Latest content added for UNT Digital Library Searchhttps://digital2.library.unt.edu/search/?t=fulltext&fq=str_month%3A09_sep&sort=date_a2022-06-15T15:18:08-05:00UNT LibrariesThis is a custom feed for searching UNT Digital Library SearchActivation of an S6 Kinase From Human Placenta by Autophosphorylation2021-12-17T20:13:52-06:00https://digital.library.unt.edu/ark:/67531/metadc1871047/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1871047/"><img alt="Activation of an S6 Kinase From Human Placenta by Autophosphorylation" title="Activation of an S6 Kinase From Human Placenta by Autophosphorylation" src="https://digital.library.unt.edu/ark:/67531/metadc1871047/thumbnail/"/></a></p><p>Article describing a novel S6 kinase isolated from human placenta which autoactivates through autophosphorylation in vitro. The data supports the hypothesis that this previously uncharacterized S6 kinase belongs to a unique family of protein kinases which utilize autophosphorylation as part of their in vivo activation mechanism.</p>Activation of an S6/H4 Kinase (PAK 65) from Human Placenta by Intramolecular and Intermolecular Autophosphorylation2021-12-17T20:13:55-06:00https://digital.library.unt.edu/ark:/67531/metadc1871048/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1871048/"><img alt="Activation of an S6/H4 Kinase (PAK 65) from Human Placenta by Intramolecular and Intermolecular Autophosphorylation" title="Activation of an S6/H4 Kinase (PAK 65) from Human Placenta by Intramolecular and Intermolecular Autophosphorylation" src="https://digital.library.unt.edu/ark:/67531/metadc1871048/thumbnail/"/></a></p><p>Article proposing a model in which phosphorylation of sites 1 and 2 occurs sequentially. The model proposes that trypsin treatment of the inactive holoenzyme removes an inhibitory rac-binding domain which blocks MgATP access to the catalytic site. The pseudosubstrate domain at site 1 is autophosphorylated and subsequent bimolecular autophosphorylation at site 2 fully opens the catalytic site.</p>Unraveling Δ1-Pyrroline-5-Carboxylate-Proline Cycle in Plants by Uncoupled Expression of Proline Oxidation Enzymes2021-12-17T20:14:48-06:00https://digital.library.unt.edu/ark:/67531/metadc1871072/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1871072/"><img alt="Unraveling Δ1-Pyrroline-5-Carboxylate-Proline Cycle in Plants by Uncoupled Expression of Proline Oxidation Enzymes" title="Unraveling Δ1-Pyrroline-5-Carboxylate-Proline Cycle in Plants by Uncoupled Expression of Proline Oxidation Enzymes" src="https://digital.library.unt.edu/ark:/67531/metadc1871072/thumbnail/"/></a></p><p>Article showing that overexpression of MsProDH in tobacco and Arabidopsis or impairment of P5C oxidation in the Arabidopsis p5cdh mutant did not change the cellular Pro to P5C ratio under ambient and osmotic stress conditions, indicating that P5C excess was reduced to Pro in a mitochondrial-cytosolic cycle. Results show that normal oxidation of P5C to Glu by P5CDH is key to prevent P5C-Pro intensive cycling and avoid ROS production from electron run-off.</p>Existence and Nonexistence of Solutions for Sublinear Equations on Exterior Domains2018-06-15T22:41:44-05:00https://digital.library.unt.edu/ark:/67531/metadc1164557/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1164557/"><img alt="Existence and Nonexistence of Solutions for Sublinear Equations on Exterior Domains" title="Existence and Nonexistence of Solutions for Sublinear Equations on Exterior Domains" src="https://digital.library.unt.edu/ark:/67531/metadc1164557/thumbnail/"/></a></p><p>This article studies radial solutions of Δu + K(r)ƒ(u) = 0 on the exterior of the ball of radius R > 0, BR, centered at the origin in ℝN with u = 0 on @BR where ƒ is odd with ƒ < 0 on (0; β), ƒ > 0 on (β;∞),
f(u) ~ uᵖ with 0 < p < 1 for large u and K(r) ~ r⁻ᵅ for large r.</p>Commentary on “Uncover the Effect of Solvent and Temperature on Solid-Liquid Equilibrium Behavior of L-Norvaline”2018-02-28T18:41:07-06:00https://digital.library.unt.edu/ark:/67531/metadc1114897/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1114897/"><img alt="Commentary on “Uncover the Effect of Solvent and Temperature on Solid-Liquid Equilibrium Behavior of L-Norvaline”" title="Commentary on “Uncover the Effect of Solvent and Temperature on Solid-Liquid Equilibrium Behavior of L-Norvaline”" src="https://digital.library.unt.edu/ark:/67531/metadc1114897/thumbnail/"/></a></p><p>This article provides a commentary on several sets of reported curve-fit parameters for the Modified Apelblat model that do not correctly back-calculate the observed solubility behavior of L-norvaline in the binary aqueous-alcohol solvent mixtures.</p>Altered embryonic development in northern bobwhite quail (Colinus virginianus) induced by pre-incubation oscillatory thermal stresses mimicking global warming predictions2017-09-29T09:53:09-05:00https://digital.library.unt.edu/ark:/67531/metadc993946/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc993946/"><img alt="Altered embryonic development in northern bobwhite quail (Colinus virginianus) induced by pre-incubation oscillatory thermal stresses mimicking global warming predictions" title="Altered embryonic development in northern bobwhite quail (Colinus virginianus) induced by pre-incubation oscillatory thermal stresses mimicking global warming predictions" src="https://digital.library.unt.edu/ark:/67531/metadc993946/thumbnail/"/></a></p><p>This article describes the exposure of freshly laid bobwhite quail eggs to one of five thermal regimes during a 12 day pre-incubation period.</p>Computational design of environmental sensors for the potent opioid fentanyl2019-03-15T11:51:16-05:00https://digital.library.unt.edu/ark:/67531/metadc1459146/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1459146/"><img alt="Computational design of environmental sensors for the potent opioid fentanyl" title="Computational design of environmental sensors for the potent opioid fentanyl" src="https://digital.library.unt.edu/ark:/67531/metadc1459146/thumbnail/"/></a></p><p>This article describes the computational design of proteins that bind the potent analgesic fentanyl.</p>Critical Developmental Windows for Morphology and Hematology Revealed by Intermittent and Continuous Hypoxic Incubation in Embryos of Quail (Coturnix Coturnix)2017-09-29T09:53:09-05:00https://digital.library.unt.edu/ark:/67531/metadc993950/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc993950/"><img alt="Critical Developmental Windows for Morphology and Hematology Revealed by Intermittent and Continuous Hypoxic Incubation in Embryos of Quail (Coturnix Coturnix)" title="Critical Developmental Windows for Morphology and Hematology Revealed by Intermittent and Continuous Hypoxic Incubation in Embryos of Quail (Coturnix Coturnix)" src="https://digital.library.unt.edu/ark:/67531/metadc993950/thumbnail/"/></a></p><p>This article describes the exposure of quail embryos in the intact egg to hypoxia during "early" or "late" incubation for their entire 16-18 day incubation to determine critical windows for viability and growth.</p>Identification of bottlenecks in the accumulation of cyclic fatty acids in camelina seed oil2019-01-12T17:20:31-06:00https://digital.library.unt.edu/ark:/67531/metadc1404208/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1404208/"><img alt="Identification of bottlenecks in the accumulation of cyclic fatty acids in camelina seed oil" title="Identification of bottlenecks in the accumulation of cyclic fatty acids in camelina seed oil" src="https://digital.library.unt.edu/ark:/67531/metadc1404208/thumbnail/"/></a></p><p>This article proposes a model for the accumulation of substantial levels of cyclopropane fatty acids (CPA) in camelina, and discusses the differences between CPA accumulation in camelina and Arabidopsis.</p>Editorial: Advances in Plant-Hemipteran Interactions2019-03-15T11:51:16-05:00https://digital.library.unt.edu/ark:/67531/metadc1459165/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1459165/"><img alt="Editorial: Advances in Plant-Hemipteran Interactions" title="Editorial: Advances in Plant-Hemipteran Interactions" src="https://digital.library.unt.edu/ark:/67531/metadc1459165/thumbnail/"/></a></p><p>This editorial discusses sixteen manuscripts which address the physiology and molecular biology of plant-hemipteran interactions at different levels.</p>Brain Inflammation, Blood Brain Barrier dysfunction and Neuronal Synaptophysin Decrease after Inhalation Exposure to Titanium Dioxide Nano-aerosol in Aging Rats2017-10-26T15:36:53-05:00https://digital.library.unt.edu/ark:/67531/metadc1036594/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1036594/"><img alt="Brain Inflammation, Blood Brain Barrier dysfunction and Neuronal Synaptophysin Decrease after Inhalation Exposure to Titanium Dioxide Nano-aerosol in Aging Rats" title="Brain Inflammation, Blood Brain Barrier dysfunction and Neuronal Synaptophysin Decrease after Inhalation Exposure to Titanium Dioxide Nano-aerosol in Aging Rats" src="https://digital.library.unt.edu/ark:/67531/metadc1036594/thumbnail/"/></a></p><p>This article focuses on the consequences of TiO₂ distribution on the central nervous system and particularly on the blood-brain barrier functions.</p>High-redshift AGN in the Chandra Deep Fields: the obscured fraction and space density of the sub-L∗ population2018-08-08T08:27:24-05:00https://digital.library.unt.edu/ark:/67531/metadc1225784/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1225784/"><img alt="High-redshift AGN in the Chandra Deep Fields: the obscured fraction and space density of the sub-L∗ population" title="High-redshift AGN in the Chandra Deep Fields: the obscured fraction and space density of the sub-L∗ population" src="https://digital.library.unt.edu/ark:/67531/metadc1225784/thumbnail/"/></a></p><p>This article investigates the population of high-redshift (3≤z<6) active galactic nuclei (AGN) selected in the two deepest X-ray surveys, the 7 Ms Chandra Deep Field-South and 2 Ms Chandra Deep Field-North.</p>Plasmon coupled super- and sub- radiance from dye shells2020-08-03T15:07:04-05:00https://digital.library.unt.edu/ark:/67531/metadc1705575/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1705575/"><img alt="Plasmon coupled super- and sub- radiance from dye shells" title="Plasmon coupled super- and sub- radiance from dye shells" src="https://digital.library.unt.edu/ark:/67531/metadc1705575/thumbnail/"/></a></p><p>Article investigates cooperative spontaneous emission, theoretically and experimentally, for an ensemble of emitters coupled to a core-shell structure.</p>Reduced structural flexibility for an exonuclease deficient DNA polymerase III mutant2019-01-12T17:20:31-06:00https://digital.library.unt.edu/ark:/67531/metadc1404216/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1404216/"><img alt="Reduced structural flexibility for an exonuclease deficient DNA polymerase III mutant" title="Reduced structural flexibility for an exonuclease deficient DNA polymerase III mutant" src="https://digital.library.unt.edu/ark:/67531/metadc1404216/thumbnail/"/></a></p><p>This article reports on the dynamics of E coli DNA polymerase III proofreading in the presence of its processivity factor, the β₂-sliding clamp, at varying base pair termini using single-molecule FRET.</p>State of the world's raptors: Distributions, threats, and conservation recommendations2020-08-03T15:07:04-05:00https://digital.library.unt.edu/ark:/67531/metadc1705512/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1705512/"><img alt="State of the world's raptors: Distributions, threats, and conservation recommendations" title="State of the world's raptors: Distributions, threats, and conservation recommendations" src="https://digital.library.unt.edu/ark:/67531/metadc1705512/thumbnail/"/></a></p><p>Article exploring the International Union for the Conservation of Nature's Red List to examine the conservation status, distributions, threats, and conservation recommendations for all 557 raptor species.</p>Experimental and Computational Preference for Phosphine Regioselectivity and Stereoselective Tripodal Rotation in Hos₃(Co)₈(PPh₃)₂(μ-1,2-N,Cη-¹,ᴋ¹-C₇H₄NS)2018-11-28T17:21:18-06:00https://digital.library.unt.edu/ark:/67531/metadc1390618/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1390618/"><img alt="Experimental and Computational Preference for Phosphine Regioselectivity and Stereoselective Tripodal Rotation in Hos₃(Co)₈(PPh₃)₂(μ-1,2-N,Cη-¹,ᴋ¹-C₇H₄NS)" title="Experimental and Computational Preference for Phosphine Regioselectivity and Stereoselective Tripodal Rotation in Hos₃(Co)₈(PPh₃)₂(μ-1,2-N,Cη-¹,ᴋ¹-C₇H₄NS)" src="https://digital.library.unt.edu/ark:/67531/metadc1390618/thumbnail/"/></a></p><p>This article investigates the site preference for ligand substitution in the benzothiazolate-bridged cluster HOs₃(CO)₁₀(μ-1,2-N,Cη-¹,ᴋ¹-C₇H₄NS) using PPh₃.</p>GAW20: methods and strategies for the new frontiers of epigenetics and pharmacogenomics2020-08-03T15:07:04-05:00https://digital.library.unt.edu/ark:/67531/metadc1705436/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1705436/"><img alt="GAW20: methods and strategies for the new frontiers of epigenetics and pharmacogenomics" title="GAW20: methods and strategies for the new frontiers of epigenetics and pharmacogenomics" src="https://digital.library.unt.edu/ark:/67531/metadc1705436/thumbnail/"/></a></p><p>Article presents an overview of the data sets and the contributions analyzing data related to human lipid-related phenotypes, DNA methylation, and single-nucleotide markers in a study involving a pharmaceutical intervention.</p>A dynamic model of lignin biosynthesis in Brachypodium distachyon2020-08-03T15:07:04-05:00https://digital.library.unt.edu/ark:/67531/metadc1705456/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1705456/"><img alt="A dynamic model of lignin biosynthesis in Brachypodium distachyon" title="A dynamic model of lignin biosynthesis in Brachypodium distachyon" src="https://digital.library.unt.edu/ark:/67531/metadc1705456/thumbnail/"/></a></p><p>Article proposes a dynamic mathematical model that integrates various datasets and other information regarding the lignin pathway in Brachypodium distachyon and permits explanations for some counterintuitive observations.</p>A dynamic model of lignin biosynthesis in Brachypodium distachyon2018-10-12T10:49:52-05:00https://digital.library.unt.edu/ark:/67531/metadc1281825/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1281825/"><img alt="A dynamic model of lignin biosynthesis in Brachypodium distachyon" title="A dynamic model of lignin biosynthesis in Brachypodium distachyon" src="https://digital.library.unt.edu/ark:/67531/metadc1281825/thumbnail/"/></a></p><p>This article proposes a dynamic mathematical model that integrates various datasets and other information regarding the lignin pathway in Brachypodium distachyon and permits explanations for some counterintuitive observations.</p>Convective oxygen transport during development in embryos of the snapping turtle Chelydra serpentina2020-08-03T15:07:04-05:00https://digital.library.unt.edu/ark:/67531/metadc1705573/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1705573/"><img alt="Convective oxygen transport during development in embryos of the snapping turtle Chelydra serpentina" title="Convective oxygen transport during development in embryos of the snapping turtle Chelydra serpentina" src="https://digital.library.unt.edu/ark:/67531/metadc1705573/thumbnail/"/></a></p><p>This article describes a study investigating the maturation of convective oxygen transport in embryos of the snapping turtle (Chelydra serpentina). Measurements included: mass, oxygen consumption, heart rate, blood oxygen content and affinity and blood flow distribution at 50%, 70% and 90% of the incubation period.</p>Application of Various Normalization Methods for Microscale Analysis of Tissues Using Direct Analyte Probed Nanoextraction2020-08-03T15:07:04-05:00https://digital.library.unt.edu/ark:/67531/metadc1705508/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1705508/"><img alt="Application of Various Normalization Methods for Microscale Analysis of Tissues Using Direct Analyte Probed Nanoextraction" title="Application of Various Normalization Methods for Microscale Analysis of Tissues Using Direct Analyte Probed Nanoextraction" src="https://digital.library.unt.edu/ark:/67531/metadc1705508/thumbnail/"/></a></p><p>Article describes a study where various normalization techniques were investigated in order to improve the quantitative capabilities of direct analyte probed nanoextraction (DAPNe).</p>Parametric nondifferentiable multiobjective fractional programming under (b;Ψ; Φ; ρ)-univexity2019-01-12T17:20:31-06:00https://digital.library.unt.edu/ark:/67531/metadc1404229/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1404229/"><img alt="Parametric nondifferentiable multiobjective fractional programming under (b;Ψ; Φ; ρ)-univexity" title="Parametric nondifferentiable multiobjective fractional programming under (b;Ψ; Φ; ρ)-univexity" src="https://digital.library.unt.edu/ark:/67531/metadc1404229/thumbnail/"/></a></p><p>This article is concerned with optimality conditions and duality results for nondifferentiable multi-objective fractional programming problems.</p>An “ideal lignin” facilitates full biomass utilization2018-10-31T18:58:38-05:00https://digital.library.unt.edu/ark:/67531/metadc1310121/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1310121/"><img alt="An “ideal lignin” facilitates full biomass utilization" title="An “ideal lignin” facilitates full biomass utilization" src="https://digital.library.unt.edu/ark:/67531/metadc1310121/thumbnail/"/></a></p><p>This article describes the ideal nature of the Catechyl lignin (C-lignin) via a revised compositional characterization of the vanilla seed coat fiber, new features of the C-lignin's reactivity and stability, and successful attempts at converting it to monomers in near-quantitative yields.</p>Parental stressor exposure simultaneously conveys both adaptive and maladaptive larval phenotypes through epigenetic inheritance in the zebrafish (Danio rerio)2022-06-15T15:13:31-05:00https://digital.library.unt.edu/ark:/67531/metadc1944186/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1944186/"><img alt="Parental stressor exposure simultaneously conveys both adaptive and maladaptive larval phenotypes through epigenetic inheritance in the zebrafish (Danio rerio)" title="Parental stressor exposure simultaneously conveys both adaptive and maladaptive larval phenotypes through epigenetic inheritance in the zebrafish (Danio rerio)" src="https://digital.library.unt.edu/ark:/67531/metadc1944186/thumbnail/"/></a></p><p>This article is a study using crude oil as an example of an environmental stressor in adult zebrafish. The offspring obtained were then assessed for transgenerational epigenetic transfer of oil-induced phenotypes. The authors conclude that epigenetic transgenerational inheritance can lead to an immediate and simultaneous inheritance of both beneficial and maladaptive traits in a large proportion of the F1 larvae. The adaptive responses may help fish populations survive when facing transient environmental stressors.</p>Structure and Electronic Properties of InSb Nanowires Grown in Flexible Polycarbonate Membranes2020-05-11T15:41:16-05:00https://digital.library.unt.edu/ark:/67531/metadc1638275/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1638275/"><img alt="Structure and Electronic Properties of InSb Nanowires Grown in Flexible Polycarbonate Membranes" title="Structure and Electronic Properties of InSb Nanowires Grown in Flexible Polycarbonate Membranes" src="https://digital.library.unt.edu/ark:/67531/metadc1638275/thumbnail/"/></a></p><p>The article explores the various factors that affect nucleation and nanowire growth. A dense array of vertically aligned indium antimonide (InSb) nanowires with high aspect ratio were grown in the pores of a track-etched polycarbonate membrane via a one-step electrochemical method.</p>Revisiting surface core-level shifts for ionic compounds2022-06-15T15:18:08-05:00https://digital.library.unt.edu/ark:/67531/metadc1944158/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1944158/"><img alt="Revisiting surface core-level shifts for ionic compounds" title="Revisiting surface core-level shifts for ionic compounds" src="https://digital.library.unt.edu/ark:/67531/metadc1944158/thumbnail/"/></a></p><p>Article establishing a theoretical method which is able to relate the binding energy shifts to the electronic structure of a material. In order to establish such a methodology, the CaO(100) surface to bulk core-level binding energy shifts are studied with Hartree-Fock and density-functional theory methods using both cluster and periodic slab models.</p>Atomic layer deposition of h-BN(0001) multilayers on Ni(111) and chemical vapor deposition of graphene on h-BN(0001)/Ni(111)2022-06-15T15:16:20-05:00https://digital.library.unt.edu/ark:/67531/metadc1944122/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1944122/"><img alt="Atomic layer deposition of h-BN(0001) multilayers on Ni(111) and chemical vapor deposition of graphene on h-BN(0001)/Ni(111)" title="Atomic layer deposition of h-BN(0001) multilayers on Ni(111) and chemical vapor deposition of graphene on h-BN(0001)/Ni(111)" src="https://digital.library.unt.edu/ark:/67531/metadc1944122/thumbnail/"/></a></p><p>Article studying atomic layer deposition. In situ direct, epitaxial growth of multilayers of hexagonal boron nitride (h-BN) and graphene without physical transfer is of significant interest for the scalable production of graphene/h-BN heterostructures for device applications. Deposition on magnetic substrates is of particular interest for spin tunneling applications. X-ray photoelectron spectroscopy and low energy electron diffraction demonstrate epitaxial atomic-layer deposition (ALD) of multilayer h-BN(0001) on Ni(111) and subsequent deposition of azimuthally-aligned multilayer graphene on h-BN(0001)/Ni(111) by chemical vapor deposition. Boron nitride ALD was accomplished with alternating cycles of BCl₃/NH₃ at a 600 K substrate temperature, and subsequent annealing in ultrahigh vacuum. Subsequent deposition of graphene was achieved by chemical vapor deposition using ethylene (CH₂CH₂) at 1000 K.</p>A Combined Metabolomics and Fluxomics Analysis Identifies Steps Limiting Oil Synthesis in Maize Embryos2022-06-15T15:13:46-05:00https://digital.library.unt.edu/ark:/67531/metadc1944194/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1944194/"><img alt="A Combined Metabolomics and Fluxomics Analysis Identifies Steps Limiting Oil Synthesis in Maize Embryos" title="A Combined Metabolomics and Fluxomics Analysis Identifies Steps Limiting Oil Synthesis in Maize Embryos" src="https://digital.library.unt.edu/ark:/67531/metadc1944194/thumbnail/"/></a></p><p>Article comparing the metabolism of embryos from two different maize lines, Alex and LH59, to test the hypothesis that directly changing their carbon metabolism may be the key to increasing oil content in maize kernels without affecting yield.</p>Artificially structured boundary plasma trap2020-09-21T11:03:29-05:00https://digital.library.unt.edu/ark:/67531/metadc1707901/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1707901/"><img alt="Artificially structured boundary plasma trap" title="Artificially structured boundary plasma trap" src="https://digital.library.unt.edu/ark:/67531/metadc1707901/thumbnail/"/></a></p><p>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.</p>Existence of Infinitely Many Solutions for Singular Semilinear Problems on Exterior Domains2022-06-15T15:13:04-05:00https://digital.library.unt.edu/ark:/67531/metadc1944180/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1944180/"><img alt="Existence of Infinitely Many Solutions for Singular Semilinear Problems on Exterior Domains" title="Existence of Infinitely Many Solutions for Singular Semilinear Problems on Exterior Domains" src="https://digital.library.unt.edu/ark:/67531/metadc1944180/thumbnail/"/></a></p><p>Article proving the existence of infinitely many radial solutions of ∆𝓊+𝐾(𝓇) ƒ (𝓊) = 0 on the exterior of the ball of radius R > 0, BR, centered at the origin in ℝᴺ with u = 0 on ∂BR and lim/r→∞ 𝓊(𝓇) = 0 where N > 2, f is odd with f < 0 on (0, β), f > 0 on (β, ∞), f is superlinear for large u, ƒ(𝓊) ∼ −1/(|𝓊|𝘲⁻¹𝓊) with 0 < q < 1 for small u, and 0 < 𝐾(𝓇) ≤ 𝐾₁/r∝ with 𝑁 + q(𝑁 − 2) < ∝ < 2(𝑁− 1) for large r.</p>Mechanical Properties of Chemically Modified Clay2020-06-16T10:27:33-05:00https://digital.library.unt.edu/ark:/67531/metadc1703653/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1703653/"><img alt="Mechanical Properties of Chemically Modified Clay" title="Mechanical Properties of Chemically Modified Clay" src="https://digital.library.unt.edu/ark:/67531/metadc1703653/thumbnail/"/></a></p><p>Article uses first principles methods to compare the mechanical properties of lizardite Mg3(Si2O5)(OH)4, a polymorph of serpentine family, with the new compounds derived by substituting Mg ions with isovalent elements from different chemical groups.</p>The osmorespiratory compromise in the euryhaline killifish: water regulation during hypoxia2022-06-15T15:13:24-05:00https://digital.library.unt.edu/ark:/67531/metadc1944183/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1944183/"><img alt="The osmorespiratory compromise in the euryhaline killifish: water regulation during hypoxia" title="The osmorespiratory compromise in the euryhaline killifish: water regulation during hypoxia" src="https://digital.library.unt.edu/ark:/67531/metadc1944183/thumbnail/"/></a></p><p>Article studying water regulation during hypoxia in euryhaline killifish.</p>The Stability of Metallic MoS₂ Nanosheets and Their Property Change by Annealing2020-05-11T15:41:16-05:00https://digital.library.unt.edu/ark:/67531/metadc1638267/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1638267/"><img alt="The Stability of Metallic MoS₂ Nanosheets and Their Property Change by Annealing" title="The Stability of Metallic MoS₂ Nanosheets and Their Property Change by Annealing" src="https://digital.library.unt.edu/ark:/67531/metadc1638267/thumbnail/"/></a></p><p>This article focuses on the effects of mild annealing on the structural and physical properties of the MoS₂ by heating the nanosheets in air and vacuum up to 350 °C. It was found that the annealing leads to an increase in resistivity for the nanosheets by 3 orders of magnitude, the appearance of two absorption bands in the visible range, and a hydrophilic to hydrophobic change in the surface wetting properties. Overall, this study provides another way to control the electrical, optical, and surface properties of MoS₂ nanosheets for fulfilling the needs of various applications.</p>Improved Campephiline detection: An experiment conducted with the Magellanic Woodpecker2020-06-16T10:27:33-05:00https://digital.library.unt.edu/ark:/67531/metadc1703587/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1703587/"><img alt="Improved Campephiline detection: An experiment conducted with the Magellanic Woodpecker" title="Improved Campephiline detection: An experiment conducted with the Magellanic Woodpecker" src="https://digital.library.unt.edu/ark:/67531/metadc1703587/thumbnail/"/></a></p><p>Article describes a study which tried to determine which of three methods (useing a drumming device to simulate a double‐knock (i.e., territorial acoustical signal), broadcasting a territorial call, or passively listening) best results in a detection of Magellanic Woodpeckers (Campephilus magellanicus ), and if weather variables influence detection probability.</p>Deep Minima and Vortices for Positronium Formation in Low-Energy Positron-Hydrogen Collisions2022-06-15T15:13:00-05:00https://digital.library.unt.edu/ark:/67531/metadc1944175/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1944175/"><img alt="Deep Minima and Vortices for Positronium Formation in Low-Energy Positron-Hydrogen Collisions" title="Deep Minima and Vortices for Positronium Formation in Low-Energy Positron-Hydrogen Collisions" src="https://digital.library.unt.edu/ark:/67531/metadc1944175/thumbnail/"/></a></p><p>Article using the two-channel Kohn inverse and Kohn variational methods to investigate ground-state positronium (Ps) formation in positron-hydrogen collisions in the Ore gap. This is the Accepted Manuscript Version of the article.</p>Tunable Hybrid Phononic Crystal Lens Using Thermo-Acoustic Polymers2020-06-16T10:27:33-05:00https://digital.library.unt.edu/ark:/67531/metadc1703594/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1703594/"><img alt="Tunable Hybrid Phononic Crystal Lens Using Thermo-Acoustic Polymers" title="Tunable Hybrid Phononic Crystal Lens Using Thermo-Acoustic Polymers" src="https://digital.library.unt.edu/ark:/67531/metadc1703594/thumbnail/"/></a></p><p>Article describes a study where a tunable hybrid solid ultrasonic lens is realized by combining a PnC lens with PVA-PNIPAm thermoacoustic hydrogel to modify the transmission and dispersion properties of transient acoustic waves.</p>Long-range nonspreading propagation of sound beam through periodic layered structure2022-05-27T06:01:09-05:00https://digital.library.unt.edu/ark:/67531/metadc1934206/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1934206/"><img alt="Long-range nonspreading propagation of sound beam through periodic layered structure" title="Long-range nonspreading propagation of sound beam through periodic layered structure" src="https://digital.library.unt.edu/ark:/67531/metadc1934206/thumbnail/"/></a></p><p>Article analyzing dispersion of sound in a solid-fluid layered structure and found a flex point on the isofrequency curve where D vanishes for given direction of propagation and frequency. Nonspreading propagation is experimentally observed in a water steel lattice of 75 periods (~1 meter long) and occurs in the regime of anomalous dispersion and strong acoustic anisotropy when the effective mass along periodicity is close to zero. Under these conditions the incoming beam experiences negative refraction of phase velocity leading to backward wave propagation. The observed effect is explained using a complete set of dynamical equations and our effective medium theory.</p>Metallic nanoparticle production and exposure/deposition system for toxicological research applications using zebrafish2022-05-27T05:48:53-05:00https://digital.library.unt.edu/ark:/67531/metadc1934045/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1934045/"><img alt="Metallic nanoparticle production and exposure/deposition system for toxicological research applications using zebrafish" title="Metallic nanoparticle production and exposure/deposition system for toxicological research applications using zebrafish" src="https://digital.library.unt.edu/ark:/67531/metadc1934045/thumbnail/"/></a></p><p>Article presents a method that provides a novel way to synthesize NPs and expose biological organisms for various toxicological analysis.</p>Au3-to-Ag3 coordinate-covalent bonding and other supramolecular interactions with covalent bonding strength2022-05-27T05:54:51-05:00https://digital.library.unt.edu/ark:/67531/metadc1934126/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1934126/"><img alt="Au3-to-Ag3 coordinate-covalent bonding and other supramolecular interactions with covalent bonding strength" title="Au3-to-Ag3 coordinate-covalent bonding and other supramolecular interactions with covalent bonding strength" src="https://digital.library.unt.edu/ark:/67531/metadc1934126/thumbnail/"/></a></p><p>Article describes an efficient strategy for designing charge-transfer complexes using coinage metal cyclic trinuclear complexes (CTCs).</p>Formal oxo- and aza-[3 + 2] reactions of α-enaminones and quinones: a double divergent process and the roles of chiral phosphoric acid and molecular sieves2022-05-27T05:54:47-05:00https://digital.library.unt.edu/ark:/67531/metadc1934125/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1934125/"><img alt="Formal oxo- and aza-[3 + 2] reactions of α-enaminones and quinones: a double divergent process and the roles of chiral phosphoric acid and molecular sieves" title="Formal oxo- and aza-[3 + 2] reactions of α-enaminones and quinones: a double divergent process and the roles of chiral phosphoric acid and molecular sieves" src="https://digital.library.unt.edu/ark:/67531/metadc1934125/thumbnail/"/></a></p><p>Article develops a double divergent process for the reaction of α-enaminones with quinones through facile manipulation of catalyst and additive, leading to structurally completely different products.</p>Prostasin and hepatocyte growth factor B in factor VIIa generation: Serine protease knockdowns in zebrafish2022-05-27T05:53:15-05:00https://digital.library.unt.edu/ark:/67531/metadc1934103/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1934103/"><img alt="Prostasin and hepatocyte growth factor B in factor VIIa generation: Serine protease knockdowns in zebrafish" title="Prostasin and hepatocyte growth factor B in factor VIIa generation: Serine protease knockdowns in zebrafish" src="https://digital.library.unt.edu/ark:/67531/metadc1934103/thumbnail/"/></a></p><p>Article aims to identify other proteases that may activate FVII using zebrafish as a model.</p>Anisotropic Optical Properties of 2D Silicon Telluride2022-05-27T05:53:46-05:00https://digital.library.unt.edu/ark:/67531/metadc1934112/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1934112/"><img alt="Anisotropic Optical Properties of 2D Silicon Telluride" title="Anisotropic Optical Properties of 2D Silicon Telluride" src="https://digital.library.unt.edu/ark:/67531/metadc1934112/thumbnail/"/></a></p><p>Article reports an ab initio computational study of the optical dielectric properties of Silicon telluride (Si2Te3) using the GW approximation and the Bethe-Salpeter equation (BSE).</p>Complex Periodicity and Synchronization2022-05-27T05:55:21-05:00https://digital.library.unt.edu/ark:/67531/metadc1934134/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1934134/"><img alt="Complex Periodicity and Synchronization" title="Complex Periodicity and Synchronization" src="https://digital.library.unt.edu/ark:/67531/metadc1934134/thumbnail/"/></a></p><p>Article explores experimental walking synchronization and complexity restoration. The main goal is to establish a physiological foundation of these important results based on the recent advances on the dynamics of the brain, interpreted as a system at criticality.</p>Collaborative Research: A Systematic and Comprehensive Study of Black Hole-Driven Turbulence in Massive Galactic Systems2021-08-26T13:24:10-05:00https://digital.library.unt.edu/ark:/67531/metadc1833479/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1833479/"><img alt="Collaborative Research: A Systematic and Comprehensive Study of Black Hole-Driven Turbulence in Massive Galactic Systems" title="Collaborative Research: A Systematic and Comprehensive Study of Black Hole-Driven Turbulence in Massive Galactic Systems" src="https://digital.library.unt.edu/ark:/67531/metadc1833479/thumbnail/"/></a></p><p>Data management plan for the grant, "Collaborative Research: A Systematic and Comprehensive Study of Black Hole-Driven Turbulence in Massive Galactic Systems." This research team has developed a technique to measure gas turbulence in systems hosting giant central black holes and will directly evaluate the viability of this mechanism using a large sample of galaxies. This project will deliver a more complete view of the “feedback” provided by accreting SMBHs, leading to a better understanding of the black hole-host galaxy relation. More specifically, it will directly probe the energetics of the intra-cluster, circum-galactic, and interstellar media of massive early-type galaxies.</p>Encapsulated perovskite in NiO nanotube for topological meta-photonic devices2021-08-12T07:41:15-05:00https://digital.library.unt.edu/ark:/67531/metadc1832875/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1832875/"><img alt="Encapsulated perovskite in NiO nanotube for topological meta-photonic devices" title="Encapsulated perovskite in NiO nanotube for topological meta-photonic devices" src="https://digital.library.unt.edu/ark:/67531/metadc1832875/thumbnail/"/></a></p><p>Data management plan for the grant, "Encapsulated perovskite in NiO nanotube for topological meta-photonic devices." Research studying meta-photonic devices with high absorption and topological photonic devices using encapsulated perovskites in NiO nanotubes. The goal is to achieve high-efficiency solar cells and electrically pumped laser in perovskite/NiO nanotubes patterned in the graded photonic super-crystal. The success of this project will lead to high-efficiency integrated lasers and solar cell devices. It also enhances the abilities in the education arena by enriching program offerings in nanotechnology, clean-energy, and photonics technology.</p>IRES Track II - Cape Horn ASIs: Climate change and disease ecology at the southern end of the Americas2021-06-28T10:11:37-05:00https://digital.library.unt.edu/ark:/67531/metadc1818406/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1818406/"><img alt="IRES Track II - Cape Horn ASIs: Climate change and disease ecology at the southern end of the Americas" title="IRES Track II - Cape Horn ASIs: Climate change and disease ecology at the southern end of the Americas" src="https://digital.library.unt.edu/ark:/67531/metadc1818406/thumbnail/"/></a></p><p>Data management plan for the grant "IRES Track II - Cape Horn ASIs: Climate change and disease ecology at the southern end of the Americas." Research giving students the opportunity to be trained in quantitative experimental design and work as part of a multinational research collaboration to study infectious disease emergence in one of the few remaining pristine places on Earth. The Cape Horn Biosphere Reserve (CHBR) off the southern tip of South America protects pristine ecosystem is perfect for this type of graduate student training. The CHBR is part of the sub-Antarctic Magellanic ecoregion, which is globally significant because it houses the worlds southernmost forest biome, contains numerous endemic species, is remote, and is relatively free of anthropogenic impacts. The research questions themselves will be flexible, but organized thematically. Specifically, this IRES Track-II will focus on the merging molecular genetic analysis using a mobile next generation sequencing lab with mist netting and arthropod trapping to investigate the impacts of wildlife disease on local biodiversity and community structure. Secondarily, eDNA and traditional wildlife disease monitoring approaches will be applied to understand the potential for zoonosis and understanding ecological factors that contribute to, or inhibit, zoonosis. Resultantly, participation in this program will help train the next generation of scientists with the skills needed to make meaningful contributions to the study of ecology, conservation, and wildlife disease ecology.</p>Advanced modeling of materials with PAOFLOW 2.0: New features and software design2021-09-22T14:33:22-05:00https://digital.library.unt.edu/ark:/67531/metadc1838911/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1838911/"><img alt="Advanced modeling of materials with PAOFLOW 2.0: New features and software design" title="Advanced modeling of materials with PAOFLOW 2.0: New features and software design" src="https://digital.library.unt.edu/ark:/67531/metadc1838911/thumbnail/"/></a></p><p>This article describes the recent re-design of the code and the new features and improvements in performance of PAOFLOW, a software tool that constructs tight-binding Hamiltonians from self-consistent electronic wavefunctions by projecting onto a set of atomic orbitals.</p>A gene-editing/complementation strategy for tissue-specific lignin reduction while preserving biomass yield2021-09-22T14:33:00-05:00https://digital.library.unt.edu/ark:/67531/metadc1838901/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1838901/"><img alt="A gene-editing/complementation strategy for tissue-specific lignin reduction while preserving biomass yield" title="A gene-editing/complementation strategy for tissue-specific lignin reduction while preserving biomass yield" src="https://digital.library.unt.edu/ark:/67531/metadc1838901/thumbnail/"/></a></p><p>This article develops a method, using a single DNA construct that uses CRISPR–Cas9 gene editing to knock-out expression of an endogenous gene of lignin monomer biosynthesis while at the same time expressing a modified version of the gene’s open reading frame that escapes cutting by the Cas9 system and complements the introduced mutation in a tissue-specific manner. This method is applicable to any plant species in which transformation and gene editing are feasible and validated vessel-specific promoters are available.</p>Developmental programming of DNA methylation and gene expression patterns is associated with extreme cardiovascular tolerance to anoxia in the common snapping turtle2021-09-22T14:33:44-05:00https://digital.library.unt.edu/ark:/67531/metadc1838933/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1838933/"><img alt="Developmental programming of DNA methylation and gene expression patterns is associated with extreme cardiovascular tolerance to anoxia in the common snapping turtle" title="Developmental programming of DNA methylation and gene expression patterns is associated with extreme cardiovascular tolerance to anoxia in the common snapping turtle" src="https://digital.library.unt.edu/ark:/67531/metadc1838933/thumbnail/"/></a></p><p>This article explores DNA methylation's role in the regulation of gene expression in reptiles. Results show that embryonic hypoxia programs DNA methylation and gene expression patterns and that these changes are associated with enhanced cardiac anoxia tolerance in snapping turtles later in life.</p>Event-Driven Deep Learning for Edge Intelligence (EDL-EI)2021-09-22T14:34:04-05:00https://digital.library.unt.edu/ark:/67531/metadc1838949/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1838949/"><img alt="Event-Driven Deep Learning for Edge Intelligence (EDL-EI)" title="Event-Driven Deep Learning for Edge Intelligence (EDL-EI)" src="https://digital.library.unt.edu/ark:/67531/metadc1838949/thumbnail/"/></a></p><p>Article on deep-learning framework for edge intelligence EDL-EI (event-driven deep learning for edge intelligence). To verify the proposed framework, the authors include a case study of air-quality scenarios based for the most polluted cities in South Korea and China.</p>