Digital Commons Network^™

Automated Acoustic Arrival Matching For Long Range Subsurface Positioning Of Autonomous Seagliders, Cristian Eric Graupe

Open Access Dissertations

An automated method was developed to align underwater acoustic receptions at various depths and ranges to a single reference prediction of long range acoustic arrival structure as it evolves with range in order to determine source-receiver range. Acoustic receptions collected by four autonomous underwater vehicles deployed in the Philippine Sea as part of an ocean acoustic propagation experiment were used to demonstrate the method. The natural sound speed duct in temperate waters known as the Sound Fixing and Ranging (SOFAR) channel enabled stable acoustic transmissions measured at ranges up to 700 km. The arrivals were measured in the upper 1000 …

Bacterial Community Dynamics In Rhode Island Coastal Ecosystems, Zachary Pimentel

Open Access Dissertations

In temperate coastal ecosystems, there are a variety of potential environmental niches and lifestyles for bacteria to occupy, along with constantly changing environmental conditions. Residing in such a diverse environment with broad habitats, bacterial adaptation can be observed at both the community and genome level. For example, an individual strain may acquire new mutations or genes to respond to varying conditions or occupy a new niche. In addition, the taxonomic composition of bacterial communities can shift, resulting in higher abundances of strains specialized for a new condition. In this dissertation, community and genome-level adaptations to varying lifestyles and environmental change …

Parenting Style And Help-Seeking For Child Anxiety And Depression: A Vignette Study, Hayley Pomerantz

Open Access Dissertations

Anxiety and depression are known to have a significant impact on the daily functioning of children and their families; yet only a fraction of diagnosed children receive treatment from professional mental health services. To better understand the discrepancy between high rates of child psychopathology and low rates of mental health service use, the current study examined parenting style and the time at which a parent decides to seek mental health treatment for their child. The current study hypothesized that parents would seek help when their child's symptoms and interference were moderate. It also hypothesized that parents with an authoritative or …

The Self-Health Movement: Changing For Good Health, Julian Michael Saad

Open Access Dissertations

Each person's efforts to support their personal health deserve to be supported and valued by those providers, researchers, and politicians that take a vested interest in the health of populations. Although there are scientific fields, like Population Health, that are committed to supporting equitable patterns of health across populations, there remains a very real absence of a unifying framework that can coordinate the very essential efforts of persons, populations, providers, researchers, and politicians. There is a great need for a generally-accepted and widely-used way of communicating to individual persons and general populations about the science of their health and the …

The Synthetic Development Of Innovative Supramolecular Architectures For The Purposes Of Drug Delivery And Biosensing, Lauren Elizabeth Seveney

Open Access Dissertations

When I first started my graduate journey at The University of Rhode Island, I knew I wanted to pursue my research in an organic chemistry research group. I was drawn to the DeBoef Group, as their research was profoundly interesting in the sense where the group conducted research in various fields. Where each group had a name amongst the graduate students, such as “the nanopore group”, or “the polymer group”, the DeBoef Group was just what it truly is at heart, “the synthesis group”. I always wanted to be a synthetic chemist, I enjoyed the work, and taking something from …

Associations Among Affect, Alcohol Use, And Risky Sex: A Daily Diary Study Of First Nation Adults, Melissa R. Schick

Open Access Dissertations

Introduction: Optimal subjective well-being is comprised of high levels of positive affect, low levels of negative affect, and overall satisfaction with one’s life. Some literature has connected each component of subjective well-being with health risk behaviors including alcohol use and risky sexual behavior. While there is diversity in rates of alcohol use and risky sexual behavior among North American Indigenous (NAI) populations, they experience disproportionate rates of negative consequences associated with these behaviors (e.g., physical, social, legal). Approaches to reducing health disparities that emphasize improving well-being may be well-accepted among NAI communities given their calls to focus on protective, …

Advanced Water Treatment And Reuse With Activated Ferrate, Charles D. Spellman

Open Access Dissertations

Ferrate is a promising, emerging water treatment technology. However, there has been limited research on the application of Ferrate in a water reuse paradigm. Recent literature has shown that ferrate oxidation of target contaminants could be improved by "activation" with the addition of reductants or acid. This study examined the impact of sulfite-activated Ferrate in laboratory water matrix and spiked municipal wastewater effluents with the goal of transforming organic contaminants of concern (e.g., 1,4-dioxane) and inactivating pathogenic organisms. Additionally, the formation of brominated disinfection byproducts by activated ferrate were examined and a proposed reaction pathway for byproduct formation is presented. …

Effects Of Surface Waves On Wind Stress And Upper Ocean Response Under Tropical Cyclones, Xiaohui Zhou

Open Access Dissertations

Evolution of a tropical cyclone (TC) is strongly affected by the supply of heat from a warm ocean surface. When strong TC wind enhances upper ocean turbulence, deepens the mixed layer, and cools the sea surface temperature (SST), the reduced SST decreases the heat flux to the atmosphere and weakens the storm. The cool-water entrainment can be further enhanced by three-dimensional processes, notably by upwelling due to Ekman pumping. Therefore, accurate prediction of these upper ocean responses to a TC is critically important for improving TC intensity forecasts.

Since the upper ocean responses are driven by the applied wind stress, …

Self-Reported And Behavioral Perseverance Associated With The Maintenance Of Health Behaviors, Alivia Kay Frazier

Graduate Theses, Dissertations, and Problem Reports (ETD)

Research has shown that positive psychological traits, such as perseverance, may be associated with the maintenance of health behaviors aimed to prevent commonly fatal diseases (e.g., cardiovascular disease, stroke). Although there is limited research in this area, the current study examined whether there was an association between self-reported perseverance, behavioral perseverance, and distress tolerance with various health behaviors (e.g., sleep, physical activity, nutrition, vaping, alcohol use, general health status, and COVID-19 behaviors). A novel methodology was implemented for this study that employed using the online mirror tracing task as a measure of behavioral perseverance.

A sample of young adult participants …

Ecology Of Black-Legged Ticks (Ixodes Scapularis) At Fort Drum Military Installation, New York, Lucas Eli Price

Graduate Theses, Dissertations, and Problem Reports (ETD)

The number of confirmed cases of Lyme disease in the United States of America has risen from 12,801 cases reported in 1997, which is the earliest year these data are available, to 23,453 confirmed cases in 2019. In the eastern United States, black-legged ticks (Ixodes scapularis) are the primary vector of Lyme disease, which is caused by the spirochete bacterium, Borrelia burgdorferi. Tick abundance tends to be highest in dense forest habitats and where wildlife diversity is low. Because wildlife species have varying levels of competency as reservoir hosts, sources of tick bloodmeals influence Lyme disease ecology. …

Survival Rate Of Dental Implants Placed In Alveolar Ridge Preservation Sites - Systematic Review, Sravanthi Papisetti

Graduate Theses, Dissertations, and Problem Reports (ETD)

Introduction: It is not known so far performing Alveolar Ridge Preservation (ARP) in a freshly extracted socket with intact walls would improve clinical outcomes of implants placed in these sites. It is not known whether different biomaterials and techniques would affect the survival of dental implants.

Aim: The current systematic review is undertaken to assess the survival rate of dental implants placed in these sockets and to assess different socket graft materials as well as techniques of ridge preservation with regard to the survival of implants.

Material methods: Search for relevant articles was done in Medline (PubMed). No …

Representation Of Muslims In Time Magazine: A Corpus Linguistic Study, Constantia Rhinehart

Graduate Theses, Dissertations, and Problem Reports (ETD)

This thesis sought to explore the representation of Muslims in US-American

Press. In order to do this, the Time Magazine Corpus was used to observe words that collocate with the word “Muslim” in Time Magazine. The frequency of the word “Muslim” was observed for each decade and coded to determine the semantic prosody of each token. The 1960s-2006 were observed in order to provide a more comprehensive view of Muslim representation in Western media and how this representation has changed over time. The majority of collocations were considered to be neutral, however, a large number of collocations were considered …

Examining The Efficacy Of A Self-Paced Online Training For Goal Writing, Allison Rosborough

Graduate Theses, Dissertations, and Problem Reports (ETD)

Educational goals can control critical aspects of intervention and progress monitoring for students with disabilities and as such are a central feature of Individualized Education Programs (IEPs). Despite its importance, school staff frequently report not receiving enough training or support on IEP documentation. Rosborough and Brandel (2020) investigated the quality of IEP goals written in the state of West Virginia. Findings indicated that professional development activities needed to be designed and analyzed related to immediate and long-term efficacy. The purpose of this study was to evaluate the efficacy of a self-paced, online training for goal writing. Participants were recruited by …

Evaluation Of Cross-Laminated Timber Panels Produced With Yellow-Poplar (Liriodendron Tulipifera), Rafael Da Rosa Azambuja

Graduate Theses, Dissertations, and Problem Reports (ETD)

Cross-Laminated Timber (CLT) panels are engineered wood products breaking into the building sector. Currently, the range of raw materials used in CLT is still limited to softwoods, while some hardwood species such as yellow-poplar could potentially be used to produce this wood product. Therefore, the main goal of this research was to assess the feasibility of using Appalachian Hardwoods in the production of Cross-Laminated Timber panels. Specifically, the objectives of the research were to 1) Determine the amount of yellow-poplar structural lumber that can be obtained from a representative population of low-grade, yellow-poplar lumber graded for appearance; 2) Evaluate whether …

How Do Higher Education Teaching And Learning Centers Contribute To An Institutional Culture Of Assessment?, Tracey Jean Beckley

Graduate Theses, Dissertations, and Problem Reports (ETD)

Teaching and learning centers in higher education are often charged with providing faculty development programming in support of overarching institutional goals related to effective teaching and assessment of student learning. Using the theoretical frameworks of Maki and Weiner as a launch pad, this exploratory case study examines how two teaching and learning centers have provided services, implemented programming, and strategically affected cultural change among faculty and other stakeholders in support of an institutional culture of assessment. The study revealed four thematic strands to consider when developing practical ways for teaching and learning centers to contribute to a culture-building endeavor in …

Framing Fashion Sustainability In Fashion Magazines, Kristen Ann Mohammadi

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study explores the framing, dominant frame, story focus, and tone of sustainable fashion coverage in prominent fashion magazines, Vogue and Refinery29, seeking to understand if the publications frame their coverage differently and if the framing changes after the emergence of COVID-19. To do so, this study uses a sample consisting of articles from summer months (May-August) spanning three years (2019, 2020, and 2021), as COVID-19 was first discovered in the United States in 2020. This study uses content analysis methodology to analyze a total of 206 articles. This kind of research is important, as environmental and social issues stemming …

Genetic Assessment Of Lake Sturgeon Stocking Practices In Two Lake Superior Tributaries, Mary E. Akers

Graduate Theses, Dissertations, and Problem Reports (ETD)

Lake sturgeon were extirpated throughout much of their historic range in the early 1900s due to overharvest, habitat degradation, and reduced water quality. Interagency management plans have worked to identify historic locations and remnant populations suitable for stocking and habitat remediation to rebuild self-sustaining populations of lake sturgeon within their historic range. The St. Louis River population was extirpated in the early 1900s until lake sturgeon were stocked from 1983-2000 from two different source populations (Wolf River, Sturgeon River). Natural reproduction was confirmed in 2011 and F1 generation larvae were collected in 2017 (n = 41) and 2019 (n = …

An Analysis On Adversarial Machine Learning: Methods And Applications, Ali Dabouei

Graduate Theses, Dissertations, and Problem Reports (ETD)

Deep learning has witnessed astonishing advancement in the last decade and revolutionized many fields ranging from computer vision to natural language processing. A prominent field of research that enabled such achievements is adversarial learning, investigating the behavior and functionality of a learning model in presence of an adversary. Adversarial learning consists of two major trends. The first trend analyzes the susceptibility of machine learning models to manipulation in the decision-making process and aims to improve the robustness to such manipulations. The second trend exploits adversarial games between components of the model to enhance the learning process. This dissertation aims to …

Effects Of Depression And Stress On Oral Self-Care Among Perinatal Women In Appalachia: A Longitudinal Study, Jeongwi An

Graduate Theses, Dissertations, and Problem Reports (ETD)

Oral health during the perinatal period has an impact on the health of women and their offspring. Oral self-care behaviors are preventive methods that can be employed to maintain or improve oral health but may be compromised during the perinatal period. Identifying factors affecting oral self-care behaviors might provide direction on how to intervene in oral health during and after pregnancy. The purpose of this study was to investigate independent and interactive effects of depression and stress on oral self-care behaviors of perinatal women in Appalachia, given the burden of oral disease in this region. A total of 1,172 women …

Carbon Emissions, Abatement, And Natural Disasters: Politics And Social Institutions, Ritika Khurana

Graduate Theses, Dissertations, and Problem Reports (ETD)

This dissertation empirically examines three issues related to renewable energy and international development: 1) The Political Economy of Solar Initiatives in the Sunshine State; 2) Climate Change, Natural disasters, and Institutional Integrity; and 3) Institutional Integrity and Carbon emissions.

In Chapter 2, I empirically examine the outcomes of two solar energy amendments that were on the ballot in Florida in 2016. One amendment exempts solar energy devices from ad valorem taxation of real estate property, effectively decreasing the cost of solar energy for those who adopt solar photovoltaic panels. The other amendment reaffirms the right of property owners to install …

Exploring Cyberterrorism, Topic Models And Social Networks Of Jihadists Dark Web Forums: A Computational Social Science Approach, Vivian Fiona Guetler

Graduate Theses, Dissertations, and Problem Reports (ETD)

This three-article dissertation focuses on cyber-related topics on terrorist groups, specifically Jihadists’ use of technology, the application of natural language processing, and social networks in analyzing text data derived from terrorists' Dark Web forums. The first article explores cybercrime and cyberterrorism. As technology progresses, it facilitates new forms of behavior, including tech-related crimes known as cybercrime and cyberterrorism. In this article, I provide an analysis of the problems of cybercrime and cyberterrorism within the field of criminology by reviewing existing literature focusing on (a) the issues in defining terrorism, cybercrime, and cyberterrorism, (b) ways that cybercriminals commit a crime in …

The Effects Of Feed Additives And The Use Of A Novel Wood Boiler Heat Exchanger On Litter Quality, Broiler Performance, And Immune Status, Victoria Ayres

Graduate Theses, Dissertations, and Problem Reports (ETD)

Experiments were conducted to investigate the effects of varying feed ingredients and heating systems on boiler performance metrics. Chapter Two investigated the effects of two corn-expressed phytases, differing in enzyme concentration within the grain (3,000 or 9,677 FTU/g), on broiler performance and tibia mineralization, when used as a component in pelleted feed. Dietary treatments included a positive control (PC), with industry-recommended levels of calcium and phosphorous, and a negative control (NC), lower in calcium and non-phytate phosphorous. Six diets containing corn-expressed phytase at high or low grain concentrations, formulated to 3,000, 6,000, or 9,000 FTU/kg, were …

The U.S. Coal Industry: Market Structure & Implications, Sara Elizabeth Guffey

Graduate Theses, Dissertations, and Problem Reports (ETD)

The U.S. coal mining industry was once a booming industry which created and defined communities, particularly in Appalachia. The industry has, however, transformed significantly in the last couple of decades with the passage of environmental policies, with competition from the Shale Revolution, from changes in company ownership, and from mine safety regulation. Overall, the coal industry during this time has experienced a massive decline in production and employment. This dissertation is composed of three papers that investigate these mechanisms and their role in understanding market structure, coal transactions and prices, and mine safety outcomes. Motivated by the shutdowns of U.S. …

“The Illusion Of Collaboration”: An Integrated Examination Of The Antecedents, Processes, And Consequences Of Online Group Work, Jill Cathleen Woods

Graduate Theses, Dissertations, and Problem Reports (ETD)

Computer-supported collaborative learning (CSCL) presents postsecondary educators with a conundrum: how to design and support small-group activities without stifling deep and meaningful learning. The literature indicates that students are not consistently practicing higher-order cognitive activities, educators are not reliably designing or facilitating them, and/or researchers are not locating or identifying them where they are occurring. The aim of this dissertation is to explore these deficits by identifying the antecedent conditions that most affect collaboration. Specifically, I answer the question, how do learner’s prior knowledge, characteristics, and experiences manifest in their collaborative processes. Addressing a gap in the literature, this study …

Characterization Of Two Krab-Containing Zinc Finger Transcription Factors In Bovine Preimplantation Embryonic Development, Mingxiang Zhang

Graduate Theses, Dissertations, and Problem Reports (ETD)

Oocyte developmental competence or oocyte intrinsic quality describes the capability of oocytes to resume meiosis, cleave and develop to blastocyst stage after fertilization, implant and develop to term in a good health. A growing number of evidences indicate that the majority of embryonic mortality occurs during early embryonic development in different species, including human, horse and cattle primarily due to poor oocyte quality. Maternal effect genes are key aspects of oocyte quality, which are transcribed during the process of oogenesis and folliculogenesis. The maternal factors are accumulated in oocytes, orchestrating various early developmental events including fertilization, epigenetic reprogramming and zygotic …

Narrative Inquiry Of Early Career Teachers’ Experiences Teaching During The Covid-19 Pandemic, Kinsey Ann Wright

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study utilized narrative inquiry to learn the stories of early career teachers of students with disabilities as they navigated teaching during a global pandemic. Five early career teachers participated in a series of three semi-structured virtual interviews. Interviews were transcribed then analyzed using a six-phase approach to thematic analysis (Braun & Clarke, 2006). Nine themes were identified: Teaching, Communication, Parents, Special Education, Workload, Resources, Training and professional development, job satisfaction, and teacher preparation. Themes were organized and presented to answer the research questions of the study. The findings contribute to understanding pandemic-related challenges faced by early career teachers of …

Understanding Perceptions Of Vulnerable Roadway Users On Autonomous Vehicles, Md Tawhidur Rahman

Graduate Theses, Dissertations, and Problem Reports (ETD)

Public perceptions have been playing an important role in the development of autonomous vehicle (AV) technology. Besides AV and non-AV users, the perceptions of vulnerable roadway users are critical, as AVs will become a part of multimodal transportation system. Pedestrians and bicyclists are among the vulnerable groups of roadway users, as they are relatively unprotected compared to the occupants of AVs or non-AVs. Although AV’s capability to monitor other vehicles has been documented in many studies, there are concerns about AV’s capability in monitoring pedestrians and bicyclists. The overarching goal of this dissertation is to investigate the perceptions of pedestrians …

The Bigger Picture: Wrongful Conviction Documentary Thematic Vs Episodic Framing, Alecsandra N. Vac

Graduate Theses, Dissertations, and Problem Reports (ETD)

True crime documentaries have gained popularity in the past decade, but those focusing on wrongful conviction cases have been on the rise (Doughty, 2018). Advocates against wrongful conviction, such as the Innocence Project, have been utilizing entertainment media to increase awareness on the issues present in the criminal justice system. However, the framing of wrongful conviction causes and cases (ex: focusing on extreme accusations of police misconduct and intentional forensic evidence tampering) could lead to a bias in how the viewers understand how miscarriages of justice occur. The primary research question being investigated here is, how are these advocacy-recommended documentaries …

Experience Of Parents Caring For A Child With An Acquired Disability, Brad E. Phillips

Graduate Theses, Dissertations, and Problem Reports (ETD)

Background: Parents caring for a child with an acquired disability often report a negative impact on physical, psychological, emotional, and spiritual health associated with caregiver burden related to their child’s complex health needs. This is further complicated by additional challenges related to the loss of a previously healthy child. Traditional patterns of loss follow linear, time-bound stages that have been observed to be unrelated to the experiences of these specific parents and their families. Therefore, the concept transforming loss has been developed to better understand how these parents navigate loss and find meaning in spite of their suffering.

Purpose: The …

The Heart Of Everything In The Middle Of Nowhere: The Role Of Rural Identity In The Formation And Deployment Of Political Attitudes In Pennsylvania, Mikaela G. Zimmerman

Graduate Theses, Dissertations, and Problem Reports (ETD)

The world of American politics continues to infiltrate households across the United States as technological advancement extends the reach of breaking news and government action. With this expanding reach, communities all over the country are digesting and contemplating their place in national politics more fervently than ever. At the crux of this discussion is the backbone of political engagement and action—identity and its resulting political attitudes. For decades, partisanship has been a point of contention amongst American citizens. Cities across the nation showcase protests, demonstrations, town hall meetings, and more illustrating citizens’ care for their democratized input in government affairs. …