texas tech online dissertations

Electronic Theses and Dissertations

Permanent URI for this collection https://hdl.handle.net/2346/521

Recent Submissions

• No Thumbnail Available Item La devoradora y becoming Unpregnant: The colonizing rhetoric of dissociation, medicalization, and commercialization of infertility and the acute effect on the Latinx infertile female body ( 2024-05 ) Merlos, Daniela Show more The author's dissertation is a deeply personal and culturally rich exploration of their experience with infertility, specifically focusing on in vitro fertilization (IVF). Presented in Spanglish, the narrative delves into the emotional, physical, and societal dimensions of infertility, challenging norms and advocating for the destigmatization of infertility within Latinx communities. The text reflects on the transformative impact of IVF on the author's body and identity, highlighting the impact that comes with the label of a "Latinx Infertile Female Body" (LIFB) as well as the toll of infertility treatments on the body, navigating faith, and reshaping societal expectations. The term "unpregnancy," a term born out of the author's introspective reflection and struggle to find a place in a dichotomous world, is introduced. Unpregnancy encapsulates the liminal space where a body is neither definitively pregnant nor free from pregnancy's physical and emotional changes. Further, the author calls for recognition beyond reproductive capabilities and challenges societal expectations imposed on LIFBs. In the dissertation, the author directly addresses the stigma, racialization, and gender discrimination faced by LIFBs within the medical system. In conclusion, the dissertation serves as a powerful call to action, urging the destigmatization of infertility, challenging discriminatory practices, and breaking the silence within marginalized communities. It emphasizes the importance of authentic narratives in reshaping societal perceptions and providing agency to those who have been silenced, ultimately contributing to a broader conversation on fertility, identity, and reclaiming one's story. Show more
• No Thumbnail Available Item Inventing the Asynchronous Writing Center: A Discourse Analysis of Asynchronous Feedback in Writing Center Consultations ( 2024-05 ) Camarillo, Eric C. Show more This dissertation explores the gap in research that exists for asynchronous writing center consultations. While face-to-face sessions have a strong foundation of research, asynchronous tutoring has not received similar attention. Using discourse analysis, interviews, and two different sets of coding schemes, this dissertation explores the nature of asynchronous feedback, how tutors choose where to provide feedback, and how asynchronous tutors strategize during asynchronous sessions. Ultimately, the study finds that writing tutors tended to leave surface-level feedback that focused on content and style, most often utilizing questions and explanations to deliver that feedback. Additionally, asynchronous tutors tended to leave feedback based on their training, their sense of what a paper needed, and student requests to focus on specific items. Finally, tutors used a range of strategies to determine how they left feedback including those that helped them manage their workloads and those that helped them build rapport with students. The findings of this study help build up research on asynchronous tutoring and help the field of writing centers better understand how asynchronous sessions are conducted. Show more
• No Thumbnail Available Item Deprived: A Dystopian Sci-fi Novel ( 2024-05 ) Cole, Catherine J. Show more This thesis contains the first ten chapters of the dystopian sci-fi novel, Deprived, plus an introduction to the work. Show more
• No Thumbnail Available Item Understanding Burnout Among Female-Identifying Mental Health Clinicians: Examining Workplace Factors and Gender-Based Discrimination ( 2024-05 ) Narayan, Malvika Show more Burnout among mental health clinicians increases the likelihood of poor client care, engagement in unethical behaviors, and provider psychological distress. Prior to and during the COVID-19 Alpha variant, female-identifying mental health clinicians were more likely to report burnout than their male-identifying counterparts. This cross-sectional study aims to understand the relationship of burnout with workplace factors and experiences of workplace gender-based discrimination among female-identifying mental health clinicians. Participants (n = 172) were recruited from accredited programs and training sites over a 10-day period in June – July 2023. Burnout groups were established using the Copenhagen Burnout Inventory (CBI; Kristensen et al., 2005); relationships with the variables of interest were measured using the Decent Work Scale (DWS; Duffy et al., 2017) and an adapted single-item gender-based discrimination measure (McKinley et al., 2019). There were significant and practical differences in workplace factors (Λ = .762, F(5, 166) = 10.365, p < .001, partial eta-squared = .238) and workplace gender-based discrimination (t(160.014) = -3.247, p < .001, g = -.495) by work-related burnout group. These findings are imperative to informing interventions and strategies targeted at reducing female-identifying clinician burnout in mental healthcare settings, particularly during acute crises. Show more
• No Thumbnail Available Item Understanding New Media’s Relationship with Sexual and Mental Health Among Young Adults ( 2024-05 ) Chakraborty, Jayita Show more This thesis aims to look at multiple research methodologies used in the field of Communication to explore the relationship between new media and health for young adults in the contemporary media landscape. The first paper focuses on how the Netflix series Sex Education is a source of sex-related information for college-going young adults and if the viewership has any effect on sex-positive attitudes. The second paper is a critical autoethnography where I examine the hegemony and neoliberal discourse present in organizational settings, especially during the COVID-19 pandemic and how digital identities looked at information and power and made sense in digital spaces like Zoom and Slack as a “resource” of the organization. Show more
• No Thumbnail Available Item Theoretical Studies of Diffusion and Outgassing of Metallic Bulks, Surfaces, and Nanostructures ( 2024-05 ) Karkash, Ahmed A. A. Show more The study employed first principles calculations and Molecular Dynamics simulations to explore gas adsorption and desorption on FCC metallic structures. Examining various adsorbate species revealed complex interactions, contributing to a comprehensive understanding of gas-surface dynamics. Comprehending the connection between surface adsorbates and secondary electronic emission holds significant importance across various technologies, as the adverse impacts of secondary electrons need to be addressed. The mitigation of such a phenomenon is desirable. Here, I employed molecular dynamics (MD) to investigate the impact of electron irradiation on the Cu (110) surface. The findings illustrated that during irradiation, the C-Cu bonds could undergo dissociation and subsequently reform into C2 pairs and layers resembling graphite, consistent with experimental findings. It was confirmed that the formation of graphitic-like layers on the surface led to the lowest secondary electron emission. First-principles methods and molecular dynamics simulations were employed to study hydrogen outgassing from Cu and Al (110) surfaces. Atomistic approaches highlighted the impact of surface morphology on hydrogen atom mobility and recombination. Orbital hybridization created stable adsorption sites, influencing diffusion paths and surface mobility. Macroscopic models like recombination and diffusion-limited ones, relying solely on hydrogen diffusivity and surface concentrations, couldn’t explain observed outgassing. A systematic three-stage analysis, including bulk transit, surfacing, and recombination/outgassing, revealed the critical role of surface morphology. Excellent agreement with experimental measurements was achieved for properties like diffusion coefficients and activation energies, affirming the validity of atomistic modeling in explaining each outgassing stage. The microscopic insights presented can be generalized to other hydrogen outgassing systems. Show more
• No Thumbnail Available Item Roy Harris’s Fifth Symphony: The Interpretation, Preparation, and Performance of a Rarely Programmed American Masterwork ( 2024-05 ) Cawyer, Bradley E. Show more Viewed purely from musical considerations, Roy Harris’s Fifth Symphony should have attained a place of lasting prominence in the repertoire of American professional orchestras, alongside the most recognized compositions of his contemporaries. Hailed at its premiere as “the first truly indigenous composition of any lasting significance” and “represent[ing] the composer at the turning point of his career,” it had the potential to stand on equal footing alongside his Third Symphony as confirmation of the composer’s stature first demonstrated in that earlier work. Yet this more mature work remains rarely performed in comparison to Harris’s earlier venture into the grandest of symphonic forms. This project provides the foundation for the Fifth Symphony finally assuming its proper place in orchestral repertoire. The drawn-out crystallization of this composition into published form and the disheveled state of its performance materials have contributed to the Fifth Symphony rarely being programed over its 80-year history. Harris delayed its publication for nearly two decades after its premiere, changing it for successive performances to bring the work into a form more satisfying to him. Substantial sections were either cut or completely reworked; some cuts were only temporary. Even though a score was eventually published, the performance materials available for rent today incorporate various older versions of the work in multiple instrument parts. For successful performance, an orchestra library staff would need to make significant corrections, none of which have been catalogued to date. In addition to generating a partial errata list that observes the standards set forth by the Major Orchestra Librarians’ Association, this project discusses interpretive decisions for the conductor based on the author’s recent preparation of the work for performance with a collegiate orchestra. Show more
• No Thumbnail Available Item Reus ex machina: Defense counsel's first appearance arguments as a human intervention to mitigate algorithmic risk scores ( 2024-05 ) Blackburn, J. L. Show more Harris County implemented a pre-trial risk algorithm the same week as counsel at first appearance to address magistrates’ lack of individualized information when setting bail. The use of money bond, especially without individualized information, results in access to financial resources as the driver of pre-adjudicative incarceration, which has been linked to higher rates of guilty pleas and incarcerative sentences. Decision-making algorithms are marketed as providing defendant-based data in a race, gender, and income neutral way; however, the tools repackage incomplete and disparity laden information and create path dependency for defendants unable to question the categorizations. Rothgery v Gillespie County, Texas provides, even mandates, an operationalizable solution with a constitutionally recognized right to counsel at bail. Including defense counsel at a defendant’s first appearance in front of a judge has been repeatedly linked to lower bond amounts, higher rates of pre-adjudicative release, and increased use of no cost bonds. No study has explored how positive defendant outcomes occur. This work investigates how by conducting interviews with lawyers representing clients at their first settings, transcribing arguments presented to judges on felony arrests over a week period, categorizing the arguments, collecting bail amounts suggested by defense, requested by the prosecutor, set by the court, and included on a schedule, and reviewing the county’s training materials. These data help determine what defense argues at the first court setting following arrest and show what, if any, impact the argument has on the position of bail set relative to the prosecutor’s request and the risk assessment’s recommendation manifested as the bail schedule. The investigation found defense counsel: argues factors from United States v. Salerno and Texas’s Code of Criminal Procedure 17.15 while presenting individualized defendant information and reducing opportunities for self-incrimination; mitigates the use of the pretrial risk tool by correcting and contextualizing elements and scores to the point that they create what Barthes refers to as a reconstituted myth for the score; and may offer a counter-anchor to the bail amount recommended by the prosecutor and/or bail schedule. The results of this project identify how defense impacts bail amounts leading the positive results of counsel at first appearance. It offers an actionable strategy to counteract the negative aspects of algorithmic decision-making. For rhetoricians and technical communicators, these results steer us towards using Barthes as an operationalizable strategy instead of his common place as a method of critique. Show more
• No Thumbnail Available Item Visualizing Identity: Defoliant, Heroism, and the Images of Operation Ranch Hand ( 2024-05 ) Stewart, James H. Show more This dissertation explores how visual rhetoric influences both group identity and decision-making within groups. It specifically investigates the visuals utilized during the Vietnam War by the pilots of Operation Ranch Hand, known to themselves and others simply as “Ranch Hands.” The Ranch Hands’ primary mission involved spraying toxic herbicides with the dual objectives of clearing the dense Vietnamese jungle for military access and destroying enemy crops. The study tracks the development and adoption of key visuals employed by the Ranch Hands, illustrating how these visuals not only shaped the group's identity but also left a lasting impact on their actions. I argue two primary points in this dissertation. First, visuals play a dual role in establishing and upholding group identity—both by summoning a specific identity and by making that identity visible. The visuals used by the Ranch Hands were not just passive reflections; instead, they actively crafted and sustained an elite-hero identity intricately linked to defoliant. Second, the identity formed through a group's visuals sets expectations for member behavior. The Ranch Hands' elite hero identity demanded actions in line with that status to maintain the credibility of their identity. For them, this translated into actively seeking risky situations and vehemently defending the safety of defoliant. This defense of defoliant safety persisted decades after the war ended, even in the face of scientific evidence to the contrary. Show more
• No Thumbnail Available Item Faith’s Associations with Multiculturalism and Social Justice within Applied Graduate Programs in the United States ( 2024-05 ) Baldwin, Brelynne J. Show more This study assessed religious belief salience and its impact across multicultural competencies, social justice and faith maturity within a graduate student population. Participants (N = 227) were recruited through training directors of accredited APA, CACREP, and MPCAC programs. The Religious Belief Salience Scale (RBS; Blaine & Crocker, 1995), Multicultural Counseling Knowledge and Awareness Scale (MCKAS; Ponterotto et al., 2002), the Social Justice Scale (SJS; Torres-Harding et al., 2012), and the Horizontal Subscale of the Faith Maturity Scale (FMS; Benson et al., 1993) all reached acceptable alpha and omega levels. Using regression procedures, religiosity was found to be significantly related with MCKAS awareness (p < .001, R2 = .08), SJS attitudes (p < .001, R2 = .06), SJS perceived behavioral control (p = .003, R2 = .04), and SJS intentions (p < .001, R2 = .06). However, the results indicated little practical significance. Religiosity was, also, found to not be significantly related to faith maturity (p = .414), yielding no practical significance. Findings suggest further research is needed to observe the murkiness across religiosity, prosocial behavior, and prejudice. Show more
• No Thumbnail Available Item Three Essays in Natural Resources: Developing Programmable Stochastic Models to Inform Resource-Use ( 2024-05 ) Fuad, Syed Show more This dissertation addresses different dimensions of resource allocation, optimization, and equity in three distinct domains with a thematic focus on efficient and equitable distribution of resources. In the first chapter, we propose using the small-world property strategically to direct funding to specific research collaborations that enhance small-world properties in a bioenergy research network. We collected the universe of published work in black liquor gasification from 1991 to 2007, author information, funding sources, and the number of publications, and were able to attach specific grant awards to specific publications. Using limited dependent variable methods, we estimate the number of publications and the entry or exit of active researchers within the network. We simulate each funding strategy over seven cycles and update the network to create an outcome distribution. Three funding strategies were compared for this experiment. All funding policies provide 22% more funding to the network overall. Direct Optimization funds those author pairs with highest number of expected publications, and on average, increases publications by 92% and researcher recruitment by 28%; the Smart Small World Rule funds author pairs that, once paired, maximize the number of other researchers who have collaborated with either coauthor, and increases publication rates by 114% and researcher recruitment by 31%; the Fair Small World Rule, which funds author pairs that reduce the average number of steps between any two researchers across the entire network, increases publication rates by 111% and researcher recruitment by 37%. Finally, providing no additional funding reduces publications and the number of researchers. Overall, this experiment suggests that research funding that strengthens overall research community connectivity generates the highest levels of research productivity. The second chapter examines the joint variability of cotton yields, cotton fiber prices, as well as daily peak, subpeak and base electricity prices and shows that direct combustion of cotton gin waste (CGW), a technology to process agricultural wastes, can profitably generate electricity at cotton gins despite high volatility in yields, cotton prices, and electricity prices. Using hourly electricity price data from 2010-2021 in West Texas; 15 years of gin trash at a small gin (average 10,700 tons of gin waste); seasonal rainfall; and cotton prices, we generate Bayesian distributions over 10,000 simulated years of CWG and hourly day-ahead electricity prices from December through September. Under assumptions more conservative than current engineering reports, we show expected internal rates of return of 22%-19% for 1 MWe and 2 MWe plants at a small gin; and of 41%-20% for 1 MWe to 6 MWe plants at gins three times larger. This high-resolution modelling detail allows the analyst to present to investors a frontier of stochastic dominant return outcomes for plants of different sizes - at different size gins. In the third and final chapter, we assess the racial component of residential property tax discrimination in Atlanta, Georgia. A combination of sales and assessment data from 2015 and 2016 are obtained from the Fulton County Board of Assessors, while actual tax paid data and square footage, absent in prior studies, is sourced separately from the Tax Commissioner's Office. Demographic data at the census block group level is derived from American Community Survey 5-year averages. Using these updated data and housing characteristics, we compare actual property tax-to-sales price and tax-to-assessment to specific property sales across Atlanta. Like previous studies, we find no bias in tax assessment-to-sales price, yet find a persistent and significant difference in tax charged-to-sales price and tax charged-to-assessment that discriminates against Black households. Empirical results indicate modest differences: If the upper quartile of households, based on the percentage of black residents in a census block group, were subject to the same tax rate as the bottom three-quarters, their average annual payment would decrease by $375.38, equivalent to 1.195% of their median annual income. These results are robust even after sorting households in submarkets that are distinct in their income and demographics; this indicates that while over-assessment has largely been eliminated, the systemic over-taxation remains even within predominantly low income and black neighborhoods. Show more
• No Thumbnail Available Item Gender, Non-Human Agency and New Ruralism in Contemporary Iberian Fiction and Nonfiction ( 2024-05 ) Cosper, Andrew J. Show more Since the economic crisis of 2008, written narrative from the Iberian Peninsula (both fiction and nonfiction) has exhibited a noted turn toward what could be best described as New Ruralism. This dissertation explores representations of rural space in Iberian contemporary fiction and creative nonfiction in order to answer a number of questions: How has the representation of rural space in Spain changed since the nineteenth century? How do the authors and their works rethink the rural sphere in Spain? Why is rethinking rural space important during our current climate crisis? This dissertation analyzes the works of four authors –Irene Solà, Gabi Martínez, Hasier Larretxea, and María Sánchez– who have taken part in this cultural phenomenon. More specifically, these four authors have written on the importance of finding a ‘third way,’ that is, an alternative way to living during the Anthropocene. Their works help to break down multiple dichotomies such as male/female, human/non-human, myth/history, urban/rural and fiction/nonfiction to destabilize a polarizing hegemonic culture which can be described as anthropocentric, androcentric and patriarchal. They portray rural space as a place of resistance to the dominant economic model of infinite growth and progress. The works of these four authors use rural space as a point of departure for transforming current cultural paradigms. In other words, they propose that rural space and rural ways of being can teach us about caring for the earth. At the same time, the four authors emphasize the importance of not falling back into patriarchal systems which, since antiquity, have been prevalent in the Iberian countryside. The conceptual framework of this dissertation draws on the philosophies of Donna Haraway (the Chthulucene), Bruno Latour (the Terrestrial), and Arturo Escobar (the Pluriverse), who have written extensively on finding a ‘terrestrial’ way of being on a damaged planet. Show more
• No Thumbnail Available Item Trinidad Traditional Drumming ( 2024-05 ) Watkins, Joshua M. Show more Starting with the first enslaved African people brought to Trinidad by the French Catholic planters, African creolized drumming has had a strong presence in secular society. This presence persevered through a series of oppressive laws and actions of the ruling elite which threatened to abolish these drumming styles from the Trinidadian culture. This study will examine the use of African creolized traditional/folk drums and the prominent drumming rhythms of Trinidad. The study of Trinidad traditional drumming has not been documented in the current dialogue of Trinidad percussion. Often this area of interest receives only a brief mention lacking significant detail and is overshadowed by more prominent areas of study including steelpan and Calypso music. The purpose of this study is to understand origins and provide a beginning exploration of Trinidad traditional drumming. Focusing on the culture and history of traditional/folk drums (i.e., cutter, fuller/foulé, and bass drums) in Trinidad will provide a contextual baseline for this study. An introduction of traditional/folk drumming instrumentation and derivation of these instruments leads into an analysis of Trinidad traditional/folk drumming styles including Belé, Piqué, Kalinda, Bongo, Coromantee, Temné, Manding, Congo, and Ebo. Analysis of these predominant styles aims to compile the historic use of these rhythms in Trinidad traditional/folk music. Show more
• No Thumbnail Available Item Ours ( 2024-05 ) Kirschenbaum, Max A. Show more Ours is a satirical novel about a word that has no clear-cut definition: friendship. My project does not aim to provide that long-sought definition but rather to explore the questions that stem from this failure of language. What do people who call themselves friends actually do together? What do people who call themselves friends give to and receive from one another? Is it necessary for one to “like” their friends? Can two people remain “friends” if they fall in love? Can two people remain “friends” when only one friend falls in love with the other? And most of all, why do some unhealthy friendships last for years or even lifetimes while others fall apart at the slightest provocation? To explore these questions, my novel tests the bonds of what we often call friendship by pushing a group of post-college, pre-marriage adults through various comically contemporary challenges. It investigates the ways in which work, class, religion, sexuality, race, family, and ambition impact the relationship between those who believe themselves to be friends in specifically the twenty-first century. Show more
• No Thumbnail Available Item Genetic Deletion of the Heat Shock Protein DNAJB3 Exacerbates Diet-Induced Obesity and Associated-Metabolic Dysfunctions ( 2024-05 ) Nejat, Shadi Show more The escalating prevalence of obesity and its associated metabolic disorders, including Type 2 Diabetes (T2D), poses a significant global health challenge with profound economic implications. These metabolic diseases have both genetic, environmental and gene x environment etiologies. This dissertation investigates the role of a specific gene product, the DNAJB3, a member of the heat shock protein family, in modulating dietary obesity-related outcomes. Additionally, it aims to elucidate the complex interplay between genotype, diet, and sex effects on metabolic parameters. Individuals with obesity and T2D were found to express reduced DNAJB3 expression levels, which was partly restored by physical activity. Accordingly, we hypothesized, the lack of DNAJB3 will lead to increased body weight, fat mass, aggravated glucose intolerance and heightened inflammation in diet-induced obese mice. To test this hypothesis, we used a comprehensive methodology, including the generation of DNAJB3 knockout (KO) mice (KO 30, 44 and 47) via CRISPR-Cas9 technology and metabolic phenotyping. In our initial animal study, we observed that compared with Wild type (WT) mice, male and female KO 47 mice demonstrated higher body weight and fat mass. Additionally, KO 47 mice exhibited a diminished rate of glucose clearance in the Glucose Tolerance Test (GTT), consistent with decreased mRNA expression of the glucose transporter 4 (Glut4) gene in white adipose tissue (WAT), but not in the muscle. Both male and female KO 47 mice exhibited elevated mRNA levels of the pro-inflammatory marker tumor necrosis factor  (Tnf ) in WAT only. Furthermore, increased mRNA levels of the monocyte chemoattractant protein 1(Mcp1) and the ER stress marker immunoglobulin binding protein/glucose regulated protein (Bip/Grp78) were observed solely in male KO 47 mice, with no such changes observed in females. However, above alterations were not observed in the other KO lines. The above study reveals critical involvement of DNAJB3 in metabolic dysfunctions associated with obesity. Specifically, DNAJB3 deficiency (KO 47) exacerbated adverse metabolic outcomes, including glucose intolerance and fat mass, particularly under Texas Tech University, Shadi Nejat, May 2024 X obesogenic conditions. Notably, these effects were more pronounced in female mice, highlighting the influence of sex on metabolic regulation. Since the KO 47 line had the largest DNA deletion generated by CRISPER-Cas9, which also resulted in the elimination of the start codon, we designed the next experiments using KO 47 to compare responses to low fat vs. high fat diets and sex differences. Moreover, we used KO 47 as its phenotype was also consistent with previous observations reported in the human studies. We demonstrated that, KO mice females exhibited elevated body weight and fat mass compared to their WT littermates under the same dietary conditions Moreover, in both males and females, HF-fed KO mice demonstrated slower rates of glucose clearance, as by GTT, compared to the other groups. Interestingly, these findings were more significant across the board in the female HF-KO group, compared to the other groups. Leptin levels in serum were significantly higher in female HF KO groups compared to LF groups and HF WT group (P<0.0001). In males the HF KO had a significantly higher leptin level compared to HF WT (P=0.0036), LF KO (P=0.0002) and LF WT (P<0.0001). Additionally, in females, the mRNA expression level of Glut 4was significantly lower in WT fed LF diet compared to KO fed the same diet (P<0.0001), and significantly lower in the HF fed groups compared to LF KO (KO: P=0.0009) (WT:P=0.0065). Our findings not only underscore the translational relevance of DNAJB3 in metabolic health but also offer potential therapeutic targets for obesity-related disorders. By unraveling the intricate molecular mechanisms underlying DNAJB3-mediated metabolic regulation, we identify pathways such as glucose homeostasis, insulin signaling, and lipid metabolism as potential targets for therapeutic interventions beyond gene therapy using DNAJB3. To further investigate whether the metabolic phenotype observed in female KO 47 were due to direct effects of the DNAJB3 deficiency on adipose tissue, we isolated stroma vascular cells from WAT and cultured them. Undifferentiated preadipocytes and differentiated adipocytes from these stroma vascular cells of WT and KO mice were then treated with lipopolysaccharide (LPS) to induce inflammation then interleukin 6 (IL 6) secretion from adipocytes was measured in culture media. However, no differences were detected between WT and KO mice in their response to LPS. Texas Tech University, Shadi Nejat, May 2024 XI Overall, our findings hold profound implications for translational research and future investigations aimed at developing personalized therapeutic approaches for obesity and related metabolic disorders. In addition to exploring gene therapy, it is imperative and practical to prioritize the identification of dietary or pharmacological interventions capable of upregulating DNAJB3 expression for therapeutic purposes. By advancing our understanding of DNAJB3's role in metabolic regulation, we pave the way for the development of innovative therapeutic strategies to alleviate the global burden of obesity and improve metabolic health. Collaboration between researchers, clinicians, and pharmaceutical industries is essential to translate these findings into effective clinical interventions and address the pressing public health challenge posed by obesity. Despite the significant insights gained, limitations, including the absence of mechanistic data on differential responses of WT and KO to insulin in stromal vascular cells are lacking and may provide insights into the underlying mechanisms by which DNAJB3 affects glucose homeostasis. Future studies should address these limitations and delve deeper into the nuanced mechanisms underlying complex DNAJB3 metabolic actions, including sex-specific regulations. Show more
• No Thumbnail Available Item The Effect on Audit Fees of Dismissing Auditors as Tax-Service Providers ( 2024-05 ) Salib, Sarra Show more This study examines whether increases in audit fees are larger for companies that dismissed (or substantially reduced reliance on) their auditors as their tax-service providers relative to firms that continued to purchase these non-audit services from their auditors. Using a changes analysis regression approach, I find that companies that dismissed or significantly reduced their reliance on their auditors pay 3.5 percent higher audit fees relative to companies that do not dismiss their auditors, consistent with my a priori prediction. I also find that companies that never use their auditors as their tax-service providers are associated with higher levels of audit fees, while companies that appoint or always use their auditors as their tax-service providers are associated with lower levels of audit fees. My results are robust to propensity score matching and Heckman two-stage model econometric approaches. In cross-sectional tests, I find that companies that cut their tax fees the most and companies that have tax-to-audit fee ratios greater than the industry-year median are both positively and significantly associated with higher audit fees, consistent with economic bonding. Collectively, my results demonstrate that dismissing (or substantially reducing reliance on) auditors as tax-service providers can significantly impact companies’ audit fees. Show more
• No Thumbnail Available Item Hydration-Induced Plasma Surface Modification of Aluminum Nanoparticles for Power Generation in Oxygen Deficient Environments ( 2024-05 ) Micus, Joseph L. Show more An approach to increase the energy release rate from aluminum (Al) combustion is to modify the alumina (Al2O3) passivation shell surrounding the Al fuel core. One approach uses atmospheric plasma treatment to physically reduce the Al2O3 shell thickness while simultaneously exposing the defected surface to water vapor to promote surface hydration. Combining water-vapor with an atmospheric helium dielectric barrier discharge (DBD) plasma yields a thinner Al2O3 shell with double the surface hydration compared to as-received aluminum nanoparticles (nAl). Non-equilibrium combustion studies on plasma-treated nAl particles demonstrate increased energy release rates owing to the thinned shell and reduced diffusion barrier. Adding hydration further provides more oxidizer species in molecular scale proximity to the core such that the thinned and hydrated shell increased the initial pressurization rate by 50% compared to as-received nAl. The results introduce a method to modify the native oxide surface and a strategy to control energy release rates from metal particle combustion. Show more
• No Thumbnail Available Item A Second Generation Test Apparatus for the Observation and Study of Vacuum Surface Flashover ( 2024-05 ) Brooks, William Show more An experimental apparatus for the study of anode-initiated vacuum surface flashover was designed, constructed, and commissioned. A variety of diagnostics were employed to measure circuit parameters of the flashover events in accompaniment with time-integrated imaging of the flashover event. Experimental measurements of positive-45 degree wedge-like samples of crosslinked polystyrene were found to withstand 350 kV flashover impulses at a vertical gap distance of 6mm corresponding to an average field of 580 kV cm−1. Voltage rise-rates were varied over the investigated range of 5 kV ns−1 to 35 kV ns−1. A bilinear fit was used to describe a relationship between peak voltage and rise rate. A local minimum of 7.3 kV ns−1 was identified for the samples tested. Show more
• No Thumbnail Available Item Improving the seismic performance of a cold-formed and hot-rolled steel wall system equipped with a novel curved steel-composite dampers ( 2024-05 ) Ghabussi, Aria Show more The enhancement of seismic performance in mid-rise structures often involves the utilization of hybrid structural systems. Among these, the combination of cold-formed steel (CFS) and hot-rolled steel (HRS) wall systems has been proposed to achieve the desired seismic performance level by effectively controlling lateral forces. This study focuses on the numerical analysis of a novel bracing system equipped with curved steel-composite dampers within a hybrid wall panel (HWP). The objective is to improve energy dissipation, stiffness, and frame strength during displacement control cyclic loading protocol. The investigation evaluated seismic performance of an HWP equipped with the novel curved steel dampers oriented at six different angles (30°, 45°, 55°, 60°, 65°, and 75°), with two different thicknesses (10mm and 13mm) and three different depths (30mm, 40mm, and 50mm). The aim is to determine the most efficient damper geometry to enhance the seismic performance of the HWP frame. The results show that the energy dissipation, frame strength, and elastic stiffness are improved significantly when using (a) a 75° damper with 10 mm thickness and 40 mm depth or (b) a 55° damper with 13 mm thickness and 40 mm depth at the top of the hot-rolled section. In the second phase of the study, a novel chevron bracing system equipped with proposed curved steel dampers is designed and introduced to improve the seismic performance of the HWP frame by increasing the energy dissipation and frame strength of HWP as well as improving the buckling areas in hot-rolled section compared with using the proposed curved steel dampers solely on the hot-rolled section of the HWP during the cyclic loading protocol. The same damper configuration for angle, thickness, and depth has been used to increase the accuracy of the comparison, as well as the same cyclic loading protocol to achieve the most accurate results. The results indicate significant improvements in energy dissipation, frame strength, and buckling areas of the HWP frame when using the novel bracing system equipped with a 75° damper featuring a thickness of 13mm and a depth of 30mm compared with HWP without dampers and HWP equipped with proposed curved steel dampers. In the third phase of the study, a novel approach was introduced by designing curved composite dampers. This involved the use of three different composite patterns by using Aluminum, Gray Cast Iron, and Copper as composite materials combined with steel and three varying core thicknesses for composite combinations. Improved configurations for curved composite dampers were developed for both HWP equipped with the chevron bracing system and curved steel-composite dampers, as well as HWP equipped solely with curved dampers at the top of the hot-rolled section. The results demonstrated that employing curved steel-composite dampers had direct and positive impacts on improving the seismic performance of the HWP for both bracing systems when compared to the same bracing method with curved steel dampers and novel composite combinations were introduced for each bracing system, and curved dampers. Show more
• No Thumbnail Available Item An Investigation of The Skidding, Milling, and Sawing of High Explosives ( 2024-05 ) Watkins, Scott Show more The handling and machining of high explosives subjects the material to frictional heating with the risk of inducing accidental chemical reactions. In this work, experimental testing is employed to assess the risks and heating trends under drop skidding, milling, and sawing conditions. Skidding experiments were performed over an IR transparent surface on a rotating disk in a novel approach to drop testing, allowing for heating at the frictional interface to be visualized by a high-speed IR camera well before ignition temperature. A hydraulic ram was developed to accelerate the sample toward the moving target surface, thus combining drop forces with skidding. The IR images taken through the IR transparent surface identified hot spot generation produced by high melting-point silica grit particles and surface height fluctuations. Milling was performed using an embedded thermocouple within the center of the endmill during corner milling operations. Additional IR videography produced insight into the chip temperatures, and it was noticed that the temperature of the endmill tended to be highest. The thus obtained temperature data was used to develop empirical equations of expected maximum temperatures under differing milling parameters. Sawing was observed using high-speed IR videography, and empirical equations of maximum temperatures observed were developed. Pertinent force magnitudes were recorded for all experiments using appropriately placed strain gauges for skidding and commercially available 6-axis force sensors for milling and sawing operations. Show more
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TTUHSC and TTU Dissertations and Theses

Some TTU and TTUHSC dissertations and theses are available online through a  searchable database . Further assistance from a Reference Librarian may be required for older or print items. 

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• Last Updated: Jun 27, 2024 1:53 PM
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UT Electronic Theses and Dissertations

Permanent URI for this collection https://hdl.handle.net/2152/11

This collection contains University of Texas at Austin electronic theses and dissertations (ETDs). The collection includes ETDs primarily from 2001 to the present. Some pre-2001 theses and dissertations have been digitized and added to this collection, but those are uncommon. The library catalog is the most comprehensive list of UT Austin theses and dissertations.

Since 2010, the Office of Graduate Studies at UT Austin has required all theses and dissertations to be made publicly available in Texas ScholarWorks; however, authors are able to request an embargo of up to seven years. Embargoed ETDs will not show up in this collection. Most of the ETDs in this collection are freely accessible to all users, but some pre-2010 works require a current UT EID at point of use. Please see the FAQs for more information. If you have a question about the availability of a specific ETD, please contact [email protected].

Some items in this collection may contain offensive images or text. The University of Texas Libraries is committed to maintaining an accurate and authentic scholarly and historic record. An authentic record is essential for understanding our past and informing the present. In order to preserve the authenticity of the historical record we will not honor requests to redact content, correct errors, or otherwise remove content, except in cases where there are legal concerns (e.g. potential copyright infringement, inclusion of HIPAA/FERPA protected information or Social Security Numbers) or evidence of a clear and imminent threat to personal safety or well-being.

This policy is in keeping with the  American Library Association code of ethics  to resist efforts to censor library resources, and the  Society of American Archivists code of ethics  that states "archivists may not willfully alter, manipulate, or destroy data or records to conceal facts or distort evidence."

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Open Access Theses and Dissertations

Thursday, April 18, 8:20am (EDT): Searching is temporarily offline. We apologize for the inconvenience and are working to bring searching back up as quickly as possible.

Advanced research and scholarship. Theses and dissertations, free to find, free to use.

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Browse by author name (“Author name starts with…”).

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October 3, 2022. OATD is dealing with a number of misbehaved crawlers and robots, and is currently taking some steps to minimize their impact on the system. This may require you to click through some security screen. Our apologies for any inconvenience.

Recent Additions

See all of this week’s new additions.

About OATD.org

OATD.org aims to be the best possible resource for finding open access graduate theses and dissertations published around the world. Metadata (information about the theses) comes from over 1100 colleges, universities, and research institutions . OATD currently indexes 7,213,579 theses and dissertations.

About OATD (our FAQ) .

Visual OATD.org

We’re happy to present several data visualizations to give an overall sense of the OATD.org collection by county of publication, language, and field of study.

You may also want to consult these sites to search for other theses:

• Google Scholar
• NDLTD , the Networked Digital Library of Theses and Dissertations. NDLTD provides information and a search engine for electronic theses and dissertations (ETDs), whether they are open access or not.
• Proquest Theses and Dissertations (PQDT), a database of dissertations and theses, whether they were published electronically or in print, and mostly available for purchase. Access to PQDT may be limited; consult your local library for access information.

• University of Texas Libraries
• UT Libraries

Find Dissertations, Theses, and Reports

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Dissertations, Theses, and Reports From UT Austin

The UT Libraries collects dissertations, theses, and master's reports written by UT Austin students. Please note that it can take up to a year after the graduation date for copies to be received.

Dissertations from 2001-present and theses from 2010-present are available electronically. Print copies are available of older items. 

The most comprehensive list of UT Austin dissertations, theses, and reports is available in the library catalog . In the  Advanced Search  option, you can limit the resource type of results to dissertations. You may have to scroll down in the drop down menu to see all options. 

For items from 2008-present, you can also search within the Texas ScholarWorks digital repository.

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• Last Updated: Jul 30, 2024 12:42 PM
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Electronic Theses and Dissertations

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Dissertations & theses, proquest: the world leader in dissertation access and dissemination.

Over the last 80 years, ProQuest has built the world’s most comprehensive and renowned dissertations program. ProQuest Dissertations & Theses Global (PQDT Global), continues to grow its repository of 5 million graduate works each year, thanks to the continued contribution from the world’s universities, creating an ever-growing resource of emerging research to fuel innovation and new insights.

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Texas Tech Now

Texas tech university joins u.s. doe’s $44 million carbon storage project.

August 14, 2024

This partnership will help leverage decades of experience to establish an equitable and environmentally responsible technical assistance program.

The U.S. Department of Energy’s (DOE’s) Office of Fossil Energy and Carbon Management (FECM) has selected Texas Tech University as one of nine university and industry-led projects to split $44.5 million in federal funding to advance commercial-scale carbon capture, transport and storage across the U.S. 

With an award just over $6.2 million, Texas Tech intends to implement and accelerate the equitable and environmentally responsible deployment of storage-based carbon management projects in the Permian Basin. The team will provide technical and engagement support for stakeholders to develop a framework for the establishment of a carbon management hub, which will utilize carbon capture storage (CCS) and result in net-zero emissions.  

“It’s a feeling of accomplishment that six years ago, we started looking into nontraditional oil and gas research topics – CCS being one of them – and pushed to develop a team and technology level where we were ready to take on this type of research,” said Marshall Watson , department chair of the Bob L. Herd Department of Petroleum Engineering . “What is even more exciting is this award aligns with our mission to serve the industry and people of West Texas.”

Texas Tech has partnered with five universities, two national laboratories, one geological survey, one private company, and a variety of regional stakeholders and local communities. These stakeholders have extensive technical, managerial, regulatory and business expertise specific to carbon transport and storage in the Permian Basin.

Watson is the primary investigator (PI) of this project along with his co-PIs, Qingwang (Kevin) Yuan , an assistant professor of petroleum engineering, and Hossein Emadibaladehi , an associate professor of petroleum engineering. They also have teamed with William Keffer, a professor of energy law at Texas Tech School of Law , and Nikki Kantelis , an associate professor of energy commerce and business economics at the Jerry S. Rawls College of Business . 

“They will be completing the legal and regulatory work alongside us,” Watson explained. “We are excited for this multidisciplinary collaboration.”

CCS is already an integral part of the Department of Petroleum Engineering, which has filed two related patents in addition to this award. The department also has added a CCS certificate program that became available to students graduating in May 2024 and expanded into other energy areas such as hydrogen, geothermal, emission detection/mitigation and produced water management.

“We, in petroleum engineering, are not against alternative fuels at all,” Watson said. “We’re for producing an abundant amount of energy so we can survive in an environmentally friendly manner.”

DOE’s National Energy Technology Laboratory (NETL), under the purview of FECM, will manage the Texas Tech project along with the others selected. A full list of the nine teams and a detailed list of their contributions can be found here .

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Alumna inspires next generation of scientists, engineers and mathematicians, graduating apparel designer says education doesn’t end here, texas tech officials cut ribbon on newest academic facility.

• High School
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Texas Tech football adds non-conference opponents in 2026, 2029

The Texas Tech football program has filled a hole on its 2026 non-conference schedule with a game against Sam Houston State.

Tech athletics director Kirby Hocutt said he received the finalized contract Friday. The 2026 non-conference schedule now has the Red Raiders opening at home Sept. 5 against Abilene Christian, playing a Sept. 12 road game at Oregon State and hosting Sam Houston State on Sept. 26.

Tech expects to have a conference game on Sept. 19, senior associate athletics director Robert Giovannetti said Monday.

Also on Monday, Tech announced a 2029 home game against Incarnate Word, which will be a Sept. 1 season opener.

Tech and Colorado State mutually agreed earlier this year to cancel a two-game series in 2025 and 2026 without penalty, initiated by Hocutt's desire to ensure the Red Raiders seven home games a year. In February, Tech reached an agreement with Kent State to play at Jones AT&T Stadium in 2025.

Because of the shorter-than-usual advance notice in scheduling the games, Tech will pay game guarantees of $1.5 million to Kent State and $1 million to Sam Houston State. Of the two dozen other non-conference games Tech has scheduled over the next decade, only one game guarantee is for more than $575,000.

"You're seeing escalation in the market," Hocutt said, "and then also there's limited teams looking for (2026) games at this point, so the small time frame obviously escalates the market."

Related: Texas Tech football: What's behind Kirby Hocutt plan for 7 home games a year?

More: Texas Tech football hopes to unlock pass rush with more stunts up front

TEXAS TECH FOOTBALL FUTURE SCHEDULES

Note: Home games in ALL CAPS. Dollar amounts in parentheses are game guarantees that home-team athletics department contractually agrees to pay visiting-team athletics department.

Aug. 31, ABILENE CHRISTIAN ($375,000)

Sept. 7, at Washington State ($500,000)

Sept. 14, NORTH TEXAS ($300,000)

Aug. 30, ARKANSAS-PINE BLUFF ($575,000)

Sept. 6, KENT STATE ($1,500,000)

Sept. 13, OREGON STATE ($300,000)

Sept. 5, ABILENE CHRISTIAN ($375,000) 

Sept. 12, at Oregon State ($300,000)

Sept. 26, SAM HOUSTON STATE ($1,000,000)

Sept. 4, ARKANSAS-PINE BLUFF ($550,000)

Sept. 11, at North Texas ($300,000)

Sept. 18, NORTH CAROLINA STATE ($300,000)

Sept. 2, MISSOURI STATE ($525,000)

Sept. 9, at Mississippi State ($250,000)

Sept. 16, WYOMING ($300,000)

Sept. 1, INCARNATE WORD

Sept. 8, MISSISSIPPI STATE ($250,000)

Sept. 15, at Fresno State (no game guarantee)

Sept. 7, FRESNO STATE ($750,000)

Sept. 14, ARKANSAS ($300,000) 

Sept. 13, at Arkansas ($300,000) 

Sept. 4, WASHINGTON STATE ($500,000)

Sept. 11, FRESNO STATE (no game guarantee)

Sept. 18, at Texas-El Paso ($300,000)

Sept. 17, at Oregon ($400,000)

Sept. 9, ARIZONA ($400,000)

Graduate School

• Academic Progress

Thesis Dissertation Completion Requirements

Signature form.

• Masters & Doctoral Students submit a Defense Notification Form. (See notification calendar for submission deadlines.)
• Students must obtain signatures from all committee members on the Oral Defense and Thesis-Dissertation Approval Form.
• Students must obtain signature from all committee member on the Thesis/Dissertation Document Approval form

Thesis Dissertation Processing Fee (paid only once)

• Pay the processing fee through Student Business Services
• Rate: $50.00 Basic Thesis-Dissertation Fee
• NOTE: Thesis-Dissertation Fees do NOT cover any personal or departmental, bound copies

Bound Paper Copies

• The Graduate School and TTU library no longer provide binding through their commercial binding service. Students who need to make bound copies for their committees and/or departments or would like to have bound personal copies, must find a binding service through a third party. The retail version of the commercial binding previously offered by the library is  Thesis-On-Demand

Final Review Draft of Theses/Dissertations and Supporting Documentation

• Format your document following the guidelines specified on Thesis-Dissertation Document Formatting Guidelines
• Submit a committee-approved electronic copy (PDF file) of the final draft of your thesis or dissertation to the ETD website within two weeks after your defense date or no later than the posted deadline
• Revise your draft according to the review comments made by the coordinator or supervisor
• Submit the signed Thesis-Dissertation Approval Form to the thesis coordinator or dissertation supervisor
• MMA/DMA students submit program PDFs on ETD and performance CDs to the Graduate School. More info . . .

Final Copy of the Thesis or Dissertation

• Submit the final, revised copy in PDF format to the ETD website .
• NOTE: DO NOT submit paper copies to the Graduate School or the University Library.

More Information or Questions:

Please contact: Allison Belisle Dissertation Supervisor [email protected] | T 806.834.5163

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New! **Graduate Research Strategies Initiative**

Earn a Certificate of Completion in Research Strategies. Jointly sponsored by Texas Tech University Libraries and the Graduate School, the Graduate Research Strategies Initiative is a series of free workshops that allows graduate students who attend eight of ten workshops to be eligible for the certificate. The ten workshops include: Best Practices in Library Research, How to Do a Literature Review, Publishing Your Research, Poster Presentation Workshop, Managing Your Citations, Identifying Grants for Research and Project Funding, Managing Your Research Data, Predatory Publishing, Altmetrics, and Copyright and Fair Use. You can register for the workshops on the Texas Tech Libraries' website by clicking the Workshops & Events link on the right side of the screen. If you have questions about the certificate, please contact Brian Quinn.

Graduate Research Strategies Initiative Workshop Recordings

• Mediasite Catalog The Graduate Research Stategies Initiative workshop recordings are available for viewing in the TTU Mediasite Catalog. Once in the Catalog, scroll down the column on the left and select the option that says "Library."

Dissertation Calculator

• Dissertation Calculator Beginning your thesis or dissertation and not sure where to start? The Dissertation Calculator is a tool that breaks down the research and writing process into manageable steps. Just plug in an estimated date of completion and it will create a research and writing plan for you.

Use the tabs in the upper left corner of this guide to explore different resources, such as recommended journals and databases, services for graduate students, and other guides to assist you in your studies.

Need more help? Contact me to make an appointment for a research consultation: [email protected]  or call 806-834-2148.

Library Services

• Graduate students may check out books for six months. Graduate students can reserve a study carrel for their research or reserve a study room online on the Library's website.  
• The Document Delivery (interlibrary loan) service pulls books from the stacks and provides materials the Libraries do not own at no charge . Request items via ILLiad .  
• The Libraries’ online resources are available from off-campus to all TTU students.  
• Amazing technology is available including a 3D Makerspace, Virtual Reality Lab, 3D Animation Lab, hundreds of computers, printing, book/document scanners, and WiFi throughout the Library.  
• Dynamic Media Services (DMS) loans DVDs, audiobooks, SLR cameras, HD camcorders, projectors, and lighting kits. The DMS is on the second floor (east side) of the Library.  
• The Libraries' digital repository, ThinkTech, provides access to the full text of electronic dissertations and theses written at TTU.

Library Spaces

Copyright for dissertations.

• Copyright for Dissertations The University of Michigan has created a guide to copyright for graduate students working on dissertations and theses. It provides detailed advice on what is permissible and what you need to seek permission to use in your work.

Helpful Free Resources

• Helpful Free Resources This is a useful set of links to on-campus and off-campus free resources in the areas of work, leisure, and finance, including people who can help.
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• Last Updated: Jul 1, 2024 3:58 PM
• URL: https://guides.library.ttu.edu/gradstudents