Digital Commons Network^™

Perceived Value Of A Vr (Virtual Reality) Tourism Experience: A Scale Development, Fernando Arroyo Lopez

Electronic Theses and Dissertations

Firms are skeptical about what values travelers anticipate obtaining from a Virtual Reality (VR) experience in tourism, and the valuation of trade-offs they are willing to make. This scale development aimed to fill this gap in the literature by creating a scale that can capture the perceived value derived from a VR experience in tourism. This research study adhered to well-established, mainstream psychometric scale creation and validation methods as demonstrated by several authors. This study provides a key step in developing measurement theory related to the perceived value derived from a VR experience in tourism and identifies four value dimensions: …

The Daughters Of Remington Taylor, Latoya Faulk

Electronic Theses and Dissertations

Synopsis

Feminine hygiene is a billion-dollar industry and women of color are the largest consumers of feminine hygiene products—particularly vaginal douching; studies link this frequent use of douching to high levels of harmful chemical compounds and adverse health effects. In researching hygiene rituals, the phrase “fresh and clean” came up repeatedly when Black women expressed feelings that came with their use or purchase of tampons, powders, soaps, sprays, douches, wipes, lotions, suppositories, napkins, and creams guaranteed to tame the odorous, fluid draining, and menstruating vagina.

FRESH AND CLEAN is a novel interested in the cultural obsession of vaginal cleanliness. The …

Sustained Delivery Of Carbon Monoxide (Co) Via Organic Co Prodrugs: Pharmacokinetic Studies, Minjia Wang

Electronic Theses and Dissertations

Carbon monoxide (CO) is widely known as poisonous gas. Its role as a signaling molecule (gasotransmitter) with various therapeutic effects is less known. Recent years have seen a surge of interest in CO because of its demonstrated therapeutic effect in treating conditions such as inflammation, drug-induced toxicity, ischemia-reperfusion injury, and kidney injury, among others. In developing CO-based therapeutic agents, one key issue is the availability of pharmaceutically acceptable ways of delivering CO. During the past decade, there has been a large number of experiments in cell culture, animal models, and clinical trials using CO gas incubation/inhalation and heavy metal based …

A History Of Freed Slaves' Homes In Northern Nigeria, 1900-1926, Ajibola A. Abdulrahman

Electronic Theses and Dissertations

This dissertation is about the children rescued from slave traders by the British colonial government in Northern Nigeria in the early twentieth century. The children were first settled in state-owned Freed Slaves Homes located at Zungeru and Borno provinces in 1904. After the state-owned Homes were abolished in 1909, they were moved to the privately-owned Lucy Memorial Freed Slaves’ Home. The study focuses on the experiences of these liberated children within the premises of the Freed Slaves' Homes and in settings outside of these institutions in Northern Nigeria. Drawing on previously unused archival materials obtained from various parts of the …

Formulation Development Of Famotidine Floating Tablets Using Hot-Melt Extrusion Coupled With 3d Printing Technique., Esraa Al Shawakri

Electronic Theses and Dissertations

The main goal of this study is to develop a floating tablet of famotidine using hot melt extrusion coupled (HME) with Fused deposition modeling FDM 3D printing technology. Seventeen different formulations were prepared to obtain printable HME filaments. Hydroxypropyl cellulose (HPL-LF), hydroxypropyl cellulose (HPLC-EF), Hydroxypropyl Methylcellulose (HPMC-E5), and Ethyl Cellulose (EC) were used as polymeric carriers with 10% (w/w) famotidine. Polyethylene Glycol 1500 (PEG-1500) was used as a plasticizer. The resulting physical mixtures were then extruded using an 11 mm twin-screw co-rotating extruder (Thermo Fisher Scientific, Waltham, MA, USA). The HME filaments were then printed using an FDM-3D printer (Prusa …

The Relationship Between Ethnicity, Immigrant Generation, & Delinquency: Examining Youth In Child Protective Services., Erin Leigh Geist

Electronic Theses and Dissertations

Although minority youth are overrepresented in the makeup of the welfare and juvenile justice system, there is a lack of research that examines dually-involved youth. In recent years, there has been an escalation in the number of Hispanic youth that have become involved in the child welfare system, including youth that identify as Hispanic immigrants. This study uses nationally representative data of children receiving welfare services to examine the relationship between ethnicity, immigrant generation, and delinquency. The results of binomial regression models illustrated that there was no effect of Hispanic ethnicity or immigrant generation on delinquency. However, the analysis provided …

"The Wild Asleep": A Cultural And Environmental History Of Ramps, Catherine Jessee

Electronic Theses and Dissertations

Ramps, wild onions, or allium tricoccum are a variety of spring ephemeral, or a flowering plant that emerges for a brief period every spring. In working through stereotypical ideas about Appalachian regional identity, I interpret the environmental history of this plant. Incorporating memory, oral histories, and folklore, this thesis complicates wider conceptions of home, community, and boundary. Tapping into an archive of ramps knowledge as it is created, I ask, what can the future of ramps tell us about place, space, and belonging?

Assessing The Effectiveness And Utility Of A Mindfulness-Based Ecological Momentary Intervention In College Students, Jeffrey Pavlacic

Electronic Theses and Dissertations

Mental health problems are common and increasing in college students. Despite the high prevalence rates of mental health problems in college students, a small percentage of students seek treatment. Low treatment seeking is associated with different factors, such as stigma, financial barriers, and emotion dysregulation. Identifying and delivering evidence-based treatments is critical to curtailing mental health problems and promoting psychological well-being in this population. One intervention that offers significant promise is Ecological Momentary Intervention (EMI), which incorporates technology to administer interventions. EMIs are widely applied for heterogeneous psychological problems and effective through different modalities. Mindfulness-based interventions (MBIs) ameliorate psychological distress …

Disclosing For Closure: Negotiating Boundaries For Self-Expansion After Violence, Jadah M. Morrison

Electronic Theses and Dissertations

The #MeToo movement has brought the narratives of survivors of sexual assault center stage. As we begin to understand the intricacies of these narratives, we must remember them in their first iteration, their initial disclosure. This study aims to understand the motivations behind the first disclosure of sexual violence. Through looking at these motivations through the lens of self-expansion theory, we can better support survivors of sexual violence in this initial process. Self-discrepancy theory was also used to understand survivors’ sense of self, and the motivations of how survivors seek refuge in their receiver. Thus, privacy management lends itself to …

E. Coli Persister Cell Survival And Rhizobia Attachment To Soybean Roots, Tanim Islam

Electronic Theses and Dissertations

The theme of this thesis revolves around how bacteria respond and thrive during stress. Chapters 1-3 are about how bacteria deal with life-threatening antibiotics. Chapter 4 covers new research on how bacteria can move from a stressful individual lifestyle (free-living bacteria) to initiating a symbiotic relationship with a plant (a less stressful lifestyle). In Chapter 1, I briefly summarize the current state of knowledge in the field of antibiotic resistance and persistence. In Chapter 2, I add to this knowledge by providing new insights into several antibiotics' potency and exploring the antibiotic Eagle effect. In Chapter 3, I use pyruvate …

Assessment Of Aged Woodchip Bioreactor Physical And Hydraulic Properties, Shelby Duncan

Electronic Theses and Dissertations

Denitrifying woodchip bioreactors are a critical tool for mitigating nitrate loading to downstream water bodies. The properties of the woodchip are a key factor in the design of the bioreactor which are usually designed to optimize that retention time of the water being treated. Retention time is affected by active flow volume, porosity, and flow rate. As a bioreactor ages, the carbon material will break down and, in some cases, sedimentation will occur within the bioreactor. Both processes will affect the porosity and hydraulic performance of the bioreactor. When flow through the bioreactor is significantly different than the original design, …

“By Following Them, I Was Able To Identify Things I Shared With Them” : Conceptualizing How Social Media Use Influences Genderqueer Identity Development, Margeaux Gaiani

Electronic Theses and Dissertations

Among young genderqueer people, social media can be used as a tool for gender exploration, building support systems, and identity validation. However, literature on how these processes are linked together over time to curate a holistic sense of identity is limited. Using a grounded theory framework, this study seeks to construct a model explaining how gender identity development is linearly influenced by social media use among young genderqueer (transgender, non-binary, genderfluid, etc.) individuals. 20 indepth interviews were conducted with genderqueer participants ranging in age from 18- 26 years old. Participants were recruited through personal contact, referrals, and social media posts. …

Evaluating Fungicide Timing, Efficacy, And Sensitivity As Well As Candidate Resistance Genes Against Fungi Causing Phomopsis Stem Canker In Sunflower, Ruchika Kashyap

Electronic Theses and Dissertations

Phomopsis stem canker is one of the major diseases of sunflower (Helianthus annuus L.) caused by complex of Diaporthe spp., in the U.S. This disease became of economic importance after 2010 epidemic in Minnesota, North Dakota, and South Dakota and since then the prevalence of this diseases has increased due to increased average precipitation in these major sunflower growing regions of the U.S. The two important disease management strategies involve the use of fungicides and partially resistant hybrids. However, over the years, researchers and growers have seen varied results on Phomopsis stem canker disease severity reduction and yield gains, when …

An Examination Of Trust In News Mediums By College Students: A Comparison Of Egypt And The Usa, Karim Soliman

Electronic Theses and Dissertations

Polls have shown a decline in trust in the USA when it comes to trust in Media. This study looks at if trust in news mediums really does matter. The study also compares a sample from USA to Egypt. The study finds that American college students have more trust in traditional news media but use it less than newer forms such as social media. The Egyptian sample has high trust in social media and low trust in traditional news media that are normally under the influence of the Egyptian government. The frame works used are the uses and gratification theory, …

Optimization Of Electrically Driven Fluid Flow Through Tissue Hydrogels, Joseph C. Walker

Electronic Theses and Dissertations

No abstract provided.

Ceo Types And Firm Efficiency, Lok Chi Lam

Electronic Theses and Dissertations

This paper investigates the connection between CEO types and firm efficiency. I utilize the general ability index (GAI) as a proxy to examine and separate CEO types: generalist CEOs and specialist CEOs. Initially, I applied the pooled ordinary least square (OLS) and fixed effect regression on 26,830 firm-year observations to explore the GAI effect on firm efficiency. The finding shows that GAI has a negative impact on firm efficiency. It indicates that CEOs with lower GAI are better at improving firm efficiency; for instance, specialist CEOs are preferable to generalist CEOs. Further analysis of CEO types using the quadrant method …

Outdoor Recreation Benefits And Promotion Through A Youth-Focused Program In State Parks, Kiley Foss

Electronic Theses and Dissertations

A family’s participation in outdoor recreation activities can provide numerous benefits to each individual. Children’s participation is influenced from various factors, but parents have one of the greatest influences on their child’s outdoor recreation behavior. The purpose of this study is to assess the outcomes of a statewide outdoor recreation program in relation to using state parks as outdoor wellness centers, as well as investigate the relationship between parents’ outdoor recreation participation and perception and their children’s outdoor recreation involvement. A total of 104 parents or guardians recalled their family’s participation in the Go Forth program. Those responses were analyzed …

Polymeric Nanovaccine Delivery System For Influenza Vaccine, Chaitanya K. Valiveti

Electronic Theses and Dissertations

Vaccines are the most efficient and cost-effective method for preventing illnesses caused by infectious pathogens. Even though the great success of vaccines over decades, the development of safe and robust vaccines is still essential for emerging new pathogens, re-evolving old pathogens, and improving the insufficient protection given by existing vaccines. One of the most critical strategies for developing effective new vaccines is selecting and using a suitable adjuvant or immune stimulant. Immunologic adjuvants are essential for improving vaccine potency by enhancing the immune response of vaccine antigens. The amount of antigen could be spared with improved potency, especially during mass …

Microbial Communities And Nitrogen Dynamics In Prairie And Cropland Soils, Bikram Kumar Das

Electronic Theses and Dissertations

Soil microbial communities are affected by many factors, such as soil nitrogen (N) and the quantity of grass-root exudates, changing seasons, fertilization method, plant diversity, and their origin. This holds for both natural and fertilized soils. This research was intended to expand the current understanding of soil microbial interactions associated with ecological functions. The objectives of the research were (I) to characterize prokaryotic soil communities, estimate functional potential, and quantify nitrogen cycle-associated prokaryotic gene expressions across three phases of the growing season, (II) to explore the diazotrophic community composition in a natural system using nifH sequencing as well as 16S …

Managing Water Quantity And Quality With Subsurface Drainage In Eastern South Dakota, Morghan Hurst

Electronic Theses and Dissertations

Moisture extremes (excess and deficit) impact crop loss and water quality. Due to excessively wet springs and dry summers, crop damage can occur within the same county or field within the same year. To determine the magnitude of this problem in eastern South Dakota, indemnified crop insurance data for drought and excessive moisture claims were assessed for the years 1991-2020 for the occurrence of both excess moisture and drought in four counties in eastern South Dakota. Results show that there is greater than a 70% chance of the moisture extremes happening in the same year, making subsurface drainage, controlled drainage, …

Exploring Bioprocessing Technologies For Diverse Industrial Application Of Canola, Ahmad Fawzi N Alhomodi

Electronic Theses and Dissertations

Globally, canola is the second largest oilseed crop after soybean, which is processed for the commercial production of high value oil. The industrial processing steps for canola oil extraction include preprocessing (cleaning, pressing, flaking, and cooking), mechanical pressing, and/or organic solvents. This process results in large quantities of protein-rich (~ 40% dry basis) meal as a co-product. The meal is used partially in animal diet (<30% inclusion) due to high levels of antinutritional factors (ANFs) such as high fibers, phytic acid, and glucosinolates, and low metabolizable energy. Thus, this research was designed to examine various bioprocessing technologies (i.e., traditional sprouting, solid state fermentation, submerged state fermentation, co-culture fermentation, mild pretreatments, and their combinations) for possible advancement in canola use. Canola seed sprouting for 6-day period led to an increase in protein content and a reduction in ANFs and oil content of sprouts compared to ungerminated seed. Subsequent submerged state fermentation of 6- day old sprouts using three different strains (Aureobasidium pullulans, Trichoderma reesei and Neurospora crassa) further increased protein content and lowered ANFs. Solid-state fermentation of 144 h old sprouts using A. pullulans, N. crassa and T. reesei enhanced the protein content and reduced ANFs of sprouts. Sprouting canola seed for three days helped in hull removal, leading to high protein meal accompanied by low fiber and phytic acid level. Three-day seed sprouting had no effect on oil yield, but free fatty acid content was higher compared to seed oil. Co-culture fermentation of HECM under solid state process showed maximum reduction in fiber content with co-culture of A. pullulans and N. crassa while a combination of A. pullulans and T. reesei promoted the highest GLS and phytic acid reductions compared to other combinations, which indicated the advantage of coculture inoculation over monoculture in terms of ANFs reduction. Mild pretreatment of HECM using deionized water resulted in washed HECM (WHECM) with lower soluble sugars and GLS compared to untreated HECM, whereas protein and amino acid were concentrated due to the removal of soluble components. WHECM compared to HECM showed higher protein digestibility when fed to rainbow trout. Subsequent mono- and coculture fermentation of HECM and WHECM under submerged process resulted in higher protein and amino acid content and lower ANFs levels compared to uninoculated controls. The results of cellulase, endoglucanase and β-glucosidase activity indicated the crucial role of used substrates, fungi, fermentation modes (solid state/submerged stated) and inoculation methods (mono-/co-culture) on enzyme activities.

The Impact Of Facebook Affordances On Doomscrolling Behaviors During The Relational Dissolution Process, Emma Williams

Electronic Theses and Dissertations

The affordances provided by social networking sites (SNSs) impact how different social media platforms are used. Facebook has unique affordances such as ease of use, community, information seeking, escapism, and common interests that impact Facebook use. Interpersonal electronic surveillance, categorized as doomscrolling for this study, is a behavior of continuous scrolling and consumption of negative content. Facebook affordances, paired with digital artifacts from terminated relationships, create an environment for doomscrolling (IES) behavior. Building off of the “grave-dressing” and “resurrection” stages of relational dissolution, I examined the relationships of these Facebook affordances with doomscrolling (IES) behaviors through an online survey (N …

Unearthing The Old South/West: Histories Of Racial Capitalism In Modernist Border Narratives, Bailey Moorhead

Electronic Theses and Dissertations

“Unearthing the Old South/West” examines four works of modernist historical fiction which accentuate competing regimes of racial capitalism through South/Western border settings. Following the trend in New Southern and Western Studies to break with exceptionalist and essentialist considerations of these regions, my analysis challenges white-centric narratives of the U.S. South and West and questions their popular portrayals as culturally distinct spaces. Viewing the U.S. as a site of ongoing settler colonialism, imperialist conquest, and international trade reliant upon labor exploitation, I develop the idea that South/Western borders form a microcosm for larger structures of systemic oppression throughout the nation by …

Expressions Of Femininity, Black Feminism, And Pan-Africanist Rhetoric In Black Popular Music, Alonya Lei Castillo

Electronic Theses and Dissertations

Black women have long been subjected to misrepresentations and stereotypes which have denied them full access to their own femininity and womanhood. These misrepresentations and stereotypes are pervasive in Euro-American culture and can be clearly observed in film, television, and music. As a result, these women have combatted such narratives as an expression of agency. One of the most notable ways Black women have accomplished these goals is through Rap and R&B, genres that have allowed them to shape and reshape notions of femininity and Black womanhood. The participation of Black women in these musical traditions frequently draw on womanist …

Amphiphilic Janus Polymer Nanoparticles For Pharmaceutical And Biomedical Applications, Mahesh Loku Yaddehige

Electronic Theses and Dissertations

Amphiphilic hybrid polymers have attracted significant interest as biomaterials for both fundamental research and practical clinical applications due to their unique polymer structure and properties relative to the conventional symmetric polymers. Often referred to as “Janus” polymers combine two different polymer segments (hydrophilic and hydrophobic) of varying degrees, sizes, and functionalities to obtain a single amphiphilic or hetero-functional macromolecule with characteristic features. In particular, amphiphilic “Janus” polymers and their self-assemblies have shown apparent success in nanomedicine owing to their ability to provide highly ordered nanoscale multimolecular aggregates, including micelles and vesicles. However, engineering these polymeric materials on a large scale …

Building Cultural Competence In Schools Through Teacher Capacity, Latonya R. Robinson

Electronic Theses and Dissertations

The purpose of this study was to understand the dynamics of how teaching culturally responsive strategies to teachers can help eliminate the opportunity gap between students of color and their White counterparts. The action research method involved first collecting quantitative data through several surveys and then explaining the quantitative results with in- depth qualitative data through interviews and professional learning communities. In the first phase of the study, the culturally responsive and teacher efficacy scale data was collected from the participants within the study and the district at large. While the district survey was not mandated, it was strongly encouraged. …

Metaphors In Language Learning And Teaching: Discovering The Underlying Factors Affecting Demotivation In Anglophone Learners Of Modern Foreign Languages, Holly Sallah

Electronic Theses and Dissertations

In response to increased levels of demotivation in anglophone students of modern foreignlanguages, this thesis attempted to discover potential underlying causes through the use of metaphor elicitation directed at tertiary learners in the United States of America. Students were asked to metaphorize both the language learning process and the role of the language teacher. Afterwards, a qualitative metaphor analysis revealed that participants were overwhelmingly positive in respect to the role of the language teacher, but more mixed in their metaphors regarding the language learning process, with high frequency words such as “work” and “skill”. Contrary to the literature, the role …

Reimagining Mississippi: Black Power And The Student Activist Plight To Dismantle White Supremacy, Jasmine Stansberry

Electronic Theses and Dissertations

Despite the recent scholarship exploring Black student activism at Mississippi colleges and universities during the twentieth century, the formation of a statewide coalition of Black students from historically Black colleges and predominantly white institutions remains unexamined. Historians interested in Mississippi’s Black Student Movement have failed to include a study that explores the Black intercollegiate ad hoc committee that formed after the mass arrests of Black students at Mississippi Valley State College and the University of Mississippi in February of 1970. Between 1969 and 1970, law enforcement officials arrested and detained over one thousand Black college students at Mississippi’s infamous Parchman …

Synthetic Studies On Valuable Fluorinated Building Blocks, Maali Alshammari

Electronic Theses and Dissertations

Fluorine chemistry plays a diverse role in the pharmaceutical, agricultural, and material industries. In fact, around 25% of pharmaceuticals and 40% of agrochemicals contain at least one fluorine atom. The incorporation of fluorine into pharmaceuticals or natural products can increase bioavailability by enhancing lipophilicity, metabolic stability, and overall pharmacokinetics properties. Our laboratory has designed a method to generate difluoroenolates from pentafluoro-gem-diols. This reactivity can be used to produce molecules displaying a difluoromethyl group. The reaction occurs through the release of trifluoroacetate. We improved the design and synthesis of fluorinated derivatives of flavones and measured their antioxidants activities. This work expanded …

Auditors Are Known By The Companies That Keep Them: The Effect Of Media Sensationalism And Audit Firm Responses On Auditor Ratification, Latoya Flint

Electronic Theses and Dissertations

This study examines media influence on auditor relationships with client shareholders. Audit firms are concerned about client loss due to reputational damage. Sensationalized media reports of corporate accounting frauds can be misleading in their description of the auditor’s responsibility for fraud detection. Although audit firms do not control media sensationalism, they can respond to it. I conduct an experiment to examine the impact of media sensationalism and audit firm responses on shareholders’ likelihood to support auditor ratification. I predict and find that high media sensationalism leads shareholders to perceive a higher level of audit firm control over adverse fraud outcomes. …