Digital Commons Network^™

Remote Vibration Based Monitoring Of Bridge Scour, Alan Kazemian

Dissertations

The gradual erosion of the sediment around a bridge foundation is called Scour. This erosion is caused by water flow and increases during times of high-water flow such as flooding. The scour leaves the bridges structurally unsound over time and jeopardizes the safety of the structure. Approximately 60 percent of bridge failures in the United States are caused by scour. A variety of types of devices have been used to detect scour. Most of these devices only observe the scour and not the structural integrity of the bridge. The typical approach has relied on visual inspections of the bridges after …

The Cultivation And Integration Of Cultural Humility And Cultural Competence In Lgbtiq+ Client Work: A Constructivist Grounded Theory Approach, Gon Ratanashevorn

Dissertations

Previous researchers have highlighted the lack of consistency and standards in LGBTIQ+ cultural competence trainings which may cause negative therapy experiences for LGBTIQ+ clients. This research empirically explored counselors’ (n = 12) process of the cultivation and integration of LGBTIQ+ cultural competence and cultural humility to inform training which leads to better services for LGBTIQ+ clients through constructivist grounded theory method. The theory of the life-long cultivation and integration of LGBTIQ+CC and cultural humility emerged with five categories: (1) motivation to do right by queer clients, (2) cultivating the right soil for queer folks, (3) walking the walk to …

Certified Registered Nurse Anesthetists' (Crna) Perceived Ease And Usefulness Of Video Laryngoscopes For Endotracheal Intubation Of Surgical Patients With Difficult Airways, Uwe G. Klemm

Dissertations

Anesthesia providers frequently encounter patients with difficult airways. The inability to effectively ventilate and oxygenate a patient due to failed endotracheal intubation increases patient morbidity and mortality (Detsky et al., 2019; Joffe et al., 2019). Video laryngoscopes appear to provide benefits by improving airway visualization and first-attempt endotracheal intubation success and decreasing the rate of failed endotracheal intubation attempts (Lewis et al., 2017; Pieters et al., 2017; Vargas et al., 2021). This research study examined the perceived usefulness and ease of use of video laryngoscope technology by CRNAs for initial endotracheal intubation when confronted with a difficult airway. The study …

Caring Behaviors Of Nursing Students And Their Attitudes Toward Older Adults, Jacquelyn D. Lambert-Davis

Dissertations

Caring is an emotion. It is a feeling of compassion and an understanding of the difficulties of others. Research indicates that caring behaviors and attitudes are an important part of the knowledge base for nursing students. Caring behaviors and attitudes are an important part of the knowledge base for nursing students in order to provide competent care for older adults. This descriptive cross-sectional study reports findings of caring attitudes and behaviors of nursing students using the Caring Dimensions Inventory (CDI). The purpose of this study was to examine the self reported attitudes and caring behaviors of nursing students toward older …

Development And Evaluation Of A Nurse Practitioner Directed Early Palliative Care Initiative And Its Impact On Goal-Concordant Care At A Cancer Center, Ashley V. Weinmann

Dissertations

Seriously ill patients often experience discordant care. Delivering high-quality healthcare requires effective communication to support goal-concordant care.

Pancreatic cancer has a 5-year survival rate of 12% with a high symptom burden. Pancreatic cancer patients often have unmet needs that lead to increased psychological, spiritual, social, and physical needs. Early integration of palliative care can provide high-quality communication and goal-concordant care. A retrospective analysis of MDACC's pancreatic patients found that 34% were referred to palliative care.

Instructor Characteristics That Increase Self-Efficacy In Nursing Students, Kaycee J. Jacobson

Dissertations

With the current nursing shortage, finding ways to increase nursing retention in graduate nurses can help ease the shortage. Self-efficacy is a factor that contributes to an individual's well-being and can affect their professional accomplishments. The purpose of this study, guided by Bandura's theory of self-efficacy, was to identify instructor characteristics that may impact student perceived self-efficacy in the clinical setting. Bandura identified self-efficacy as a factor that contributes to an individual's well-being as a whole and can affect their professional accomplishments. A sample of 19 nursing students who were enrolled in a clinical course were recruited and completed the …

An Exploration Of Contributors To Intergenerational Trauma Transmission In American Families: Parental Life Experiences And Parenting Styles., Shantrell P. Sutton-Mckenzie

Dissertations

Preexisting research on intergenerational trauma transmission primarily addresses biological and behavioral routes of transmission, leaving little room for systemic influences. This research reviews preexisting biological and behavioral contributors and explores systemic contributors to intergenerational trauma transmission in American families as it relates to post-traumatic growth, parental centrality distress, and parenting styles. It was that post-traumatic growth and parental centrality of distress (comprised of ACES, centrality of events, and access to community resources) and PTG predict parenting styles. The research hypothesis was partially supported. It was found (1) Post-traumatic growth, ACEs, and perceived access to community resources while parenting added significantly …

Undergraduate Student Sense Of Belonging And Edtech Tool Engagement: A Mixed Methods Exploration Of The Virtual Campus Experience, Veronica Wilson

Dissertations

The contemporary postsecondary learning experience is heavily mediated by educational technology (EdTech) tools and yet little is known about the ways in which these tools impact student engagement and sense of belonging, two indicators which are important to student persistence and graduation. Using Strayhorn’s (2023) critical socioecological sense of belonging framework, this convergent mixed methods study offers insights into these relationships by examining student engagement with EdTech and student sense of belonging and the impact of student traits on the relationship between EdTech and sense of belonging. This study was conducted at a private, broad access Hispanic-Serving Institution in the …

Implementing And Evaluating Social-Emotional Learning Through Inquiry Research And Best Practice, Nada Abid

Dissertations

Previous research has provided insight into the benefits of incorporating social-emotional learning (SEL) into the classroom, such as in the area of academic performance. As Jones et al. (2018) explained, “Children who can effectively manage their thinking, attention, and behavior are also more likely to have better grades and higher standardized test scores” (p. 15). I designed this research to examine the implementation of an SEL program and evaluate its effectiveness. The school’s multi-tiered system of supports(MTSS) team worked to implement the SEL program in the classrooms and chose two classrooms in which to pilot the program. The evaluation involved …

A Quantitative Analysis Of University Counselors And Student Affairs Personnel's Knowledge And Confidence In Working With Students With Autism Spectrum, Sandra Araiza Salazar

Dissertations

University counselors and student affairs personnel often find themselves unprepared to address the needs of undergraduate students with autism spectrum disorder. Many of these professionals are not receiving the proper training or education to prepare for the unique social, emotional, and academic needs of these neurodiverse students. Due to this trend, many university counselors and student affairs personnel may lack the necessary knowledge and confidence in serving this neurodiverse population. In this first-of-its-kind study, university counselors and student affairs personnel’s knowledge and confidence in working with undergraduate students with autism spectrum was analyzed. A nonrandom sample of university counselors and …

Brief Treatment For Ptsd: Promoting Trauma Recovery With A Five-Session Cognitive Processing Therapy Protocol, Sanela Kalakovic

Dissertations

Cognitive Processing Therapy (CPT) is a first-line treatment for trauma. CPT is traditionally administered over 12 sessions. This open clinical trial examined the feasibility and efficacy of a 5-session CPT protocol. The abbreviated protocol moves more quickly to the proposed therapeutic mechanism of action, cognitive restructuring, to alter unhelpful traumarelated thoughts and beliefs. The goal is to maintain efficacy while making therapy more efficient and thereby reducing barriers to trauma treatment. Using a repeated measures open clinical trial design (with embedded multiple baselines), 67 adults (M age = 43 years, 90% female, 79% White) with clinically significant post-traumatic stress disorder …

Estimating And Applying Parameters Necessary To Plan Cluster Randomized Trials (Crts) And Multisite Cluster Randomized Trials (Mscrts), Dea Mulolli

Dissertations

Cluster randomized trials (CRTs) are commonly used to study the effectiveness of educational interventions. During the design phase of a study, it is critical for researchers to ensure their studies are adequately powered to detect meaningful treatment effects, including both main and moderator effects. Designing CRTs with adequate power to detect main and moderator effects requires accurate estimates of design parameters. This research aims to advance the literature on design parameters for power analyses, specifically focusing on empirical estimates of intraclass correlations (ICCs). The work consists of three research papers that examine the role of including the teacher level in …

A Contingency Table Alternative To Poisson Regression In Comparing The Frequency Distributions Of Two Populations, Sandra Tay

Dissertations

When testing the conditional independence between a binary outcome and a binary treatment indicator, conditioned on a categorical variable with k levels, typically represented by a K × 2 frequency table, researchers often turn to Poisson regression and the Cochran-Mantel-Haenszel (CMH) test. However, a common challenge encountered in these analyses is the presence of treatment effect heterogeneity. Introducing an interaction term between treatment indicators and effect modifiers in log-linear regression offers potential solutions, yet the equidispersion assumption of Poisson regression remains problematic. On the other hand, the CMH test assumes similar treatment effects across all strata, disregarding potential variations among …

Creating Advanced Processes Through Utilizing Renewable Eutectics For Gas Capture And Separation, Ahmad Mohammad Rasheed Al-Bodour

Dissertations

Global efforts to reduce emissions of environmentally harmful gases have intensified, with carbon dioxide (CO2) being identified as the most significant greenhouse gas and a key target for reduction strategies. Carbon dioxide (CO2) has the highest potential of threatening the environment. It is recognized as one of the greenhouse gases which has the potential of negative effects on the human being, atmosphere, and the environment. Even though CO2 gas has negative effects but at the same time it has high potential to be exploited in beneficial ways. For instance, CO2 is used in the energy field to produce the so-called …

A Microgenetic Learning Analysis Of Contextuality In Reasoning About Exponential Modeling, Elahe Allahyari

Dissertations

This work explores the complex cognitive processes students engage in when addressing contextual tasks requiring linear and exponential models. Grounded within Piagetian constructivism and the Knowledge in Pieces (KiP) epistemological perspective (diSessa, 1993, 2018), this empirical study in a clinical setting develops a Microgenetic Learning Analysis (MLA) of the reasoning of 14 students from an Algebra II course. It reveals the critical role of cognitive disequilibrium as an essential cognitive state for conceptual development and the process of reorganizing knowledge systems. The study uncovers the fluctuations in students’ reasoning patterns and the significant impact on students’ reasoning patterns of task-specific …

Infusing Values Into Written Exposure Therapy: A Comparison Study, Maegan Campbell

Dissertations

Written Exposure Therapy is a brief, efficacious intervention for the treatment of PTSD symptoms. The WET protocol calls for the infusion of values into therapeutic work, however, does not detail how to incorporate these values work into the highly scripted treatment. This study compared the standard WET protocol with WET infused with values. The study examined differences across the two conditions on seven variables (PTSD scores, depression scores, value importance and consistency, quality of life, psychological flexibility, customer satisfaction, and therapeutic alliance). The sample was largely homogenous in gender, ethnicity, sexuality, and reported index trauma. The sample was largely white …

An Experimental Study Of Supervised Machine Learning Techniques For Minor Class Prediction Utilizing Kernel Density Estimation: Factors Impacting Model Performance, Abdullah Mana Alfarwan

Dissertations

This dissertation examined classification outcome differences among four popular individual supervised machine learning (ISML) models (logistic regression, decision tree, support vector machine, and multilayer perceptron) when predicting minor class membership within imbalanced datasets. The study context and the theoretical population sampled focus on one aspect of the larger problem of student retention and dropout prediction in higher education (HE): identification.

This study differs from current literature by implementing an experimental design approach with simulated student data that closely mirrors HE situational and student data. Specifically, this study tested the predictive ability of the four ISML classification models (CLS) under experimentally …

Macroevolution Meets Community Ecology: Does Species Interaction Influence Tempo And Mode Of Diversification In Fishes That Cross The Marine/Freshwater Boundary?, Victor De Brito

Dissertations

Evolutionary transitions between marine and freshwater ecosystems are an extreme ecological shift and expose fish lineages to novel abiotic and biotic settings. Yet, it remains unclear how those habitat transitions and the interaction with the newly invaded communities have altered the macroevolutionary dynamics of fish clades. The theory of ecological opportunity predicts that lineages that colonize species-poor regions will have greater potential for phenotypic diversification and speciation than lineages invading species-rich regions. Thus, transitions between marine and freshwaters in depauperate regions may promote adaptive radiation. While most major fish clades are restricted to either marine or freshwaters, so called transmarine/ …

The Role Of Evaluation Terms In The Quality Of Final Evaluation Reports In International Development Cooperation: A Multi-Phase Mixed Methods Study, Fanny J. Hernandez De Alvarez

Dissertations

In international development cooperation there is constant discussion about how to improve evaluation practices. Too little is known about where and which factors influence the quality of evaluation reports. Arguably, one influential factor is the quality of the terms of reference (TORs), which, in many sectors, are referred to as Requests for Proposals (RFPs). This study examines the role of the quality of TORs in positively affecting the design and conduct of evaluations, as well as the overall quality of final evaluation reports. This study also examines other factors that may contribute to the quality of final evaluation reports.

The …

Alternative Adjacency Matrices And Spatial Analysis, Jaeseong Hwang

Dissertations

Spatial analysis is essential for comprehending the spatial distribution of diseases and various phenomena across geographic regions. This study investigates the utilization of alternative adjacency matrices in spatial analysis, with a specific focus on implementing Poisson regression models. This study intricately explores the methodology behind constructing alternative weight matrices, specifying weight matrices, and comparing the performance of Poisson models using five different weight matrices.

The popular Poisson model model is described, and five different definitions of weight matrices are defined, which are the following: binary weight matrix, inverse distance weight matrix using Euclidean distance, Graph distance matrix, Path matrix, and …

A Brief Self-Compassion Intervention For Survivors Of Sexual Trauma With Psychological Distress, Natalie Marie Hogue

Dissertations

Individuals who have experienced sexual trauma are at an increased risk of psychological disorders and psychological distress (Dworkin, 2020; Dworkin et al., 2017; Dworkin & Schumacher, 2018). Sexual trauma has one of the highest conditional risks for the development of posttraumatic stress disorder (Domino et al., 2020; Perrin et al., 2014). Experiential avoidance, shame, and posttraumatic cognitions are associated with psychological distress after experiencing sexual trauma (Bhuptani et al., 2019; Domino et al., 2020; Foa et al., 1999; Merwin et al., 2009). Established research suggests that self-compassion-based therapies can be effective in reducing psychological distress and treating a wide range …

Modeling Blue Mondays: A Preclinical Evaluation Of 3,4-Methylenedioxymethamphetamine Binge Dosing On Responding Maintained By A Progressive Ratio Schedule Of Food Reinforcement In Male Sprague-Dawley Rats, Candace Brenda Johnson

Dissertations

3,4-Methylenedioxymethamphetamine (MDMA) has been abused recreationally in the rave scene for decades. As pharmacotherapy research has progressed to develop alternative medications to treat trauma-related psychiatric symptoms, MDMA has become a prime candidate for medication-assisted psychotherapy in the treatment of PTSD and will soon be FDA approved for medicinal use. Despite convincing evidence for favorable clinical outcomes, this substance has been known to contribute to acute depressive states following excessive use. The sharp decrease in mood and cognitive impairment following MDMA use is colloquially termed Blue Mondays. Measuring lack of motivation or more broadly anhedonia through withdrawal of acute and chronic …

Long Covid Patients: A Phenomenology Study Exploring Mental Health And Psychosocial Adaptation To Disability, Tonia Joy Lans

Dissertations

In the United States, approximately 1 in 13 long COVID patients experience adverse complications two to three years post-recovery (Centers for Disease Control and Prevention, 2022), including physical, psychological, and cognitive impairment, issues with daily functioning, and difficulties returning to work (del Rio et al., 2020; Greenhalgh et al., 2020; Ladds et al., 2020; Logue et al., 2021). Moreover, collective research has indicated the debilitating complications of long COVID often result in impaired mental health, chronic illness, and disability. While significant research efforts have started to accumulate data to understand and treat the physical and neuro-logical manifestations of this chronic …

On Near-Linear Cellular Automata Over Near Spaces, Abdul-Rahman M. Nasser

Dissertations

Cellular Automata can be considered as examples of massively parallel machines. They are computational mathematical objects consisting of a grid of cells, each of which can exist in a finite number of states. These cells evolve over discrete time steps according to a set of predefined rules based on the states of neighboring cells. The notion of cellular automata was first introduced by Ulam and von Neumann and then popularized by John H. Conway in the 1970s with one of the most famous examples being The Game of Life.

This research builds on and generalizes the work of Tullio Ceccherini-Silberstein …

Using Video Prompting To Teach Daily Living Skills To Young Adults With Disabilities, Melissa Anne Rajter

Dissertations

Young adults with disabilities may experience difficulties with the daily living skill of meal preparation. Such skills are significant for independent living, employment, and overall quality of life. Previous research has identified video prompting daily living skills as an effective practice that supports independent living. Furthermore, research on young adults with disabilities and video prompting daily living skills has shown an increase in the percentage of correct responses for meal preparation, compared to no use of video prompting. The purpose of the present study was to teach and assess three cooking recipes as a daily living skill for seven young …

3d Automated Surgeon’S Hand Motion Assessment Using A Cascade Fuzzy Supervisor During Intelligent Box-Trainer System Skills Training In A Multi-Thread Video Processing, Fatemeh Rashidi Fathabadi

Dissertations

For certain surgical procedures, Minimally Invasive Surgery (MIS) has become more advantageous than traditional open surgery. Therefore, mastery of laparoscopic skills is an essential component of surgical training and requires considerable time and effort. The Fundamentals of Laparoscopic Surgery (FLS) program has been developed as a tool to improve and assess fundamental surgical skills. In fact, using a low-cost Box-Trainer or a simulator, laparoscopic surgeons are required to train using a set of structured tasks that can be objectively used to assess their laparoscopic skills, which must be mastered before carrying out real-life laparoscopic procedures. These tasks include peg transfer, …

Quasi-Monte Carlo Estimation For Functional Generalized Linear Mixed Models., Ruvini Kumari Jayamaha Hitihamilage

Dissertations

Functional Data Analysis (FDA) is a topic of growing interest in the statistics community and is applied in a wide range of fields such as Anthropology, Epidemiology, Meteorology, Neurology and Engineering. The data in FDA are smooth curves or surfaces in time or space which can be conceptualized as functions. Because of the smooth nature of the data and the measurements are highly correlated, making the classical methods such as univariate or multivariate analysis are infeasible for such data. Functional data Analysis (FDA) deals with these kinds of more detailed, complex, and structured data.

In this dissertation, we propose a …

The Synthesis, Characterization, And Application Of Polysaccharide-Based Additive To Improve Wet And Dry Strength And High-Barrier Properties Of Paper Products, Cornellius Marcello

Dissertations

Paper products play an essential role in our daily lives owing to their low cost, environment-friendly character, renewability, and recyclability. Paper manufacturers have been using petroleum-based strength additives (cPAM, GPAM, PAE) to meet the perceived needs of customers. On the other hand, paper produced from cellulose is hydrophilic and porous, leading to shallow water and grease resistance, causing paper manufacturers to use many kinds of coating materials such as poly-fluoroalkyl substances (PFAS) and synthetic plastic to improve water resistance, especially for food packaging paper products like cups, plates, food boxes, and packaging. However, PFAS are identified as likely carcinogenic to …

A Model For Spacecraft Relative Motion Using Continuous Periodic Thrust, Philip Alan Hittepole

Dissertations

A model for modifying the relative orbit of a deputy satellite with respect to a chief satellite in a near-circular orbit using continuous periodic thrust is presented. This model is built on the Lovell-Spencer relative orbital elements (ROEs). The four linear ROEs (xr, yr, ar, and Az) can be linearly modified. The two angular ROEs (Er and ) can be set to advance at a desired, constant rate. Each ROE can be modified individually but may cause intra-orbit variations in other ROEs which return to their original values at the end of a thrust cycle. A method to easily calculate …

Effects Of A Taekwondo-Inspired Intervention Program On Children With Adhd, Zubaida Fares Shraim

Dissertations

Exercise and physical activity are beneficial for individuals with Attention Deficit Hyperactivity Disorder (ADHD). The main aim of this study is to investigate the effect of a Taekwondo-inspired intervention program on children with ADHD in the UAE context. The research utilized a mixed methods/quasi-experimental design approach, consisting of two phases. Within the first phase, a promising intensive intervention for children with ADHD has been implemented for five weeks, four sessions weekly. The sample of the first phase consisted of four children aged 8-10 years diagnosed with ADHD. Three assessment instruments were used to collect data in phase one and explore …