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2012

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Buchanan Explores The City's History Through The Fading Ads Of Birmingham, Tyler Greer Dec 2012

Buchanan Explores The City's History Through The Fading Ads Of Birmingham, Tyler Greer

Browse All News

No abstract provided.

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The Role Of Customer Engagement In Innovation Adoption, Scott A. Skiple Dec 2012

The Role Of Customer Engagement In Innovation Adoption, Scott A. Skiple

Theses and Dissertations

Full knowledge of a customer's true unmet need should improve the likelihood of providing that customer with an Option that meets the need. Since there is inherent risk in making any change, that customer will be more likely to accept the risk they more they understand the option. Both the customer and the solution provider possess knowledge that the other needs, knowledge which is often highly contextual and difficult to transfer, and thus a sufficiently close relationship between the customer and the solution provider should improve this knowledge transfer. It is, however, exceedingly difficult to measure this relationship, or the …

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Transient Spatiotemporal Chaos In A Morris-Lecar Neuronal Ring Network Collapses To Either The Rest State Or A Traveling Pulse, Keegan Keplinger Dec 2012

Transient Spatiotemporal Chaos In A Morris-Lecar Neuronal Ring Network Collapses To Either The Rest State Or A Traveling Pulse, Keegan Keplinger

Physics

Transient spatiotemporal dynamics exists in an electrically coupled Morris-Lecar neuronal ring network, a theoretical model of an axo-axonic gap junction network. The lifetime of spatiotemporal chaos was found to grow exponentially with network size. Transient dynamics regularly collapses from a chaotic state to either the resting potential or a traveling pulse, indicating the existence of a chaotic saddle. For special conditions, a chaotic attractor can arise in the Morris-Lecar network to which transient chaos can collapse. The short-term outcome of a Morris-Lecar ring network is determined as a function of perturbation configuration. Perturbing small clusters of nearby neurons in the …

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Arctic Fox Winter Movement And Diet In Relation To Industrial Development On Alaska's North Slope, Neil S. Lehner Dec 2012

Arctic Fox Winter Movement And Diet In Relation To Industrial Development On Alaska's North Slope, Neil S. Lehner

Biological Sciences

I examined winter movement and diet of Arctic foxes (Vulpes lagopus) in the Prudhoe Bay oilfields and an adjacent undeveloped area (National Petroleum Reserve-Alaska (NPR-A)). Movement metrics were compared between these areas using data from satellite collars. Daily travel rate was approximately 5 times greater in the undeveloped area than in Prudhoe Bay. Four adult foxes collared in NPR-A used the sea ice for extensive time periods. One of these foxes traveled 338 km in three days while another traveled to Banks Island (Northwest Territories, Canada), over 1050 km from its capture location. Prudhoe Bay foxes did not make these …

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Acclimation And Migration Potential Of A Boreal Forest Tree, Balsam Poplar (Populus Balsamifera L.) In A Changing Climate, Amanda L. Robertson Dec 2012

Acclimation And Migration Potential Of A Boreal Forest Tree, Balsam Poplar (Populus Balsamifera L.) In A Changing Climate, Amanda L. Robertson

Biological Sciences

In the North American boreal forest, 21st century climate change is projected to result in longer growing seasons, increased forest productivity, and northward expansions or shifts in species ranges. These projected impacts are largely based on observations across natural temperature gradients, e.g., latitude or altitude, or correlations between current species' distributions and modern climate envelopes. These approaches, although valuable, do not consider biological capacities important in a species' ability to cope with novel environments through physiological or phenological acclimation. Within a single species, adaptation to local environments may cause some populations to respond differently to climate change than others. Acclimation …

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Developing A Decision Support System For Emergency Management Services In The Fairbanks North Star Borough, Alaska, Katherine E. Schaefer Dec 2012

Developing A Decision Support System For Emergency Management Services In The Fairbanks North Star Borough, Alaska, Katherine E. Schaefer

Geosciences

Every year the Fairbanks North Star Borough (FNSB), in interior Alaska, responds to common emergencies, as well as disasters of varying types. This research first tested several geographic information systems (GIS) based network analysis models to demonstrate how these models could serve as 'decision support' tools for emergency planning and response. Six network analysis models based on FNSB data were evaluated to determine the response times of local fire stations. Each model was tested against real call times and simulated summertime fire emergency response call times to verify model accuracy. The simulated times matched the modeled predictions with remarkably high …

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Applicability Of Synthetic Aperture Radar For Investigating River Breakup On The Kuparuk River, Northern Alaska, Angelica L. Floyd Dec 2012

Applicability Of Synthetic Aperture Radar For Investigating River Breakup On The Kuparuk River, Northern Alaska, Angelica L. Floyd

Geosciences

A combined use of remote sensing techniques and field measurements is a pragmatic approach to study Arctic hydrology, given the vastness, complexity, and logistical challenges posed by most Arctic watersheds. This study investigates the use of synthetic aperture radar (SAR) to define spring breakup of the Kuparuk River on the North Slope of Alaska. A time series (years 2001-2010) of SAR images was assembled at the river mouth on the Arctic Coastal Plain. A statistical analysis was used and was limited to three variables: image brightness, variance in brightness over the river length, and a rank order analysis accomplished by …

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Evaluating Dust Palliative Performance And Longevity Using The Uaf-Dustm, Travis Warren Eckhoff Dec 2012

Evaluating Dust Palliative Performance And Longevity Using The Uaf-Dustm, Travis Warren Eckhoff

Engineering

Fugitive dust emissions from gravel surfaces such as unpaved roads and airport runways are a major source of particulate matter pollution in the environment. Fugitive dust emissions impact community health, decrease visibility and contribute to surface degradation. Chemical additives, also known as dust palliatives, are often used to reduce these dust emissions. Although these products have been widely used, little is known about their effectiveness and longevity. There is currently no standard test method to quantify the reduction in fugitive dust emissions provided by dust palliatives. The UAF-DUSTM was developed to provide a consistent test method for determining the effectiveness …

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Characterizing The Berthing Load Environment Of The Seattle Ferry Teminal, Bremerton Slip, Jason E. Kwiatkowski Dec 2012

Characterizing The Berthing Load Environment Of The Seattle Ferry Teminal, Bremerton Slip, Jason E. Kwiatkowski

Engineering

This manuscript characterizes and presents design recommendations for berthing demands on ferry landing structures. There is a lack of research focused on the berthing load demand imparted by ferry class vessels, therefore the load criteria used for design is often based on a number of assumptions. This study involved a one-year field study of the structural load environment of wingwalls at the Bremerton Slip of the Seattle Ferry Terminal, located in Elliott Bay adjacent to Seattle, Washington. Measurements of marine fender displacement, vessel approach distance with respect to time, and. pile strain were used to determine berthing demands. Berthing event …

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The Impact Of A Fluctuating Freezing Front On Ice Formation In Freezing Soil, Matthew Ryan Dillon Dec 2012

The Impact Of A Fluctuating Freezing Front On Ice Formation In Freezing Soil, Matthew Ryan Dillon

Engineering

Frost heave is typically associated with the formation of segregation ice in fine-grained soil. Coarse-grained soil is generally considered to be non-frost susceptible. Field observa-tions and laboratory experiments show that coarse-grained soil can be extremely ice-rich in specific conditions. Previous studies have shown that oscillation of the frozen-unfrozen boundary can lead to the formation of ice by a mechanism different from the segregation ice mechanism. Conditions related to the formation of ice in coarse-grained soil were in-vestigated using modern laboratory techniques. Fourteen tests were conducted on five soil types. The thickness of soil subjected to freeze-thaw cycles was varied and …

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Gardner-Webb University Awards Over 300 Degrees In Fall Commencement Ceremony, Office Of University Communications Dec 2012

Gardner-Webb University Awards Over 300 Degrees In Fall Commencement Ceremony, Office Of University Communications

Gardner-Webb NewsCenter Archive

Hundreds of supporters gathered at the Lutz-Yelton Convocation Center on Monday to celebrate the accomplishments of over 300 students as part of the fall commencement ceremony. The University also awarded three honorary doctorates to Randy Marion, Harvey Rogers, and Jack Hunt. The ceremony for 311 graduates featured commencement speeches by Elisabeth Ann Edmonson of Mooresboro, N.C. (Master of Divinity in Christian Education) and Gary Hudson Smith, IV of Aiken, S.C. (Bachelor of Science in Business Administration). Melinda Lauren McNeely of Charlotte, N.C. (Bachelor of Arts in Missiology) offered the traditional scripture reading.

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Light-Induced States In Attosecond Transient Absorption Spectra Of Laser-Dressed Helium, Shaohao Chen, M. Justine Bell, Annelise R. Beck, Hiroki Mashiko, Mengxi Wu, Adrian N. Pfeiffer, Mette B. Gaarde, Daniel M. Neumark, Stephen R. Leone, Kenneth J. Schafer Dec 2012

Light-Induced States In Attosecond Transient Absorption Spectra Of Laser-Dressed Helium, Shaohao Chen, M. Justine Bell, Annelise R. Beck, Hiroki Mashiko, Mengxi Wu, Adrian N. Pfeiffer, Mette B. Gaarde, Daniel M. Neumark, Stephen R. Leone, Kenneth J. Schafer

Faculty Publications

Laser-dressed absorption in atomic helium is studied, both theoretically and experimentally, by transient absorption spectroscopy using isolated 400-as pulses centered at 22 eV and 12-fs near-infrared (NIR) pulses with 780-nm central wavelength. Multiple features in the helium singly excited bound-state spectrum are observed only when the NIR and attosecond pulses are overlapped in time. Theoretical analysis indicates that these light-induced structures (LISs) are the intermediate states in resonant, second-order processes that transfer population to multiple dipole forbidden states. The use of broadband, coherent extreme ultraviolet (XUV) radiation allows observation of these LISs without specifically tuning to a two-photon resonance, as …

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Quantum Gravity Extension Of The Inflationary Scenario, Ivan Agullo, Abhay Ashtekar, William Nelson Dec 2012

Quantum Gravity Extension Of The Inflationary Scenario, Ivan Agullo, Abhay Ashtekar, William Nelson

Faculty Publications

Since the standard inflationary paradigm is based on quantum field theory on classical space-times, it excludes the Planck era. Using techniques from loop quantum gravity, the paradigm is extended to a self-consistent theory from the Planck scale to the onset of slow roll inflation, covering some 11 orders of magnitude in energy density and curvature. This preinflationary dynamics also opens a small window for novel effects, e.g., a source for non-Gaussianities, which could extend the reach of cosmological observations to the deep Planck regime of the early Universe. © 2012 American Physical Society.

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Cordova Psychrophiles Bio-Digester Benefit-Cost And Sensitivity Analysis, Sohrab Pathan, Alejandra Villalobos Meléndez, Ginny Fay Dec 2012

Cordova Psychrophiles Bio-Digester Benefit-Cost And Sensitivity Analysis, Sohrab Pathan, Alejandra Villalobos Meléndez, Ginny Fay

ISER Reports

Cordova is located in southcentral part of Alaska, 150 miles southeast of Anchorage, and can be accessed only by boat or plane. The average winter temperature1 varies from 17⁰ F to 28⁰ F (-8⁰ C to -2⁰ C) and the average summer temperature varies from 49⁰ F to 63⁰ F (9⁰ C to 17⁰ C).2 To support Cordova’s ongoing energy independence efforts , the Denali Commission approved a science project for the Science Club students at Cordova High School using Emerging Energy Technology Funds to develop a bio-digester that uses psychrophiles, a cold climate bacteria, that can reproduce in very …

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Redlined Text Of The Leahy-Smith America Invents Act (Aia) And Unrelated Sections Of The Patent Act Pending Enactment Of H.R. 6621, Brian J. Love Dec 2012

Redlined Text Of The Leahy-Smith America Invents Act (Aia) And Unrelated Sections Of The Patent Act Pending Enactment Of H.R. 6621, Brian J. Love

Faculty Publications

No abstract provided.

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Pirates Grab 76-74 Win Over Mountain Lions On Monday, Armstrong State University Dec 2012

Pirates Grab 76-74 Win Over Mountain Lions On Monday, Armstrong State University

Armstrong Athletics: Men's Basketball News (Archived)

Pirates Grab 76-74 Win Over Mountain Lions On Monday. The Armstrong Atlantic State University men's basketball squad withstood a big second half run by Young Harris College to come away with a 76-74 Peach Belt Conference victory on Monday evening at Alumni Arena.

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Emu Today, December 17, 2012, Eastern Michigan University Dec 2012

Emu Today, December 17, 2012, Eastern Michigan University

EMU Today

No abstract provided.

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Sanders V. Board Of Trustees Cross Appellant's Reply Brief Dckt. 40013 Dec 2012

Sanders V. Board Of Trustees Cross Appellant's Reply Brief Dckt. 40013

Idaho Supreme Court Records & Briefs, All

No abstract provided.

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Ecological Development Of A Management Plan For Reindeer (Rangifer Tarandus) On St. George Island, Alaska, Michelle L. St. Martin Dec 2012

Ecological Development Of A Management Plan For Reindeer (Rangifer Tarandus) On St. George Island, Alaska, Michelle L. St. Martin

Agriculture and Horticulture

Management of an herbivore production system requires a working knowledge of the components and processes of the targeted grazing system. Land owners and stakeholders wish to develop a management plan for reindeer on St. George Island, Alaska. The foci of this study were to determine seasonal diet composition (including forage preference); evaluate nutritional content of Angelica lucid, a potential alternative winter forage; estimate lichen biomass; and estimate reindeer abundance, annual production, and sustainable stocking density. Lichens were the preferred reindeer forage throughout the year, however significant seasonal dietary shifts occurred across the seasons. Fortis and grasses were consumed in significantly …

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Quantity And Quality Of Freshwater Rearing Habitat In Relation To Juvenile Pacific Salmon Abundance In The Kulukak River, Alaska, Jesse M. Coleman Dec 2012

Quantity And Quality Of Freshwater Rearing Habitat In Relation To Juvenile Pacific Salmon Abundance In The Kulukak River, Alaska, Jesse M. Coleman

Fisheries

Monitoring of freshwater habitat and its influence on stream-rearing fish is essential for recognizing and mitigating the impacts of human- and climate-induced changes. For the purposes of developing a monitoring program in the U.S. Fish and Wildlife Service Togiak National Wildlife Refuge, densities and habitat relationships of juvenile coho salmon Oncorhynchus kisutch and sockeye salmon O. nerka were estimated in two tributaries of the Kulukak River, Alaska, in July 2010. Multiple-pass depletion electrofishing was used to estimate density in a random sample of habitat units belonging to one of four categorical habitat classes. Regression methods were also used to quantify …

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Subsistence Salmon Fishing In Beaufort Sea Communities, Shelley S.D. Cotton Dec 2012

Subsistence Salmon Fishing In Beaufort Sea Communities, Shelley S.D. Cotton

Fisheries

Environmental change, combined with observations of increasing numbers of salmon in subsistence fisheries, has generated a need for more information about salmon use, abundance, and distribution in the Arctic. Ethnographic research was conducted in Barrow and Nuiqsut, Alaska, in 2010 and 2011 with 41 active fishermen and elders. Salmon catches were perceived to be increasing; however, perceptions about changing salmon abundance were mixed. While pink salmon (Oncorhynchus gorbuscha) and chum salmon (O. keta) have been observed in subsistence fisheries in the central North Slope region for over 50 years, only within the last 10 to 20 years has local use …

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Characterizing The Fish Community In Turbid Alaskan Rivers To Assess Potential Interactions With Hydrokinetic Devices, Parker T. Bradley Dec 2012

Characterizing The Fish Community In Turbid Alaskan Rivers To Assess Potential Interactions With Hydrokinetic Devices, Parker T. Bradley

Fisheries

The Yukon and Tanana rivers are two large, glacially turbid rivers in Alaska, where hydrokinetic projects are being explored for feasibility of electricity production. Downstream migration behavior of fishes in these rivers is poorly understood; as a result, the potential impacts of hydrokinetic devices, which will be placed in the deepest and fastest part of the river, on fishes are unknown. Downstream migrating fishes were sampled during the ice-free season along the river margins of the Yukon River in 2010 and the river margins and mid-channel of the Tanana River in 2011. Results suggest that the river margins in the …

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Impacts Of Sea Otter Predation On Commercially Important Sea Cucumbers (Parastichopus Californicus) In Southeast Alaska, Sean D. Larson Dec 2012

Impacts Of Sea Otter Predation On Commercially Important Sea Cucumbers (Parastichopus Californicus) In Southeast Alaska, Sean D. Larson

Fisheries

Consequences from management actions, particularly those regarding species reintroductions, are not always immediately apparent. After sea otters were extirpated from Southeast Alaska in the 18th and 19th century fur trade, it is presumed that marine invertebrate stocks grew in the absence of sea otter predation. Since reintroduction in the 1960s, the Southeast Alaska sea otter population has grown, with great potential to deplete the commercially important sea cucumber, Parastichopus californicus. This study evaluates the interaction with and impacts of sea otters on sea cucumbers using foraging observations and sea cucumber density data collected for fishery management. Sea otter diets, in …

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Incorporating Stakeholder Input In Research Priorities For The Aleutian Islands, Rachael Margaret Wadsworth Dec 2012

Incorporating Stakeholder Input In Research Priorities For The Aleutian Islands, Rachael Margaret Wadsworth

Fisheries

Federal law requires that resource management agencies consider stakeholder input in the selection of preferred alternatives for proposed actions. Not only do stakeholders contribute unique perspectives on the impact of alternative actions and the desirability of various policy objectives, including stakeholders in the decision process adds to the perceived legitimacy of those decisions. Incorporating stakeholder input is legally required and advantageous to sustainable governance of the oceans and implementation of a National Ocean Policy such as ecosystem-based management. Agencies use a variety of formal and informal mechanisms to solicit and incorporate stakeholder input. In this study, we compare expert panel …

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A Test Of Local Adaptation In Seasonally Separate Subpopulations Of Pink Salmon (Oncorhynchus Gorbuscha), Christopher V. Manhard Dec 2012

A Test Of Local Adaptation In Seasonally Separate Subpopulations Of Pink Salmon (Oncorhynchus Gorbuscha), Christopher V. Manhard

Fisheries

Differences in fitness related traits were observed between first generation (F₁) hybrid and control lines of temporally distinct subpopulations of pink salmon (Oncorhynchus gorbuscha). The lines were cultured in a common freshwater environment, released to sea together, and collected at their natal stream as adults. Early-and late-run pink salmon, which are partially genetically isolated by the time at which they return to Auke Creek in Southeast Alaska to spawn, were crossed to create F₁ and F₂ hybrid groups in the even- and odd-year brood lines. Marine survival of controls exceeded that of F₁ hybrids of the even-year brood line, whereas …

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Chancellor's Report 2012-12, John Pugh Dec 2012

Chancellor's Report 2012-12, John Pugh

Chancellor's Report

No abstract provided.

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Modeling Investigation Of Atmospheric Moisture Transport Over The North Pacific Ocean: Role Of Pacific Decadal Oscillation, Cecilia Borries, Xiangdong Zhang Dec 2012

Modeling Investigation Of Atmospheric Moisture Transport Over The North Pacific Ocean: Role Of Pacific Decadal Oscillation, Cecilia Borries, Xiangdong Zhang

Research Posters

Atmospheric moisture content over the North Pacific Ocean can fluctuate under the influence of the Pacific Decadal Oscillation (PDO). For a better understanding of the role which the PDO plays in the North Pacific water budgets and pathways, we conducted sensitivity experiments to examine how atmospheric moisture transport responds to sea surface temperature (SST) anomalies associated with the PDO phases transitions. This study has important implications for improving understanding of precipitation events in areas surrounding the North Pacific.

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Co2 Flux From Tundra Lichen, Moss, And Tussock, Council, Alaska: Assessment Of Spatial Representativeness, Yongwon Kim, Namyi Chae, Bangyong Lee Dec 2012

Co2 Flux From Tundra Lichen, Moss, And Tussock, Council, Alaska: Assessment Of Spatial Representativeness, Yongwon Kim, Namyi Chae, Bangyong Lee

Research Posters

CO2 flux-measurement in dominant tundra vegetation on the Seward Peninsula of Alaska was examined for spatial representativeness, using a manual chamber system. In order to assess the representativeness of CO2 flux, a 40 m × 40 m (5-m interval; 81 total points) plot was used in June, August, and September of 2011. Average CO2 fluxes in lichen, moss, and tussock tundra were 3.4 ± 2.7, 4.5 ± 2.9, and 7.2 ± 5.7 mgCO2/m2/m during growing season, respectively, suggesting that tussock tundra is a significant CO2 source, especially considering the wide distribution of tussock tundra in the circumpolar region. Further, soil …

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Sensitivity Analysis Of Arctic Sea Ice In Cmip5 Climate Model Simulations, Xiangdong Zhang, Chuhan Lu Dec 2012

Sensitivity Analysis Of Arctic Sea Ice In Cmip5 Climate Model Simulations, Xiangdong Zhang, Chuhan Lu

Research Posters

The representative characteristics of the simulated 20th century North Hemisphere sea ice by the CMIP5 models have been evaluated against available observations and compared with those by the CMIP3 models. In addition to the analysis of conventional parameters, such as climatological mean and seasonal cycle of sea ice area (SIA), a transient sensitivity analysis of summer SIA to the changes in Arctic regionally averaged melting season surface air temperatures (SAT) was conducted to better understand physics behind model uncertainties (e.g., Gregory et al. 2004; Zhang 2010).

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Overview Of Bering/Chukchi Sea Wave States For Selected Severe Storms, Katherine A. Pingree-Shippee, Norman J. Shippee, David E. Atkinson Dec 2012

Overview Of Bering/Chukchi Sea Wave States For Selected Severe Storms, Katherine A. Pingree-Shippee, Norman J. Shippee, David E. Atkinson

Research Posters

Strong storms are regular features over the ocean west of Alaska. These systems often loiter, generating moderate to severe marine states which can exhibit persistence, maximizing damage and hazard potential. This analysis presents the wave states associated with selected storms over the Bering and Chukchi Seas. These include the damaging events of October 2004, September 2005, and November 2009, along with a strong event from September 2011 that exhibited north winds. For each event a brief synoptic overview is presented followed by consideration of the resultant wave state, including parameters such as wave steepness. Wave data come from NOAA’s WAVEWATCH …

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