Digital Commons Network^™

Spider Mediation Of Polychlorinated Biphenyl Transport And Transformation Across Riparian Ecotones, Diana Delach

All Dissertations

Polychlorinated biphenyls (PCBs) contaminate the sediment of the Twelvemile Creek / Lake Hartwell Superfund Site, and are known to be transported throughout the resident biota via trophic transport. Riparian spiders have recently become of interest because they are terrestrial organisms that have significant PCB exposures derived from aquatic sources. Many riparian spiders primarily consume insects emerging from contaminated aquatic systems, and these spiders can have a body burden as high as 2900 ng/g lipid. These emergent insects carry contaminants out of the river and into the riparian zone where they are captured by spiders, which effectively directs the contamination towards …

Understanding Nanoparticle-Cell Interaction, Ran Chen

All Dissertations

Nanotechnology has revolutionalized the landscape of modern science and technology, including materials, electronics, therapeutics, bioimaging, sensing, and the environment. Along with these technological advancements, there arises a concern that engineered nanomaterials, owing to their high surface area and high reactivity, may exert adverse effects upon discharge to compromise biological and ecological systems. Research in the past decade has examined the fate of nanomaterials in vitro and in vivo, as well as the interactions between nanoparticles and biological and ecosystems using primarily toxicological and ecotoxicological approaches. However, due to the versatility in the physical and physicochemical properties of nanoparticles, and due …

Effects Of Video Feedback On Students' Performance Of A Back Handspring, Kristi A. Kiefer

Graduate Theses, Dissertations, and Problem Reports (ETD)

Purpose: Video technology has become a viable resource for teachers and coaches as a method of providing feedback to students and athletes. Studies support the use of this strategy when applied to teaching adolescents and adults with a proficient skill base. To date little research has identified the use of video technology as a method of feedback in the skill acquisition of children at a novice level. The purpose of this study was to examine the effect of video feedback on the performance of a back handspring. Methods: A multiple-treatment reversal design within each participant with a counter balance was …

Leadership Training Program For Shared Leadership Based On Super Leadership At Cheo-Eum Korean Presbyterian Church : A Study Of Christian Leadership, Houng Jin Youn

ATS Dissertations

No abstract provided.

Becoming Artifacts: Medieval Seals, Passports And The Future Of Digital Identity, Mawaki Chango

School of Information Studies - Dissertations

What does a digital identity token have to do with medieval seals? Is the history of passports of any use for enabling the discovery of Internet users' identity when crossing virtual domain boundaries during their digital browsing and transactions? The agility of the Internet architecture and its simplicity of use have been the engines of its growth and success with the users worldwide. As it turns out, there lies also its crux. In effect, Internet industry participants have argued that the critical problem business is faced with on the Internet is the absence of an identity layer from the core …

Ambient Intelligence With Wireless Grid Enabled Applications: A Case Study Of The Launch And First Use Experience Of Wejay Social Radio In Education, Helen Patricia Mckenna

School of Information Studies - Dissertations

Wireless grid and ambient intelligent (AmI) environments are characterized as supportive of collaboration, interaction, and sharing. The conceptual framework advanced for this study incorporated the constructs of innovation, creativity and context awareness while offering emergence theory -- emergent properties, structures, patterns and behaviors -- to frame and investigate a wireless grid enabled social radio application which was theorized to be potentially transformative and disruptive. The unintended consequences and unexpected possibilities of wireless grid and smart environments were also addressed.

Using a single case study, drawing upon multiple data collection methods, this research investigated the deployment and use experience of …

The Convergence Of Conventional Media And New Technology In The Cases Of The New York Times And National Broadcasting Company (Nbc), Sheng Zhang

Research Papers

During the last decade, the fast development of new technologies: the Internet, personal computer, portable electronic device, etc., have powerful influences on people’s life especially their consuming behavior. By making consumer’s lives easier, technologies also empower them through more choices on merchandise. Meanwhile, new technologies also drive enterprises, particular media companies, to operate with state-of-the-art techniques, physically as well as structurally. This research project studies the convergence of conventional media with new technologies by focusing on the managerial issues with convergence and business strategies that conventional media companies are using. In this project, it will concentrate on the newspaper and …

A Paradigm For Surviving Severe Macro Economic Disruption: The Promethean Life Engagement Practices Framework, Larry G. Straub

Student Scholarship

Unemployment is rapidly becoming an American epidemic of social, political and economic crisis, even more so for “at risk” groups such as older workers. This study focuses on issues and factors surrounding chronic under-employment, unemployment and even un- employability of our older workforce in America. As the American “social contract” i.e. Medicare, Medicaid and Social Security are under enormous strain; much will be at stake as America deals with how social, societal, political, educational, legal and economic institutions handle this very complicated and multi-facetted issue... answering the question... “Will Americans over 50 be our next lost generation?” This study analyzed …

Adversary To Ally: A Relational Approach To Shifting Buyer Paradigms, Donald P. Addison Ii

Student Scholarship

Scholarly literature supports the notion that businesses benefit from long term collaborative relationships with trading partners, yet arm's length, adversarial relationships between buyers and sellers persist. Although scholarly research provides insights regarding conceptual and operational aspects of buyer-seller collaborations, very little has been published concerning the preparation or activities that lead into collaborative relationships. To address this gap this study conducted research involving semi structured interviews with buyers and sellers to understand how collaboration evolves in buyer seller relationships. Of specific interest is how buyer seller relationships, characterized by fear of opportunism and guarded behavior, transition to collaboration characterized by …

The Critical Elements In The Development, Implementation, And Evaluation Of An Anti-Bullying Policy For School Districts, Dwight Bonk

Education Doctoral

The issue of bullying has become prominent in public schools and leads to an unsafe environment for learning. Due to the increased public concern regarding bullying and its impact on student safety and learning, states have been forced to develop legislation to address bullying behaviors. This study determined the necessary components in the development, implementation, and evaluation of anti-bullying policies in schools based on input from key stakeholders. Surveys were distributed to school superintendents and elementary and secondary principals in Dutchess County, New York to determine their rankings of the most important components or processes for inclusion in an effective …

Do U.S. Firms Fly Higher When Bypassing The U.S. Capital Markets? An Investigation Of The Short- And Long-Run Performance Of Foreign Ipos?, Robert N. Killins

Theses and Dissertations - UTB/UTPA

This dissertation studies the performance of U.S. firms that partake in a foreign IPO – bypassing their domestic exchanges and raising their equity in a foreign market. Chapter one provides an introduction and brief review of the main research questions and results. Chapter 2 provides a detailed literature review on initial public offerings-IPOs. This includes relevant studies on the long- and short-run performance of IPOs, theories for IPO underpricing and an international component of the IPO literature. Additional cross-listing literature is also reviewed to provide a more complete and balanced understanding of the international market for equity. Chapter 3 develops …

Zumba® Fitness As A Cultural Mediator, Cole E. Durain

Theses and Dissertations - UTB/UTPA

This ethnography describes local experience as it pertains to aspects of music, dance, and fitness which are compiled into Zumba® Fitness classes of the Rio Grande Valley. While Zumba is not unique to this region, it is locally interpreted based on geo-cultural factors of the Texas-Mexico border region. A large part of Zumba’s success in the Valley can be attributed to the way music is used to identify with regional popular culture and becomes a catalyst for changing the way locals think about health. Research gathered through participant-observation shows that Zumba has become a cultural expression where participants perform both …

Evaluation Of Security Availability Of Data Components For A Renewable Energy Micro Smart Grid System, Leonel Aguilera Zambrano

Theses and Dissertations - UTB/UTPA

In this thesis, we study the development and security testing of photovoltaic data collection system. With the introduction of the smart grid concept, a lot of research has been done on the communication aspect of energy production and distribution throughout the power network. For Smart Grid, Internet is used as the communication medium for specific required services and for data collection. Despite all the advantages of the Smart Grid infrastructure, there is also some security concern regarding the vulnerabilities associated with internet access. In this thesis, we consider security testing of the two most popular and globally deployed web server …

Identifying Local Entrepreneurship Development System Policy In Rural Areas And How Local Context Shapes Entrepreneurship Policy Formation, Stacey Wright Mccullough

Graduate Theses and Dissertations

As rural communities struggle to maintain a sustainable economic base in today's global economy, many are exploring strategies to encourage entrepreneurial development. The purpose of this study was to better understand how local public policy is being be used to support the creation of entrepreneurship development systems in rural communities and how local context shapes entrepreneurship public policy formation. In phase one of the study, a survey and analysis of documents available on the Internet were used to identify county and municipal policy actions associated with entrepreneurial development in 16 counties in North Carolina. In the second study phase, two …

Evaluation Of The Recombination Efficiencies Of Flp Proteins, Linh Duy Nguyen

Graduate Theses and Dissertations

Site-specific recombination systems are powerful tools for genetic modification. They have been used to integrate a transgene into a pre-defined locus and to remove marker genes from a transgene locus. Two of the most widely used site-specific recombination systems in plants are the Cre/lox system from the bacteriophage P1 and the FLP/FRT system from the yeast Saccharomyces cerevisiae. The Cre/lox system is well-characterized and is the first choice in application of site-specific recombination system. However, some applications such as marker-free site-specific gene integration require the use of two recombination systems. In addition, the availability of alternative recombination systems can offer …

2012 December, Office Of Communications & Marketing, Morehead State University.

Morehead State Press Release Archive, 1961 to the Present

Press releases for December of 2012.

Ideology In Popular Late Twentieth And Twenty-First Century Children's And Young Adult Literature And Film, Iris Grace Shepard

Graduate Theses and Dissertations

Texts created for the consumption of children and young adults are not simple texts made for the sole purpose of entertaining young audiences. In fact, these texts are complicated, multi-faceted texts that function both in the creation and performance of childhood. Children's and young adult literature and film disseminated mainstream ideology about young people's place in society and attempt to enculturate young readers and viewers in regards to race, gender, age, and Social class. However, by helping young people interact critically with these texts, critical thinking skills as well as a passion for reading can be fostered. In addition, by …

An Ethnographic Case Study Of A Deaf Workforce Collective, Peter Shane Butler

Graduate Theses and Dissertations

This ethnographic study seeks to increase our understanding of the individual and shared experiences of five members of a Deaf United States Postal Service (USPS) collective employment cohort in regards to their early learning experiences, how these experiences led to collective employment, and how the collective employment opportunity led them to establish a new Strong Deaf Community in Houston. The data collected through semi structured interviews will be used to increase our understanding about how Strong Deaf Communities form, and what purpose they serve for grassroots members.

This study also seeks to shed light on why it is critical for …

Plasmonic And Photonic Designs For Light Trapping In Thin Film Solar Cells, Liming Ji

Graduate Theses and Dissertations

Thin film solar cells are promising to realize cheap solar energy. Compared to conventional wafer cells, they can reduce the use of semiconductor material by 90%. The efficiency of thin film solar cells, however, is limited due to insufficient light absorption. Sufficient light absorption at the bandgap of semiconductor requires a light path more than 10x the thickness of the semiconductor. Advanced designs for light trapping are necessary for solar cells to absorb sufficient light within a limited volume of semiconductor. The goal is to convert the incident light into a trapped mode in the semiconductor layer.

In this dissertation, …

The Relationship Of Peer Acceptance, Age, Gender, Ethnicity, And Appearance Among Preschoolers, Kora Klaire Stuffelbeam

Graduate Theses and Dissertations

The purpose of this study was to examine preschool children's acceptance of peers. The term peer acceptance is defined as "the degree a child is Socially accepted or rejected by his or her peer group." Johnson et al. (2002) found children between the ages of three and five were able to develop friendships and Social skills that would impact their acceptance among peers. The study determined if children based their choice of peers according to a child's age, gender, ethnicity, appearance, and/or Social skills. The subjects of this study were 31 children whose ages were three-, four-, and five-years-old who …

An Enhanced Model For Managing Change In Organizations, Thomas A. Pollack, John M. Lanasa, Dorene Ciletti

Journal of Applied Marketing Theory

Change has become a “way of life” in organizations. The pace of change has increased substantially in recent years as a result of issues such as the pressures of global competition the impact of the Internet, customer demands and ever changing enhancement of technical capabilities. These changes affect what people do and how they fulfill their responsibilities, and therefore, there are varied reactions Historically, failures in change implementation have not been attributable to a lack of technical feasibility and functionality but instead have been the result of employee resistance. The difficulty of implementing organizational change has presented an ongoing challenge …

The Impact Of Listen To The Voice Of The Customer In Achieving Competitive Superiority, Saadoon Hammood Chitheer Al-Rubaiawi, Sarah Ali Saeed

Journal of Economics and Administrative Sciences

The subject of the listen to the voice of the customer of topics relatively new in management thought, as it won the attention of many organizations of different types, because it is important to achieve success and to continue and superiority to them, so there is a need to study this term in the Iraqi organizations and try to diagnose the implementation of the study sample to listen voice of the Customer and its impact in achieving the competitive superiority. The study sample consisted of a group of workers in the company Zain and Asia Cell Telecommunications have been using …

International Cooperation In The Face Of Internet Crimes, Wissam Aldien Aloklah

Journal of Economics and Administrative Sciences

In the early 1960s, the Internet emerged for non-commercial purposes before undergoing a staggering evolution in recent years; what began as a modest network has expanded into a global infrastructure encompassing millions of users, transforming from a mere academic research tool into an integrated environment for investment, labor, production, media, and information retrieval. During its inception, priority was given to network construction and expansion rather than security; however, following its public availability, the phenomenon of "cybercrime"—committed either on or through the network—emerged, characterized by innovative methods, rapid execution, ease of concealment, and the ability to erase digital footprints across diverse …

Community-Based Classification Of Noun Phrases In Twitter, Freddy Chong Tat Chua, William W. Cohen, Justin Betterridge, Ee-Peng Lim

Research Collection School Of Computing and Information Systems

Many event monitoring systems rely on counting known keywords in streaming text data to detect sudden spikes in frequency. But the dynamic and conversational nature of Twitter makes it hard to select known keywords for monitoring. Here we consider a method of automatically finding noun phrases (NPs) as keywords for event monitoring in Twitter. Finding NPs has two aspects, identifying the boundaries for the subsequence of words which represent the NP, and classifying the NP to a specific broad category such as politics, sports, etc. To classify an NP, we define the feature vector for the NP using not just …

Investigating Intelligent Agents In A 3d Virtual World, Yilin Kang, Fiona Fui-Hoon Nah, Ah-Hwee Tan

Research Collection School Of Computing and Information Systems

Web 3.0 involves " intelligent " web applications that utilize natural language processing, machine-based learning and reasoning, and intelligent techniques to analyze and understand user behavior. In this research, we empirically assess a specific form of Web 3.0 application in the form of intelligent agents that offer assistance to users in the virtual world. Using media naturalness theory, we hypothesize that the use of intelligent agents in the virtual world can enhance user experience by offering a more natural way of communication and assistance to users. We are interested to test if media naturalness theory holds in the context of …

Social And Adversarial Varieties Of Democracy: Which Produces Fewer Criminals?, Devin K. Joshi

Research Collection School of Social Sciences

This article explores the relationship between two prominent varieties of democracy and the size of a country’s prison population. Theoretically, it proposes that social democracies increase social and economic equality which reduces both the “demand for crime” and the number of criminals. Adversarial democracies, on the other hand, generate higher levels of inequality and insecurity that lead to higher levels of crime. Utilizing a structured, focused comparison of Nordic social democracies and Anglo-American adversarial democracies complemented by cross-sectional multiple regression analysis of twenty industrialized democracies, I find empirical support for both of these conjectures. A major implication of this study …

Creating The Park Cool Island In An Inner-City Neighborhood: Heat Mitigation Strategy For Phoenix, Az, Juan Declet-Barreto, Anthony J. Brazel, Chris A. Martin, Winston T. L. Chow, Sharon L. Harlan

Research Collection School of Social Sciences

We conducted microclimate simulations in ENVI-Met 3.1 to evaluate the impact of vegetation in lowering temperatures during an extreme heat event in an urban core neighborhood park in Phoenix, Arizona. We predicted air and surface temperatures under two different vegetation regimes: existing conditions representative of Phoenix urban core neighborhoods, and a proposed scenario informed by principles of landscape design and architecture and Urban Heat Island mitigation strategies. We found significant potential air and surface temperature reductions between representative and proposed vegetation scenarios: 1) a Park Cool Island effect that extended to non-vegetated surfaces; 2) a net cooling of air underneath …

Characterization Of Starch By Vibrational Spectroscopy, Brandon H. Holder

Department of Food Science and Technology: Dissertations, Theses, and Student Research

To develop a dispersive Raman spectroscopic method for measuring amylose-amylopectin ratios of corn starch mixtures, 67 mixtures were prepared by randomly mixing waxy and normal corn starches. Amylose contents were measured using a dual wavelength iodine binding colorimetric method. Raman data were collected from 250 to 3200 cm^-1 using optimized instrument parameters. Partial least-squares (PLS) and principal components regression (PCR) were used to prepare multivariate calibration models; however, PLS commonly outperformed PCR. Truncating the spectra to 250 to 2000 cm^-1 improved the results (r² of validation = 0.831, SEP = 2.90%). Removal of a cold water swelling …

Perceptions Of A Middle School Reconfiguration: A Descriptive Case Study, Karen Billingsley Lasker

Graduate Theses and Dissertations

The purpose of this qualitative research study was to follow 1 principal's journey to assist the district in its reconfiguration goals, and help the school change through deep examination of district personnel's and parents' perceptions of the change process. This was done by acknowledging distinctions and differences between junior high schools, the current middle school, and the new middle school, delineated by current middle school-reform research. This study explored issues regarding the policies, personnel, decision-making strategies, timelines, and organizational structures of the new middle school.

The reconfiguration resulted in rezoning attendance zones, reconstructing the new high school, raising the new …

Trait Differences In Gender In Technology Use And Study Habits Of Rural Community College Students, Phillip Marc Wilson

Graduate Theses and Dissertations

The purpose for conducting the study was to explore the trait differences by gender of the study habits and technology use patterns of rural community college students. Significant research and data presently exists at the university level specific to study habits and technology use, but little research had been conducted targeting those topics in a rural community college setting.

The following questions guided the research:

1. What were the study habits of rural community college students?

2. How did rural community college students use technology?

3. Were there significant differences, by gender, in the study habits of rural community college …