ,MEDICAL research ,MEDICAL societies ,NUTRITIONAL assessment ,POPULATION geography ,SELF-evaluation ,MEASUREMENT errors ,RESEARCH personnel ,CONTENT mining - Abstract
Copyright of Applied Physiology, Nutrition & Metabolism is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2016
- Full Text
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160. Assessment of low temperature exposure for design and evaluation of elastomeric bridge bearings and seismic isolators in Canada.
- Author
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Guay, Louis-Piérick and Bouaanani, Najib
- Subjects
ELASTOMERS ,BRIDGE bearings ,BRIDGES ,ISOLATORS (Engineering) ,LOW temperature engineering ,CRYSTALLIZATION ,STIFFNESS (Engineering) - Abstract
Copyright of Canadian Journal of Civil Engineering is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2016
- Full Text
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161. Response modification factors for steel buckling restrained braced frames designed as per the 2010 National Building Code of Canada.
- Author
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Moni, Moniruzzaman, Moradi, Saber, and Alam, M. Shahria
- Subjects
MECHANICAL buckling ,STEEL ,CONSTRUCTION laws ,EARTHQUAKE engineering ,DUCTILITY ,SPANS (Structural engineering) - Abstract
Copyright of Canadian Journal of Civil Engineering is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2016
- Full Text
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162. The Canadian 24-Hour Movement Guidelines for Children and Youth: Implications for practitioners, professionals, and organizations.
- Author
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Latimer-Cheung, Amy E., Copeland, Jennifer L., Fowles, Jonathon, Zehr, Lori, Duggan, Mary, and Tremblay, Mark S.
- Subjects
HEALTH promotion ,PROFESSIONAL associations ,HUMAN services programs ,SEDENTARY lifestyles ,PHYSICAL activity - Abstract
Copyright of Applied Physiology, Nutrition & Metabolism is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2016
- Full Text
- View/download PDF
163. Changes in land, feed, and manure management practices on beef operations in Canada between 2005 and 2011.
- Author
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Sheppard, S.C., Bittman, S., Macdonald, D., Amiro, B.D., Ominski, K.H., and Plaizier, J.
- Subjects
BEEF cattle feeding & feeds ,CATTLE manure ,MANURES ,GRAZING ,FORAGING behavior ,GRAIN as feed ,BEEF industry ,MANAGEMENT - Abstract
Copyright of Canadian Journal of Animal Science is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2016
- Full Text
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164. Research that informs Canada’s physical activity guides: an introduction.
- Author
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Tremblay, Mark S., Shephard, Roy J., and Brawley, Lawrence R.
- Subjects
PHYSICAL activity ,GUIDELINES ,SOCIAL marketing ,BEHAVIORAL assessment - Abstract
Copyright of Applied Physiology, Nutrition & Metabolism is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2007
- Full Text
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165. Analysis of solid waste management systems in Alberta and British Columbia using provincial comparison.
- Author
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Bruce, Nathan, Asha, Aklima Zerin, and Ng, Kelvin Tsun Wai
- Subjects
WASTE management ,SOCIOECONOMIC factors ,FARMS ,PUBLIC spending ,TAX revenue estimating - Abstract
Copyright of Canadian Journal of Civil Engineering is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2016
- Full Text
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166. Reliability-based geotechnical design in 2014 Canadian Highway Bridge Design Code.
- Author
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Fenton, Gordon A., Naghibi, Farzaneh, Dundas, David, Bathurst, Richard J., and Griffiths, D.V.
- Subjects
BRIDGE design & construction ,DESIGN codes (Law) ,LOAD factor design ,PUBLIC works ,GEOTECHNICAL engineering - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2016
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167. Agricultural support policy in Canada: What are the environmental consequences?
- Author
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Eagle, Alison J., Rude, James, and Boxall, Peter C.
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AGRICULTURAL policy ,AGRICULTURE ,ENVIRONMENTAL chemistry ,AGRICULTURAL productivity - Abstract
Copyright of Environmental Reviews is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2016
- Full Text
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168. Comparative study of cold-climate constructed wetland technology in Canada and northern China for water resource protection.
- Author
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Chouinard, A., Anderson, B.C., Wootton, B.C., and Huang, J.J.
- Subjects
CONSTRUCTED wetlands & the environment ,WETLAND ecology ,WATER conservation ,WATER pollution ,ENVIRONMENTAL monitoring - Abstract
Copyright of Environmental Reviews is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2015
- Full Text
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169. Background to some of the seismic design provisions of the 2015 National Building Code of Canada.
- Author
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Humar, Jagmohan
- Subjects
EARTHQUAKE resistant design ,CONSTRUCTION laws ,EARTHQUAKE hazard analysis ,EARTHQUAKES ,GLAZING (Glass installation) ,ELEVATORS ,BUILDING foundations - Abstract
Copyright of Canadian Journal of Civil Engineering is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2015
- Full Text
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170. Characteristics of forest legacies following two mountain pine beetle outbreaks in British Columbia, Canada.
- Author
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Alfaro, René I., van Akker, Lara, and Hawkes, Brad
- Subjects
FORESTS & forestry ,MOUNTAIN pine beetle ,INSECT-plant relationships ,FOREST dynamics ,FOREST canopies - Abstract
Copyright of Canadian Journal of Forest Research is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2015
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171. A pan-Canadian assessment of empirical research on post-disturbance recovery in the Canadian Forest Service.
- Author
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Waldron, Kaysandra, Thiffault, Nelson, Venier, Lisa, Bognounou, Fidèle, Boucher, Dominique, Campbell, Elizabeth, Whitman, Ellen, Brehaut, Lucas, and Gauthier, Sylvie
- Subjects
FOREST management ,FOREST resilience ,FOREST fire management ,LOGGING ,FOREST regeneration - Abstract
Information about post-disturbance regeneration success and successional dynamics is critical to predict forest ecosystem resistance and resilience to disturbances and climate change. Our objective was to identify and classify post-disturbance empirical research conducted by the Canadian Forest Service (CFS) of Natural Resources Canada and their collaborators to provide guidance on future research needs, improving our understanding of post-disturbance recovery in a Canadian context. To achieve our objective, we collected and classified peer-reviewed and non-published literature produced by the CFS between 1998 and 2020 that concerned post-disturbance ecology. We focused on research addressing natural or anthropogenic disturbances, such as wildfires, pest outbreaks, windthrows, forest management, seismic lines, and those that studied processes related to soil, vegetation, fauna, hydrology, and microbial communities. We found that forest harvesting was the disturbance most studied by CFS between 1998 and 2020, followed by fire. Despite the fact that large, forested areas are affected annually by pests, studies on recovery after pest outbreaks were scarce. Other disturbances, such as mining and seismic lines or other abiotic disturbances were rare in CFS literature. Most studies (70%) examined changes in vegetation related to forest management and fire and they were mainly focussed on post-disturbance tree regeneration success. Post-disturbance changes in understory species diversity were also well-studied. Our results provide a geographic overview of CFS research on post-disturbance recovery in Canada and enable the identification of key knowledge gaps. Notably, research focusing on recovery after natural disturbances was underrepresented in the assessed literature compared to studies centered around harvesting. Long-term research sites, chronosequences that substitute space for time, and studies focused on consecutive disturbances are especially important to maintain and establish sustainable forest management strategies in the face of climate change. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
172. Impact of green manure and weeds on selected soil health indicators in an organic grain cropping system in Nova Scotia.
- Author
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McNeil, Morgan O., Lynch, Derek H., Alam, Mohammed Z., Mills, Aaron, and Marshall, Carolyn B.
- Subjects
GREEN manure crops ,ORGANIC farming ,CROPPING systems ,SOILS ,WEEDS ,CROP rotation - Abstract
The green manure residual effect on soil health 2 years later in crop rotation is understudied. Little is known about weed biomass impact on soil microbial communities or their interactions. A Colchester County, NS, Canada, organic grain research trial during 2016-2017 comprised 2 or 3-year rotations with or without green manure crop prior to wheat, and then soybeans. Fall soil sampling was conducted both years. The soybean phase of the crop rotation was managed as weedy or non-weedy. Weedy soil showed significantly increased soil respiratory activity and fungal microbial biomass. Green manure treatments did not significantly influence soil health indicators. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
173. The physiological state of four commercially important bivalve species during a naturally occurring heatwave.
- Author
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Talevi, Jasmine, Steeves, Laura, Coffin, Michael, Guyondet, Thomas, Sakamaki, Takashi, Comeau, Luc, and Filgueira, Ramón
- Subjects
MYA arenaria ,HEAT waves (Meteorology) ,BIVALVES ,NORTHERN quahog ,MARINE heatwaves ,AMERICAN oyster - Abstract
Shallow coastal environments are becoming more susceptible to marine heatwaves, particularly in Atlantic Canada, which is experiencing higher rates of ocean warming compared with the global average. Understanding bivalves' tolerance to heatwaves in Atlantic Canada is especially important, given the magnitude of bivalve aquaculture in this region. In this study, the physiological state of four commercially important bivalve species—blue mussel (Mytilus edulis Linnaeus, 1758), eastern oyster (Crassostrea virginica (Gmelin, 1791)), soft shell clam (Mya arenaria Linnaeus, 1758), and hard clam (Mercenaria mercenaria (Linnaeus, 1758))—was observed during a naturally occurring heatwave in Prince Edward Island, Canada. The metabolism, feeding physiology, and scope for growth of each species were compared. Results from this study, and comparisons with the literature, show interspecific variability in the metabolic rate and feeding physiology between species, but generally oysters, soft shell clams, and hard clams were less impacted during the heatwave compared with the blue mussels. Additionally, only the scope for growth of mussels declined throughout this experiment, which may be explained by cumulative heat stress, as temperatures experienced during this heatwave exceeded the thermal tolerance limits of mussels. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
174. Towards a management strategy for microplastic pollution in the Laurentian Great Lakes—ecological risk assessment and management (part 2).
- Author
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Hataley, Eden K., McIlwraith, Hayley K., Roy, Dimple, and Rochman, Chelsea M.
- Subjects
ECOLOGICAL risk assessment ,POLLUTION ,WATER quality ,LAKES ,WATERSHEDS ,SEDIMENT sampling - Abstract
Over the past decade, plastic pollution has been documented throughout the Laurentian Great Lakes basin. Here, we demonstrate the application of a published ecological risk assessment and management framework for microplastics in aquatic environments by comparing proposed thresholds for risk to monitoring data from the Great Lakes region. Our results suggest that there may be measurable risks from microplastics to aquatic communities in parts of the Great Lakes where current concentrations are relatively high. For example, 89% of surface water samples collected across the region exceed the proposed risk thresholds for food dilution toxicity. However, all sediment samples remain below the proposed risk thresholds. Accordingly, we suggest that an appropriate and necessary next step for management may include convening a working group of local experts to develop an ecological risk assessment and management framework for the region comprising thresholds of concern for microplastics in surface water and sediment. Ultimately, microplastic pollution should be addressed in the Great Lakes Water Quality Agreement to ensure coordinated and sustained efforts are taken by the governments of Canada and the United States to reduce their release and impact. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
175. Is scientific inquiry still incompatible with government information control? A quarter-century later.
- Author
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Godwin, Sean C., Bateman, Andrew W., Mordecai, Gideon, Jones, Sean, and Hutchings, Jeffrey A.
- Subjects
SCIENTIFIC method ,GOVERNMENT information ,INFORMATION resources management ,SALMON farming ,MARINE resources ,FISHERY management - Abstract
Twenty-six years ago, in response to regionally devastating fisheries collapses in Canada, Hutchings et al. asked "Is scientific inquiry incompatible with government information control?" Now, a quarter-century later, we review how government science advice continues to be influenced by non-science interests, particularly those with a financial stake in the outcome of the advice. We use the example of salmon aquaculture in British Columbia, Canada, to demonstrate how science advice from Fisheries and Oceans Canada (DFO) can fail to be impartial, evidence-based, transparent, and independently reviewed—four widely implemented standards of robust science advice. Consequently, DFO's policies are not always supported by the best available science. These observations are particularly important in the context of DFO having struggled to sustainably manage Canada's marine resources, creating socio-economic uncertainty and putting the country's international reputation at risk as it lags behind its peers. We conclude by reiterating Hutchings et al.'s unheeded recommendation for a truly independent fisheries-science advisory body in Canada to be enshrined in the decision-making process. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
176. Managing Canadian freshwater fisheries: persistent challenges and emerging opportunities.
- Author
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Howarth, Andrew, Nguyen, Vivian M., and Cooke, Steven J.
- Subjects
FISHERIES ,FRESH water ,FRESHWATER biodiversity ,PROBLEM solving ,GEOGRAPHY - Abstract
Freshwater fisheries and biodiversity have substantial economic, socio-cultural, and ecological value, but face severe and mounting anthropogenic threats. Canada's freshwater fisheries are not exempt from this, and provide excellent opportunities to better understand these overlooked and undervalued systems. Using expert and chain-referral sampling, we surveyed practitioners from across Canada about the management of freshwater fisheries. We used a mixed methods approach to identify and describe in detail many important aspects of the above processes, including 10 persistent and innate challenges in (1) bureaucratic sprawl, (2) lack of priority, (3) scope, (4) competing interests, (5) political inconstancy, (6) socio-ecological complexity, (7) limited tools, (8) geographies and scale, (9) reactivity, and (10) intersectoral frictions. Many of these challenges defy conventional problem solving (e.g., advocacy, basic science), leading to chronic incapacity and triage management in some freshwater fisheries. We highlight opportunities to increase management capacity, using innovation where conventional solutions fall short (e.g., using novel technologies to increase management scope). Achieving sustainability in Canadian freshwater fisheries will require ingenuity and supportive contributions beyond those that currently exist. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
177. Reply to the comment by K.M. Aggarwal on "Collision strength and effective collision strength for Ba XLVIII".
- Author
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Mohan, Man, Goyal, Arun, and Khatri, Indu
- Subjects
- CANADA
- Abstract
Copyright of Canadian Journal of Physics is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2020
- Full Text
- View/download PDF
178. Reply to the discussion by N. Eyles and A. Mohajer on "Analysis and reinterpretation of deformation features in the Rouge River valley, Scarborough, Ontario".
- Author
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Godin, Laurent, Brown, Richard L, Dreimanis, Aleksis, Atkinson, Gail M, and Armstrong, Derek K
- Subjects
VALLEYS ,GLACIERS ,GEOLOGIC faults ,NEOTECTONICS - Abstract
Presents a reply to a comment on the study "Analysis and Reinterpretation of Deformation Features in the Rouge River Valley, Scarborough, Ontario," by N. Eyles and A. Mohajer. Structural analysis of deformation features in relation to local ice flow directions; Interpretation of drumilinoid features; Compatibility of the faults with neotectonic-related or glacial tectonic-related processes.
- Published
- 2003
- Full Text
- View/download PDF
179. Effect of Thompson River elevation on velocity and instability of Ripley Slide.
- Author
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Hendry, Michael T., Macciotta, Renato, Martin, C. Derek, and Reich, Benjamin
- Subjects
LANDSLIDES ,SLOPE stability ,RAILROADS ,GEOTECHNICAL engineering ,PORE water pressure ,GROUNDWATER flow ,CLAY - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2015
- Full Text
- View/download PDF
180. Fish diversity and biomass in northern Canadian lakes: northern lakes are more diverse and have greater biomass than expected based on species-energy theory.
- Author
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Samarasin, Pasan, Minns, Charles K., Shuter, Brian J., Tonn, William M., Rennie, Michael D., and Ramcharan, Charles
- Subjects
FISH diversity ,BIOMASS ,CLASSIFICATION of fish ,AQUATIC biodiversity ,FISH & climate ,RESOURCE exploitation ,LAKES - Abstract
Copyright of Canadian Journal of Fisheries & Aquatic Sciences is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2015
- Full Text
- View/download PDF
181. Late Wisconsinan stratigraphy and chronology of southern St. George's Bay, Newfoundland: a re-appraisal: Reply.
- Author
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Bell, Trevor, Liverman, David G.E, Batterson, Martin J, and Sheppard, Kevin
- Subjects
EVENT stratigraphy ,EARTH sciences ,PERIODICALS ,GEOLOGY - Abstract
Presents a reply to the comment given by I. Brookes to the article "Late Wisconsinan stratigraphy and chronology of southern St. George's Bay, Newfoundland: a re-appraisal," by Trevor Bell, David G.E. Liverman, Martin J. Batterson and Kevin Sheppard, which appeared in the 2001 issue of the 'Canadian Journal of Earth Sciences." Disagreements in field observations and interpretations; Discussion of a complex sedimentary sequences of interbedded diamicton, gravel and mud above the basal till; Discounting the significance of a date given to a diamicton at Highlands.
- Published
- 2002
- Full Text
- View/download PDF
182. Effects of natural resource development on the terrestrial biodiversity of Canadian boreal forests1.
- Author
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Venier, L.A., Thompson, I.D., Fleming, R., Malcolm, J., Aubin, I., Trofymow, J.A., Langor, D., Sturrock, R., Patry, C., Outerbridge, R.O., Holmes, S.B., Haeussler, S., De Grandpré, L., Chen, H.Y.H., Bayne, E., Arsenault, A., and Brandt, J.P.
- Subjects
FOREST management ,TAIGAS ,PLANT growth ,HABITATS ,NATURAL resources - Abstract
Copyright of Environmental Reviews is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2014
- Full Text
- View/download PDF
183. Linking gender, climate change, adaptive capacity, and forest-based communities in Canada.
- Author
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Reed, Maureen G., Scott, Alyssa, Natcher, David, and Johnston, Mark
- Subjects
CLIMATE change research ,COMMUNITIES ,FOREST ecology ,CLIMATE change mitigation ,SOCIAL planning - Abstract
Copyright of Canadian Journal of Forest Research is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2014
- Full Text
- View/download PDF
184. Assessing the impact of renewal scenarios on the global structural state of sewer pipe networks.
- Author
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Duchesne, Sophie, Bouchard, Kassandra, Toumbou, Babacar, and Villeneuve, Jean-Pierre
- Subjects
SEWER pipes ,SEWERAGE ,SIMULATION methods & models ,RUNOFF ,SURVIVAL analysis (Biometry) ,SEWAGE ,MATHEMATICAL models ,CONCRETE construction deterioration - Abstract
Copyright of Canadian Journal of Civil Engineering is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2014
- Full Text
- View/download PDF
185. Environmental controls of the northern distribution limit of yellow birch in eastern Canada.
- Author
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Drobyshev, Igor, Guitard, Marc-Antoine, Asselin, Hugo, Genries, Aurélie, and Bergeron, Yves
- Subjects
PHYSICAL distribution of goods ,ENVIRONMENTAL engineering ,YELLOW birch ,BIOCLIMATOLOGY - Abstract
Copyright of Canadian Journal of Forest Research is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2014
- Full Text
- View/download PDF
186. How do natural disturbances and human activities affect soils and tree nutrition and growth in the Canadian boreal forest?1.
- Author
-
Maynard, D.G., Paré, D., Thiffault, E., Lafleur, B., Hogg, K.E., and Kishchuk, B.
- Subjects
PLANT nutrition ,PLANT growth ,META-analysis ,NITROGEN in soils ,PHOSPHORUS in soils ,ECOLOGICAL disturbances - Abstract
Copyright of Environmental Reviews is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2014
- Full Text
- View/download PDF
187. FREE GEOSPATIAL DATA AND QUALITY: IMPLICATIONS FOR USERS, CONTRIBUTORS AND DISTRIBUTORS.
- Author
-
de Rijcke, Izaak and Mills, Megan
- Subjects
- *
GEOSPATIAL data , *DATA quality , *COMMON law , *INTANGIBLE property , *TWENTY-first century ,CANADIAN politics & government - Abstract
Geospatial data is widely available and used by a broad range of users for a wide range of purposes-from government planning for service delivery to directions on how to get to a coffee shop. What, if any, duties and standards of care are owed to users of geospatial data by the provider? This is a question complicated by a growing trend toward volunteer geographic information (or VGI) that is itself part of the broader trend of user generated content whereby the users of data contribute geographic data and create a wide range of value-added products based on available data. This paper is a companion piece to the article authored by Katherine Plante and Marc Gervais entitled "Geospatial Data Quality Guarantee."2 Plante and Gervais provide an overview of geospatial data quality guarantees in the legal context of the Quebec Civil Code. This paper, in contrast, looks at similar concepts, but from the perspective of the common law in Canada and drawing at times from other common law jurisdictions. [ABSTRACT FROM AUTHOR]
- Published
- 2015
- Full Text
- View/download PDF
188. Impacts and prognosis of natural resource development on water and wetlands in Canada's boreal zone1.
- Author
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Webster, Kara L., Beall, Frederick D., Creed, Irena F., and Kreutzweiser, David P.
- Subjects
- *
WETLANDS , *BIOMES , *NATURAL resources , *WATER - Abstract
Industrial development within Canada's boreal zone has increased in recent decades. Forest management activities, pulp and paper operations, electric power generation, mining, conventional oil and gas extraction, nonconventional oil sand development, and peat mining occur throughout the boreal zone with varying impacts on water resources. We review impacts of these industries on surface water, groundwater, and wetlands recognizing that heterogeneity in the dominance of different hydrologic processes (i.e., precipitation, evapotranspiration, groundwater recharge, and runoff generation) across the boreal zone influences the degree of impacts on water resources. Through the application of best management practices, forest certification programs, and science-based guidelines, timber, pulp and paper, and peat industries have reduced their impacts on water resources, although uncertainties remain about long-term recovery following disturbance. Hydroelectric power developments have moved toward reducing reservoir size and creating more natural flow regimes, although impacts of aging infrastructure and dam decommissioning is largely unknown. Mineral and metal mining industries have improved regulation and practices, but the legacy of abandoned mines across the boreal zone still presents an ongoing risk to water resources. Oil and gas industries, including non-conventional resources such as oil sands, is one of the largest industrial users of water and, while significant progress has been made in reducing water use, more work is needed to ensure the protection of water resources. All industries contribute to atmospheric deposition of pollutants that may eventually be released to downstream waters. Although most industrial sectors strive to improve their environmental performance with regards to water resources, disruptions to natural flow regimes and risks of degraded water quality exist at local to regional scales in the boreal zone. Addressing the emerging challenge of managing the expanding, intensifying, and cumulative effects of industries in conjunction with other stressors, such as climate change and atmospheric pollution, across the landscape will aid in preserving Canada's rich endowment of water resources. [ABSTRACT FROM AUTHOR]
- Published
- 2015
- Full Text
- View/download PDF
189. Ground motions selection and scaling for nonlinear dynamic analysis of structures located in Eastern North America.
- Author
-
Michaud, Dominic and Léger, Pierre
- Subjects
NONLINEAR dynamical systems ,CONSTRUCTION laws ,EARTHQUAKE hazard analysis ,DEGREES of freedom ,STEEL framing ,MEAN square algorithms ,TIME-domain analysis - Abstract
Copyright of Canadian Journal of Civil Engineering is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2014
- Full Text
- View/download PDF
190. Investigation on use of recycled asphalt shingles in Ontario hot mix asphalt: a Canadian case study.
- Author
-
Yang, Jun, Ddamba, Shirley, UL-Islam, Riyad, Safiuddin, Md., and Tighe, Susan L.
- Subjects
WASTE recycling ,BITUMINOUS materials ,ASPHALT ,CONSTRUCTION materials ,PERFORMANCE standards ,STRAINS & stresses (Mechanics) - Abstract
Copyright of Canadian Journal of Civil Engineering is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2014
- Full Text
- View/download PDF
191. Trichomycetes associated with insects in lotic habitats (streams) within the Halifax Regional Municipality, Nova Scotia, Canada1.
- Author
-
William, R.T. and Strongman, D.B.
- Subjects
TRICHOMYCETES ,RIVER ecology ,AQUATIC insects ,SYMBIOSIS ,HARPELLALES - Abstract
Copyright of Botany is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2013
- Full Text
- View/download PDF
192. Introduction to Fundamental and Applied Research on Permafrost in Canada.
- Subjects
PERMAFROST ,SOILS - Abstract
An introduction is presented in which the editor discusses various papers within the issue on permafrost, soil or rock that remains at or below zero degree for 2 or more years in Canada.
- Published
- 2012
- Full Text
- View/download PDF
193. EDITORIAL / ÉDITORIAL.
- Author
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Peterson, R Larry
- Subjects
CONFERENCES & conventions ,MYCORRHIZAS ,LITERATURE ,PLANT roots ,SYMBIOSIS ,AGRICULTURE - Abstract
This article presents information about the articles published in the August 1, 2004 issue of the journal "Canadian Journal of Botany." This issue is a collection of invited, peer-reviewed symposium papers from the 4th International Conference on Mycorrhizae held in Montreal, Quebec, in August 2003.
- Published
- 2004
- Full Text
- View/download PDF
194. Short-term response of soil aggregate stability and labile carbon to contour tillage, diversion terrace, grassed waterway, and tile drainage implementation.
- Author
-
Driscoll, Bryan A., Krzica, Maja, Comeau, Louis-Pierre, Eskelson, Bianca N. I., and Sheng Li
- Subjects
SOIL structure ,TILLAGE ,SOIL degradation ,DRAINAGE ,SOIL stabilization - Abstract
Soil degradation has been of great concern for New Brunswick's potato farmers, especially on sloped land and shallow soils. In this study, we evaluated the initial response of labile soil carbon (C) fractions (permanganate oxidizable C (POXC) and particulate organic C (POC)) and aggregate stability to two integrated best management practices (BMPIs) composed of the following individual practices: diversion terraces (DT), grassed waterways (GW), and contour tillage (CT) (i.e., DTGW) and DT, GW, CT, and tile drainage (TD) (i.e., DTGW + TD), relative to CT that served as a control. The more water was regulated in the field, the greater the increase in labile C; where DTGW and DTGW + TD gained 19.8% and 50.6% of POXC, respectively, while CT lost 11.2% of POXC. There was an increase in mineral associated organic matter C in the terraced BMPIs, despite the high amount of tillage events that took place during potato cultivation. Two BMPIs had no effect on aggregate stability, most likely due to the short duration of this initial monitoring study that spanned just over two growing seasons. Even though there were no improvements in soil structure, our findings showed that some stabilization of soil C is possible even during the initial two seasons following BMPI implementation. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
195. Instructions to Authors.
- Subjects
MICROBIOLOGY ,BIOLOGY ,PERIODICALS - Abstract
Presents information on submitting manuscripts to "Canadian Journal of Microbiology."
- Published
- 2002
- Full Text
- View/download PDF
196. THE DUTY TO CONSULT AND ACCOMMODATE ABORIGINAL PEOPLES: A PRIMER FOR ONTARIO SURVEYORS WORKING IN RESOURCES DEVELOPMENT.
- Author
-
Townshend, H. W. Roger and McClurg, Michael
- Subjects
- *
ABORIGINAL Canadians , *LEGAL status of indigenous peoples , *INDIGENOUS rights , *MINES & mineral resources , *MINING law , *SURVEYING (Engineering) - Abstract
Aboriginal law has developed to require Aboriginal peoples to be "consulted and accommodated" if their rights may be impacted by a government decision, including a government permit or approval of a project of a private proponent. For example, hunting rights often exist throughout a First Nation's treaty or traditional territory (i.e. far beyond the limits of reserves), and the duty to consult and accommodate can be triggered by mining and other resource development. Contrary to the common understanding of some of those unfamiliar with this area of law, this duty applies not only to activities undertaken under federal authorization, but also to those under provincial authorization. The Crown's "duty to consult and accommodate" Aboriginal peoples has become a central theme in the discussion of natural resource development in Canada. In response to various decisions of Canadian courts, the Government of Ontario significantly overhauled its Mining Act in 2009 to provide for some consultation with Aboriginal communities. Those changes came in to effect in the spring of 2013. This paper will describe the constitutional duty to consult as it has been described and elaborated on by courts in Canada and some of the implications it has for resource extraction in Ontario. It will then undertake a case study discussing Ontario's attempt to respond to its duty to consult by amending the Mining Act regime. Finally, the paper will consider the flaws in the Mining Act and the reasons that exploration companies and surveyors working for them should be prudent and pro-active when undertaking intrusive activities in the traditional territories of Aboriginal peoples. [ABSTRACT FROM AUTHOR]
- Published
- 2014
- Full Text
- View/download PDF
197. RECENT BOUNDARY LAW CASES.
- Author
-
de Rijcke, Izaak
- Subjects
- *
BOUNDARY disputes , *BOUNDARY laws , *REAL property , *LAND titles , *INLAND navigation laws , *LAND tenure , *ACTIONS & defenses (Law) - Abstract
In this paper, recent boundary cases are considered-but especially as related to Ontario. The choice of jurisdiction is a consequence of the original audience for whom the paper was prepared: real estate lawyers in Ontario. While the activity of case law review and discussion may be seen as an ad hoc and fact-specific exercise, most lawyers in practice choose to remain aware of recent cases in order to stay abreast of new trends. Law schools still use the case law method for teaching-as well as to identify current reported cases as harbingers of potential new trends. Likewise, legislators monitor what emerges from our courts-if only to make sure that there is not a need for remedial legislation in order to possibly "correct" policy implications of a decision or a series of decisions which signal a new trend. Despite its jurisdictional limitations and the review of only most recent cases, this paper is both an example and a reminder that the jurisprudence of boundary law and the work of geomatics professionals continues to evolve. [ABSTRACT FROM AUTHOR]
- Published
- 2014
- Full Text
- View/download PDF
198. Symposium overview. Dietary Reference Intakes: considerations for physical activity.
- Author
-
Whiting, Susan J.
- Subjects
ELEMENTAL diet ,NUTRITIONAL requirements ,DIETARY supplements ,PHYSICAL fitness ,CONFERENCES & conventions ,NUTRITION - Abstract
Copyright of Applied Physiology, Nutrition & Metabolism is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2006
- Full Text
- View/download PDF
199. Assessment of seismic vulnerability of typical Quebec city bridges considering the site-specific amplification effects.
- Author
-
Galy, Bertrand, Khaled, Amar, and Nollet, Marie-José
- Subjects
EFFECT of earthquakes on bridges ,DUCTILITY ,STRATIGRAPHIC geology ,CONSTRUCTION laws ,SOIL profiles ,ACCELEROGRAMS ,ENERGY dissipation - Abstract
Copyright of Canadian Journal of Civil Engineering is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2013
- Full Text
- View/download PDF
200. Increasing the quality of life from womb to grave: the importance of pregnancy and birth cohorts.
- Author
-
Kaplan, Bonnie J., Leung, Brenda M., Giesbrecht, Gerald F., Field, Catherine J., Bernier, Francois P., Tough, Suzanne, Xinjie Cui, and Dewey, Deborah
- Subjects
CHILDREN'S health ,EXPERIMENTAL design ,GENE expression ,LONGITUDINAL method ,MOTHERS ,ENVIRONMENTAL exposure ,FETAL development ,SOCIAL history - Abstract
Copyright of Applied Physiology, Nutrition & Metabolism is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2013
- Full Text
- View/download PDF
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