Digital Commons Network^™

Improving Undergraduate Student Engagement In Stem Through Bioinformatics Research, Michele C. Morris

Dissertations

A novel intervention to introduce undergraduate students to bioinformatics, provide authentic research opportunities, and support student retention in science majors and careers is presented in the Characterizing Our DNA Exceptions (CODE) project. The need to increase the number of qualified STEM graduates, particularly in the fields of bioinformatics and computational research, was the impetus for this project that leads students down the path of scientific discovery as they characterize genomic variants of uncertain significance (VUS). This study sought to examine if student participation in a CODE research project would increase their bioinformatics awareness, interest, comfort, and knowledge, as well as …

Modeling Freely Flying Insects Using A Strongly Coupled High Fidelity Numerical Framework, Jeremy A. Pohly

Dissertations

Flying insects, with their remarkable abilities, serve as fascinating sources of inspiration. Deciphering the complex mechanisms that enable monarch butterflies to migrate nearly 80 million times their body length, requires advanced modeling tools. These tools must capture the interplay between non-linear wing aerodynamics, dynamic body responses, and flexible wings, characteristics of the monarch. A novel framework is introduced that tightly integrates these physical phenomena through a dynamic relaxation scheme. The model’s application extends to examining the longitudinal flight of monarch butterflies and the hovering flight of fruit flies, bumblebees, and hawkmoths. A bio-inspired feedback controller ensures stable flight across all …

Joint Sonar And Communication (Soncomm) System Using Solvable Chaos, Tamseel Mahmood Syed

Dissertations

An ever increasing number of actively interconnected wireless devices tend to exert congestion on the naturally limited resources provided by the electromagnetic spectrum. This fact imposes a significant engineering challenge on efficient utilization of communication channels. One method to lessen the stringency of the spectrum access is to combine functionality of wireless applications via jointly operational (multi-purpose) waveforms. Solvable chaos was previously shown to have inherent detection benefits when used independently in practical demonstrations of either acoustic ranging or communication. This dissertation focuses on the design of a joint sonar-communication (SonComm) system via solvable chaotic waveforms. First, individual hardware demonstrations …

Self-Powered Sensor Systems For Space Applications, Saininad Chandrakant Naik

Dissertations

Harvesting energy from ambient sources allows sensors and systems to become self-reliable and not depend on small batteries or energy sources, which is of paramount importance in space applications. In recent decades, multi-band or wideband energy harvesters have attracted much attention. The main challenge to design such energy harvesters is that they need to efficiently scavenge the electromagnetic waves at multiple bands and deliver the received multi-frequency signals to the rectifier that has a frequency dependent impedance. In this dissertation, a compact dual-band harvesting sensor is developed for space applications at the RF (900 MHz) and the ISM (2400 MHz) …

Using Materialized Views For Answering Graph Pattern Queries, Michael Lan

Dissertations

Discovering patterns in graphs by evaluating graph pattern queries involving direct (edge-to-edge mapping) and reachability (edge-to-path mapping) relationships under homomorphisms on data graphs has been extensively studied. Previous studies have aimed to reduce the evaluation time of graph pattern queries due to the potentially numerous matches on large data graphs.

In this work, the concept of the summary graph is developed to improve the evaluation of tree pattern queries and graph pattern queries. The summary graph first filters out candidate matches which violate certain reachability constraints, and then finds local matches of query edges. This reduces redundancy in the representation …

Photonic Monitoring Of Atmospheric Fauna, Adrien P. Genoud

Dissertations

Insects play a quintessential role in the Earth’s ecosystems and their recent decline in abundance and diversity is alarming. Monitoring their population is paramount to understand the causes of their decline, as well as to guide and evaluate the efficiency of conservation policies. Monitoring populations of flying insects is generally done using physical traps, but this method requires long and expensive laboratory analysis where each insect must be identified by qualified personnel. Lack of reliable data on insect populations is now considered a significant issue in the field of entomology, often referred to as a “data crisis” in the field. …

The Future Of The Urban Street In The United States: Visions Of Alternative Mobilities In The Twenty-First Century, Esther Zipori

Dissertations

This dissertation is concerned with the present and future of urban streets in the United States. The goal is to document and analyze current visions, policies, and strategies related to the form and use of American urban streets. The dissertation examines current mobility trends and offers a framework for organizing visions of the future of urban streets, evaluating them through three lenses: safety, comfort, and delight: assessing physical conditions in accordance with livability standards toward sustainable development. At the same time, it demonstrates the way 12 scenarios (NACTO Blueprint for Autonomous Urbanism, Sidewalk Labs: Quayside Project, Public Square by FXCollaborative, …

Interactions Of Amyloid Peptides With Lipid Membranes, Yanxing Yang

Dissertations

The aggregation of amyloid proteins into fibrils is a hallmark of several diseases including Alzheimer’s (AD), Parkinson’s, and Type II diabetes. This aggregation process involves the formation of small size oligomers preceding the formation of insoluble fibrils. Recent studies have shown that these oligomers are more likely to be responsible for cell toxicity than fibrils. A possible mechanism of toxicity involves the interaction of oligomers with the cell membrane compromising its integrity. In particular, oligomers may form pore-like structures in the cell membrane affecting its permeability or they may induce lipid loss via a detergent-like effect. This dissertation aims to …

Platinum Nanoparticles, Targeted Therapy For Triple Negative Breast Cancer, Aida Lopez Ruiz

Dissertations

Nanotechnology is a multidisciplinary field that has many different applications including cancer treatment and detection. Noble metal nanoparticles such as gold, silver or palladium, have shown major potential in the field of medicine and pharmaceutics. In particular, platinum nanoparticles (Pt NPs) have been reported with promising anticancer results. The activity of nanoparticles is based on their small size and high surface area; these properties allow them to penetrate biofilms as well as influence intracellular mechanisms. Recent studies indicate that Pt NPs can be used as a therapy for cancer showing a limited toxicity to healthy cells. Hence, in this work, …

Evaluation And Revision Of The Practice Environment Scale Of The Nursing Work Index For Acute Care Hospital Staff Nurses, Caitlin M. Campbell

Dissertations

The Practice Environment Scale of the Nursing Work Index (PES-NWI) is the most frequently used instrument for measuring the nursing work environment. The original PES-NWI obtained its items directly from the parent instrument, the Nursing Work Index, which was developed in the 1980s. However, potential value change among younger generations and vast historical, social, and technological transformations in the way healthcare is provided may have led to different factors that compose a favorable work environment for nurses working today.

Using The Social-Ecological Model To Better Understand Sexual Assertiveness Among Undergraduate Women At An Institution Of Higher Education In The Southeastern United States, Lisa Wright

Dissertations

This study examined sexual assertiveness among female undergraduate students at an institution of higher education in the southeastern United States from the context of the social-ecological model. An online survey instrument examined sexual assertiveness, sexual communication self-efficacy, campus climate, and sexual scripts. Structural equation modeling was used to examine the relationships between these variables and all variables significantly predicted sexual assertiveness individually, but when examining the relationships collectively, only sexual communication self-efficacy and campus climate remained significant predictors of sexual assertiveness.

An Assessment Of Attitudes, Knowledge And Willingness To Disclose Disability And Military Veteran Status In The Higher Education Workplace, Kerri Fontenot Liuzza

Dissertations

ABSTRACT

The purpose of this study was twofold. In Part 1 of this study, using a quantitative, cross-sectional survey research design, the purpose was to examine the dimensionality of an instrument developed by the researcher, the Employee Disability and Military Veteran Attitudes, Awareness, and Disclosure Questionnaire (EDMVAAD) and the relationships among the three variables of interest. In Part 2 of this study, using a quasi-experimental pretest/posttest design, the aim was to analyze whether a brief training session on diversity policies and practices related to employees with disabilities and military veterans in the higher education workplace, influenced participants knowledge levels and …

Psychological Capital And Perceived Employability: Exploring Women Veterans’ Military-To-Civilian Career Transition, Tundra Gatewood

Dissertations

The veteran human capital remains integral to the U.S. workforce and sustainment of its competitive advantage (Carter, Schafer, et al., 2017). Women constitute 17% of 1.4 million servicemembers and 10% of 18.4 million veterans, with a projected population growth of 18% by 2040 (Defense Manpower Data Center [DMDC], 2021; U.S. Bureau of Labor Statistics, 2020a). Each year, an estimated 30,000 ex-servicewomen enter the national labor force (National Center for Veterans Analysis and Statistics, 2019; U.S. Bureau of Labor Statistics, 2020a). Most of these ex-servicemembers turned veterans must navigate the military-civilian divide and negotiate their economic worth in highly divergent and …

Strategic Human Resource Management Practice Integration And Organizational Ambidexterity In Vuca Times, Gizzatta Cook

Dissertations

ABSTRACT

The failure rate of business strategy implementation hovers around 50% due to a lack of organizational ambidexterity in the realities associated with a four-dimensional paradigm referred to as a volatile, uncertain, complex, and ambiguous (VUCA) environment (Chattopadhyay et al., 2017). Anwar and Abdullah (2021) state that organizational success depends highly on how well organizational leaders manage and administer their human resource management practices. Today's successful organizations must adapt to societal changes to survive and thrive (Chattopadhyay et al., 2017).

Surviving and thriving beyond today’s organizational constraints also involves a business's ability to demonstrate organizational ambidexterity. Organizational ambidexterity is the …

Self-Efficacy, Knowledge, And Social Support On Self-Care Among Senior Korean Immigrants With Diabetes, Jung Eun Kim

Dissertations

Diabetes is a prevalent chronic disease that significantly affects morbidity and mortality among senior people. There are diverse ethnic populations in the United States, and Korean immigrants are one of the minority immigrant groups. Many senior Korean immigrants report language inadequacy, lack of social support, discrimination, anxiousness in an unfamiliar environment, and poor economic status. These barriers limit them from accessing adequate health care services and resources. Although self-care is the most important key part in managing diabetes, senior Korean immigrants with diabetes face challenges to perform effective self-care activities related to various barriers. However, studies about related factors on …

Cross-Cultural Adaptation And Validation Of Lung Cancer Screening Health Belief Scale, Fang Lei

Dissertations

Lung cancer is the leading cause of cancer death and the third prevalent disease among Chinese Americans. Lung cancer screening with low dose computed tomography is an effective method to detect lung cancer. Compared to chest X-ray, low dose computed tomography can reduce the mortality rate of lung cancer by 20% in the high-risk smokers. Since 2013, lung cancer screening has been recommended by most health organizations and covered both by private and public insurances. However, the uptake rate of lung cancer screening is still low in the US, and there are few studies on lung cancer screening among Chinese …

Investigating Novice Nurses’ Perceptions Of Academic Dishonesty During Nursing Education, Christy Michelle Gough

Dissertations

Academic dishonesty in nursing education has been an ongoing concern to the nursing profession for many decades. There is a concern that students who engage in academic dishonesty in the classroom setting might also engage in dishonest behaviors in the professional setting. Many studies in the literature explored nursing students’ perceptions of academic dishonesty during nursing education; however, there was limited literature on novice nurses’ perceptions of academic dishonesty and its impact on the nursing profession. Novice nurses provided the voice of recent nursing students as well as the voice of a professional nurse. The purpose of this qualitative study …

Negative Memory Bias And The Impact Of Early Childhood Stress, Elizabeth Cecile Shmikler

Dissertations

Childhood Trauma is a pervasive problem in the United States, and research suggests it serves as a strong contributor and. Predictor for a multitude of negative mental and physical health disorders (Vrijsen et al., 2018). Negative memory bias, a neuropsychological precursor to later onset of adult mental health disorders, has been scientifically related to childhood trauma (Pollak et al., 1998). Despite numerous findings supporting the relationship between negative memory bias, childhood trauma, and mental health, little is known regarding the age of onset of negative memory bias (Brainerd & Reyna, 2012; Kujawa et al., 2011). Given the research supporting the …

Self-Regulation In The Learning Experiences Of School Choice Students, Melody Lynn Schmidt

Dissertations

This study explores self-regulation in the learning experiences of school choice students who have attended a traditional public school and a charter public school. Research shows self-regulation is a form of non-cognitive executive functioning characterized by many observable traits children employ in their learning environments. Self-regulation development in the learning investments students make relates to school mobility, social identity, and connectedness while navigating their learning amid school changes (Golden, 2017; Langenkamp, 2016). School mobility may impact students by lowering self-regulation and increasing school dropout through compromised social identity and connectedness (Jdaitawi, 2015; Rumberger & Larson, 1998). Understanding the distinction between …

Faith-Based Counseling Versus Traditional Psychotherapy: A Phenomenological Evaluation Of African American Protestant Experiences, Shannon Gray

Dissertations

This phenomenological study was designed to evaluate the experiences of African American Christian adult clients within traditional psychotherapy and faith-based counseling settings. Research has shown various therapist/counselor identities affect Christian African American clients, and that Christians as well as African Americans have historically been less likely to pursue traditional psychotherapy for a variety of reasons. Participants were six African American Christian adult participants (three traditional psychotherapy participants and three faith-based counseling participants). All participants were asked open-ended questions about their experiences in traditional psychotherapy or faith-based counseling. In addition, they were asked to evaluate several aspects of their therapy/counseling experience …

Development Of Geoscience Interest And Identity Of Female First-Generation Undergraduate Geoscience Students, Dina London

Dissertations

The purpose of this basic qualitative study was to understand how female first-generation undergraduate geoscience students developed their situational geoscience interests into individual interests that, in turn, supported their geoscience identity and decision to become a geoscience major. The experiences of six female first-generation undergraduate geoscience students were used to explore how geoscience interests and geoscience identities developed over time. I analyzed three artifacts representing participants’ geoscience identity, geoscience interest development timeline, and transcribed interviews to explore emerging themes relating to interest and identity development. Participants described events relating to their situational geoscience interests, individual geoscience interests, and the formation …

“Ici On Chante En Français”: Giving A Voice To Cajun Culture, Tessa Espinosa

Dissertations

“Ici on parle Français” (“French is spoken here”) is a popular adage in South Louisiana and can be seen on signage and T-shirts in mom-and-pop stores throughout the heart of Cajun territory. This phrase reflects cultural pride and tenacity in a small but hearty group of people whose identity was nearly stripped away. Musical settings of Cajun French verse constituted a vital part of this culture. Why is this music important? It exists as historical preservation, a means to explore roots in a time when so many are rootless. These songs have been passed down through oral history for generations. …

The Acculturation Process Of International Students In Cacrep Counseling Programs: A Grounded Theory Approach, Hanny Wuysang

Dissertations

International students bring diverse, multicultural perspectives to the U.S. postsecondary education system through their participation in higher education. However, in their adjustment to U.S. higher education, international students in counseling programs face barriers and challenges such as language differences, lack of support, microaggressions and discrimination, culture shock, and different perspectives on mental health treatment as compared to their home cultures. These factors can interfere with their daily personal and academic lives, yet there is often minimal support from their academic programs and host institutions. The growing number of international students in counseling programs increases the importance of understanding their acculturation …

Developing And Assessing The Psychometric Properties Of A Multidimensional College Mental Health Assessment Inventory: A Mixed-Methods Study, John Sylvester

Dissertations

The purpose of this study was to develop a multidimensional College Mental Health Assessment Inventory (CMHAI) specifically for the college student population. In the first phase, a conceptual and theoretical review of general existing scales was performed, followed by conducting exploratory semi-structured interviews with twelve participants. From the interviews, I identified themes/constructs (domains) comprised of 52 items to make up the initial inventory. Participants believed these themes to be worthy of note: (a) admission to college with pre-existing mental conditions; (b) students’ expectation about college versus the actual experience; (c) college as a new environment brings about feelings of loneliness; …

Study Of Sustainable Development In Paper, Printing And Packaging Material Applications To Support Circular Economy, Prashant Ramesh Kotkar

Dissertations

To support circular economy and sustainability, the use of suitable material in paper, printing, and packaging industries, for several types of industrial printing material and printed product applications, plays a significant role for end user applications. Several types of packaging printing materials, specifically those finished with different printing technologies and exposed to different environmental conditions are targeted.

The purpose of this research study is to improve design and evaluation for paper, printing, and packaging material sustainability in end-user applications, to deal with the addressed sustainability issues brought by the paper, printing and packaging products end user groups. As the impacts …

A Comparative Study Of Instructional Perspectives Among Learning And Development Practitioners, Merzudin Selimovic

Dissertations

The instructional perspectives of learning and development practitioners have a critical impact on their learners. This study aimed to determine if a relationship existed between years of experience of a learning and development practitioner and how they score on the seven factors of Henschke’s (1989) Modified Instructional Perspectives Inventory (MIPI). The MIPI consisted of seven factors: 1) Teacher Empathy with Learners, 2) Teacher Trust of Learners, 3) Planning and Delivery of Instruction, 4) Accommodating Learner Uniqueness, 5) Teacher Insensitivity Toward Learners, 6) Learner-centered Learning Process (Experience-based Learning Techniques), and 7) Teacher-centered Learning Process. The MIPI is a revised version of …

A Dialogical Approach To Peer Coaching For Asset Pedagogies, Elisabeth Van Beek

Dissertations

The purpose of this study was to understand how dialogical peer coaching using an asset pedagogical framework supported the development of culturally sustaining pedagogy (Gay, 2000; Ladson-Billings, 1994; Paris & Alim, 2017). This action research study followed one teacher and eight emergent bilingual students during an intervention. The intervention consisted of asset projects developed from the funds of identity framework (Esteban-Guitart, 2016). The peer coaching process consisted of a period of observation followed by repeated co-planning, coteaching, and reflection. The researcher took a dialogical stance on creating asset projects with the students as well as peer coaching with the teacher …

The Graduate Record Examination And Graduate Admissions: Issues In Diversity, Lauren Rankin

Dissertations

Doctoral education is an expensive and difficult endeavor. Program faculty are interested in finding students who will be successful in completing their courses and obtaining employment. The Graduate Record Examination (GRE) is often used to assess a student’s readiness for the rigors of graduate education. A student’s readiness for doctoral education can be assessed through analyzing the predictive validity of the GRE with various outcomes such as grade point average, scholarly output, and time to completion. However, this measure may not predict success for all students with potential bias towards students who are international and linguistically diverse. A total of …

Exploring Clinical Supervisors’ Experiences With Indirect Exposure To Trauma, Maya Kirsten Schmidt

Dissertations

In the United States, community-based victim services agencies commonly offer therapy services to survivors of interpersonal violence (Globokar et al., 2019; James & Eyjolfson, 2020; Langton, 2011). For mental health counselors and therapists working in victim services agencies and/or with survivors of interpersonal violence, indirect trauma is a known risk (Baird & Jenkins, 2003; Dworkin et al., 2016; Globokar et al., 2019; Kulkarni et al., 2013; McCann & Pearlman, 1990; Pearlman & Saakvitne, 1995; Sommer & Cox, 2005). Consequently, clinical supervisors of clinicians working with survivors of interpersonal violence must be prepared and able to effectively support clinicians in managing …

Law Enforcement Efficacy In Domestic Violence Calls Based On The Responding Officer’S Experience, Training, And Scholarly Level, Idilio Moncivais Pinedo

Dissertations

The purpose of this study was to provide insights into whether law enforcement officers (LEO) have been able to produce positive outcomes based on their responses when the victims have called 911. Law enforcement officers in this sample were grouped into three clusters based on the number of years of patrol experience (10 years or less versus more than 10 years), the education level (less than a bachelor’s degree versus at least a bachelor’s degree), and training (advanced training versus basic training). The key findings were A) The three clusters of law enforcement officers were well distinguished. The first cluster …