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  1. No Access

    Living Reference Work Entry In depth

    Hero Label: Distortion and Propaganda

    D. Parkinson, W. Leonard, S. O’Malley in Encyclopedia of Heroism Studies

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    Article

    Lesbian and Bisexual Women’s Experience of Emergency Management

    As climate change exacerbates exposure to disasters, a growing body of scholarship provides evidence that some groups experience significant barriers in accessing and participating in emergency services. This ...

    D. Parkinson, Alyssa Duncan, William Leonard, Frank Archer in Gender Issues (2022)

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    Article

    Earthworm invasions of ecosystems devoid of earthworms: effects on soil microbes

    Recent studies document North American earthworm invasions and their profound effects on the structure of the soil profile, which is the habitat for soil microorganisms (mainly fungi and bacteria). Dramatic al...

    M. A. McLean, S. Migge-Kleian, D. Parkinson in Biological Invasions (2006)

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    Chapter

    Earthworm invasions of ecosystems devoid of earthworms: effects on soil microbes

    Recent studies document North American earthworm invasions and their profound effects on the structure of the soil profile, which is the habitat for soil microorganisms (mainly fungi and bacteria). Dramatic al...

    M. A. McLean, S. Migge-Kleian, D. Parkinson in Biological Invasions Belowground: Earthwor… (2006)

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    Chapter and Conference Paper

    Application of HPC to medium-size stochastic systems with non-linear constraints in finance

    This paper presents results of multi-stage numerical optimisation of medium sized financial portfolios using High Performance Computing. Linear and non-linear constraints are applied and the optimisation proce...

    G. S. Hodgson, P. Dzwig, H. M. Liddell in High-Performance Computing and Networking (1998)

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    Article

    Successional changes in microbial biomass, respiration and nutrient status during litter decomposition in an aspen and pine forest

    Microbial biomass, microbial respiration, metabolic quotient (qCO2), Cmic/Corg ratio and nutrient status of the microflora was investigated in different layers of an aspen (Populus tremuloides Michx.) and pine fo...

    S. Scheu, D. Parkinson in Biology and Fertility of Soils (1995)

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    Article

    Interspecific competitive interactions between pairs of fungal species in natural substrates

    The role of interspecific competition in fungal communities in natural substrates is poorly understood because fungi do not form easily definable populations. A new approach to investigating fungal competition...

    D. A. Wardle, D. Parkinson, J. E. Waller in Oecologia (1993)

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    Article

    Immobilization and availability of N and P in the forest floors of fertilized Rocky Mountain coniferous forests

    The rates of key processes related to the recycling of nutrients in the forest floor were monitored for four years following the application of ammonium phosphate sulphate to small plots in mature stands of lo...

    C. E. Prescott, J. P. Corbin, D. Parkinson in Plant and Soil (1992)

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    Article

    Relative importance of the effect of 2,4-D, glyphosate, and environmental variables on the soil microbial biomass

    Two post-emergence herbicides (glyphosate and 2,4-D) were applied at field application levels to tilled field plots in a mixed crop** area in south-central Alberta. The effects of these chemicals on certain ...

    D. A. Wardle, D. Parkinson in Plant and Soil (1991)

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    Article

    Interactions between microclimatic variables and the soil microbial biomass

    Soil moisture, temperature, microbial substrate-induced respiration and basal respiration were monitored in two plots in an agricultural field from April 30 to September 25, 1987, and in a further two plots fr...

    D. A. Wardle, D. Parkinson in Biology and Fertility of Soils (1990)

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    Article

    Influence of the herbicide glyphosate on soil microbial community structure

    The side effects of glyphosate on the soil microflora were monitored by applying a range of glyphosate concentrations (0, 2, 20, and 200 μg g−1 herbicide) to incubated soil samples, and following changes in vario...

    D. A. Wardle, D. Parkinson in Plant and Soil (1990)

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    Article

    Effects of three herbicides on soil microbial biomass and activity

    Three post-emergence herbicides (2,4-D, picloram and glyphosate) were applied to samples of an Alberta agricultural soil at concentrations of 0, 2, 20, and 200 μg g−1. The effects of these chemicals on certain mi...

    D. A. Wardle, D. Parkinson in Plant and Soil (1990)

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    Chapter and Conference Paper

    Super Parallel Algorithms

    Serial algorithmic design concentrates on how to solve a single instance of a given task on a single processor. The natural extension for parallel processing usually concentrates on how to solve the given sing...

    D. Parkinson in Supercomputing (1989)

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    Article

    Evidence for a nicotinic component to the actions of acetylcholine in cat visual cortex

    Radioligand binding assays, receptor autoradiography and iontophoresis have been used to look for evidence of a nicotinic component to the actions of acetylcholine in cat visual cortex. [3H]Nicotine bound to a un...

    D. Parkinson, K. E. Kratz, N. W. Daw in Experimental Brain Research (1988)

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    Chapter

    Rhizosphere interactions with special reference to vesicular-arbuscular mycorrhizae

    A brief review is presented of the positive and negative effects of several types of interaction between VA mycorrhizae and other groups of organisms found in the root regions of various plants. Interactions b...

    D. Parkinson in World crops: Cool season food legumes (1988)

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    Chapter

    Carotid cavernous fistula. History and anatomy

    The parasellar compartment commonly known as the “cavernous sinus” contains a more compact complexity of gross anatomy than any other structure, a veritable anatomic jewel box. The orbit, a much larger cavity,...

    D. Parkinson in The Cavernous Sinus (1987)

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    Article

    Monitoring the impact of acid deposition on the soil microbiota, using glucose and vanillin decomposition

    Samples of organic (F/H) and mineral soil (to approximately 8 cm depth) were collected from three ‘ecologically analogous’ sites in a boreal forest at intervals of 2.8 km (site 1), 6.0 km (site 2) and 9.6 km (...

    R. J. F. Bewley, D. Parkinson in Water, Air, and Soil Pollution (1986)

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    Article

    Computers: More parallel than others

    D. Parkinson in Nature (1985)

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    Article

    Topsoil storage effects on primary production and rates of vesicular-arbuscular mycorrhizal development inAgropyron trachycaulum

    A greenhouse study was conducted to determine the effects of stockpiling prairie grassland topsoil for 3 years on mycorrhizal development and root and shoot production of slender wheatgrass. The vesicular-arbu...

    S. Visser, C. L. Griffiths, D. Parkinson in Plant and Soil (1984)

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    Article

    Effect of topsoil storage on microbial activity, primary production and decomposition potential

    The effects of disturbing (cultivating) and stockpiling prairie grassland topsoil on microbial activity, microbial biomass C, plant production and decomposition potentials were studied by measuring CO2 efflux fro...

    S. Visser, J. Fujikawa, C. L. Griffiths, D. Parkinson in Plant and Soil (1984)

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