States

138 Matching Results

Results open in a new window/tab.

Sub-Diffraction-Limit Imaging System with two Interfacing Hyperbolic Metamaterials (open access)

Sub-Diffraction-Limit Imaging System with two Interfacing Hyperbolic Metamaterials

Article demonstrating that a system of two interfacing hyperbolic metamaterials may be used for direct subwavelength imaging in the visible range.
Date: October 27, 2021
Creator: Bronnikov, Kirill; Arriaga, J.; Krokhin, Arkadii A. & Drachev, Vladimir P.
Object Type: Article
System: The UNT Digital Library
A Miniature Permanent Magnet Assembly with Localized and Uniform Field with an Application to Optical Pumping of Helium (open access)

A Miniature Permanent Magnet Assembly with Localized and Uniform Field with an Application to Optical Pumping of Helium

Article using simulations and experimental measurements to design, build, and test a compact and uniform magnetic field source and then apply it to the optical pumping of atomic helium.
Date: September 24, 2021
Creator: Cameron, Garnet; Cuevas, Jonathan; Pound, Jeffrey Jr. & Shiner, David
Object Type: Article
System: The UNT Digital Library
Trypsin induces an aversive response in zebrafish by PAR2 activation in keratinocytes (open access)

Trypsin induces an aversive response in zebrafish by PAR2 activation in keratinocytes

Article using zebrafish as a model and identifies that trypsin induces an aversive response in zebrafish larvae and adult zebrafish. Results show that the trypsin activates PAR2 on keratinocytes signaling the brain, and this pathway of trypsin-induced escape response will provide a unique communication mechanism in zebrafish.
Date: October 8, 2021
Creator: Alsrhani, Abdullah; Raman, Revathi & Jagadeeswaran, Pudur
Object Type: Article
System: The UNT Digital Library
Revision and Extension of a Generally Applicable Group-Additivity Method for the Calculation of the Standard Heat of Combustion and Formation of Organic Molecules (open access)

Revision and Extension of a Generally Applicable Group-Additivity Method for the Calculation of the Standard Heat of Combustion and Formation of Organic Molecules

Article presenting the calculation of the heats of combustion ΔH°c and formation ΔH°f of organic molecules at standard conditions using a commonly applicable computer algorithm based on the group-additivity method. This work is a continuation and extension of an earlier publication.
Date: October 10, 2021
Creator: Naef, Rudolf & Acree, William E. (William Eugene)
Object Type: Article
System: The UNT Digital Library
Survival, Growth, and Development in the Early Stages of the Tropical Gar Atractosteus tropicus: Developmental Critical Windows and the Influence of Temperature, Salinity, and Oxygen Availability (open access)

Survival, Growth, and Development in the Early Stages of the Tropical Gar Atractosteus tropicus: Developmental Critical Windows and the Influence of Temperature, Salinity, and Oxygen Availability

This article uses embryos and larvae of Atractosteus tropicus as a model to study fish survival, growth, and development as a function of temperature, salinity, and air saturation during developmental periods. Results suggest identifiable critical windows of development in the early ontogeny of A. tropicus and contribute to the knowledge of fish larval ecology and the interactions of individuals × stressors × time of exposure.
Date: February 12, 2021
Creator: Martínez, Gill; Peña, Emyr; Martínez, Rafael; Camarillo, Susana; Burggren, Warren W. & Álvarez, Alfonso
Object Type: Article
System: The UNT Digital Library
The mitochondrial localized CISD-3.1/CISD-3.2 proteins are required to maintain normal germline structure and function in Caenorhabditis elegans (open access)

The mitochondrial localized CISD-3.1/CISD-3.2 proteins are required to maintain normal germline structure and function in Caenorhabditis elegans

Article isolating the cisd-3.2(pnIs68) mutant that resulted in physiological and fitness defects including germline abnormalities that are associated with abnormal stem cell niche and disrupted formation of bivalent chromosomes. Results further support the idea that the CISD protein family is required for mitochondrial function that supports important functions in animals including overall fitness and germline viability.
Date: February 5, 2021
Creator: King, Skylar D.; Gray, Chipo F.; Song, Luhua; Mittler, Ron & Padilla, Pamela A.
Object Type: Article
System: The UNT Digital Library
Turning turtle: scaling relationships and self-righting ability in Chelydra serpentina (open access)

Turning turtle: scaling relationships and self-righting ability in Chelydra serpentina

Article investigating how shell morphology, neck length and self-righting biomechanics scale with body mass during ontogeny in Chelydra serpentina, which uses neck-powered self-righting.
Date: March 3, 2021
Creator: Ruhr, Ilan M.; Rose, Kayleigh A. R.; Sellers, William I.; Crossley, Dane A., II & Codd, Jonathan R.
Object Type: Article
System: The UNT Digital Library
A cytoskeletal function for PBRM1 reading methylated microtubules (open access)

A cytoskeletal function for PBRM1 reading methylated microtubules

This article shows that that the coordinated read-write activity of the epigenetic machinery extends to the cytoskeleton, with PBRM1 in the PBAF chromatin remodeling complex reading microtubule methyl marks written by the SETD2 histone methyltransferase. This article opens a previously unknown window into how chromatin remodeler defects can drive disease via both epigenetic and cytoskeletal dysfunction.
Date: April 2, 2021
Creator: Karki, Menuka; Jangid, Rahul K.; Anish, Ramakrishnan; Seervai, Riyad N. H.; Bertocchio, Jean-Phillipe; Hotta, Takashi et al.
Object Type: Article
System: The UNT Digital Library
Structural Modeling and in planta Complementation Studies Link Mutated Residues of the Medicago truncatula Nitrate Transporter NPF1.7 to Functionality in Root Nodules (open access)

Structural Modeling and in planta Complementation Studies Link Mutated Residues of the Medicago truncatula Nitrate Transporter NPF1.7 to Functionality in Root Nodules

This article combines in silico structural predictions with in planta complementation of the severely defective mtnip-1 mutant plants to understand the role of a series of distinct amino acids in the transporter’s function. The findings add to the knowledge of the mechanism of alternative conformational changes as well as symport transport in NPFs and enhance knowledge of the mechanisms for nitrate signaling.
Date: July 1, 2021
Creator: Yu, Yao-Chuan; Dickstein, Rebecca & Longo, Antonella
Object Type: Article
System: The UNT Digital Library
Metal Organic Frameworks Containing Frustrated Lewis Pairs for Hydrogen Storage at Ambient Temperature (open access)

Metal Organic Frameworks Containing Frustrated Lewis Pairs for Hydrogen Storage at Ambient Temperature

Data Management Plan for the research project: Metal Organic Frameworks Containing Frustrated Lewis Pairs for Hydrogen Storage at Ambient Temperature. Research to design, synthesize, and characterize novel sorbent materials for hydrogen storage. The materials are based on a Metal-Organic Framework and incorporate Frustrated Lewis Pairs (FLP-MOF). The project seeks to optimize the hydrogen storage capacity of the FLP-MOF systems at ambient temperature and under high pressure.
Date: 2021-07-01/2024-06-30
Creator: Ma, Shengqian
Object Type: Text
System: The UNT Digital Library
Descriptive Complexity in Cantor Series (open access)

Descriptive Complexity in Cantor Series

Article discusses how a Cantor series expansion for a real number x with respect to a basic sequence Q=(q), where qi≥2, is a generalization of the base b expansion to an infinite sequence of bases. The authors show that for any basic sequence the set of distribution normal numbers is Π03-complete, and if Q is 1-divergent then the sets of normal and ratio normal numbers are Π03-complete.
Date: September 27, 2021
Creator: Airey, Dylan; Jackson, Steve & Mance, Bill
Object Type: Article
System: The UNT Digital Library
Spatial and temporal localization of SPIRRIG and WAVE/SCAR reveal roles for these proteins in actin-mediated root hair development (open access)

Spatial and temporal localization of SPIRRIG and WAVE/SCAR reveal roles for these proteins in actin-mediated root hair development

Article shows that SPIRRIG (SPI), a beige and Chediak Higashi domain-containing protein involved in membrane trafficking, and BRK1 and SCAR2, subunits of the WAVE/SCAR (W/SC) actin nucleating promoting complex, display polarized localizations in Arabidopsis thaliana root hairs during distinct developmental stages. Authors' work uncovers a role for SPI in facilitating actin-dependent root hair development in Arabidopsis through pathways that might intersect with W/SC.
Date: April 20, 2021
Creator: Chin, Sabrina; Kwon, Taegun; Khan, Bibi Rafeiza; Sparks, J. Alan; Mallery, Eileen L.; Szymanski, Daniel B. et al.
Object Type: Article
System: The UNT Digital Library
Acetaldehyde oxidation at elevated pressure (open access)

Acetaldehyde oxidation at elevated pressure

A detailed chemical kinetic model for oxidation of CH3CHO at intermediate to high temperature and elevated pressure has been developed and evaluated by comparing predictions to novel high-pressure flow reactor experiments as well as shock tube ignition delay measurements and jet-stirred reactor data from literature. The flow reactor experiments were conducted with a slightly lean CH3CHO/O2 mixture highly diluted in N2 at 600–900 K and pressures of 25 and 100 bar. This is the accepted manuscript version of the published article.
Date: April 10, 2021
Creator: Hashemi, Hamid; Christensen, Jakob M.; Marshall, Paul & Glarborg, Peter
Object Type: Article
System: The UNT Digital Library
Experimental and kinetic modeling study of oxidation of acetonitrile (open access)

Experimental and kinetic modeling study of oxidation of acetonitrile

Article asserts that oxidation of acetonitrile has been studied in a flow reactor in the absence and presence of nitric oxide. A detailed chemical kinetic model for oxidation of acetonitrile was developed, based on a critical evaluation of data from literature. This is the accepted manuscript version of the published article.
Date: April 10, 2021
Creator: Alzueta, María U.; Guerrero, Marta; Millera, Angela; Marshall, Paul & Glarborg, Peter
Object Type: Article
System: The UNT Digital Library
Selective Noncatalytic Reduction of NOx Using Ammonium Sulfate (open access)

Selective Noncatalytic Reduction of NOx Using Ammonium Sulfate

Article discusses how ammonium sulfate (AS) is of interest as an additive in stationary combustion plants for the simultaneous control of NOx (through selective noncatalytic reduction, SNCR) and deposition and corrosion (through sulfation of alkali chlorides). The results indicated that sulfur from ammonium sulfate is mainly released as SO3, even though SO2 is detected in increasing concentrations at temperatures above 1000 °C. This is the accepted manuscript version of the published article.
Date: July 15, 2021
Creator: Krum, Kristian R. K.; Jensen, Martin; Li, Songgeng; Norman, Thomas; Marshall, Paul; Wu, Hao et al.
Object Type: Article
System: The UNT Digital Library
Kinetic fall-off behavior for the Cl + Furan-2,5-dione (C4H2O3, maleic anhydride) reaction (open access)

Kinetic fall-off behavior for the Cl + Furan-2,5-dione (C4H2O3, maleic anhydride) reaction

Article discusses how rate coefficients, k, for the gas-phase Cl + Furan-2,5-dione (C4H2O3, maleic anhydride) reaction were measured over the 15–500 torr (He and N2 bath gas) pressure range at temperatures between 283 and 323 K. An atmospheric degradation mechanism for C4H2O3 is proposed based on the observed product yields and theoretical calculations of ring-opening pathways and activation barrier energies at the CBS-QB3 level of theory. This is the accepted manuscript version of the published article.
Date: February 15, 2021
Creator: Chattopadhyay, Aparajeo; Gierczak, Tomasz; Marshall, Paul; Papadimitriou, Vassileios C. & Burkholder, James B. (James Bart), 1954-
Object Type: Article
System: The UNT Digital Library
New reactions of diazene and related species for modelling combustion of amine fuels (open access)

New reactions of diazene and related species for modelling combustion of amine fuels

Article discusses how potential energy surfaces for reactions involving N2H2 isomers of diazene (diimide) have been explored using density functional theory, with energies based on coupled-cluster theory. A focus is on processes that create or consume these species, and isomerization between the E (trans) and Z (cis) forms of HNNH. This is the accepted manuscript version of the published article.
Date: September 24, 2021
Creator: Marshall, Paul; Rawling, George R. & Glarborg, Peter
Object Type: Article
System: The UNT Digital Library
Ignition delay times of NH3/DME blends at high pressure and low DME fraction: RCM experiments and simulations (open access)

Ignition delay times of NH3/DME blends at high pressure and low DME fraction: RCM experiments and simulations

Authors of the article describe how autoignition delay times of ammonia/dimethyl ether (NH3/DME) mixtures were measured in a rapid compression machine with DME fractions of 0, 2 and 5 and 100% in the fuel. Analysis of the mechanism indicates that this 'early DME oxidation' generates reactive species that initiate the oxidation of ammonia, which in turn begins heat release that raises the temperature and accelerates the oxidation process towards ignition. This is the accepted manuscript version of the published article.
Date: January 14, 2021
Creator: Dai, Liming; Glarborg, Peter; Gersen, Sander; Marshall, Paul; Mokhov, Anatoli & Levinsky, Howard
Object Type: Article
System: The UNT Digital Library