UNT Scholarly Works - 292 Matching Results

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open access

4-Coumarate 3-hydroxylase in the lignin biosynthesis pathway is a cytosolic ascorbate peroxidase

Description: Article describes an enzyme catalyzing the direct 3-hydroxylation of 4-coumarate to caffeate in lignin biosynthesis as a bifunctional peroxidase that oxidizes both ascorbate and 4-coumarate at comparable rates.
Date: April 30, 2019
Creator: Barros, Jaime; Escamilla-Treviño, Luis; Song, Luhua; Rao, Xiaolan; Serrani-Yarce, Juan Carlos; Docampo-Palacios, Maite et al.
Partner: UNT College of Science
open access

3D-FHNet: Three-Dimensional Fusion Hierarchical Reconstruction Method for Any Number of Views

Description: Article proposes a three-dimensional fusion hierarchical reconstruction method that utilizes a multi-view feature combination method and a hierarchical prediction strategy to unify the single view and any number of multiple views 3D reconstructions.
Date: November 22, 2019
Creator: Lu, Qiang; Lu, Yiyang; Xiao, Mingjie; Yuan, Xiaohui & Jia, Wei
Partner: UNT College of Engineering
open access

Absolute band alignment at semiconductor-water interfaces using explicit and implicit descriptions for liquid water

Description: Article presents a rigorous and systematic study of the band alignment of semiconductors in aqueous solutions by contrasting a range of hybrid explicit/implicit models against explicit atomistic simulations based on density-functional theory.
Date: October 11, 2019
Creator: Hörmann, Nicolas; Guo, Zhendong; Ambrosio, Francesco; Andreussi, Oliviero; Pasquarello, Alfredo & Marzari, Nicola
Partner: UNT College of Science
open access

Absorption and emission modulation in a MoS2–GaN (0001) heterostructure by interface phonon–exciton coupling

Description: Article reporting the change in the transient absorption characteristics of monolayer MoS2 and the modified PL emission characteristics in a monolayer MoS2–GaN (0001) heterostructure due to the coupling of carriers with the phonon modes and the energy exchange at the interface. The results demonstrate the relevance of interface coupling between the semiconductors for the development of optical and electronic applications.
Date: December 1, 2019
Creator: Poudel, Yuba; Sławińska, Jagoda; Gopal, Priya; Seetharaman, Sairaman; Hennighausen, Zachariah; Kar, Swastik et al.
Partner: UNT College of Science
open access

An acoustic analysis of American English liquids by adults and children: Native English speakers and native Japanese speakers of English

Description: This article is a study investigating acoustic characteristics of American English liquids produced by native English (NE) and native Japanese (NJ) speakers reported in Aoyama, Flege, Guion, Akahane-Yamada, and Yamada [(2004). J. Phonetics 32, 233–250]. The secondary aim of the study is to compare the acoustic nature of English liquids between native speakers and Japanese L2 speakers of English. This work was presented at the 170th Meeting of the Acoustical Society of America on June 25, 2017 i… more
Date: October 24, 2019
Creator: Aoyama, Katsura; Flege, James E.; Akahane-Yamada, Reiko & Yamada, Tsuneo
Partner: UNT College of Health and Public Service
open access

Adherence to Exercise Programs in Older Adults: Informative Report

Description: This article focuses on filling information gaps regarding adherence to physical activity and exercise in the health care spectrum of older adults (OA) and an overview of the benefits of physical activity for OA. Exercise adherence in OA is a multifactorial problem encompassing many biopsychosocial factors. Factors affecting adherence in the OA include socioeconomic status, education level, living arrangements, health status, pacemakers, physical fitness, and depression. Improving adherence cou… more
Date: January 22, 2019
Creator: Rivera-Torres, Solymar; Fahey, Thomas D. & Rivera, Miguel A.
Partner: UNT Health Science Center
open access

AFLOW-QHA3P: Robust and automated method to compute thermodynamic properties of solids

Description: Article introducing the quasiharmonic approximation three-phonon method to calculate the thermodynamic properties of both nonmetallic and metallic compounds. This study demonstrates that QHA3P is an ideal framework for the high-throughput prediction of finite-temperature material properties, combining the accuracy of QHA with the computational efficiency of SC-QHA.
Date: July 8, 2019
Creator: Nath, Pinku; Usanmaz, Demet; Hicks, David; Oses, Corey; Fornari, Marco; Buongiorno Nardelli, Marco et al.
Partner: UNT College of Science
open access

AI Agency Risks and Their Mitigation Through Business Process Management: A Conceptual Framework

Description: This article builds on agency theory and identify factors that increase the risk of an agency problem between a principal (a human or an organization) and an AI agent and propose a framework for AI agency problem analysis. The framework is illustrated through AI use cases and industry examples. Implications for AI governance research and practice are discussed. It was presented at the 52nd Hawaii International Conference on System Sciences.
Date: January 8, 2019
Creator: Sidorova, Anna & Rafiee, Dana
Partner: UNT College of Business
open access

Algorithmically Optimized Hemispherical Dome as a Secondary Optical Element for the Fresnel Lens Solar Concentrator

Description: This article focuses on a way to maximize the concentration acceptance product (CAP), while using the minimum SOE and receiver geometry at a given f-number and incidence angle (also referred to as the tracking error angle). The laws of polychromatic light refraction along with trigonometry and spherical geometry were utilized to optimize the POE grooves, SOE radius, receiver size, and SOE–receiver spacing.
Date: July 8, 2019
Creator: Qandil, Hassan; Wang, Shuping & Zhao, Weihuan
Partner: UNT College of Engineering
open access

All-acoustic signal modulation and logic operation via defect induced cavity effects in phononic crystal coupled-resonator acoustic waveguides

Description: Article describes experiment where a coupled resonant acoustic waveguide (CRAW) in a phononic crystal (PnC) was engineered to manipulate the propagation of ultrasonic waves within a conventional phononic bandgap for wavelength division multiplexing.
Date: November 6, 2019
Creator: Reyes, Delfino; Walker, Ezekiel; Zubov, Yurii; Heo, Hyeonu; Krokhin, Arkadii A. & Neogi, Arup
Partner: UNT College of Science
open access

Altered expression of ionotropic L-Glutamate receptors in aged sensory neurons of Aplysia californica

Description: Article describes study in which mRNA expression of iGluR was quantified in two sensory neuron clusters of two cohorts of Aplysia californica (Aplysia) at both sexual maturity (~8 months) and advanced age (~12 months) in order to examine if changes in ionotropic L-Glu receptor (iGluR) transcription underlie reduced physiology8
Date: May 23, 2019
Creator: Greer, Justin B.; Mager, Edward M. & Fieber, Lynne A.
Partner: UNT College of Science
open access

Altitudinal gradients in Magellanic sub-Antarctic lagoons: the effect of elevation on freshwater macroinvertebrate diversity and distribution

Description: In this article, freshwater macroinvertebrate diversity associated with lakes and ponds along the altitudinal gradient of a Magellanic sub-Antarctic watershed are assessed. A monotonic decline in species richness was observed with increasing elevation, with simpler and more even community composition at higher altitude. This pattern differs from the mid-peak trend found in streams of the same watershed. Functional feeding group structure also diminished with increasing elevation.
Date: July 29, 2019
Creator: Rendoll Cárcamo, Javier; Contador, Tamara; Gañán, Melisa; Pérez Troncoso, Carolina; Maldonado Márquez, Alan; Convey, Peter et al.
Partner: UNT College of Science
open access

Amplification of photoacoustic effect in bimodal polymer particles by self-quenching of indocyanine green

Description: This article presents a new type of bimodal contrast agent that is based on the self-quenching of indocyanine green (ICG) encapsulated in a biocompatible and biodegradable polymer shell.
Date: August 23, 2019
Creator: Mokrousov, Maksim D.; Novoselova, Marina V.; Nolan, Jackie; Harrington, Walter; Rudakovskaya, Polina; Bratashov, Daniil N. et al.
Partner: UNT College of Science
open access

Animal Resource Use Related to Socioenvironmental Change among Mesa Verde Farmers

Description: Article is a case study of Mesa Verde subsistence utilizing optimal foraging theory models from evolutionary ecology to study small animal resource use during the Pueblo II to Terminal Pueblo III periods.
Date: July 11, 2019
Creator: Nagaoka, Lisa; Wolverton, Steven J. & Ellyson, Laura J.
Partner: UNT College of Liberal Arts & Social Sciences
open access

Application-based design of the Fresnel lens solar concentrator

Description: Article investigates a novel genetically themed hierarchical algorithm (GTHA) to design Fresnel lens solar concentrators that match with the distinct energy input and spatial geometry of various thermal applications.
Date: August 2, 2019
Creator: Qandil, Hassan; Wang, Shuping & Zhao, Weihuan
Partner: UNT College of Engineering
open access

Application of a Thermoplastic Polyurethane/Polylactic Acid Composite Filament for 3d-Printed Personalized Orthosis

Description: Article exploring a suitable material for designing and fabricating personalized, cost-effective and bio-degradable orthoses. A finger orthosis was chosen as an example to explore a suitable material, personalized design method, and fabrication with a fuse-deposition-modeling (FDM) open-source 3D printer. Thermoplastic polyurethane (TPU)/polylactic acid (PLA) composite filaments were explored for 3D printing.
Date: February 2019
Creator: Tao, Yubo; Shao, Jingjiao; Li, Peng & Shi, Sheldon
Partner: UNT College of Engineering
open access

The Application of BP Neural Networks to Analysis the National Vulnerability

Description: Article uses the analytic hierarchy process (AHP) and natural breakpoint method (NBM) to implement an AHP-NBM comprehensive evaluation model to assess the national vulnerability to climate change.
Date: 2019
Creator: Zhao, Guodong; Zhang, Yuewei; Shi, Yiqi; Lan, Haiyan & Yang, Qing
Partner: UNT College of Engineering
open access

The Arabidopsis PAD4 Lipase-Like Domain Is Sufficient for Resistance to Green Peach Aphid

Description: Article exploring PAD4 functions in plant defense by expressing the N-terminal PAD4 lipase-like domain (PAD4ᴸᴸᴰ) without its C-terminal EDS1-PAD4 (EP) domain. The authors show that transgenic expression of PAD4ᴸᴸᴰ in Arabidopsis is sufficient for limiting GPA infestation but not for conferring basal and effector-triggered pathogen immunity. This suggests that the C-terminal PAD4 EP domain is necessary for EDS1-dependent immune functions but is dispensable for aphid resistance. Moreover, PAD4ᴸᴸ… more
Date: December 27, 2019
Creator: Dongus, Joram A.; Bhandari, Deepak D.; Patel, Monika; Archer, Lani; Dijkgraaf, Lucas; Shah, Jyoti et al.
Partner: UNT College of Science

Artificially structured boundary plasma trap

Description: This article presents a computer simulation of single-species non-neutral plasma confinement using an artificially structured boundary. The results support the prospect of developing plasma space-charge based confinement, with an unmagnetized plasma of one species of charged particles confined by an electric field produced by an edge-confined plasma of a second species of charged particles.
Date: September 20, 2019
Creator: Hedlof, R. M. & Ordonez, Carlos A.
Partner: UNT College of Science
open access

Assessing Statistical Anxiety Among Online and Traditional Students

Description: Article describes study which sought to determine whether scores on the Statistical Anxiety Scale (SAS) manifest in the same way for students in online and traditional statistics courses.
Date: July 4, 2019
Creator: Frey-Clark, Marta; Natesan, Prathiba & O’Bryant, Monique
Partner: UNT College of Education
open access

Assessing the Impact of the Built-Up Environment on Nighttime Lights in China

Description: Article describes study investigating the effects of the built-up environment on artificial light at night, focusing on construction region environments on nighttime brightness and variation with building heights and regional economic development level in China.
Date: July 19, 2019
Creator: Wang, Cheng; Qin, Haiming; Zhao, Kaiguang; Dong, Pinliang; Yang, Xuebo; Zhou, Guoqing et al.
Partner: UNT College of Liberal Arts & Social Sciences
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