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Assessing The Live Bait Industry And The Ecological Status Of Invasive Cyprinodontiformes (Sheepshead Minnow: Cyprinodon Variegatus And Gulf Killifish: Fundulus Grandis) In Texas Streams, Erin Shepta

Electronic Theses and Dissertations

The introduction of invasive species is one of the greatest threats to global biodiversity. Once established, invasive species often cause irreversible ecological damage on native communities. Here, I investigated the pathway of introduction and ecological impacts of the sheepshead minnow (C. variegatus) and the gulf killifish (F. grandis). Both species were thought to have been introduced into inland Texas waters via bait-bucket releases and have caused native populations of their inland congeners to decline. While I did not find evidence that either species were being sold in inland shops, bait industry experts did reveal other potentially …

Restoration Through Reassembly: Evaluating The Role Of Native Plants In Combatting Chinese Tallow, Olaniyi Ajala

Electronic Theses and Dissertations

Non-native, invasive species disrupt ecological processes and functions, posing a serious threat to natural ecosystems. By examining the growth metrics of the non-native, invasive tree, Chinese tallow (Triadica sebifera [L.] Roxb.), hereafter tallow, across different flooding and light regimes, I investigated how restructuring native communities with valuable native species will prevent the reestablishment of tallow. I studied the changes in morphological and physiological traits of tallow when growing with water tupelo (Nyssa aquatica L.), sugarberry (Celtis occidentalis L.), and green ash (Fraxinus pennsylvanica Marshall). I found that in the non-flooded and high irradiance treatments, tallow's growth …

Detection And Occurrence Of Nerodia Harteri (Serpentes: Colubridae) In An Upper Portion Of The Brazos River Watershed, Jessica Yates

Electronic Theses and Dissertations

Semiaquatic snakes are disproportionately impacted by habitat alteration adjacent to wetlands because of their reliance on both terrestrial and aquatic habitats. Brazos River Watersnakes, Nerodia harteri, are endemic natricines with one of the most restricted geographic ranges in North America. I quantified detection and site occupancy probabilities of N. harteri and its sympatric congeners (N. erythrogaster and N. rhombifer), as well as microhabitat selection within the Nerodia community. Within occupied transects, search effort was positively correlated with detecting N. harteri, whereas environmental and/or habitat variables were better predictors for detecting the sympatric congeners. Microhabitat selection between …

Detection, Occupancy, Abundance, And Mercury Accumulation Of The Alligator Snapping Turtle (Macrochelys Temminckii) In Texas, David Rosenbaum

Electronic Theses and Dissertations

Land use practices and physical alterations of ecosystems result in habitat loss and fragmentation, while chemical alterations, such as pollutant input, reduce habitat quality and health of exposed organisms. Here, I investigated the effects of watershed- and local-scale environmental variables on the occupancy, abundance, and mercury accumulation of a threatened aquatic species (Macrochelys temminckii, i.e., alligator snapping turtle) within the southwestern periphery of its distribution. Hierarchical modeling suggested the distribution of the species is more affected by watershed-scale land-cover than local habitat, and provided a baseline estimate of average species abundance across its range in eastern Texas. Abundance …

C-H On The Oxo Ferryl Wheel: Comparison Of Pyridine And Imidazole-Substituted Ligands For C-H Activation And Functionalization, Elizabeth Milem

Electronic Theses and Dissertations

The selective and efficient transformation of hydrocarbon feedstocks is of high value for industry and research. While Shilov-type organometallic methods have facilitated this goal, systems designed after nature’s use of cheap and abundant iron-based enzymes are desired for wider-scale applications. This work establishes hydrocarbon oxidation efficiency of synthetic pyridine-based ligands (BPMEN, BPMPN) compared to commercially available TPA with in situ generated catalysts. Literature studies of traditionally synthesized BPMEN systems and initial in situ studies offered evidence for enhanced reactivity (TON) as compared to TPA. Expansion to a propyl backbone to produce BPMPN tested the increased chelate ring size’s impact on …

A Cleave Within The Piney Woods: Nacogdoches, Stephen F. Austin State University And How Racial Integration Divided The Town And Gown, Caitlin Hornback

Electronic Theses and Dissertations

Stephen F. Austin State University was once the pride and joy of the city of Nacogdoches, Texas. When the Texas State Legislature began to look for a location for their new state normal school, the people of the East Texas town fought to have it built there and the Stephen F. Austin Teacher’s College opened its doors in September 1923 to a proud community. Through the trials and tribulations of early twentieth century events, the school managed to stay afloat and grow in numbers. Dr. Ralph W. Steen became the president of the college in 1958 and he oversaw a …

Teaching During Covid-19: The Lived Experiences Of Title I Educators Transitioning From Face-To-Face Instruction To Remote Instruction, Nicole Boykins

Electronic Theses and Dissertations

The purpose of this study was to investigate how school closures resulting from the COVID-19 pandemic impacted school educators who teach in Title I schools serving minority students located in a southern region of the United States. Due to the swift nature of the COVID-19 pandemic and the massive impact on many communities’ health and well-being, government officials moved quickly to close schools. Teachers, much like everyone else, had little voice in the launch of remote learning, expectations of remote teaching, or how to best support students and families during a global pandemic. Educators had to rely on their skills …

An Application Of Differential Mathematical Modeling Techniques To Study The Ongoing Rabies Epizootic In China, Christopher Turner

Electronic Theses and Dissertations

Rabies remains a global public health issue with a wide variety of neurological symptoms such as confusion, slight paralysis, hypersalivation, and hydrophobia. Rabies is usually fatal once symptoms appear. Many species are reservoirs for rabies, such as foxes, racoons, and wild dogs, which in turn can transmit the disease to humans, leading to complex transmission chains. There is a long latent period of rabies, between 1 to 3 months after infection, which further complicates control efforts. Mathematical modeling is a valuable tool in the study of infectious disease outbreaks and there have been many models applied to rabies outbreaks. However, …

Effect Of Mycorrhizae Inoculation On The Growth And Success Of Three Taxodium Distichum Hybrids In Saline - Impacted Coastal Soils, Elif Ilhan

Electronic Theses and Dissertations

In 2008, Galveston Island was severely impacted by Hurricane Ike, resulting in high salt deposition in the soil and groundwater. This caused a loss of many native plant species. A study was initiated to determine effective ways to promote the growth conditions of three bald cypress genotypes (Taxodium distichum var distichum and Taxodium distichum var mexicanum crosses) in salt-affected soils. The treatments applied were mycorrhizae inoculation, fertilizer application, and a combination of mycorrhizae inoculation and fertilizer application. A total of sixty (60) trees planted in plots of three rows and divided into five randomized replication blocks of four treatments …

Di•As•Po•Ra: Displaced, Not Erased., Betty Álvarez

Electronic Theses and Dissertations

This thesis is based on my artistic endeavors and research founded in my culture, family, the history of the United States government’s intervention in El Salvador, and the current political climate Latin Americans face today in the United States. I work within multiple mediums to resurrect pieces of my culture that are being forgotten or left behind due to assimilation. I accomplish this through revisiting and reinterpreting traditions. I aim to bring awareness of the Latin experience in a racially divided United States through artistic expression and my own personal experiences. My works are made to feel whimsical and playful, …

Disorienting Object Oriented Ontology: Queer Landscapes And Ecological Bodies In Richard Siken And Harryette Mullen., Andrew N. Hutto

Electronic Theses and Dissertations

This thesis focuses on a recent development within the study of metaphysics, known as object oriented ontology (OOO), and works out questions of being alongside contemporary poetry. Recognizing the post anthropocentric purchase afforded by OOO’s claim that everything is an object and that these objects are impossible to correlate with, this thesis will look at the use of objects in Richard Siken’s War of the Foxes and Harryette Mullen’s Recyclopedia. Drawing heavily from Sara Ahmed’s queer theory of disoriented objects and Timothy Morton’s ecological insights, this thesis will argue that despite OOO’s advancement, there are critical gaps to fill in …

2d Materials Based Heterostructure For Quantum Tunneling: A Lithography Free Technique., Ali Alzahrani

Electronic Theses and Dissertations

Two-dimensional electron gas (2DEG) systems have played a vital role in the development of superior electronic devices including tunnel junctions consisting of two such 2DEG systems. With the advent of the new 2D electronic material systems, it has opened a new route for 2D–2D tunneling in such extended systems. In this study, we have utilized a plasma enhanced chemical vapor deposition (PECVD) technique to directly deposit graphene (nanowalls) and h-BN on Si/SiO₂ substrates to construct two-dimensional material based, vertically stacked electron tunneling devices free of expensive and cumbersome microfabrication steps. In the first study, we fabricated direct quantum tunneling …

Internalized Racism Mediating The Effects Of Ethnic-Racial Socialization On Self-Esteem And Psychological Distress Among Asians And Asian Americans In The United States., Tianhong "Jojo" Yao

Electronic Theses and Dissertations

Research has indicated ethnic-racial socialization can influence one’s ethnic identity development including ethnic identity and internalized racism. However, there is limited empirical research directly examining the relation among ethnic-racial socialization, internalized racism, and psychological outcomes including self-esteem and psychological distress among Asian populations in the U.S. The current research explored the influences of the three dimensions of ethnic-racial socialization (cultural socialization-pluralism, promotion of mistrust, and preparation for bias) on two outcomes (i.e., self-esteem and psychological distress) through internalized racism as a mediator in a sample of 245 participants identified as Asian and Asian American adults currently residing in the U.S. …

Social-Emotional Learning: A Literature Review, Stella M. Westhoven

Electronic Theses and Dissertations

ABSTRACT

Social-emotional learning targets the development of positive interpersonal relationships, empathy, emotional regulation, healthy identities, personal/collective goal orientation, and responsibility in the decision-making process (CASEL Organization, 2021). Schools, however, have the main objective of ensuring that academic measures are met. Linking social-emotional learning and skills to the school system’s principal goal, academic results, can facilitate the greater implementation of such programs within the school setting. This systematic literature review examined the relationship between social-emotional learning programs in schools and academic outcomes, such as grades, test scores, or grade point averages. Secondly, it explored the relationship between students’ social-emotional skills and …

Home/Sick, Elizabeth P. Fontenot

Electronic Theses and Dissertations

This paper is a supporting document that discusses the conceptual and technical aspects of the artworks in the accompanying exhibition, HOME/SICK. The work in the exhibition consists of selections from different series of work that are inspired by related subject matter. The content driving the work responds to anecdotal experiences of people living in communities near oil refineries and chemical processing plants and how events at these facilities affect their way of life. Many times, these are communities of color which strive to voice concerns and protect homes from harmful toxins. In one series, original and appropriated imagery serves as …

Spatiotemporal Factors Affecting The Occupancy And Phenology Of A Declining Songbird (Bachman's Sparrow - Peucaea Aestivalis) At The Western Extent Of Its Range, Liam G. Wolff

Electronic Theses and Dissertations

The Bachman’s Sparrow (Peucaea aestivalis) is a declining songbird that occurs throughout the southeastern United States. Bachman’s Sparrow is a Species of Greatest Conservation Need in Texas, but information crucial to management efforts, such as factors affecting their detectability and occupancy, is lacking. I investigated the predictors of Bachman’s Sparrow occupancy and phenology in Texas using detections from autonomous recording units coupled with site characteristics and weather data. My results indicate that Bachman’s Sparrow occupancy is associated with increasing herbaceous ground cover and decreasing basal area, distance to the nearest source population, and basal area when canopy height …

A Policy Analysis Of The Endangered Species Act, Kendall Beggs

Electronic Theses and Dissertations

The goal of this thesis was to identify and analyze common characteristics that are shared by recovering species listed in the Endangered Species Act (ESA). NatureServe population data was used to determine which listed species were recovering, and a logistic regression analysis was performed to identify which aspects of the ESA most contribute to recovery. Of the 747 species tested, only 24% had a population that was stable or improving. Time listed and classification group were found to significantly influence recovery, and recovery plan presence and critical habitat designation also increase the odds of recovery. The analysis found no relationship …

Telling Stories: An Analysis Of Speech-Melody Compositions And An Original Speech-Melody Composition For Wind Ensemble, Kevin Cheek

Electronic Theses and Dissertations

This thesis explores the compositional technique of speech melody and provides a brief historical overview of speech in music. This thesis also examines recent works (2005-2014) that have sourced their melodies from the spoken word and in turn creates an original composition for wind ensemble consisting of melodies sourced from recordings of members of United States military forces speaking about their lived experiences. In conjunction with the analytical and compositional aspects of this thesis, I also conducted an interview with Dutch composer Jacob ter Veldhuis (Jacob TV). i

War And Reconstruction From An East Texas Perspective: Nacogdoches County From 1861-1876, William Wade Carter

Electronic Theses and Dissertations

Initially founded in 1826 as a municipality of Mexico and organized as a county in 1837—and sharing its name with the oldest town in Texas—Nacogdoches County flourishes with a rich history and has been a factor in nearly every major event in early Texas history. The Civil War is no exception. Men from the county contributed to the war effort but also felt the war’s sting at home. Citizens did what they could to survive. The county continued under the yoke of Reconstruction after the war before booming again in the 1880s thanks largely to the town the county shares …

Fish Community Assembly At Multiple Spatial Scales In East Texas Streams, Jake R. Swanson

Electronic Theses and Dissertations

Stream communities are structured by environmental processes that vary in strength across different spatiotemporal scales. Therefore, revealing how stream fish communities are influenced by environmental gradients may clarify how communities respond to disturbance associated with anthropogenic change. I investigated the relative role environmental variables play in the processes that structure the taxonomic and functional diversity of stream fish communities, as well as historical trends in occurrence and local habitat associated with a species of greatest conservation need within east Texas. The results of this study indicate that stream sites with more habitat complexity and stability support a more taxonomically and …

Constructing An Interpretive Master Plan For The Confederate Reunion Grounds State Historic Site, Alysha M. Richardson

Electronic Theses and Dissertations

The Confederate Reunion Grounds State Historic Site is owned and operated by the Texas Historical Commission. Interpretation of the site spans the 1864-1940 period and includes stories of groups that once met there for social events, including the United Confederate Veterans. In recent years, the Confederate Reunion Grounds has seen a decline in visitation as well as a reduction in staff. This capstone project focuses on creating an interpretive master plan to accommodate the change. This interpretive master plan aims to address the changes that have occurred over the past seven years and set staff goals and objectives.

Covid-19’S Effects On Mortality Salience, Death Anxiety, And Worldview Defense, Sahvannah K. Shavers

Electronic Theses and Dissertations

Since late-2019, the world has been trying to overcome an invisible killer: COVID-19. With near constant reminders of the virus the knowledge that a tiny viral particle has potential to harm or even kill has become overwhelming for many. Terror Management Theory (TMT) suggests that when individuals are reminded of their own death people take part in culturally appropriate activities and defend their own culture as ways to alleviate this increased death anxiety. The current study aims to identify whether 1) reminders of COVID-19 prime death thoughts, 2) reminders of COVID-19 increase death anxiety, and 3) increased death anxiety from …

Stigma As A Barrier To Military Mental Health Services, Alicea Gray

Electronic Theses and Dissertations

A psychiatric disorder is perhaps an uncomfortable topic that isn’t discussed enough in the military. However, the nature of the profession (i.e., the possibility of combat exposure) increases the risk of mental health disorders in the military. Despite the increasing awareness of the effects of untreated mental health conditions, a treatment gap still exists within the military culture. The present study aims to describe the prevalence of stigma in the military, as well as examine related factors, such as leadership behaviors and the associations between endorsed and anticipated stigma and treatment seeking intentions. Utilizing a questionnaire, this study investigated the …

Christological Implications Of Biblical Women In Late Antique Syriac Christianity, Penelope Biddy

Electronic Theses and Dissertations

Late antique Syriac Christianity has been noted for the prevalence of nuanced, sympathetic, and overall positive depictions of biblical women, especially in comparison to the depictions in non-Syriac sources. These positive depictions, however, are not written by Syriac authors as ends in and of themselves but because biblical women’s stories furnish appropriate vehicles for demonstrating various theological commitments. In this thesis I will argue that biblical women’s stories are especially useful to Late Antique Syriac authors as a means to demonstrate one of their foundational christological commitments: the paradoxical coexistence of revelation and hiddenness within the nature of Christ.

To …

Factors Affecting Quality Of Life And Asthma Control In Older Adults With Asthma., Karen Schuckmann

Electronic Theses and Dissertations

Introduction: Approximately 7.7 percent of adults over the age of 65 have asthma in the United States (U.S), further, the population of older adults in the U.S. will increase to 20% by 2030. Health Related Quality of Life is low for this age group and asthma is often misdiagnosed and undertreated creating a need for research to improve factors that influence Asthma Quality of Life. Aims: This study explored two aims. The first aim evaluates the relationship between medication numeracy and asthma self-management knowledge with asthma self-efficacy. The second aim evaluates medication numeracy, asthma self-management knowledge, asthma self-efficacy, and asthma …

Properties Of 25cr7ni Stainless Steel Fabricated Through Laser-Powder Bed Fusion., Arulselvan Arumugham Akilan

Electronic Theses and Dissertations

Stainless steel is a low carbon high alloyed system with higher concentrations of Cr& Ni, which impart high corrosion resistance to them. Alloys with approximately 25% Cr & 7% Ni in their chemical composition are commercially referred to as ‘Super Duplex Stainless Steel’. They have a unique phase composition of approximately 50% ferrite & 50% austenite, yielding a robust combination of high mechanical strength & corrosion resistance. They find extensive interest & application in the fields which demand a longer service life under intense mechanical / corrosive environment such as offshore oil rigs & pipelines in nuclear power plants. Traditional …

Aggregatibacter Actinomycetemcomitans Exploits And Modulates The Immune Response By Human Neutrophils For Survival In The Anaerobic Environment., Hazel Ozuna

Electronic Theses and Dissertations

Aggregatibacter actinomycetemcomitans (Aa) is a Gram-negative facultative anaerobe and an opportunistic oral pathogen, strongly associated with localized periodontitis and other inflammatory diseases. Periodontitis is a chronic inflammation of the periodontium resulting from the inflammatory response of the host towards the dysbiotic microbial community present at the gingival crevice. The host immune response creates a hostile environment for microorganisms; therefore, it is important for Aa to be able to regulate the necessary genes to survive and thrive in such an environment. Aaexpresses several virulence factors such as a cytolethal distending toxin (Cdt), lipopolysaccharide (LPS) and leukotoxin A (LtxA), …

Examining Adolescent Voices In Urban Montessorianism Within The Third Plane Of Development., Raymond Edward Green

Electronic Theses and Dissertations

Although there is a significant body of research surrounding Montessori education, little research has sought to capture the voices of adolescents, specifically high school students in urban settings (Dr. Montessori’s third plane of development) learning through the Montessori Method. Problem: Legislators, policy writers, district and school-level leaders mandate and implement reforms with minimal to no adolescent input. Further, adolescents are not part of the reform implementation process or identifying desired outcomes of said reform initiatives. Purpose: The purpose of this study was to examine adolescent’s perspective of their urban high school Montessori education, and their role in helping to develop …

Kurt Vonnegut, Modernity, And The Self: A Guide To The Good Life., Josh Simpson

Electronic Theses and Dissertations

What are people for? This is a question Kurt Vonnegut raises in his first novel, 1952’s Player Piano. Over five decades later, when he concludes a career with 2005’s A Man Without a Country, he is still asking, “What is life all about?” (66). These are the central questions for Vonnegut, and his novels, short stories, essays, interviews, correspondence, and commencement addresses offer a singular, life-long attempt at an answer. In this dissertation I offer a reading of Vonnegut not just as a writer concerned with philosophical questions, but rather, on a deeper, more personal level, as a …

Utilizing Shockwave Theory And Deep Learning To Estimate Intersection Traffic Flow And Queue Length Based On Connected Vehicle Data., Abdulmaged Algomaiah

Electronic Theses and Dissertations

The development of Connected Vehicles (CV) facilitates the use of trajectory data to estimate queue length and traffic volume at signalized intersections. The previously proposed models involved additional information that may require conducting different types of data collection. Also, most models need higher market penetration rate or more than a vehicle per cycle to provide adequate estimation. This is mainly because a significant number of the estimation models utilized only queued vehicles. However, the state of motion in non-queued vehicles, particularly slowed-down vehicles, provides much information about the traffic characteristics. There is a lack of exploiting the information from slowed-down …