Digital Commons Network^™

Scalable Time-Stepping For Navier-Stokes Through High-Frequency Analysis Of Block Arnoldi Iteration, Brianna Bingham

Dissertations

Existing time-stepping methods for PDEs such as Navier-Stokes equations are not as efficient or scalable as they need to be for high-resolution simulation due to stiffness. The failure of existing time-stepping methods to adapt to changes in technology presents a dilemma that is becoming even more problematic over time. By rethinking approaches to time-stepping, dramatic gains in efficiency of simulation methods can be achieved. Krylov subspace spectral (KSS) methods have proven to be effective for solving time-dependent, variable-coefficient PDEs. The objective of this research is to continue the development of KSS methods to provide numerical solution methods that are far …

The Importance Of Responsiveness: Improving Health-Related Outcomes Among Ostomates, Carrie Reif

Dissertations

More than 750,000 individuals in the United States live with an ostomy appliance, and additional 130,000 patients undergo ostomy surgery each year (United Ostomy Association of America, 2018). Although a life-saving procedure, patients confront significant physical (e.g., bowel routine and activity levels) and emotional (e.g., poor body image and depression) challenges that impede the adjustment process. When faced with health-related threats, the transactional action model of stress and coping argues that patients use strategies, such as seeking support, to effectively cope. However, because of perceptions of felt and enacted stigma and health-related uncertainty, some patients conceal ostomy-related issues and limit …

John Cage’S ‘Rock’ Music: Ecocritical And Performance Considerations In Ryoanji For Solo Oboe And Percussion Obbligato (1983), Everette Smith

Dissertations

In the years following World War II, several American composers began breaking from the confines of music notation relegated to five lines and four spaces. Of particular interest to this study, John Cage (1912–1992) began liberating his compositions from the restraint posed by traditional notation in 1951 with his work Imaginary Landscape No. 4. He continued to create and develop varying systems of graphic notation with his indeterminate works, which became increasingly influenced by his interest in the environment and in South and East Asian aesthetic and philosophical considerations, themselves environmentally influenced. One of the latest products of Cage’s coalescence …

Essential Leadership Competencies For College Presidents In A Metrics-Driven Community College System, Mark Mclean

Dissertations

Leaders in higher education face more change than ever before in a complex, challenging, and continually shifting social, political, and economic environment (Kezar & Holcombe, 2017). As a result, presidents are increasingly accountable for performance and metrics serve as an important component of accountability (PricewaterhouseCoopers, 2017). However, presidents may not possess the “rare combination of skills that enables them to be both strong transactional and operational leaders as well as more visionary and transformational ones” (Pelletier, 2016, p. 31). As a consequence, leadership failure produces significant adverse results for presidents and institutions including the loss of positions and the threat …

Chemical And Physical Modification Of Thiol-Ene And Epoxy-Amine Networks For Advanced Control Of Gas Transport And Flame Retardant Behavior, Vivek Vasagar

Dissertations

Crosslinked polymers are widely used due to its several advantages not limited to high mechanical strength combined with the easy processability. Despite of its popular usage, the fundamental understanding of polymer structure affecting the desired properties is still lacking. This PhD thesis is in two parts, the first part is devoted to the design and developing a basic understanding of structure and chemical composition dependencies of gas transport, whereas in the second part a fundamental relationship between structure to the fire-retardant properties is established.

Membrane based gas separation technique has attracted interest of selective removal of carbon dioxide gas from …

Effect Of Cure Protocol On Network Formation And Properties Of Epoxy-Diamine Thermosets, Andrew Janisse

Dissertations

The understanding of thermoset cure has, traditionally, been limited to the analysis of a single degree of cure value obtained via techniques such as dynamic scanning calorimetry (DSC). These analyses limit the scope of understanding of network development during cure. The continued development of rapid cure matrix chemistries necessitates the advancement of analytical techniques capable of quantifying how thermal cure profiles influence crosslinked network architectures throughout cure. This dissertation investigates and elucidates the mechanisms of polymer network growth through glassy epoxy/diamine thermoset to improve the way network growth is tracked and inform the role of cure protocol on network formation. …

Enhancement Of Krylov Subspace Spectral Methods Through The Use Of The Residual, Haley Dozier

Dissertations

Depending on the type of equation, finding the solution of a time-dependent partial differential equation can be quite challenging. Although modern time-stepping methods for solving these equations have become more accurate for a small number of grid points, in a lot of cases the scalability of those methods leaves much to be desired. That is, unless the timestep is chosen to be sufficiently small, the computed solutions might exhibit unreasonable behavior with large input sizes. Therefore, to improve accuracy as the number of grid points increases, the time-steps must be chosen to be even smaller to reach a reasonable solution. …

Improving Individual And Group-Wide Behaviors In Head Start Classrooms With Mystery Student Intervention: Assessment Of Effectiveness, Generalization, And Maintenance, Jamie Pasqua

Dissertations

The current study investigated the effects Mystery Student intervention on improving individual and group behaviors in Head Start classrooms. Mystery Student Intervention is a randomized independent group contingency and has only been investigated in one previous study (Pasqua, 2016). A multiple baseline design across three Head Start classrooms was employed to determine the effectiveness of Mystery Student Intervention on decreasing aggregate class and individual child disruptive behaviors. Of further interest was the extent to which the effects of Mystery Student Intervention generalized to other settings and results maintained following its removal. Results indicated that Mystery Student Intervention was effective at …

Probably Nothing To Worry About, Jennifer Bravo

Dissertations

These are (allegedly) poems.

Bioinspired Glycopolymers: Models To Investigate The Effect Of Saccharide Structure And Concentration On Amyloid Beta Aggregation, Pradipta Kumar Das

Dissertations

Aggregation and subsequent deposition of amyloid-β (Aβ) peptide on neuronal cell membranes have been implicated as a cause of Alzheimer’s disease. Gangliosides in their clustered form seed and promote the Aβ aggregation process. However, the effects of the structure and the concentration of ganglioside saccharides on Aβ aggregation are not well understood. We investigated how the specific structure of saccharides (β-D-galactose and β-D-glucose) affect the aggregation pathways, kinetics, and the aggregated structures of Aβ via in vitro experiments. The effects of the local concentration of saccharides on the Aβ aggregation were also investigated.

To mimic the multivalent effect of the …

Simulation As Replacement For Traditional Clinical In Pre-Licensure Nursing Education: Outcomes Of Different Ratios Of Replacement Time For Traditional Clinical With Simulation, Tiffany Zyniewicz

Dissertations

The use of simulation in nursing education has grown over the last 30 years. The National Council of State Boards of Nursing National Simulation Study indicated that up to 50% of traditional clinical hours can be replaced with simulation at a 1:1 replacement ratio and produce the same outcomes. A review of the literature indicated that there is no standard replacement ratio for simulation time to traditional clinical time being used in pre-licensure nursing education in the United States. The purpose of this study was to explore the outcomes of utilizing a 1:1 simulation-to-traditional clinical time replacement ratio and a …

Evaluating Corrosion Altering Properties Of Thiophene Based Copolymers, Robert Peterson

Dissertations

There is an important and ongoing debate on how or whether conductive polymers (CP) alter corrosion performance with some researchers reporting that CPs ultimately accelerate corrosion and others saying CPs, if understood could possibly replace the world’s best standard for corrosion prevention, i.e., chromium based inhibitors. The primary project goal was to improve our understanding of how CPs alter corrosion chemistry by 1) controlling the polymer structure and 2) in-turn the properties and then 3) targeting the best protocol for fast corrosion kinetic evaluation.

We detail the copolymer synthesis results and shift in corrosion protection properties for …

Suspended Sediment And Particulate Matter Transport In Mississippi Sound And Bight Assessed With Physical Modeling, Remote Sensing And In Situ Measurements, Stephan O'Brien

Dissertations

Tidal passes between Mississippi Sound (MS Sound) and Mississippi Bight (MS Bight) act as a transport pathway for the exchange of estuarine discharge and suspended particulate matter. A better understanding of sediment and particulate matter exchange can provide insights into turbidity, nutrient supply and aquatic ecosystem health for the region. This work examined the effects of different forcing factors (e.g. wind and tides) on the advection of suspended sediments and particulate matter in the study area. Fieldwork included particle size distribution, Acoustic Doppler Current Profiler (ADCP) and conductivity-temperature-depth measurements in the MS Sound and MS Bight from summer 2015 through …

Bottlenose Dolphin (Tursiops Truncatus) Vocal Responses To Sonar And Spectrally Pink Background Noise, Maria Zapetis

Dissertations

As human populations rise, the level of man-made noise increases globally. Naval sonar and boat traffic are underwater sound sources of particular concern to marine mammal welfare. To better understand the impact of these noise increases on cetaceans, studies can explore animals’ behavioral changes in response to noise. Studies have investigated the ‘dose-response’ relationship between the received sound pressure level of sonar signals and the behavior of cetaceans in the wild, but exposure studies in controlled environments are limited. The studies in this dissertation examined bottlenose dolphin vocal modifications during various experimental noise treatments. Acoustic recordings previously obtained for bottlenose …

Traditional Irish Musical Elements In The Solo-Piano Music Of Ryan Molloy, Brian Thomas Murphy

Dissertations

Music in Ireland has become increasingly popular in recent decades. There is no shortage of Irish musical groups, recordings, and live performances featuring Irish music both in Ireland and abroad. Contemporary art music in Ireland has also seen an increase in support and notoriety. Irish composers face a decision of how, if at all, to engage with traditional folk music that is so prominent in their culture. Ryan Molloy (b. 1983 in Pomeroy, County Tyrone, Northern Ireland) is a composer and performer who incorporates elements of traditional Irish music in the context and in the language of modern art music. …

Moderating Effect Of Homeschooling On Retention And Academic Achievement Of Stem Majors At A Private, Faith-Based, Liberal Arts College, Aresia Watson

Dissertations

Previous research has indicated that homeschooling is a growing trend within the U.S. Previous research has also indicated that less than one half of students who begin a STEM major at postsecondary institutions will complete their degree. This study sought to look at the possible moderating effect homeschooling has on the academic achievement and retention of STEM majors at a private, faith-based liberal arts college using a modified version of Tinto’s Model of Student Departure.

Independent sample t-tests were used to compare means and intercorrelations of homeschooled students and traditionally schooled students in unmatched and matched samples for several academic …

Elementary Preservice Teacher Preparation To Teach Mathematics And Science In An Integrated Stem Framework, Kelly Overby Byrd

Dissertations

This study investigated the extent to which successful completion of integrated mathematics and science methods of instruction courses related to elementary preservice teachers’ attitudes toward and confidence in teaching integrated STEM lessons, and the extent to which their attitudes and confidence correlated with their proficiency in planning integrated STEM lessons. A mixed-methods, longitudinal research design, with a sequential, explanatory approach was used. Participants included twenty-four elementary preservice teachers enrolled in their final two semesters of a teacher preparation program at a four-year public university in the southeastern U.S. To address the research questions in this study, both quantitative and qualitative …

Tracing Sehnsucht To Place: Mythopoeia, Visions, Transcendence, And The Journey Of The Rhetorical Refugee, G. Brandon Knight

Dissertations

This dissertation seeks to explicate a rhetorical conceptualization from C. S. Lewis’s notion of longing, or sehnsucht, in hopes of extending its employment to two other contemporary contexts—Christian Hedonism and American Humanism. To do so, I utilize the method of rhetorical criticism to analyze Lewis’s most famous sermon entitled The Weight of Glory. Following this paradigm chapter, I then compare uses of longing within the contemporary evangelical philosophy called Christian Hedonism initiated during the eighties through the seminal text entitled Desiring God: Meditations of a Christian Hedonist. In doing so, I uncover distinct aspects of longing within …

Supervisor-Subordinate Conflict Negotiation: Examining The Core Concerns In Light Of Communication Accommodation And Gender Roles, Piyawan Charoensap-Kelly

Dissertations

This quasi-experimental study examined a supervisor-subordinate negotiation of an emotion-laden conflict from the lens of the core concerns framework, communication accommodation theory, and gender roles research. Results empirically support CCF that, by accommodating or attending to the employees’ core concerns, managers can stimulate employees’ positive emotion and integrative intention. However, under- and overaccommodating the core concerns can lead to distributive intention. Additionally, the employees’ perception of manager goodwill can strengthen or attenuate the positive effect of core concerns accommodativeness on outcome variables especially for male managers. Thus, moderate accommodation is recommended for male managers. For female managers, the results show …

“Goth Barbies”: A Postmodern Multiperspective Analysis Of Mattel’S Monster High Media, Danianese Woods

Dissertations

This research examines the historical, cultural, and social context in relation to the monster characters of Mattel’s Monster High, a franchise about animated dolls that are the offspring of famous horror monsters. The animated dolls are an intersection of complex gender and racial identities that are constructed in a postmodern reality. The goal of this research is to formulate a more complex understanding of the social and cultural contexts, relationships, interactions and meanings within production, circulation, and distribution of Monster High media.

The preferred reading of the Monster Highseries is postmodernism. Monster Highdisplays a multitude of postmodern …

Exploring A University System Through Organizational Communication Routines Involving Risk, Sean Fourney

Dissertations

Given the nature of differing risks that can damage higher education institutions, perception from leaders’ perspectives is crucial in viewing organizational behavior regarding potential damage to the system. This case study investigated how a university staff perceives, communicates, and organizes about risk. Thirty interviews (27 one-on-one, 2 via email, and 1 over the phone) with campus leaders sought to identify how those in a higher education institution collectively communicates elements of risk within and beyond its environment while potentially forming relationships in attempts to mitigate it. An applied thematic analysis revealed that informants perceived risk as a system issue to …

Investigating Diel Periodicity In Export Flux In The Gulf Of Mexico Using A Particulate Imaging System, Justin Edward Blancher

Master's Theses

To estimate the diurnal periodicity in the biological pump, a floating array with a marine snow camera system at 150 m depth was used, and particles were imaged at a 40 second interval for a 24 to 30 hour period at five sites in the Gulf of Mexico in June 2017. Each image was processed to identify and size all the particles within the frame, which was then processed to determine diameter, an estimated volume, and settling speed for each particle. Using these parameters, particle mass was estimated using algebraically rearranged calculations for settling speed. Each hour during the deployment …

The Effects Of Salinity On Zootechnical Performance Of Spotted Seatrout (Cynoscion Nebulosus) In Recirculating Aquaculture Systems, Eric Gigli

Master's Theses

The spotted seatrout (Cynoscion nebulosus) is a euryhaline finfish candidate for marine aquaculture in the northern Gulf of Mexico. Aquaculture of this species currently uses salinities of 25 psu or greater making production challenging in areas where high salinity water is not available. This study aimed to document the effects of salinity on zootechnical performance of spotted seatrout embryos, early larvae, and juveniles in recirculating aquaculture systems to assist with the development of protocols for low salinity culture.

Embryos obtained from a volitional spawn at 29 psu were incubated at three salinities (12.5, 18.75, or 25 psu) until …

Impressions Of Viability: How Current Enrollment Management Personnel And Former Students Perceive The Implementation Of A Chatbot Focused On Student Financial Communication, Courtney Robinson

School of Education Doctoral Projects - Higher Education

The increasingly competitive modern higher educational environment has forced student services professionals to increase focus on recruitment and retention, which corresponds with an expanding body of scholarly literature and research on retention practices (Moore, Hossler, Ziskin, & Wakhungu, 2008). These large-scale recruitment and retention goals coincide with significant declines in state and federal funding, leaving many financially-limited institutions struggling to balance higher expectations and declining resources. Oftentimes, institutions seek out technological platforms that streamline the workload, while remaining cognizant that selected platforms must appeal to the current student population, the technologically-savvy Generation Z (Castillo, 2018; Stillman & Stillman, 2017).

Outside …

The Rebel Made Me Do It: Mascots, Race, And The Lost Cause, Patrick Smith

Dissertations

Public memory is commonly tied to street names, toponyms, and monuments because they are interacted with daily and are often directly associated with race, class, and regimes of power. Mascots are not thought of in the same manner although they are present as part of everyday life. The childish or sometimes comedic nature of the mascot discounts it from many considerations of its influence, symbolism and history. Nonetheless this research focuses on the term “Rebel” as a secondary school mascot. The term possesses the trappings of race because the American vernacular ties the word to the Confederate States of America …

Providing Preventive Health Education And Developing A Referral Policy And Toolkit To Increase Access To Primary Care For Individuals With Mental Illness, Phaedra Mclin, Stephanie Myers

Doctoral Projects

Treatment rates in primary care for the mental health population is traditionally low. Individuals with mental illnesses were at a higher risk for the development of chronic health problems (Ross et al., 2015). Substance Abuse and Mental Health Services Administration (SAMHSA) indicated that many people with serious mental illness die from preventable diseases. People with serious mental illness also have a higher mortality rate than those in the general population (SAMHSA, 2017b).

The purpose of this Doctor of Nursing Practice (DNP) project was to determine if educational training regarding specific chronic disease conditions influenced the attitude and knowledge of the …

Does The Use Of An On-Q Pump Improve Postsurgical Outcomes In Patients With Secondary Chronic Shoulder Pain?: A Retrospective Study, Deborah Thompson-Spencer

Doctoral Projects

Orthopedic shoulder surgery is a common therapy for many medical conditions, but the healing process for orthopedic shoulder surgery can be adversely impacted by chronic shoulder pain. Frequently, chronic pain is not adequately controlled by opioid analgesics provided to patients during the surgical healing process, resulting in greater pain and diminished postsurgical mobility. The focus of this Doctor of Nursing Practice project was to examine the question of whether, among male and female adult patients (40-64 years of age) with a history of secondary chronic shoulder pain lasting three or more months who have undergone orthopedic shoulder surgery, the use …

Actualizing Best Care Practices At A Psychiatric Treatment Center To Validate The Asset Of An On-Site Electrocardiogram, Pamela Metts

Doctoral Projects

Considerations to be contemplated in daily health delivery systems are complex and require varied approaches to deliver best-care processes that produce optimal patient outcomes. Specialty practice sites not only require the capability but also necessitate proficiency and dedication in meeting and exceeding essential healthcare competencies. A psychiatric treatment center specialty practice was the setting for this DNP project. The focus of this project included: (1) care resourcefulness, (2) safety initiatives, (3) increased privacy and confidentiality compliance, and (4) cost-efficiency measures.

Technology use beyond the security of the safety available within the treatment complex is a current policy at the psychiatric …