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Measurement of the Intramolecular Hydrogen-Shift Rate Coefficient for the CH3SCH2OO Radical Between 314 and 433 K
Article describes how the intramolecular hydrogen-shift rate coefficient of the CH3SCH2O2 (methylthiomethylperoxy, MSP) radical, a product formed in the oxidation of dimethyl sulfide (DMS), was measured using a pulsed laser photolysis flow tube reactor coupled to a high-resolution time-of-flight chemical ionization mass spectrometer that measured the formation of the DMS degradation end product HOOCH2SCHO. Measurements performed over the temperature range of 314–433 K yielded a hydrogen-shift rate coefficient of k1(T) = (2.39 ± 0.7) × 109 exp(−(7278 ± 99)/T) s–1 Arrhenius expression and a value extrapolated to 298 K of 0.06 s–1.
Date:
March 2, 2023
Creator:
Assaf, Emmanuel; Finewax, Zachary; Marshall, Paul; Veres, Patrick R.; Neuman, Andrew & Burkholder, James B. (James Bart), 1954-
Object Type:
Article
System:
The UNT Digital Library
Genetic Differentiation of the South Florida Red-Shouldered Hawk (Buteo lineatus extimus) from the Nominate Subspecies (Buteo lineatus lineatus)
Article discusses how the south Florida subspecies of the Red-shouldered Hawk (Buteo lineatus extimus) is distinctly paler and smaller than other subspecies, reproduces at a lower rate, and can occupy very different habitats such as open marshes and grasslands with only scattered trees. The authors evaluated population differentiation between the south Florida population of Red-shouldered Hawks and two populations of eastern Red-shouldered Hawks (B. l. lineatus) in suburban (Cincinnati) and rural (Hocking Hills) environments in southern Ohio.
Date:
March 1, 2023
Creator:
Dykstra, Madeline A.; Marain, Donna M.; Wrona, Anna M.; Dysktra, Cheryl R.; Farrington, Heather L.; Johnson, Jeff A. et al.
Object Type:
Article
System:
The UNT Digital Library
Tuning excited state electronic structure and charge transport in covalent organic frameworks for enhanced photocatalytic performance
Article describes how covalent organic frameworks (COFs) represent an emerging class of organic photocatalysts. The authors use reticular chemistry to construct a family of isoreticular crystalline hydrazide-based COF photocatalysts, with the optoelectronic properties and local pore characteristics of the COFs modulated using different linkers.
Date:
February 27, 2023
Creator:
Chen, Zhongshan; Wang, Jingyi; Hao, Mengjie; Xie, Yinghui; Liu, Xiaolu; Waterhouse, Geoffrey I. N. et al.
Object Type:
Article
System:
The UNT Digital Library
Linking random forest and auxiliary factors for extracting the major economic forests in the mountainous areas of southwestern Yunnan Province, China
Article describes how forests are generally extracted from remotely sensed images based on the spectral features, ignoring other important auxiliary information, and the techniques of precise extraction need to be further improved. By using the Sentinel–2 image and auxiliary factors (AFs) including site conditions (SCs) and vegetation indices (VIs), the random forest model with AFs (RF–AFs) was adopted for the extraction of the economic forests in Lancang County, which is a mountainous area with rich biodiversity and is witnessing rapid development of economic forests in Yunnan province of China.
Date:
February 24, 2023
Creator:
Huang, Pei; Zhao, Xiaoqing; Pu, Junwei; Gu, Zexian; Feng, Yan; Zhou, Shijie et al.
Object Type:
Article
System:
The UNT Digital Library
Linking random forest and auxiliary factors for extracting the major economic forests in the mountainous areas of southwestern Yunnan Province, China
Article describes how forests are generally extracted from remotely sensed images based on the spectral features, ignoring other important auxiliary information, and the techniques of precise extraction need to be further improved. By using the Sentinel–2 image and auxiliary factors (AFs) including site conditions (SCs) and vegetation indices (VIs), the random forest model with AFs (RF–AFs) was adopted for the extraction of the economic forests in Lancang County.
Date:
February 24, 2023
Creator:
Huang, Pei; Zhao, Xiaoqing; Pu, Junwei; Gu, Zexian; Feng, Yan; Zhou, Shijie et al.
Object Type:
Article
System:
The UNT Digital Library
Automated Approach to In Vitro Image-Guided Photothermal Therapy with Top-Down and Bottom-Up-Synthesized Graphene Quantum Dots
Article discusses how, based on recent studies, graphene quantum dots (GQDs) are expected to possess advantageous photothermal properties and facilitate fluorescence image-tracking in the visible and near-infrared (NIR), while surpassing other graphene-based materials in their biocompatibility. The combination of the photothermal and imaging modalities tested in vitro makes the GQDs developed in this work prospective agents for cancer theragnostics.
Date:
February 22, 2023
Creator:
Lee, Bong; Stokes, Gretel A.; Valimukhametova, Alina; Nguyen, Steven; Gonzalez-Rodriguez, Roberto; Bhaloo, Adam et al.
Object Type:
Article
System:
The UNT Digital Library
Spatially confined protein assembly in hierarchical mesoporous metal-organic framework
Article discusses how the immobilization of biomolecules into porous materials could lead to significantly enhanced performance in terms of stability towards harsh reaction conditions and easier separation for their reuse. To gain insights into the spatial arrangement of biomolecules within the nanopores, the authors used in situ small-angle neutron scattering (SANS) to probe deuterated green fluorescent protein (d-GFP) entrapped in a mesoporous MOF.
Date:
February 21, 2023
Creator:
Wang, Xiaoliang; He, Lilin; Sumner, Jacob; Qian, Shuo; Zhang, Qiu; O'Neill, Hugh et al.
Object Type:
Article
System:
The UNT Digital Library
Insights into the Bioinformatics and Transcriptional Analysis of the Elongator Complexes (ELPs) Gene Family of Wheat: TaELPs Contribute to Wheat Abiotic Stress Tolerance and Leaf Senescence
Article states that elongator complexes (ELPs) are the protein complexes that promote transcription through histone acetylation in eukaryotic cells and interact with elongating RNA polymerase II. ELPs’ role in plant growth and development, signal transduction, and response to biotic and abiotic stresses have been confirmed in model plants, but the functions of the wheat ELP genes are not well documented. The present study identified 18 members of the ELPs from the wheat genome with a homology search.
Date:
February 20, 2023
Creator:
Guo, Feng; Islam, Md Ashraful; Lv, Chenxu; Jin, Xiujuan; Sun, Lili; Zhao, Kai et al.
Object Type:
Article
System:
The UNT Digital Library
Dementia and COVID-19 among Older African American Adults: A Scoping Review of Healthcare Access and Resources
Article discusses how African American/Black communities comprise 12.2% of the U.S. population, with a COVID-19 infection rate of more than 18% and marginal access to healthcare services. This scoping review synthesizes the emerging evidence on healthcare accessibility among older African American adult communities with dementia and COVID-19, as well as the resource requirements for this population during the pandemic.
Date:
February 16, 2023
Creator:
Udoh, Idorenyin Imoh; Mpofu, Elias & Prybutok, Gayle
Object Type:
Article
System:
The UNT Digital Library
Analyzing the Bolometric Performance of Vanadium Oxide Thin Films Modified by Carbon Nanotube Dispersions
Article investigates the influence of carbon nanotube (CNT) dispersions on the electrical properties and noise signal amplitude of 𝑉𝑂𝑥 films. The results presented in this work provide a better understanding of 𝑉𝑂𝑥-based composites, thereby enabling the development of new, versatile and functional materials for device applications.
Date:
February 12, 2023
Creator:
Philipose, Usha; Littler, Chris; Jiang, Yan; Naciri, Alia; Harcrow, Michael & Syllaios, A. J.
Object Type:
Article
System:
The UNT Digital Library
Reduced reflectance and altered color: The potential cost of external particulate matter accumulation on urban Rock Pigeon (Columba livia) feathers
Authors of the article state that airborne particulate matter (PM) can accumulate on feather surfaces and alter feather appearance, so they quantified PM accumulation on Rock Pigeon feathers and analyzed the spectral properties of extracted particulates. Their findings suggest that wild birds could incur an urban pollution penalty as PM accumulation has the potential to alter feather properties.
Date:
February 10, 2023
Creator:
Ellis, Jennifer L.; Ponette-González, Alexandra G.; Fry, Matthew & Johnson, Jeff A.
Object Type:
Article
System:
The UNT Digital Library
Urban Feature Extraction within a Complex Urban Area with an Improved 3D-CNN Using Airborne Hyperspectral Data
Article describes how airborne hyperspectral data has high spectral-spatial information, but mining and using this information effectively is still a great challenge. Therefore, a 3D-1D-CNN model was proposed for feature extraction in complex urban with hyperspectral images affected by cloud shadows.
Date:
February 10, 2023
Creator:
Ma, Xiaotong; Man, Qixia; Yang, Xinming; Dong, Pinliang; Yang, Zelong; Wu, Jingru et al.
Object Type:
Article
System:
The UNT Digital Library
A theoretical study of M–M′ polar-covalent bonding in heterobimetallic multinuclear organometallic complexes of monovalent group 11 metal centres
Article describes how complexes with closed-shell (d10–d10) interactions have been studied for their interesting luminescence properties in organic light-emitting diode (OLED) devices. The present computational study aims at understanding the chemical bonding/interactions in a series of molecules with unusually short metal–metal bond distances between monovalent coinage-metal (d10–d10) centres.
Date:
February 8, 2023
Creator:
Rabaâ, Hassan; Sundholm, Dage & Omary, Mohammad A.
Object Type:
Article
System:
The UNT Digital Library
Haptoglobin Gene Expression and Anthracycline-Related Cardiomyopathy in Childhood Cancer Survivors: A COG-ALTE03N1 Report
Article describes how anthracycline-related cardiomyopathy is a leading cause of premature death in childhood cancer survivors. The authors interrogated differentially expressed genes (DEGs) to identify genetic variants serving regulatory functions or genetic variants not easily identified when using genomewide array platforms.
Date:
February 7, 2023
Creator:
Singh, Purnima; Crossman, David K.; Zhou, Liting; Wang, Xuexia; Sharafeldin, Noha; Hageman, Lindsey et al.
Object Type:
Article
System:
The UNT Digital Library
Effectiveness of a Single Prolonged Aerobic Exercise Session on Executive Function Task Performance in Physically Active Adults (21–70 Years of Age)
Authors of the article sought to examine the effectiveness of an acute prolonged exercise session on post-exercise executive function in physically active adults and to assess if age or pre-exercise cognitive performance was predictive of the magnitude of change in executive task performance. Their results support the effectiveness of a single prolonged exercise bout to augment executive function in physically active adults, irrespective of age.
Date:
February 4, 2023
Creator:
Yates, Brandon A.; Armstrong, Lawrence E.; Lee, Elaine C.; Unverzagt, Frederick W.; Dadzie, Ekow Jr.; Williamson, Keith et al.
Object Type:
Article
System:
The UNT Digital Library
Homologues and homology and their related terms in phylogenetic systematics
Article describes how, in the field of phylogenetic systematics, the terms homology and homologue and their relationship to cladistic terms such as character, character state, synapomorphy and symplesiomorphy, as well as their relationships to each other, have been and are still discussed frequently. A recent re-emergence of concepts of homology/homologue free of any reference to explanatory hypotheses prompted the authors to explore these concepts and their relationships to each other as well as to the concept of morpheme, as introduced recently.
Date:
February 4, 2023
Creator:
Göpel, Torben & Richter, Stefan
Object Type:
Article
System:
The UNT Digital Library
Evolutionary models of lateralization: Steps toward stigmergy?
Article discusses an interesting approach to accounting for brain and behavioral asymmetry based on competition and cooperation in phenotypically asymmetric individuals. The model in question shows, in an almost fully analytical way, that under proper conditions, there exists an unequal number of equilibrium of left-and right-lateralized individuals.
Date:
February 2, 2023
Creator:
Tonello, Lucio & Vallortigara, Giorgio
Object Type:
Article
System:
The UNT Digital Library
Progress in understanding and improving oil content and quality in seeds
Article asserts that the world’s population is projected to increase by two billion by 2050, resulting in food and energy insecurity. This review provides a summary of the current knowledge of oil metabolism and discusses how photochemical activity and unconventional pathways can contribute to high carbon conversion efficiency in seeds.
Date:
January 26, 2023
Creator:
Sagun, Julius Ver; Yadav, Umesh P. & Alonso, Ana Paula
Object Type:
Article
System:
The UNT Digital Library
Post-imprinting modification: electrochemical and scanning electrochemical microscopy studies of a semi-covalently surface imprinted polymer
Authors of the article describe a post-imprinting modification of the imprinted molecular cavities for electrochemical sensing of a target protein. These mesoporous cavities were modified with a ferrocene ‘electrochemical’ tracer for electrochemical transduction of the target protein recognition.
Date:
January 25, 2023
Creator:
Kalecki, Jakub; Cieplak, Maciej; Iskierko, Z.; Piechowska, Joanna; Nogala, Wojciech; D'Souza, Francis et al.
Object Type:
Article
System:
The UNT Digital Library
Metabolic reprogramming underlies cavefish muscular endurance despite loss of muscle mass and contractility
Article discusses the Mexican cavefish Astyanax mexicanus, has lost moderate-to-vigorous activity following cave colonization, reaching basal swim speeds ~3.7-fold slower than their river-dwelling counterpart. Collectively, the authors reveal broad skeletal muscle changes following cave colonization, displaying an adaptive skeletal muscle phenotype reminiscent to mammalian disuse and high-fat models while simultaneously maintaining a unique capacity for sustained muscle contraction via enhanced glycogen metabolism.
Date:
January 24, 2023
Creator:
Olsen, Luke; Levy, Michaella; Medley, J. Kyle; Hassan, Huzaifa; Miller, Brandon; Alexander, Richard et al.
Object Type:
Article
System:
The UNT Digital Library
Can Market-Oriented Reform of Agricultural Subsidies Promote the Growth of Agricultural Green Total Factor Productivity? Empirical Evidence from Maize in China
Article asserts that green agriculture is the future of agricultural development. The policy implication of this paper is that developing countries should actively promote the market-oriented reform of agricultural subsidies to promote green agricultural development.
Date:
January 20, 2023
Creator:
Ye, Feng; Yang, Zhongna; Yu, Mark; Watson, Susan & Lovell, Ashley
Object Type:
Article
System:
The UNT Digital Library
Scientists warning on the ecological effects of radioactive leaks on ecosystems
Article describes the devastating effects of nuclear radiation and its long-lasting consequences on Earth’s ecosystems. The authors call upon all scientists to communicate the importance of the environmental impacts of such an event to all life forms on Earth, including humankind.
Date:
January 20, 2023
Creator:
Bonacic, Cristián; Medellin, Rodrigo A.; Ripple, William; Sukumar, Raman; Ganswindt, Andre; Padua, Suzana M. et al.
Object Type:
Article
System:
The UNT Digital Library
The exact consistency strength of the generic absoluteness for the universally Baire sets
Article describes how a set of reals is universally Baire if all of its continuous preimages in topological spaces have the Baire property. The authors show that over some mild large cardinal theory, sealing is equiconsistent with LSA-over-uB.
Date:
January 18, 2023
Creator:
Sargsyan, Grigor & Trang, Nam
Object Type:
Article
System:
The UNT Digital Library
Mapping Health Fragility and Vulnerability in Air Pollution–Monitoring Networks in Dallas–Fort Worth
Article describes how environmental air pollution remains a major contributor to negative health outcomes and mortality, but the relationship between socially vulnerable populations and air pollution is not well understood. This paper seeks to understand how air pollution monitor placement strategies and policy may neglect social vulnerabilities and therefore potentially underestimate exposure burdens in vulnerable populations.
Date:
January 18, 2023
Creator:
Northeim, Kari & Oppong, Joseph R.
Object Type:
Article
System:
The UNT Digital Library