Browsing Faculty of Science by Title
Now showing items 1562-1581 of 2571
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Nanoindentation Study of the Surface of Ion-Exchanged Lithium Silicate Glass
(American Chemical Society, 2016-02-25)Variations in mechanical properties (stiffness and hardness) were measured as a function of case depth in ion-exchange glasses using nanoindentation. A simple silicate composition, 30Li2O–70Si2O, was exchanged (Li+ ↔ K+) ... -
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Nanostructured CdS prepared on porous silicon substrate: Structure, electronic, and optical properties
(2002-05)No abstract available. -
Narwhal co-management in Nunavut: Deepened collaboration needed to improve partnership, process and outcome
(2012-09-20)Since the ratification of the Nunavut Land Claims Agreement (NLCA) in 1993, narwhal harvesting in Nunavut has been governed by a formalized co-management regime. The Nunavut Wildlife Management Board, a body created under ... -
Natalie Rosen CV
(2013-08-07) -
Natural emissions of chlorine-containing gases: Reactive Chlorine Emissions Inventory
(1999-04)Although there are many chlorine-containing trace gases in the atmosphere, only those with atmospheric lifetimes of 2 years or fewer appear to have significant natural sources. The most abundant of these gases are methyl ... -
Natural Selection, Variation, Adaptation, and Evolution: a Primer of Interrelated Concepts
(2010-11)Natural selection is an elegantly simple concept but one that can manifest in complex ways. I review how the basic model of single-trait viability selection has been extended to more complex forms of selection on multiple ... -
Nature Appropriation and Associations with Population Health in Canada's Largest Cities
(2013-04)Earth is a finite system with a limited supply of resources. As the human population grows, so does the appropriation of Earth's natural capital, thereby exacerbating environmental concerns such as biodiversity loss, ... -
The nature of a gravitationally lensed sub-millimetre arc in MS0451.6-0305: two interacting galaxies at z~2.9?
(2004-08-11)We present a new SCUBA image of the cluster MS0451.6-0305, which exhibits strong, extended sub-mm flux at 850 microns. The most striking feature in the map is an elongated region of bright sub-mm emission, with a flux ... -
The nature of ammonium ion disorder in ammonium tetrafluoroaluminate, NH4AlF4.
(1985)To clarify previous conflicting reports concerning the existence of an order-disorder phase transition in NH4AlF4 at T ?150 K, the heat capacity of this compd. was measured from T = 15 to 305 K, by adiabatic calorimetry. ... -
The nature of the bright submillimeter galaxy population: a radio pre-selected sample with I>25
(2001-2-20)Deep submillimetre surveys have successfully detected distant, star-forming galaxies, enshrouded in vast quantities of dust and which emit most of their energy at far infrared wavelengths. These luminous galaxies are an ... -
Near-IR adaptive optics imaging of nuclear spiral structure in the Seyfert galaxy, NGC3227
(2002-04-04)We present high spatial resolution, near-IR images in J, H, K of the nucleus of NGC3227, obtained with the Adaptive Optics bonnette on CFHT. The ~0.15 arcsec (17pc) resolution allows structures to be probed in the core ... -
Needs and Wants: What Is Social Progress and How Should It Be Measured?
(Institute for Research on Public Policy; Centre for the Study of Living Standards, 2001)No abstract available. -
Negative electron-electron drag between narrow quantum Hall channels
(APS through AIP, 1998-03/15)Momentum transfer due to Coulomb interaction between two parallel, two-dimensional, narrow, and spatially separated layers, when a current Idrive is driven through one layer, is studied in the presence of a perpendicular ... -
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Neutron-Scattering Spectra from the Hindered Rotation of Methane in Methane + Krypton Mixtures Adsorbed on Graphite
(1985)No abstract available. -
New algorithms for MODIS sun-induced chlorophyll fluorescence and a comparison with present data products
(2005-02)We discuss important sources of variability in sun-induced chlorophyll fluorescence and examine difficulties in deriving fluorescence data products from satellite imagery, with a focus on the MODerate-resolution Imaging ...