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Responses Of Predatory Myxobacteria To Prey Signaling Molecules & Features Of A Pseudomonas Prey Avoiding Predation, Shukria Akbar Jan 2021

Responses Of Predatory Myxobacteria To Prey Signaling Molecules & Features Of A Pseudomonas Prey Avoiding Predation, Shukria Akbar

Electronic Theses and Dissertations

Gram-negative unicellular myxobacteria, along with their multicellular lifestyle andbiologically active specialized metabolites, are known for the predatory interactions with Gram-negative/ Gram-positive bacteria and fungi. Although myxobacterial predation range have been exploited extensively, little is known about the prey associated molecules contributing to myxobacterial predator-prey dynamics. By employing transcriptomics and untargeted metabolomics approaches, we demonstrate two structurally distinct classes of signaling molecules from Gram-negative bacterial prey elicit significant omics responses from myxobacteria, Myxococcus xanthus and Cystobacter ferrugineus. An overlapping and general response to acylhomoserine lactones, whereas a distinctive response to a quinolone signaling molecule is observed from both myxobacteria. Similarly, by …

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Prevalence Of Hearing Loss In College Students In The United States: A Meta-Analysis, Ashley Barton Jan 2021

Prevalence Of Hearing Loss In College Students In The United States: A Meta-Analysis, Ashley Barton

Electronic Theses and Dissertations

Purpose: Hearing loss among college students, specifically noise-induced hearing loss (NIHL), appears to be increasing. This may be particularly challenging for this population as college students are required to listen to lectures in classrooms that may have sub-optimal listening environments. Therefore, the purpose of the current study was (1) to examine the prevalence of hearing loss in college students and (2) to emphasize the importance of detecting hearing loss at 6,000 Hz.Method: A meta-analysis was conducted using the PRISMA model. The literature search yielded 8 studies (1,950 subjects) that tested hearing loss using an audiogram and Distortion Product Otoacoustic Emissions …

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Quantifying Microbial Resistance To Nematode Predation, Tyler Bacon Jan 2021

Quantifying Microbial Resistance To Nematode Predation, Tyler Bacon

Electronic Theses and Dissertations

The selection pressure of predation has encouraged the development of defense traits that can make an individual species more environmentally stable. In addition to biotic pressures, abiotic factors could lead to disruption of predator-prey balance within ecosystems. Consequently, it is significant to better understand how environmental factors can influence predator-prey interactions and how responses may, in turn, affect communities. A current challenge within microbial communities is to understand which intraspecific traits associated with such defense strategies are important for microbial-prey responses to predation, and how the responses vary across environments revealing GxE interactions. In this study, I examined microbial-predator prey …

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Technology, Business, And Music Culture From The T.A.M.I. Show To The Rock Festival (1964-1969), Xavier Michael Frascogna Jan 2021

Technology, Business, And Music Culture From The T.A.M.I. Show To The Rock Festival (1964-1969), Xavier Michael Frascogna

Electronic Theses and Dissertations

The social and cultural impact of the first concert movie - The T.A.M.I. Show - manifested in innovations, disruptions, and transformations, not only in the music and movie industries, but society at large, some of which remain today. By recasting live and lively presentations of race, social class, and gender to a broad, predominately white audience on the most prestigious of entertainment platforms, the big screen of movie theaters around the world, The T.A.M.I. Show created sounds and images that complicated traditional white interpretation of Black music and culture, especially in the midst of the social and racial conflict of …

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Less The Light, Michael Martella Jan 2021

Less The Light, Michael Martella

Electronic Theses and Dissertations

This is a collection of poetry.

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Opening The American University: African American, Latino/A, And Women's Activism In Higher Education And Postwar Politics, 1964-1985, Jillian Elizabeth Mcclure Jan 2021

Opening The American University: African American, Latino/A, And Women's Activism In Higher Education And Postwar Politics, 1964-1985, Jillian Elizabeth Mcclure

Electronic Theses and Dissertations

After the passage of the Civil Rights Act of 1964, student and faculty activists at public, flagship universities used existing civil rights organizations and founded new activist groups to bring attention to barriers that hindered their equal power and participation within higher education. African Americans, Mexican Americans, Puerto Ricans, and women created grassroots campaigns and worked within institutional structures to reform universities between 1964 and 1985. Activists worked separately and across gender, racial, and ethnic lines in attempts to gain authority, power, and self-determination within the university system. Students and faculty asserted that flagship universities needed to serve the needs …

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Responses Of Myxobacteria To Plant-Related Chemosignals Suggests Their Roles In The Rhizobiome, Barbara Iyare Adaikpoh Jan 2021

Responses Of Myxobacteria To Plant-Related Chemosignals Suggests Their Roles In The Rhizobiome, Barbara Iyare Adaikpoh

Electronic Theses and Dissertations

In the rhizosphere, plants curate and maintain distinct rhizobiome, some of which serve as secondary defense mechanisms against pathogenic microorganisms. Additionally, in response to biotic stress, plants generate phytohormones which regulate signaling pathways to activate systemic resistance. These phytohormones contribute to the chemical space within the rhizosphere in addition to other low-molecular-weight metabolites used for cell-to-cell communication within species and across kingdoms. However, little is known about the influences of stress-related phytohormones on beneficial bacteria even though biocontrol strategies abundantly explore plant-beneficial microorganisms to manage pathogens in agricultural systems. Myxobacteria are competent predators of plant pathogens and have demonstrated responses …

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For Country And Company: Consolidating Power Through Development And Company Towns In Saudi Arabia, 1947-1969, Andrew Nicholas Czuzak Jan 2021

For Country And Company: Consolidating Power Through Development And Company Towns In Saudi Arabia, 1947-1969, Andrew Nicholas Czuzak

Electronic Theses and Dissertations

My project demonstrates how the Saudi Arabian government established their control over a dissident Eastern Province. Examining a mixture of ARAMCO, American, and Saudi sources, my thesis aims to expand the historiography of urban history, Saudi Arabia, and company towns in the twentieth century. Through the lens of company towns, urban development, and military modernization, I show how Saudi Arabia was effectively able to disrupt local power structures and replace them with their own. Urban development provides an effective tool through which I assess larger trends in theSaudi-ARAMCO relationship, the ruler-subject relationship, and sedentarization policy during the 1940s through the …

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Measuring The Value Of Internal Corporate Events From Attendees’ Perspective: Multidimensional Scale Development, Inna Soifer Jan 2021

Measuring The Value Of Internal Corporate Events From Attendees’ Perspective: Multidimensional Scale Development, Inna Soifer

Electronic Theses and Dissertations

Purpose – Business events is a trillion-dollar sector of the meetings and events industry that supports millions of jobs. Despite the social and economic impact of the meetings, expositions, events, and conventions, only a few studies have examined perceived value in the business events context. This study addresses this research gap by developing a multi-item, multidimensional scale assessing attendee perception of corporate event value.Design/methodology/approach – This study utilized a mixed-method approach and followed widely accepted psychometric scale development procedures. The scale was developed using a multistep process: item generation, expert review, development sample 1 of 506 respondents via Qualtrics Online …

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A Latent Class Analysis Predictive Modeling Approach To Profile Division I Collegiate Athletes For Nutrition And Relative Energy Deficiency In Sport (Red-S) Concern, Morgan Delventhal Jan 2021

A Latent Class Analysis Predictive Modeling Approach To Profile Division I Collegiate Athletes For Nutrition And Relative Energy Deficiency In Sport (Red-S) Concern, Morgan Delventhal

Electronic Theses and Dissertations

Screening collegiate athletes for nutrition-related concerns and low energy syndromes such as Relative Energy Deficiency in Sport (RED-S) provides insight for nutrition care and can lead to necessary referrals in the sports medicine team. Screening may be a part of an athletic department’s protocol, but there is a lack of consensus on a validated tool for this population. The goal of this cross-sectional research was to use a Latent Class Analysis (LCA) predictive modeling approach to determine classes of collegiate athletes who present with nutrition and RED-S concern. LCA is a person-centered approach, intending to uncover subgroups of a population …

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Relational, Linda Flynn Jan 2021

Relational, Linda Flynn

Electronic Theses and Dissertations

A collection of poetry.

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Systematic Computational Investigation Of Thermal Barrier Coatings For Cellulose Substrates, Mohammad Mansouriantabaei Jan 2021

Systematic Computational Investigation Of Thermal Barrier Coatings For Cellulose Substrates, Mohammad Mansouriantabaei

Electronic Theses and Dissertations

A statistical central composite design (CCD) was employed to investigate the effects of cellulose nanocrystal (CNC) and cellulose nanofiber (CNF) volume fractions, as well as relative free volume fraction, on the thermal barrier properties of a pigment-based coating for cellulosic substrates composed of calcium carbonate (CaCO3) and a copolymer binder, poly(styrene-co-methacrylic acid). Average room-temperature thermal conductivity (based on three replicates) was selected as a response and calculated for the different coating formulations using reverse non-equilibrium molecular dynamics (RNEMD) simulation with the Müller-Plathe algorithm. A reduced quadratic response surface model was fitted to the response data and analysis of variance (ANOVA) …

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A Case Study Correlating Cardiometabolic Markers And T Helper Inflammatory Pathways In Covid-19 Patients, Mohammad Shaheed Nazrul Jan 2021

A Case Study Correlating Cardiometabolic Markers And T Helper Inflammatory Pathways In Covid-19 Patients, Mohammad Shaheed Nazrul

Electronic Theses and Dissertations

COVID-19 is one of the deadliest pandemics in the history of mankind and the infection and mortality rate to this date has been immense. There is several information and data available to analyze patient data regarding both deceased and non-severe patients. A vast amount of research and study is ongoing to understand the implications and cure for this disease. The main purpose of this paper is to find the correlation between inflammatory pathway markers and cardiometabolic markers of COVID-positive patients and to see which T-helper pathway markers are enriched and which markers have reduced count amongst three categories of patients.

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The Unmet Needs Of Academic Support Services For Students At Holmes Community College On The Goodman Campus, Karen Ray Jan 2021

The Unmet Needs Of Academic Support Services For Students At Holmes Community College On The Goodman Campus, Karen Ray

Electronic Theses and Dissertations

This paper presents a three-manuscript dissertation exploring the unmet needs for academic support of TRIO-eligible college students on the Goodman Campus of Holmes Community College (HCC) in Mississippi. The quantitative study uses descriptive and comparative statistic techniques to analyze two data sets, including the academic success of students who are qualified, applied for, and were selected for HCC TRIO SSS in 2017-18 and the success of students who are qualified, applied for, but were not selected for 2017-18 federal program. The aggregate academic successes, as measured by grade-point average (GPA), was the first comparison of the two groups. This study …

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Comparative Study Of Agrogeophysical Methods For Identifying Soil Pipes, Md Abdus Abdus Samad Jan 2021

Comparative Study Of Agrogeophysical Methods For Identifying Soil Pipes, Md Abdus Abdus Samad

Electronic Theses and Dissertations

Soil erosion is considered the greatest challenge for soil management and agri-food production threatening human habitat and livelihood. Although soil erosion due to surficial processes has been well studied, the role of the subsurface process such as internal soil pipes has often been overlooked. Internal soil pipes directly contribute to total soil loss in agricultural fields that severely threaten agricultural sustainability. Locating, measuring, and mapping internal soil pipes and their networks are vital to assess the total soil loss in agricultural fields. Internal soil pipes are not commonly visible at the surface, and their subsurface networks rarely follow the surface …

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Development Of An Ophthalmic Nanoemulsion Containing Δ9-Tetrahydrocannabinol-Valine-Hemisuccinate (Thc-Vhs; Nb1111) For Management Of Glaucoma, Corinne Varner Jan 2021

Development Of An Ophthalmic Nanoemulsion Containing Δ9-Tetrahydrocannabinol-Valine-Hemisuccinate (Thc-Vhs; Nb1111) For Management Of Glaucoma, Corinne Varner

Electronic Theses and Dissertations

The use of Δ9-Tetrahydrocannabinol (THC) and Δ9-Tetrahydrocannabinol-Valine-Hemisuccinate (THC-VHS; NB1111) has recently been investigated in the management of intraocular pressure (IOP) lowering activity. The current studies were undertaken to develop a THC-VHS loaded nanoemulsion (NE; THC-VHS-NE) with and without Carbopol® 940 as mucoadhesive agent (NEC; THC-VHS-NEC) that could increase the drug load and the duration of activity. The physical and chemical stability and sterilization of the lead formulation THC-VHS-NE and THC-VHS-NEC were observed under refrigerated conditions (4°C) for sixty days. Further, the pharmacodynamic (PD) effect of the lead formulations were studied in normotensive Albino New Zealand White (NZW) male rabbits following …

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Formulation Development, Characterization, And Optimization Of Antimalarial And Antibiotic Drugs, Kai-Wei Wu Jan 2021

Formulation Development, Characterization, And Optimization Of Antimalarial And Antibiotic Drugs, Kai-Wei Wu

Electronic Theses and Dissertations

Primaquine (PQ)-loaded solid lipid nanoparticles (SLN), nanostructured lipid carriers (NLC), and nano-emulsion (NE) were developed to investigate the influence of lipid excipients, surfactants, and drug loading on the physicochemical properties of lipid formulations. To investigate the drug release mechanisms from the lipid-based formulations, empirical release kinetic models such as zero-order, Higuchi, Korsmeyer-Peppas, and Hixson-Crowell were used. In an ex vivo hemolysis toxicity study, the efficacy of SLN, NLC, and NE to protect erythrocytes against PQ-induced cell lysis was investigated. The results show that all lipid formulations reduced the erythrocyte hemolysis by approximately 4.5-fold compared to the drug solution, suggesting that …

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Roll Down Like Water: Photography, Social Movements, And Surveillance In Memphis, Tenneessee, Andrea Morales Jan 2021

Roll Down Like Water: Photography, Social Movements, And Surveillance In Memphis, Tenneessee, Andrea Morales

Electronic Theses and Dissertations

“There’s really no such thing as the ‘voiceless,’” Arundhati Roy said during a speech after earning her 2004 Sydney Peace Prize for literature. “There are only the deliberately silenced, or the preferably unheard.” These words help illuminate the tensions between dominant narrative and power, as well as photography’s role arbitrating both. This paper will explore those relationships and their impacts through existing documentary and sociological studies, but more pointedly will use the experience of making a body of work about social movements in Memphis, Tennessee. Over the last seven years, I’ve used critical race theory framework to make photographs rooting …

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Exploring Current Community College Transfer Students’ Perceptions Of The University Of Mississippi Brand And Potential Connections To College Choice, Sarah Sapp Jan 2021

Exploring Current Community College Transfer Students’ Perceptions Of The University Of Mississippi Brand And Potential Connections To College Choice, Sarah Sapp

Electronic Theses and Dissertations

Institutions of higher learning today rely on tuition dollars to function. During a time when the pool of high school graduates is shrinking, colleges and universities must look to alternative target markets to meet enrollment goals, including those transferring from community college. Community college transfers have unique attributes that contribute to their brand perception of colleges and universities and their overall college choice process. This dissertation suggests a need to study the college decision-making process for community college students and their perception of brand identity, specifically at the University of Mississippi. As the Flagship university in Mississippi, UM has a …

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The Aesthetics Of Repair: The Way Of Zen And Appreciation, Tyler Ellis Dobbs Jan 2021

The Aesthetics Of Repair: The Way Of Zen And Appreciation, Tyler Ellis Dobbs

Electronic Theses and Dissertations

The nature objects and how beings interact with them has long been a debate in the philosophic tradition. One aspect of this I have taken a look at is the aesthetic qualities entailed in this with particular attention paid to repair. In particular I explore the blurring of the subject-object distinction and the role of narrative in human engagement. I based my research and arguments primarily from Buddhist and Japanese Zen theories and ideas. Special attention was paid to the philosopher Kitaro Nishida and the Kyoto School philosophy tradition and ideas from Mahayana Buddhism.

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Components Of War: How Combat Shapes Political Behavior, Travis W. Endicott Jan 2021

Components Of War: How Combat Shapes Political Behavior, Travis W. Endicott

Electronic Theses and Dissertations

After military service is over, veterans are left to try to acclimate to their new lives. They take the lessons learned through their military career and they apply it to their daily life. One area of veteran life that remains understudied is the way that military service, combat experience specifically, alters political attitudes and behavior. The main focus of this dissertation is to understand the way that military combat alters political attitudes among military veterans. Instead of analyzing military veterans as one homogenous group, I separate veterans by combat experience. Building from the military psychology literature on combat trauma, I …

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Queer Subculture In The Conservative South: A Study Of Drag Performers In Mississippi, Christina Alison Huff Jan 2021

Queer Subculture In The Conservative South: A Study Of Drag Performers In Mississippi, Christina Alison Huff

Electronic Theses and Dissertations

The amount of research on Mississippi LGBTQ communities is scarce. It is well established that ethnographic research on rural Southern queer communities is lacking, and that most LGBTQ research is conducted in metropolitan areas in the northern and western areas of the United States. This study investigates the lives of Mississippi drag performers through films, photographs, and audio documentaries. Specifically, these primary sources demonstrate that many LGBTQ members are thriving in historically conservative rural Southern areas by carving out spaces for their own existence.

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Influence Of Rage Signaling On Cellular Communication In Diabetes-Mediated Vascular Calcification, Amber Michelle Kennon Jan 2021

Influence Of Rage Signaling On Cellular Communication In Diabetes-Mediated Vascular Calcification, Amber Michelle Kennon

Electronic Theses and Dissertations

Chronic hyperglycemia is one of the main characteristics of type 2 diabetes mellitus (T2DM). With the increased prevalence of T2DM, the risk of cardiovascular complications, including heart attack or stroke, is increased. Complications linked to the vasculature are increased vascular calcification (VC) or mineral deposition within the medial layer of conducting arteries. Under calcification conditions, vascular smooth muscle cells (VSMCs) undergo an osteogenic switch to an osteoblast-like cell and begin producing bone proteins. Chronic hyperglycemia can also result in increased extracellular matrix (ECM) synthesis, accumulation, and crosslinking. One of the cell types responsible for increased ECM synthesis are ‘activated’ fibroblasts …

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Describing The Gut Microbiome Of Amblema Plicata, Lauren Lawson Jan 2021

Describing The Gut Microbiome Of Amblema Plicata, Lauren Lawson

Electronic Theses and Dissertations

Freshwater mussels are important for nutrient cycling and ecosystem health, as they filter feed on their surrounding water column. This form of feeding makes these bivalves especially sensitive to conditions in their environment. Gut microbial communities (microbiomes) have been recognized as important to both host organism and ecosystem health; however, how microbiomes are organized and influenced is still unclear. In this study, the gut microbiomes of 58 individuals of the freshwater mussel Amblema plicata were compared across two river basins, five rivers, and nine sites in the southeastern USA. Planctomycetes, Firmicutes, and Cyanobacteria were the most common phyla within all …

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Investigating The Boundary Conditions Of The Fresh Start Effect, Jennifer Locander Jan 2021

Investigating The Boundary Conditions Of The Fresh Start Effect, Jennifer Locander

Electronic Theses and Dissertations

The study of motivation and goal pursuit has long been of interest to various academic disciplines. Recent efforts have considered how time affects motivation and aspirational behavior. The Fresh Start Effect describes the phenomenon whereby people naturally feel more motivated to pursue goals following temporal landmarks (e.g., on Mondays). This dissertation examines a potential boundary condition of the Fresh Start Effect: the person who chooses the goal start date. The findings from six studies reveal that when goal start dates are self-chosen, motivation to pursue goals is influenced by temporal landmarks (i.e., motivation is greater on Monday). When goal start …

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We Make The Path By Walking Together: A Case Study Of How Community Engagement At The University Of Mississippi Impacts Students And Community Partner Organizations, Laura Martin Jan 2021

We Make The Path By Walking Together: A Case Study Of How Community Engagement At The University Of Mississippi Impacts Students And Community Partner Organizations, Laura Martin

Electronic Theses and Dissertations

The community engagement field has grappled with critical questions around its failure to effectuate institutional change that will permit colleges and universities to create a more just society. At the same time, the University of Mississippi has struggled to reconcile its own institutional legacy of forced integration alongside an ambitious public mission in a state recognized for persistent poverty and inequality.

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Essays On Female Labor Supply, Hyerim Park Jan 2021

Essays On Female Labor Supply, Hyerim Park

Electronic Theses and Dissertations

The first chapter examines how women's local labor supply decisions affect the national gender wage gap. The national wage is the sum of weighted local wages, which combines local wages and local employment weights. Here, I emphasize the role of local employment weights, especially for women, which can reflect worker's labor supply decisions across locations. I show that, only for highly-educated women, there is a significant negative relationship between employment-to-population ratio and average log wage across locations. This relationship is stronger for married women with children. Since fewer highly-educated women are working in high-wage cities while more highly-educated women are …

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The Efficacy Of Neurofeedback In The Treatment Of Individuals With Anxiety-Spectrum Disorders: A Meta-Analysis, Gordon Michael Russo Jan 2021

The Efficacy Of Neurofeedback In The Treatment Of Individuals With Anxiety-Spectrum Disorders: A Meta-Analysis, Gordon Michael Russo

Electronic Theses and Dissertations

A number of authors have published articles that assert the efficacy of neurofeedback (NFB) in the treatment of people with anxious symptomatology. Despite this, many insurance companies identify NFB as experimental, which prohibits individuals from utilizing benefits to obtain this therapeutic treatment. In order to examine these discrepancies, the present meta-analyses were conducted and guided by research questions designed to examine the overall effectiveness of NFB, the impact of participant characteristics, and identify the if there is a significant difference in anxiety-spectrum outcomes. Twenty-six trials were divided based on design (14 single group [SG]; 12 between group [BG]) and analyzed …

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Group Sandtray Therapy With Adult Survivors Of Childhood Sexual Assault: A Single-Case Research Design, Jana Elaine Scott Jan 2021

Group Sandtray Therapy With Adult Survivors Of Childhood Sexual Assault: A Single-Case Research Design, Jana Elaine Scott

Electronic Theses and Dissertations

Childhood sexual assault (CSA) is a growing problem in our society. A child who experiences a sexual assault not only deals with the immediate trauma surrounding this event, but also the aftermath of this event as they progress into adulthood. Trauma and sexual trauma is an umbrella term that incorporates all of the various implications of experiencing a negative event. In the instance of trauma, neurobiological implications have been well researched and established. This knowledge highlights the need for counseling techniques to be developed and studied that target those who have experienced CSA. The aim of this single-case research design …

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Enzyme-Initiated Admicellar Polymerization, Elaheh Shakeri Jan 2021

Enzyme-Initiated Admicellar Polymerization, Elaheh Shakeri

Electronic Theses and Dissertations

Admicellar polymerization was developed in the 1980s as an economical method for modifying various surfaces. In admicellar polymerization, a low monomer to initiator (M/I) ratio was traditionally required to overcome this limitation and achieve high polymer conversion when oxygen was present in the headspace and dissolved in the reaction medium. To develop an environmentally friendly, cost-efficient, and feasible deoxygenation and initiation technique, we studied the use of glucose oxidase (GOx) in admicellar polymerization. In this method, GOx acts as the catalyst in the oxidation of ?-D-glucose, while consuming oxygen and generating hydrogen peroxide and D-glucono-?-lactone. There are many advantages of …

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