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New reactions of diazene and related species for modelling combustion of amine fuels (open access)

New reactions of diazene and related species for modelling combustion of amine fuels

Article discusses how potential energy surfaces for reactions involving N2H2 isomers of diazene (diimide) have been explored using density functional theory, with energies based on coupled-cluster theory. A focus is on processes that create or consume these species, and isomerization between the E (trans) and Z (cis) forms of HNNH. This is the accepted manuscript version of the published article.
Date: September 24, 2021
Creator: Marshall, Paul; Rawling, George R. & Glarborg, Peter
Object Type: Article
System: The UNT Digital Library
Examining physical activity and quality of life in adults with autism spectrum disorder and intellectual disability (open access)

Examining physical activity and quality of life in adults with autism spectrum disorder and intellectual disability

Article discusses how quality of life and physical activity relate to each other in adults with autism and intellectual disabilities. The authors use Fitbit activity trackers to find connections between physical activity and quality of life of their sample group of autistic adults.
Date: September 13, 2021
Creator: Tomaszewski, Brianne; Savage, Melissa N. & Hume, Kara
Object Type: Article
System: The UNT Digital Library
Descriptive Complexity in Cantor Series (open access)

Descriptive Complexity in Cantor Series

Article discusses how a Cantor series expansion for a real number x with respect to a basic sequence Q=(q), where qi≥2, is a generalization of the base b expansion to an infinite sequence of bases. The authors show that for any basic sequence the set of distribution normal numbers is Π03-complete, and if Q is 1-divergent then the sets of normal and ratio normal numbers are Π03-complete.
Date: September 27, 2021
Creator: Airey, Dylan; Jackson, Steve & Mance, Bill
Object Type: Article
System: The UNT Digital Library

Defining Data Literacy: An Empirical Study of Data Literacy Dimension

Poster on an analysis of publications from 2002-2021 on data literacy to identify relevant topics and trends. This is a part of preliminary work done to support a proposal for an Institute of Museum and Library Services (IMLS) grant. It was presented at the 2021 Association for Library and Information Science Education (ALISE) Annual Conference held virtually September 20-24, 2021.
Date: September 21, 2021
Creator: Kim, Jeonghyun; Hong, Lingzi & Evans, Sarah
Object Type: Poster
System: The UNT Digital Library
A Soy Protein-Based Composite Film with a Hierarchical Structure Inspired by Nacre (open access)

A Soy Protein-Based Composite Film with a Hierarchical Structure Inspired by Nacre

This article develops a strategy to fabricate a novel bio-based film with excellent toughness and high strength.
Date: July 30, 2021
Creator: Xu, Yecheng; Xu, Chaojie; Chen, Mingsong; Li, Jianzhang; Zeng, Ling; Luo, Jing et al.
Object Type: Article
System: The UNT Digital Library
Enhancement of COVID-19 Diagnosis using Machine Learning and Texture Analyses of Lung Imaging (open access)

Enhancement of COVID-19 Diagnosis using Machine Learning and Texture Analyses of Lung Imaging

Article proposing CoviSegNet, an enhanced U-Net model to segment ground-glass opacities and consolidations in CT scans of Covid-19 positive patients. The performance of CoviSegNet was evaluated on three public CT datasets. The experimental results show that the proposed CoviSegNet is highly promising.
Date: 2021-09-13/2021-09-15
Creator: Oh, JungHwan & Mittal, Bhuvan
Object Type: Article
System: The UNT Digital Library
Making Music Accessible in the UNT Digital Libraries (open access)

Making Music Accessible in the UNT Digital Libraries

This report documents the "Making Music Accessible in the UNT Digital Libraries" project funded by the Dean's Innovation Grant. The final report briefly describes the project purpose, activities, budget, outcomes, best practices, and program continuity.
Date: September 21, 2021
Creator: Hicks, William & Cleveland, Susannah, 1972-
Object Type: Report
System: The UNT Digital Library
GlobeChain: An Interoperable Blockchain for Global Sharing of Healthcare Data - A COVID-19 Perspective (open access)

GlobeChain: An Interoperable Blockchain for Global Sharing of Healthcare Data - A COVID-19 Perspective

Article introducing a Blockchain-based medical data-sharing framework (called GlobeChain) to overcome the technical challenges to handle outbreak records. The challenges that might arise due to the proposed Blockchain-based framework are also presented as a future direction that grabs the proposal's effectiveness. This is the accepted manuscript version of the article.
Date: September 1, 2021
Creator: Biswas, Sujit; Li, Fan; Latif, Zohaib; Sharif, Kashif; Bairagi, Anupam K. & Mohanty, Saraju P.
Object Type: Article
System: The UNT Digital Library

Expanding Access to Oklahoma Newspapers: The Gateway to Oklahoma History

Presentation highlighting the partnership between the University of North Texas Libraries' Digital Library and the Oklahoma Historical Society to digitize Oklahoma newspapers and make them accessible online through the Gateway to Oklahoma History. It was presented at the 2021 National Digital Newspaper Program (NDNP) Awardee Conference held virtually by the Library of Congress on September 9 and 13-16, 2021.
Date: September 14, 2021
Creator: Fisher, Sarah Lynn & Biller, Sarah
Object Type: Presentation
System: The UNT Digital Library
Confronting Russia: How Do the Citizens of Countries of the Near Abroad Perceive Their State’s Role? (open access)

Confronting Russia: How Do the Citizens of Countries of the Near Abroad Perceive Their State’s Role?

Article providing an explanation as to why citizens of some states differ from others in their role conceptions, especially those states that were formerly part of the Soviet Union. The authors offer a novel theoretical explanation that accounts for variation in roles, based on each country’s historic relationship with Russia, its emerging relationship with the West and China, and domestic ethnopolitical conditions.
Date: September 1, 2021
Creator: Ishiyama, John T. & Breuning, Marijke
Object Type: Article
System: The UNT Digital Library
Who Is Purged? Determinants of Elite Purges in North Korea (open access)

Who Is Purged? Determinants of Elite Purges in North Korea

This article argues that elite purges in consolidated dictatorships have a different purpose and logic. Dictators, who have consolidated their position, seek to maximize the efficiency of rule by making the elite obedient through purges. For this purpose, dictators carefully select the purge target by considering various factors. To test this theory, the article examines the pattern of elite purges in North Korea based on an original individual-level dataset, which contains the personal background of 367 North Korean elites and their purge records between 1948 and 2019. Findings suggest that coup-proofing is not the only purpose of elite purges but that ensuring the leader’s political superiority is another purpose of elite purges in consolidated dictatorships.
Date: September 1, 2021
Creator: Kim, Taekbin
Object Type: Article
System: The UNT Digital Library
Thermally Tunable Acoustic Beam Splitter Based on Poly(vinyl alcohol) Poly(N-isopropylacrylamide) Hydrogel (open access)

Thermally Tunable Acoustic Beam Splitter Based on Poly(vinyl alcohol) Poly(N-isopropylacrylamide) Hydrogel

Article demonstrating a thermally tunable acoustic beam splitter using a poly(vinyl alcohol) poly(N-isopropylacrylamide) hydrogel (PVA-pNIPAM). The nature of PVA-pNIPAM hydrogel offers exceptional temperature-dependent physical properties due to its phase transition around its lower critical solution temperature. The acoustic impedance of the hydrogel can be tuned below, above, or matched to that of water by changing the environmental temperature. An acoustic wave propagating in water can be split into transmitted and reflected components by the PVA-pNIPAM hydrogel slab on varying its angle of incidence. The intensity ratio between the reflected and the transmitted componence can be adjusted by tuning the temperature of the medium. The acoustic beam can be entirely reflected at a temperature corresponding to the matched impedance between hydrogel and water. The beam-splitting behavior was observed for acoustic waves from both a monochromatic wave and broadband pulse source. In addition, the phase of beam split pulses can be reversed by selecting the hydrogel’s operating temperature.
Date: September 13, 2021
Creator: Jin, Yuqi; Zhou, Mi; Choi, Tae-Youl & Neogi, Arup
Object Type: Article
System: The UNT Digital Library
Re-engineering Plant Phenylpropanoid Metabolism With the Aid of Synthetic Biosensors (open access)

Re-engineering Plant Phenylpropanoid Metabolism With the Aid of Synthetic Biosensors

Article that provides a brief overview of current research on synthetic biology and metabolic engineering approaches to control phenylpropanoid synthesis and phenylpropanoid-related biosensors, advocating for the use of biosensors and genetic circuits as a step forward in plant synthetic biology to develop autonomously-controlled phenylpropanoid-producing plant biofactories.
Date: September 16, 2021
Creator: Ferreira, Savio S. & Antunes, Mauricio S.
Object Type: Article
System: The UNT Digital Library
Using Gaze Tracking as a Research Tool in the Deaf Health Literacy and Access to Health Information Project: Protocol for a Multisite Mixed Methods Study and Preliminary Results (open access)

Using Gaze Tracking as a Research Tool in the Deaf Health Literacy and Access to Health Information Project: Protocol for a Multisite Mixed Methods Study and Preliminary Results

This article used gaze-tracking technology to understand the navigation and use of web-based health information by deaf adults who communicate with sign language and by hearing adults. The findings of this study show that incorporating gaze-tracking technology offers beneficial avenues for better understanding how individuals interact with health information.
Date: September 7, 2021
Creator: Champlin, Sara; Cuculick, Jessica; Hauser, Peter C.; Wyse, Kelley & McKee, Michael M.
Object Type: Article
System: The UNT Digital Library
Natlog: a Lightweight Logic Programming Language with a Neuro-symbolic Touch (open access)

Natlog: a Lightweight Logic Programming Language with a Neuro-symbolic Touch

Article that introduces Natlog, a lightweight Logic Programming language, sharing Prolog's unification-driven execution model, but with a simplified syntax and semantics. The authors' proof-of-concept Natlog implementation is tightly embedded in the Python-based deep-learning ecosystem with focus on content-driven indexing of ground term datasets. As an overriding of the authors symbolic indexing algorithm, the same function can be delegated to a neural network, serving ground facts to Natlog's resolution engine. The open-source implementation is available as a Python package at t https://pypi.org/project/natlog/.
Date: September 17, 2021
Creator: Tarau, Paul
Object Type: Article
System: The UNT Digital Library
Teaching and Learning with Technology During the COVID-19 Pandemic: Highlighting the Need for Micro-Meso-Macro Alignments (open access)

Teaching and Learning with Technology During the COVID-19 Pandemic: Highlighting the Need for Micro-Meso-Macro Alignments

This article covers the challenges brought about for teachers and learners from transitioning to online education due to the COVID-19 pandemic. The authors reflect on these challenges based on discussions at EDUsummIT2019 in Quebec about the theme “Learners and learning contexts: New alignments for the digital age." Informed by theoretical conceptualization and empirical evidence the authors identify micro-meso-macro alignments that need to be in place to move education into the digital age: alignments for quality learning contexts, alignments in support for teachers, and alignments through partnerships.
Date: September 20, 2021
Creator: Voogt, Joke & Knezek, Gerald
Object Type: Article
System: The UNT Digital Library
Photonic Band Gaps and Resonance Modes in 2D Twisted Moiré Photonic Crystal (open access)

Photonic Band Gaps and Resonance Modes in 2D Twisted Moiré Photonic Crystal

Article studying 2D twisted moiré photonic crystals without physical rotation and simulating their photonic band gaps in photonic crystals formed at different twisted angles, different gradient levels, and different dielectric filling factors.
Date: September 23, 2021
Creator: Alnasser, Khadijah; Kamau, Steve; Hurley, Noah; Cui, Jingbiao & Lin, Yuankun
Object Type: Article
System: The UNT Digital Library
Bioengineering Systems for Modulating Notch Signaling in Cardiovascular Development, Disease, and Regeneration (open access)

Bioengineering Systems for Modulating Notch Signaling in Cardiovascular Development, Disease, and Regeneration

This article is a review summarizing the significant roles of Notch signaling in individual cardiac cell types. It covers the bioengineering systems of microfluidics, hydrogel, spheroid, and 3D bioprinting and provides insights into ancillary supports of bioengineering systems, varied types of cardiovascular cells, and advanced characterization approaches in further refining Notch signaling in cardiovascular development, disease, and regeneration.
Date: September 30, 2021
Creator: Huerta Gomez, Angello; Joshi, Sanika; Yang, Yong; Tune, Johnathan D. & Zhao, Ming-Tao
Object Type: Article
System: The UNT Digital Library
Excited State Charge Separation in an Azobenzene-Bridged Perylenediimide Dimer – Effect of Photochemical Trans-Cis Isomerization (open access)

Excited State Charge Separation in an Azobenzene-Bridged Perylenediimide Dimer – Effect of Photochemical Trans-Cis Isomerization

Article demonstrating photoinduced charge transfer and separation events in a newly synthesized azobenzene-bridged perylenediimide-dimer (PDI-dimer). Results offer key insights on the role of the azobenzene bridge and the dimer geometry in governing the excited state charge transfer and separation in symmetrically linked PDI dimer.
Date: September 20, 2021
Creator: Zink-Lorre, Nathalie; Seetharaman, Sairaman; Gutiérrez-Moreno, David; Fernández-Lázaro, Fernando; Karr, Paul A. & D'Souza, Francis
Object Type: Article
System: The UNT Digital Library
A Miniature Permanent Magnet Assembly with Localized and Uniform Field with an Application to Optical Pumping of Helium (open access)

A Miniature Permanent Magnet Assembly with Localized and Uniform Field with an Application to Optical Pumping of Helium

Article using simulations and experimental measurements to design, build, and test a compact and uniform magnetic field source and then apply it to the optical pumping of atomic helium.
Date: September 24, 2021
Creator: Cameron, Garnet; Cuevas, Jonathan; Pound, Jeffrey Jr. & Shiner, David
Object Type: Article
System: The UNT Digital Library

Leveraging Digital Library Infrastructure to Build a Language Archive

Presentation describing the ongoing CoRSAL (Computational Resource for South Asian Languages) project, including background on the UNT Digital Library infrastructure and metadata schema, specific fields that have presented issues or areas of discussion for language data records (language, creator/contributor, and relation), and final conclusions about the collaboration so far.
Date: September 30, 2021
Creator: Phillips, Mark Edward & Tarver, Hannah
Object Type: Presentation
System: The UNT Digital Library
Measuring the impact of suspending Umrah, a global mass gathering in Saudi Arabia on the COVID‑19 pandemic (open access)

Measuring the impact of suspending Umrah, a global mass gathering in Saudi Arabia on the COVID‑19 pandemic

This article uses a stratified SEIR epidemic model to evaluate the impact of Umrah, a global Muslim pilgrimage to Mecca, on the spread of the COVID-19 pandemic during the month of Ramadan, the peak of the Umrah season. The analyses provide insights into the effects of global mass gatherings on the progression of the COVID-19 pandemic locally and globally.
Date: September 6, 2021
Creator: Alshammari, Sultanah M.; Almutiry, Waleed K.; Gwalani, Harsha; Algarni, Saeed M. & Saeedi, Kawther
Object Type: Article
System: The UNT Digital Library
Voter Access & Election Integrity: The 2021 Constitution Day Discussion [Flyer] (open access)

Voter Access & Election Integrity: The 2021 Constitution Day Discussion [Flyer]

Flyer for UNT's Constitution Day event for 2021 which highlights the calls for election reform being renewed around the country. The event was a moderated panel presentation with speakers Jan (Janice) Johnson, Co-President of the League of Women Voters of Denton; Linnie McAdams, Co-President of the League of Women Voters of Denton; and Dr. Matthew Wilson, Associate Professor of Political Science, Southern Methodist University; and moderated by Dr. Rafe Major, University of North Texas.
Date: September 16, 2021
Creator: Borck, Catherine A.; King, Kimi L.; Henson, Brea; Sittel, Robbie & Sylve, Joshua
Object Type: Pamphlet
System: The UNT Digital Library
Voter Access & Election Integrity: The 2021 Constitution Day Discussion [Video] captions transcript

Voter Access & Election Integrity: The 2021 Constitution Day Discussion [Video]

Video recording of UNT's Constitution Day event for 2021 which highlights the calls for election reform being renewed around the country. The event was a moderated panel presentation with speakers Jan (Janice) Johnson, Co-President of the League of Women Voters of Denton; Linnie McAdams, Co-President of the League of Women Voters of Denton; and Dr. Matthew Wilson, Associate Professor of Political Science, Southern Methodist University; and moderated by Dr. Rafe Major, University of North Texas.
Date: September 16, 2021
Creator: Johnson, Janice; McAdams, Linnie & Wilson, Matthew
Object Type: Video
System: The UNT Digital Library