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Role of heterophase interfaces on local coercivity mechanisms in the magnetic Al0.3CoFeNi complex concentrated alloy
Article describes how authors use state-of-the-art electron microscopy techniques to show that the magnetization reversal process in an Al0.3CoFeNi magnetic complex concentrated alloy (CCA), which is responsible for its coercivity, changes dramatically from a nucleation-type mechanism in the FCC+L12 state of the CCA. Their work reveals that heterophase FCC/BCC interfaces have a much stronger effect on coercivity than isostructural chemically ordered/disordered interfaces and provides a powerful guide to the rational design of microstructure to tune magnetic properties in both complex concentrated alloys and conventional magnetic alloys.
Date:
January 10, 2023
Creator:
Kovács, András; Venkataraman, Nithin B.; Chaudhary, V.; Dasari, Sriswaroop; Denneulin, Thibaud; Ramanujan, R. V. et al.
Object Type:
Article
System:
The UNT Digital Library
Using CRISPR/Cas to enhance gene expression for crop trait improvement by editing miRNA targets
Article states that gene editing tools such as CRISPR/Cas9 are often thought of as a means to prevent gene expression; however, a more subtle and yet powerful approach is the enhancement of gene expression by precise deletion of repressor sites within a gene of interest. Authors argue that gene editing of miRNA target sites is preferable over deletion of the miRNA genes themselves, given that it avoids the pitfalls of unspecific derepression of miRNA target(s) beyond the gene of interest.
Date:
January 10, 2023
Creator:
Ferreira, Savio S. & Reis, Rodrigo S.
Object Type:
Article
System:
The UNT Digital Library
A metabolomic platform to identify and quantify polyphenols in coffee and related species using liquid chromatography mass spectrometry
Article describes how products of plant secondary metabolism, such as phenolic compounds, flavonoids, alkaloids, and hormones, play an important role in plant growth, development, stress resistance. The authors state that the overall goal of this study was to develop a high-throughput workflow to identify and quantify plant polyphenols.
Date:
January 6, 2023
Creator:
Castro-Moretti, Fernanda R.; Cocuron, Jean-Christophe; Castillo-Gonzalez, Humberto; Escudero-Leyva, Efrain; Chaverri, Priscila; Guerreiro-Filho, Oliveiro et al.
Object Type:
Article
System:
The UNT Digital Library
An investigation of steric influence on the reactivity of FeV(O)(OH) tautomers in stereospecific C–H hydroxylation
Article describes how two new tetradentate N4 ligands (LN4), LN4 = Me2,Me2PyzTACN (1-(2-(3,5-dimethyl-1H-pyrazol-1-yl)ethyl)-4,7-dimethyl-1,4,7-triazacyclononane) and Me2,MeImTACN (1-((1-methyl-1H-imidazol-1-yl)methyl)-4,7-dimethyl-1,4,7-triazacyclononane) have been synthesized and their corresponding Fe(II) complexes [FeII(Me2,Me2PyzTACN)(CF3SO3)2], 1Pz, and [FeII(Me2,MeImTACN)(CF3SO3)2], 1Im, have been prepared and characterized. Based on these labelling studies, the steric influence exerted by each of the ligands towards the relative reactivity of the oxo ligands of the corresponding pair of Fe(V)(O)(OH) tautomers can be derived.
Date:
January 5, 2023
Creator:
Mitra, Mainak; Brinkmeier, Alexander; Li, Yong; Borrell, Margarida; Call, Arnau; Fillol, Julio Lloret 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
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
A gene based combination test using GWAS summary data
Article describes how gene-based association tests provide a useful alternative and complement to the usual single marker association tests, especially in genome-wide association studies (GWAS). The authors propose a test named OWC based on summary statistics from GWAS data.
Date:
January 3, 2023
Creator:
Zhang, Jianjun; Liang, Xiaoyu; Gonzales, Samantha; Liu, Jianguo; Gao, Xiaoyi Raymond & Wang, Xuexia
Object Type:
Article
System:
The UNT Digital Library
Biocultural homogenization in elementary education degree students from contrasting ecoregions of Chile
Article describes how biocultural homogenization is a wicked problem that implies the loss of biological and cultural diversity at different scales. The authors studied the perceptions that elementary education degree students (EEDS) have regarding the flora and fauna (co-inhabitants), their environments (habitats), and their daily customs or activities (habits) in these three ecoregions.
Date:
2023
Creator:
Méndez-Herranz, Manuela; Ibarra, J. Tomás; Rozzi, Ricardo, 1960- & Marini, Guillermo
Object Type:
Article
System:
The UNT Digital Library
A polar insect's tale: Observations on the life cycle of Parochlus steinenii, the only winged midge native to Antarctica
Article asserts that Antarctica and the sub-Antarctic islands include some of the world’s most extreme and pristine terrestrial habitats. The authors studied the habitat preferences and the life history of P. steinenii in Lake Kitiesh, Fildes Peninsula, King George Island over the austral summer seasons from 2014 to 2019, during short (several weeks) field expeditions.
Date:
December 24, 2022
Creator:
Mejias, Tamara Contador; Gañán, Melisa; Rendoll Cárcamo, Javier; Maturana, Claudia S.; Benítez, Hugo A.; Kennedy, James H. et al.
Object Type:
Article
System:
The UNT Digital Library
A Europium-Based Optical Sensor for the Detection of Carbon Dioxide and Its Application for a Fermentation Reaction
Article discusses a new europium-based complex, K[Eu(hfa)4] with hfa = hexafluoroacetylacetonate is synthesized and its structure confirmed via X-ray crystallography. Based on the data collected, a highly stable, brightly red-emissive Eu(III) complex with the ability to differentiate concentrations of CO2 in solution is hereby developed and characterized with benefits for various CO2 sensing applications.
Date:
December 21, 2022
Creator:
Benton, Erin N.; Rajitha Perera, Nawagamu A. K.; Nesterov, Vladimir N.; Perera, Wijayantha; Omary, Mohammad A. & Marpu, Sreekar
Object Type:
Article
System:
The UNT Digital Library
Molecular signatures in the progression of COVID-19 severity
Authors of the article discuss that to uncover genes and pathways involved in the differential clinical manifestations of COVID-19 they developed a novel gene co-expression network-based pipeline that uses gene expression obtained from different SARS-CoV-2 infected human tissues. Their study shines a new light on genes and their networks (modules) that drive the progression of COVID-19 from moderate to extremely severe condition, which could aid development of new therapeutics to combat COVID-19.
Date:
December 21, 2022
Creator:
De, Ronika & Azad, Rajeev K.
Object Type:
Article
System:
The UNT Digital Library
Population-based analysis of POT1 variants in a cutaneous melanoma case–control cohort
Article describes how pathogenic germline variants in the protection of telomeres 1 gene (POT1) have been associated with predisposition to a range of tumor types, including melanoma, glioma, leukemia and cardiac angiosarcoma. The authors sequenced all coding exons of the POT1 gene in 2928 European-descent melanoma cases and 3298 controls, identifying 43 protein-changing genetic variants.
Date:
December 20, 2022
Creator:
Simonin-Wilmer, Irving; Ossio, Raul; Leddin, Emmett M.; Harland, Mark; Pooley, Karen A.; Martil de la Garza, Mauricio Gerardo et al.
Object Type:
Article
System:
The UNT Digital Library
Are Tourists Facilitators of the Movement of Free-Ranging Dogs?
Article discusses how free-ranging dogs are of major conservation concern worldwide as they negatively affect wildlife. Although scientists and governmental agencies are aware of the problem and responsible pet ownership strategies are beginning to be implemented, the tourism sector must be explicitly integrated into wildlife conservation management strategies.
Date:
December 16, 2022
Creator:
Schüttler, Elke & Jiménez, Jaime E.
Object Type:
Article
System:
The UNT Digital Library
The chemical coupling between moist CO oxidation and gas-phase potassium sulfation
Article discusses how the chemical coupling between moist CO oxidation and transformation of gaseous potassium salts (KCl or KOH) in the presence and absence of SO2 was investigated experimentally and through chemical kinetic modeling. Analysis of the calculations indicates that sulfation pathways in the model involving KOSO3 contribute to the overprediction, but both the thermodynamic properties and rate constants in the model involve significant uncertainties and more work is required to resolve the discrepancy.
Date:
December 15, 2022
Creator:
Chanpirak, Arphaphon; Hashemi, Hamid; Frandsen, Flemming; Wu, Hao; Glarborg, Peter & Marshall, Paul
Object Type:
Article
System:
The UNT Digital Library
Lignocellulosic-Based Activated Carbon-Loaded Silver Nanoparticles and Chitosan for Efficient Removal of Cadmium and Optimization Using Response Surface Methodology
Article expresses how the cadmium-contaminated water body is a worldwide concern for the environment and toxic to human beings and the removal of cadmium ions from drinking and groundwater sustainably and cost-effectively is important. The results showed that synthesized CS-KAC-Ag was a biocompatible and versatile porous filtering material for the decontamination of different toxic metal ions.
Date:
December 13, 2022
Creator:
Mandal, Sujata; Marpu, Sreekar; Omary, Mohammad A.; Dinulescu, Catalin C.; Prybutok, Victor R. & Shi, Sheldon
Object Type:
Article
System:
The UNT Digital Library
Using solar radiation data in soil moisture diagnostic equation for estimating root-zone soil moisture
Article describes how the soil moisture daily diagnostic equation (SMDE) evaluates the relationship between the loss function coefficient and the summation of the weighted average of precipitation. The study has confirmed that using actual solar radiation data in the soil moisture daily diagnostic equation can improve its accuracy.
Date:
December 12, 2022
Creator:
Omotere, Olumide; Pan, Feifei & Wang, Lei
Object Type:
Article
System:
The UNT Digital Library
The Crucial Role of Solvation Forces in the Steric Stabilization of Nanoplatelets
Article says that the steric stability of inorganic colloidal particles in an apolar solvent is usually described in terms of the balance between three contributions: the van der Waals attraction, the free energy of mixing, and the ligand compression. The authors demonstrate that for sufficiently large nanoplatelets, solvation forces are proportional to the interacting facet area, and their strength is intrinsically tied to the softness of the ligand shell.
Date:
December 9, 2022
Creator:
Petersen, Nanning; Girard, Martin; Riedinger, Andreas & Valsson, Omar
Object Type:
Article
System:
The UNT Digital Library
An experimental and chemical kinetic modeling study of the role of potassium in the moist oxidation of CO
Article investigates the effect of KCl on moist CO oxidation in a laminar flow quartz reactor. Experiments were conducted in the absence of O2 (gasification), as well as under reducing and fuel-lean conditions, in the temperature range 873–1573 K, and the results were interpreted in terms of a chemical kinetic model.
Date:
December 9, 2022
Creator:
Chanpirak, Arphaphon; Wu, Hao; Glarborg, Peter & Marshall, Paul
Object Type:
Article
System:
The UNT Digital Library
Fatty acid amide hydrolase and 9-lipoxygenase modulate cotton seedling growth by ethanolamide oxylipin levels
Article asserts that polyunsaturated N-acylethanolamines (NAEs) can be hydrolyzed by fatty acid amide hydrolase (FAAH) or oxidized by lipoxygenase (LOX). Altogether, the authors conclude that the growth of cotton seedlings involves fine-tuning of 9-NAE-HOD levels via FAAH-mediated hydrolysis and LOX-mediated production, expanding the mechanistic understanding of plant growth modulation by NAE oxylipins to a perennial crop species.
Date:
December 6, 2022
Creator:
Gaguancela-Arias, Omar; Aziz, Mina & Chapman, Kent Dean
Object Type:
Article
System:
The UNT Digital Library
Reconstructing horizontal gene flow network to understand prokaryotic evolution
Article says that horizontal gene transfer (HGT) is a major source of phenotypic innovation and a mechanism of niche adaptation in prokaryotes. Methods for detecting HGT can be classified into phylogenetic-based and parametric or composition-based approaches, so authors exploited the complementary strengths of both the approaches to construct a high confidence horizontal gene flow network. The scale-free horizontal gene flow network presented here provides new insights into modes of transfer for the exchange of genetic information and also illuminates differential gene flow across phyla.
Date:
November 30, 2022
Creator:
Sungupta, Soham & Azad, Rajeev K.
Object Type:
Article
System:
The UNT Digital Library
Three Component Cascade Reaction of Cyclohexanones, Aryl Amines, and Benzoylmethylene Malonates: Cooperative Enamine-Brønsted Acid Approach to Tetrahydroindoles
Article discusses how a three-component cascade reaction comprising cyclic ketones, arylamines, and benzoylmethylene malonates has been developed to access 4,5,6,7-tetrahydro-1H-indoles. Furthermore, the reaction was achieved through cooperative enamine-Brønsted catalysis in high yields with wide substrate scopes.
Date:
November 30, 2022
Creator:
Vasquez, Jose Cortes; Alharbi, Waad S.; Davis, Jacqkis; Moore, Alexia; Nesterov, Vladimir N.; Cundari, Thomas R., 1964- et al.
Object Type:
Article
System:
The UNT Digital Library
Manipulating plasma thyroid hormone levels alters development of endothermy and ventilation in nestling red-winged blackbirds
Authors of the article propose that thyroid hormones play an important role in regulating development of endothermy during the nestling period in altricial birds. Their data suggests plasma thyroid hormone levels play an active role in the systemic development of endothermic capacity and the development of ventilatory control.
Date:
November 29, 2022
Creator:
Sirsat, Tushar S.; Sirsat, Sarah K. G.; Price, Edwan R.; Pineda, Megan & Dzialowski, Edward M. (Edward Michael)
Object Type:
Article
System:
The UNT Digital Library
Prebiotic/probiotic supplementation resulted in reduced visceral fat and mRNA expression associated with adipose tissue inflammation, systemic inflammation, and chronic disease risk
Article describes how prebiotic/probiotic supplementation represents a viable option for addressing elevated systemic inflammation and chronic disease risk in overweight individuals. The key findings support that 90-day prebiotic/probiotic supplementation may be associated with reduced adipose tissue inflammation, reduced systemic inflammation, and reduced chronic disease risk.
Date:
November 28, 2022
Creator:
McFarlin, Brian K.; Tanner, Elizabeth A.; Hill, David W. & Vingren, Jakob L.
Object Type:
Article
System:
The UNT Digital Library
The complexities of proanthocyanidin biosynthesis and its regulation in plants
Article describes how proanthocyanidins (PAs) are natural flavan-3-ol polymers that contribute protection to plants under biotic and abiotic stress, benefits to human health, and bitterness and astringency to food products. This review extends the conventional understanding with recent findings that provide new insights to address lingering questions and focus strategies for manipulating PA traits in plants.
Date:
November 26, 2022
Creator:
Yu, Keji; Song, Yushuang; Lin, Jinxing & Dixon, R. A.
Object Type:
Article
System:
The UNT Digital Library
Lipid Droplets: Packing Hydrophobic Molecules Within the Aqueous Cytoplasm
Article discusses how lipid droplets, also known as oil bodies or lipid bodies, are plant organelles that compartmentalize neutral lipids as a hydrophobic matrix covered by proteins embedded in a phospholipid monolayer. The authors review the growing body of knowledge about lipid droplets in plant cells, describe the evolutionary similarity and divergence in their associated subcellular machinery, and point to gaps that deserve future attention.
Date:
November 22, 2022
Creator:
Guzha, Athanas; Whitehead, Payton; Ischebeck, Till & Chapman, Kent Dean
Object Type:
Article
System:
The UNT Digital Library