33 Matching Results

Results open in a new window/tab.

Simulation of the formation of antihydrogen via magnetobound positronium (open access)

Simulation of the formation of antihydrogen via magnetobound positronium

This article simulates Antihydrogen formation involving magnetobound positronium by computing classical trajectories.
Date: September 9, 2021
Creator: Aguirre, F. F. & Ordonez, Carlos A.
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
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
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
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
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
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
Advanced modeling of materials with PAOFLOW 2.0: New features and software design (open access)

Advanced modeling of materials with PAOFLOW 2.0: New features and software design

This article describes the recent re-design of the code and the new features and improvements in performance of PAOFLOW, a software tool that constructs tight-binding Hamiltonians from self-consistent electronic wavefunctions by projecting onto a set of atomic orbitals.
Date: September 2, 2021
Creator: Cesaroli, Frank T.; Supka, Andrew; Jayaraj, Anooja; Costa, Marcio; Siloi, Ilaria; Sławińska, Jagoda et al.
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
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

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
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
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
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
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
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

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
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
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
Influence of high heating rates on evolution of oxides on directed laser energy additively fabricated IN718 (open access)

Influence of high heating rates on evolution of oxides on directed laser energy additively fabricated IN718

Article studying material response under dynamic short duration-high temperature oxidation.
Date: September 1, 2021
Creator: Mazumder, Sangram
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

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
Estimating landscape structure effects on pollination for management of agricultural landscapes (open access)

Estimating landscape structure effects on pollination for management of agricultural landscapes

Article estimating the effects of different scenarios of forest fragmentation to find an optimized pattern of forest patches for increasing pollination in an agricultural landscape. The authors use simulated agricultural landscapes and landscape metrics to estimate the relationship between pollination and landscape structure.
Date: September 7, 2021
Creator: Rahimi, Ehsan; Barghjelveh, Shahindokht & Dong, Pinliang
Object Type: Article
System: The UNT Digital Library
Developmental programming of DNA methylation and gene expression patterns is associated with extreme cardiovascular tolerance to anoxia in the common snapping turtle (open access)

Developmental programming of DNA methylation and gene expression patterns is associated with extreme cardiovascular tolerance to anoxia in the common snapping turtle

This article explores DNA methylation's role in the regulation of gene expression in reptiles. Results show that embryonic hypoxia programs DNA methylation and gene expression patterns and that these changes are associated with enhanced cardiac anoxia tolerance in snapping turtles later in life.
Date: September 6, 2021
Creator: Ruhr, Ilan; Bierstedt, Jacob; Rhen, Turk; Das, Debojyoti; Singh, Sunil Kumar; Miller, Solielle et al.
Object Type: Article
System: The UNT Digital Library