Search Results - "Muir, D G"

Climate and permafrost effects on the chemistry and ecosystems of High Arctic Lakes by Roberts, K. E., Lamoureux, S. F., Kyser, T. K., Muir, D. C. G., Lafrenière, M. J., Iqaluk, D., Pieńkowski, A. J., Normandeau, A.

“…Permafrost exerts an important control over hydrological processes in Arctic landscapes and lakes. Recent warming and summer precipitation has the potential to…”
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Drivers of Mercury Cycling in the Rapidly Changing Glacierized Watershed of the High Arctic’s Largest Lake by Volume (Lake Hazen, Nunavut, Canada) by St. Pierre, K. A, St. Louis, V. L, Lehnherr, I, Gardner, A. S, Serbu, J. A, Mortimer, C. A, Muir, D. C. G, Wiklund, J. A, Lemire, D, Szostek, L, Talbot, C

“…Across the Arctic, glaciers are melting and permafrost is thawing at unprecedented rates, releasing not only water to downstream aquatic systems, but also…”
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Laboratory evaluation of the toxicity of perfluorooctane sulfonate (PFOS) on Selenastrum capricornutum, Chlorella vulgaris, Lemna gibba, Daphnia magna, and Daphnia pulicaria by BOUDREAU, T. M, SIBLEY, P. K, MABURY, S. A, MUIR, D. G. C, SOLOMON, K. R

“…Perfluorooctane sulfonate (PFOS) is an anthropogenic compound found in trace amounts in many environmental compartments far from areas of production. This,…”
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Spatial and Temporal Trends in Short-Chain Chlorinated Paraffins in Lake Ontario Sediments by Marvin, C. H, Painter, S, Tomy, G. T, Stern, G. A, Braekevelt, E, Muir, D. C. G

“…Short-chain chlorinated paraffins (polychlorinated-[C10−C13]-n-alkanes) were measured in Lake Ontario sediments collected during a lake-wide survey to…”
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Trifluoroacetate Profiles in the Arctic, Atlantic, and Pacific Oceans by Scott, B. F, Macdonald, R. W, Kannan, K, Fisk, A, Witter, A, Yamashita, N, Durham, L, Spencer, C, Muir, D. C. G

“…A series of depth profiles was collected at 22 sites in the Arctic, North and South Atlantic, and Pacific Oceans to determine spatial patterns for…”
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Spatial Trends and Historical Deposition of Mercury in Eastern and Northern Canada Inferred from Lake Sediment Cores by Muir, D.C.G, Wang, X, Yang, F, Nguyen, N, Jackson, T. A, Evans, M. S, Douglas, M, Köck, G, Lamoureux, S, Pienitz, R, Smol, J. P, Vincent, W. F, Dastoor, A

“…Recent and historical deposition of mercury (Hg) was examined over a broad geographic area from southwestern Northwest Territories to Labrador and from the…”
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Basal mercury concentrations and biomagnification rates in freshwater and marine food webs: Effects on Arctic charr (Salvelinus alpinus) from eastern Canada by van der Velden, S., Dempson, J.B., Evans, M.S., Muir, D.C.G., Power, M.

“…Patterns of total Hg (THg) and methyl Hg (MeHg) biomagnification were investigated in six pairs of co-located lacustrine and marine food webs supporting a…”
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Nitrogen uptake dynamics of a persistent cyanobacterium Cyanothece sp. bloom in Lake St Lucia, South Africa by du Plooy, SJ, Smit, AJ, Perissinotto, R, Muir, DG

“…Worldwide, persistent cyanobacterial blooms are becoming more frequent and are often associated with effects of global climate change. In June 2009, a…”
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Occurrence of C10−C13 Polychlorinated n-Alkanes in Canadian Midlatitude and Arctic Lake Sediments by Tomy, G. T, Stern, G. A, Lockhart, W. L, Muir, D. C. G

“…Sediment cores from six lakes in Canada ranging from 49°N to 81°N were analyzed for C10−C13 polychlorinated n-alkanes (PCAs) with the intent of (i) examining…”
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Acute intermittent hypoxia enhances regeneration of surgically repaired peripheral nerves in a manner akin to electrical stimulation by Nadeau, J.R., Arnold, B.M., Johnston, J.M., Muir, G.D., Verge, V.M.K.

“…The intrinsic repair response of injured peripheral neurons is enhanced by brief electrical stimulation (ES) at time of surgical repair, resulting in improved…”
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Spatial and Temporal Variation of Polycyclic Aromatic Hydrocarbons in the Arctic Atmosphere by Halsall, C. J, Barrie, L. A, Fellin, P, Muir, D. C. G, Billeck, B. N, Lockhart, L, Rovinsky, F. Ya, Kononov, E. Ya, Pastukhov, B

“…In the first multi-year arctic air sampling program, PAHs were sampled (vapor and particulate) every week at three locations in the Canadian and Russian…”
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Complete locomotor recovery following corticospinal tract lesions: measurement of ground reaction forces during overground locomotion in rats by Muir, Gillian D, Whishaw, Ian Q

“…The corticospinal tract is a prominent descending pathway in rodents which is thought to be involved in motor control. The purpose of this study was to…”
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Measuring environmental stress in East Greenland polar bears, 1892–1927 and 1988–2009: What does hair cortisol tell us? by Bechshøft, T.Ø., Rigét, F.F., Sonne, C., Letcher, R.J., Muir, D.C.G., Novak, M.A., Henchey, E., Meyer, J.S., Eulaers, I., Jaspers, V.L.B., Eens, M., Covaci, A., Dietz, R.

“…Hair sampled from 96 East Greenland polar bears (Ursus maritimus) over the periods 1892–1927 and 1988–2009 was analyzed for cortisol as a proxy to investigate…”
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Posthatching Locomotor Experience Alters Locomotor Development in Chicks by Muir, G. D, Chu, T. K

“…Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5B4, Canada Muir, G. D. and T. K. Chu…”
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Ground reaction forces in locomoting hemi-parkinsonian rats : a definitive test for impairments and compensations by MUIR, G. D, WHISHAW, I. Q

“…Hemi-parkinsonian rats have preserved postural reflexes but are impaired in initiation of voluntary movements. Surprisingly, these rats can walk and run,…”
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Risk ranking of multiple-POPs in detritivorous fish from the Río de la Plata by Colombo, J.C., Cappelletti, N., Williamson, M., Migoya, M.C., Speranza, E., Sericano, J., Muir, D.C.G.

“…► The diet energy optimization of detritus feeding fish leads to efficient bioaccumulation of POPs. ► Risk ranking of multiple POPs was evaluated based on…”
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Comparative analysis of total mercury concentrations in anadromous and non-anadromous Arctic charr (Salvelinus alpinus) from eastern Canada by van der Velden, S., Evans, M.S., Dempson, J.B., Muir, D.C.G., Power, M.

“…Previous research has documented that total mercury concentrations ([THg]) are lower in anadromous Arctic charr than in non-anadromous conspecifics, but the…”
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Conservation and Variation in Human and Common Chimpanzee CD94 and NKG2 Genes by Shum, Benny P, Flodin, Laura R, Muir, David G, Rajalingam, Raja, Khakoo, Salim I, Cleland, Sophia, Guethlein, Lisbeth A, Uhrberg, Markus, Parham, Peter

“…To assess polymorphism and variation in human and chimpanzee NK complex genes, we determined the coding-region sequences for CD94 and NKG2A, C, D, E, and F…”
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Associations between complex OHC mixtures and thyroid and cortisol hormone levels in East Greenland polar bears by Bechshøft, T.Ø., Sonne, C., Dietz, R., Born, E.W., Muir, D.C.G., Letcher, R.J., Novak, M.A., Henchey, E., Meyer, J.S., Jenssen, B.M., Villanger, G.D.

“…The multivariate relationship between hair cortisol, whole blood thyroid hormones, and the complex mixtures of organohalogen contaminant (OHC) levels measured…”
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MAST's Integrated Data Access Management system: IDAM by Muir, D.G., Appel, L., Conway, N.J., Kirk, A., Martin, R., Meyer, H., Storrs, J., Taylor, D., Thomas-Davies, N., Waterhouse, J.

“…A new Integrated Data Access Management system, IDAM, has been created to address specific data management issues of the MAST spherical Tokamak. For example,…”
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