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Probing High-Temperature Amine Chemistry: Is the Reaction NH3 + NH2 ⇄ N2H3 + H2 Important? (open access)

Probing High-Temperature Amine Chemistry: Is the Reaction NH3 + NH2 ⇄ N2H3 + H2 Important?

Article describes how the reaction NH3 + NH2 ⇄ N2H3 + H2 (R1) has been identified as a key step to explain experimental results for pyrolysis and oxidation of ammonia. In the present work, the reaction was studied by ab initio theory and by reinterpretation of experimental data.
Date: March 14, 2023
Creator: Marshall, Paul & Glarborg, Peter
Object Type: Article
System: The UNT Digital Library
Shared metadata for data-centric materials science (open access)

Shared metadata for data-centric materials science

Article describes how the expansive production of data in materials science, their widespread sharing and repurposing requires educated support and stewardship. The authors mainly focus on computational materials-science data and propose a constructive approach for the FAIRification of the (meta)data related to ground-state and excited-states calculations, potential-energy sampling, and generalized workflows.
Date: September 14, 2023
Creator: Ghiringhelli, Luca M.; Baldauf, Carsten; Bereau, Tristan; Brockhauser, Sandor; Carbogno, Chistian; Chamanara, Javad et al.
Object Type: Article
System: The UNT Digital Library
Accessibility and Mechanical Stability of Nanoporous Zinc Oxide and Aluminum Oxide Coatings Synthesized via Infiltration of Polymer Templates (open access)

Accessibility and Mechanical Stability of Nanoporous Zinc Oxide and Aluminum Oxide Coatings Synthesized via Infiltration of Polymer Templates

Article describes how the conformal nanoporous inorganic coatings with accessible pores that are stable under applied thermal and mechanical stresses represent an important class of materials used in the design of sensors, optical coatings, and biomedical systems. Authors synthesize porous AlOx and ZnO coatings by the sequential infiltration synthesis (SIS) of two types of polymers that enable the design of porous conformal coatings.
Date: October 14, 2023
Creator: Omotosho, Khalil D.; Lyon, Zachary; Shevchenko, Elena V. & Berman, Diana
Object Type: Article
System: The UNT Digital Library
An Optimized Control System for the Independent Control of the Inputs of the Doherty Power Amplifier (open access)

An Optimized Control System for the Independent Control of the Inputs of the Doherty Power Amplifier

Article describes how this study presents a systematic design of an optimized drive signal control system for 2.5 GHz Doherty power amplifiers (DPAs). In this manuscript, the authors analyzed and compared the PAE of the DPA and parallel-connected PA for diverse input signals generated using a designed optimized control system
Date: November 14, 2023
Creator: Sah, Pallav Kumar; Poulton, Matthew; Luyen, Hung & Mahbub, Ifana
Object Type: Article
System: The UNT Digital Library
Ignition delay times of NH3/DME blends at high pressure and low DME fraction: RCM experiments and simulations (open access)

Ignition delay times of NH3/DME blends at high pressure and low DME fraction: RCM experiments and simulations

Authors of the article describe how autoignition delay times of ammonia/dimethyl ether (NH3/DME) mixtures were measured in a rapid compression machine with DME fractions of 0, 2 and 5 and 100% in the fuel. Analysis of the mechanism indicates that this 'early DME oxidation' generates reactive species that initiate the oxidation of ammonia, which in turn begins heat release that raises the temperature and accelerates the oxidation process towards ignition. This is the accepted manuscript version of the published article.
Date: January 14, 2021
Creator: Dai, Liming; Glarborg, Peter; Gersen, Sander; Marshall, Paul; Mokhov, Anatoli & Levinsky, Howard
Object Type: Article
System: The UNT Digital Library
Scholars Experiencing Epistemic Injustice Due to Management of Scholarly Outputs (open access)

Scholars Experiencing Epistemic Injustice Due to Management of Scholarly Outputs

Article describes how scholars from regions outside of high-income countries experience additional barriers as active consumers, producers, and sharers of scholarly outputs. This study will examine these barriers through a lens based on critical theories, specifically those focused on epistemic injustice.
Date: October 14, 2022
Creator: Alemneh, Daniel Gelaw & Ford, Angela
Object Type: Article
System: The UNT Digital Library
Evaluation of the Vibration Signal during Milling Vertical Thin-Walled Structures from Aerospace Materials (open access)

Evaluation of the Vibration Signal during Milling Vertical Thin-Walled Structures from Aerospace Materials

Article describes how the main functions of thin-walled structures are to reduce the weight of the finished product and to increase the rigidity of the structure. The authors compared the vibration signal for different approaches to machining thin walled-components with vertical walls made of Ti6AI4V titanium alloy and Inconel 625 nickel alloy.
Date: July 14, 2023
Creator: Kurpiel, Szymon; Zagrórski, Krzysztof; Skryzpkowski, Krzysztof & Brostow, Witold, 1934-
Object Type: Article
System: The UNT Digital Library
It's a Shit Show, and It's Fine: Symbolic Nonviolence Practices in Higher Education in 2020 (open access)

It's a Shit Show, and It's Fine: Symbolic Nonviolence Practices in Higher Education in 2020

Article describes how, through in-depth interviews with 22 faculty who taught during COVID in 2020, this study examines symbolic violence and symbolic nonviolence in higher education. The concept, symbolic nonviolence, was created, which is the intentional and systemic practice of recognizing and absorbing symbolic violence to transform the habitus.
Date: July 14, 2023
Creator: Evans, Aubree
Object Type: Article
System: The UNT Digital Library
2023 UNT OA Symposium: Opening Remarks captions transcript

2023 UNT OA Symposium: Opening Remarks

Video recording of the opening remarks for the UNT Open Access Symposium held virtually on April 14, 2023.
Date: April 14, 2023
Creator: Martin, John Edward & Antes, Isabelle
Object Type: Video
System: The UNT Digital Library
2023 UNT OA Symposium: OER and Open Textbook Projects at UNT captions transcript

2023 UNT OA Symposium: OER and Open Textbook Projects at UNT

Video recording of the session, "OER and Open Textbook Projects at UNT," for the UNT Open Access Symposium held virtually on April 14, 2023. This session is a panel of UNT faculty that discuss their university-sponsored OER and open textbook projects. They consider how these projects were conceived, created, and implemented in the classroom and what the outcomes, benefits, and drawbacks might be.
Date: April 14, 2023
Creator: Martin, John Edward; Connors, Priscilla L.; Ding, Junhua; Hawamdeh, Suliman M.; Ryan, Sarah & Webb, Jae
Object Type: Video
System: The UNT Digital Library
2023 UNT OA Symposium: Recent Texas Legislation Affecting Course Materials and OER captions transcript

2023 UNT OA Symposium: Recent Texas Legislation Affecting Course Materials and OER

Video recording of the session, "Recent Texas Legislation Affecting Course Materials and OER," for the UNT Open Access Symposium held virtually on April 14, 2023. This session looks at two recent pieces of legislation-- Texas SB 810 (OER course markings) and HB 1027 (disclosure of course material information)--and their implications for Texas institutions of higher education.
Date: April 14, 2023
Creator: Ivie, DeeAnn; McClean, Jessica & Towery, Stephanie
Object Type: Video
System: The UNT Digital Library
2023 UNT OA Symposium: Federal Initiatives Supporting Open Science and Equitable Access captions transcript

2023 UNT OA Symposium: Federal Initiatives Supporting Open Science and Equitable Access

Video recording of the session, "Federal Initiatives Supporting Open Science and Equitable Access," for the UNT Open Access Symposium held virtually on April 14, 2023. This session focuses on recent federal initiatives supporting Open Science and public access to federally-funded research, including those outlined in the 2022 Office of Science and Technology Policy (OSTP) memo, Ensuring Free, Immediate, and Equitable Access to Federally Funded Research.
Date: April 14, 2023
Creator: Steen-James, Katie & Waugh, Laura
Object Type: Video
System: The UNT Digital Library
Quantum algorithm for electronic band structures with local tight-binding orbitals (open access)

Quantum algorithm for electronic band structures with local tight-binding orbitals

Article says that while the main thrust of quantum computing research in materials science is to accurately measure the classically intractable electron correlation effects due to Coulomb repulsion, designing optimal quantum algorithms for simpler problems with well-understood solutions is a useful tactic to advance our quantum “toolbox”. In this paper, the authors adopt a direct space approach, using a novel hybrid first/second-quantized qubit mapping which allows us to construct a single Hamiltonian, and a single cost-function, suitable for solving the entire electronic band structure.
Date: June 14, 2022
Creator: Sherbert, Kyle; Jayaraj, Anooja & Buongiorno Nardelli, Marco
Object Type: Article
System: The UNT Digital Library
A role for ascorbate conjugates of (+)-catechin in proanthocyanidin polymerization (open access)

A role for ascorbate conjugates of (+)-catechin in proanthocyanidin polymerization

Article describes how both biochemically and genetically, that ascorbate (AsA) is an alternative “starter unit” to flavan-3-ol monomers for leucocyanidin-derived (+)-catechin subunit extension in the Arabidopsis thaliana anthocyanidin synthase (ans) mutant. The authors' findings advance the knowledge of (+)-catechin-type PA extension and indicate that PA oligomerization does not necessarily proceed by sequential addition of a single extension unit. AsA-[C]n defines a new type of PA intermediate which we term “sub-PAs”.
Date: June 14, 2022
Creator: Yu, Keji; Dixon, R. A. & Duan, Changquing
Object Type: Article
System: The UNT Digital Library
Complete Genome Sequences of the Novel Cluster BP Phages Infecting Streptomyces sanglieri, AxeJC, Cumberbatch, Eastland, Eklok, HFrancette, Ignacio, Piccadilly, and Vondra (open access)

Complete Genome Sequences of the Novel Cluster BP Phages Infecting Streptomyces sanglieri, AxeJC, Cumberbatch, Eastland, Eklok, HFrancette, Ignacio, Piccadilly, and Vondra

Article describes the Streptomyces sanglieri bacteriophages AxeJC, Cumberbatch, Eastland,Eklok, HFrancette, Ignacio, Piccadilly, and Vondra form a novel actinobacteriophage cluster,BP. These siphoviruses have circularly permuted genomes with an average size of 37,700 bp and a GC content of 71%. Each genome contains approximately 58 protein-coding genes, with no tRNAs.
Date: September 14, 2022
Creator: Nath, Sreemoye; Sulaiman, Ahmad; Maneekul, Jindanuch; Bhuiyan, Swapan; Layton, Sonya R.; Menchaca, Carolina et al.
Object Type: Article
System: The UNT Digital Library
Experimental Validation of Diffraction Lithography for Fabrication of Solid Microneedles (open access)

Experimental Validation of Diffraction Lithography for Fabrication of Solid Microneedles

Article states that microneedles are highly sought after for medicinal and cosmetic applications. However, the current manufacturing process for microneedles remains complicated, hindering its applicability to a broader variety of applications. This experimental study enables the shapes and mechanical properties of the microneedles to be predicted in advance for mass production and wide practical use for biomedical or cosmetic applications.
Date: December 14, 2022
Creator: Tan, Jun Ying; Li, Yuanki; Chamani, Faraz; Tharzeen, Aabila; Prakash, Punit; Natarajan, Balasubramaniam et al.
Object Type: Article
System: The UNT Digital Library
Unusual Mathematical Approaches Untangle Nervous Dynamics (open access)

Unusual Mathematical Approaches Untangle Nervous Dynamics

Article reports that the massive amount of available neurodata suggests the existence of a mathematical backbone underlying neuronal oscillatory activities. The authors assert that the Monge’s theorem might contribute to our visual ability of depth perception and the brain connectome can be tackled in terms of tunnelling nanotubes.
Date: October 14, 2022
Creator: Tozzi, Arturo & Mariniello, Lucio
Object Type: Article
System: The UNT Digital Library
Effect of N-Methyl-pyrrolidone (NMP) on the Equilibrium Solubility of Meloxicam in Aqueous Media: Correlation, Dissolution Thermodynamics, and Preferential Solvation (open access)

Effect of N-Methyl-pyrrolidone (NMP) on the Equilibrium Solubility of Meloxicam in Aqueous Media: Correlation, Dissolution Thermodynamics, and Preferential Solvation

Article describes a study of the drug Meloxicam in N-methyl-pyrrolidone (NMP)–aqueous mixtures at several temperatures to expand the solubility database about pharmaceutical compounds in aqueous–mixed solvents. Meloxicam is preferentially hydrated in water-rich mixtures but preferentially solvated by NMP in the composition interval of 0.16 < x1 < 1.00.
Date: October 14, 2022
Creator: Tinjacá, Darío; Martínez, Fleming; Almanza, Ovidio A.; Jouyban, Abolghasem & Acree, William E. (William Eugene)
Object Type: Article
System: The UNT Digital Library
Sustainable nutrition: a spatially explicit modeling approach for urban land use planning (open access)

Sustainable nutrition: a spatially explicit modeling approach for urban land use planning

Article describes how rapid urbanization has influenced the transformation of local and global food systems, altering the availability, access to, and distribution of healthy food. Micronutrient deficiency and hunger have been exacerbated worldwide. The author's research proposes a simulation strategy to evaluate the impact of agricultural land use and crop choices on nutritional production in rapidly growing urban areas.
Date: October 14, 2022
Creator: Torres, Angélica Torres; Tiwari, Chetan & Atkinson, Samuel F.
Object Type: Article
System: The UNT Digital Library

Collection Evaluation for Enhancements: Global Economics

Presentation used to report the evaluation of UNT Libraries’ holdings supporting the curriculum and research in the area of global economics.
Date: November 14, 2022
Creator: Harker, Karen; Byrne, Sephra & Obaidullah, Sharif
Object Type: Presentation
System: The UNT Digital Library
Technical Communication Academic Program Review (open access)

Technical Communication Academic Program Review

This report summarizes an evaluation of the UNT Libraries' Technical Communication-related resources and materials to determine if the collection is adequately serving patron needs. It was generated as part of the UNT Libraries’ contributions to the university’s Academic Program Reviews, which are conducted by the Accreditation office in the Division of Planning. The UNT Libraries’ Collection Assessment Department evaluated collections’ ability to meet the curricular and research needs of the academic programs being reviewed. They assessed current needs based on course descriptions and research outputs, defined the scope of information needed based on this needs assessment, and evaluated the Libraries’ holdings in these subject areas against the usage, qualitative listings, and requests for materials from other libraries. Specific recommendations for collection development are provided based on the results of these analyses.
Date: October 14, 2022
Creator: Harker, Karen
Object Type: Report
System: The UNT Digital Library
Studio Art Academic Program Review (open access)

Studio Art Academic Program Review

This report summarizes an evaluation of the UNT Libraries' Studio Art-related resources and materials to determine if the collection is adequately serving patron needs. It was generated as part of the UNT Libraries’ contributions to the university’s Academic Program Reviews, which are conducted by the Accreditation office in the Division of Planning. The UNT Libraries’ Collection Assessment Department evaluated collections’ ability to meet the curricular and research needs of the academic programs being reviewed. They assessed current needs based on course descriptions and research outputs, defined the scope of information needed based on this needs assessment, and evaluated the Libraries’ holdings in these subject areas against the usage, qualitative listings, and requests for materials from other libraries. Specific recommendations for collection development are provided based on the results of these analyses.
Date: October 14, 2022
Creator: Harker, Karen
Object Type: Report
System: The UNT Digital Library
TWU-UNT Joint Master of Social Work Academic Program Review (open access)

TWU-UNT Joint Master of Social Work Academic Program Review

This report summarizes an evaluation of the UNT Libraries' Social Work-related resources and materials to determine if the collection is adequately serving patron needs. It was generated as part of the UNT Libraries’ contributions to the university’s Academic Program Reviews, which are conducted by the Accreditation office in the Division of Planning. The UNT Libraries’ Collection Assessment Department evaluated collections’ ability to meet the curricular and research needs of the academic programs being reviewed. They assessed current needs based on course descriptions and research outputs, defined the scope of information needed based on this needs assessment, and evaluated the Libraries’ holdings in these subject areas against the usage, qualitative listings, and requests for materials from other libraries. Specific recommendations for collection development are provided based on the results of these analyses.
Date: October 14, 2022
Creator: Harker, Karen
Object Type: Report
System: The UNT Digital Library
Biological Sciences Academic Program Review (open access)

Biological Sciences Academic Program Review

This report summarizes an evaluation of the UNT Libraries' Biological Sciences collection to determine if the collection is adequately serving patron needs. It was generated as part of the UNT Libraries’ contributions to the university’s Academic Program Reviews, which are conducted by the Accreditation office in the Division of Planning. The UNT Libraries’ Collection Assessment Department evaluated collections’ ability to meet the curricular and research needs of the academic programs being reviewed. They assessed current needs based on course descriptions and research outputs, defined the scope of information needed based on this needs assessment, and evaluated the Libraries’ holdings in these subject areas against the usage, qualitative listings, and requests for materials from other libraries. Specific recommendations for collection development are provided based on the results of these analyses.
Date: October 14, 2022
Creator: Harker, Karen
Object Type: Report
System: The UNT Digital Library