Stereochemical and Biosynthetic Rationalisation of the Tropolone Sesquiterpenoids (open access)

Stereochemical and Biosynthetic Rationalisation of the Tropolone Sesquiterpenoids

Article summarises the known structures, biological activities, and biosynthetic pathways of the tropolone sesquiterpenoid family of fungal secondary metabolites. Synthesis of this knowledge allows likely structural and stereochemical misassignments to be revised and shows how the compounds can be divided into three main biosynthetic classes based on the stereochemistry of key biosynthetic steps.
Date: August 31, 2022
Creator: Li, Lei & Cox, Russell, J.
Object Type: Article
System: The UNT Digital Library
Model checking via testing for direct effects in Mendelian Randomization and transcriptome-wide association studies (open access)

Model checking via testing for direct effects in Mendelian Randomization and transcriptome-wide association studies

This article proposes a new and general goodness-of-fit (GOF) test, called TEDE (TEsting Direct Effects), applicable to both correlated and independent SNPs/IVs as commonly used in transcriptome-wide association studies (TWAS) and Mendelian randomization (MR) respectively.
Date: August 2, 2021
Creator: Deng, Yangqing & Pan, Wei
Object Type: Article
System: The UNT Digital Library
Development of Neutral Red as a pH/pCO2 Luminescent Sensor for Biological Systems (open access)

Development of Neutral Red as a pH/pCO2 Luminescent Sensor for Biological Systems

This article demonstrates for the first time that Neutral Red (NR) can also serve as a CO2 sensor, because of NR’s unique optical properties, which change with dissolved carbon dioxide (dCO2) concentrations. In this article optical sensitivity of NR was quantified as a function of changes in absorption and emission spectra to dCO2 in a pH 7.3 buffer medium at eight dCO2 concentrations.
Date: August 5, 2021
Creator: Ericson, Megan N.; Shankar, Sindhu K.; Chahine, Laya M.; Omary, Mohammad A.; Hunt von Herbing, Ione & Marpu, Sreekar
Object Type: Article
System: The UNT Digital Library
Reactions of triosmium and triruthenium clusters with 2-ethynylpyridine: new modes for alkyne C–C bond coupling and C–H bond activation (open access)

Reactions of triosmium and triruthenium clusters with 2-ethynylpyridine: new modes for alkyne C–C bond coupling and C–H bond activation

Article investigates the reaction of the trimetallic clusters [H₂Os₃(CO)₁₀] and [Ru₃(CO)₁₀L₂] (L = CO, MeCN) with 2-ethynylpyridine.
Date: August 19, 2020
Creator: Richmond, Michael G.; Joy, Tuhinur R.; Roknuzzaman; Hossain, Emdad; Ghosh, Shishir; Tocher, Derek A. et al.
Object Type: Article
System: The UNT Digital Library
Metal–Organic Frameworks for Enzyme Immobilization: Beyond Host Matrix Materials (open access)

Metal–Organic Frameworks for Enzyme Immobilization: Beyond Host Matrix Materials

Article reviews current research of role/function diversities of host matrix metal–organic frameworks (MOFs), noting the importance of understanding enzyme structural alternation and enzyme−MOF interaction after immobilization.
Date: August 27, 2020
Creator: Wang, Xiaoliang; Lan, Pui Ching & Ma, Shengqian
Object Type: Article
System: The UNT Digital Library
Ribulose-1,5-Bisphosphate Carboxylase/Oxygenase (RubisCO) Is Essential for Growth of the Methanotroph Methylococcus capsulatus Strain Bath (open access)

Ribulose-1,5-Bisphosphate Carboxylase/Oxygenase (RubisCO) Is Essential for Growth of the Methanotroph Methylococcus capsulatus Strain Bath

This article demonstrates that shows both CO2 and RubisCO are essential for M. capsulatus Bath growth. CO2 tracing experiments supported that RubisCO mediates CO2 fixation and that a noncanonical Calvin cycle is active in this organism. The study provides insights into the expanding knowledge of methanotroph metabolism and implicates dually CH4/CO2-utilizing bacteria as more important players in the biogeochemical carbon cycle than previously appreciated. In addition, M. capsulatus and other methanotrophs with CO2 assimilation capacity represent candidate organisms for the development of biotechnologies to mitigate the two most abundant greenhouse gases, CH4 and CO2.
Date: August 26, 2021
Creator: Henard, Calvin; Wu, Chao; Xiong, Wei; Henard, Jessica M.; Davidheiser-Kroll, Brett; Orata, Fabini D. et al.
Object Type: Article
System: The UNT Digital Library
NSF-BSF: Mechanism of Cuticle Remodeling by Hypoxia (open access)

NSF-BSF: Mechanism of Cuticle Remodeling by Hypoxia

Data management plan for the grant, "NSF-BSF: Mechanism of Cuticle Remodeling by Hypoxia."
Date: 2023-08-01/2027-07-31
Creator: Padilla, Pamela A.
Object Type: Text
System: The UNT Digital Library
Electron Irradiation of Graphene in Air at Atmospheric Pressure: a Method for Hydrogenating Graphene for Hydrogen Storage Applications (open access)

Electron Irradiation of Graphene in Air at Atmospheric Pressure: a Method for Hydrogenating Graphene for Hydrogen Storage Applications

Data management plan for the grant, "Electron Irradiation of Graphene in Air at Atmospheric Pressure: a Method for Hydrogenating Graphene for Hydrogen Storage Applications."
Date: 2023-08-01/2026-07-31
Creator: Pérez, José M.
Object Type: Text
System: The UNT Digital Library
Numerical Investigation of Dynamical and Morphological Trends in Relativistic Jets (open access)

Numerical Investigation of Dynamical and Morphological Trends in Relativistic Jets

Article investigates the connection of kiloparsec scale AGN jet properties to their intrinsic parameters and surroundings. This is the accepted manuscript version of the article.
Date: August 2022
Creator: Mandal, Soham; Duffell, Paul C. & Li, Yuan
Object Type: Article
System: The UNT Digital Library
High degree of non-genetic phenotypic variation in the vascular system of crayfish: a discussion of possible causes and implications (open access)

High degree of non-genetic phenotypic variation in the vascular system of crayfish: a discussion of possible causes and implications

This article studies the hemolymph vascular system (HVS) in two cambarid crayfishes, i.e. the Marbled Crayfish, Procambarus virginalis Lyko, 2017 and the Spiny Cheek Crayfish, Faxonius limosus (Rafinesque, 1817) in regard to areas of non-genetic phenotypic variation.
Date: August 12, 2021
Creator: Scholz, Stephan; Göpel, Torben; Richter, Stefan & Wirkner, Christian S.
Object Type: Article
System: The UNT Digital Library
Magnesium and Fibromyalgia: A Literature Review (open access)

Magnesium and Fibromyalgia: A Literature Review

This article investigates if the widespread use of magnesium in fibromyalgia is supported by evidence in the literature. This review provides a layout of the studies examining the correlation between body magnesium levels and fibromyalgia and elaborates on the trials testing the effectiveness of magnesium in treating different clinical parameters of fibromyalgia.
Date: August 14, 2021
Creator: Boulis, Michael; Boulis, Mary & Clauw, Daniel
Object Type: Article
System: The UNT Digital Library
Phylogenetic Occurrence of the Phenylpropanoid Pathway and Lignin Biosynthesis in Plants (open access)

Phylogenetic Occurrence of the Phenylpropanoid Pathway and Lignin Biosynthesis in Plants

This article is a review summarizing recent progress in defining the lignin biosynthetic pathway in lycophytes, monilophytes, gymnosperms, and angiosperms. This review provides new insights into the genetic engineering of the lignin biosynthetic pathway to overcome biomass recalcitrance in bioenergy crops.
Date: August 17, 2021
Creator: Yao, Tao; Feng, Kai; Xie, Meng; Barros, Jaime; Tschaplinski, Timothy J.; Tuskan, Gerald et al.
Object Type: Article
System: The UNT Digital Library
Regulators of von Willebrand Factor Levels (open access)

Regulators of von Willebrand Factor Levels

Data management plan for the grant "Regulators of von Willebrand Factor Levels." Von Willebrand Disease is the most prevalent bleeding disease. In one of the types called type 1 von Willebrand Disease, the disease-causing genes are not known. Using zebrafish as a model, this project proposes to identify genes that cause the disease by crippling the genes by knockdown methods, and such identification may lead to not only the identification of mutations in the corresponding human genes but also to a better diagnosis.
Date: 2021-08-01/2024-07-31
Creator: Jagadeeswaran, Pudur
Object Type: Text
System: The UNT Digital Library
Comparative Diet Analysis of Barn Owl (Tyto alba) and Long- Eared Owl (Asio otus) in a Habitat Island in North-Central Texas (open access)

Comparative Diet Analysis of Barn Owl (Tyto alba) and Long- Eared Owl (Asio otus) in a Habitat Island in North-Central Texas

Article filling the regional gap in knowledge of diet composition of the barn owl (Tyto alba) and the long-eared owl (Asio otus). The study was conducted at the Lewisville Lake Environmental Learning Area (LLELA) and examined the remains found in owl pellets collected September 2016 to March 2017.
Date: August 22, 2020
Creator: Jiménez, Jaime E.; Jones, Matthew K.; Stoddart, Kaitlyn; Dickson, Sentell; Chapman, Abigail; Baxter-Slye, Jaime L. et al.
Object Type: Article
System: The UNT Digital Library
Metal Oxynitrides: Tuning Metal-N and Metal-O Interactions for Improved Electrocatalytic Properties at the Liquid/Solid Interface (open access)

Metal Oxynitrides: Tuning Metal-N and Metal-O Interactions for Improved Electrocatalytic Properties at the Liquid/Solid Interface

Data management plan for the grant "Metal Oxynitrides: Tuning Metal-N and Metal-O Interactions for Improved Electrocatalytic Properties at the Liquid/Solid Interface." Research investigating the fundamental chemical interactions relevant to the conversion of dinitrogen to ammonia via more energy-efficient routes. The studies will help in understanding the chemical and material factors that are most important for optimizing new materials for ammonia production from dinitrogen, and applications to other important industrial reactions.
Date: 2021-08-01/2024-07-31
Creator: Kelber, Jeffry A.; Cundari, Thomas R., 1964- & D'Souza, Francis
Object Type: Text
System: The UNT Digital Library
A Statistical Analysis of Trans-Resveratrol in Grape Cane From Ten Varieties of Cultivated Wine Grapes (Vitis Spp.) (open access)

A Statistical Analysis of Trans-Resveratrol in Grape Cane From Ten Varieties of Cultivated Wine Grapes (Vitis Spp.)

This article isolated resveratrol by a non-optimized protocol from ten varieties of grape cane grown in central Texas, USA. A statistical grouping of the ten varieties suggests that Norton, Blanca du bois, Cabernet Sauvignon, and Lenoir are the best candidates to use for further resveratrol isolation.
Date: August 22, 2020
Creator: Rathburn, Harold; Bell, Peter; Cook, Scott; Mayberry, Darrell D.; Geye, Emryse & Goodrich, Ryann
Object Type: Article
System: The UNT Digital Library
Protein Determination with Molecularly Imprinted Polymer Recognition Combined with Birefringence Liquid Crystal Detection (open access)

Protein Determination with Molecularly Imprinted Polymer Recognition Combined with Birefringence Liquid Crystal Detection

Article integrating a molecularly imprinted polymer (MIP) film recognition unit with a liquid crystal (LC) in an optical cell transducer to incur the selectivity of liquid crystal-based sensors.
Date: August 20, 2020
Creator: Cieplak, Maciej; Węgłowski, Rafał; Iskierko, Z.; Węgłowska, Dorota; Sharma, Piyush S.; Noworyta, Krzysztof R. et al.
Object Type: Article
System: The UNT Digital Library
The Subantarctic Rayadito (Aphrastura subantarctica), a new bird species on the southernmost islands of the Americas (open access)

The Subantarctic Rayadito (Aphrastura subantarctica), a new bird species on the southernmost islands of the Americas

Article describes a new taxon of terrestrial bird of the genus Aphrastura (rayaditos) inhabiting the Diego Ramírez Archipelago, the southernmost point of the American continent. The authors state that the discovery of this endemic passerine highlights the need to monitor and conserve this still-pristine archipelago devoid of exotic species, which is now protected by the recently created Diego Ramírez Islands-Drake Passage Marine Park.
Date: August 26, 2022
Creator: Rozzi, Ricardo, 1960-; Quilodrán, Claudio S.; Botero-Delgadillo, Esteban; Napolitano, Constanza; Torres-Mura, Juan C.; Barroso, Omar et al.
Object Type: Article
System: The UNT Digital Library
Environmental filtering of macroinvertebrate traits influences ecosystem functioning in a large river floodplain (open access)

Environmental filtering of macroinvertebrate traits influences ecosystem functioning in a large river floodplain

Article describes how the biodiversity–ecosystem function hypothesis postulates that higher biodiversity is correlated with faster ecosystem process rates and increased ecosystem stability in fluctuating environments. The authors examined linkages among floodplain wetland habitats, invertebrate communities and their associated traits, and ecosystem function across 60 sites within the floodplain wetlands of the lower Wolastoq, Saint John River, New Brunswick.
Date: August 20, 2022
Creator: Rideout, Natalie K.; Compson, Zacchaeus Greg; Monk, Wendy A.; Brunce, Meghann R.; Hajibabaei, Mehrdad; Porter, Teresita M. et al.
Object Type: Article
System: The UNT Digital Library
Encroachment order and spatial patterns of broad-leaf tree species in the naturalization of a Cunninghamia lanceolata plantation (open access)

Encroachment order and spatial patterns of broad-leaf tree species in the naturalization of a Cunninghamia lanceolata plantation

Authors of the article state that the aim of this study was to understand the encroachment order, spatial patterns, interspecific associations, and species diversity of a Cunninghamia lanceolata plantation and to provide context for how to improve the spatial structure of C. lanceolata plantations. Their results show that the encroachment of broad-leaf trees into the C. lanceolata plantation followed a clear successional sequence of tree community assembly: intolerant tree species encroachment first, such as Alniphyllum fortunei and Liquidambar formosana, encroached; neutral tree species then encroachment, such as Daphniphyllum oldhamii and Schima superba, and shade-tolerant tree species encroachment last, such as Castanopsis eyrei and Castanopsis tibetana.
Date: August 3, 2022
Creator: Zeng, Xiaoxia; Chen, Lin; Compson, Zacchaeus Greg; Li, Jiejun; Peng, Qiaohua; Gong, Chao et al.
Object Type: Article
System: The UNT Digital Library
Diverse values of nature for sustainability (open access)

Diverse values of nature for sustainability

Article describes how, twenty-five years since foundational publications on valuing ecosystems services for human well-being, addressing the global biodiversity crisis still implied confronting barriers to incorporating nature's diverse values into decision-making. The authors assert that a better understanding of how and why nature is (under)valued is more urgent than ever.
Date: August 9, 2023
Creator: Pascual, Unai; Balvanera, Patricia; Anderson, Christopher B.; Chaplin-Kramer, Rebecca; Christie, Michael; González-Jiménez, David et al.
Object Type: Article
System: The UNT Digital Library
Enhanced Photoluminescence and Prolonged Carrier Lifetime through Laser Radiation Hardening and Self-Healing in Aged MAPbBr3 Perovskites Encapsulated in NiO Nanotubes (open access)

Enhanced Photoluminescence and Prolonged Carrier Lifetime through Laser Radiation Hardening and Self-Healing in Aged MAPbBr3 Perovskites Encapsulated in NiO Nanotubes

Article describes how organic-inorganic perovskites hold great promise as optoelectronic semiconductors for pure color light emitting and photovoltaic devices. This paper investigates the laser radiation hardening and self-healing-induced properties of aged MAPbBr3 perovskites encapsulated in NiO nanotubes (MAPbBr3@NiO) using photoluminescence (PL) and fluorescence lifetime imaging (FLIM). After deliberately subjecting the MAPbBr3@ NiO to atmospheric conditions for two years, the sample remains remarkably stable.
Date: August 31, 2023
Creator: Kamau, Steve; Rodriguez, Roberto Gonzalez; Jiang, Yan; Mondragon, Araceli Herrera; Varghese, Sinto; Hurley, Noah et al.
Object Type: Article
System: The UNT Digital Library
The psychosocial burden of women seeking treatment for breast and cervical cancers in Ghana’s major cancer hospitals (open access)

The psychosocial burden of women seeking treatment for breast and cervical cancers in Ghana’s major cancer hospitals

Article discusses how breast and cervical cancers remain the most common cancers and the leading cause of cancer deaths in Ghana. Authors state that there is a need for liaison psychiatrists and health psychologists to assist oncologists to provide psychological support such as free and routine counselling services for cancer patients and their caregivers.
Date: August 22, 2023
Creator: Okyere Asante, Patience Gyamenah; Owusu, Adobea Yaa; Oppong, Joseph R.; Amegah, Kingsley E. & Nketiah-Amponsah, Edward
Object Type: Article
System: The UNT Digital Library
Oxidation of methylamine (open access)

Oxidation of methylamine

Article describes how a detailed chemical kinetic model for oxidation of methylamine has been developed, based on theoretical work and a critical evaluation of data from the literature. The mechanism was validated against experimental results from batch reactors, flow reactors, shock tubes, and premixed flames. This is the accepted manuscript version of the published article.
Date: August 5, 2020
Creator: Glarborg, Peter; Andreasen, Charlotte S.; Hashemi, Hamid; Qian, Rachel & Marshall, Paul
Object Type: Article
System: The UNT Digital Library