Digital Commons Network^™

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 …

Modeling The Thermal Balance Between Groundwater Springs And River Ice, Chas Jones, Knut Kielland, Larry Hinzman

Research Posters

We modeled the thermal balance between groundwater discharge and ice-free areas in the Tanana River near Fairbanks, Alaska, a region that is characterized by discontinuous permafrost. Under degrading permafrost conditions, these areas have been hypothesized to have increased winter discharge due to increasing contributions from groundwater flow. In the winter, interior Alaskan rivers are fed almost entirely by groundwater, which also serves as an external source of heat energy to the system. Several reaches of the river fed by groundwater springs remain ice-free or have dangerously thin ice throughout the winter despite air temperatures that dip below -40° C. These …

Dynamic Interactions Of Snow And Plants In The Boreal Forest, Winter 2011-2012 Revealed By Time-Lapse Photography And Lidar, Simon Filhol, Matthew Sturm

Research Posters

As winter progresses, snow accumulates on the ground and plants of the boreal forest. On their passage to the ground, the falling snowflakes encounter physical obstacles like the complex structure of tree branches and shrubs. These cause the fall trajectories to deviate, and in some cases even stop, before a snowflake reaches the forest floor. After deposition, wind and gravitational settlement further affect the snow distribution. Because of these snow-vegetation interactions, snow gets distributed in the forest along vertical and the horizontal directions in a complex way. To better understand these interactions between snow and plants, we designed an experiment, …

Propagation Of Tsunami-Induced Acoustic-Gravity Waves In The Atmosphere, Vladimir A. Alexeev, Dmitry J. Nicolsky

Research Posters

A dynamical core of an atmospheric GCM is utilized for assessing the qualitative picture of propagation of atmospheric acoustic-gravity waves in response to perturbations generated by tsunami waves at the surface. Both resting isothermal atmosphere and model- generated atmosphere with realistic stratification and circulation features were considered. Shallow water tsunami model was run in two different configurations: ocean of equal depth of 4 km and ocean with realistic continents and bottom topography. Amplitude and timing of atmospheric response is analyzed as a function of vertical stratification and configuration of atmospheric jets. This approach has a potential for early tsunami detection …

Continuing Education Training Focused On The Development Of Behavioral Telehealth Competencies In Behavioral Healthcare Providers, Valerie Gifford, Britton Niles, Inna Rivkin, Catherine Koverola, Jodi Polaha

ETSU Faculty Works

Introduction: Telehealth allows behavioral health care and specialty services to be extended to rural residents. Telehealth is an important resource for the Alaskan healthcare system, which is tasked with providing services to culturally diverse populations living in remote areas. Training competent providers to deliver telehealth services is vital for the implementation of successful telehealth programs. Yet, the literature is lacking in the area of provider behavioral telehealth competency training.

Methods: This study assessed the impact of a Behavioral Telehealth Ethical Competencies Training program on 16 behavioral health providers' development of behavioral telehealth competency. A total of 14 competencies were developed, …

Gene, Pathway And Network Frameworks To Identify Epistatic Interactions Of Single Nucleotide Polymorphisms Derived From Gwas Data, Yu Liu, Sean Maxwell, Tao Feng, Xiaofeng Zhu, Robert C. Elston, Mehmet Koyutürk, Mark R. Chance

Faculty Scholarship

Background: Interactions among genomic loci (also known as epistasis) have been suggested as one of the potential sources of missing heritability in single locus analysis of genome-wide association studies (GWAS). The computational burden of searching for interactions is compounded by the extremely low threshold for identifying significant p-values due to multiple hypothesis testing corrections. Utilizing prior biological knowledge to restrict the set of candidate SNP pairs to be tested can alleviate this problem, but systematic studies that investigate the relative merits of integrating different biological frameworks and GWAS data have not been conducted.Results: We developed four biologically based frameworks to …

Bereavement In Emerging Adulthood: The Influence Of Religion And Type Of Loss, Elizabeth Collison

Theses and Dissertations

Bereavement is an important area of research as it may result in grief reactions that lead to serious psychological and health consequences (Stroebe, Schut, & Stroebe, 2007). Positive outcomes, such as personal growth or spiritual well-being, may also transpire post-loss (Hogan & Schmidt, 2002; Paloutzian & Ellison, 1982). Though research on bereavement has grown, few studies have focused on the at-risk group of emerging adults (Hardison, Neimeyer, & Lichstein, 2005; Arnett, 2000). The current study aims to add to the bereavement in emerging adulthood literature through analyzing descriptive data and assessing the impact of type of loss (i.e., nonviolent vs. …

Bjc Today

BJC Today

No abstract provided.

Roadway System Assessment Using Bluetooth-Based Automatic Vehicle Identification Travel Time Data, Christopher M. Day, Thomas M. Brennan, Alexander M. Hainen, Stephen M. Remias, Darcy M. Bullock

JTRP Affiliated Reports

This monograph is an exposition of several practice-ready methodologies for automatic vehicle identification (AVI) data collection systems. This includes considerations in the physical setup of the collection system as well as the interpretation of the data. An extended discussion is provided, with examples, demonstrating data techniques for converting the raw data into more concise metrics and views. Examples of statistical before-after tests are also provided. A series of case studies were presented that focus on various real-world applications, including the impact of winter weather on freeway operations, the economic benefit of traffic signal retiming, and the estimation of origin-destination matrices …

The Eastern Echo, December 17, 2012, Eastern Michigan University

EMU Student Newspaper: The Normal News & The Eastern Echo

No abstract provided.

Kelp Forests And Barren Grounds: Phlorotannin Production And Holdfast Community Structure In The Aleutian Dragon Kelp, Eualaria Fistulosa, Martin D. Schuster

Marine Biology

The canopy forming kelp Eualaria fistulosa inhabits two organizational states throughout the Aleutian archipelago, kelp forests and barren grounds. Urchin abundance and behavior determines which state dominates in any given area. Sporophyll phlorotannin content and holdfast epibiont fauna were investigated at multiple islands along the Aleutian archipelago to determine how the organizational state affects the production of secondary metabolites and the taxon richness, abundance and biomass of holdfast communities. Barren ground sporophylls had higher phlorotannin content than kelp forest sporophylls, although grazing rates on sporophylls from each state did not differ during in situ grazing experiments. The taxon richness, abundance …

Module-Based Subnetwork Alignments Reveal Novel Transcriptional Regulators In Malaria Parasite Plasmodium Falciparum, Hong Cai, Changjin Hong, Jianying Gu, Timothy G. Lilburn, Rui Kuang, Yufeng Wang

Publications and Research

Background Malaria causes over one million deaths annually, posing an enormous health and economic burden in endemic regions. The completion of genome sequencing of the causative agents, a group of parasites in the genus Plasmodium, revealed potential drug and vaccine candidates. However, genomics-driven target discovery has been significantly hampered by our limited knowledge of the cellular networks associated with parasite development and pathogenesis. In this paper, we propose an approach based on aligning neighborhood PPI subnetworks across species to identify network components in the malaria parasite P. falciparum. Results Instead of only relying on sequence similarities to detect functional orthologs, …

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 …

Johnny Pierre V. Attorney General United States

2012 Decisions

Agency

The Eastern Echo, December 17, 2012, Eastern Michigan University

EMU Student Newspaper: The Normal News & The Eastern Echo

No abstract provided.

Factors Causing Demotivation In Efl Teaching Process: A Case Study, Selami Aydin

The Qualitative Report

Studies have mainly focused on strategies to motivate teachers or the student-teacher motivation relationships rather than teacher demotivation in the English as a foreign language (EFL) teaching process, whereas no data have been found on the factors that cause teacher demotivation in the Turkish EFL teaching contexts at the elementary education level. Thus, this study aims to investigate the demotivating factors in EFL teaching at the elementary level. The study was designed as a qualitative case study, and involved face-to-face conversations, MSN talks and a diary maintained by the subject for data collection. The results showed that the problems were …

Lived Experiences Of Diversity Visa Lottery Immigrants In The United States, Tekleab Elos Hailu, Bernadette M. Mendoza, Maria K.E. Lahman, Veronica M. Richard

The Qualitative Report

Every year approximately 50,000 people immigrate to the United States through the avenue referred to as the Diversity Visa (DV) Lottery. In this article, the authors present a literature review of immigration to the U.S. through the DV Lottery, reflect on their own immigration histories, and utilize phenomenology to investigate and describe participant feelings, expectations, and experiences as DV Lottery immigrants. Participants experienced mixed feelings, including high expectations prior to and difficulties after immigrating to the U.S. Findings presented include (a) life experienced in the U.S.; (b) access to learning and training opportunities; and (c) recommended support future DV Lottery …

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 …

The Eastern Echo, December 17, 2012, Eastern Michigan University

EMU Student Newspaper: The Normal News & The Eastern Echo

No abstract provided.

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 …

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 …

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 …

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 …

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 …

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 …

Neighborhood Perceptions And Emotional Well-Being In Young Adulthood, Karen A. Snedker, Carole Hooven

Sociology Faculty Articles and Research

Problem:

While mounting research suggests that neighborhood environment impacts mental health outcomes, for adolescents and adults, there is scant research on how perceived neighborhood context affects young adults. In this article, we explore the role of perceived neighborhood characteristics, specifically indicators of perceived neighborhood stressors, on emotional well-being among young adults.

Method:

Using a regional sample of young adults, we estimate regression models to examine the relationship of perceived neighborhood stressors on three mental health outcomes (depressed affect, hopelessness, and anger), reflective of a general emotional well-being, while controlling for key individual characteristics related to mental health outcomes.

Findings:

Results …

Deafdigest: Gold Edition, December 16, 2012, Barry Strassler

DeafDigest Gold 2012

No abstract provided.

Distributed Development And Product Line Decisions, Ram Bala, V. Krishnan, Wenge Zhu

Information Systems and Analytics

Distributed product development is becoming increasingly prevalent in a number of industries. We study how the global distribution of product development impacts the profit-maximizing product line that a firm offers. Specifically, we formulate a model to understand the linkage between cost arbitrage as a driver of distributed development and consequent market implications such as customer perceived quality loss to remotely developed products. Analysis of the model reveals that a firm should expand the product line for a development-intensive good only at intermediate values of cost advantage and quality loss. We modify the base model to include development capacity constraints as …

Deafdigest: Blue Edition, December 16, 2012, Barry Strassler

DeafDigest Blue 2012

No abstract provided.

Honorable Mentions: A Publication Of Psu Honors College, Honors College

Honorable Mentions

No abstract provided.