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Articles 241 - 270 of 25232
Full-Text Articles in Entire DC Network
Uap 2645: Accounting For Labor Expenses, University Of New Mexico
Uap 2645: Accounting For Labor Expenses, University Of New Mexico
Section 2000: Administrative Management
No abstract provided.
Balancing The Conservation Of Wildlife Habitat With Road Access For Subsistence Hunting In Yakutat, Alaska, Colin S. Shanley
Balancing The Conservation Of Wildlife Habitat With Road Access For Subsistence Hunting In Yakutat, Alaska, Colin S. Shanley
Biological Sciences
"This thesis was an interdisciplinary investigation with the goal of balancing the conservation of wildlife habitat with road access for subsistence hunting in Yakutat, Alaska. The problem posed by land managers and subsistence moose hunters revolved around the use of off-highway vehicles (OHVs; e.g. 'four-wheelers') for subsistence moose hunting and the potential disturbance OHVs have on moose. This complex social-ecological problem is becoming an increasingly common management dilemma faced by rural mixed cash-subsistence communities across the Circumpolar North. I addressed this problem in two chapters with a combination of methods from wildlife ecology, landscape modeling, subsistence land-use, and scenario planning. …
King Eider Migration And Seasonal Interactions At The Individual Level, Steffen Oppel
King Eider Migration And Seasonal Interactions At The Individual Level, Steffen Oppel
Biological Sciences
Seasonal interactions describe how events during one season of the annual cycle of a migratory bird affect its fitness in subsequent seasons. Understanding the strength and mechanism of seasonal interactions is important to predict how migratory birds will respond to future challenges caused by habitat loss and climate change. This dissertation explores seasonal interactions between different stages of the annual cycle in an arctic-breeding sea duck, the King Eider (Somateria spectabilis). Concerns over recent population declines and potential effects of climate change on marine habitats used by the species highlight the need for a better understanding of its life history. …
Patterns Of Genetic Variation Among Various Beringian Birds, Elizabeth Marella Humphries
Patterns Of Genetic Variation Among Various Beringian Birds, Elizabeth Marella Humphries
Biological Sciences
Every animal has two different sets of genes, the mitochondrial genome and the nuclear genome. They are inherited independently of each other and can have dissimilar evolutionary histories. For this thesis, I examined the correlation of the mitochondrial (using direct sequencing of mitochondrial DNA) and nuclear (using a fragment-based technique, AFLPs) evolutionary histories in Beringian birds. The first study looked at relationships among a within-Beringia radiation of birds, the Aethia auklets. I was able to infer a resolved phylogeny using mitochondrial DNA, but found a polytomy using nuclear DNA. The lack of correlation between the genomes is either the result …
Latitudinal Patterns Of Amino Acid Cycling And Plant N Uptake Among North American Forest Ecosystems, Jack W. Mcfarland
Latitudinal Patterns Of Amino Acid Cycling And Plant N Uptake Among North American Forest Ecosystems, Jack W. Mcfarland
Biological Sciences
Interest in the role of organic nitrogen (N) to the N economy of forest ecosystems is gaining momentum as ecologists revise the traditional paradigm in N cycling to emphasize the importance of depolymerization of soil organic matter (SOM) in controlling the bioavailability of N in forest soils. Still, there has yet to be a coordinated effort aimed at developing general patterns for soil organic N cycling across ecosystems that vary in climate, SOM quality, plant taxa, or dominant mycorrhizal association: ectomycorrhizae (EM) vs. arbuscular mycorrhizae (AM). In this study, experimental additions of 13C15N-glycine and 15NH4+ were traced in situ through …
Community, Population, And Growth Dynamics Of Alnus Tenuifolia: Implications For Nutrient Cycling On An Interior Alaskan Floodplain, Dana Rachel Nossov
Community, Population, And Growth Dynamics Of Alnus Tenuifolia: Implications For Nutrient Cycling On An Interior Alaskan Floodplain, Dana Rachel Nossov
Biological Sciences
This study describes the community, population, and growth dynamics of Alnus tenuifolia (thinleaf alder) and implications for nutrient cycling on the Tanana River floodplains. Through symbiotic N-fixation inputs, alder contributed to soil N accumulation with time. N-fixation itself was likely limited by soil P. Soil N was positively related to alder stem density in early successional stands. Community structure varied along a temporal gradient of changing environmental characteristics, but variations in successional patterns were found. Landscape scale alder recruitment varied temporally and was apparently linked to interactions between geofluvial processes, seed production and dispersal, and herbivory. A widespread stem canker …
Ontology Generation, Information Harvesting And Semantic Annotation For Machine-Generated Web Pages, Cui Tao
Ontology Generation, Information Harvesting And Semantic Annotation For Machine-Generated Web Pages, Cui Tao
Theses and Dissertations
The current World Wide Web is a web of pages. Users have to guess possible keywords that might lead through search engines to the pages that contain information of interest and browse hundreds or even thousands of the returned pages in order to obtain what they want. This frustrating problem motivates an approach to turn the web of pages into a web of knowledge, so that web users can query the information of interest directly. This dissertation provides a step in this direction and a way to partially overcome the challenges. Specifically, this dissertation shows how to turn machine-generated web …
Characterization Of The Thermal Transport Through A Temporally-Varying Ash Layer, Darron Palmer Cundick
Characterization Of The Thermal Transport Through A Temporally-Varying Ash Layer, Darron Palmer Cundick
Theses and Dissertations
Ash deposits in commercial coal-fired boilers frequently pose serious maintenance challenges and decrease thermal efficiency. A better understanding of fundamental thermal transport properties in ash deposits can help mitigate their negative effects. In order to characterize the thermal properties of boiler-side deposits, this work presents a thermal transport model and in-situ measurements of effective thermal conductivity in coal ash deposits. A simple model of the thermal transport through an ash deposit, with and with out slagging, was developed. The model approximates the deposit by dividing it into four regimes: particulate, sintered, solidified slag, and molten slag. The development of this …
Measurement Of Rheological And Thermal Properties And The Freeze-Thaw Characteristics Of Nanofluids, Bhaskar C. Sahoo
Measurement Of Rheological And Thermal Properties And The Freeze-Thaw Characteristics Of Nanofluids, Bhaskar C. Sahoo
Engineering
"This research investigates the rheological and thermal properties and the freeze-thaw characteristics of nanofluids. Nanofluids are dispersions of nano-scale particles (<100 nm) in a base fluid such as water, ethylene glycol, propylene glycol or a mixture of more than one fluid. In cold regions, a mixture of 60% ethylene glycol in water by mass (60:40 EG/W) is normally used as the heat transfer fluid due to its low freezing point. Rheological properties of aluminum oxide nanofluid in the 60:40 EG/W base fluid were investigated and new correlations, expressing viscosity as a function of temperature and particle concentration, were developed. Results from the specific heat experiments on zinc oxide nanofluid in the 60:40 EG/W were compared with available correlations and a new model was developed. The thermal conductivity of silicon dioxide nanofluid in a 60:40 EG/W was measured and compared with existing models, considering the Brownian motion of nanoparticles. A new correlation, expressing thermal conductivity as a function of particle concentration, size, base fluid properties and temperature, was proposed by improving an existing model. Freeze-thaw characteristics of copper oxide nanoparticle dispersions in water were studied for a single freeze-thaw cycle. The freezing rate, agglomeration of nanoparticles and the effect on the freezing point of nanofluid were examined"--Leaf iii
Comparative And Sensitivity Study Of The Effects Of Flow Parameters On Pressure Drop In Vertical Tubing, George Kaetochi Elekwachi
Comparative And Sensitivity Study Of The Effects Of Flow Parameters On Pressure Drop In Vertical Tubing, George Kaetochi Elekwachi
Engineering
"Two-phase gas-liquid flow occurs in vertical pipes during the production of reservoir fluids. The two most common flow patterns that are observed during oil production are the Bubble and Slug flows. Determination of pressure drop in two-phase flow is more complicated than single-phase flow because two fluids with different densities flow in the tubing at different velocities. Using two multiphase correlations (Hagedorn and Brown, and Duns and Ros), the effect of fluid properties variation at different flow conditions on pressure drop were studied. Fluid data developed with correlations and West Sak fluid data were used for the analysis. Plots showing …
Determination Of Minimum Miscibility Pressure Using Vanishing Interfacial Tension In Support Of Alaska North Slope Heavy Oil Development, Vinit Santosh Tathed
Determination Of Minimum Miscibility Pressure Using Vanishing Interfacial Tension In Support Of Alaska North Slope Heavy Oil Development, Vinit Santosh Tathed
Engineering
"Developing Alaskan heavy oils resources has become necessary as, the production from light oil fields in Alaska's North Slope (ANS) is on the decline. Due to the extremely viscous nature of these heavy oils, they are hard to produce by natural pressure. Miscible gas injection Enhanced Oil Recovery (EOR) can be one of the methods for production of these heavy oils. Minimum miscibility pressure (MMP) is an important optimization parameter for EOR processes involving CO₂ or hydrocarbon gas injection. The MMP for a gas-oil system is directly related to the interfacial tension between the injected gas and the reservoir crude …
Synthesis, Structure And Magnetic Properties Of Oxy-Anion Based Magnetic Solids Containing Transition Metal Oxide Nanostructures, Kulugammana Gedera Ranmohotti
Synthesis, Structure And Magnetic Properties Of Oxy-Anion Based Magnetic Solids Containing Transition Metal Oxide Nanostructures, Kulugammana Gedera Ranmohotti
All Dissertations
Inline with the focus of our research, my goal for this dissertation study is to further explore new classes of magnetic insulators exhibiting novel properties. The scope of this work is twofold: 1) the exploratory synthesis of polyanion-based mixed-framework compounds containing transition metal oxide magnetic nanostructures, and 2) the investigation of the structure/property correlation with respect to the spin couplings in confined lattices. These studies are of fundamental and technological importance regarding the long-term development of low-dimensional magnetic solids for device applications in especially information storage and quantum computing. Several interesting and significant transition metal based silicate, phosphate arsenate and …
Surface Energy Balance And Melt Thresholds Over 11 Years At Taylor Glacier, Antarctica, Matthew James Hoffman, Andrew G. Fountain, Glen E. Liston
Surface Energy Balance And Melt Thresholds Over 11 Years At Taylor Glacier, Antarctica, Matthew James Hoffman, Andrew G. Fountain, Glen E. Liston
Geography Faculty Publications and Presentations
In the McMurdo Dry Valleys, Victoria Land, Antarctica, melting of glacial ice is the primary source of water to streams, lakes, and associated ecosystems. To understand geochemical fluxes and ecological responses to past and future climates requires a physically based energy balance model. We applied a one-dimensional model to one site on Taylor Glacier using 11 years of daily meteorological data and seasonal ablation measurements. Inclusion of transmission of solar radiation into the ice was necessary to accurately model summer ablation and ice temperatures. Results showed good correspondence between calculated and measured ablation and ice temperatures over the 11 years. …
Analysis And Interpretation Of Volcano Deformation In Alaska: Studies From Okmok And Mt. Veniaminof Volcanoes, Thomas J. Fournier
Analysis And Interpretation Of Volcano Deformation In Alaska: Studies From Okmok And Mt. Veniaminof Volcanoes, Thomas J. Fournier
Geosciences
Four studies focus on the deformation at Okmok Volcano, the Alaska Peninsula and Mt. Veniaminof. The main focus of the thesis is the volcano deformation at Okmok Volcano and Mt. Veniaminof, but also includes an investigation of the tectonic related compression of the Alaska Peninsula. The complete data set of GPS observations at Okmok Volcano are investigated with the Unscented Kalman Filter time series analysis method. The technique is shown to be useful for inverting geodetic data for time dependent non-linear model parameters. The GPS record at Okmok from 2000 to mid 2007 shows distinct inflation pulses which have several …
Geologic Setting Of The Central Alaskan Hot Springs Belt: Implications For Geothermal Resource Capacity And Sustainable Energy Production, Amanda M. Kolker
Geologic Setting Of The Central Alaskan Hot Springs Belt: Implications For Geothermal Resource Capacity And Sustainable Energy Production, Amanda M. Kolker
Geosciences
The Central Alaskan Hot Springs Belt (CAHSB) is a vast stretch of low-temperature hydrothermal systems that has the potential to be a geothermal energy resource for remote communities in Alaska. Little exploration has occurred in the CAHSB and the resource is poorly understood. A geothermal power plant was installed in 2006 at Chena Hot Springs (CHS), one of the 30-plus hot springs in the CAHSB. This, in addition to the multiple direct use projects at CHS, could serve as a model for geothermal development elsewhere in the CAHSB. This dissertation evaluates the geologic setting of the CAHSB and explores the …
Male Circumcision As An Hiv Prevention Strategy In Sub-Saharan Africa: Socio-Legal Barriers, Lawrence O. Gostin
Male Circumcision As An Hiv Prevention Strategy In Sub-Saharan Africa: Socio-Legal Barriers, Lawrence O. Gostin
O'Neill Institute Papers
UNAIDS and WHO recommend safe, voluntary male circumcision as an additional, important strategy for the prevention of heterosexually-acquired HIV in men in areas with high HIV prevalence and low levels of male circumcision. Comprehensive male circumcision services should include HIV testing and counseling, partner reduction, and male and female condom use. Yet, male circumcision can have deep symbolic meaning that could pose barriers to implementation. In some parts of the world, it is a traditional practice with religious or cultural significance, in others it is a common hygiene intervention, and in yet others it is unfamiliar or foreign. Consequently, the …
President’S Emergency Plan For Aids Relief: Health Development At The Crossroads, Lawrence O. Gostin
President’S Emergency Plan For Aids Relief: Health Development At The Crossroads, Lawrence O. Gostin
O'Neill Institute Papers
The President’s Emergency Plan for AIDS Relief (PEPFAR) was the largest commitment by any nation to combat a single disease in human history, authorizing up to $15 billion over 5 years. On July 30, 2008, President Bush signed into law the historic reauthorization of PEPFAR, dramatically increasing the financial commitment by authorizing up to $48 billion over 5 years, including $5 billion for Malaria and $4 billion for Tuberculosis. PEPFAR’s global targets are inspiring: treat 3 million people; prevent 12 million new HIV infections, and care for 12 million people, including 5 million orphans and vulnerable children. But, PEPFAR has …
Bjorgung V. Whitetail Resort
2008 Decisions
USDC for the Middle District of Pennsylvania
Storey Constr., Inc. V. Hanks Clerk's Record V. 3 Dckt. 35459
Storey Constr., Inc. V. Hanks Clerk's Record V. 3 Dckt. 35459
Idaho Supreme Court Records & Briefs, All
No abstract provided.
Storey Constr., Inc. V. Hanks Clerk's Record V. 2 Dckt. 35459
Storey Constr., Inc. V. Hanks Clerk's Record V. 2 Dckt. 35459
Idaho Supreme Court Records & Briefs, All
No abstract provided.
City Of Boise V. Ada County Appellant's Brief Dckt. 35432
City Of Boise V. Ada County Appellant's Brief Dckt. 35432
Idaho Supreme Court Records & Briefs, All
No abstract provided.
Storey Constr., Inc. V. Hanks Clerk's Record V. 1 Dckt. 35459
Storey Constr., Inc. V. Hanks Clerk's Record V. 1 Dckt. 35459
Idaho Supreme Court Records & Briefs, All
No abstract provided.
Triad Leasing & Financial V. Rocky Mountain Rogues Clerk's Record V. 1 Dckt. 35659
Triad Leasing & Financial V. Rocky Mountain Rogues Clerk's Record V. 1 Dckt. 35659
Idaho Supreme Court Records & Briefs, All
No abstract provided.
The Alestle - Vol. 61 No. 32 - 12/16/2008, Southern Illinois University Edwardsville
The Alestle - Vol. 61 No. 32 - 12/16/2008, Southern Illinois University Edwardsville
The Alestle
Vol. 61 No. 32
Assessment Of Omega-3 Fatty Acid Food Intakes And Their Association With Socioeconomic Status And Acculturation In Midwestern Latinas, Karina R. Lora
Assessment Of Omega-3 Fatty Acid Food Intakes And Their Association With Socioeconomic Status And Acculturation In Midwestern Latinas, Karina R. Lora
College of Education and Human Sciences: Dissertations, Theses, and Student Research
The purpose of this study was to assess the validity and reliability of a culturally appropriate food frequency questionnaire (FFQ) to measure total omega-3 (n-3) fatty acid, ALA, EPA and DHA intakes of Midwestern Latinas. In addition, the study examined the association of age, socioeconomic status (SES) and acculturation with intake of n-3 fatty acids. The n-3 FFQ was developed from preliminary interviews, analyzed for content validity and pilot tested. The final instrument containing 209 items (15 culturally-specific dishes) was tested with 162 first-generation Latinas. One-on-one interviews in Spanish were conducted to validate the FFQ. In addition, women provided sociodemographic …
Meeting Transcript Of The Federal Open Market Committee On December 15-16, 2008, Federal Reserve System: Board Of Governors: Federal Open Market Committee (Fomc)
Meeting Transcript Of The Federal Open Market Committee On December 15-16, 2008, Federal Reserve System: Board Of Governors: Federal Open Market Committee (Fomc)
Documents
No abstract provided.
Integrated Approach To Airborne Laser Communication, James A. Louthain
Integrated Approach To Airborne Laser Communication, James A. Louthain
Theses and Dissertations
Lasers offer tremendous advantages over RF communication systems in bandwidth and security, due to their ultra-high frequency and narrow spatial beamwidth. Atmospheric turbulence causes severe received power variations and high bit error rates (BERs) in airborne laser communication. Airborne optical communication systems require special considerations in size, complexity, power, and weight. Conventional adaptive optics systems correct for the phase only and cannot correct for strong scintillation, but here the two transmission paths are separated sufficiently so that the strong scintillation is \averaged out" by incoherently summing up the two beams in the receiver. This requisite separation distance is derived for …
Under Secretary For International Affairs David H. Mccormick Remarks, David Mccormick
Under Secretary For International Affairs David H. Mccormick Remarks, David Mccormick
Documents
No abstract provided.
The Bg News December 16, 2008, Bowling Green State University
The Bg News December 16, 2008, Bowling Green State University
BG News (Student Newspaper)
The BGSU campus student newspaper. December 16, 2008. Volume 99-Issue 74.