Digital Commons Network^™

Rna Sequencing In The Development Of Cancer-Cachexia, Thomas Allen Blackwell

Graduate Theses and Dissertations

Introduction: Cancer is a major public health problem in the U.S. and the world. In 2013 there were an estimated 1,660,290 new cases of cancer in the U.S. Cancer-Cachexia (CC) is a common effect of many cancers, and is directly responsible for 20-40% of cancer-related deaths. The mechanisms that control the development of CC are not well understood. Most investigations of CC focus on the post-cachectic state and do not examine the progression of the condition. The purpose of this study was to utilize RNA sequencing to analyze transcriptomic alterations throughout the progression of CC. Methods: Lewis Lung Carcinoma cells …

During The Wait: A Phenomenological Study On Denied Social Security Dissability Applicants Awaiting Appeal, Stefanie A. Ford

Graduate Theses and Dissertations

The purpose of the present study is to investigate the essence of the experience of individuals who were denied Social Security Disability benefits and who sought the appeals process. In the first round, five semi-structured face-to-face interviews allow the participants to share their thoughts, feelings, and actions taken and, if any, what life changes occurred during the appeals process. Data analysis using phenomenological methods create textural-structural descriptions from which, in a second interview, applicants choose to confirm, edit, or add to their analyzed interviews. The findings present as seven major themes that describes the phenomenon. They are: (a) procedural unfairness …

Enforcing Database Security On Cloud Using A Trusted Third Party Based Model, Victor Fuentes Tello

Graduate Theses and Dissertations

Cloud computing offers a considerable number of advantages to clients and organizations that use several capabilities to store sensitive data, interact with applications, or use technology infrastructure to perform daily activities. The development of new models in cloud computing brings with it a series of elements that must be considered by companies, particularly when the sensitive data needs to be protected. There are some concerns related to security that need to be taken into consideration when a service provider manage and store the data in a location outside the company. In this research, a model that uses a trusted third …

Mechanisms And Implications Of Identity Hybridization In Online Advertorials, Christopher Lee Borntrager

Graduate Theses and Dissertations

This study analyzes the ways corporate-sponsored image advertorials published in online platforms construct identities for their sponsor. By analyzing 6 advertorials from The Guardian Online as well as a user comment thread on the same website using critical linguistic analysis and conversation analysis, respectively, this study suggests that the identities constructed in corporate-sponsored advertorials are a hybridized form, claiming both the goals of a corporation and the social legitimacy of a professional activist. To construct these hybrid identities, the advertorials in this sampling used specific linguistic strategies to demonstrate agency with regard to a specific social issue while seeming to …

Characterization Of The Relationships Between Soybean Yield, Trifoliolate Leaf Chloride Concentration, And Cultivar Chloride Inclusion/Exclusion Rating, Dillon Cox

Graduate Theses and Dissertations

Chloride toxicity is recognized as yield limiting problem in soybean [Glycine max (L.) Merr.] production. Limited information is available to accurately diagnose and manage Cl toxicity. The only recommendation for Cl toxicity management is to plant an excluder cultivar, however the cultivar Cl sensitivity rating system (excluder, includer, and mixed) does not appear to capture the variability in cultivar Cl tolerance. The objectives of this research were to i) develop critical tissue-Cl concentrations in which yield loss occurs for excluder and includer cultivars and ii) investigate the variability in cultivar Cl ratings. A study was conducted across five site-years using …

An Experimental Test Of The Effects Of Social Conflict On Posttraumatic Stress Symptoms And Alcohol Craving, Courtney Elaine Dutton

Graduate Theses and Dissertations

While substantial efforts have been devoted to understanding links between posttraumatic stress disorder (PTSD) and hazardous alcohol use, relatively little research has examined possible third factor variables that may maintain this comorbidity. Social conflict is common among people suffering from posttraumatic stress symptoms (PTSS), hazardous alcohol use, and the combination of these two conditions, and is thought to maintain both PTSS and hazardous alcohol use. Fortunately, social conflict is malleable, but there is little evidence to date examining social conflict as a common maintaining factor. The current study investigated the effect of social conflict on state PTSS, alcohol craving, and …

Experiment-Based Quantitative Modeling For The Antibacterial Activity Of Silver Nanoparticles, Mohammad Aminul Haque

Graduate Theses and Dissertations

Silver (Ag) has been well known for its antimicrobial activity for a long time. Recent research showed the potential of Ag nanoparticles as emerging antimicrobial agents. However, little quantitative analysis has been performed so far to decipher the mechanism of interaction between nanoparticles and bacteria. Here, a detailed analysis based on kinetic growth assay and colony forming unit assay has been carried out to study the antimicrobial effect of Ag nanoparticles against Escherichia coli (E. coli) bacteria. It was observed that the presence of Ag nanoparticles increased the lag time of bacterial growth while not affecting the maximum growth rate …

Investigating The Impact Of Corporate Social Responsibility On Conative Loyalty In Collegiate Sports, Sunyoong Kim

Graduate Theses and Dissertations

Corporate social responsibility (CSR) has been an important topic in business and other disciplines due to its various benefits for both society (e.g., contributing to public health, safety, education, human rights, community well-being, environment) and organizations (e.g., attracting new customers, enhancing sales of products, developing positive brand image or reputation) (Inoue, 2011; Kim, 2015; Kotler & Lee, 2005; Smith & Westerbeek, 2007). Many consumers expect corporate organizations to demonstrate their commitments and contributions to the community (Marin, Ruiz, & Rubio, 2009; Walker & Heere, 2011). Thus, it is important to satisfy their expectations through social activities since consumers are considered …

Curricular Analysis Of The University Of Arkansas Composition I Pilot Course: Engl 1013, Community Ethnography, Morgan Lindsay Scholz

Graduate Theses and Dissertations

This thesis analyzes a new first-year writing course that is under consideration for implementation as the standard Composition I course at the University of Arkansas. The course utilizes an ethnographic approach to teaching critical writing skills to students. This thesis presents evaluation through a metacognitive lens and explores the course through a case study approach. This thesis also examines the expectations and concluding reflections of three stakeholder groups: students, instructors, and administrators.

Understanding Discourse Transition, Taylor Weeks

Graduate Theses and Dissertations

This work is intended to explore and analyze the process of transition from one discourse to another different discourse.

An Investigation Of Sport Sponsorship Antecedents And Outcomes Through Levels Of Sponsor Prominence, Benjamin Colin Cork

Graduate Theses and Dissertations

Currently, global sport sponsorship is a multi-billion dollar industry that continues to show strong year-to-year growth (IEG, 2016). Additionally, the current body of sport sponsorship literature has reported the effects of salient attitudinal and behavioral constructs on sponsorship effectiveness. For example, previous studies have indicated that the perceived sincerity and attitude toward a sponsor do positively effect a consumer's behavioral intentions toward a sponsor (Speed & Thompson, 2000; Biscaia, Correia, Rosado, Ross, & Maroco, 2013). Therefore, the purpose of this study is to measure consumer attitudes and behavioral intent toward sponsor, through experimental design, when exposed to one of three …

Developing A Competency-Based Framework To Guide Elementary School Teachers' Efforts In Helping Bullied Children, Samantha Gregus

Graduate Theses and Dissertations

The current study aimed to develop a competency-based framework designed to assist elementary school teachers in their efforts to help bullied children. Drawing from extant research, Gregus and Cavell (2017) created an initial draft of the framework that contained 25 components representing a mix of knowledge, attitudes, and skills. In Study 1, I obtained input on the framework from practicing elementary school teachers (n = 26) and researchers who study school bullying (n = 14). Teacher input was gathered via a series of focus groups and researchers responded using an online survey. Both teachers and researchers viewed the framework positively …

Assessing Patient Perceptions Of Self-Care: Examining Chronic Disease In An Underserved Rural Area, Somer Leigh Overshon

Graduate Theses and Dissertations

The Affordable Care Act of 2010 mandated healthcare reform in the United States by requiring insurance coverage for more Americans. Further, the law deemed healthcare providers, communities and individuals throughout the nation were responsible for fighting chronic disease and escalating healthcare costs. Preventive care and self-care have been cited as low-cost options for initiating change in the American population by helping individuals have access, information and resources to make better healthcare choices and manage their chronic diseases. The purpose of this ethnographic study was to identify the perceptions of self-care from patients living with chronic disease in an underserved, rural …

Statistical Movement Classification Based On Hilbert-Huang Transform, Shanqi Sun

Graduate Theses and Dissertations

The goal of this project is to introduce an automatic movement classification technique of

finger movement signals using Hilbert-Huang Transform (HHT). Due to the nonlinear and

nonstationary processing behavior, movement signals are analyzed with the Hilbert-Huang

Transform (HHT). The slope of auto-correlation function and mean of frequency from first

three Intrinsic Mode Functions (IMFs) was used as feature parameters for each category.

Finally, performing support vector machine (SVM) for pattern classification completes clas-

sifying types of finger movement. According to the records of 669 trial samples of two types

of finger movement signals (thumb and pinky), average accuracy is 93.28%. …

Job Satisfaction In The Digital Age: A Qualitative Study Of Social Responsibility And Burnout In Local Television News Reporters, Christi Welter

Graduate Theses and Dissertations

This is an exploratory study of job satisfaction, burnout, and social responsibility among local television news reporters with three years of experience or less. Through in-depth qualitative interviews, this study applied existing theory while exploring the factors that influence job satisfaction and burnout in local television news reporters. This study explored whether local television journalists feel they are able to meet the normative professional standards outlined in the social responsibility theory as their work demands increase with rise of digital media and one-man band expectations. The job satisfaction levels of the participants in this study varied. Those with higher job …

Making Sense Of Nonsense, Parker Boales

Graduate Theses and Dissertations

A paradox of simultaneous sincerity and humor, Making Sense of Nonsense attempts to identify deficient systems upon which we rely daily. Systems of logic, text, and visual language are all rife with flaws solely because their source--humankind--is irrevocably bound to error. This is not to say that these systems cannot be improved; on the contrary, a rigorous investigation of these systems allows one insight into their mechanics to the end that one endlessly questions the very foundation of the mode of communication being used. Materials and discarded objects such as vintage tools, automotive parts, spray paint, string, furniture, plastic, S&M …

To The Moon And Back, Michael Tyler Pennekamp

Graduate Theses and Dissertations

Almost fifty years after the Apollo 11 mission, the moon landing remains one of humankind’s most remarkable technological achievements. On the lunar surface, the Eagle’s flight crew left behind an American flag, mementos honoring those who lost their lives in the quest for such an achievement, and a plaque reading, “Here men from the planet Earth set foot upon the moon. July 1969 A.D. We came in peace for all mankind.” Despite overwhelming proof of this achievement—radio transmissions, photographs, film, rock and soil samples—a sizable minority of Americans continue to view the Apollo 11 moon landing as a hoax. To …

Off The Grid, Matthew Owen Buffington

Graduate Theses and Dissertations

Off the Grid explores the messy relationship between public and private perceptions of our urban spaces, especially the tensions created when lived experience runs up against the physical and conceptual networks of cities: street grids, construction tape, and property lines. Incorporating different modes of spatial representation, from cartographic diagrams to isometric illustrations and Renaissance perspectives, this exhibition examines the role drawing plays in how we conceptualize the divisions and definitions of everyday space. The drawings engage the often overlooked detritus of city life, from layers of old graffiti to overgrown dirt piles and unmoored electrical wiring, that complicate our understanding …

Total N-Nitrosamine Precursor Adsorption With Carbon Nanotubes: Elucidating Controlling Physiochemical Properties And Developing A Size-Resolved Precursor Surrogate, Erin Needham

Graduate Theses and Dissertations

As drinking water sources become increasingly impaired with nutrients and wastewater treatment plant (WWTP) effluent, formation of disinfection byproducts (DBPs) – such as trihalomethanes (THMs), dihaloacetonitriles (DHANs), and N-nitrosamines – during water treatment may also increase. N-nitrosamines may comprise the bulk of the chronic toxicity in treated drinking waters despite forming at low ng/L levels. This research seeks to elucidate physicochemical properties of carbon nanotubes (CNTs) for removal of DBP precursors, with an emphasis on total N-nitrosamines (TONO).

Batch experiments with CNTs were completed to assess adsorption of THM, DHAN, and TONO precursors; physiochemical properties of CNTs were quantified through …

Trihalomethane, Dihaloacetonitrile, And Total N-Nitrosamine Precursor Adsorption By Carbon Nanotubes: The Importance Of Surface Oxides And Pore Volume, Erin Needham

Graduate Theses and Dissertations

As drinking water sources become increasingly impaired, enhanced removal of natural organic matter (NOM) may be required to curb formation of disinfection byproducts (DBPs) upon chlor(am)ination. While carbon nanotubes (CNTs) can adsorb NOM, their properties for DBP precursor adsorption have not been elucidated. Nine types of CNTs were assessed for trihalomethane (THM), dihaloacetonitrile (DHAN), and total N-nitrosamine (TONO) precursor adsorption. Batch isotherm experiments were completed with lake water and, to simulate an impaired condition, effluent from a wastewater treatment plant (WWTP). Adsorption varied with CNT type and dose, with TONO precursors having the highest percent removals from WWTP effluent (up …

Rock Art Management And Landscape Change: Mixed Field Assessment Techniques For Cultural Stone Decay, Kaelin M. Groom

Graduate Theses and Dissertations

As tourism continues to grow as one of the world’s most ubiquitous markets, the development and promotion of non-invasive techniques for cultural stone decay analysis and landscape change are vital to establishing conditional base-lines to best aid cultural heritage management (CRM) efficacy. Using rock art as a medium, this dissertation presents three independent case studies employing the Rock Art Stability Index (RASI) and repeat photography to explore the merits of mixed rapid field assessment techniques in relation to CRM and heritage tourism. While rock art is only one example of irreplaceable world heritage resources, examining how they decay and what …

Dinner, Daniel Reuben Baskin

Graduate Theses and Dissertations

Dinner is an interactive exhibition which presents appropriated works of art collected and hung in a clustered salon style, as well as a fully realized recreation based on a 16th century Dutch banquet still-life, which presents guests with meats, cheeses, fruits, vegetables, breads, and wine to share and imbibe. Dining ware is provided for guests at the entrance to the exhibit, as are suggested topics of conversation, which are presented on slips of paper for guests to carry with them throughout their time in the space. Within the collection of wall-mounted works are references to ancient Greek and Roman marble …

Implementation Of A Standards-Based Grading Model: A Study Of Parent And Teacher Perceptions Of Success, Amber Dee Wheeler

Graduate Theses and Dissertations

The purpose of this study is to explore the perceptions of parents and teachers regarding the success of a standards-based grading initiative in meeting its goals. Furthermore, findings from this study will be used to inform decisions made in future grade level implementations. Standards-based grading meets all criteria for a problem of practice. The literature situates standards-based grading as a high impact strategy that can affect the entire system. This mixed-methods study will be used to determine practical changes for a school implementing standards-based grading. This study found parents positively responded to the change, and parents understood their child’s current …

Climbar - An Arkansas Rock Climbing Documentary, Daniel Alan Henkel

Graduate Theses and Dissertations

The goal of this thesis project, ‘ClimbAR’ - a rock climbing documentary - is to tell the story of a fringe sport/outdoor activity in the state of Arkansas. The history of the sport has been passed down primarily by word of mouth and contained within a small, tight knit group of Arkansas rock climbers since its humble beginnings in the 1980s. Though many of the original climbers in the state have since moved on, a new generation of adventurers have taken the reins. This film focuses on the newest generation of Arkansas rock climbers.

Like many climbers in the state, …

Discovering The Secrets Of The Annex: The Scenic Design Of "The Diary Of Anne Frank", Kiah Kayser

Graduate Theses and Dissertations

This thesis describes the analysis, design, and implementation of University of Arkansas’ production of The Diary of Anne Frank. The entire process is explored and analyzed with a specific focus on the challenges the production staff faced along with creative victories that we shared when creating this production. This document comments on and explores how the facts of the story and principal location of The Diary of Anne Frank influenced our more abstracted world of the play.

This thesis includes the essential design documents and support materials used in the creation of the scenic design of The Diary of Anne …

Modern Palestinian Filmmaking In A Global World, Sarah Frances Hudson

Graduate Theses and Dissertations

This dissertation employs a comprehensive approach to analyze the cinematic accent of feature length, fictional Palestinian cinema and offers concrete criteria to define the genre of Palestinian fictional film that go beyond traditional, nation-centered approaches to defining films. Employing Arjun Appardurai’s concepts of financescapes, technoscapes, mediascapes, ethnoscapes, and ideoscapes, I analyze the filmic accent of six Palestinian filmmakers: Michel Khleifi, Rashid Masharawi, Ali Nassar, Elia Suleiman, Hany Abu Assad, and Annemarie Jacir. After a detailed examination of each filmmaker’s body of work, I examine the trends that occur across the genre that have the greatest impact on the Palestinian filmic …

Service Consistency In Vehicle Routing, Kunlei Lian

Graduate Theses and Dissertations

This thesis studies service consistency in the context of multi-period vehicle routing problems (VRP) in which customers require repeatable services over a planning horizon of multiple days. Two types of service consistency are considered, namely, driver consistency and time consistency. Driver consistency refers to using the fewest number of different drivers to perform all of the visits required by a customer over a planning horizon and time consistency refers to visiting a customer at roughly the same time on each day he/she needs service. First, the multi-objective consistent VRP is defined to explore the trade-offs between the objectives of travel …

Assessment Of The Arkansas Horse 4-H Program: Perspectives From Multiple Stakeholders, Fawn Lee Kurtzo

Graduate Theses and Dissertations

Assessment of the Arkansas horse 4-H program utilized stakeholders’ perceptions to describe inputs, outcomes, preferences and impacts provided by the Arkansas Cooperative Extension Service. Stakeholders’ perceptions were captured through three studies. Studies included the following: a pre- and post-test evaluation of the 2016 summer horse camp, purposive interviews with county agents (n = 6), volunteer leaders (n = 4), and parents (n = 4) of horse 4-H clubs, and a statewide survey provided to Extension staff (n =26) and volunteer leaders (n = 28) affiliated with horse 4-H clubs.

The 2016 summer camp evaluation found the goals to improve horsemanship, …

Rhythm And Movement: The Lighting Design For "Eurydice", A Living Poetic Metaphor, Emily Rachel Clarkson

Graduate Theses and Dissertations

This thesis will delve into the historical context, analysis, design process and execution of the lighting design for the University of Arkansas’ production of Sarah Ruhl’s Eurydice. Special care will be taken to document an exploration of the challenges faced by this production during research, design meetings as well as throughout the implementation of this design. This document will seek to answer the questions: how does one design the lighting for a show that is in and of itself a metaphor? When each scene requires its own striking visual, how does the designer weave the play together so that it …

Thylakoid Protein Targeting/Insertion By A Signal Recognition Particle In Chloroplasts, Priyanka Sharma

Graduate Theses and Dissertations

Protein targeting is a fundamental cellular process that directs proteins from their site of synthesis to the site where they function. The signal recognition particle (SRP) dependent targeting pathway is conserved in both eukaryotes and prokaryotes where it co-translationally targets polypeptide chains emerging from ribosomes to the endoplasmic reticulum (eukaryotes) or cytoplasmic membrane (prokaryotes). A structurally unique form of SRP is found in chloroplasts where it functions to post-translationally bind and target a subset of integral thylakoid membrane proteins, the light harvesting chlorophyll binding proteins (LHCPs). Mature LHCPs bind chlorophyll a/b and function in photosynthetic light capture. Like many other …