Search Results

open access

Collaborative Research: Framework Implementations: CSSI: CANDY: Cyberinfrastructure for Accelerating Innovation in Network Dynamics

Description: Research addressing the lack of a comprehensive cyberinfrastructure that supports innovative research challenges in large-scale, complex, dynamic networks by developing a novel platform, called CANDY (Cyberinfrastructure for Accelerating Innovation in Network Dynamics), based on efficient, scalable parallel algorithm design for dynamic networks and high-performance software development with performance optimization.
Date: 2021-09-01/2025-08-31
Creator: Bhowmick, Sanjukta
Partner: UNT College of Engineering
open access

CAREER: Fundamental Limits of Cryptographic Primitives Through Network Information Theory

Description: Research project studying the fundamental limits of a diverse array of cryptographic primitives through network information theory and coding tools. The project takes an information theoretic view of the investigation of the fundamental limits of cryptographic primitives. The project is expected to unveil theoretical and practical insights into cryptographic primitives, and enhance the understanding on their fundamental limits.
Date: 2021-07-01/2026-06-30
Creator: Sun, Hua
Partner: UNT College of Engineering
open access

CAREER: Reinventing Network-on-Chips of GPU-Accelerated Systems

Description: Research seeking to reinvent on-chip networks for GPU-accelerated systems to remove a communication bottleneck. A major outcome of the project is a set of techniques that enable the development of effective and efficient network-on-chip architectures. Graphics processing units (GPUs) have rapidly evolved to become high-performance accelerators for data-parallel computing. To fully take advantage of the computing power of GPUs, on-chip networks need to provide timely data movement to satisfy the requests of data by the processing cores. Currently, there exists a big gap between the fast-growing processing power of the GPU processing cores and the slow-increasing on-chip network bandwidth. Because of this, GPU-accelerated systems are interconnect-dominated and the on-chip network becomes their performance bottleneck.
Date: 2021-06-01/2026-05-31
Creator: Zhao, Hui
Partner: UNT College of Engineering
open access

Formulating a Scalable Approach to Patron-Requested Digitization in Archives

Description: This article examines how archives were forced to rethink their modes of providing access to physical collections because of the coronavirus of 2019 (COVID-19). Whereas difficult copyright questions raised by reproducing items could previously be skirted by requiring researchers to work with materials in person, the long-term closure of reading rooms and decrease in long-distance travel mean that archives need a workflow for handling user digitization requests that is scalable and requires consulting only easily identifiable information and, assuming full reproduction is off the table, reproducing items in a collection under 17 U.S.C. § 108 or through a strategy of rapid risk assessment. There is a challenge in creating a policy that will work across different formats and genres of archival materials, so this article offers some suggestions for how to think about these parameters according to US copyright law and calls for a committee of experts to work out a model policy that could serve remote users of archival collections even after the COVID-19 crisis has passed.
Date: June 1, 2021
Creator: Hawkins, Kevin S. & Judkins, Julie
Partner: UNT Libraries
open access

Making Meetings More Meaningful: An Exploration of Meeting Science in Libraries

Description: This article adds to the growing body of research in meeting science, explored from a library perspective. The authors investigate the predictors of success for productive meetings, librarian perceptions of effective meeting leadership, and best practices for meeting leadership.
Date: May 12, 2021
Creator: Leuzinger, Julie & Brannon, Sian
Partner: UNT Libraries
open access

The Abraham Solvation Model Used for Prediction of Solvent-Solute Interactions and New Methods for Updating Parameters

Description: The Abraham solvation model (ABSM) is an experimentally derived predictive model used to help predict various solute properties. This work covers various uses for the ABSM including predicting molar enthalpies of vaporization, predicting solvent coefficients for two new solvents (2,2,5,5-tetramethyloxolane and diethyl carbonate), predicting values for multiple new ionic liquids (ILs). This work also introduces a novel method for updating IL ABSM parameters by updating cation- and anion-specific values using linear algebra and binary matrices.
Date: May 2021
Creator: Churchill, Brittani N
Partner: UNT Libraries

Accommodating People Safety Curriculum for Deaf and Hard of Hearing Students

Description: Children with disabilities are three to four times more likely to be abused than their non-disabled peers due to the impact of challenges related to behavior, cognition, language, social skills, and communication skills. In September of 2018, the Council for Exceptional Children (CEC) specifically noted the need to establish maltreatment prevention and response curricula and promote research and advocacy surrounding maltreatment of children with disabilities. One common curriculum recommended is Kidpower®. While Kidpower® shows promise in increasing people safety skills and offers some basic accommodations for use with disabled populations, a complete accommodation plan for deaf or hard of hearing students has not been developed. The purpose of this study was to explore how Kidpower® curriculum could be accommodated to meet the unique needs of deaf and hard of hearing students from the perspective of the deaf education community, including deaf adults, deaf education teachers, deaf education teacher preparation faculty, and parents with deaf or hard of hearing children. A combination of focus groups and interviews were utilized to review lessons and homework from the Kidpower® curriculum. Participants gave feedback on obstacles and ideas for accommodations and modifications that would mediate the challenges. Data were inductively coded and analyzed for themes. Findings indicated the deaf education community believes the curriculum needs media components, language modifications and teaching strategies, enhanced visual information, and representation of people and situations related to the lives of deaf and hard of hearing children to be an effective curriculum for this population.
This item is restricted from view until June 1, 2023.
Date: May 2021
Creator: Johnson, Jennifer A. L.
Partner: UNT Libraries
open access

Activating Artistry: Community Engagement Resources and Teaching Artist Strategies for the Bassoonist

Description: This document examines current practices and opportunities in the music performance field related to artistic citizenship, community engagement, and the field of teaching artistry. The relationship of musicians to their audiences and communities has shifted significantly in the twenty-first century, and there is an increasing need to redefine the essential skills of the professional musician. Derived from the field of teaching artistry, the concept of "activating artistry" suggests that our greatest strength and power as artists lies in drawing out individual artistic expression in other people, and it is with this power that artists as a workforce can create meaningful change in society. This intention could be manifested in many different contexts during the course of a given music career, however, developing the tool kit necessary for engaging in such work is not widely emphasized in the training of musicians. What tools can be provided for students and professionals to help them navigate both traditional and evolving career paths in music? How are bassoonists doing as a field in addressing the imperative of community engagement and artistic citizenship? How might we explore more collaborative ways to engage with our diverse communities – ways that value their perspectives? These questions guide an exploration of current practices in the bassoon field, with an overall goal of providing practical examples, resources, and inspiration for engaging in the work of activating artistry. Central to the discussion is the intersection of the professional bassoonist with the teaching artist field. Examples of lesson plans/strategies and ideas for curating educational performances demonstrate potential uses of the bassoon and its repertoire in teaching artist residencies and other community engagement settings.
Date: May 2021
Creator: Spring, Staci Alane
Partner: UNT Libraries

Adult Attachment Anxiety and Relationship Satisfaction: The Role of Dedication and Constraint Commitment

Description: Adult attachment has been found to play an important role for romantic relationship satisfaction. Specifically, the existent literature generally suggests that attachment anxiety is negatively related to relationship satisfaction. However, the underlying mechanism for this link still needs further exploration. The present study examined the direct and indirect effect of attachment anxiety on relationship satisfaction via two distinct relationship commitment variables: constraint commitment and dedication commitment. The final sample included 146 unmarried participants who were in a romantic relationship for at least three months. Results of multiple regression analyses on the indirect effect model indicated that attachment anxiety had a significant direct effect on relationship satisfaction as well as a significant indirect effect on relationship satisfaction via constraint commitment. However, the hypothesized indirect effect through dedication commitment was not supported. Findings are discussed from the adult attachment perspective. Counseling implications, limitations, and future research directions are outlined.
This item is restricted from view until June 1, 2022.
Date: May 2021
Creator: Chao, Wan Ju
Partner: UNT Libraries

Alloy Design, Processing and Deformation Behavior of Metastable High Entropy Alloys

Description: This dissertation presents an assortment of research aimed at understanding the composition-dependence of deformation behavior and the response to thermomechanical processing, to enable efficient design and processing of low stacking fault energy (SFE) high entropy alloy (HEAs). The deformation behavior and SFE of four low SFE HEAs were predicted and experimentally verified using electron microscopy and in-situ neutron diffraction. A new approach of employing a minimization function to refine and improve the accuracy of a semi-empirically derived expression relating composition with SFE is demonstrated. Ultimately, by employing the minimization function, the average difference between experimental and predicted SFE was found to be 2.64 mJ m-2. Benchmarking with currently available approaches suggests that integrating minimization functions can substantially improve prediction accuracy and promote efficient HEA design with expansion of databases. Additionally, in-situ neutron diffraction was used to present the first in-situ measurement of the interspacing between stacking faults (SFs) which were correlated with work hardening behavior. Electron transparent specimens (< ~100 nm thick) were used in order to resolve nanoscale planar faults instead of the thicker sub-sized specimens (on the order of millimeters in thickness) which exhibit the classical stages III work hardening behavior characteristic of low SFE metals and alloys. The present study demonstrates these characteristic dimensions of SFs can be tracked in real-time using neutrons or high-energy x-rays. SFs have also been shown to act as barriers to dislocation motion and thus contribute to strengthening and sustained work hardening during deformation.
This item is restricted from view until June 1, 2023.
Date: May 2021
Creator: Frank, Michael
Partner: UNT Libraries
open access

App Stole My Gayborhood? A Transforming Ethos at the Intersection of Queer Urban Life and Cyberspace(s)

Description: This thesis demonstrates a queer perspective stemming from a qualitative analysis of data gathered in interviews with LGBTQ+ people to analyze a transforming ethos of gayborhoods and queer desires. In particular, the research focuses on the interactive relationship between self-identified lesbian, gay, bisexual, transgender, and queer (LGBTQ+) participants; the cyberspace(s) of LGBTQ+ mobile-dating applications (apps); and tangible urban places. The topic of gayborhood demise and whether such places are worth saving has been debated by scholars and journalists for the last decade. The demise of gayborhoods is often thought to be a symptom of neoliberal urban processes such as gentrification within the context of the post-gay era and broader societal acceptance of homosexuality. This means the question of "if the gayborhood is worth saving" is inherently imbedded in an assumption that homosexuality is not viewed or treated as different or lesser than heterosexuality. In this imagined post-gay era, gayborhoods are declining because the dangers posed to the LGBTQ+ population are purported to no longer exist, so there is no longer a need for designated queer and/or safe places. This research destabilizes the assumptions embedded within the conception of the post-gay era by asking whether the gayborhood meets the needs and desires of contemporary queers. Alternatively, are LGBTQ+ mobile-dating apps part of gayborhood decline, and if so how? Therefore, the question of "if the gayborhood is worth saving" is not about assumed queer acceptance in greater society; rather, the question should be grounded in if the gayborhood fulfills the needs and desires of contemporary queers.
Date: May 2021
Creator: Stucky, Farrell
Partner: UNT Libraries
open access

An Artificial Intelligence-Driven, Model-Based Analysis of System Requirements for Exposing Off-Nominal Behaviors

Description: With the advent of autonomous systems and deep learning systems, safety pertaining to these systems has become a major concern. The existing failure analysis techniques are not enough to thoroughly analyze the safety in these systems. Moreover, because these systems are created to operate in various conditions, they are susceptible to unknown safety issues. Hence, we need mechanisms which can take into account the complexity of operational design domains, identify safety issues other than failures, and expose unknown safety issues. Moreover, existing safety analysis approaches require a lot of effort and time for analysis and do not consider machine learning (ML) safety. To address these limitations, in this dissertation, we discuss an artificial-intelligence driven model-based methodology that aids in identifying unknown safety issues and analyzing ML safety. Our methodology consists of 4 major tasks: 1) automated model generation, 2) automated analysis of component state transition model specification, 3) undesired states analysis, and 4) causal factor analysis. In our methodology we identify unknown safety issues by finding undesired combinations of components' states and environmental entities' states as well as causes resulting in these undesired combinations. In our methodology, we refer to the behaviors that occur because of undesired combinations as off-nominal behaviors (ONBs). To identify undesired combinations and ONBs that aid in exposing unknown safety issues with less effort and time we proposed various approaches for each of the task and performed corresponding empirical studies. We also discussed machine learning safety analysis from the perspective of machine learning engineers as well as system and software safety engineers. The results of studies conducted as part of our research shows that our proposed methodology helps in identifying unknown safety issues effectively. Our results also show that combinatorial methods are effective in reducing effort and time for analysis of off-nominal behaviors without overlooking any …
Date: May 2021
Creator: Madala, Kaushik
Partner: UNT Libraries
open access

At the Junction of Dissemination and Implementation: Facilitating Access to Behavior Analytic Research

Description: Research in scholarly communication is usually limited to the use and dissemination of scientific material by scholars. This excludes the transfer of knowledge from research producers to service providers. Some may argue the primary function of science is to investigate the conditions in the lab so everyday interactions with the environment are more effective and efficient. This is the underlying philosophy of the science of behavior analysis. Comprised of a basic science, an applied science and a philosophy the field of behavior analysis relies on research developments to inform effective practice. Guided by dissemination processes studied in information science, this investigation revealed the content layer in behavior analysis is primarily comprised of journal articles. Ninety four percent of the research artifacts cited in the current content layer are from journal articles. Other dissemination channels used to develop the behavior analytic content layer included scientific magazine articles, oral reports, dissertations and theses, and unpublished manuscripts. The information use environment for professionals in this field is very different than that of the scholars; most professionals do not have access to a university library. Therefore, the research producers are disseminating developments via communication channels some service providers cannot access. This investigation reveals the only dissemination channel that provides continuous access to the content layer is reaching out via informal communication; All other dissemination channels do not provide access to the entire content layer, do not provide the entire scholarly work, and/or include a barrier to access (often an associated cost). This is a concern for the field of behavior analysis as professional recommendations cannot be based on the best available evidence if the evidence is not accessible. This is a concern for the field of information science as the study of scholarly communication should not be limited to scholars alone. The process of …
Date: May 2021
Creator: Bank, Nicole L.
Partner: UNT Libraries

Benefits of Probiotics on Mortality, Growth Performance, Physiological Condition and Gut Histomophology of Juvenile Red Drum (Sciaenops ocellatus)

Description: Results from the present study found for the first time that the use of bacterial strains of Lactobacillus acidophilus, Lactobacillus casei, Bifidobacterium thermophilum, and Enterococcus faecium from the commercial product PrimaLac® had the potential to act as a possible probiotic for juvenile red drum. The addition of PrimaLac® probiotics [whether as a water-soluble probiotic (WSP) or in a probiotic enhanced starter feed (PESF)] reduced mortality (%M), enhanced growth rates (MW, LT, SGR, and DGR), improved feed conversion efficiencies (FCEs), and physical condition factors in the juvenile red drum. Improvement was quantified using external morphological condition indices (MCIs) and blood physiological condition indices (PCIs). Results showed a strong positive relationship between MCIs and PCIs, which suggested that probiotics treated fish were in better health (lower MCIs) with lower fasting blood glucose and lactate levels than control fish. Addition of probiotics also resulted in improved water quality (lower nitrate, nitrite, and ammonia) in the treatment tanks compared to controls. Application of PrimaLac® probiotics on the morphology and histology of three different regions of the intestine (proximal, mid-and distal) improved intestinal length (Li), mass (Mi), and digesta mass (Md). In 5μm histological sections examined for differences among treatments (probiotics vs. controls), five variables within each intestinal region were also quantified: (i) perimeter ratio (PR) between the internal perimeter (IP) of the intestinal lumen and the external perimeter (EP) of the intestine where, PR = IP/EP; (ii) width of lamina propria (wLP); (iii) thickness of the muscle layer (tM); (iv) the number of goblet cells per segments (GC); and (v) height of enterocytes (hE). Overall, Li and Mi significantly increased by 13.4 ± 1.2% and 11.8 ± 0.9%, respectively, and Md decreased by 33.2 ± 1.21% compared to controls. Significant increases in microvilli heights, PR (by 21.3 ± 1.2%), tM (by 18.4 ± 0.9%), …
This item is restricted from view until December 1, 2021.
Date: May 2021
Creator: Busby, Wren Adell
Partner: UNT Libraries
open access

Breeding Ecology and Migratory Connectivity of Passerines in the World's Southernmost Forests

Description: In the extensive and remote sub-Antarctic forests of South America, birds are the dominant terrestrial vertebrates. Despite considerable efforts to understand the ecology of birds breeding in these forests, our current knowledge for many species is still incomplete. During three breeding seasons (2014 – 2017), I studied the breeding ecology of the five most abundant open-cup forest-dwelling passerines in the sub-Antarctic forest of Navarino Island, Chile (55°04′S, 67°40′W). There were differences in some of the breeding strategies used by birds breeding on Navarino Island versus conspecific populations breeding at lower latitudes. Milvago chimango was the main nest predator of open-cup nesting forest passerines, and the main cause of nest failure. In addition, I found that species built their nests in sites with higher density and taller understory; however, these two factors decreased their nest survival. This mismatch could be due to a change in depredation risk on Navarino Island, and thus, passerines breeding there may be in an ecological trap. In addition, using light-level geolocators, I determined that the migratory connectivity of Elaenia albiceps is weak as a result of the large spatial spread of individuals on the wintering ground, and that the distances among individuals on the breeding grounds are not maintained in the wintering grounds. My study opens further questions about the mechanisms driving differences in breeding strategies among populations. In addition, further research is needed to assess hypotheses that could explain the mismatch between nest-site selection and nest survival and to understand what drives elaenias' movements, not only during winter but throughout their annual cycle.
Date: May 2021
Creator: Jara Millar, Rocio Fernanda
Partner: UNT Libraries
open access

Change, Longing, and Frustration in Djent-Style Progressive Metal

Description: The progressive metal style "djent" emerged in the mid-to-late 2000s with bands that modeled their use of extended range instruments and complex rhythmic cycles after that of Swedish metal band Meshuggah. The addition of a new vocabulary of melody and harmony by bands such as Periphery, Tesseract, and Animals as Leaders has come to define djent in a new way and provided fruitful ground for voice-leading and metrical analysis. In this dissertation, I approach analysis in two steps. The first step is the production of detailed transcriptions of four djent songs. The process of transcription has allowed for the development of Transcription Preference Rules, modeled after Lerdahl and Jackendoff's preference rule approach in their Generative Theory of Tonal Music. The Transcription Preference Rules account for the selection of key signatures, time signatures, and other features of the scores that may affect analysis. Second, using these scores, I examine the connection between the textual topic of change and the voice-leading and metrical structures in Periphery's "Insomnia" and Tesseract's "Of Matter." I show how this topic is reflected by techniques such as change melodic direction, multidimensional metrical dissonance, and auxiliary cadential events. Finally, I apply voice-leading and metrical analysis to Animals as Leaders's "Tempting Time" and Mute the Saint's "Sound of Scars" in order to show what these analytical techniques reveal about instrumental djent pieces. I show how shifts in meter in "Tempting Time" can be represented cyclically. I conclude by showing how the interaction of metal and North Indian Classical techniques produces a unique representation of Mute the Saint's topic of longing and frustration in "Sound of Scars."
Date: May 2021
Creator: Sallings, Patrick N
Partner: UNT Libraries
open access

Chronicle of the Online Culture Wars: Reactionary Affective Publics in Neoliberal Postmodernity

Description: The Age of Trump witnessed the visible rise of intense culture wars and polarization in the United States. While culture wars are not new phenomena, the current iteration has digital media acting as new discursive structures and mediating battlegrounds for all sides of the cultural conflict. This project chronicles these online culture wars, demonstrating how within a neoliberal and postmodern socio-cultural condition, the rise of ambivalent, profit-driven digital technologies and platforms structure affect and mediate newly networked neo-reactionary populist (sub)cultural ideologies and discourses. The resulting online ecosystems afforded the digital formations of obscure reactionary subcultures (trolls, antifeminists, the alt-right, etc.) with particular personalized and affectively driven memetic communicative logics. These reactionary affective publics eventually began converging under perceived common ideological and social interests as online actions and reactionary discursive (re)formations and (re)networkings were catalyzed by (sub/cross)cultural conflicts and moments of sentimental activation. This led to the emergence of affectively charged and informally networked reactionary publics which began spilling out into the offline world alongside Trump's ascendancy to the White House. The increasing progressive reactions during the Trump Era also faced limitations in combatting reactionary politics due to structural dynamics of digital media and the larger culture war filtering of politics. The overall macro function of these new online culture wars is the bipartisan obfuscation and undermining of a collectivist and materialist reality and engagement with politics in the favor of a more personalized, symbolic and affective engagement that is indicative of the neoliberalized postmodern era.
Date: May 2021
Creator: Montalvo, David Rafael
Partner: UNT Libraries
open access

Client Narcissism and the Decision to Switch Tax Professionals

Description: Contentious interactions may arise between a tax professional and client upon a disagreement over a tax position. In an increasingly competitive tax return preparation market, these contentious interactions represent a significant threat to tax practitioners' client satisfaction and retention objectives. I conduct an experiment in which I examine the effect of three factors on tax clients' (1) likelihood to accept the advice of the tax accountant and (2) likelihood to switch tax accountants upon receiving professional advice counter to their preferred tax position. The three factors are: (1) clients' antagonistic narcissism; (2) clients' relationship with the accountant; and (3) how the advice is framed by the tax accountant. The results are based on a sample of 93 taxpayers. First, this study examines how clients' measured levels of narcissistic antagonism (hereafter, antagonism) impacts their reaction to "being told no" by their tax professional. Results indicate that upon the receipt of advice contrary to their preferences, highly antagonistic clients are more likely to (1) engage in a contentious interaction with their professional and (2) switch to a new tax professional. Supplemental path analyses document that individuals with high levels of antagonism cognitively react to instances of "being told no" by simultaneously devaluing their professionals' credibility and role as a client advocate, leading to these aggressive behaviors. This study also examines how the social closeness of the professional-client relationship influences the argue and switch decisions. Multivariate analysis indicates that social closeness is significantly related to the argue and switch decision. However, univariate results do not show significant relationship between social closeness and each of the decisions individually. That is, I find partial support for the professional publications and AICPA recommendations that tax practitioners should develop personal relationships with their clients to improve client satisfaction and likelihood of retention. Clients are marginally more likely …
Date: May 2021
Creator: Kaszak, Steven E
Partner: UNT Libraries
Back to Top of Screen