Hameline, Cassia Leigh. "Stay for the Heron: Essays." Doctor of Philosophy (English), May 2023, 146 pp., works cited, 27 titles. Stay for the Heron: Essays is an essay collection that explores truth, perception, and loss as it follows the writer's movement across landscapes that speak to a past she had, for so long, tried to run from. The essays in this collection seek to understand how we can write about difficult topics like abandonment, infidelity, and acts of self-destruction: do we get close to them? do we create distance? at what range are we able to relive the moments that caused us pain, or anger, or passion, or love and present them in written form for others to see? The collection challenges the narrative nonfiction form in preference for a more fluid, lyric, and hybrid genre that more accurately presents the material—at times fuzzy, difficult, confusing—at hand. Through its literary experimentations, such as fragmentation, lyricism, shifting points of view, and photography, the works here deconstruct what we consider "traditional" in the Essay genre and, instead, supports a shift towards a more contemporary tradition. The essays in Stay for the Heron explore the persona's geographical movement, paying close attention to the …

The dissertation analyzes three issues related to corporate environmental performance. In the first essay, I analyze the stock price reactions of the defendant firms and their peer firms to environmental lawsuits. Empirical evidence finds that the defendant and their peer firms experience negative and significant cumulative abnormal returns to the announcement of environmental lawsuits. Additionally, cross-sectional analyses find certain firm characteristics, such as profitability, growth opportunities and leverage can influence the market reaction. Furthermore, if the plaintiffs are government agencies or corporations instead of individual citizens, the defendant and peer firms experience higher negative market reactions. The second essay examines if a firm's environmental, social, and governance (ESG) performance can moderate the negative market response to environmental lawsuits. The results are mixed. The overall sample of the defendant and their peer firms show that ESG performance is not a significant factor in mitigating the negative market response. However, an interesting finding shows, for defendant and peer firms in the environmentally sensitive industries, better ESG ratings help reduce the adverse market reactions. The final essay investigates whether the defendant and peer firms improve their ESG performance in the next two years following the lawsuits. The results indicates that firms generally experience …

This study assessed music educators' health literacy, musician health literacy, and intentions to teach the health-related Fine Arts TEKS in ensembles. An online survey was developed using the integrated behavior model, Newest Vital Sign (NVS), and Musician Health Literacy Questionnaire (MHL-Q19). Texas music educators who taught secondary band, choir, or orchestra were recruited via email and social media. Results: This survey yielded N = 207 respondents, with 43%, 29%, 14.5%, and 13.5% teaching band, choir, orchestra, and multiple ensembles, respectively. Most participants (67.6%) demonstrated adequate health literacy by answering at least four items correctly on the NVS. Attitude (p =.47) and personal agency (p =.30) were significant predictors of behavioral intention, while perceived norm was not (R2 =.484). Including NVS total score and MHL-Q19 total score in the model showed that while both factors improved the model (ΔR2=.038), only NVS total score was significant (p =.26) in predicting behavioral intention. Music educators in this study had adequate health literacy, which may contribute to their intentions to teach health concepts in ensembles. However, future efforts to improve these intentions should focus on bolstering perceived norms and personal agency by providing music educators with opportunities to take charge of implementing these concepts …

In this dissertation, I study four choral works by Dr. Zanaida Stewart Robles through musical, thematic, and theoretical analysis to synthesize her compositional style. In addition to analysis, I created supplemental educational guides for each piece. These guides are intended to facilitate an intentional teaching process that leads to meaningful performances that engage the community. I investigate Robles' intersectional approach to composition as it reflects her identity as a Black, female composer. This project contextualizes Robles' voice and her impact on 21st-century choral music. I selected four works for study—"Umoja," "No Fairy Tale Here," "Can You See?" and "Psalm 61"— to represent three overarching themes in her oeuvre: spirituality, mental health awareness, and social justice. This research provides greater insight into Robles' choral works and serves as a thought-provoking introduction to commissioning works from underrepresented communities.

At the Northwest Regional Learning Center (NRLC), an alternative high school in Arlington, Washington serving only at-risk youth, a new ethics course was conducted to assist students with their social-emotional learning development (SEL) and provide NRLC staff with greater insight into the lived experiences of students. Through semi-structured interviews, longitudinal ethical position surveys, and in-class observational ethnographic notes, this study presents shifts in student ethical positions over time as students engaged in this new course. By drawing from the knowledge at-risk students bring to school and focusing on behaviorism, progressive teaching theory, and constructivism, this course promoted open, student-led discussion that helped establish and build critical thinking skills, learn about perspectives in relation to others, and analyze various ethical positions. Through learning more about the lived experiences of their students, teachers at NRLC were able to contextualize and accommodate individual student behaviors, needs, and beliefs over their high-school experience. Drawing from student beliefs and experiences, the new course content was largely created by the students, providing at-risk youth an environment to openly share their beliefs while directly relating course content to their lives outside of school. As a representation of the power that social connection, redistribution of power dynamics in …

This thesis explores the critical role of usability in software development and uses usability heuristics as a cost-effective and efficient method for evaluating various software functions and interfaces. With the proliferation of software development in the modern digital age, developing user-friendly interfaces that meet the needs and preferences of users has become a complex process. Usability heuristics, a set of guidelines based on principles of human-computer interaction, provide a starting point for designers to create intuitive, efficient, and easy-to-use interfaces that provide a seamless user experience. The study uses Jakob Nieson's ten usability heuristics to evaluate the usability of Stack Overflow posts, a popular Q\&A website for developers. Through the analysis of 894 posts related to usability, the study identifies common usability problems faced by users and developers, providing valuable insights into the effectiveness of usability guidelines in software development practice. The research findings emphasize the need for ongoing evaluation and improvement of software interfaces to ensure a seamless user experience. The thesis concludes by highlighting the potential of usability heuristics in guiding the design of user-friendly software interfaces and improving the overall user experience in software development.

Nobel laureate and economist Elinor Ostrom earned a Nobel prize in economic sciences in 2009 for her research on a community's ability to self-govern a common pool resource with the use of eight design principles. While Ostrom's accumulated efforts to analyze these principles and apply them to community resources have earned widespread recognition, these principles have yet to take off on a grand scale as a blueprint for self-governance systems globally. There is also a lack of empirical evidence that supports these principles as empirical investigations have yet to manipulate the principles individually or as an intervention package as independent variables. The purpose of the present study is to empirically test Ostrom's eight design principles in a tabletop game model of a community utilizing a common pool resource (CPR) by implementing as well as removing the principles within an adapted version of the board game Catan. In three groups, the CPR almost always fully crashed in baseline but not when Ostrom's principles were in place as game rules. Results indicated that Ostrom's design principles may organize participant responses and maintain resource levels over time more effectively than without Ostrom's rules applied.

Metaphor and Mimesis in an Animal Soundscape serves as a supplementary document for two pieces of contemporary concert music; HOWL, for viola, saxophone and fixed media, and Pastorale for viola and fixed media. Both works quote the second movement of Antonio Vivaldi's violin concerto, La Primavera. This quotation is used to support a musical program which explores the larger topic of metaphor in music. In addition, both pieces play with contemporary trends in music including, but not limited to, acoustic ecology and spectralism.

As countries pledge their commitment to a net-zero future, much of the previously forgotten climate change research were revitalized by efforts from both governmental and private sectors. In particular, the utilization of lignocellulosic materials saw a special spotlight in research interest for its abundance and its carbon removal capability during photosynthesis. The initial effort in mimicking enzymatic active sites of β-glucosidase will be explored. The crystalline covalent organic frameworks (COFs) allowed for the introduction of a variety of noncovalent interactions, which enhanced the adsorption and the catalytic activity against cellobiose and its glycosidic bonds. The physical processes associated with this reaction, such as the kinetics, equilibrium, and activation energies, will be closely examined and compared with existing standard materials and comparable advanced catalysts. In addition, several variants of COFs were synthesized to explore the effect of various noncovalent interactions with cellobiose. A radical-bearing COF was synthesized and characterized. The stability of this radical was examined by electron paramagnetic resonance spectroscopy (EPR) and its oxidative capability tested with model lignin and alcoholic compounds. The reaction products are monitored and identified using gas chromatography-mass spectroscopy (GC-MS). An oxidative coupling of phenol was explored, and its initial results are presented in chapter 5.

Laser-based additive manufacturing is inherently associated with extreme, unprecedented, and rapid thermokinetics which impact the microstructural evolution in a built component. Such a unique, near to non-equilibrium microstructure/phase evolution in laser additively manufactured metallic components impact their properties in engineering application. In light of this, the present work investigates the unique microstructural traits as a result of process induced spatial and temporal variation in thermokinetic parameters in laser directed energy deposited CoCrMo biomedical alloy. The influence of such a unique microstructural evolution in laser directed energy deposited CoCrMo on electrochemical response in physiological media was elucidated and compared with a conventionally manufactured, commercially available CoCrMo component. Furthermore, while investigation of the electrochemical response, such a microstructural evolution in laser directed energy deposited CoCrMo led to in-situ surface modification of the built components in physiological media via selective, non-uniform electrochemical etching. Such in-situ surface modification resulted in enhanced biocompatibility in terms of mammalian cell growth, cell-substrate adhesion, blood compatibility, and antibacterial properties indicating improved osteointegration, compared to a conventionally manufactured, commercially available CoCrMo component.

Principals today face greater job complexities and more diverse challenges than ever before because of decreases in resources, funding, and district support, along with increases in accountability expectations, student diversity, and unfunded federal and state mandates. Principals today are tasked with myriad responsibilities ranging from facilities management and fiscal and legal concerns to instructional leadership and stakeholder relationships. The purpose of this study is to examine the role of formal, structured leadership coaching and engage in further inquiry to determine the effect of leadership coaching on principal efficacy in a complex and challenging educational environment. This convergent parallel mixed-method research approach is meant to determine if elementary principals' participation in formal leadership coaching programs increases their level of efficacy, as well as how different districts structure and implement these programs for the benefit of their administrators.

This work focused on laser powder bed fusion (LPBF) of H13 tool steel to examine microstructure and melt pool morphology. Experiments were conducted with varying laser power (P) in the range of 90-180 W and scan speed (v) in the range of 500-1000 mm/s. layer thickness (l) and hatch spacing (h) were kept constant. Volumetric energy density (γ) was calculated using the above process parameters. In order to find a relation between the recorded density and top surface roughness with changing process parameters, set of equations were derived using the non-dimensional analysis. For any chosen values of laser power, scan speed, hatch spacing and layer thickness, these equations help to predict top surface roughness and density of LPBF processed H13 tool steel. To confirm the universal relation for these equations, data of In718 and SS316L processed in LPBF was input which gave a R-square of >94% for top surface roughness and >99% for density. A closed box approach, response surface model, was also used to predict the density and surface roughness which allows only in the parametric range. Material microstructures were examined to identify the melting modes such as keyhole, transition and conduction modes. X-ray diffraction data revealed that there …

The purpose of the study was to investigate the effects of hypoxia responses during moderate- and severe-intensity exercise performed to exhaustion. Nine healthy university students, five men, and four women (mean ± SD, age, 23 ± 1 y; height 167 ± 8 cm; weight 73 ± 7 kg) performed a cycle ergometer test in normoxia and hypoxia conditions. Cardiorespiratory, metabolic, and perceptual responses were measured during moderate-intensity and during severe-intensity exercise. During moderate-intensity exercise, hypoxia exaggerates the cardiorespiratory and ventilatory responses and delays the attainment of the steady state VO2 kinetics. However, during severe-intensity exercise, compensatory responses were not adequate, oxygen demand was slightly increased and VO2 max was reduced in hypoxia affecting the overall performance. Therefore, the greater reliance on the anaerobic pathways could have a serious implication on the performance of the exercise over a wide range of intensities.

The growth of the pecan industry in San Saba offers a microcosm into the evolution of the industry as a whole. Individual ingenuity in agriculture, business, and technology carved a path for success for the native nut in San Saba. Thanks in part to the efforts by founding families of the area and their descendants, the pecan has become a widely-used ingredient in holiday sweets of the American South and a symbol of Texas identity. Yet, the industry's development and the lives of the people who have cultivated it are stories that have remained largely untold. Through oral histories with family pecan growers, descendants of migrant farm laborers, and others working in the industry as well as primary sources such as those from early pecan sales catalogs, United States Department of Agriculture and other government documents, this project will trace the history of the pecan in San Saba – including how it has shaped the natural landscape and the individual and collective identities of San Saba and its residents.

Through the U.S. Lend-Lease program, President Franklin D. Roosevelt sought to keep Joseph Stalin's Red Army fighting Adolf Hitler's forces to prevent a separate peace and Nazi Germany's colonization of Soviet territory and strategic resources during the Second World War. Yet after the Red Army's 1943 counterattacks, Roosevelt unnecessarily increased Soviet Lend-Lease aid, oversupplying Stalin's soldiers with more armament than they required for the Soviet Union's defense and enabling their subsequent conquest of East Central Europe and large parts of East Asia. Roosevelt's underestimation of the Red Army's capabilities, his tendency to readily rely on Soviet-influenced advisers, and his unquestioning acceptance of Stalin's implicit threats to forge a separate peace all contributed to his excessive arming of Moscow from 1943 forward. Expanding on the findings of other scholars, this work identifies and explains the impact of the Brest-Litovsk Treaty on Roosevelt's reasoning, the key role of the Arctic convoys in delivering material to the Red Army, and how the unnecessary aid routes through Iran and Alaska resulted in the oversupplying of Stalin's troops. Had Roosevelt not opened these unnecessary routes, the Arctic convoys could have continued to sufficiently supply the Red Army's defensive efforts without empowering it to aggressively spread …

Limited literature examines the impact of the displacement of boundary-spanning employees artificial intelligence (AI). Scholars and practitioners appear focused on tangible benefits of AI adoption, and do not seem concerned by any less tangible and possibly untoward implications of worker (particularly boundary-spanning worker) displacement. My dissertation addresses this gap in the literature. In Essay 1, a qualitative study is performed to anchor the research on the appropriate ethnographic setting, the firms where this displacement phenomenon is taking place, by utilizing the Straussian grounded theory approach. The outcome of iterative coding of the first order data collected from the interviews and content analysis is a conceptual framework which amongst other findings shows how the unique competences of boundary-spanning employees and those of AI are best suited for different spectra of interorganizational collaborative activities. In Essays 2 and 3, I investigate major themes that emerged from Essay 1 utilizing quantitative and qualitative research methods in both studies. Initially I test research models using structural equation modelling on practitioner survey data, after which I probe further via focused interviews to better understand the survey results. The two papers allow us to put forth several theoretical and managerial contributions, specifically emphasizing the positive essential …

With increasing data and technology, multiple types of data from the same set of nodes have been generated. Since each data modality contains a unique aspect of the underlying mechanisms, multiple datatypes are integrated. In addition to multiple datatypes, networks are important to store information representing associations between entities such as genes of a protein-protein interaction network and authors of a citation network. Recently, some advanced approaches to graph-structured data leverage node associations and features simultaneously, called Graph Neural Network (GNN), but they have limitations for integrative approaches. The overall aim of this dissertation is to integrate multiple data modalities on graph-structured data to infer some context-specific gene regulation and predict outcomes of interest. To this end, first, we introduce a computational tool named CRINET to infer genome-wide competing endogenous RNA (ceRNA) networks. By integrating multiple data properly, we had a better understanding of gene regulatory circuitry addressing important drawbacks pertaining to ceRNA regulation. We tested CRINET on breast cancer data and found that ceRNA interactions and groups were significantly enriched in the cancer-related genes and processes. CRINET-inferred ceRNA groups supported the studies claiming the relation between immunotherapy and cancer. Second, we present SUPREME, a node classification framework, by comprehensively …

Damaging tornadoes are possible in all U.S. regions beyond the traditionally recognized "tornado alleys" in the southern plains and mid-south. Hence, this research examines how study participants respond to rare tornado events. Specifically, how disaster experiences affect risk perceptions and protective actions when facing a rare tornado event. This study used the protective action decision model (PADM) as the theoretical lens to investigate this issue. The PADM shows that personal characteristics, including personal disaster experience, could affect risk perceptions and how protective action decisions are made. This study applies the theory by recruiting 136 human subjects from the state of Washington to participate in a social experiment. The participants take part in a study that includes hypothetical tornado scenarios, ranging from thunderstorm warning to a tornado emergency then answering questions regarding the presented scenarios. Findings suggest that disaster experience and demographics influence how people perceive and respond to tornado disasters. Overall, people with direct and indirect tornado experiences showed significantly lower risk perceptions in the early stages of the threat when compared with those without any tornado experiences. Their tornado risk perceptions later increased when the threats were higher, and they tended to be more complacent regarding protective actions. This …

In this dissertation, I theorize on how gaslighting manifests in managerial and organizational settings. I discuss the process of gaslighting and how the use of various manipulation tactics manifests between people in organizations over time. I take three distinctive approaches to study this complex phenomenon. First, using a rich case study, I develop new theory to explain how one notorious child molester was able to sustain a career for decades while assaulting hundreds of children and young women. In doing so, I introduce the concept of gaslighting which previously has only been rigorously applied to intimate interpersonal relationships in domestic (e.g., at home) settings. In essay 2, I expand on the individual level theory developed in essay 1 to develop a more generalized theory of gaslighting in organizations. I situate gaslighting within a nomological net of related constructs and illustrate how gaslighting is a unique construct with different antecedents and consequences that occurs in organizations more often than it should. In my final essay, I build on one of the propositions developed in essay 2 and empirically test what antecedents are likely to influence whether or not a firm is accused of gaslighting on Twitter. Through doing so, I find …

The invariant theory of finite reflection groups has rich connections to geometry, topology, representation theory, and combinatorics. We consider finite reflection groups acting on vector spaces over fields of arbitrary characteristic, where many arguments of classical invariant theory break down. When the characteristic of the underlying field is positive, reflections may be nondiagonalizable. A group containing these so-called transvections has order which is divisible by the characteristic of the underlying field, so is in the modular setting. In this thesis, we examine the action on differential derivations, which include products of differential forms and derivations, and identify the structure of the set of invariants under the action of groups fixing a single hyperplane, groups with maximal transvection root spaces acting on vector spaces over prime fields, as well as special linear groups and general linear groups over finite fields.

Belgian composer Joseph Jongen (1873-1953) was an eclectic composer who successfully maintained his own unique musical vocabulary—particularly in his piano compositions. Jongen composed very little between 1940-1941—the period in which he and his family fled to the countryside of Mazères, France, living as refugees for several months before returning to Sart-lez-Spa, Belgium, due to the outbreak of WWII. Reflective of this time in his life, Vingt-quatre petits préludes dans tous les tons pour piano, op. 116 is composed in a particularly intimate and despairing way. Through a complete Schenkerian analysis and outline of the musical framework of op. 116—Jongen's last collection of piano pieces—this dissertation sheds light on the technique, imagination, and uniqueness of Jongen's WWII-period piano compositions. More specifically, this research outlines the deep-level tonal and formal structures, investigates the cryptic semantic meaning and intimate personal expression, and defines the aesthetic achievements of Jongen's Twenty-four Little Preludes in All Keys for Piano, op. 116.

The current study sought to explore play therapists' barriers to engaging parents in their clinical work as well as understand the relationship between play therapist characteristics and their attitudes toward parents. Using a demographic questionnaire, Therapist Barriers to Engaging Parents (TBEP), and the Counseling Self- Estimate Inventory (COSE), 136 members of the Association for Play Therapy were surveyed to explore predictors to engaging with parents. Overall, play therapists reported low scores on barriers to engaging parents indicating play therapists are likely to report positive attitudes toward working with parents. Through two multiple regression analyses measuring the predictive value of self-efficacy subscales including Dealing with Difficult Clients and Counseling Process, play therapist identification as a parent, years of experience, and hours of training on parent engagement, both models demonstrated statistically significant findings with large effect sizes. This study found that play therapist self-efficacy was the strongest predictor of play therapists' attitudes toward parents accounting for approximately 80% of the variance in the models. Play therapists' identification as a parent as well as years of practice also predicted their barriers to engaging parents. Hours of training in parent engagement had no relationship to TBEP scores. Implications for practice include a need to …

In his Southern Harmony collection, William Duckworth extracts existing material from shape-note hymns found in William Walker's 1835 publication A Southern Harmony and Musical Companion. He then applies minimalist and postminimalist processes to this material to create innovation choral compositions. This document provides a comprehensive analysis of the methods used to construct all twenty works in Duckworth's collection by tracing the extracted source material through the fabric of the new compositions. This study provides substantial evidence of Duckworth's place as a pioneer of the postminimalist genre. It also provides a discussion on the vocal implications of utilizing shape-note hymns as source material as traditional performances of the genre are typically associated with a unique vocal style.

In an organism's natural environment, there are always an uncountable number of stimuli, and stimulus features, available to gain control over behavior. When these component stimuli are presented simultaneously, this new stimulus compound can occasion a previously unseen effect on behavior. Stimulus compounding is a method used to better understand how variables in stimulus features may impact the final effect on an organism's responding when presented with a stimulus compound. While stimulus compounding experiments are often conducted using intermodal tone and light stimuli, it is conducted far less often using intramodal stimuli, potentially due to the competing stimulus features of same-modality stimuli. Even less conducted research has been done using two odor component stimuli, despite the large impact odor has on many species' behavior. The purpose of this study was to conduct a stimulus compounding experiment using intramodal ambient odor stimuli in rats, to see what kind of effect a mixed odor compound would have on the subject's behavior. This was done using a wind tunnel designed operant chamber, where both subjects were trained to respond to independently presented odor stimuli. Following training a compound mixture of both component odors was presented to the subjects. The results of this study …