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Action unit classification for facial expression recognition using active learning and SVM (open access)

Action unit classification for facial expression recognition using active learning and SVM

Article utilizing active learning and support vector machine (SVM) algorithms to classify facial action units (AU) for human facial expression recognition. Experimental results show that the proposed algorithm can effectively suppress correlated noise and achieve higher recognition rates than principal component analysis and a human observer on seven different facial expressions.
Date: April 4, 2021
Creator: Yao, Li; Wan, Yan & Xu, Bugao
Object Type: Article
System: The UNT Digital Library
Analyzing Mass Spectrometry Imaging Data of 13C-Labeled Phospholipids in Camelina sativa and Thlaspi arvense (Pennycress) Embryos (open access)

Analyzing Mass Spectrometry Imaging Data of 13C-Labeled Phospholipids in Camelina sativa and Thlaspi arvense (Pennycress) Embryos

This article uses currently available software and techniques to describe a workflow to analyze ¹³C-labeled isotopologues of the membrane lipid and storage oil lipid intermediate—phosphatidylcholine (PC). Results demonstrated greater ¹³C-isotopic labeling in the cotyledons of developing embryos compared with the embryonic axis.
Date: March 4, 2021
Creator: Romsdahl, Trevor B.; Kambhampati, Shrikaar; Koley, Somnath; Yadav, Umesh P.; Alonso, Ana Paula; Allen, Doug K. et al.
Object Type: Article
System: The UNT Digital Library
Architectural dimensions of socially driven venture capital firms: social innovation in the capital markets (open access)

Architectural dimensions of socially driven venture capital firms: social innovation in the capital markets

Article explores socially responsible VC architectural dimensions with implications for firm design based on blended measures of success.
Date: November 4, 2021
Creator: Jones, Raymond J. & Salimath, Manjula S.
Object Type: Article
System: The UNT Digital Library
Are States Created Equal? Moving to a State With More Expensive Childcare Reduces Mothers' Odds of Employment (open access)

Are States Created Equal? Moving to a State With More Expensive Childcare Reduces Mothers' Odds of Employment

This article investigates whether moving to a state with more expensive childcare is associated with lower odds of maternal employment among mothers who had been employed prior to relocation. Results show that moving to states with fewer childcare barriers is associated with higher levels of maternal employment, partly mitigating the negative labor market effects of interstate migration.
Date: March 4, 2021
Creator: Landivar, Liana Christin; Ruppanner, Leah & Scarborough, William
Object Type: Article
System: The UNT Digital Library
Brassinosteroids Inhibit Autotropic Root Straightening by Modifying Filamentous-Actin Organization and Dynamics (open access)

Brassinosteroids Inhibit Autotropic Root Straightening by Modifying Filamentous-Actin Organization and Dynamics

Article describes study testing the hypothesis that epi-brassinolide (eBL) might enhance root gravitropism through its effects on filamentous-actin (F-actin) in plants.
Date: February 4, 2020
Creator: Bang, Louise de; Paez-Garcia, Ana; Cannon, Ashley E.; Chin, Sabrina; Kolape, Jaydeep; Liao, Fuqi et al.
Object Type: Article
System: The UNT Digital Library
Chemical and Genetic Studies on the Formation of Pyrrolones During the Biosynthesis of Cytochalasans (open access)

Chemical and Genetic Studies on the Formation of Pyrrolones During the Biosynthesis of Cytochalasans

This article investigates the role of the highly conserved α,β-hydrolase enzymes PyiE and ORFZ during the biosynthesis of pyrichalasin H and the ACE1 metabolite, respectively, using gene knockout and complementation techniques. Taken together the results suggest that the α,β-hydrolase enzymes are essential for first ring cyclisation, but the precise nature of the intermediates remains to be determined.
Date: November 4, 2020
Creator: Zhang, Haili; Hantke, Verena; Bruhnke, Pia; Skellam, Elizabeth & Cox, Russell J.
Object Type: Article
System: The UNT Digital Library

Collection Evaluation for Enhancements: Languages and Literatures

Presentation used to report the evaluation of UNT Libraries’ holdings supporting the curriculum and research in the area of languages and literatures. This collection analysis was focused on the four languages which undergraduates and graduate degrees are offered, including literatures and cultures.
Date: December 4, 2023
Creator: Harker, Karen; Byrne, Sephra & Irhamni, Irhamni
Object Type: Presentation
System: The UNT Digital Library
COS: A new MeSH term embedding incorporating corpus, ontology, and semantic predications (open access)

COS: A new MeSH term embedding incorporating corpus, ontology, and semantic predications

Article studying the problem of incorporating corpus, ontology, and semantic predications to learn the embeddings of MeSH terms. The authors propose a novel framework, Corpus, Ontology, and Semantic predications-based MeSH term embedding (COS), to generate high-quality MeSH term embeddings.
Date: May 4, 2021
Creator: Ding, Juncheng & Jin, Wei
Object Type: Article
System: The UNT Digital Library
Dissecting the transcriptional regulation of proanthocyanidin and anthocyanin biosynthesis in soybean (Glycine max) (open access)

Dissecting the transcriptional regulation of proanthocyanidin and anthocyanin biosynthesis in soybean (Glycine max)

This article analyzes the transcriptional control of PA and anthocyanin biosynthesis in soybean. Results show that engineered PA biosynthesis in soybean exhibits qualitative and spatial differences from the better-studied model systems Arabidopsis thaliana and Medicago truncatula, and suggest targets for engineering PAs in soybean plants.
Date: February 4, 2021
Creator: Lu, Nan; Rao, Xiaolan; Jun, Ji Hyung & Dixon, R. A.
Object Type: Article
System: The UNT Digital Library
Does Perceived Competence Mediate between Ball Skills and Children’s Physical Activity and Enjoyment? (open access)

Does Perceived Competence Mediate between Ball Skills and Children’s Physical Activity and Enjoyment?

This article examines the potential mediating role of perceived motor skill competence on relationships between actual ball skills and children’s physical activity (PA) and PA enjoyment. Correlation analyses showed positive relationships among the study variables. The findings highlight that ball skills significantly impact students’ perceived competence, positively and indirectly affecting their PA and PA enjoyment.
Date: July 4, 2021
Creator: Zhang, Tao; Lee, Joonyoung; Barnett, Lisa M. & Gu, Xiangli
Object Type: Article
System: The UNT Digital Library
Effectiveness of a Single Prolonged Aerobic Exercise Session on Executive Function Task Performance in Physically Active Adults (21–70 Years of Age) (open access)

Effectiveness of a Single Prolonged Aerobic Exercise Session on Executive Function Task Performance in Physically Active Adults (21–70 Years of Age)

Authors of the article sought to examine the effectiveness of an acute prolonged exercise session on post-exercise executive function in physically active adults and to assess if age or pre-exercise cognitive performance was predictive of the magnitude of change in executive task performance. Their results support the effectiveness of a single prolonged exercise bout to augment executive function in physically active adults, irrespective of age.
Date: February 4, 2023
Creator: Yates, Brandon A.; Armstrong, Lawrence E.; Lee, Elaine C.; Unverzagt, Frederick W.; Dadzie, Ekow Jr.; Williamson, Keith et al.
Object Type: Article
System: The UNT Digital Library
Enhanced Corrosion Resistance and Surface Wettability of PVDF/ZnO and PVDF/TiO2 Composite Coatings: A Comparative Study (open access)

Enhanced Corrosion Resistance and Surface Wettability of PVDF/ZnO and PVDF/TiO2 Composite Coatings: A Comparative Study

Article describes how this study aims to enhance the practical performance of PVDF/ZnO and PVDF/TiO2 composite coatings known for their distinctive properties. The coatings, applied through spray coating with PVDF and ZnO or TiO2 nanoparticles on glass, steel, and aluminum substrates, underwent a comprehensive evaluation.
Date: October 4, 2023
Creator: Mohamed, Adel M. A.; Alateyah, Abdulrahman I.; Hasan, Hosam; Matli, Penchal Reddy; El-Sayed Seleman, Mohamed M.; Ahmed, Essam et al.
Object Type: Article
System: The UNT Digital Library

Escape/Breakout Room for Juvenile Collection

Presentation of on the development of a virtual escape/breakout room by librarians at UNT to increase visibility and knowledge of the juvenile collection. This presentation provides a framework for content creation and lessons learned. It was presented at the 2022 Brick & Click Conference held on November 4, 2022.
Date: November 4, 2022
Creator: Monahan, Jo
Object Type: Presentation
System: The UNT Digital Library

Evaluation of Information Representation and Knowledge Organization in Cultural Heritage Organizations in Arabian Gulf Countries: A Case Study of Alqabas Archive

Presentation exploring how information is organized in digital cultural heritage collection in Arabian Gulf countries. Study reveals high metadata quality overall but lack of consistency for many metadata fields, explained in part by the absence of metadata creation guidelines and professional training for metadata creators.
Date: December 4, 2020
Creator: Aljalahmah, Saleh & Zavalina, Oksana
Object Type: Presentation
System: The UNT Digital Library
Expand-and-Randomize: An Algebraic Approach to Secure Computation (open access)

Expand-and-Randomize: An Algebraic Approach to Secure Computation

This article considers the secure computation problem in a minimal model, where Alice and Bob each holds an input and wish to securely compute a function of their inputs at Carol without revealing any additional information about the inputs. For this minimal secure computation problem, the authors propose a novel coding scheme built from two steps. First, the function to be computed is expanded such that it can be recovered while additional information might be leaked. Second, a randomization step is applied to the expanded function such that the leaked information is protected. The authors implement this expand-and-randomize coding scheme with two algebraic structures—the finite field and the modulo ring of integers, where the expansion step is realized with the addition operation and the randomization step is realized with the multiplication operation over the respective algebraic structures.
Date: November 4, 2021
Creator: Zhao, Yizhou & Sun, Hua
Object Type: Article
System: The UNT Digital Library
A Gaze into the Internal Logic of Graph Neural Networks, with Logic (open access)

A Gaze into the Internal Logic of Graph Neural Networks, with Logic

Article exploring graph node property prediction. Originally presented as part of the application track at the 38th International Conference on Logic Programming in Haifa, Israel.
Date: August 4, 2022
Creator: Tarau, Paul
Object Type: Article
System: The UNT Digital Library
Homologues and homology and their related terms in phylogenetic systematics (open access)

Homologues and homology and their related terms in phylogenetic systematics

Article describes how, in the field of phylogenetic systematics, the terms homology and homologue and their relationship to cladistic terms such as character, character state, synapomorphy and symplesiomorphy, as well as their relationships to each other, have been and are still discussed frequently. A recent re-emergence of concepts of homology/homologue free of any reference to explanatory hypotheses prompted the authors to explore these concepts and their relationships to each other as well as to the concept of morpheme, as introduced recently.
Date: February 4, 2023
Creator: Göpel, Torben & Richter, Stefan
Object Type: Article
System: The UNT Digital Library
The impact of high-immersion virtual reality on foreign language anxiety (open access)

The impact of high-immersion virtual reality on foreign language anxiety

Authors of the article assert that public speaking, especially in a foreign language, is associated with increased anxiety. The authors found that VR technology had a positive effect on practicing public speaking in a foreign language, the research findings have practical implications for professionals and curriculum designers in various domains where public speaking skills are essential.
Date: October 4, 2023
Creator: Kaplan-Rakowski, Regina & Gruber, Alice
Object Type: Article
System: The UNT Digital Library
Impact of psychosocial factors on academic performance of nursing students in Thailand (open access)

Impact of psychosocial factors on academic performance of nursing students in Thailand

Article investigates psychosocial factors that impact the academic performance of nursing students.
Date: July 4, 2022
Creator: Ratanasiripong, Paul; Wang, Chiachih DC; Ratanasiripong, Nop; Hanklang, Suda; Kathalae, Duangrat & Chumchai, Pornlert
Object Type: Article
System: The UNT Digital Library
Initial Response to COVID-19: A Mixed-Methods Analysis of Media and School Communications to Identify Pedagogical Implications for Remote Teaching (open access)

Initial Response to COVID-19: A Mixed-Methods Analysis of Media and School Communications to Identify Pedagogical Implications for Remote Teaching

Article examining one month of social media, news media, school district websites’ continuity plans and educational affiliate organizations, to unveil K-12 stakeholders’ initial response to K-12 remote teaching following the declaration of the national emergency of the COVID-19 pandemic in the USA. Initial responses focused on community lockdown procedures, sustaining education, adapting to a remote lifestyle and political tension. The authors revisited included tweets one week later to measure their connectedness, which revealed that educational organizations, which have the largest number of followers, also have the greatest outreach and visibility. This is the accepted manuscript of the article which has been approved to post in an institutional repository.
Date: December 4, 2020
Creator: Eutsler, Lauren; Antonenko, Pavlo D. & Mitchell, Chrystine
Object Type: Article
System: The UNT Digital Library

Investigating the Use of Metadata Record Graphs to Analyze Subject Headings in the Digital Public Library of America

Presentation discussing network analysis of aggregated subject values in the Digital Public Library of America (DPLA), with a discussion of how format normalization could affect subject overlap across collections.
Date: August 4, 2020
Creator: Phillips, Mark Edward & Tarver, Hannah
Object Type: Presentation
System: The UNT Digital Library
Investigating the Use of Metadata Record Graphs to Analyze Subject Headings in the Digital Public Library of America (open access)

Investigating the Use of Metadata Record Graphs to Analyze Subject Headings in the Digital Public Library of America

Article discussing network analysis of aggregated subject values in the Digital Public Library of America (DPLA), with a discussion of how format normalization could affect subject overlap across collections.
Date: November 4, 2021
Creator: Phillips, Mark Edward & Tarver, Hannah
Object Type: Article
System: The UNT Digital Library
Leaf Lipid Alterations in Response to Heat Stress of Arabidopsis thaliana (open access)

Leaf Lipid Alterations in Response to Heat Stress of Arabidopsis thaliana

Article measuring lipid levels with mass spectrometry to confirm the previously observed changes in Arabidopsis thaliana leaf lipids under three heat stress regimens. Additionally, in response to heat, increased oxidation of the fatty acyl chains of leaf galactolipids, sulfoquinovosyldiacylglycerols, and phosphatidylglycerols, and incorporation of oxidized acyl chains into acylated monogalactosyldiacylglycerols are shown. The authors also observed increased levels of digalactosylmonoacylglycerols and monogalactosylmonoacylglycerols. The hypothesis that a defect in sterol glycosylation would adversely affect regrowth of plants after a severe heat stress regimen was tested, but differences between wild-type and sterol glycosylation-defective plants were not detected.
Date: July 4, 2020
Creator: Shiva, Sunitha; Samarakoon, Thilani; Lowe, Kaleb A.; Roach, Charles; Vu, Hieu Sy; Colter, Madeline et al.
Object Type: Article
System: The UNT Digital Library
Modulating Uranium Extraction Performance of Multivariate Covalent Organic Frameworks through Donor–Acceptor Linkers and Amidoxime Nanotraps (open access)

Modulating Uranium Extraction Performance of Multivariate Covalent Organic Frameworks through Donor–Acceptor Linkers and Amidoxime Nanotraps

Article presents a COF (covalent organic framework)-based adsorption-photocatalysis strategy for selective removal of uranyl from seawater in the absence of sacrificial reagents. This work shows that multivariate COF adsorption-photocatalysts can be rationally engineered to work efficiently and stably without sacrificial electron donors, thus opening the pathway for the economic and efficient extraction of uranium from the earth’s oceans.
Date: January 4, 2023
Creator: Hao, Mengjie; Xie, Yinghui; Liu, Xiaolu; Chen, Zhongshan; Yang, Hui; Waterhouse, Geoffrey I. N. et al.
Object Type: Article
System: The UNT Digital Library