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A Narrative Rewritten (open access)

A Narrative Rewritten

In A Narrative Rewritten, I explore two distinct periods of my past. One group of work deals with the emotional effects of trauma I experienced as a child during years of practicing ballet. The other celebrates a pivotal moment of spiritual awakening that gave me the strength to confront internal falsehoods I previously developed. I paint from observation, to engage with my subject and to ground myself in the present moment. In my oil paintings, I paint representationally, while delving in to the spectrum of abstraction. I use imagery symbolically from ballet and boxing to represent a shift from inadequacy to empowerment.
Date: May 2020
Creator: Aaron, Hannah
Object Type: Text
System: The UNT Digital Library

Adolescent Self-Theories of Singing Ability within the Choral Hierarchy

The purpose of this study was to explore adolescent self-views of singing ability through both implicit theories and self-concept meaning systems. A secondary purpose of this study was to examine these self-views specifically in the context of a choral hierarchy. Using a researcher-designed survey instrument, I gathered data from middle- and high-school students currently enrolled in a choir program organized in a hierarchical structure. I analyzed descriptive statistics of survey responses to items designed to measure implicit theories of singing ability, singing self-concept, and goal orientation. I also examined differences among participants by ensemble placement in implicit theory and self-concept scores, correlation between implicit theory and self-concept, and whether implicit theory, self-concept, goal orientation, or current enrollment could predict future enrollment decisions. In addition to these quantitative measures, I coded open-ended responses to two failure scenarios and examined participant responses by ensemble and gender. Both implicit theory and self-concept scores were higher for participants at the top of the choral hierarchy than at the bottom. Open-ended responses, however, did not align with the implicit theory scale and a number of students presented a false growth mindset. Open-ended responses also indicated that failure scenarios were likely to result in an altered …
Date: May 2020
Creator: Adams, Kari
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Resurrection Attempts: Essays

This dissertation is composed of a critical preface, "Reconciling Art and Account in the Creative Essay," and the essay collection Resurrection Attempts: Essays. The preface situates the following essay collection within the genre of contemporary creative nonfiction. Specifically, it argues that genre-bending or genre hybridity are inherent and unavoidable features of creative nonfiction writing and should be celebrated, rather than denied or lamented. It points to other writers who deliberately challenge the bounds of genre, and discusses some of the collection's innovations in form and other ways it offers experimentation, such as use of unusual or borrowed points of view, disruption of chronology, and adoption of elements from other genres of writing, including fiction, poetry, and academic. Ultimately, embracing the artistic side of creative nonfiction (as opposed to its "purely" journalistic side) allows for heightened intimacy with the reader, a much wider breadth of storytelling, and a more vulnerable—and therefore more truthful—interrogation of legacy and the human experience. Resurrection Attempts is a collection of essays exploring the writer's rural Texas childhood and the early and tragic losses of her parents, including the effect of those experiences on her adult life and performance of motherhood. The voices of the writer's sisters …
Date: May 2020
Creator: Al-Qasem, Ruby
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Novel Approaches for Enhancing Resistance to Fusarium graminearum in Arabidopsis and Wheat by Targeting Defense and Pathogenicity Factors

Fusarium head blight (FHB) is an important disease of small grain cereals including wheat that affects grain quality and yield. The fungus Fusarium graminearum (Fg) is the major agent of this disease. Lack of natural resistance has limited ability to control wheat losses to this disease. Developing new approaches is critical for increasing host plant resistance to this fungus. This work has identified four processes that can be targeted for enhancing host plant resistance to FHB. The first involves targeting the pattern-triggered immunity mechanism to promote host plant resistance. Two other approaches involved reducing activity of susceptibility factors in the host to enhance plant resistance. The susceptibility factors targeted include accumulation of the phytohormone jasmonic acid and the 9-lipoxygenase pathway that oxidizes fatty acids. Besides suppressing host defenses against Fg, jasmonic acid also directly acts on the fungus to promote fungal growth. 9- lipoxygenases similarly suppress host defenses to promote fungal pathogenicity. Another approach that was developed involved having the plant express double stranded RNA to target fungal virulence genes for silencing. This host-induced gene silencing approach was employed to target two fungal virulence genes, the lipase encoding FGL1 and salicylate hydroxylase encoding FgNahG, which the fungus secretes into the …
Date: May 2020
Creator: Alam, Syeda Tamanna
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Traffic Forecasting Applications Using Crowdsourced Traffic Reports and Deep Learning (open access)

Traffic Forecasting Applications Using Crowdsourced Traffic Reports and Deep Learning

Intelligent transportation systems (ITS) are essential tools for traffic planning, analysis, and forecasting that can utilize the huge amount of traffic data available nowadays. In this work, we aggregated detailed traffic flow sensor data, Waze reports, OpenStreetMap (OSM) features, and weather data, from California Bay Area for 6 months. Using that data, we studied three novel ITS applications using convolutional neural networks (CNNs) and recurrent neural networks (RNNs). The first experiment is an analysis of the relation between roadway shapes and accident occurrence, where results show that the speed limit and number of lanes are significant predictors for major accidents on highways. The second experiment presents a novel method for forecasting congestion severity using crowdsourced data only (Waze, OSM, and weather), without the need for traffic sensor data. The third experiment studies the improvement of traffic flow forecasting using accidents, number of lanes, weather, and time-related features, where results show significant performance improvements when the additional features where used.
Date: May 2020
Creator: Alammari, Ali
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Open Access and Scholarly Communications: Looking Ahead to a Post-Pandemic Future

Presentation that covers open access in the context of Ethiopia. This presentation provides examples of the background of open access and scholarly communication, the policy frameworks in place (including the White House OSTP Call to Action), the challenges and opportunities in relation to developing nations, and the emerging trends in institutional initiatives in Ethiopia.
Date: May 2, 2020
Creator: Alemneh, Daniel Gelaw
Object Type: Presentation
System: The UNT Digital Library
A Genetic Approach to Identify Proteins that Interact with Eukaryotic Microtubule Severing Proteins via a Yeast Two Hybrid System (open access)

A Genetic Approach to Identify Proteins that Interact with Eukaryotic Microtubule Severing Proteins via a Yeast Two Hybrid System

Microtubules (MT) are regulated by multiple categories of proteins, including proteins responsible for severing MTs that are therefore called MT-severing proteins. Studies of katanin, spastin, and fidgetin in animal systems have clarified that these proteins are MT-severing. However, studies in plants have been limited to katanin p60, and little is known about spastin or fidgetin and their function in plants. I looked at plant genomes to identify MT-severing protein homologues to clarify which severing proteins exist in plants. I obtained data from a variety of eukaryotic species to look for MT-severing proteins using homology to human proteins and analyzed these protein sequences to obtain information on the evolution of MT-severing proteins in different species. I focused this analysis on MT-severing proteins in the maize and Arabidopsis thaliana genomes. I created evolutionary phylogenetic trees for katanin-p60, katanin-p80, spastin, and fidgetin using sequences from animal, plant, and fungal genomes. I focused on Arabidopsis spastin and worked to understand its functionality by identifying protein interaction partners. The yeast two-hybrid technique was used to screen an Arabidopsis cDNA library to identify putative spastin interactors. I sought to confirm the putative protein interactions by using molecular tools for protein localization such as the YFP system. …
Date: May 2020
Creator: Alhassan, Hassan H
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Interorganizational Collaboration in Implementing Urban Greening Policies in Saudi Arabia: An Institutional Collective Action Framework

This dissertation aims to examine the relationship between interorganizational collaboration and the implementation of urban greening policy. Specifically, it discusses bonding and bridging relationships that explain a successful interorganizational collaboration, and to what extent these factors explain the perception of success in the implementation of public programs. The effects of risks of collaboration on the implementation of urban greening policy are also studied. To frame the analysis, this dissertation uses Feiock's institutional collective action (ICA) framework, which aims to understand successful interorganizational collaboration and policy implementation across sectors. The collection of data was carried out in Riyadh City in Saudi Arabia, which is located in the center of Saudi Arabia. In this study, the unit of analysis is the networks of relationships among organizations that work with the Royal Commission for Riyadh City (RCRC). The data were obtained from 44 organizations collaborating to implement urban greening projects in Riyadh City and were collected over 17 days from June 15, 2019 to July 2, 2019. The sampling technique used in this study was snowball sampling. The main statistical methods employed for hypothesis examination were social network analysis (SNA) and ordinary least squares (OLS). The key empirical results indicated that there were …
Date: May 2020
Creator: Alkhurayyif, Mohammed A.
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Third-Party Perception: Implications for Governance and Communication of Health Risks during the Umrah in Saudi Arabia

The current study projects the third-person perception phenomenon into the area of emergency management, specifically regarding risk communication in the context of religious gatherings. This study utilized the Umrah religious gathering in Makkah, Saudi Arabia, during summer 2019 as a case study (N = 257). This study aimed to investigate whether pilgrims perceive there was a greater effect of health information on others than on themselves. Survey results were translated and then coded and analyzed statistically using SPSS software. The findings indicated that third-person perception existed among pilgrims. Specifically, the perception of pilgrims that the influence of news about MERS-CoV, believed to be undesirable in its effect on themselves, was greater on others than on themselves was found statistically significant. Further, the findings indicated that the more pilgrims watched, listened to, or read news about MERS-CoV, the larger the effect of the news they perceived on themselves and others was. Thus, exposure to MERS-CoV news did not increase, but rather decreased the perception of difference between self and others. Also, the empirical findings indicated that pilgrims who were knowledgeable about MERS-CoV could relate to the coverage. Moreover, if pilgrims believed they were affected by MERS-CoV news, they believed that the …
Date: May 2020
Creator: Alkhurayyif, Saad A.
Object Type: Thesis or Dissertation
System: The UNT Digital Library

[Katy Allred's cat sleeping on her lap]

Photograph of Katy Allred's cat, Katniss, curled up sleeping on Allred's lap. The keyboard of a laptop computer is also visible.
Date: May 12, 2020
Creator: Allred, Katy
Object Type: Photograph
System: The UNT Digital Library

Sources of Household Resilience during the 2018/2019 Saudi Floods

This research studied the relationship between social capital and household resilience. In particular, how bonding and bridging relationships affect household resilience was the question selected to illustrate this relationship between social capital and household resilience. Moreover, how the vulnerability of household impacts household resilience was also empirically examined. Social capital theory and vulnerability paradigm studies were used to discover explanations for why and how social connectedness and social vulnerabilities impact household resilience. Survey questionnaires were used to collect data in the main two cities in Saudi Arabia, Riyadh and Jeddah. A cross-sectional design was used to collect data. Statistical descriptions and inferences were conducted. In fact, multiple linear regression, T-test, and one way ANOVA were the three principal technics used to make statistical inferences. This study empirically found evidence there are relationships between bonding relationships and household resilience, and also relationships between the economic level of the household and household resilience. However, no evidence was found for relationships between bridging relationships and household resilience, or between other vulnerability factors and household resilience. Other vulnerability factors included gender, minority group, and language.
Date: May 2020
Creator: Alshammari, Abdullah Fahad
Object Type: Thesis or Dissertation
System: The UNT Digital Library
The Rise of Postmethod Epistemology in the L2 English Teaching Field (open access)

The Rise of Postmethod Epistemology in the L2 English Teaching Field

Citation analysis, which provides insights into the influence of particular scholarly work in a field of study, can also show epistemological "turns" through patterns of citations over time. This study explored the impact of postmethod epistemology on the shared knowledge of the English-as-a-second-language (L2) education community over a 26-year period. The approach consisted of tabulating and analyzing citations in 125 articles from two major journals, Teaching English to Speakers of Other Languages Quarterly (TESOL Qrtrly) and English Language Teaching Journal (ELT). The time period covered was 1994, when the term postmethod was introduced in TESOL Qrtrly, through 2019. Attention went to the following questions for each journal and for both journals together: (i) who is the most influential of the three major postmethod authors, B. Kumaravadivelu, Richard Allwright, or Hans Stern? (ii) what was the most cited postmethod publication? and (iii) have there been patterns over time for citations of postmethod authors and publications and for the use of the term postmethod? Of the three postmethod authors, Kumaravadivelu was the most cited in the two journals combined. For TESOL Qrtrly, Kumaravadivelu was the most cited, and Stern was second. For ELT, Kumaravadivelu and Allwright had an equal number of citations, …
Date: May 2020
Creator: Alsuwat, Sami Eid
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Entrepreneurial Orientation: An Interdisciplinary Approach to Public Entrepreneurship in Saudi Arabia

The increasing demands of efficiency and effectiveness in the public sector encourage political leaders and policy makers to adopt and apply advanced techniques and solutions to overcome flaws in public organizational performance. Entrepreneurship was introduced in several Western countries as a way to improve their processes and management through adopting private sector management principles and market-oriented techniques. In 2015, Saudi Arabia announced its 2030 vision, which introduced hundreds of innovative and creative initiatives aiming to overcome issues of the turbulent environment, future oil depletion, budgetary pressures, and public demands for efficiency and effectiveness. Building on interdisciplinary perspectives, this study investigates entrepreneurial orientation among Saudi public employees from all administrative regions across the country. Building on McClelland's theory of motivation, this study hypothesizes that the motives of need for achievement, need for affiliation, and need for power are positively associated with entrepreneurial behavior. It also hypothesizes that excessive organizational hierarchy, formalization, and lack of autonomy constrain employees' entrepreneurial activities. Moreover, this study adopts a sociological perspective in proposing solutions for facilitating entrepreneurial orientation among public employees by hypothesizing that human and social capital promote an entrepreneurial orientation. Multiple regression analysis reveals that Saudi public employees with a higher level of need …
Date: May 2020
Creator: Alzomia, Abdullah
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Southwest Retort, Volume 72, Number 9, May 2020 (open access)

Southwest Retort, Volume 72, Number 9, May 2020

This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community.
Date: May 2020
Creator: American Chemical Society. Dallas/Fort Worth Section.
Object Type: Journal/Magazine/Newsletter
System: The UNT Digital Library
The Newsletter of the Texas Chapter of the American Fisheries Society, Volume 46, Number 1, May 2020 (open access)

The Newsletter of the Texas Chapter of the American Fisheries Society, Volume 46, Number 1, May 2020

Newsletter of the Texas Chapter of the American Fisheries Society containing information about the organization, membership, and field of aquaculture and ecosystem management.
Date: May 2020
Creator: American Fisheries Society. Texas Chapter.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
The Effects of Probiotics on Growth, and Metabolism in Juvenile Oreochromis mossambicus (Mozambique Tilapia) (open access)

The Effects of Probiotics on Growth, and Metabolism in Juvenile Oreochromis mossambicus (Mozambique Tilapia)

Improving growth, lowering mortality rates, and having a faster turnaround to harvest is essential for the future of commercial aquaculture. The primary goal of this study was to determine if introducing a single strain probiotic Lactobacillus rhamnosus IMC 501 into the feed regimen of a commercially important aquaculture freshwater fish, Mozambique tilapia (Oreochromis mossambicus), would decrease mortality; change metabolic rates; and increase tissue wet mass (MW), standard length, growth rate and feed conversion rate (FCRs). IMC501 was added to the fishmeal in four increasing concentrations and compared to a control without probiotics. Results from two-way ANOVAs showed that both treatment levels and elapsed time had a significant effect on both mean standard length and wet mass; in the latter case, time points and treatments interacted with one another, showing that tilapia grew best with a moderate level of probiotics present. The growth benefits of probiotics continued for months after the initial treatments. Oxygen consumption (metabolic rate) was measured using closed respirometry and resulted in recording the first values for juvenile tilapia treated with probiotics. For oxygen consumption, there were significant treatment and time effects with significant interactions, indicating that metabolism increased with probiotics once the dosage exceeded three times the …
Date: May 2020
Creator: Anderson, Michael Earl
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Copper Wire-Bonding Reliability: Mechanism and Prevention of Galvanic Aluminum Bond Pad Corrosion in Acidic Chloride Environments

Access: Use of this item is restricted to the UNT Community
With the reliability requirements of automobile microelectronics pushing towards near 0 ppb levels of failure control, halide induced corrosion issues in wire bonded devices have to be tightly controlled to achieve such a high reliability goal. With real-time corrosion monitoring, for the first time we demonstrated that the explosive H2 evolution coupled with the oxygen reduction reaction, occurring at the critical Al/Cu interfaces, is the key driving force for the observed aggressive corrosion. Several types of passivation coating on Cu wire surfaces to effectively block the cathodic H2 evolution were explored with an aim to disrupt this explosive corrosion cycle. The properties of the protective coating were evaluated using various analytical techniques. The surface coating exhibited high thermal stability up to 260 °C (evaluated using TGA analysis). A uniform, highly hydrophobic coating (surface contact angle of >130° with water), was achieved by carefully controlling CVD parameters such as time of deposition, surface control of Cu metal, amount of inhibitor compound loading, temperature of coating process etc. FTIR spectroscopy combined with corrosion screening was used to optimize the CVD passivated coating with strong chemisorption. SEM and EDX, XPS were carried out on various coated surfaces to understand the composition and selectivity …
Date: May 2020
Creator: Asokan, Muthappan
Object Type: Thesis or Dissertation
System: The UNT Digital Library
An Evaluation of a Waiting Period and DRL on Reducing Mands serving as Precursors to Self-Injurious Behavior (open access)

An Evaluation of a Waiting Period and DRL on Reducing Mands serving as Precursors to Self-Injurious Behavior

Extensive research has been conducted demonstrating the utility of differential reinforcement as an effective intervention for self-injurious behavior. However, the majority of this literature requires teaching an alternative response to access reinforcement. Further evaluation of treating self-injurious behavior in individuals that already possess the repertories to contact reinforcement appropriately. Prior to initiating the study, functional assessments were completed for both participant that demonstrated high-rate bursts of mands served as a reliable precursor to self-injurious behavior. In the present study, we evaluated a waiting period and differential reinforcement of low rate behavior on reducing mands while keeping self-injurious behavior at or near zero levels. Results indicated that shorter waiting periods and DRL values were effective at reducing mands and maintaining near zero levels of self-injurious behavior.
Date: May 2020
Creator: Baak, Sara Ann
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Gamification to Solve a Mapping Problem in Electrical Engineering (open access)

Gamification to Solve a Mapping Problem in Electrical Engineering

Coarse-Grained Reconfigurable Architectures (CGRAs) are promising in developing high performance low-power portable applications. In this research, we crowdsource a mapping problem using gamification to harnass human intelligence. A scientific puzzle game, Untangled, was developed to solve a mapping problem by encapsulating architectural characteristics. The primary motive of this research is to draw insights from the mapping solutions of players who possess innate abilities like decision-making, creative problem-solving, recognizing patterns, and learning from experience. In this dissertation, an extensive analysis was conducted to investigate how players' computational skills help to solve an open-ended problem with different constraints. From this analysis, we discovered a few common strategies among players, and subsequently, a library of dictionaries containing identified patterns from players' solutions was developed. The findings help to propose a better version of the game that incorporates these techniques recognized from the experience of players. In the future, an updated version of the game that can be developed may help low-performance players to provide better solutions for a mapping problem. Eventually, these solutions may help to develop efficient mapping algorithms, In addition, this research can be an exemplar for future researchers who want to crowdsource such electrical engineering problems and this approach can …
Date: May 2020
Creator: Balavendran Joseph, Rani Deepika
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Light–matter interactions in two-dimensional layered tungsten diselenide for gauging evolution of phonon dynamics (open access)

Light–matter interactions in two-dimensional layered tungsten diselenide for gauging evolution of phonon dynamics

Article exploring phonon dynamics in mechanically exfoliated two-dimensional WSe₂ using temperature-dependent and laser-power-dependent Raman and photoluminescence (PL) spectroscopy. The work reported sheds fundamental insights into the evolution of phonon dynamics in WSe₂ and should help pave the way for designing high-performance electronic, optoelectronic and thermoelectric devices in the future.
Date: May 12, 2020
Creator: Bandyopadhyay, Avra S.; Biswas, Chandan & Kaul, Anupama
Object Type: Article
System: The UNT Digital Library

Design Tips & Tricks for Presentations and Posters

Presentation that highlights the use of basic design principles when creating presentations and posters. It was organized by the UNT Libraries' Career Development Committee and held virtually on May 12, 2020.
Date: May 12, 2020
Creator: Barham, Rebecca
Object Type: Presentation
System: The UNT Digital Library

A Spatial Decision Support System to Dynamically Compute and Map Neighborhood Indices

Neighborhoods are organic entities that are in a state of constant change and are driven by the specific context of the problem being investigated. The subsequent lack of consensus on a universal geographic definition for what constitutes a neighborhood can lead to biased interpretations of relationships between human activities and place. Further, while existing geographical information system software allows users to combine a range of geographic objects to generate regional units of analyses, their design does not explicitly assess how changing patterns, such as populations, impact the data expressed within them. This research develops an exploratory geographical information system framework that allows users to dynamically delineate neighborhoods based on user-specified characteristics. These include socioeconomic and similar measurements of neighborhood classification from information obtained from secondary data sources, including parcel data, land use/land cover information, and attribute data provided by the United States Postal Service. The proposed methodology creates custom geographies from readily available tract data obtained from various federal and state data repositories to produce indices. By allowing the user to dynamically weigh the combinations of variables used to define their neighborhood, this thesis introduces a solution to a common analytical problem in the discipline.
Date: May 2020
Creator: Barnett, Melissa Marie
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Mano De Obra (open access)

Mano De Obra

Juan Barroso's artwork depicts Mexican labor and the immigrant experience at the border. With the current political administration enforcing policies that dehumanize and force immigrants into the shadows, recognizing an immigrant’s humanity is vital. As the son of immigrant parents, he pays homage to his people and the dignity of their labor. He mixes 2- dimensional imagery, influenced by personal narratives, with 3-dimensional functional forms. Using a small watercolor brush, he paints his images with thousands of dots in a timeconsuming and labor-intensive process that becomes an act of devotion.
Date: May 2020
Creator: Barroso, Juan
Object Type: Text
System: The UNT Digital Library

[Bravo! Vail Music Festival cancellation notice letter]

Photograph of a typed letter from Bravo Vail! Music Festival's Board Chair, Artistic Director and Executive Director notifying the recipient about the cancellation of the summer event due to "health and safety...priorities" from Covid-19.
Date: May 7, 2020
Creator: Bernaert, Angelica
Object Type: Photograph
System: The UNT Digital Library