Browsing Faculty of Science by Title
Now showing items 1616-1635 of 2573
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Obscured and unobscured active galactic nuclei in the Spitzer Space Telescope First Look Survey
(2004-09)Selection of active galactic nuclei (AGN) in the infrared allows the discovery of AGN whose optical emission is extinguished by dust. In this paper, we use the Spitzer Space Telescope First Look Survey (FLS) to assess what ... -
Observation of a blue shift in the optical response at the fundamental band gap in Ga1-xMnxAs
(2012-01)No abstract available. -
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An Observational Study of the Energy-Transfer between the Seasonal Mean Flow and Transient Eddies
(1991-03)The large-scale energetics of the Northern Hemisphere atmospheric motions are computed in the frequency domain using a 5-year data set from the ECMWF operational analyses. The geographical distributions of kinetic energy ... -
Observations on a mixed farm during the transition to biological husbandry
(2011-01-19)Tunwath is a mixed farm (laying hens-grains) located in the Annapolis Valley, Nova Scotia, in a cool humid temperate zone. It includes about 2100 laying hens, 35 hectares of field crops and additional garden, pasture, hay ... -
Observer Effects and Avian-Call-Count Survey Quality: Rare-Species Biases and Overconfidence
(2012-01)Wildlife monitoring surveys are prone to nondetection errors and false positives. To determine factors that affect the incidence of these errors, we built an Internet-based survey that simulated avian point counts, and ... -
Observing Cold Gas in Submillimeter Galaxies: Detection of CO(1-0) Emission in SMM J13120+4242 with the Green Bank Telescope
(2006-10-20)We report the first detection of CO(1-0) emission from a submillimeter-selected galaxy, using the Green Bank Telescope. We identify the line in the spectrum of SMM J13120+4242 as a broad emission feature at z=3.408, with ... -
Occurrence and Origin of Garnet in the South Mountain Batholith
(1980-03-15)Garnet occurs around the margin of the South Mountain batholith as an accessory mineral in three distinct comagmatic phases. Electron microprobe analyses and textural relationships of 50 garnet-biotite pairs indicates that ... -
Ocean Fertilization Science, Policy, and Commerce
(2009-09)Over the past 20 years there has been growing interest in the concept of fertilizing the ocean with iron to abate global warming. This interest was catalyzed by basic scientific experiments showing that iron limits primary ... -
Ocean-atmosphere exchange of methyl bromide: NW Atlantic and Pacific Ocean studies
(1998-07)Measurements of methyl bromide partial pressure and concentration in surface water and air samples in the NW Atlantic Ocean in July 1995 and the Pacific Ocean in October 1995 are presented, Mean atmospheric mixing ratios ... -
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Offshore Oil and Gas Development in Nunavut: Policy Challenges and Lessons from Atlantic Canada
(2015-03-03)Increasing international interest in the extraction of hydrocarbon resources in the Arctic hasprecipitated renewed incentives for the exploration of offshore oil and gas resources in Nunavut. Canada has offshore development ... -
Offshore oil and natural gas
(Atlantic Geoscience Society, 1992-05)This documentary looks at the petroleum exploration industry off Canada's east coast in the early 1990s. It covers the geology of hydrocarbon formation in sedimentary rocks, the extraction of petroleum, supply chain safety, ... -
OH, HO2, and NO in two biomass burning plumes: Sources of HOx and implications for ozone production
(1997-12)No abstract available. -
Old Growth among Us: A Characterization of Urban Old-Growth Forests in Halifax
(2015-04)Currently, there is little research in the field of urban old-growth forests. This study aims to address this issue, furthering our knowledge of urban old-growth in Nova Scotia. The research focuses on identifying ... -
On Developing and Implementing an Effective Approach to Coastal Management in Nova Scotia. Volume 1, Issue 2
(Marine Affairs Program, 2008-05-01) -
On the accretion origin of a vast extended stellar disk around the Andromeda galaxy
(2005-11-20)We present the discovery of an inhomogenous, low-surface brightness, extended disk-like structure around the Andromeda galaxy (M31) based on a large kinematic survey of more than 2800 stars with the Keck/DEIMOS spectrograph. ... -
On the application of cavity ringdown spectroscopy to measurements of line shapes and continuum absorption
(2002)No abstract available.