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Novel Microdevices To Analyze Toxic Volatile Organic Compounds., Sujoy Halder May 2023

Novel Microdevices To Analyze Toxic Volatile Organic Compounds., Sujoy Halder

Electronic Theses and Dissertations

There has been a growing interest to measure volatile organic compounds (VOCs) in a range of environmental applications. The presence of toxic VOCs in the air has been associated with serious health problems including asthma, central nervous system dysfunction, cardiovascular disease and cancer, etc. Different analytical instruments such as gas chromatography-mass spectrometry (GC-MS) and sensor systems, such as metal oxide sensors are used to analyze VOCs. However, challenges still exist in the detection of airborne VOCs because of their trace concentration and interference with complex gas mixtures. In this dissertation, two microfabricated devices, a sensor array and a micropreconcentrator were …

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An Investigation Into Structural Plasticity In Peripheral Taste Neurons Associated With Taste Cell Turnover., Zachary Whiddon May 2023

An Investigation Into Structural Plasticity In Peripheral Taste Neurons Associated With Taste Cell Turnover., Zachary Whiddon

Electronic Theses and Dissertations

The continual replacement of taste cells creates interesting questions regarding how the innervating neurons are impacted during this process. Here we ask how innervation within taste buds is affected when taste cell entry is inhibited and reestablished. Inhibition of sonic hedgehog signaling (Shh) is thought to inhibit taste cell turnover. Consistently, fewer new cells were added to individual taste buds after treatment with a Shh-inhibitor compared to vehicle treatment, and taste bud volume decreased after 16 days of treatment. We next examined how taste nerve fiber extension into the gustatory epithelium is affected by preventing taste cell turnover. Ten days …

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A Meta-Analysis Of The Academic Achievement Of Students With Emotional/Behavioral Disorders In Traditional Public Schools In The United States., Dana Page May 2023

A Meta-Analysis Of The Academic Achievement Of Students With Emotional/Behavioral Disorders In Traditional Public Schools In The United States., Dana Page

Electronic Theses and Dissertations

Extensive research has been conducted on students with emotional and behavioral disorders (EBD) and their rates of challenging behavior. Less attention has been given to their academic achievement and outcomes. Recent research examining outcomes for students with EBD has indicated that these students receive lower grades, are less likely to pass classes, and experience higher rates of school dropout than students without disabilities and students with other high incidence disabilities. Given that between 2% and 20% of the school-age population is likely to have EBD (though many may not be identified as such), this is no small problem. Despite the …

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Factors Associated With Skin Cancer Prevention: Primary And Secondary Behaviors., Jeanne Ward May 2023

Factors Associated With Skin Cancer Prevention: Primary And Secondary Behaviors., Jeanne Ward

Electronic Theses and Dissertations

Skin cancer, seemingly more innocuous than other cancers, maintains the highest incidence among cancers in the United States. While it is treatable early, metastasized melanoma or other carcinomas present severe illness with high mortality rates and disproportionate 5-year survival rates among ethnic/racial groups. Fortunately, most skin cancer is highly treatable when found in the early stages. However, this necessitates prevention tactics to avoid the causative agent, ultraviolet radiation, and regular skin screening to catch the disease in earlier stages. Unfortunately, these tactics are not widely conducted by adults, despite substantial skin cancer awareness. Therefore, motivating people to perform these health …

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Identification Of A Role Beyond Iron Acquisition For Yersiniabactin During Yersinia Pestis Infection., Sarah Price May 2023

Identification Of A Role Beyond Iron Acquisition For Yersiniabactin During Yersinia Pestis Infection., Sarah Price

Electronic Theses and Dissertations

Yersinia pestis is a Gram-negative re-emerging bacterial pathogen that is responsible for bubonic, septicemic, and pneumonic plague. Y. pestis and other bacteria require transition metals, such as iron, zinc, and manganese, to maintain intermediary metabolism, transcriptional regulation, and virulence. To inhibit infection, eukaryotic organisms have developed distinct mechanisms, called nutritional immunity, to sequester these important nutrients from invading bacteria. For pathogens to colonize the vertebrate host, they have evolved dedicated acquisition systems for transition metals. During infection, Y. pestis overcomes iron limitation by secreting the siderophore yersiniabactin. Additionally, Y. pestis requires zinc for infection and utilizes high affinity transporters to …

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Guided Data Augmentation For Improved Semi-Supervised Image Classification In Low Data Regime., Fadoua Khmaissia May 2023

Guided Data Augmentation For Improved Semi-Supervised Image Classification In Low Data Regime., Fadoua Khmaissia

Electronic Theses and Dissertations

Deep learning models have achieved state of the art performances, especially for computer vision applications. Much of the recent successes can be attributed to the existence of large, high quality, labeled datasets. However, in many real-world applications, collecting similar datasets is often cumbersome and time consuming. For instance, developing robust automatic target recognition models from infrared images still faces major challenges. This is mainly due to the difficulty of acquiring high resolution inputs, sensitivity to the thermal sensors' calibration, meteorological conditions, targets' scale and viewpoint invariance. Ideally, a good training set should contain enough variations within each class for the …

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Barriers And Facilitators Of Dairy Consumption Among Individuals With Metabolic Syndrome., Kofi Amoh-Mensah May 2023

Barriers And Facilitators Of Dairy Consumption Among Individuals With Metabolic Syndrome., Kofi Amoh-Mensah

Electronic Theses and Dissertations

About 35% of the United States adult population meets the criteria for metabolic syndrome, representing about 85 million individuals. Consuming dairy products protects against the development of the metabolic syndrome and protects against the development of complications associated with it. However, approximately 10% of the U.S. population meets the daily recommendation for dairy products. Information about the use of dairy products among people living with metabolic syndrome is relatively unknown, even though it will benefit them the most. About 49% of respondents met the guidance of three servings per day, and the most common facilitator was access to dairy products.

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Synthesis, Property Tuning And Degradation Studies Of Phosphorene-Based Materials., Usman Onuminya Abu May 2023

Synthesis, Property Tuning And Degradation Studies Of Phosphorene-Based Materials., Usman Onuminya Abu

Electronic Theses and Dissertations

Two-dimensional (2D) layered materials have sparked the interest of researchers because of their interesting properties drawn from quantum confinement effects, elevated density of states (DOS), increased surface area, increased active sites, etc. Phosphorene, an interesting addition to the 2D material family in 2014, has interesting properties such as in-plane anisotropy, elevated carrier mobility and thickness-dependent bandgaps that have made it a material of intense interest. Furthermore, there have been theoretical studies predicting that phosphorene could be made even more versatile by intercalating alkali atoms into its layers. Intercalation has proven to be a veritable tool for synthesis, modification, transformation, and …

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Children's Beliefs About Hierarchical Structures And Relationships., Megan Norris May 2023

Children's Beliefs About Hierarchical Structures And Relationships., Megan Norris

Electronic Theses and Dissertations

Children are surrounded by social structures such as families, schools, and workplaces which are often arranged hierarchically with some people holding more power than others. This dissertation explores how children think about hierarchical relationships and more complex hierarchical structures. In Chapter 2, children were asked to evaluate the traits of people who hold hierarchically dominant and subordinate social roles. With age, 4- to 6-year-olds increasingly inferred that dominant individuals have social power and they deferred to their instructions (Chapter 2, Study 1). Furthermore, 5- and 6-year-olds attributed knowledgeability to individuals with dominant social roles but overall children did not prefer …

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Uncovering Testimonios Of Traditional Healing Practices Among Latinx College Students In El Nuevo Sur., Sarah Nuñez May 2023

Uncovering Testimonios Of Traditional Healing Practices Among Latinx College Students In El Nuevo Sur., Sarah Nuñez

Electronic Theses and Dissertations

Latinx college students in el Nuevo Sur face many barriers to their educational success. Latinx students in el Nuevo Sur live in a part of the country where few opportunities to embrace their cultures are present or centered in educational settings. Reclaiming and remembering their cultures within the higher education setting could act as a catalyst for their success and is the motivation for this dissertation. Through testimonios, photo/image-elicitation, and journal writing with ten participants, I listened to and witnessed the students’ stories. Through unfolding the students’ testimonios, I uncovered and supported students to rediscover healing practices as a tool …

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Structural, Magnetic, Electrical, Pseudocapacitive, And Electrocatalytic Properties Of Bilayered Ruddlesden-Popper Oxides., Chandana Kananke-Gamage May 2023

Structural, Magnetic, Electrical, Pseudocapacitive, And Electrocatalytic Properties Of Bilayered Ruddlesden-Popper Oxides., Chandana Kananke-Gamage

Electronic Theses and Dissertations

Ruddlesden Popper (RP) oxides are perovskite-derived functional materials with the general formula An-1Aʹ2BnO3n+1, where A/Aʹ is often a lanthanide or alkaline earth metal, and B is usually a transition metal. These materials contain perovskite-like connectivity, where BO6 units share apexes to form layers that are stacked above each other. The number of layers in each stack is represented by n in the above formula. The spaces between stacks are often occupied by lanthanide or alkaline-earth metals (Aʹ-site metals), which also reside in intra-stack spaces (A-site) between the octahedra. Oxide materials derived from perovskites have been studied for a wide range …

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Microgenerations: Bridging The Generation Gap In Workplace Values., Melissa Kempf Taylor May 2023

Microgenerations: Bridging The Generation Gap In Workplace Values., Melissa Kempf Taylor

Electronic Theses and Dissertations

Generational differences are a popular topic, and attention to them is heightened each time a new generational cohort comes of age. This trend continues with increasing interest in the Homelander generation that is now entering the workforce. Differences in values are often blamed for tensions in generationally diverse organizations. Past generational research has reported mixed results and acquired many critics. This study aimed to address common challenges with generational research and assist in distinguishing between truly valid and simply popular information. This study’s purpose was to identify differences in values between members of major generational cohorts and individuals in microgenerations …

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Second Nature: Impressions Of Place., Trish Korte May 2023

Second Nature: Impressions Of Place., Trish Korte

Electronic Theses and Dissertations

For my art practice, I grow and forage my art materials for eco printing, a direct contact printing method that reveals leaf shapes and hidden imagery through heat and pressure. I take specific cues from surrounding materials, objects, and environments. Tree systems and compelling textures of fungus are interpreted through ceramic and fiber. With an ongoing collaboration of natural materials and eco printing processes, my art speaks symbolically and metaphorically through imagery and materials. This thesis and accompanying exhibition present an examination of current work in context with an ongoing investigation of natural materials and eco printing.

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Irreversible Electroporation Potentiates Beta Glucan Induced Trained Innate Immunity: A Novel Combination Treatment For Pancreatic Adenocarcinoma., Matthew Woeste May 2023

Irreversible Electroporation Potentiates Beta Glucan Induced Trained Innate Immunity: A Novel Combination Treatment For Pancreatic Adenocarcinoma., Matthew Woeste

Electronic Theses and Dissertations

Pancreatic cancer (PC) is a challenging diagnosis yet to benefit from advances in immune oncologic treatments. Irreversible electroporation, a non-thermal method of tumor ablation, is used in treatment of select patients with locally advanced unresectable PC and has potentiated the effect of certain immunotherapies. Yeast-derived particulate β-glucan induces trained innate immunity and successfully reduces murine PC tumor burden. This study tests the hypothesis that IRE may augment β-glucan-induced trained immunity in the treatment of PC. β-Glucan-trained pancreatic myeloid cells were evaluated ex vivo for trained responses and anti-tumor function after exposure to ablated and un-ablated tumor conditioned media. β-Glucan and …

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Mechanism And Kinetics Of Photocatalytic Partial Oxidation Of Methane On Single Site Mox Reaction Centers., Clint Evrard May 2023

Mechanism And Kinetics Of Photocatalytic Partial Oxidation Of Methane On Single Site Mox Reaction Centers., Clint Evrard

Electronic Theses and Dissertations

Single-site transition-metal doped photocatalysts are a class of materials in which small transition-metal oxide clusters are embedded onto the surface of zeolites, graphene, and bulk semiconductors. Experimental findings demonstrate that VO4, CrO4, NbO4, and WO4 clusters embedded on an MCM- 41 mesoporous amorphous SiO2 are effective photocatalysts for oxidative reactions. The selective direct partial oxidation of methane (POM) to form methanol is essential for efficiently utilizing natural gas. Photocatalytic methane oxidation has advantages over traditional thermal catalysis as it can be deployed at small-scale facilities to reduce methane release into the atmosphere due to flaring potentially. Our work has aimed …

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Postpartum Depression In Jamaica: Exploring The Lived Experiences., Shakeyrah Elmore May 2023

Postpartum Depression In Jamaica: Exploring The Lived Experiences., Shakeyrah Elmore

Electronic Theses and Dissertations

The purpose of this study was to explore the lived experiences of Jamaican women with postpartum depression (PPD). It is estimated globally, postpartum depression impacts 10-20% of women. In Jamaica, rates exceed global averages, with 26-60% of women experiencing PPD. Untreated maternal depression poses a significant physical, social, and economic threat to Jamaican women, children, and society as a whole. This study affirms that maternal mental health and postpartum depression are global public health concerns. There are limited studies that have examined PPD in Jamaican women, especially qualitatively. This research study utilized a qualitative descriptive approach to examine PPD experiences …

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"Our House There Is Ugly But Still We Happy": An Ethnographic Study With Women Navigating Displacement And Resettlement., Bridget Kearney May 2023

"Our House There Is Ugly But Still We Happy": An Ethnographic Study With Women Navigating Displacement And Resettlement., Bridget Kearney

Electronic Theses and Dissertations

In academic and public discourse, narratives surrounding refugee camps and the conditions within them typically depict experiences of sorrow and hardship. And, although the stories of struggle are certainly a part of the refugee experience, they are not the only part. This dissertation is a critical ethnographic study with a participatory research lens that focuses on the life experiences and storytelling practices of women in a resettled Sudanese family. It investigates the action of storytelling within displaced groups, the link between stories and community, and the importance of materiality and relationships in storytelling. This dissertation finds that storytelling can be …

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Impact Of Employee-Supervisor Attachment Styles On The Prevalence And Symptomatic Expression Of Secondary Traumatic Stress In Public Child Welfare Workers., Lisa Purdy May 2023

Impact Of Employee-Supervisor Attachment Styles On The Prevalence And Symptomatic Expression Of Secondary Traumatic Stress In Public Child Welfare Workers., Lisa Purdy

Electronic Theses and Dissertations

Child welfare organizations throughout the nation grapple with turnover rates estimated to be as high as 65% (e.g., CWLA, 2016; Edwards & Wideman, 2018). Turnover contributes negatively to client outcomes, organizational financial shortages, and to perpetuating stressful conditions for the child welfare workforce. One factor found to contribute to turnover within child welfare is that of secondary traumatic stress (STS). Child welfare workers are known to experience higher rates of STS than any other helping professional (Brady, 2017). However, while many risk and protective factors for secondary traumatic stress have been evaluated, there remains a gap in the literature as …

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Spirits In My Studio., Katelyn Gabbard May 2023

Spirits In My Studio., Katelyn Gabbard

Electronic Theses and Dissertations

The exhibition “Spirits in My Studio” unveils the inventories of elements in human relationships and connections through collecting and transforming remnants left behind—admiration of an object combined with a presentation format that creates an immersive three-dimensional field to traverse. An acknowledgment and celebration of entropy, the exchange in human experiences elevates the process to both content and medium. Moreover, it creates active entanglements with genuine physical relationships with the artist, the making, and the audience.

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Chloramine Devulcanization Of Waste Rubber., Patrick Kroeger May 2023

Chloramine Devulcanization Of Waste Rubber., Patrick Kroeger

Electronic Theses and Dissertations

The disposal of waste rubber, particularly tire rubber, continues to pose a challenge in the 21st century. As a result, most end-of-life tires (ELTs) are either dumped in landfills or burned as tire-derived fuel. Chloramine devulcanization may offer a viable solution to this problem. Chloramine devulcanization is a low-temperature, low-pressure, process that selectively breaks sulfur crosslinks while preserving the polymer backbone. Chloramine devulcanization enables the recovery of chloramine recovered carbon black (CrCB) and devulcanized rubber (CdR) as separate products. Initial analysis of CdR revealed that it was formable and malleable, suggesting that crosslinking was absent. Spectroscopy showed that CdR contained …

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Working For Yourself: A Guide For Performers With Learning Difference., Sa'id "Nxttime" Kelly May 2023

Working For Yourself: A Guide For Performers With Learning Difference., Sa'id "Nxttime" Kelly

Electronic Theses and Dissertations

Working For Yourself a Guide For Performers with Learning Differences is a combination of advice and tips that are intended to help performers especially those living with learning differences. The thesis helps performers find ways to work with their true selves on stage as well as in preparation for a role. There is no final result to this process, just multiple ways to be more confident with the choice you’ll make while performing and preparing for a role.

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Modeling, Simulation And Control Of Microrobots For The Microfactory., Zhong Yang May 2023

Modeling, Simulation And Control Of Microrobots For The Microfactory., Zhong Yang

Electronic Theses and Dissertations

Future assembly technologies will involve higher levels of automation in order to satisfy increased microscale or nanoscale precision requirements. Traditionally, assembly using a top-down robotic approach has been well-studied and applied to the microelectronics and MEMS industries, but less so in nanotechnology. With the boom of nanotechnology since the 1990s, newly designed products with new materials, coatings, and nanoparticles are gradually entering everyone’s lives, while the industry has grown into a billion-dollar volume worldwide. Traditionally, nanotechnology products are assembled using bottom-up methods, such as self-assembly, rather than top-down robotic assembly. This is due to considerations of volume handling of large …

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Transmission And The Evolution Of Diseases Caused By Chlamydia Trachomatis, Sars-Cov-2, And Plasmodium Species., Nathan Steffens May 2023

Transmission And The Evolution Of Diseases Caused By Chlamydia Trachomatis, Sars-Cov-2, And Plasmodium Species., Nathan Steffens

Electronic Theses and Dissertations

Principles of natural selection have proven valuable for explaining why pathogens cause the diseases that they do. In theory, the evolved level of host exploitation should reflect how dependent a pathogen is on host health for transmission. This dependency is shaped by transmission mode and transmission opportunity, which should therefore be predictors of disease manifestations. In this dissertation, I apply these principles to investigations of depression in Chlamydia trachomatis and virulence of SARS-COV-2 and Plasmodium species. This dissertation has five chapters. In chapter I, I describe the theoretical foundation of my dissertation research. I also briefly introduce each study system. …

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Social Ecological Resilience, Social Capital, Anomie And The Impact Of Covid-19., Kevin Pacifico Gonzaga May 2023

Social Ecological Resilience, Social Capital, Anomie And The Impact Of Covid-19., Kevin Pacifico Gonzaga

Electronic Theses and Dissertations

From climate change to racial tension and income inequality, many difficulties face the United States and those who live within its borders. The extreme and increasing political polarization in the United States as well as the impact of the COVID-19 pandemic have only made these challenges more difficult to address. In this complex web of adversity, the concept of resilience is important to study. Resilience may be broadly defined as the ability to “bounce back” or return to adaptive functioning after experiencing significant adversity or challenges (Smith et al., 2008). Better understanding how resilience functions and the general state of …

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Predicting The Friction Coefficient Of High-Friction Surface Treatment Application Aggregates Using The Aggregates' Characteristics, Ahmed S. El-Ashwah, Korrenn Broaddus, Magdy Abdelrahman May 2023

Predicting The Friction Coefficient Of High-Friction Surface Treatment Application Aggregates Using The Aggregates' Characteristics, Ahmed S. El-Ashwah, Korrenn Broaddus, Magdy Abdelrahman

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Providing Sufficient Pavement Surface Friction (I.e., Skid Resistance) between Vehicle Tires and Pavement Surface throughout the Pavement Service Life is Considered to Be One of the Main Objectives of Highway Design. Moreover, Vehicle Safety, the Amount of Consumed Fuel, and the Wearing Rate of Vehicle Tires Generally Are Influenced by Pavement Surface Friction. in This Study, a Comprehensive Experimental Testing Program Was Conducted on Different Aggregate Sources, Including Calcined Bauxite and Five Alternative Local Sources, to Assess their Friction Characteristics. the Testing Program Included a British Pendulum Tester (BPT) and a Dynamic Friction Tester (DFT), Which Were Used to Evaluate …

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Kiss To The Fist, Greta Flanagan May 2023

Kiss To The Fist, Greta Flanagan

Gandy Dancer Archives

No abstract provided.

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Laws Of Conversion, Matt Keller May 2023

Laws Of Conversion, Matt Keller

Gandy Dancer Archives

No abstract provided.

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Poisoned Against The Moon, Mollie Mcmullan May 2023

Poisoned Against The Moon, Mollie Mcmullan

Gandy Dancer Archives

No abstract provided.

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S.S. Scarlett, Mollie Mcmullan May 2023

S.S. Scarlett, Mollie Mcmullan

Gandy Dancer Archives

No abstract provided.

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Riverdirge, Frances Sharples May 2023

Riverdirge, Frances Sharples

Gandy Dancer Archives

No abstract provided.

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