Digital Commons Network^™

Dissecting The Cellular Control Of Septin Organization In A Global Cereal Killer, Nawaraj Dulal

Graduate Theses and Dissertations

Rice blast disease, caused by the filamentous fungus Magnaporthe oryzae, destroys sufficient rice each year to feed 60 million people, and is a serious threat to global food security. A wheat-adapted lineage of M. oryzae now poses threat to global wheat production. Rice blast disease is currently controlled using limited fungicides, and the emergence of fungicide resistance within M. oryzae populations is a growing concern. There is a pressing need to identify new classes of fungicides to control the disease, which requires better understanding of the basic biology of the pathogen. To establish disease, M. oryzae forms a specialized dome …

Glut And Guzzle, Ashley Kay Gardner

Graduate Theses and Dissertations

In Glut and Guzzle I explore my relationship with my partner, our sexualities and how to navigate these outside of the LDS faith of my childhood, and their struggles with gender, sexual expression and mental illness. This exploration landed on seductive and repulsive imagery of food and body. I use color, texture and size as a tool similar to visual tools of advertising to seduce my viewer. This is an exploration of how gender norms and the visual language of advertising that infiltrates daily lives and through media and religion can shape identity and gender roles. I utilize advanced 3D …

The Role Of Designers In Promoting Healthy Masculinity With An Approach To Stopping Violence Against Women And Girls, Fatemeh Abolbashari

Graduate Theses and Dissertations

While awareness about violence against women and girls is growing, there is still a lack of evidence about what changes behavior to prevent it from happening. As a graphic designer, I wanted to find the root problem of this issue and work towards a solution. Through my research and questioning, I concluded that this problem begins with men’s thoughts on hierarchy, language, and behavior, and supported by a prevalence of toxic masculinity in men’s culture.

Where does this violence come from? What has society done to raise this kind of man? Violence against women and girls is being couched in …

Taxonomic And Genetic Diversity, And Pathogenicity Of Diaporthe Species Associated With Soybean, Fakhir Eraheem Hameed Al Shuwaili

Graduate Theses and Dissertations

Diaporthe species (anamorph: Phomopsis) are associated with a wide range of plant hosts as plant pathogens, asymptomatic endophytes, and saprobes. One of these hosts is soybean, which is one of the most important crops in U.S. agriculture. Several Diaporthe species cause important diseases on soybean in the U.S., and specifically in Arkansas. The taxonomy, genetic diversity, and pathogenicity of Diaporthe species associated with asymptomatic infection of soybean are rarely studied with accurate molecular tools. Therefore, this dissertation aimed to assess the diversity and boundaries of Diaporthe associated with soybean in Arkansas. Furthermore, pathogenicity and alternative lifestyles were assessed among Diaporthe …

Election Day — Documentary, John Thomas Tarpley

Graduate Theses and Dissertations

Election Day is a three-channel documentary chronicling the places, personalities, and tone of Little Rock, Arkansas, during its titular midterm Election Day in November 2018. Throughout the course of the day, the film branches across the city, capturing mini-narratives, bits of conversation, and tableau of civic activity in the public sphere. It is less concerned with the quantitative facts of the day as it is with conveying the transitory social expressions and moods of a modern, southern city on a uniquely American day. This project represents my continued documentary interest in creating inclusive, contemporary local portraits and counter-historical chronicles of …

A Spatial Analysis Of Student Safety And Perception, University Of Arkansas-Fayetteville, Casey Goodman

Graduate Theses and Dissertations

The objective of this research lies within a community's effects upon, reactions to, and perceptions towards safety in their inhabited landscapes during various periods of the day. Through cognitive and spatial research, we can construct bridges between individuals' perceptions and reality. This study pertained to a student population sample and their views of public safety on the University of Arkansas campus in Fayetteville, Arkansas. Questions were asked as to why they felt unsafe, and where they felt the most unsafe (or safe). The student perceptions were compared to reported crimes on the University of Arkansas campus to ascertain gaps in …

Student-Run Agencies: A Guideline For Agency Survival, Brooke Borgognoni

Graduate Theses and Dissertations

The purpose of this paper is to study 110 student-run agencies (including advertising, public relations, integrated/digital marketing, communications, and graphics and/or design) in the U.S. by analyzing how they currently operate, what practices exist in the agencies for learning, growth, and continuation and how leadership roles of students and advisors influence the agency. This project built upon past studies of student-run agencies and expanded on the topic using the evolutionary theory of a firm by analyzing factors that determine whether it appears that a student-run agency might dissolve or last. This was determined by measuring the faculty advisor involvement level, …

Relationship Marketing And Intercollegiate Sport Promotion, Alison Fridley

Graduate Theses and Dissertations

The first article, a case study on a NCAA Division I Power Five university in the southeastern United States, employed a case study framework, explored target markets and exposure techniques through both the planned behavior theory and social identity theory theoretical lenses. This study aimed to better understand how university students and booster club members identify as a social group. The data emerged into four distinct themes, including communication, social interaction, connection, and hospitality. The findings suggested booster club members are primary fans and help the team generate fan interest. The importance of sociability was clear and the implications for …

Beauty Is Not Black And White: A Content Analysis Of Black Women’S Body Image In Television Media, Alexis Hubbard

Graduate Theses and Dissertations

There are few bodies of literature that look at Black women’s body image in television media. When Black women were studied most research (Falconer & Neville, 2000; Jhally & Kilbourne, 2010; Smith, 2014; Shearon-Richardson, 2011;) compared them to White ideals. However, this study did a content analysis of Black women in predominantly Black or ethnically diverse television shows using qualitative studies that suggest a Black ideal. The researcher examined lead character(s) body shapes, comments about their body, hair texture and comments about their hair. This research looked at protective factors (aspects Black life that allow for more body satisfaction) like …

Critical Approaches To Digital Video Composition And Media Literacy In Preservice Teacher And High School Contexts: Understanding Students’ Perspectives, Seth D. French

Graduate Theses and Dissertations

The first of the following manuscripts explores graduate-level preservice teachers’ responses to a critical digital video project in the context of a Disciplinary Literacies course. This study was particularly interested in the preservice teachers’ obstacles and collaborations they experienced while completing the project, as well as future applications they envisioned for the project in their own classrooms. Findings reveal common obstacles that many preservice teachers experienced throughout the composition process as well as key differences that contributed to some having a more favorable experience with the project than others. The study also identifies insights preservice teachers gained from the critical …

Within-Person Variability Of Internal And External Sexual Consent, Malachi Willis

Graduate Theses and Dissertations

Background: Sexual consent is often conceptualized as an internal willingness to engage in sexual activity, which can be communicated externally to a sexual partner. Preliminary evidence indicates that people’s sexual consent varies from day to day. Study designs that assess sexual consent at multiple time points (e.g., experience sampling methodology [ESM]) are needed to better understand the within-person variability of sexual consent; however, extant validated measures of sexual consent are not appropriate for ESM studies, which require shorter assessments due to the increased burden this methodology has on participants. As such, the goal of this dissertation was to develop valid …

Increasing Female Enrollment In High School Computer Science Education, Zenovia Brown Frazier

Graduate Theses and Dissertations

“Women have played a vital role in the field of computer science and information technology (IT), developing some of the most essential components of modern IT” (Purdue University Global, 2018). Despite their prominence and achievements in these career fields, computer science has experienced a noticeable decline in the representation of females in industry and in programs of study. This is not a phenomenon reserved for the college classroom and/or the world of work, but is a situation present across schools in the P-12 arena, to include ZBF High School. As such, the purpose of this work was to examine the …

Phenotypic Switching Of Bacterial Cells In Extreme Environments, Sudip Nepal

Graduate Theses and Dissertations

A large number of terrestrial microbial lives thrive in extremes of environmental conditions, including extremes of pressure, temperature, salinity, pH, and a combination of them. For example, all the marine biomass thrive at high hydrostatic pressure depending on depth. The temperature in the ocean can be very high near the hydrothermal vents and salinity and pH depends on the composition of salt in the surrounding areas. On the surface, hot springs, lakes and geysers provide high temperature conditions, while many places are permafrost regions with subzero temperatures. There is an emerging body of work on the viability, genomics, and metagenomics …

Phenotypic And Genotypic Studies In The Peach [Prunus Persica (L.) Batsch] And Muscadine Grape (Vitis Rotundifolia Michx.), Jennifer Anne Lewter

Graduate Theses and Dissertations

Peach: Peaches [Prunus persica (L.) Batsch] are routinely chilled to increase shelf-life. Exposure to temperatures of 5° C for two weeks can induce chilling injury (CI) symptoms, including flesh mealiness (or wooliness) and a lack of juiciness. Phenotypic data were collected on seven biparental F1 peach populations maintained at the University of Arkansas Fruit Research Station. A genome wide association study (GWAS) was performed using TASSEL 5 which identified four quantitative trait loci (QTLs) associated with expressible juice, four QTLs for mealiness, five QTLs for soluble solids, and three QTLs for fruit weight. Exploiting these genetic markers could help breeders …

New Flesh Cinema: Japanese Cyberpunk-Body Horror And Cinema As Catharsis In The Age Of Technology, Sarah Henry

Graduate Theses and Dissertations

This thesis provides a critical analysis of a specific group of films that combine the subgenres of cyberpunk and body horror which I call New Flesh Cinema. Films of this subgenre counter fears and anxieties of technological advancements by re-imagining the rise of technology and its societal effects as a transitional process through the illustration of literal and visceral depictions of the necessary alterations people will have to undergo in order to transition successfully into the new world. To contradict apocalyptic fears of advancing technology, these films offer a vision of a “New Flesh.” I argue the films share three …

Immigration And Crime In The News, 2014-2018: Do Focusing Events And Policy Windows Affect Framing?, Abigale Rongey

Graduate Theses and Dissertations

Although an abundance of literature demonstrates that immigrant populations are less crime-prone than the native-born population, the majority of Americans believe that immigration inherently threatens the security of the United States. Because Americans are not well versed in the complex issues of immigration and crime, public opinion is undoubtedly influenced by media outlets’ crafted narratives that simplify circumstances and events into easily digestible material. The current study examines how media behavior changes and responds to social and political events by examining “frames” utilized in articles that produce narratives about immigration and crime. Using content analysis of over 1,700 articles published …

Doing Latinidad While Black: Afro-Latino Identity And Belonging, Vianny Jasmin Nolasco

Graduate Theses and Dissertations

This study centers on the experiences of Afro-Latinos and how the racialization of Latino as a distinctly ‘brown’ identity—thereby excluding Blackness—shapes their identity and sense of belonging within Latino communities and spaces. Through in-depth interviews with eight Afro-Latinos, and using West and Fenstermaker’s (1995) work, ‘Doing Difference’, I find that the invisibility of Blackness, being categorized as Black, and therefore not Latino, and the negative meanings attached to Blackness may make it difficult for Afro-Latinos to come into their racial and ethnic identity and feel like they belong in Latino spaces. However, these experiences are also an important step to …

Machine Tool Communication (Mtcomm) Method And Its Applications In A Cyber-Physical Manufacturing Cloud, S M Nahian Al Sunny

Graduate Theses and Dissertations

The integration of cyber-physical systems and cloud manufacturing has the potential to revolutionize existing manufacturing systems by enabling better accessibility, agility, and efficiency. To achieve this, it is necessary to establish a communication method of manufacturing services over the Internet to access and manage physical machines from cloud applications. Most of the existing industrial automation protocols utilize Ethernet based Local Area Network (LAN) and are not designed specifically for Internet enabled data transmission. Recently MTConnect has been gaining popularity as a standard for monitoring status of machine tools through RESTful web services and an XML based messaging structure, but it …

Measuring Sexual Excitation And Sexual Inhibition In A Dutch-Speaking Sample, Malachi Willis

Graduate Theses and Dissertations

Background: Individual differences in sexual excitation and sexual inhibition are important predictors of sexual functioning. Psychometric instruments for these aspects of sexual response were originally developed separately for men (Sexual Inhibition /Sexual Excitation Scales [SIS/SES]) and women (Sexual Excitation/Sexual Inhibition Inventory for Women [SESII-W]). These measures were then adapted to function similarly in samples comprising both men and women (Sexual Inhibition/Sexual Excitation Scales-Short Form [SIS/SES-SF] and Sexual Excitation/Sexual Inhibition Inventory for Women and Men [SESII-W/M], respectively). No published study to our knowledge has administered the SIS/SES and SESII-W/M questionnaires to a sample of both women and men. In the present …

Introducing An Indigenous Non-Toxigenic Aspergillus Flavus Strain Isolated From Iraqi Corn Grains As A Bio-Control Agent To Reduce Aflatoxin Contamination In Corn Grains, Ali Almatakeez

Graduate Theses and Dissertations

Mycotoxin contamination of cereal crops, such as maize and sorghum, is a global concern because of the potential health effects on humans and animals. Although substantial research has been conducting regarding mycotoxin prevention and mitigation, little information is available about the association of mycotoxin-producing fungi with corn and sorghum grain in Iraq. Identifying and refining indigenous atoxigenic strains to reduce mycotoxin contamination of maize and sorghum has the potential to enhance the nutritional value of these grains while reducing economic losses. However, to our knowledge, this tactic has not yet been adopted by agricultural authorities and farmers in Iraq. To …

Structural Analysis Of The Multifunctional Spoiie Regulatory Protein Of Clostridioides Difficile., Blythe Emily Bunkers

Graduate Theses and Dissertations

Clostridioides (formally Clostridium) difficile is a medically relevant pathogen pertinent to infectious disease research. C. difficile is distinctly known for its ability to produce two toxins, enterotoxin A and cytotoxin B, and the propensity to colonize the mammalian gastrointestinal tract. It is known that metabolism is tightly correlated with sporulation in endospore producers such as C. difficile, but an interesting and novel regulatory relationship found by the Ivey lab has yet to be understood. The relationship explored in this study is observed between the sporulation factor, SpoIIE, which represses expression of an ABC peptide transporter, app. In this study, two …

Investigation Of The Role Of Heparin-Binding Pocket In Amyloid Fibrils Formation Of Fgf-1, I Gusti Ayu Agung Septiari

Graduate Theses and Dissertations

Human acidic fibroblast growth factor (aFGF/hFGF-1) is one of the promising molecules to be investigated to generate an in-depth understanding of the pathological mechanism of Alzheimer's disease (AD) neurodegenerative disorder characterized by the presence of amyloid fibrils. Some in vivo and human brain tissue studies proved the correlation of high-level expression of FGF-1-induced neuroinflammation and the occurrence of AD. The presence of amyloid fibrils as a hallmark of AD can be related to the generic property of the proteins to form amyloid fibrils; High level of FGF-1, in this case, may contribute to the formation of amyloid fibrils. As a …

Drinking To Cope: Effects Of Anxiety On Generation Of Self-Regulation Strategies, Lauren Hurd

Graduate Theses and Dissertations

This study sought to utilize motivational and self-regulatory processes, specifically the principle of emotional transfer (PET), to elucidate mechanisms underlying the transition from casual alcohol use to dependence in young adults with elevated anxiety. Utilizing a script-driven imagery procedure, the proposed study examined the effects of manipulated state anxiety on 1) the amount, content, and commitment to freely generated anxiety reduction strategies, and 2) the level of craving for alcohol. Young adult college students (N = 69; ages 18-24; 76.8% women) were randomly assigned to either the high (n = 35) or low (n = 34) anxiety condition. After script …

Long-Term Impact Of Child-Centered Play Therapy On Academic Achievement: A Longitudinal Examination Of Academic Success In At-Risk Elementary School Students, Brittany D. Massengale

Graduate Theses and Dissertations

This study examined the long-term impact of child-centered play therapy (CCPT) implemented through Primary Project on at-risk second-grade elementary school students. The qualifying group received ten 30-minute play therapy sessions during one academic semester during their second-grade year. In a longitudinal analysis for academic growth, MAP testing was used to determine if there was a long-term impact on both the third grade and fourth-grade years for the original qualifying students. The findings reveal implications for identification of and interventions for at-risk elementary students and CCPT as an intervention for academic achievement; specifically, reading and mathematics scores. Recommendations for future research …

Far-Right Extremism In America: A Geospatial Analysis Of Incident Distribution, Meredith Leann Lerma

Graduate Theses and Dissertations

There has been little empirical research on the spatial relationship of violent far-right extremism. Previous studies have only focused on portions of far-right violent incidents, such as homicides, or amalgamated all far-right extremist activity, including legal incidents. This study uses data from the Extremist Crime Database (ECDB) and Southern Poverty Law Center (SPLC) in a temporal frame of 2000 to 2018 to test the relationship of violent incidents against geographic and social factors. The goal is to explore the relationships between macro-level factors and violent far-right extremist incident. The research determines that the presence of hate groups, higher immigrant populations, …

Thiophene Derivative Monomers Co-Electropolymerized On Microelectrodes Within Arrays For Tailored Surface Chemistry And Electrochemical Properties, Benjamin J. Jones

Graduate Theses and Dissertations

Potentiodynamic co-electropolymerization of two thiophene derivatives, (2,3-dihydrothieno[3,4-b]dioxin-2-yl)methanol (1) and 4-((2,3-dihydrothieno[3,4-b][1,4]dioxin-2-yl)-methoxy)-4-oxobutanoic acid (2), in aqueous solutions (0.02 M total monomer, 0.05 M sodium dodecyl sulfate (SDS) and 0.1 M LiClO4) on gold microband electrodes in an array was investigated. A modified Steglich esterification reaction between monomer 1 and succinic anhydride produced monomer 2 at 93.6% yield. Seven deposition solutions of the two monomers, defined by mol% of monomer 2 (0, 25, 34, 50, 66, 75, 100) generated seven sets of polymer films by cyclic voltammetry in a specially designed cell to conserve monomer. The onset potential for monomer oxidation and total …

Assessing Differential Item Functioning In The Perceived Stress Scale, Nana Amma Berko Asamoah

Graduate Theses and Dissertations

When an item on a test functions differently for subgroups of respondents with respect to an exogenous variable (or covariate) after conditioning on the latent variable of interest, the item is said to exhibit Differential Item Functioning (DIF). The 10-item Perceived Stress Scale (PSS10) is administered to respondents via MTurk to quantify “perceived stress” and identify if items on the scale function differently for specific subgroups defined by age, sex, race, marital status, number of children, employment status and social media usage.

The purpose of this study was to compare traditional DIF detection approaches (Mantel-Haenszel, logistic regression, likelihood ratio test …

Critical Peace Pedagogy In The Social Studies: A Peace-Oriented Approach To Critical Citizen Education, Matt Dingler

Graduate Theses and Dissertations

This two-article dissertation begins by providing a conceptual argument for the inclusion of Critical Peace Pedagogy (CPP) in social studies education. CPP represents the convergence of the peace education tradition and Paulo Freire’s critical praxis. I begin by aligning CPP to the philosophy, goals, and methods of instruction espoused by critical citizen educators seeking to further democracy and human rights. To demonstrate the feasibility of CPP integration within the social studies, I provide a model classroom approach framed according to a nationally recognized instructional design model. I close with a brief exposition on the importance of peace within education’s emerging …

The Shallow End Of The Deep South: Civil Rights Activism In Arkansas, 1865-1970, Sarah Riva

Graduate Theses and Dissertations

On April 7, 1968, Governor Winthrop Rockefeller claimed that “Arkansas today stands at the threshold of leading the nation...for a better America,” The Republican Arkansas Governor spoke on the steps of the state capitol at a memorial for the beloved civil rights leader Martin Luther King, Jr. who had been assassinated three days earlier. Rockefeller’s claim that Arkansas could lead the nation came just two years after the Student Nonviolent Coordinating Committee (SNCC) formally ended its work in the state to improve racial equality. Their efforts had seen widespread acceptance of integrated public facilities, increased voter registration and more meaningful …

Earthworm Dynamics In Tallgrass Prairies In The Ozark Highlands Region Of Northwest Arkansas, Carlee Hensley

Graduate Theses and Dissertations

Tallgrass prairie was a historic and is presently a unique and endangered natural ecosystem throughout the Ozark Highlands region in the mid-southern United States. Tallgrass prairies have been disturbed for agricultural production and/or urban expansion; thus, as a result, efforts have been undertaken to reclaim areas previously used for agricultural production to mitigate the loss of tallgrass prairies. Limited research exists on earthworm dynamics in mounded tallgrass prairies or prairie restorations, particularly in the Ozark Highlands region of northwest Arkansas. The objectives of this study were to i) evaluate the effects of soil moisture regime (SMR; aquic and udic), landscape …