Digital Commons Network^™

Reactions To Gulf War I And Gulf War Ii In American And Iraqi Cinema And Theatre: The Quest For A Global Utopia, Tajaddin Salahaddin Noori

Graduate Theses and Dissertations

Many American and Iraqi cultural reactions to Gulf War I and Gulf War II, including the texts selected for this story, expressed the dystopian consequences of these wars. However, this study focuses on exploring the utopian dimensions of the selected texts and investigates how these texts attempt to reconcile both sides of the conflict and produce visions toward a global utopia. Significantly, this study represents the visions toward a global utopia as a series of visions toward oneness. That is, oneness of human beings over otherness, oneness of different nation states under one global community, and oneness of cultural productions’ …

Secure And Efficient Models For Retrieving Data From Encrypted Databases In Cloud, Sultan Ahmed A Almakdi

Graduate Theses and Dissertations

Recently, database users have begun to use cloud database services to outsource their databases. The reason for this is the high computation speed and the huge storage capacity that cloud owners provide at low prices. However, despite the attractiveness of the cloud computing environment to database users, privacy issues remain a cause for concern for database owners since data access is out of their control. Encryption is the only way of assuaging users’ fears surrounding data privacy, but executing Structured Query Language (SQL) queries over encrypted data is a challenging task, especially if the data are encrypted by a randomized …

Nutritional Supplementation And Skeletal Muscle Health In Chronic Diseases, Hexirui Wu

Graduate Theses and Dissertations

Prevalence of chronic diseases in the United States keeps increasing in recent years. There are approximately four in ten adults having chronic diseases in America. Chronic diseases include obesity, aging, heart diseases, cancer and many others. This thesis mainly focuses on obesity and aging. Skeletal muscle performance is impaired in obesity and aging conditions. One common reason causing this could be higher fat mass and lower muscle mass. However, there is no study showing what pathways are involved in the imbalance of body composition. Therefore, the first objective of the thesis is to determine gene expression of selected pathways in …

Mapping Quantitative Trait Loci For Peach (Prunus Persica) Resistance To Xanthomonas Arboricola Pv. Pruni (Xap) And Determining The Diversity And Virulence Of A United States Xap Collection, Maxwell Vonkreuzhof

Graduate Theses and Dissertations

Bacterial spot, caused by the bacterium Xanthomonas arboricola pv. pruni (Xap), is a threat to the peach [Prunus persica (L.) Batsch], Japanese and European plum (P. salicina L. and P. domestica L.), and tart and sweet cherry (P. cerasus L. and P. avium L.) industries. Markers for fruit resistance to bacterial spot have been developed however, markers associated with foliar resistance have yet to be developed. A total of 130 progeny and 13 parents (n=143) were evaluated for foliar and fruit Xap resistance in 2013, 2014, and 2015, and 162 progeny and eight parents (n=170) in 2017 and 2018 as …

College Student Changing Attitudes And Beliefs About The Nature Of And Teaching Of Mathematics And Science, Stephen R. Skinner

Graduate Theses and Dissertations

With an estimated 17.3 million STEM jobs in the US, there exists a need for a STEMready workforce that is science literate with positive attitudes and beliefs toward the learning and teaching of mathematics and science (Graf, Fry, & Funk, 2018). However, the US has seen a steady decline in the number of high school students interested in STEM-related fields with only 16% of interested students with proven proficiency in mathematics and science and are ready to enroll in college STEM programs (ACT, 2017; Osborne & Dillon, 2008; Stake & Mares, 2001). With the decline in student interest, the US …

Evidence-Based Social-Emotional Learning And Its Influence On Teachers’ Perception Of Student Behavior: An Analysis Of Ruler And The Anchors Of Emotional Intelligence, Brent B. Harrington

Graduate Theses and Dissertations

This study was designed to assess the extent by which an evidence-based Social-Emotional Learning (SEL) program influenced teachers’ perception of students’ behavior in a small and diverse PK – 8 school district in Westchester County, NY. Specifically, the researcher evaluated the Anchors of Emotional Intelligence and the RULER framework to determine its impact on school climate as viewed from the perspective of staff in the district. Prior to commencing the study, the researcher recognized the negative staff narrative around student behavior in the district as a significant problem of practice that was observable, actionable and high leverage.

This mixed-methods study …

A Comparative Ecological Study Of Limestone And Dolomite Glades In The Ozark Mountains Of Northwest Arkansas, Brittney Booth

Graduate Theses and Dissertations

Glades are one of the many habitats that exist in the Arkansas Ozarks and contribute to the overall biodiversity of the state of Arkansas. For this study, five dolomite glades and five limestone glades in the Ozarks of northwest Arkansas were studied from March to October in the years 2017 and 2018 to determine the similarities or differences that might be present. One hundred and fifteen vascular plant taxa were documented in the dolomite glades and one hundred and three vascular plant taxa were documented in the limestone glades. Forty-six vascular plant taxa were unique to the dolomite glades and …

Who Is Riding The Bus And How Does It Impact Student Sleep, Attendance, Discipline, Mental Health, And Achievement?, Curtis Neil Hicks

Graduate Theses and Dissertations

The purpose of this research study was to determine the relationship between morning transportation mode choice, sleep, and factors that impact achievement for students in grades 9-12 at Sleepy Valley High School. The study also examined the relationship between race and/or socioeconomic status and morning transportation mode choice to determine to what extent, if any, students from low socioeconomic backgrounds and minority populations are disproportionally affected by the district’s pupil transportation system.

Data related to morning transportation mode choice, factors that impact mode choice, student sleep, and mental health were collected through a 12 question Student Transportation Survey. Each survey …

A Study Of Optical Nonlinearities At The Single-Photon Level For Quantum Logic, Balakrishnan Viswanathan

Graduate Theses and Dissertations

In this dissertation, we shall focus on theoretically studying quantum nonlinear optical schemes to construct a conditional phase gate at the single-photon level. With an aim to develop analytical models, we shall carry out a rigorous quantized multimode field analysis of some of these schemes involving only the interacting field operators. More specifically, we shall first study the three-wave mixing process involving two single-photons in a second-order nonlinear medium (x(2)) under two different cases viz. when the photons are traveling with equal velocities and when they are traveling with different velocities, and explore the possibility of using them for building …

A Virtual Space Vectors Based Model Predictive Control For Three-Level Converters, Waleed Saad S. Alhosaini

Graduate Theses and Dissertations

Three-phase three-level (3-L) voltage source converters (VSC), e.g., neutral-point clamped (NPC) converters, T-type converters, etc., have been deemed to be suitable for a wide range of medium- to high-power applications in microgrids (MGs) and bulk power systems. Compared to their two-level (2-L) counterparts, adopting 3-L VSCs in the MG applications not only reduces the voltage stress across the power semiconductor devices, which allows achieving higher voltage levels, but also improves the quality of the converter output waveforms, which further leads to considerably smaller output ac passive filters.

Various control strategies have been proposed and implemented for 3-L VSCs. Among all …

Determination Of Critical Y-Leaf Potassium Concentrations Across Reproductive Growth Stages For Direct-Seeded Delay-Flooded Rice, Chandler Edwin Gruener

Graduate Theses and Dissertations

Rice (Oryza sativa L.) grain yield can be limited by potassium (K) deficiency on soils low in exchangeable K. Visually diagnosing K deficiency during early reproductive growth is not easily done and the interpretation of traditional tissue analysis is limited to select growth-stages. Our primary focus was to define continuous critical Y-leaf-K concentrations during reproductive growth for the production of maximal grain yield. A secondary objective was to examine Y-leaf sap-K concentration, measured using a handheld device, as a rapid in-field method of monitoring rice plant K nutrition. The Y-leaf is defined as the uppermost fully extended leaf with a …

Examination Of Language Skills In Children Who Attend Head Start Programs, Madilyn Littlefield

Graduate Theses and Dissertations

Socioeconomic status and poverty can greatly affect child development and have lasting impacts throughout life. Children who are raised in a low socioeconomic status homes may experience limited parent sensitivity, limited parental engagement, and limited access to stimulating materials. These factors may also limit opportunities to experience rich language and literacy experiences which can negatively impact development of emergent literacy skills and later educational growth. To reduce the effects of poverty on school readiness, income-based childcare programs allow families access to affordable early school readiness opportunities that are developmentally appropriate. Head Start programs are designed to facilitate child development, provide …

Born-Again On Sundays: Exploring Narratives Of Belief And Performances In A Belizean Methodist Church, Katharine Serio

Graduate Theses and Dissertations

If you are only at church services on Sunday and do not actively practice your religious faith every day, are you “born again” every day? Reverend Rebecca Lewis of Wesley Methodist Church in a small town in Belize preaches active participation in the church and encourages her congregation to attend all religious events, pray rigorously, and read the Bible actively, but how does the congregation listen to her and react to her sermons? “Born-Again on Sundays” is an ethnographic account that draws on anthropological theories of belief and vernacular religion, performance and narrative, and poverty and reflexivity to explore the …

Follow The Leader: A Followership Perspective In Restaurants, Courtney Troxtel

Graduate Theses and Dissertations

While leadership has been a popular research topic in the hospitality industry, followership has a limited amount of research contributing to the body of knowledge. Followers are a key aspect of the leadership equation; therefore, it is important to understand their role in the industry. The purpose of this study is to explore the leadership theory of followership in restaurants to examine the connections between followership training, voice behavior and employee turnover rates. The study adds to the existing knowledge of followership in the hospitality industry and provides ideas for future research and practical implications.

A descriptive survey was made …

"Untrain Their Brains For Creativity To Feel Normal": A Case Study Of Four Early Career Secondary English Teachers' Perceptions And Practices For Cultivating Creativity, Jennifer A. Jennings

Graduate Theses and Dissertations

Creativity in the context of teaching and learning has renewed its popularity in today’s social discourse. Journalists, business leaders, economists, government officials, entrepreneurs, and lay people are calling for those in P-20 education to produce workers and citizens with skills that allow them to be flexible and critical thinkers, as well as innovative problem-solvers. This qualitative, multiple case study examined early-career English teachers’ conceptual understanding of and classroom practices related to cultivating creativity skills among students. Data were gathered through opening interviews, classroom teaching observations, closing interviews.

This study culminated in four major findings. The first was that the teachers …

Chefs' Perceptions Of Zero Waste Cooking In Restaurants, Josephine Reardon

Graduate Theses and Dissertations

The purpose of this study is to examine chefs’ perceptions and practices relative to current and potentially future efforts to decrease food waste. Through qualitative inquiry, this research aims to identify food waste reduction practices in Northwest Arkansas restaurants; chef’s perceptions of these practices and zero waste cooking; the impact these practices have on successfully implementing sustainability; and the biggest challenges in reducing food waste in restaurants. The results of this study will assist chefs and restaurant owners by providing guidance on practices easily utilized in restaurants currently.

An interview protocol, with five sections, was conducted with ten chefs at …

Area Efficient Device Optimization For Esd Protection In High Speed Interface Ics, Dan Thomas Jarard

Graduate Theses and Dissertations

Electrostatic discharge (ESD) protection is considered as a vital step in integrated circuit (IC) manufacturing process. IC chips are unable to overcome the effects of transient events without adequate discharge protection. Recent trend in the industry has seen the incorporation of system level ESD protection within the IC chip. Incorporating system level on-chip ESD protection often increases cost, degrades circuit performance and consumes layout area which could otherwise be used for improving the circuit performance. These design challenges could be easily overcome if the parasitic components in a circuit were used for ESD protection. Despite the various design challenges, on-chip …

Development Of The Caregiver-Child Auditory Skills Tracking (Cast) Scale: A Pilot Study On Caregiver Implementation Via International Telepractice, Elizabeth Ocampo-Roman

Graduate Theses and Dissertations

Parent engagement is a key component during early language development for all children, but particularly for a child with hearing loss. Through the application of technology-based models of service delivery such as telehealth, researchers have found an increase in parent-child engagement during auditory-verbal therapy (AVT) sessions due to the physical absence of the provider and parents becoming the primary language facilitators. However, current measures of parent-child interactions do not have a coding system to monitor facilitation of auditory skills. This present study will discuss the development of the Caregiver-Child Auditory Skills Tracking (CAST) Scale to track progress of caregiver implementation …

Data Breach Consequences And Responses: A Multi-Method Investigation Of Stakeholders, Hamid Reza Nikkhah

Graduate Theses and Dissertations

The role of information in today’s economy is essential as organizations that can effectively store and leverage information about their stakeholders can gain an advantage in their markets. The extensive digitization of business information can make organizations vulnerable to data breaches. A data breach is the unauthorized access to sensitive, protected, or confidential data resulting in the compromise of information security. Data breaches affect not only the breached organization but also various related stakeholders. After a data breach, stakeholders of the breached organizations show negative behaviors, which causes the breached organizations to face financial and non-financial costs. As such, the …

The Postsecondary Enrollment Of Black American Men: The Perceived Influence Of Environmental Factors, David V. Tolliver, Iii

Graduate Theses and Dissertations

In the United States, there has been a consistent under-enrollment of Black American men who have enrolled and graduated from four-year colleges and universities. The result of this lack of educational attainment is problematic, as it can be seen in lower employment rates, higher under-employment rates, higher rates of incarceration, poorer health, and even a lower quality life. Institutional leaders and policymakers have struggled to find solutions for increasing the participation of Black American men with largely mixed results. Most of these programmatic attempts, however, have been limited in their approach and have not taken into account family and informal …

Perception Of County Extension Agents’ Organizational Fit After Participating In The Mentoring Component Of The Cooperative Extension Service Onboarding Program, Angela Blacklaw-Freel

Graduate Theses and Dissertations

The purpose of this study is to determine the perception employees of the Arkansas Cooperative Extension Service (CES) after participating in a mentoring program. The CES implemented an onboarding program in 2010 which included a yearlong mentoring component for county extension agents because they were resigning at an alarming rate. The study aimed to illuminate if the mentoring program increased the county extension agents’ perception of fit after completing the program by determining if they felt they possessed characteristics that were compatible with the organization.

This study was founded on the mentees’ viewpoints of their perceptions of person-organization (PO) fit, …

Understanding One’S Own Teaching Experiences: New Family And Consumer Sciences Teachers Reflect On Their First-Year Of Teaching Through Video-Recorded Classroom Observations And Interviews, Sheila K. Cook

Graduate Theses and Dissertations

The purpose of this study was to examine the experiences of new Family and Consumer Sciences (FCS) teachers and to describe their perceptions of classroom teaching readiness. The researcher completed a series of three classroom observations and three interviews of five first-year FCS teachers. The Danielson’s Framework for Teaching instrument was used for all observations and two sections of interviews used Interview Questions for Family and Consumer Sciences Educators instrument, which was taken in part, with permission, by Horizon Research, incorporated. All observations and interviews were completed over a time span of two to three weeks and examined essential teaching …

Employing Empathy: Using Video Simulations As An Intervention To Educate Social Work Students, Charles Adam Laffiteau

Graduate Theses and Dissertations

A video simulation featuring a Master of Social Work (MSW) student assessing a fictional client, portrayed by a professionally trained student actor, dealing with suicidal ideations was developed to model empathetic and reflective techniques. The video simulation was filmed in collaboration with University of Arkansas Global Campus and is part of an interdisciplinary educational pilot program. This pilot program builds upon traditional role-play scenarios by incorporating experiential learning within the creation of cost-effective simulated interactions that employ student actors as standardized clients. Combining social learning theory and constructivism allows Bachelor of Social Work (BSW) students to observe and analyze the …

Study Of A Symmetrical Llc Dual-Active Bridge Resonant Converter Topology For Battery Storage Systems, John K. George

Graduate Theses and Dissertations

A symmetrical LLC resonant converter topology with a fixed-frequency quasi-triple phase-shift modulation method is proposed for battery-powered electric traction systems with extensions to other battery storage systems. Operation of the converter with these methods yields two unique transfer characteristics and is dependent on the switching frequency. The converter exhibits several desirable features: 1) load-independent buck-boost voltage conversion when operated at the low-impedance resonant frequency, allowing for dc-link voltage regulation, zero-voltage switching across a wide load range, and intrinsic load transient resilience; 2) power flow control when operated outside the low-impedance resonance for integrated battery charging; 3) and simple operational mode …

Framing And Newspaper Coverage Of Racial Integration, Amy Unruh

Graduate Theses and Dissertations

For many Americans who grew up in the 1960s, the first published information about Africans came directly from Africa, in the form of exotic photographs and stories in National Geographic. Susan Goldberg, Editor in Chief of National Geographic, addressed the issue of race portrayals in the magazine, reflecting on the realization that National Geographic often provided readers “their first look at the world” while rarely acknowledging the struggles of race in the United States. The magazine displayed full-color photographs depicting Africans from many nations, dressed in native clothing and jewelry, positioned in settings that implied dignity, beauty and strength. Meanwhile, …

Barriers To Integrated Primary Care And Specialty Mental Health Services: Perspectives From Latinx And Non-Latinx White Primary Care Patients, Elizabeth A. Anastasia

Graduate Theses and Dissertations

High need, low access, and rising health care costs reveal the inadequacies of the current mental health system in the U.S. Racial/ethnic minorities, including Latinxs, face substantial disparities in accessing mental health treatment compared with non-Latinx Whites. Integrated primary care (IPC) offers an alternate model for meeting mental health needs by providing care in a way that is accessible to the general population. Though it has been suggested that IPC may reduce health disparities by decreasing barriers to mental health treatment, empirical data relevant to this question are limited. A series of three studies were conducted using a mixed methodology …

Associations Of Sex, Gender, And Gender Role Beliefs With Mental Health Attitudes, Ariel Erazo

Graduate Theses and Dissertations

Mental health stigma is a strong deterrent for individual with mental illness utilizing mental healthcare. Individuals living with a mental illness experience shame and marginalization due to stigma. Stigma is perpetuated through stereotypes created and used by people in the majority. Studies have been done to assess individual’s attitudes toward mental healthcare seeking in regards to gender, age, race, and profession. This study aimed to look at traditional gender role beliefs, sex, and gender expression as predictors of individual’s mental health attitudes and individual’s views of mental health norms. Using a cross-sectional survey, 392 participants completed scales that included the …

Cybersecurity Methods For Grid-Connected Power Electronics, Stephen Joe Moquin

Graduate Theses and Dissertations

The present work shows a secure-by-design process, defense-in-depth method, and security techniques for a secure distributed energy resource. The distributed energy resource is a cybersecure, solar inverter and battery energy storage system prototype, collectively called the Cybersecure Power Router. Consideration is given to the use of the Smart Green Power Node for a foundation of the present work. Metrics for controller security are investigated to evaluate firmware security techniques. The prototype's ability to mitigate, respond to, and recover from firmware integrity degradation is examined. The prototype shows many working security techniques within the context of a grid-connected, distributed energy resource. …

Efficacy Of Multivitaim-Mineral Supplementation On Health-Related Quality Of Life And Physical Activity In Young Adults, Sarah Pendergraft

Graduate Theses and Dissertations

Micronutrients are essential for both physical and mental health. There is a correlation between poor health and mood and micronutrient deficiencies. Young adults age 18-24 are an at-risk, understudied population likely to benefit from multivitamin mineral supplementation. Multivitamin mineral supplementation is a potential way to bridge gaps in micronutrient levels, thus influencing health-related outcomes. Here, we provide the first attempt at influencing health-related quality of life and physical activity with a multivitamin mineral supplement in young adults. Using a supplement formulated without herbal extracts and caffeine, this double-blind study examined the efficacy of a daily multivitamin mineral supplement for 30 …

Doctoral-Level Students Experience Adopting Gatekeeping Roles And Responsibilities Within Counselor Education, Evan Smarinsky

Graduate Theses and Dissertations

In counselor education and supervision, the term gatekeeping is used to describe the ongoing process of monitoring, evaluating, and remediating a student through their professional identity as a counselor. Gatekeeping is an ethical responsibility of counselor educators and supervisors, both faculty and doctoral-level students who supervise master’s-level students and is often identified as being one of their most difficult responsibilities. Doctoral-level supervisors play an important role in gatekeeping, although they are not involved in formal gatekeeping decisions and have not typically been the focus of research. Researchers have suggested there is a need to develop a better understanding of how …