Digital Commons Network^™

Jeane Kirkpatrick And Neoconservatism: The Intellectual Evolution Of A Liberal, Bianca Joy Rowlett

Graduate Theses and Dissertations

Dr. Jeane J. Kirkpatrick, a leading voice in the neoconservative movement, is best known for her articulation of the Kirkpatrick Doctrine, distinctions between authoritarian and totalitarian regimes that served as the foundation for the Reagan Administration's Latin American policies. Her prominence within the neoconservative movement, her impact on foreign affairs, and her political accomplishments in a masculine environment make her an important historical figure in recent American domestic and diplomatic history. This work explores her transition from liberal democrat to neoconservative by examining her early life and educational background, her publications and critiques of American diplomacy in the 1970s, along …

Technology Mapping, Design For Testability, And Circuit Optimizations For Null Convention Logic Based Architectures, Farhad Alibeygi Parsan

Graduate Theses and Dissertations

Delay-insensitive asynchronous circuits have been the target of a renewed research effort because of the advantages they offer over traditional synchronous circuits. Minimal timing analysis, inherent robustness against power-supply, temperature, and process variations, reduced energy consumption, less noise and EMI emission, and easy design reuse are some of the benefits of these circuits. NULL Convention Logic (NCL) is one of the mainstream asynchronous logic design paradigms that has been shown to be a promising method for designing delay-insensitive asynchronous circuits.

This dissertation investigates new areas in NCL design and test and is made of three sections. The first section discusses …

Chere, Wilson Andres Borja

Graduate Theses and Dissertations

Chere is research project and a thesis exhibition installation composed of a series of drawing/paintings and short animations that explores the phenomenon of migration and the African diaspora. This exploration was originated by contrasting aspects of forced and voluntary migration in addition to Kvasnyand and Hales' idea, that "Belonging everywhere or not belonging anywhere" describes the situation among people of the African diaspora.

Through research I intersperse layers of personal history with that of my ancestors and their descendants in the Americas. As a biracial person, a self-identified Afro-descendant from Colombia, South America, I am interested in the process of …

Atomistic Simulation And Virtual Diffraction Characterization Of Alumina Interfaces: Evaluating Structure And Stability For Predictive Physical Vapor Deposition Models, Shawn Patrick Coleman

Graduate Theses and Dissertations

The objectives of this work are to investigate the structure and energetic stability of different alumina (Al₂O₃) phases using atomistic simulation and virtual diffraction characterization. To meet these objectives, this research performs molecular statics and molecular dynamics simulations employing the reactive force-field (ReaxFF) potential to model bulk, interface, and surface structures in the θ-, γ-, κ-, and α-Al₂O₃ system. Simulations throughout this study are characterized using a new virtual diffraction algorithm, developed and implemented for this work, that creates both selected area electron diffraction (SAED) and x-ray diffraction (XRD) line profiles without assuming …

Anatomies Of Melancholy, Lindsy Caitlin Barquist

Graduate Theses and Dissertations

The works presented in "Anatomies of Melancholy" explore the residual affects of pain and trauma through photography. By combining personal stories with documentary photography this body of work conveys a tension between the (in)visibility of pain and the need to speak*. Through the process of spending time with individuals and discussing their personal trauma while making photographs, I hope to acknowledge and even conserve the pain of others. Though the images do not include a narrative of the subjects' pain, they are able to communicate and begin a visual discourse. The raw and emotive images become a platform for the …

The Influence Of Collaboration In The New Product Development Process, Laurel Aynne Cook

Graduate Theses and Dissertations

Consumers expect greater involvement in the product and service offerings of firms. In response, the integration of collaboration in the new product development (NPD) process has become of interest to researchers across disciplines. Collaboration can be viewed as a "looking glass" technique, which fosters an enhanced sense of shared identity by promoting a "we" versus an "us-them" orientation. Drawing from social identity and exchange theories, the central purpose of this dissertation is understanding ways that collaboration influences perceptions during the NPD process to help shape consumers' identity with the firm.

Essay 1 employs a mixed-method approach across three studies to …

The Responses Of The Roman Imperial Government To Natural Disasters 29 Bce-180 Ce, Michael Timothy Mccoy

Graduate Theses and Dissertations

This dissertation examines the practice of imperial disaster relief between 29 BCE and 180 CE. It focuses upon both the process of disaster aid delineating how Roman emperors were petitioned for assistance, the forms disaster relief took, and the political motives individual emperors had for dispensing disaster aid. Chapter 1 provides a brief introduction to the topic. Chapter 2 outlines the scope of the study as well as the examples used to establish disaster relief in context. Chapter 3 gives an overview of euergetism and also discusses two cases of disaster assistance that pre-date the reign of Augustus. Chapter 4 …

The Role Of Trustees In A Capital Campaign At A Public Research University, Marcia Lynn Overby

Graduate Theses and Dissertations

The changing financial environment of public universities includes competing priorities for state funding. In today's economy, state appropriations for higher education do not always keep pace with institutional need. During periods of declining state revenue, universities endure budget cuts reducing state funding. When tuition dollars cannot be increased further and state appropriations are decreased or flat, public university administrators rely on fundraising to meet their mission, goals, and vision for their institutions. The fundraising program believed to produce the greatest results is a capital campaign. Large and ambitious capital campaigns can help institutions of higher education respond to decreases in …

Liminal River: Art, Agency And Cultural Transformation Along The Protohistoric Arkansas River, Leslie Walker

Graduate Theses and Dissertations

For nearly a century, ceramic vessels looted from Protohistoric Native American Graves in the Central Arkansas River Valley have raised questions about the ethnic identity of the inhabitants of the region and their relationship to their neighbors in time and space. This analysis combines careful documentation of 1198 of these vessels with excavated sherds and other data from the Carden Bottoms site (3YE0025) and adjacent rock art sites in the Arkansas River Valley to provide a context for these vessels and, in so doing, defines the Dardenne Style of artistic production. Comparing motifs, and the manner in which they are …

Electroencephalography(Eeg) Data Collection And Processing Through Machine Learning, Jayshree Desai

Graduate Theses and Dissertations

Machine learning methods are an excellent way for understanding the neural basis of human decision making. Some machine learning systems try to eradicate the need for human intuition in data analysis whereas others embrace a collective approach between humans and machines. The objective of this project is to collect Electroencephalography (EEG) signals through wireless sensors, and the process the collected signals through machine learning methods. The EEG data is collected using three EEG electrodes, each being the positive, negative and ground terminals respectively. Since the signal measures in the unit of micro-volts it needs to be amplified using amplifier circuit. …

Improving Golf Putt Performance With Statistical Learning Of Eeg Signals, Qing Guo

Graduate Theses and Dissertations

In this thesis, a machine learning based method is proposed to predict the putt outcomes of golfers based on their electroencephalogram (EEG) data. The method can be used as a core building block of a brain-computer interface, which is designed to provide guidance to golf players based on their EEG patterns. The proposed method includes three steps. First, multi-channel 1-second EEG trials were extracted during golfers' preparation of putting. Second, different features are calculated such as correlation coefficient, power spectrum density and coherence, which are used as features for the classification algorithm. To predict golfers' performance, the support vector machine …

Characteristics Of Agricultural Communications Undergraduate Programs, Morgan Michelle Large

Graduate Theses and Dissertations

This study was designed to characterize agricultural communications undergraduate programs nationwide. A total of 41 undergraduate agricultural communications programs were identified via the National ACT database, Internet searches, and previous academic program research. Objectives included creating an accounting of existing programs, a description of those programs, identifying trends in program demographics, curriculum development and identifying top programs. This study employed a census approach and used a mixed methods design. A mixed-methods survey instrument was used to collect the data. The survey included questions to gain both qualitative and quantitative data to meet this study's objectives. The quantitative data were analyzed …

Modified-Electrodes For Redox-Magnetohydrodynamic (Mhd) Pumping For Microfluidic Applications, Christena Kayl Nash

Graduate Theses and Dissertations

A new microfluidic pumping and stirring technique was demonstrated for lab-on-a-chip applications. Microfluidics was accomplished via redox-MHD, which takes advantage of a body force (F_B) that is generated when there is a net movement of ions in solution (j) in the presence of a perpendicular magnetic field (B), according to the equation F_B = j×B. In this work the movement of ions in solution was generated using electrodes modified with the conducting polymer poly(3,4-ethylenedioxythiophene) (PEDOT) rather than a redox species in solution, which can interfere with analyte detection and with biological species. …

Access Barriers To Higher Education For Rural Community College Students, Shanda Carter

Graduate Theses and Dissertations

The purpose for conducting the study was to examine factors related to rural low-income, first generation college students' obstacles to community college enrollment. The study examined barriers students overcame to attend college and focused on rural college students from two community colleges in Missouri and Arkansas. The following questions guided the research:

1.What attendance barriers did rural community college students identify as being most difficult for them to overcome?

2.Were there differences between the self-identified attendance barriers based on gender for male and female rural community college students?

3.Were there differences in attendance barriers for rural community college students based …

Facing The Wreck: Death, Optimism, And The Fragmented Form, Rachael Marie Schaffner

Graduate Theses and Dissertations

Walter Benjamin described history as a winged angel who faces backwards, staring perpetually into the past as the violent winds of destiny carry him into the future (Illuminations). Despite a western, post-enlightenment myth of eternal progress, the wreckage of human contributions to history is clearly evident in our 21st-century understanding of anthropogenic impact on global ecology. In the context of these ecological crises (and the resulting political and economic questions), postmodern novels reveal a powerful ability to imagine different ways of living and interacting with the world. This thesis traces the relationship between fragmentation, death, and liminal experiences …

Exploring Community College Faculty Involvement In Assessment Of Student Learning, Leann Sellers Caudle

Graduate Theses and Dissertations

This narrative research study was conducted to explore the experiences of full-time community college faculty members involved in assessment of student learning beyond the course level. The participants in this study were employed at public two-year institutions of higher education regionally accredited by the Higher Learning Commission that had been recognized for their work in assessment. All participants in the study were involved in program or institutional level assessment during the time of the study. The central research question this study addressed was: What factors influenced community college faculty members to become involved with assessment of student learning beyond the …

Explaining The Effects Of Pay Variation On Individual Outcomes, Samantha A. Conroy

Graduate Theses and Dissertations

Compensation is an area of research rife with debate among experts. These debates are primarily concerned with the effectiveness of pay-for-performance. The pay variation and performance relationship is a subset of this research where disagreement and inconclusive findings are common. Is pay variation conducive to higher performance or is pay compression ideal? This study contributes to the pay variation and performance debate by focusing on performance-based pay variation and addressing fundamental assumptions of prior work. Past research has treated pay variation as a proxy for allocation rules and incentive intensity. Separating these two constructs rather than confounding them provides a …

Impact Of Mathematics Computer-Assisted Instruction On English Language Learner Achievement, Christie Jacquelyn Jay

Graduate Theses and Dissertations

This quasi-experimental study examined the effect of supplemental mathematics computer-assisted instructional programs on the achievement of students in grades three and four over a two year period. This study evaluates the computer-assisted instruction (CAI) supplemental interventions through the lens of the sheltered instruction approach to teaching English Language Learner (ELL) students. The students who took part in the intervention attended nine elementary schools in one Arkansas district in the 2011-2012 and 2012-2013 school years. Data from Measures of Academic Progress (MAP) assessments were analyzed using a factorial ANOVA with pretest and two posttests over the course of two school years. …

Gender, Humor And Quality Of Life In Workplace Sitcoms: A Content Analysis Examining Agency In Post-Recession Situation Comedies, Gwendolyn Logan Bost

Graduate Theses and Dissertations

This study used content analysis to analyze gender representations in post-recession workplace sitcoms using a typology developed using Maslow's Hierarchy of needs. 100 episodes of programming were analyzed by five graduate researchers for a total of 2579 cases. Though men dominated the sample, results were dissimilar from previous findings within some of the literature on televised representations of gender. Findings indicated that need type for most commonly expressed needs were split fairly evenly by gender, but that less expressed needs were more polarized with regard to gender representation. Women also met their own needs more than men did, and had …

The Effect Of Leucine Supplementation On Biomarkers Of Mitochondrial Biogenesis And Protein Synthesis In Soleus Muscle Of Rats Fed A High-Fat Diet, Gina Davis

Graduate Theses and Dissertations

Mitochondrial dysfunction is a contributing factor to the advancement of various diseases including obesity, diabetes, and cardiovascular disease. Impairment in mitochondria brings about a diminished mitochondrial number and oxidative capacity. Leucine is known to stimulate muscle protein synthesis through transcription and translation of nuclear DNA leading to increases in mitochondrial biogenesis and fatty acid oxidation. However, the effects of leucine on anabolic factors of the mitochondrial genome, during catabolic conditions are not known. PURPOSE: To determine if leucine supplementation alters the negative effects of a high fat (60%) diet (HFD) on the mitochondrial genome by measuring the gene expression of …

Lab-Scale Experiment For Assessing The Effect Of Resuspension And Oxygenation On Sediment Oxygen Demand, Grace Richardson

Graduate Theses and Dissertations

This study examined the effects of resuspending lake sediment for different time periods in a lab-scale tank under both oxic and anoxic conditions on sediment oxygen demand (SOD) and other related sediment properties. This lab-scale study was conducted as a first step to determine if a proposed method for reducing SOD by treating sediments in lakes and reservoirs is feasible. SOD is a critical process responsible for the formation of anoxic hypolimnia in lakes and reservoirs. A reduction in SOD may delay or eliminate the onset of anoxia in the hypolimnia, preventing adverse ecosystem effects and improving water quality and …

Characterizing Nanoparticle Size By Dynamic Light Scattering Technique (Dls), Marzia Zaman

Graduate Theses and Dissertations

The Dynamic Light Scattering Technique was used to determine the size, shape and diffusion coefficient of nanoparticle. The intensity auto correlation functions of light scattered by particles in a solution were measured by using a photomultiplier tube and analyzed to get the relaxation rates for decay of intensity correlations, which correspond to the diffusion constants pertaining to the motion of the particle. In the case of nanorods there are two types of motion - translational and rotational. By dis-entangling the relaxation rates, corresponding to these two types of motion, the shape and size of nanoparticle could be characterized. These experiments, …

A Melting Pot Of Voices: Public Discourse And The Latino Immigrant Experience In The United States, Elizabeth Katherine Vammen

Graduate Theses and Dissertations

This study examines the discourses surrounding the immigrant experience in the United States to reconcile first-hand accounts of Latino immigrant experiences with the discourse prevailing in broader domains such as immigration law, public forums, non-fiction essays, and the news media. In order to break down barriers that prevent productive discussions, this analysis identifies stifling language guised under what Antonio Gramsci defines common sense rather than good sense. At the same time this study aims to deconstruct stifling language, it uses first-hand accounts from Latino immigrants to provide insight as to where the American public is not listening. By analyzing common …

Transitioning To Writing About Writing: A Consideration Of The Metawriting Teaching Approach At The University Of Arkansas, Katie Michelle Smith

Graduate Theses and Dissertations

This thesis uses case studies of six Teaching Assistants and Instructors to analyze the curricular and pedagogical shift from a writing-through-literature model to the Composition II course to a metawriting approach during the 2014 spring semester at the University of Arkansas. The administrative decision from the Program in Rhetoric and Composition to make this transition came in response to the 2007 article by Elizabeth Wardle and Douglas Downs in College Composition and Communication outlining a "Writing about Writing" approach to teaching composition.

Millennial Alumni Perceptions Of Communications Media Utilized By The Dale Bumpers College Of Agricultural, Food And Life Sciences, Amanda Nicole Anthony

Graduate Theses and Dissertations

Alumni relationship cultivation serves as the foundation of higher education and must be maintained to keep graduates and alma maters connected. To evaluate the success of communications media in reaching recent graduates, classified as Millennials, this study sought to determine Millennial alumni perceptions of media distributed by the Dale Bumpers College of Agricultural, Food and Life Sciences (Bumpers College) from 2012 through 2014. Assessed communications media included The Graduate and AR Culture magazines, The Graduate e-newsletter, tailgate and mocktail party invitations, College website, and social media presences. Active and inactive Millennial alumni (N = 20) responses were gathered through …

Identification And Development Of The Support Needs In Nematology For Arkansas Cooperative Extension Personnel, Mia Gentry

Graduate Theses and Dissertations

County extension agents are vital to the land-grant university system and are responsible for transferring current, research-based knowledge from the university to the community. In-service training allows agents the means to maintain a current, sound knowledge base. Needs identified by leading nematologists led the researcher of this study to assess if nematology education was a topic that warranted in-service training development for Arkansas Cooperative Extension Service (CES) agents. The researcher also assessed agents' comfort level with job related technology. Of the respondents, 67% identified general knowledge of plant parasitic nematodes necessary to meet the needs of their clientele. Findings from …

A Mixed Methods Approach Of Communication Campaign Development And Assessment: Identifying The Needs Of An Audience And Determining The Value In Evaluation, Tara Johnson

Graduate Theses and Dissertations

The two articles presented in this thesis used both quantitative and qualitative research methods to examine two distinct stages of communication campaigns: research and evaluation. In the quantitative study, students (n = 440) at the University of Arkansas were surveyed to determine their perceptions of the Arkansas Water Resources Center (AWRC), water resources, and water issues. A questionnaire was developed from an existing instrument, reviewed by a panel of experts, pilot tested, and revised. The researchers found participants were most aware (M = 3.23, SD = 1.14), concerned (M = 4.07, SD = 0.86), and interested (M = 4.10, SD …

Disruption Response Support For Inland Waterway Transportation, Jingjing Tong

Graduate Theses and Dissertations

Motivated by the critical role of the inland waterways in the United States' transportation system, this dissertation research focuses on pre- and post- disruption response support when the inland waterway navigation system is disrupted by a natural or manmade event. Following a comprehensive literature review, four research contributions are achieved. The first research contribution formulates and solves a cargo prioritization and terminal allocation problem (CPTAP) that minimizes total value loss of the disrupted barge cargoes on the inland waterway transportation system. It is tailored for maritime transportation stakeholders whose disaster response plans seek to mitigate negative economic and societal impacts. …

Explaining Implicit And Explicit Affective Linkages In It Teams: Facial Recognition, Emotional Intelligence, And Affective Tone, Mary M. Dunaway

Graduate Theses and Dissertations

Over 80 percent of task work in organizations is performed by teams. Most teams operate in a more fluid, dynamic, and complex environment than in the past. As a result, a growing body of research is beginning to focus on how teams’ emotional well-being can benefit the effectiveness of workplace team efforts. These teams are required to be adaptive, to operate in ill-structured environments, and to rely on technology more than ever before. However, teams have become so ubiquitous that many organizations and managers take them for granted and assume they will be effective and productive. Because of the increased …

Overcoming Roadblocks In Introducing Virtual World Technology To High Schools, Casey Dylan Bailey

Graduate Theses and Dissertations

The EAST (Environmental And Spatial Technology) Initiative is a non-profit educational organization that provides students in over two hundred schools in eight states with access to advanced computing technologies for the purpose of enabling students to develop technical skills early and to produce solutions to local community problems. Although many high-end technologies are available through EAST, they are desktop solutions that individual students use and there are none that enable students within a school or between schools to collaborate.

This thesis is a saga that documents the identification and removal of many roadblocks to introducing a 3D multi-user virtual simulation …