A multiscale approach reveals elaborate circulatory system and intermittent heartbeat in velvet worms (Onychophora) (open access)

A multiscale approach reveals elaborate circulatory system and intermittent heartbeat in velvet worms (Onychophora)

Article describes how an antagonistic hemolymph-muscular system is essential for soft-bodied invertebrates. The authors analyzed the entire circulatory system of the peripatopsid Euperipatoides rowelli and claimed they discovered a surprisingly elaborate organization.
Date: April 28, 2023
Creator: Jahn, Henry; Hammel, Jörg U.; Göpel, Torben; Wirkner, Christian S. & Mayer, Georg
System: The UNT Digital Library
A Remarkable Difference in Pharmacokinetics of Fluorinated Versus Iodinated Photosensitizers Derived from Chlorophyll-a and a Direct Correlation between the Tumor Uptake and Anti-Cancer Activity (open access)

A Remarkable Difference in Pharmacokinetics of Fluorinated Versus Iodinated Photosensitizers Derived from Chlorophyll-a and a Direct Correlation between the Tumor Uptake and Anti-Cancer Activity

Article says that to investigate and compare the pharmacokinetic profile and anti-cancer activity of fluorinated and iodinated photosensitizers (PSs), the 3-(1′-(o-fluorobenzyloxy)ethyl pyropheophorbide and the corresponding meta-(m-) and para (p-) fluorinated analogs (methyl esters and carboxylic acids) were synthesized. According to the authors, the nature of the delivery vehicle and tumor types showed a significant difference in uptake and long-term cure by photodynamic therapy (PDT), especially in the iodinated PS.
Date: April 27, 2023
Creator: Pandurang, Taur Prakash; Cacaccio, Joseph; Durrani, Farukh A.; Dukh, Mykhaylo; Alsaleh, Ajyal Z.; Sajjad, Munawwar et al.
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
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
System: The UNT Digital Library
Molecular Simulation Strategies for Understanding the Degradation Mechanisms of Acrylic Polymers (open access)

Molecular Simulation Strategies for Understanding the Degradation Mechanisms of Acrylic Polymers

Article describes how acrylic polymers, commonly used in paints, can degrade over time by several different chemical and physical mechanisms, depending on structure and exposure conditions. In this work, the authors studied the effects of different degradation mechanisms and agents on properties of acrylic polymers found in artists’ acrylic paints for the first time using atomistic molecular dynamics simulations.
Date: April 19, 2023
Creator: Iscen, Aysenur; Forero-Martinez, Nancy C.; Valsson, Omar & Kremer, Kurt
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.
System: The UNT Digital Library
Exposure to diesel exhaust particulates and desert sand dust generates microvesicle particles and platelet-activating factor agonists (open access)

Exposure to diesel exhaust particulates and desert sand dust generates microvesicle particles and platelet-activating factor agonists

The authors address the editor in their article, stating that the majority of the general population, particularly, servicemen and women deployed across the globe are exposed to various airborne hazards, including diesel exhaust particulate (DEP) and desert sand dust (DSD). Studies, including the author's study, have shown that exposure to ROS-generating pro-oxidative stressors ranging from environmental carcinogens to pollutants, including cigarette smoke, produces a class of potent phospholipid mediators, Platelet-activating factor (PAF) and PAF-like agonists via oxidative cleavage of lipid membrane glycerophosphocholines (GPCs).
Date: April 8, 2023
Creator: Thyagarajan, Anita; Rapp, Christine M.; Schneider, Leah; Lund, Amie K.; Travers, Jeffrey B. & Sahu, Ravi P.
System: The UNT Digital Library
Small businesses and government assistance during COVID-19: Evidence from the paycheck protection program in the U.S. (open access)

Small businesses and government assistance during COVID-19: Evidence from the paycheck protection program in the U.S.

Article describes how the COVID-19 pandemic has caused unprecedented losses for small businesses in cities across the globe. The authors' study examines the spatial distribution of PPP loans at the neighborhood level.
Date: April 3, 2023
Creator: Wang, Qingfang & Kang, Wei
System: The UNT Digital Library
The Arabidopsis gene co-expression network (open access)

The Arabidopsis gene co-expression network

Article presents an Arabidopsis gene co-expression network constructed using RNA-Seq datasets, which will serve as a useful resource for the Arabidopsis research community to gain insights into Arabidopsis gene interactions and functions.
Date: April 26, 2022
Creator: Burks, David J.; Sengupta, Soham; De, Ronika; Mittler, Ron & Azad, Rajeev K.
System: The UNT Digital Library
Probiotics Function as Immunomodulators in the Intestine in C57Bl/6 Male Mice Exposed to Inhaled Diesel Exhaust Particles on a High-Fat Diet (open access)

Probiotics Function as Immunomodulators in the Intestine in C57Bl/6 Male Mice Exposed to Inhaled Diesel Exhaust Particles on a High-Fat Diet

Article investigating the role of diesel exhaust particles (DEP) in conjunction with a high-fat (HF) diet on intestinal integrity and inflammation.
Date: March 15, 2022
Creator: Phillippi, Danielle T.; Daniel, Sarah; Nguyen, Kayla N.; Penaredondo, Bea Angella & Lund, Amie K.
System: The UNT Digital Library
Specific Changes in Arabidopsis thaliana Rosette Lipids during Freezing Can Be Associated with Freezing Tolerance (open access)

Specific Changes in Arabidopsis thaliana Rosette Lipids during Freezing Can Be Associated with Freezing Tolerance

This article explores the ability of Arabidopsis thaliana to recover after exposure to freezing temperatures.
Date: March 17, 2022
Creator: Vu, Hieu Sy; Shiva, Sunitha; Samarakoon, Thilani; Li, Maoyin; Sarowar, Sujon; Roth, Mary R. et al.
System: The UNT Digital Library
Momentum-Space Spin Antivortex and Spin Transport in Monolayer Pb (open access)

Momentum-Space Spin Antivortex and Spin Transport in Monolayer Pb

This article finds a nontrivial spin texture, spin antivortex, can appear at certain momenta on the Γ− K line in a 2D monolayer Pb on top of SiC.
Date: April 21, 2022
Creator: Yang, Kaijie; Wang, Yuanxi & Liu, Chao-Xing
System: The UNT Digital Library
Installation of synergistic binding sites onto porous organic polymers for efficient removal of perfluorooctanoic acid (open access)

Installation of synergistic binding sites onto porous organic polymers for efficient removal of perfluorooctanoic acid

Article reports a strategy to construct highly efficient perfluorooctanoic acid (PFOA) adsorbents by installing synergistic electrostatic/hydrophobic sites onto porous organic polymers (POPs).
Date: April 19, 2022
Creator: Liu, Xiongli; Zhu, Changjia; Yin, Jun; Li, Jixin; Zhang, Zhiyuan; Li, Jinli et al.
System: The UNT Digital Library
The Fractal Tapestry of Life: III Multifractals Entail the Fractional Calculus (open access)

The Fractal Tapestry of Life: III Multifractals Entail the Fractional Calculus

This article is the third essay advocating the use the (non-integer) fractional calculus (FC) to capture the dynamics of complex networks in the twilight of the Newtonian era. Herein, the focus is on drawing a distinction between networks described by monfractal time series extensively discussed in the prequels and how they differ in function from multifractal time series, using physiological phenomena as exemplars.
Date: March 10, 2022
Creator: West, Bruce J.
System: The UNT Digital Library
Connecting Low- and High-redshift Weak Emission-line Quasars via Hubble Space Telescope Spectroscopy of Lyα Emission (open access)

Connecting Low- and High-redshift Weak Emission-line Quasars via Hubble Space Telescope Spectroscopy of Lyα Emission

Article presents ultraviolet spectroscopy covering the Lyα + N v complex of six candidate low-redshift (0.9 < z < 1.5) weak emission-line quasars (WLQs) based on observations with the Hubble Space Telescope.
Date: April 14, 2022
Creator: Paul, Jeremiah D.; Plotkin, Richard M.; Shemmer, Ohad; Anderson, Scott F.; Brandt, W. N.; Fan, Xiaohui et al.
System: The UNT Digital Library
Natural variation and improved genome annotation of the emerging biofuel crop field pennycress (open access)

Natural variation and improved genome annotation of the emerging biofuel crop field pennycress

Article describing pennycress genome annotation improvements using a combination of long- and short-read transcriptome data obtained from RNA derived from embryos of 22 accessions, in addition to public genome and gene expression information.
Date: April 13, 2022
Creator: García Navarrete, Tatiana; Arias, Cintia Lucía; Mukundi, Eric; Alonso, Ana Paula & Grotewold, Erich
System: The UNT Digital Library
Opposing effects of MYZUS PERSICAE-INDUCED LIPASE 1 and jasmonic acid influence the outcome of Arabidopsis thaliana–Fusarium graminearum interaction (open access)

Opposing effects of MYZUS PERSICAE-INDUCED LIPASE 1 and jasmonic acid influence the outcome of Arabidopsis thaliana–Fusarium graminearum interaction

Article presents research that shows Arabidopsis MYZUS PERSICAE-INDUCED LIPASE 1 (MPL1), via its influence on limiting jasmonic acid (JA) accumulation, restricts Fusarium graminearum (Fg) infection.
Date: April 9, 2022
Creator: Alam, Syeda T.; Sarowar, Sujon; Mondal, Hossain A.; Makandar, Ragiba; Chowdhury, Zulkarnain; Louis, Joe et al.
System: The UNT Digital Library
Evaluation of nine condensed-phase force fields of the GROMOS, CHARMM, OPLS, AMBER, and OpenFF families against experimental cross-solvation free energies (open access)

Evaluation of nine condensed-phase force fields of the GROMOS, CHARMM, OPLS, AMBER, and OpenFF families against experimental cross-solvation free energies

This article builds on a previous study [Kashefolgheta et al., J. Chem. Theory. Comput., 2020, 16, 7556–7580] by extending the comparison to five additional force fields, GROMOS-54A7, GROMOS-ATB, OPLS-LBCC, AMBER-GAFF2, and OpenFF.
Date: April 30, 2021
Creator: Kashefolgheta, Sadra; Wang, Shuzhe; Acree, William E. (William Eugene) & Hünenberger, Philippe H.
System: The UNT Digital Library
Biophotons-and-emergence-of-quantum-coherencea-diffusion-entropy-analysisEntropy (open access)

Biophotons-and-emergence-of-quantum-coherencea-diffusion-entropy-analysisEntropy

This article studies the emission of photons from germinating seeds using an experimental technique designed to detect light of extremely small intensity. It analyzes the dark count signal without germinating seeds as well as the photon emission during the germination process.
Date: April 29, 2021
Creator: Benfatto, Maurizio; Pace, Elisabetta; Curceanu, Catalina; Scordo, Alessandro; Clozza, Alberto; Davoli, Ivan et al.
System: The UNT Digital Library
CRISPR/Cas9-Induced fad2 and rod1 Mutations Stacked With fae1 Confer High Oleic Acid Seed Oil in Pennycress (Thlaspi arvense L.) (open access)

CRISPR/Cas9-Induced fad2 and rod1 Mutations Stacked With fae1 Confer High Oleic Acid Seed Oil in Pennycress (Thlaspi arvense L.)

Article utilizing Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)/Cas9 technology to produce knockout mutations in the FATTY ACID DESATURASE2 (FAD2) and REDUCED OLEATE DESATURATION1 (ROD1) genes to increase oleic acid content in Pennycress (Thlaspi arvense L.). Results suggest that combinatorial knockout of ROD1 and FAE1 may be a viable route to commercially increase oleic acid content in pennycress seed oil whereas mutations in FAD2 will likely require at least partial function to avoid fitness trade-offs.
Date: April 22, 2021
Creator: Jarvis, Brice A.; Romsdahl, Trevor B.; McGinn, Michaela G.; Nazarenus, Tara J.; Cahoon, Edgar B.; Chapman, Kent Dean et al.
System: The UNT Digital Library
Oxygen atom transfer catalysis by dioxidomolybdenum(VI) complexes of pyridyl aminophenolate ligands (open access)

Oxygen atom transfer catalysis by dioxidomolybdenum(VI) complexes of pyridyl aminophenolate ligands

This article synthesizes and characterizes a series of new cationic dioxidomolybdenum(VI) complexes [MoO₂(Lⁿ)]PF₆ (2–5) with the tripodal tetradentate pyridyl aminophenolate ligands HL²-HL⁵.
Date: April 21, 2021
Creator: Hossain, Kamal; Schachner, Jörg A.; Haukka, Matti; Richmond, Michael G.; Mösch-Zanetti, Nadia C.; Lehtonen, Ari et al.
System: The UNT Digital Library
Proton reduction by phosphinidene-capped triiron clusters (open access)

Proton reduction by phosphinidene-capped triiron clusters

This article prepares and examines Bis(phosphinidene)-capped triiron carbonyl clusters, including electron rich derivatives formed by substitution with chelating diphosphines as proton reduction catalysts.
Date: April 20, 2021
Creator: Rahaman, Ahibur; Lisensky, George C.; Haukka, Matti; Tocher, Derek A.; Richmond, Michael G.; Colbran, Stephen B. et al.
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.
System: The UNT Digital Library
Childhood Asthma and Smoking: Moderating Effect of Preterm Status and Birth Weight (open access)

Childhood Asthma and Smoking: Moderating Effect of Preterm Status and Birth Weight

Article exploring the association between second-hand smoke exposure, asthma, and asthma severity in children ages 6-17 as well as the effect of birth weight and prematurity (BWP) on parental smoking and asthma. Results indicate that focused asthma interventions in children should inquire about BWP status as well as parental smoking and household smoke exposure to reduce asthma morbidity and mortality.
Date: April 17, 2021
Creator: Ogbu, Chukwuemeka E.; Ogbu, Stella C.; Khadka, Dibya & Kirby, Russell S.
System: The UNT Digital Library