Digital Commons Network^™

Consumer Willingness To Pay For Genetically Engineered Edamame, Elijah John Wolfe

Graduate Theses and Dissertations

This study examined the effect of GM labeling on consumer willingness to pay (WTP) for edamame. It also investigated how people reacted to different messages and whether the order of receiving positive or negative information about GM technology impacted their willingness to pay (WTP). The study had three components: (1) a sensory test of GM and non-GM labeled products; (2) a non-hypothetical experimental auction to assess WTP for GM, non-GM and unlabeled products; and (3) a questionnaire to collect demographics and other information from the participants. Results of the sensory evaluation revealed no statistically significant difference between GM and non-GM …

A Tabu Search, Augment-Merge Heuristic To Solve The Stochastic Location Arc Routing Problem, Tiffany L. Yang

Graduate Theses and Dissertations

The location arc routing problem (LARP) is a network optimization problem combining strategic facility location decisions and tactical or operational vehicle routing decisions for customer demand located on arcs of a network. The LARP seeks to locate facilities, or depots, and create vehicle delivery routes to minimize costs. The total cost is comprised of three components: fixed facility locations costs, fixed route creation (or vehicle acquisition) costs, and variable arc traversal costs. The applications of the LARP are varied and often include public services such as mail delivery, garbage collection, and street sweeping. In all of these applications, the magnitude …

Movements, Music, And Meaning: A Comparative Analysis Of Cultural Narratives In Vietnam Era And Post-9/11 Anti-War Music, Jonathan Nathaniel Redman

Graduate Theses and Dissertations

This thesis examines the presence of widely circulating cultural narratives in the lyrics of approximately eighty anti-war songs from the Vietnam and post-9/11 eras. Unlike prior movements and music research, this thesis privileges culture over movements and views movements as cultural antennae both picking up on trends and cultural narratives, and broadcasting their own altered cultural meanings back into the “cultural airways.” It sees music as a cultural medium which acquires cultural meanings from its surroundings, alters those meanings, synthesizes new ones, and perpetuates old ones. Drawing on comparative and narrative analysis approaches informed by grounded theory techniques, this thesis …

Nutritional Deficiencies During The Harvest Season According To Household Consumption And Level Of Nutritional Knowledge: A Case Study Of Northern Mozambique, Maggie Jo Hansen

Graduate Theses and Dissertations

Mozambique is classified as a low income country, the lowest development classification defined by the World Bank. It is underdeveloped in food security, agricultural production, and nutritional status, and research shows its residents are not foreign to poverty and malnutrition. Low protein, starchy foods (maize, rice, wheat, cassava) comprise the majority of the Mozambican diet; these starchy foods are the most available for consumption. Although availability impacts diet, educational barriers may also threaten the knowledge of nutrition and perceptions of healthy foods. Illiteracy and lack of education are extreme challenges to disseminating nutritional education efforts in the rural Nampula region. …

Geospatial Analysis Of Droughts, Rice And Wheat Production, And Agrarian Vulnerability: A District-Level Study Of The Self-Calibrated Palmer Drought Severity Index In India, Aaron Michael Shew

Graduate Theses and Dissertations

Droughts have affected more people than any other natural disaster in the last century, causing billions in economic damages and millions of deaths. As the Sea Surface Temperatures (SST) have heated in the Indian Ocean, drought patterns across South Asia have changed; the Indian monsoon has become more volatile and less predictable. In this study, monthly self-calibrated Palmer Drought Severity Index (sc-PDSI) data for the time period between 1950 and 2009 were interpolated to India’s districts; then the data were analyzed for changes in frequency and severity. The data were further evaluated using Anselin’s Local Moran’s I Statistic to elicit …

Understanding Employees’ Reactions To Sexual Harassment Training: Interactional Disruptions, Identity Threats, And Negative Training Outcomes, Shannon L. Rawski

Graduate Theses and Dissertations

Sexual harassment training is a common organizational activity. Yet, we do not have very much knowledge about why sexual harassment training is effective or ineffective. There is evidence that employees often react negatively toward sexual harassment training, and these negative reactions may help explain inconsistent findings regarding whether sexual harassment training improves employees’ knowledge, attitudes, and transfer of training to the job context. This dissertation draws from Social interactionism and identity theory to suggest that employees may experience threats to their valued identities at the announcement of sexual harassment training and during the administration of sexual harassment training. Interactional characteristics, …

Love Letters To Illyria: An Actor's Voyage, Stephanie Faatz Murry

Graduate Theses and Dissertations

This thesis outlines the development of the characters of Olivia in William Shakespeare’s

Twelfth Night and Melissa in A.R. Gurney’s Love Letters. It also contains a headshot, resume and link to a website designed to help further my career as a professional theatre artist.

Instructional Methods And Engagement: The Impact Of Gamification On Student Learning Of Apa Style, Joyce Elaine Terrell

Graduate Theses and Dissertations

This research examined the effects of simple gamification on the instructional skill outcome and level of engagement as measured by time, repetitions, and responses to the Cognitive Absorption, Perceived Ease of Use and Perceived Usefulness Scale (Saadé and Bahli, 2005). Participants were 70 graduate and undergraduate students randomly assigned to one of two instructional conditions: gamified or typical online instruction. Instruction consisted of three modules on the use of APA 6th ed. (American Psychological Association) citation and reference style in college level writing. Both groups received the same instruction but with different context and directions. Participants in the typical condition …

Design Of An Assistive Technology Adaptive Switch Using An Inertial Measurement Unit, Ethan Storm Williams

Graduate Theses and Dissertations

A new assistive technology switch for people with disabilities was developed utilizing an Inertial Measurement Unit (IMU) as the sensor technology. The hardware can be customized through firmware to provide custom switch activations on a person by person basis. The firmware is customized to recognize specific data features in the IMU data which identify the desired switch activation movement performed by the user. In this way, the switch can be adapted to activate based on the movements of the user. During this research, the generic hardware platform, including the IMU sensor technology and Bluetooth communications, was designed and tested. An …

A Storm In The Port: The Process Designing Twelfth Night, Jacquelyn Ryan Cox

Graduate Theses and Dissertations

The purpose of this thesis is to document the process and provide all the necessary materials for the realization of the lighting design for the University of Arkansas Department of Theatre’s 2015 production of Twelfth Night by William Shakespeare. This thesis consists of the following materials: designer’s script analysis, design concept statement, historical and evocative research, Vectorworks overstage plot, Vectorworks section plot, LightWright paperwork, cue sheet, final magic sheets, and process evaluation. The materials provided are necessary to the design team, the electricians who hang the light plot, and the designer in order program the cues. Archival photography is included …

Investigating The Factor Structure Of The Teachers’ Sense Of Efficacy Scale With Pakistani In-Service And Pre-Service Teachers, Sajid Ali Yousuf Zai

Graduate Theses and Dissertations

Teachers with a high sense of efficacy are motivated to achieve and are generally optimistic about future learning. There is an extensive body of research that indicates a teacher’s self-efficacy beliefs can be a performance indicator for school outcomes. Research on characteristics related to teachers in Pakistan has been increasing over the last decade, however there are a number of instruments being used with this population without any documented validation studies. The purpose of this study was to investigate the validity of the Teacher Sense of Efficacy Scale (TSES; Tschannen-Moran & Woolfolk Hoy, 2001) to determine the latent structure of …

Influences Of Temperament, Symbolic Gesture, And Caregiver Beliefs On Infant Emotional Expression, Mary Sugg Bassett

Graduate Theses and Dissertations

The purpose of the cross-sectional study was to analyze the relationships of infant temperament, communication through symbolic gesture, caregiver beliefs with emotional expression in infants. Participants were the parents and childcare teachers of sixteen infants and toddlers, between the ages of six and 25 months, currently enrolled at the University of Arkansas child development study center. The independent and combined influence of infant temperament, use of symbolic gestures, and the beliefs of parents and teachers were significantly related to infants’ emotional expression in the study. Parent-reported scores of emotional expression competence were positively correlated to teacher-reported positive temperament levels (r …

Preserving Rice Quality: Fine-Mapping And Introgressing A Fissure Resistance Locus, Haley Marie Sater

Graduate Theses and Dissertations

Rice (Oryza sativa L.) kernel fissuring is a major concern of both rice producers and millers. Fissures are small cracks in rice kernels that increase breakage of kernels when milled, and decrease the value of processed rice. This study employed molecular gene tagging methods to fine-map a fissure resistance (FR) locus found in ‘Cybonnet’, a semidwarf tropical japonica cultivar, as well as transfer this trait to rice genotypes of taller, non-semidwarf plant height that are better adapted to some rice production systems. Three QTLs for FR were previously reported; the FR locus with strongest effect resides near the semidwarf sd-1 …

How Musical Oddballs Warp Psychological Time, Rhimmon Simchy-Gross

Graduate Theses and Dissertations

Oddballs—low-probability, attention-capturing expectancy violations—are judged as longer than non-oddballs, but are temporal intervals that contain oddballs judged as longer than those that do not? In 2 experiments, we tested competing model predictions using a novel and covert measure of subjective duration—musical imagery reproduction. Participants verbally estimated and reproduced with musical imagery repeated, coherent, or incoherent familiar or unfamiliar chord sequences (3.5 s, 7 s, or 12 s) that either did or did not contain dynamic auditory oddballs. Participants verbally estimated repeated chord sequences that contained oddballs as shorter than those that did not, but reproduced with musical imagery incoherent chord …

Soldier's Heart, Thomas Henry Pate Iv

Graduate Theses and Dissertations

Soldier’s Heart is a collection of stories about Preston Henry, a Special Forces Operator, doing what he must to survive combat and what he must--a quest just as harrowing-- to find peace back home. The stories of Soldier’s Heart are interwoven in theme and plot, each story dovetailing with the next. It is a collection that shows not all war wounds can be seen.

Resolving Paragneiss Provenance At Grollier Lake In The Athabasca Granulite Terrane, Western Canadian Shield, Dustin Ply

Graduate Theses and Dissertations

U-Pb crystallization ages of metamorphic and detrital zircons from all three paragneiss samples fall into the range of ca. 1.85-2.59 Ga, excluding two much older grains. Evidence suggests that the paragneiss of Grollier Lake record deformation exclusively from the Taltson and Trans-Hudson orogenies. It is apparent from geochronological data that the Taltson orogeny played an exceedingly larger role in the deformation of these rocks than the Trans-Hudson. Deposition of the paragneiss protoliths most likely culminated between ca. 2037-1994 Ma with metamorphism ceasing by 1852.1 ± 11.1 Ma. The oldest overgrowth considered to be concordant is 1994 ± 12 Ma and …

The Threat At Court: Subversive Uses Of Translation, Transcription, And Tradition In The Henrician Court, Rebecca Marie Moore

Graduate Theses and Dissertations

This project aims to consider the use, at the Henrician court, of the strategies of translation, transcription, and tradition to cushion and to code the presentation of dangerous and radical ideas. Each of these strategies allows the authors deniability, while nonetheless allowing them to communicate clearly with their readers. These writers speak in a code that can be interpreted by anyone at court, but use that code to create just enough distance to avoid overt confrontation with the king. This is further complicated, though, by the king’s own deeply influential role in the creation of that code. Each strategy also …

Understanding How The Southeastern Conference Football Teams Use Twitter Through A Content Analysis, Kristin Elise Pearson

Graduate Theses and Dissertations

The influence of Social media on intercollegiate athletic departments has been prominent in the past few years. With tight budgets, the departments are forced to find different means of marketing and promoting their brand – through embracing Social media platforms. Research on Social media and intercollegiate athletics is limited; therefore, it is necessary to research how the departments are utilizing Social media. With the agenda setting theory as a foundation, this study explores how the 14 SEC football teams are utilizing Twitter. A total of 3,176 tweets were collected from two constructed weeks. Overall, the findings show that the information …

Men Who Coach Women, Shannel Blackshear

Graduate Theses and Dissertations

Although Title IX helped to shape athletics in educational settings, the legislation also transformed the world of coaching. Due to the growing demand for competitive female athletics at the collegiate level, the need for qualified individuals to coach women’s sports continues to grow. As colleges and universities continue to create women’s athletic opportunities, coaching collegiate female teams has become equally competitive to coaching male athletes in terms of pay, benefits, compensation packages, and national attention (Welch & Sigelman, 2007). Despite the fact that 57% (Pilon, 2015), of female collegiate athletic teams are coached by male coaches, there is a gap …

Divining The Southwest: Liminality, Pragmatism, And Regionalism In "Death Comes For The Archbishop", Alex C. Blomstedt

Graduate Theses and Dissertations

This work aims to explore the themes of pragmatism and liminality, particularly as they pertain to spirituality, in Willa Cather’s Death Comes for the Archbishop. By taking an interdisciplinary critical approach to the novel, I will synthesize its spiritual affect into a sensibility called “pragmatic liminality.” Finally, I will connect this sensibility to other works in the Southwestern literary canon and elucidate the foundational importance that pragmatic liminality has to the Southwestern “sense of place” and its role in the larger narratives of regionalism in American literature.

Grieve If You Want, Travis Scott Ray

Graduate Theses and Dissertations

This collection of short stories is trying to say something about empathy. It’s trying to connect with readers in an effort to convey some small kind of emotion the characters are experiencing. It’s about the difficulty we all have connecting and communicating with each other and ourselves.

Perceived Relevance Of Special Education Performance Indicators: Teacher Excellence And Support System, Tiffany Kristin Mrla

Graduate Theses and Dissertations

A study was conducted to investigate the perceived relevance of using a teacher evaluation rubric with performance indicators specific to special education services in place of the standard rubric for teachers used in the State of Arkansas Teacher Excellence Support System (TESS). Through a multi-method approach, the perceptions of special education teachers and administrators regarding implementation of the current model, the significance of perceived differences in pedagogical factors, and potential barriers to effective implementation were identified. This was achieved through survey, interviews, and observations.

Special education teachers and administrators in a given school district were sent a brief survey to …

Toddlers And Technology: An Examination Of How The Digital Surround May Be Related To Prototypic Vocabulary Development And Social Interactions During Play, Hannah Biarnesen Hutcheson

Graduate Theses and Dissertations

This study sought to examine how the digital technology that surrounds young children may be related to prototypic vocabulary development and Social interactions during play. Twenty-six families in the Northwest Arkansas region with children between 15-36 months of age participated in the study. Thirteen children attended a campus preschool, six children attended a grant-funded local preschool, and seven children, all from the Northwest Arkansas area, were part of an earlier home-based study. The materials for the study included a developmental-technology use questionnaire and the MacArthur-Bates Communicative Development Inventories. Archival videotaped play sessions with the seven home-based children utilized a “Little …

“Between The Yes And The No”: Alternative Ontologies And Literary Depictions Of Mysticism In Borges And Mahfouz, David Shane Elder

Graduate Theses and Dissertations

Since the advent of the modern era and the subsequent age of Enlightenment, the rational tradition has enabled the West to assert command of a large area of the globe and its population. While advancing the conditions of living for many, rational structures have also been used to control and repress others. The theosophy of the medieval Islamic mystic Ibn al-ᶜArabī, with its basis in irrational thought, offers a counterpoint to the rational and empirical traditions, the Social orthodoxies to which these epistemologies contribute, and the ontologies with which these epistemologies and orthodoxies are correlated. Yet mystical expression is very …

Control Design Of A Single-Phase Dc/Ac Inverter For Pv Applications, Haoyan Liu

Graduate Theses and Dissertations

This thesis presents controller designs of a 2 kVA single-phase inverter for photovoltaic (PV) applications. The demand for better controller designs is constantly rising as the renewable energy market continues to rapidly grow. Some background research has been done on solar energy, PV inverter configurations, inverter control design, and hardware component selection. Controllers are designed both for stand-alone and grid-connected modes of operation. For stand-alone inverter control, the outer control loop regulates the filter capacitor voltage. Combining the synchronous frame outer control loop with the capacitor current feedback inner control loop, the system can achieve both zero steady-state error and …

Prevention Of Drone Jamming Using Hardware Sandboxing, Joshua Mead

Graduate Theses and Dissertations

In this thesis, we concern ourselves with the security of drone systems under jamming-based attacks. We explore a relatively new concept we previously devised, known as hardware sandboxing, to provide runtime monitoring of boundary signals and isolation through resource virtualization for non-trusted system-on-chip (SoC) components. The focus of this thesis is the synthesis of this design and structure with the anti-jamming, security needs of drone systems. We utilize Field Programmable Gate Array (FPGA) based development and target embedded Linux for our hardware sandbox and drone hardware/software system.

We design and implement our working concept on the Digilent Zybo FPGA, which …

The Grey Men Of Empire: Framing Britain's Official Mind, 1854-1934, Blake Allen Duffield

Graduate Theses and Dissertations

“The Grey Men of Empire: Framing Britain’s Official Mind, 1854-1934,” examines the crucial, yet too often-undervalued role of Britain’s imperial bureaucracy in forging the ethos and identity behind the policy-decisions made across the Empire. Although historians have tended to dismiss them as the faceless and voiceless grey men of Empire, this study argues that the political officers of the Colonial Services represented the backbone of British colonial administration and, quite literally, were responsible for its survival and proliferation. These so-called ‘men on the spot’—the District Officers, Assistant District Officers, and Cadets of the C.S.—made innumerable day-to-day, minute-to-minute decisions free from …

Selling College: Student Recruitment And Education Reform Rhetoric In The Age Of Privatization, Paige Marie Hermansen

Graduate Theses and Dissertations

This dissertation explores the success of for-profit colleges and universities (FPCUs) as a socio-cultural phenomenon that hinges on distinct public discursive strains and neoliberal rhetorics. This project examines the role of language in creating and sustaining particular discourses of higher education and how those discourses are reinforced and reflected in channels of discourse like documentary films and advertisements.

In the context of shifting demands on and representations of higher education, this project critiques the evolving rhetoric of American education and the shift toward a wider acceptance of privatization efforts, as well as the effect this shift has had on prospective …

Development Of Electrochemical Sensors Suitable For In Vivo Detection For Neurotransmitters, Mengjia Hu

Graduate Theses and Dissertations

The electrochemical method of redox cycling was exploited to achieve new discoveries in neurotransmitter detection and to advance its suitability toward in vivo use. Redox cycling has advantages in signal amplification, selectivity of species based on their electrochemical reaction mechanisms, and limited or no background subtraction. Distinction of dopamine from norepinephrine in a mixture with an electrochemical method at unmodified electrodes was demonstrated for the first time in vitro. This ability resulted from a series of fundamental studies of redox cycling behavior of the catecholamines (dopamine, norepinephrine and epinephrine) using different electrode configurations. Taking advantage of the ECC’ mechanism associated …

Quality Assurance In Online Graduate Education: Program Review Processes And Assessment Techniques Used In Higher Education, Lindsay N. Turner

Graduate Theses and Dissertations

The purpose for conducting the study was to form an understanding of the online program assessment and assessment processes in higher education, and how program review processes were adopted and implemented through institutional policies in regard to industry quality assurance standards. The study looked at institutions classified as very high, high, or research universities by the Carnegie Classifications, and which offered online masters programs focused on preparing students for positions in educational administration or leadership roles. The study used an electronic survey and content analysis through institutional policy and quality assurance documents to develop a recommendation for institutional level quality …