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126 Matching Results
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AI, Arts & Design: Questioning Learning Machines
Article is an introduction to Artnodes issue No. 26, “AI, Arts & Design: Questioning Learning Machines" which addresses the question: Does generative and machine creativity in the arts and design represent an evolution of “artistic intelligence,” or is it a metamorphosis of creative practice yielding fundamentally distinct forms and modes of authorship?
Date:
July 2020
Creator:
West, Ruth & Burbano, Andres
Object Type:
Article
System:
The UNT Digital Library
Multitask deep-learning-based design of chiral plasmonic metamaterials
This article presents an end-to-end functional bidirectional deep-learning (DL) model for three-dimensional chiral metamaterial design and optimization. This ML model utilizes multitask joint learning features to recognize, generalize, and explore in detail the nontrivial relationship between the metamaterials’ geometry and their chiroptical response, eliminating the need for auxiliary networks or equivalent approaches to stabilize the physically relevant output. This model efficiently realizes both forward and inverse retrieval tasks with great precision, offering a promising tool for iterative computational design tasks in complex physical systems. Other potential applications include photodetectors, polarization-resolved imaging, and circular dichroism (CD) spectroscopy.
Date:
July 1, 2020
Creator:
Ashalley, Eric; Acheampong, Kingsley; Besteiro, Lucas V.; Yu, Peng; Neogi, Arup; Govorov, Alexander O. et al.
Object Type:
Article
System:
The UNT Digital Library
COVID-19 and the gender gap in work hours
Article using panel data from the US Current Population Survey to examine changes in mothers’ and fathers’ work hours from February through April 2020, the period of time prior to the widespread COVID-19 outbreak in the United States and through its first peak. Using person-level fixed effects models, we find that mothers with young children have reduced their work hours four to five times more than fathers.
Date:
July 2, 2020
Creator:
Collins, Caitlyn; Landivar, Liana Christin; Ruppanner, Leah & Scarborough, William
Object Type:
Article
System:
The UNT Digital Library
Engineering transformation pathways in an Al0.3CoFeNi complex concentrated alloy leads to excellent strength–ductility combination
Article reports a novel multi-phase microstructure in a HEA/CCA similar to the microstructure observed in dual-phase stainless steel.
Date:
July 2, 2020
Creator:
Dasari, S.; Jagetia, Abhinav; Soni, V.; Gwalani, Bharat; Banerjee, Rajarshi & Gorsse, Stéphane
Object Type:
Article
System:
The UNT Digital Library
Remodeling the epigenome and (epi)cytoskeleton: a new paradigm for co-regulation by methylation
This article is a commentary on coordinated use of methyl marks to remodel both the epigenome and the (epi)cytoskeleton, which opens the possibility for integrated regulation (referred to as ‘epiregulation’) of other higher-level functions, such as muscle contraction or learning and memory, and could even have evolutionary implications.
Date:
July 3, 2020
Creator:
Walker, Cheryl & Burggren, Warren W.
Object Type:
Article
System:
The UNT Digital Library
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
Nematic order on a deformable vesicle with anchoring effects
This article proposes a new model to represent a vesicle membrane with internal nematic order whose equilibrium states depend on the competition between the bending, elastic and anchoring energies.
Date:
July 7, 2020
Creator:
Tierra Chica, Giordano; Guillén-González, Francisco & Rodríguez-Bellido, María Ángeles
Object Type:
Article
System:
The UNT Digital Library
In silico guided structural and functional analysis of genes with potential involvement in resistance to coffee leaf rust: A functional marker based approach
Article presents novel insights into the molecular nature of the SH genes, thereby opening new avenues for coffee rust resistance molecular breeding.
Date:
July 8, 2020
Creator:
Ferreira, Svio Siqueira; Barka, Geleta Dugassa; Caixeta, Eveline Teixeira & Zambolim, Larcio
Object Type:
Article
System:
The UNT Digital Library
Monitoring, Mapping, and Modeling Spatial–Temporal Patterns of PM2.5 for Improved Understanding of Air Pollution Dynamics Using Portable Sensing Technologies
This article maps the dynamics of PM2.5 concentrations at high spatio-temporal resolutions using bicycle-based, mobile measures on a university campus.
Date:
June 5, 2020
Creator:
Hart, Ronan; Liang, Lu & Dong, Pinliang
Object Type:
Article
System:
The UNT Digital Library
Electropolymerizable meso-Tetrakis Biphenyl-Bis(bithiophene) Zinc Porphyrin: Ground and Excited State Properties in Solution and in Films with Axially Coordinated C60
Article presenting research where an electropolymerizable zinc porphyrin carrying eight entities of peripheral bithiophene, 4 was newly designed and synthesized.
Date:
July 9, 2020
Creator:
Ganesan, Ashwin; Shao, Shuai; Seetharaman, Sairaman; Perera, Wijayantha A. & D'Souza, Francis
Object Type:
Article
System:
The UNT Digital Library
Private patient rooms and hospital-acquired methicillin-resistant Staphylococcus aureus: A hospital-level analysis of administrative data from the United States
Article presents research using hospital-level data from the US to determine whether private patient rooms (PPRs) are associated with fewer in hospital-acquired methicillin-resistant Staphylococcus aureus (HA-MRSA) infections.
Date:
July 9, 2020
Creator:
O'Neill, Liam; Stockbridge, Erica L.; Miller, Thaddeus L. & Park, Sae-Hwan
Object Type:
Article
System:
The UNT Digital Library
Inkjet-printed MoS₂-based field-effect transistors with graphene and hexagonal boron nitride inks
This article reports the design, fabrication, and characterization of an all inkjet-printed field-effect transistor (FET).
Date:
July 10, 2020
Creator:
Hossain, Ridwan F. & Kaul, Anupama
Object Type:
Article
System:
The UNT Digital Library
Prolate and oblate chiral liquid crystal spheroids
Article examining the palette of morphologies that arises when microdroplets are deformed into nonspherical shapes in a controllable manner. Specifically, geometrical confinement and mechanical strain are used to manipulate orientational order, phase transitions, and topological defects that arise in chiral liquid crystal droplets. The reported structures and assemblies offer potential for applications in smart coatings, smart fabrics, and wearable sensors.
Date:
July 10, 2020
Creator:
Sadati, Monirosadat; Martínez-González, José A.; Zhou, Ye; Qazvini, Nader Taheri; Kurtenbach, Khia; Li, Xiao et al.
Object Type:
Article
System:
The UNT Digital Library
Seedling Chloroplast Responses Induced by N-Linolenoylethanolamine Require Intact G-Protein Complexes
This article shows that the activity of N-linolenoylethanolamine (NAE 18:3) requires an intact G-protein complex. Specifically, genetic ablation of the Gβγ dimer or loss of the full set of atypical Gα subunits strongly attenuates an NAE-18:3–induced degreening of cotyledons in Arabidopsis (Arabidopsis thaliana) seedlings. This effect involves, at least in part, transcriptional regulation of chlorophyll biosynthesis and catabolism genes. In addition, there is feedforward transcriptional control of G-protein signaling components and G-protein interactors. These results are consistent with NAE 18:3 being a lipid signaling molecule in plants with a requirement for G-proteins to mediate signal transduction, a situation similar, but not identical, to the action of NAE endocannabinoids in animal systems.
Date:
July 14, 2020
Creator:
Yan, Chengshi; Cannon, Ashley E.; Watkins, Justin; Keereetaweep, Jantana; Khan, Bibi Rafeiza; Jones, Alan M. et al.
Object Type:
Article
System:
The UNT Digital Library
Structural equation modeling of the associations between amygdala activation, personality, and internalizing, externalizing symptoms of psychopathology
Article examining how amygdala activation to facial expressions was linked with self-report of personality traits and clinical interviews of internalizing and externalizing symptoms of psychopathology. Structural equation modeling results revealed direct associations of amygdala activation with personality trait expression, as well as indirect associations (though personality) with symptoms of psychopathology.
Date:
July 14, 2020
Creator:
Neumann, Craig S.
Object Type:
Article
System:
The UNT Digital Library
Lipophilic signals lead to organ-specific gene expression changes in Arabidopsis seedlings
Article presents a study where whole transcriptome sequencing (RNA-seq) and differential expression analysis were used to identify early (1–3 hr) transcriptional changes induced by the exogenous treatment of NAE 18:2 and NAE 18:3 in cotyledons, roots, and seedlings.
Date:
July 15, 2020
Creator:
Cannon, Ashley E.; Yan, Chengshi; Burks, David J.; Rao, Xiaolan; Azad, Rajeev K. & Chapman, Kent Dean
Object Type:
Article
System:
The UNT Digital Library
Developing a Metadata Ecosystem at the UNT Libraries
Presentation for Drexel University's "Metadata Mixers" series describing some of the features and tools that UNT Libraries have been implementing for metadata creation and assessment in the Digital Collections and how they all work together to support metadata activities.
Date:
July 16, 2020
Creator:
Phillips, Mark Edward & Tarver, Hannah
Object Type:
Presentation
System:
The UNT Digital Library
Plasmon-resonance emission tailoring of “origami” graphene-covered photonic gratings
Article focusing on the modification of optical properties through folding, or “origami,” of graphene covering a plasmonic metal channel grating. This work is especially critical to understanding tailored deep plasmon emission from geometrically-modulated conducting sheets such as graphene.
Date:
July 16, 2020
Creator:
Araki, Ken & Zhang, Richard Z.
Object Type:
Article
System:
The UNT Digital Library
A practical guide for assessing respiratory burst and phagocytic cell activity in the fathead minnow, an emerging model for immunotoxicity
Article is a study with the goal of optimizing and validating the use of a colorimetric plate-based respiratory burst and fluorometric plate-based phagocytic cell activity assays for use with kidney cells from the fathead minnow (Pimephales promelas), an emerging immunotoxicity model.
Date:
July 18, 2020
Creator:
Thornton Hampton, Leah M.; Venables, Barney J. & Jeffries, Marlo K. Sellin
Object Type:
Article
System:
The UNT Digital Library
Microstructurally flexible high entropy alloys: Linkages between alloy design and deformation behavior
Article presents research where metastability based alloy design led to flexible microstructural evolution in which either thermodynamically stable γ-phase or unstable ε-phase was obtained at room temperature.
Date:
July 19, 2020
Creator:
Nene, Saurabh S.; Frank, M.; Agrawal, P.; Sinha, Subhasis; Liu, Kaimiao; Shukla, Shivakant et al.
Object Type:
Article
System:
The UNT Digital Library
A New Cable-Less Seismograph with Functions of Real-Time Data Transmitting and High-Precision Differential Self-Positioning
This article developed a new cable-less seismograph system, which can transmit seismic data in real-time and automatically perform high-precision differential self-positioning. Combining the ZigBee technology with the high-precision differential positioning module, this new seismograph system utilized the wireless personal area network (WPAN) and real-time kinematic (RTK) technologies to improve its on-site performances and to make the field quality control (QC) and self-positioning possible. With the advantages of low-cost, good scalability, and good compatibility, the proposed new cable-less seismograph system can improve the field working efficiency and data processing capability. It has potential applications in noise seismology and mobile seismic monitoring.
Date:
July 19, 2020
Creator:
Liu, Kang; You, Qingyu; Wang, Juan; Xu, Xiqiang; Shi, Pengcheng; Dai, Kaoshan et al.
Object Type:
Article
System:
The UNT Digital Library
Relating size and functionality in human social networks through complexity
Article argues that the Dunbar number arises as a consequence of a natural phase transition in the dynamic self-organization among N individuals within a social system. The authors provide a theoretical basis for the value of the Dunbar number and establish a theory-based bridge spanning the gap between sociology and psychology.
Date:
July 20, 2020
Creator:
Massari, Giovanni F.; Culbreth, Garland; Failla, Roberto; Grigolini, Paolo; West, Bruce J. & Bologna, Mauro
Object Type:
Article
System:
The UNT Digital Library
SEIPIN Isoforms Interact with the Membrane-Tethering Protein VAP27-1 for Lipid Droplet Formation
Article demonstrating that part of the function of two SEIPIN isoforms in Arabidopsis (Arabidopsis thaliana), AtSEIPIN2 and AtSEIPIN3, may depend on their interaction with the vesicle-associated membrane protein (VAMP)–associated protein (VAP) family member AtVAP27-1. The authors used a combination of biochemical, cell biology, and genetics approaches to show that AtVAP27-1 interacts with the N termini of AtSEIPIN2 and AtSEIPIN3 and likely supports the normal formation of LDs. This insight indicates that the ER membrane tethering machinery in plant cells could play a role with select SEIPIN isoforms in LD biogenesis at the ER, and additional experimental evidence in Saccharomyces cerevisiae supports the possibility that this interaction may be important in other eukaryotic systems.
Date:
July 20, 2020
Creator:
Greer, Michael Scott; Cai, Yingqi; Gidda, Satinder K.; Esnay, Nicolas; Kretzschmar, Franziska K.; Seay, Damien C. et al.
Object Type:
Article
System:
The UNT Digital Library
MYB30 Orchestrates Systemic Reactive Oxygen Signaling and Plant Acclimation
This article explores the relationship among MYB30, the ROS wave, and systemic acclimation in Arabidopsis by determining the SAA response to HL stress of MYB30 mutants and wild-type plants.
Date:
July 22, 2020
Creator:
Fichman, Yosef; Zandalinas, Sara I.; Sengupta, Soham; Burks, David J.; Meyers, Ronald J., Jr.; Azad, Rajeev K. et al.
Object Type:
Article
System:
The UNT Digital Library