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Replicate DNA metabarcoding can discriminate seasonal and spatial abundance shifts in river macroinvertebrate assemblages (open access)

Replicate DNA metabarcoding can discriminate seasonal and spatial abundance shifts in river macroinvertebrate assemblages

Article asserts that the delivery of consistent and accurate fine-resolution data on biodiversity using metabarcoding promises to improve environmental assessment and research. The authors propose a novel hierarchical approach to recovering abundance information from metabarcoding, and demonstrate this technique using benthic macroinvertebrates.
Date: March 31, 2023
Creator: Bush, A.; Compson, Z.; Rideout, N. K.; Levenstein, B.; Kattilakoski, M.; Hajibabaei, M. et al.
Object Type: Article
System: The UNT Digital Library
Gemini Near Infrared Spectrograph–Distant Quasar Survey: Augmented Spectroscopic Catalog and a Prescription for Correcting UV-based Quasar Redshifts (open access)

Gemini Near Infrared Spectrograph–Distant Quasar Survey: Augmented Spectroscopic Catalog and a Prescription for Correcting UV-based Quasar Redshifts

Article describes how quasars at z ≳ 1 most often have redshifts measured from rest-frame ultraviolet emission lines. One of the most common such lines, C ivλ1549, shows blueshifts up to ≈5000 km s−1 and in rare cases even higher. The authors present spectroscopic measurements for 260 sources at 1.55 ≲ z ≲ 3.50 having −28.0 ≲ Mi ≲ − 30.0 mag from the Gemini Near Infrared Spectrograph–Distant Quasar Survey (GNIRS-DQS) catalog, augmenting the previous iteration, which contained 226 of the 260 sources whose measurements are improved upon in this work.
Date: June 13, 2023
Creator: Matthews, Brandon M.; Dix, Cooper; Shemmer, Ohad; Brotherton, Michael S.; Myers, Adam D.; Andruchow, I. et al.
Object Type: Article
System: The UNT Digital Library
Code Comparison in Galaxy-scale Simulations with Resolved Supernova Feedback: Lagrangian versus Eulerian Methods (open access)

Code Comparison in Galaxy-scale Simulations with Resolved Supernova Feedback: Lagrangian versus Eulerian Methods

Authors of the article present a suite of high-resolution simulations of an isolated dwarf galaxy using four different hydrodynamical codes: Gizmo, Arepo, Gadget, and Ramses. They find reasonable agreement on the time-averaged star formation rates as well as the joint density–temperature distributions between all codes.
Date: June 16, 2023
Creator: Hu, Chia-Yu; Smith, Matthew C.; Teyssier, Romain; Bryan, Greg L.; Verbeke, Robbert; Emerick, Andrew et al.
Object Type: Article
System: The UNT Digital Library
Shedding New Light on Weak Emission-Line Quasars in the CIV-Hβ Parameter Space (open access)

Shedding New Light on Weak Emission-Line Quasars in the CIV-Hβ Parameter Space

Article describes how weak emission-line quasars (WLQs) are a subset of Type 1 quasars that exhibit extremely weak Lyα+N V λ1240 and/or C IV λ1549 emission lines. The authors investigate the relationship between emission-line properties and accretion rate for a sample of 230 `ordinary' Type 1 quasars and 18 WLQs at z<0.5 and 1.5<z<3.5 that have rest-frame ultraviolet and optical spectral measurements.
Date: April 10, 2023
Creator: Ha, Trung; Dix, Cooper; Matthews, Brandon M.; Shemmer, Ohad; Brotherton, Michael S.; Myers, Adam D. et al.
Object Type: Article
System: The UNT Digital Library
Biocultural Calendars Across Four Ethnolinguistic Communities in Southwestern South America (open access)

Biocultural Calendars Across Four Ethnolinguistic Communities in Southwestern South America

Article describes how, since the mid-20th century, the so-called Great Acceleration has amplified processes of ecosystem degradation, extinction of biological species, displacement of local peoples, losses of languages, and cultural diversity. The authors examine cultural practices and socio-environmental changes across four contrasting ethnolinguistic communities in southwestern South America, from southern to northern Chile along a marked climatic gradient to show the broad application of the concept of biocultural calendars.
Date: April 20, 2023
Creator: Rozzi, Ricardo, 1960-; Álvarez, Ricardo; Castro, Victoria; Núñez, David; Ojeda, Jaime & Tauro, Alejandra
Object Type: Article
System: The UNT Digital Library
Survival rates in the world's southernmost forest bird community (open access)

Survival rates in the world's southernmost forest bird community

Article asserts that the Magellanic sub-Antarctic Forest is home to the world's southernmost avian community and is the only Southern Hemisphere analogue to Northern Hemisphere temperate forests at this latitude. Authors describe annual survival patterns and their association with climate variables using a 20-year mark–recapture data set of five forest bird species in the Cape Horn Biosphere Reserve.
Date: June 20, 2023
Creator: Sandvig, Erik M.; Quilodrán, Claudio S.; Altamirano, Tomás A.; Aguirre, Francisco; Barroso, Omar; Rivero de Aguilar, Juan et al.
Object Type: Article
System: The UNT Digital Library
Biocultural homogenization in elementary education degree students from contrasting ecoregions of Chile (open access)

Biocultural homogenization in elementary education degree students from contrasting ecoregions of Chile

Article describes how biocultural homogenization is a wicked problem that implies the loss of biological and cultural diversity at different scales. The authors studied the perceptions that elementary education degree students (EEDS) have regarding the flora and fauna (co-inhabitants), their environments (habitats), and their daily customs or activities (habits) in these three ecoregions.
Date: 2023
Creator: Méndez-Herranz, Manuela; Ibarra, J. Tomás; Rozzi, Ricardo, 1960- & Marini, Guillermo
Object Type: Article
System: The UNT Digital Library
Whole-genome survey reveals extensive variation in genetic diversity and inbreeding levels among peregrine falcon subspecies (open access)

Whole-genome survey reveals extensive variation in genetic diversity and inbreeding levels among peregrine falcon subspecies

Article describes how, in efforts to prevent extinction, resource managers are often tasked with increasing genetic diversity in a population of concern to prevent inbreeding depression or improve adaptive potential in a changing environment. The authors used whole-genome resequencing to generate over two million single nucleotide polymorphisms (SNPs) from multiple individuals of all peregrine falcon subspecies.
Date: July 20, 2023
Creator: Johnson, Jeff A.; Athrey, Giridhar; Anderson, Clifford M.; Bell, Douglas A.; Dixon, Andrew; Kumazawa, Yoshinori et al.
Object Type: Article
System: The UNT Digital Library
Gemini Near Infrared Spectrograph–Distant Quasar Survey: Prescriptions for Calibrating UV-based Estimates of Supermassive Black Hole Masses in High-redshift Quasars (open access)

Gemini Near Infrared Spectrograph–Distant Quasar Survey: Prescriptions for Calibrating UV-based Estimates of Supermassive Black Hole Masses in High-redshift Quasars

Article describes how the most reliable single-epoch supermassive black hole mass (MBH) estimates in quasars are obtained by using the velocity widths of low-ionization emission lines, typically the Hβλ4861 line. The authors find that utilizing both emission lines, where available, reduces the scatter of UV-based MBH estimates by ∼15% when compared to previous studies.
Date: June 13, 2023
Creator: Dix, Cooper; Matthews, Brandon; Shemmer, Ohad; Brotherton, Michael S.; Myers, Adam D.; Andruchow, I. et al.
Object Type: Article
System: The UNT Digital Library
Effects of cultivar and nitrogen application rate on lint, seed, oil, and protein yields of field-grown cotton (open access)

Effects of cultivar and nitrogen application rate on lint, seed, oil, and protein yields of field-grown cotton

Article describes how the objective of this study was to evaluate the lint, seed, oil, and protein yield responses of cultivars with different seed mass and composition to N application rates (0–168 kg N ha−1) for field-grown cotton. The authors conclude that variability in the distribution of photosynthates to fiber and seed as well as seed oil and protein composition can significantly alter trends in fiber, seed, and seed component yields in response to cultivar or N application rates for field-grown cotton.
Date: March 9, 2023
Creator: Parkash, Ved; Snider, John L.; Bruce, Aaron; Ermanis, Alessandro; Virk, Gurpreet; Kaur, Navneet et al.
Object Type: Article
System: The UNT Digital Library
Homologues and homology and their related terms in phylogenetic systematics (open access)

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
Assembling Artificial Photosynthetic Models in Water Using β-Cyclodextrin-Conjugated Phthalocyanines as Building Blocks (open access)

Assembling Artificial Photosynthetic Models in Water Using β-Cyclodextrin-Conjugated Phthalocyanines as Building Blocks

Article describes how two water-soluble zinc(II) phthalocyanines substituted with two or four permethylated β-cyclodextrin (β-CD) moieties at the α positions have been utilized as building blocks for the construction of artificial photosynthetic models in water. The hydrophilic and bulky β-CD moieties not only can increase the water solubility of the phthalocyanine core and prevent its stacking in water but can also bind with a tetrasulfonated zinc(II) porphyrin (ZnTPPS) and/or sodium 2-anthraquinonesulfonate (AQ) in water through host–guest interactions.
Date: March 29, 2023
Creator: Chen, Xiao-Fei; Gobeze, Habtom B.; D'Souza, Francis & Ng, Dennis K. P.
Object Type: Article
System: The UNT Digital Library
Temporal complexity measure of reaction time series: Operational versus event time (open access)

Temporal complexity measure of reaction time series: Operational versus event time

Article describes how detrended fluctuation analysis (DFA) is a well-established method to evaluate scaling indices of time series, which categorize the dynamics of complex systems. The authors propose treating each reaction time as a duration time that changes the representation from operational (trial number) time n to event (temporal) time t, or X(t).
Date: May 23, 2023
Creator: Mahmoodi, Korosh; Kerick, Scott E.; Grigolini, Paolo; Franaszczuk, Pitor J. & West, Bruce J.
Object Type: Article
System: The UNT Digital Library
Analysis of Pectin-derived Monosaccharides from Arabidopsis Using GC–MS (open access)

Analysis of Pectin-derived Monosaccharides from Arabidopsis Using GC–MS

Article describes how pectin is a complex polysaccharide present in the plant cell wall, whose composition is constantly remodeled to adapt to environmental or developmental changes. Here, authors describe a quick and efficient gas chromatography–mass spectrometry (GC–MS)-based method that allows the differential analysis of pectin monosaccharide composition in plants under different conditions or between mutant plants and their respective wild types.
Date: August 20, 2023
Creator: Scholz, Patricia; Chapman, Kent Dean; Ischebeck, Till & Guzha, Athanas
Object Type: Article
System: The UNT Digital Library
Quantification of Botrytis cinerea Growth in Arabidopsis thaliana (open access)

Quantification of Botrytis cinerea Growth in Arabidopsis thaliana

Article describes how yield losses attributed to plant pathogens pose a serious threat to plant productivity and food security. Here, the authors describe two methods to quantify B. cinerea development in Arabidopsis thaliana genotypes through measurements of lesion development and quantification of fungal genomic DNA in infected tissues.
Date: August 20, 2023
Creator: Scholz, Patricia; Chapman, Kent Dean; Ischebeck, Till & Guzha, Athanas
Object Type: Article
System: The UNT Digital Library
Dynamic Motions of Topological Defects in Nematic Liquid Crystals under Spatial Confinement (open access)

Dynamic Motions of Topological Defects in Nematic Liquid Crystals under Spatial Confinement

Article discusses how topological defects (TDs) have become a sensational topic due to their significant influence on the unusual optical and physiochemical characteristics of the material. Here, authors assert how nematic liquid crystals confined in a cell exhibiting surfaces with periodic anchoring conditions containing surface topography are relied on.
Date: April 25, 2023
Creator: Pawale, Tejal; Swain, Justin; Hashemi, Mohammad Reza; Tierra, Giordano & Li, Xiao
Object Type: Article
System: The UNT Digital Library
Population-based analysis of POT1 variants in a cutaneous melanoma case–control cohort (open access)

Population-based analysis of POT1 variants in a cutaneous melanoma case–control cohort

Article describes how pathogenic germline variants in the protection of telomeres 1 gene (POT1) have been associated with predisposition to a range of tumor types, including melanoma, glioma, leukemia and cardiac angiosarcoma. The authors sequenced all coding exons of the POT1 gene in 2928 European-descent melanoma cases and 3298 controls, identifying 43 protein-changing genetic variants.
Date: December 20, 2022
Creator: Simonin-Wilmer, Irving; Ossio, Raul; Leddin, Emmett M.; Harland, Mark; Pooley, Karen A.; Martil de la Garza, Mauricio Gerardo et al.
Object Type: Article
System: The UNT Digital Library
First-principles property assessment of hybrid formate perovskites (open access)

First-principles property assessment of hybrid formate perovskites

Article discusses how hybrid organic–inorganic formate perovskites, AB(HCOO)3, are a large family of compounds that exhibit a variety of phase transitions and diverse properties, such as (anti)ferroelectricity, ferroelasticity, (anti)ferromagnetism, and multiferroism. While many properties of these materials have already been characterized, the authors seek to focus on the comprehensive property assessment of a large number of formate perovskites.
Date: August 17, 2023
Creator: Popoola, Abduljelili; Ghosh, P. S.; Kingsland, Maggie; Kashikar, Ravi; DeTellem, D.; Xu, Yixuan et al.
Object Type: Article
System: The UNT Digital Library
Uncoupling system and environment simulation cells for fast-scaling modeling of complex continuum embeddings (open access)

Uncoupling system and environment simulation cells for fast-scaling modeling of complex continuum embeddings

Article describes how continuum solvation models are becoming increasingly relevant in condensed matter simulations, allowing to characterize materials interfaces in the presence of wet electrified environments at a reduced computational cost with respect to all atomistic simulations. However, some challenges with the implementation of these models in plane-wave simulation packages still persists, and to address these challenges, the authors present the implementation of a double-cell formalism, in which the simulation cell used for the continuum environment is uncoupled from the one used for the electronic-structure simulation of the quantum-mechanical system.
Date: August 1, 2023
Creator: Medrano, G.; Bainglass, E. & Andreussi, O.
Object Type: Article
System: The UNT Digital Library
Haptoglobin Gene Expression and Anthracycline-Related Cardiomyopathy in Childhood Cancer Survivors: A COG-ALTE03N1 Report (open access)

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
Nonlinear frequency analysis of porous Bi directional functionally graded beams utilizing reddy shear deformation theory (open access)

Nonlinear frequency analysis of porous Bi directional functionally graded beams utilizing reddy shear deformation theory

Article describes how the nonlinear frequency response of bi-directional functionally graded porous beams experienced range of various end conditions is investigated in this work. The findings are presented to aid in future research into the effects of various gradient indices, vibration amplitude ratios, porosity coefficients, shear and elastic substrate parameters, boundary conditions, and vibration frequencies on the bi-directional functionally graded beams.
Date: September 3, 2023
Creator: Forghani, Mohammadamin; Bazarganlari, Yousef; Zahedinejad, Parham & Kazemzadeh-Parsi, Mohammad Javad
Object Type: Article
System: The UNT Digital Library
Optical Pump Terahertz Probe (OPTP) and Time Resolved Terahertz Spectroscopy (TRTS) of emerging solar materials Editor’s Pick (open access)

Optical Pump Terahertz Probe (OPTP) and Time Resolved Terahertz Spectroscopy (TRTS) of emerging solar materials Editor’s Pick

Article describes how photoconductivity is the crucial benchmark to assess the potential of any emerging material for future solar applications. This tutorial aims to familiarize the reader with the main THz techniques used to explore emerging materials.
Date: July 19, 2023
Creator: Neu, Jens
Object Type: Article
System: The UNT Digital Library
Histological features of non-alcoholic fatty liver disease revealed in response to mixed vehicle emission exposure and consumption of a high-fat diet in wildtype C57Bl/6 male mice (open access)

Histological features of non-alcoholic fatty liver disease revealed in response to mixed vehicle emission exposure and consumption of a high-fat diet in wildtype C57Bl/6 male mice

Article describes how non-alcoholic fatty liver disease (NAFLD) is currently plaguing the population at pandemic proportions and is expected to become more prevalent over the next decade. The authors investigated the hypothesis that exposure to a mixture of gasoline and diesel engine emissions (MVE), coupled with the concurrent consumption of a HF diet, promotes the development of a NAFLD phenotype within the liver.
Date: June 6, 2023
Creator: Schneider, Leah J.; Santiago, Isabella; Johnson, Bailee; Stanley, Analana Hays; Penaredondo, Bea & Lund, Amie K.
Object Type: Article
System: The UNT Digital Library
Integrating low-cost sensor monitoring, satellite mapping, and geospatial artificial intelligence for intra-urban air pollution predictions☆ (open access)

Integrating low-cost sensor monitoring, satellite mapping, and geospatial artificial intelligence for intra-urban air pollution predictions☆

Article describes how there is a growing need to apply geospatial artificial intelligence analysis to disparate environmental datasets to find solutions that benefit frontline communities. This research addresses these challenges by leveraging a strategically deployed, extensive low-cost sensor (LCS) network that was rigorously calibrated through an optimized neural network.
Date: May 18, 2023
Creator: Liang, Lu; Daniels, Jacob; Bailey, Colleen; Hu, Leiqiu; Phillips, Ronney & South, John
Object Type: Article
System: The UNT Digital Library