Digital Commons Network^™

Attachment, Emotional Experiencing, And Physiological Response During Couple Interaction, Kyla Iverson

All Graduate Theses and Dissertations, Fall 2023 to Present

In this master’s thesis, I conducted a study using data from 63 hetereosexual couples from a previous research study done by Dr. Ryan Seedall. These couples participated in a micro-intervention where each partner discussed personal issues for three to four minutes while the other received guidance on supportive responses, promoting open communication. Using this data, I conducted a coding project studying the relationship between attachment styles and emotional experiencing, specifically how attachment styles intersect with emotional experiences, moment-to-moment feelings, and physiological arousal. This coding project involved utilizing the Emotional Experiencing Scale (EXP) by Klein and colleagues (1986) to observe couple …

Calculation Of Aerodynamic Surface Sensitivities Using The Adjoint Method In A Subsonic/Supersonic Panel Code, Nathan H. Hoch

All Graduate Theses and Dissertations, Fall 2023 to Present

An aircraft’s shape has a direct impact on the lift and drag it produces. In the early stages of designing an aircraft on a computer, engineers work to improve aircraft performance and efficiency by considering various shapes and configurations. Engineers use computer programs to analyze different designs and predict how each would perform in real-world conditions. Once an approximate aircraft shape is selected, adjustments to the shape can further improve the aircraft’s lift and drag characteristics. Engineers calculate a set of values called sensitivities that indicate which parts of the geometry should be changed to increase lift or reduce drag. …

Contrastive Representation Learning For Highly Imbalanced Multivariate Time Series With Extreme Instance Strategy, Onur Vural

All Graduate Theses and Dissertations, Fall 2023 to Present

Time series data refers to a sequence of data points collected or recorded at regular time intervals. In many fields including space weather, healthcare, and finance, predicting events from such data is crucial because these predictions can help protect infrastructures, improve healthcare outcomes, and forecast financial trends. However, one challenge in working with time series data is the presence of rare events, which are often underrepresented in the data. This imbalance makes it difficult for traditional prediction methods to provide accurate results, as they tend to focus more on the more frequent events and overlook the rare ones. To tackle …

Disentangling Factors Contributing To Population Performance Of Zion Bighorn Sheep, Ian Montgomery

All Graduate Theses and Dissertations, Fall 2023 to Present

Bighorn sheep populations across the western United States face increasing challenges from habitat loss, disease, and predation. In Zion National Park and surrounding areas, survey-based estimates indicate that the desert bighorn sheep population declined from over 800 individuals in 2018 to fewer than 500 in 2021. Understanding what drives these population changes is critical for effective wildlife management and conservation. This research examined key factors influencing population growth and individual survival to inform strategies for recovery in this bighorn population.

First, we analyzed which vital rates contributed most to population trends by estimating survival and reproduction rates from ground and …

Critically Assessing Normative Methods And Their Limitations In Managing Crowding Within Parks And Protected Areas, Glendon R. Vansandt

All Graduate Theses and Dissertations, Fall 2023 to Present

Visitor experiences in parks and protected areas are shaped by a variety of environmental, managerial, and social factors. To ensure that visitors enjoy their time in these spaces, management agencies often adopt guidelines to establish acceptable levels for different aspects of these experiences. One of the most selected factors is perceived crowding, which reflects how crowded visitors feel in a given area. When perceived crowding exceeds desired levels, it can significantly diminish visitor satisfaction.

This thesis presents two studies aimed at identifying the shortcomings of the management of perceived crowding. The first study conducts a comprehensive literature review that identifies …

Investigating Stability Of Cone-Derived Hypersonic Waverider Vehicles Via Design Space Exploration, Adam S. Weaver

All Graduate Theses and Dissertations, Fall 2023 to Present

It may come as no surprise that man-made objects flying at 5, 10, or even 25 the speed of sound (termed hypersonic) are difficult to design, inefficient in flight, and expensive to deploy. Most hypersonic vehicles are effectuated in ballistics, which simplify aerodynamic considerations owing to their fixed trajectory. However, maneuverable hypersonic vehicles can revolutionize commercial flight, national defense, and space travel. One candidate for such missions are waverider vehicles. Waverider vehicles cruise on a cushion of air generated by its own shock wave, essentially enjoying extra lift without any extra drag penalties (which are usually inherent to extra …

A Phenomenological Study: African American Female Millennial Church Attendance And The Implications Of Spiritual Formation, Licia Williams-Hawthorne

Doctoral Dissertations and Projects

There is a quiet exodus from the church amongst African American female millennials. In church, Christians gather for corporate worship, a renewal of faith through sermons and songs, and to strengthen spiritual formation. This study aimed to highlight the lived experiences to connect church leadership with raw data from a subpopulation that the church cannot leave behind. The theory guiding this study is the Phenomenological Theory as defined by Husserl (1859-1938) and supported by Peoples (2021) as it allows the researcher to uncover the experiences that shaped this population's decision to no longer regularly attend church. Three research questions defined …

The Role Of Mindset In The Academic Resilience Of Non-Residential Health Profession Students: A Phenomenological Study, Julie Lynn Branagan

Doctoral Dissertations and Projects

The purpose of this transcendental phenomenological study was to describe the lived experiences of academic resilience of non-residential healthcare students in rural regions of the Northeast United States. The theoretical framework guiding this study was Carol Dweck's theory on growth mindset, as it exposed the relationship of personal perspective on academic resiliency. This study attempted to answer the central research question: What are the lived experiences of academic resilience among non-residential health profession students? An extensive review of the literature revealed the compounding aspects of resilience research with specific attention to health profession students. Data collection methods included a letter-writing …

A Qualitative Study Of The Lived Experiences Of Individuals Whose Parents Or Grandparents Had/Have Substance Abuse Issues In The Midwest, Brandie Lee Gaudet

Doctoral Dissertations and Projects

This study focused on the lived experiences of individuals being raised by individuals who had/have substance abuse issues in the Midwest region of the United States of America. A closer look at this topic offered new insight into treatment and resources for adult children raised by parents/grandparents (collectively “parents”) with substance abuse issues (“SAI”) and how the parents’ substance abuse issues compromised the behavioral health outcomes of the adult children and affected the parents’ parenting outcomes. Understanding the role of family systems theory in adaptive and maladaptive behaviors is essential when formulating a plan to help individuals’ negatively impacted by …

Development In Comprehensive Onboarding Training And Professional Development For Online Adjunct Faculty, Leslie R. Stover

Doctoral Dissertations and Projects

Hiring online adjunct faculty in higher education continues to grow, encompassing nearly half of the overall faculty population. As four-year institutions rely on the benefits of adjunct faculty, they must also invest in their orientation and continuous development. Existing literature confirms the varied approaches to supporting adjunct faculty, deficiency in coordinated programming, and reveals a lack of understanding in adjunct faculty's perception of training delivered. Using a qualitative phenomenological design, this study explored the gap between the onboarding and professional development an institution provides and the online adjunct faculty’s perception of its effectiveness. The research questions explored the lived experiences …

Phenomenological Study: Exploring The Importance Of The Holy Spirit Experience Among Non-Cessational Church Leaders In South Carolina, Amelia J. Simmons

Doctoral Dissertations and Projects

Over time, many movements have influenced the theological foundations of Western Christianity and culture. For example, modernism has influenced Western culture leading to a rejection of supernaturalism, causing many individuals to overlook the transformative power of the Holy Spirit in personal and social life. Few theological works focus specifically on the Holy Spirit, and what is often proposed lacks a unified synthesis of empirical evidence. The foundation guiding this study is the biblical New Testament, which expresses the importance of the Holy Spirit and how He changes believers into diehards for Christ Jesus. Some church leaders today exhibit reluctance toward …

The Church’S Response Post Grey Divorce: A Phenomenological Study Of Evangelical Men Experiencing Grey Divorce And The Implications For Faith And Post-Divorce Adjustment, Randall Rush

Doctoral Dissertations and Projects

In 1990 one out of every ten divorces involved an individual over the age of fifty. By 2010, that number had climbed to one out of every four divorces. As of 2019, one in three people getting divorced in the United States was aged fifty or older. Termed by researchers as “grey divorce,” this phenomenon is expected to grow as demographic shifts reveal an increasing older adult population with longer life expectancies. These later-life divorces have psychosocial and economic negative consequences on the individual. Divorcing later-life men and women share a number of these negative consequences, but there is gender-based …

The Effect Of Cardiac Rehabilitation On Diastolic Heart Failure, Lucas Clouse

Doctoral Dissertations and Projects

The newest diagnosis approved for cardiac rehabilitation (CR) by the Centers for Medicare and Medicaid Services (CMS) was systolic heart failure with ejection fractions less than or equal to 35% in 2013. CMS did not approve diastolic heart failure as a diagnosis for CR as there has not been ample research done linking a possible benefit between the two. To date, limited research has been done regarding a CR’s resources (health education, exercise training, risk factor modification, meeting with dietitian) and its effects on diastolic heart failure. The purpose of this study is to evaluate if CR can improve quality …

Attachment Barriers To A Relationship With God; A Phenomenological Study Of Women With The Lived Experience Of Adolescent Sexual Assault, Celeste M. Caballero

Doctoral Dissertations and Projects

Among victims of sexual assault, it is significantly common for maladaptive attachment behaviors to manifest from this type of trauma which can transcend not just human relationships but their relationship with God as well. The problem is that sexual assault brutally attacks the core of a woman’s worth and value creating barriers that drastically affect her ability to develop healthy attachment with others which subsequently affects her ability to form and develop a positive relationship with God. The resulting attachment behaviors of sexual assault victims are important to study to be able to understand the root components of this trauma …

The Lived Self-Care Experiences Of Parents Of Children With Severe Intellectual Disabilities: A Phenomenological Study, Karen Nadine May

Doctoral Dissertations and Projects

The purpose of this qualitative phenomenological study was to understand the lived self-care experiences of parents of children with severe intellectual disabilities (CWSID) who attend a special needs school accommodating children with various learning disabilities. Self-care is defined as a deliberate action to control problems that lead to an improved quality of life and good health. The theory guiding this study was the transactional model of stress and coping theory. The study's central research question was, “What are the lived self-care experiences of parents of children with severe intellectual disabilities (SID)?” The qualitative phenomenological design allowed the data to be …

Leadership Training And Development For The Purpose Of Biblical Literacy In The Christian Fellowship Church Membership, Bancroft Augustus Battick

Doctoral Dissertations and Projects

The problem at Christian Fellowship Church in Anguilla is the high rate of biblical illiteracy due to the lack of trained leaders to preach and teach the Word effectively. The purpose of this action research project is to train and develop five leaders to preach and teach the Word effectively. If leaders are trained and developed to preach and teach the Word effectively, the biblical literacy of the CFC membership will increase. The goal of this leadership training is to create a cadre of leaders who will be qualified to preach and teach the Word. During the action research, the …

Identity Restored: High School Students Overcoming Social Media’S Influence To Embrace Their Identity As Sons And Servants Of God, Daniel M. Christiaans

Doctoral Dissertations and Projects

The research question for this action research project relates to the impact of social media on the identity formation of believers through their high school years. As a youth pastor of 20 years and father of four teenagers, I’ve noticed that high school students maintain many of the social media habits and addictions seen in the secular world. This regular interaction with social media is detrimental to their identity formation; they are not adopting the identity provided for them in Christ as communicated by the Word of God. This project will discuss the roles and responsibilities of the believer's identity …

Technological Attitudes, Social Media Usage, And Work Ethics Among Educators, Roshani Kundaria

Doctoral Dissertations and Projects

This study examines the relationship between social media use, technological attitudes, and work ethics among K-12 educators in the United States. With the COVID-19 pandemic forcing many educators to transition to remote work and online teaching, individuals have more online presence and social interactions. Understanding how these interactions influence the values associated with work is essential. The decision to utilize a particular social media platform for personal use depends on educators’ individual needs, preferences, and circumstances. Positive and negative attitudes toward technology usage and dependence on technology were examined. The researcher found a negative correlation between technological attitudes and social …

The ‘Monuments Men’ And Art In World War Ii, Sylvester M. Felder

Doctoral Dissertations and Projects

This research focuses on the 'Monuments Men,’ a group of civilian and military personnel from amongst the Allied Nations in World War II who dedicated themselves to protecting, preserving, and reclaiming Europe's artistic and architectural marvels. The thesis statement is art was highly valued by both sides during the war and fell into their operational and tactical planning and that the 'Monuments Men' were crucial to rescuing looted art and helping to establish some of the finest art institutions of the Western world, aiding in art provenance research and restitution. The dominant research question is why was art sought after …

Developing Divine Love Into Christoform Obedience: Understanding And Applying The Theological Framework Of Divine Love In A Measurable Growth Praxis, Jayson Pengra Derowitsch

Doctoral Dissertations and Projects

The purpose of this study was to analyze the growth outcomes of participants from a curriculum intervention on divine love with the goal of Christoform obedience. The point of the curriculum was to define divine love properly by using synthesized vantage points derived from precedent literature. These vantage points were developed into a four-step praxis of transformation in divine love. This praxis was the capstone of the curriculum. Three methods of data retrieval were used throughout the intervention process to target intellectual concept improvement, self-assessment improvement, and praxis improvement. As a result of the data, it was determined that fifty …

Women Leaders In Healthcare: Emotional Intelligence, Job Satisfaction, And Organizational Citizenship Behavior, Kuan-Yin T. Timothee

Doctoral Dissertations and Projects

The purpose of this nonexperimental quantitative correlational study was to explore the relationship between emotional intelligence (EI), organizational citizenship behavior (OCB), and job satisfaction among women in nonclinical leadership roles within the U.S. healthcare sector. As healthcare organizations adapt to technological, social, and economic transformations, they must increase their focus on cultivating EI and promoting OCB, especially in leadership roles (Bowling & Sessa, 2021; Herr et al., 2022; Marstand et al., 2021). Additionally, research has shown that EI facilitates business development and diminishes obstacles to organizational sustenance. Although prior research has established a link between EI and OCB, there is …

Fixdrive: Automatically Repairing Autonomous Vehicle Driving Behaviour For $0.08 Per Violation, Yang Sun, Christopher M. Poskitt, Kun Wang, Jun Sun

Research Collection School Of Computing and Information Systems

Autonomous Vehicles (AVs) are advancing rapidly, with Level-4 AVs already operating in real-world conditions. Current AVs, however, still lag behind human drivers in adaptability and performance, often exhibiting overly conservative behaviours and occasionally violating traffic laws. Existing solutions, such as runtime enforcement, mitigate this by automatically repairing the AV's planned trajectory at runtime, but such approaches lack transparency and should be a measure of last resort. It would be preferable for AV repairs to generalise beyond specific incidents and to be interpretable for users. In this work, we propose FixDrive, a framework that analyses driving records from near-misses or law …

Quantitative Runtime Monitoring Of Ethereum Transaction Attacks, Xinyao Xu, Ziyu Mao, Jianzhong Su, Xingwei Lin, David Basin, Jun Sun, Jingyi Wang

Research Collection School Of Computing and Information Systems

The rapid growth of decentralized applications, while revolutionizing financial transactions, has created an attractive target for malicious attacks. Existing approaches to detecting attacks often rely on predefined rules or simplistic and overly-specialized models, which lack the flexibility to handle the wide spectrum of diverse and dynamically changing attack types. To address this challenge, we present a general and extensible framework, MoE (Monitoring Ethereum), that leverages runtime verification to detect a wide range of attacks on Ethereum. MoE features an expressive attack modeling language, based on Metric First-order Temporal Logic (MFOTL), that can formalize a wide range of attacks. We integrate …

Specgen: Automated Generation Of Formal Program Specifications Via Large Language Models, Lezhi Ma, Shangqing Liu, Yi Li, Xiaofei Xie, Lei Bu

Research Collection School Of Computing and Information Systems

In the software development process, formal program specifications play a crucial role in various stages, including requirement analysis, software testing, and verification. However, manually crafting formal program specifications is rather difficult, making the job time-consuming and labor-intensive. Moreover, it is even more challenging to write specifications that correctly and comprehensively describe the semantics of complex programs. To reduce the burden on software developers, automated specification generation methods have emerged. However, existing methods usually rely on predefined templates or grammar, making them struggle to accurately describe the behavior and functionality of complex real-world programs. To tackle this challenge, we introduce SpecGen, …

Robust Threshold Ecdsa With Online-Friendly Design In Three Rounds, Guofeng Tang, Haiyang Xue

Research Collection School Of Computing and Information Systems

Threshold signatures, especially ECDSA, enhance key protection by addressing the single-point-of-failure issue. Threshold signing can be divided into offline and online phases, based on whether the message is required. Schemes with low-cost online phases are referred to as “online-friendly”. Another critical aspect of threshold ECDSA for real-world applications is robustness, which guarantees the successful completion of each signing execution whenever a threshold number t of semi-honest participants is met, even in the presence of misbehaving signatories. The state-of-the-art online-friendly threshold ECDSA with-out robustness was developed by Doerner et al. in S&P'24, requiring only three rounds. Recent work by Wong et …

Acccred: Improved Accountable Anonymous Credentials With Dynamic Triple-Hiding Committees, Sijiang Xie, Rui Shi, Yang Yang, Huiqin Xie, Yingjiu Li, Robert H. Deng

Research Collection School Of Computing and Information Systems

Accountable anonymous credentials protect user privacy while holding the accountability of ill-intentioned individuals, which is a critical feature for applications such as online payments and other financial services. Existing accountable anonymous credentials rely on a public committee of trustworthy members who are assumed not to collude and are well protected to perform privacy revocation. However, this assumption is unsound in blockchain-based cryptocurrency systems because the selected committees may involve nodes with significant stakes, and public nodes serving as committee members are vulnerable against targeted attacks from high-computing power adversaries. In this paper, we propose an improved accountable anonymous credential called …

Shipnavisim: Data-Driven Simulation For Real-World Maritime Navigation, Quang Anh Pham, Janaka Chathuranga Brahmanage, Akshat Kumar

Research Collection School Of Computing and Information Systems

Maritime traffic management in busy ports faces growing challenges due to increased vessel traffic and complex waterway interactions. Strategies such as e-navigation by the International Maritime Organization aim to enhance navigation safety through traffic digitization. Maritime traffic simulation is essential for these systems, offering a virtual environment to model, analyze, and optimize traffic flows. Unlike road traffic, there are few simulators for maritime traffic, and they often lack realism and multi-ship interactions. In this paper, we (a) present ShipNaviSim, a data-driven maritime traffic simulator that utilizes a large-scale dataset over 2 years and electronic navigation charts to model vessel movements …

“I Can Run At Night!”: Using Augmented Reality To Support Nighttime Guided Running For Low-Vision Runners, Yuki Abe, Keisuke Matsushima, Kotaro Hara, Daisuke Sakamoto, Tetsuo Ono

Research Collection School Of Computing and Information Systems

Dark environment challenges low-vision (LV) individuals to engage in running by following sighted guide—a Caller-style guided running—due to insufficient illumination, because it prevents them from using their residual vision to follow the guide and be aware about their environment. We design, develop, and evaluate RunSight, an augmented reality (AR)-based assistive tool to support LV individuals to run at night. RunSight combines see-through HMD and image processing to enhance one’s visual awareness of the surrounding environment (e.g., potential hazard) and visualize the guide’s position with AR-based visualization. To demonstrate RunSight’s efficacy, we conducted a user study with 8 LV runners. The …

Unlocking The Planning Capabilities Of Llms Through Maximum Diversity Fine-Tuning, Wenjun Li, Changyu Chen, Pradeep Varakantham

Research Collection School Of Computing and Information Systems

Large language models (LLMs) have demonstrated impressive task-solving capabilities through prompting techniques and system designs, including solving planning tasks (e.g., math proofs, basic travel planning) when sufficient data is available online and used during pre-training. However, for planning tasks with limited prior data (e.g., blocks world, advanced travel planning), the performance of LLMs, including proprietary models like GPT and Gemini, is poor. This paper investigates the impact of fine-tuning on the planning capabilities of LLMs, revealing that LLMs can achieve strong performance in planning through substantial (tens of thousands of specific examples) fine-tuning. Yet, this process incurs high economic, time, …

Towards Multimodal Empathetic Response Generation: A Rich Text-Speech-Vision Avatar-Based Benchmark, Han Zhang, Zixiang Meng, Meng Luo, Hong Han, Lizi Liao, Erik Cambria, Hao Fei

Research Collection School Of Computing and Information Systems

Empathetic Response Generation (ERG) is one of the key tasks of the affective computing area, which aims to produce emotionally nuanced and compassionate responses to user's queries. However, existing ERG research is predominantly confined to the singleton text modality, limiting its effectiveness since human emotions are inherently conveyed through multiple modalities. To combat this, we introduce an avatar-based Multimodal ERG (MERG) task, entailing rich text, speech, and facial vision information. We first present a large-scale high-quality benchmark dataset, AvaMERG, which extends traditional text ERG by incorporating authentic human speech audio and dynamic talking-face avatar videos, encompassing a diverse range of …