Browsing Faculty of Science by Title
Now showing items 1773-1792 of 2590
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"Pock Marks" in Nearshore Sands: Observations During Sandyduck97.
(2000-04-15)Previous bedform research has described different ripple types forming in varying hydrodynamic conditions and used ripple geometry within sedimentary rocks to infer the paleoenvironmental conditions during the ripple ... -
Polar Bear Diets and Arctic Marine Food Webs: Insights from Fatty Acid Analysis
(2008-11)We used quantitative fatty acid signature analysis (QFASA) to examine the diets of 1738 individual polar bears (Ursus maritimus) sampled across the Canadian Arctic over a 30-year span. Polar bear foraging varied over ... -
The Polar Invasion: An Examination of Canadian Policy Perspectives Associated with Arctic Governance
(2014-02-17)The effects of climate change on Arctic sea ice have created unprecedented international interest in accessing the Northwest Passage as a cost efficient alternative for shipping between the Pacific and Atlantic Oceans. ... -
Policy and Behaviour: Exploring Energy Use by Computers in the Marion McCain Building
(2008-04)In an era of increasing concern about environmental integrity and stability, all sectors of society including individuals, institutions, industry and government are re-examining their relationship with the environment. ... -
Pollen limitation of plant reproduction: Ecological and evolutionary causes and consequences
(2004-09)Determining whether seed production is pollen limited has been an area of intensive empirical study over the last two decades. Yet current evidence does not allow satisfactory assessment of the causes or consequences of ... -
A Pollen-Stratigraphic Study of Late-Quaternary Vegetational Change at Porter's Lake, Nova Scotia, with Reference to Marine Intrusion
(1986-04-15)Late-Quaternary sea level rise has caused two marine intrusions into Porter's Lake, Nova Scotia (Smith 1984), resulting in an interesting ecological history. Stratigraphic studies of the lake include work on diatoms and ... -
Polyaniline Electrode Activation in Li Cells
(The Electrochemical Society, 2020-04-17)Polyaniline (PANi) can be used as an electroactive organic cathode material in Li-cells with multiple redox states. The theoretical specific capacity of the emeraldine base (PEB) is 150 mAh g−1. In this study, we show how ... -
Polynomials Related to Expansions of Certain Rational Functions in 2 Variables
(1988-03)No abstract available. -
Polytropic model fits to the globular cluster NGC 2419 in Modified Newtonian Dynamics
(2011-10-18)We present an analysis of the globular cluster NGC 2419, using a polytropic model in Modified Newtonian Dynamics (MOND) to reproduce recently published high quality data of the structure and kinematics of the system. We ... -
A population of hot, dusty ultra-luminous galaxies at z~2
(2004-10-20)We report spectroscopic redshifts for 18 microJy-radio galaxies at mean redshift of z=2.2 that are faint at both submmillimeter (submm) and optical wavelengths. While the radio fluxes of these galaxies could indicate ... -
A Population of z > 2 Far-Infrared Herschel-Spire-selected Starbursts
(2012-12)No abstract available. -
Population Structure as Revealed by mtDNA and Microsatellites in Northern Fur Seals, Callorhinus ursinus, throughout Their Range
(2010-05)Background: The northern fur seal (Callorhinus ursinus; NFS) is a widely distributed pinniped that has been shown to exhibit a high degree of philopatry to islands, breeding areas on an island, and even to specific ... -
Population-specific gene expression responses to hybridization between farm and wild Atlantic salmon
(2009-11)Because of intrinsic differences in their genetic architectures, wild populations invaded by domesticated individuals could experience population-specific consequences following introgression by genetic material of ... -
Positive Darwinian Selection in the Piston That Powers Proton Pumps in Complex I of the Mitochondria of Pacific Salmon
(2011-09)The mechanism of oxidative phosphorylation is well understood, but evolution of the proteins involved is not. We combined phylogenetic, genomic, and structural biology analyses to examine the evolution of twelve mitochondrial ... -
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Post-Pleistocene Sea Level Changes in the Baie Verte Estuary (Northumberland Strait) as Revealed by Foraminiferal Studies
(1980-03-15)Two cores were obtained from the Baie Verte estuary of the Northumberland Strait to study relative sea level changes by examination of foraminiferal distributions. The base of the cores contained a layer of salt marsh ...