Resource Type

Amplification of photoacoustic effect in bimodal polymer particles by self-quenching of indocyanine green (open access)

Amplification of photoacoustic effect in bimodal polymer particles by self-quenching of indocyanine green

This article presents a new type of bimodal contrast agent that is based on the self-quenching of indocyanine green (ICG) encapsulated in a biocompatible and biodegradable polymer shell.
Date: August 23, 2019
Creator: Mokrousov, Maksim D.; Novoselova, Marina V.; Nolan, Jackie; Harrington, Walter; Rudakovskaya, Polina; Bratashov, Daniil N. et al.
System: The UNT Digital Library
Fundamentals of three-dimensional Yb-fiber Nd:YAG laser machining of structural bone (open access)

Fundamentals of three-dimensional Yb-fiber Nd:YAG laser machining of structural bone

This article presents a study that aims to understand the fundamental aspects of the laser-bone interaction in three-dimensional laser machining of the bone through an integrated experimental-computational approach.
Date: June 28, 2019
Creator: Dahotre, Narendra B.; Pantawane, Mangesh V.; Robertson, William B.; Khan, Riaz J. K. & Fick, Daniel P.
System: The UNT Digital Library
Existence of Infinitely Many Solutions for Singular Semilinear Problems on Exterior Domains (open access)

Existence of Infinitely Many Solutions for Singular Semilinear Problems on Exterior Domains

Article proving the existence of infinitely many radial solutions of ∆𝓊+𝐾(𝓇) ƒ (𝓊) = 0 on the exterior of the ball of radius R > 0, BR, centered at the origin in ℝᴺ with u = 0 on ∂BR and lim/r→∞ 𝓊(𝓇) = 0 where N > 2, f is odd with f < 0 on (0, β), f > 0 on (β, ∞), f is superlinear for large u, ƒ(𝓊) ∼ −1/(|𝓊|𝘲⁻¹𝓊) with 0 < q < 1 for small u, and 0 < 𝐾(𝓇) ≤ 𝐾₁/r∝ with 𝑁 + q(𝑁 − 2) < ∝ < 2(𝑁− 1) for large r.
Date: March 9, 2018
Creator: Iaia, Joseph A.
System: The UNT Digital Library
Rapid embryonic accretion of docosahexaenoic acid (DHA) in the brain of an altricial bird with an aquatic-based maternal diet (open access)

Rapid embryonic accretion of docosahexaenoic acid (DHA) in the brain of an altricial bird with an aquatic-based maternal diet

This article communicates the results of a study conducted on red-winged blackbirds where brain phospholipid composition during development was measured and diet was manipulated. The dietary study confirmed that nestling brains are sensitive to fatty acid supply. The findings of this article suggest that Red-winged blackbirds may be able to advance cognitive development relative to other altricial species owing to their aquatic maternal diet.
Date: July 23, 2018
Creator: Price, Edwin R.; Sirsat, Sarah K. G.; Sirsat, Tushar S.; Venables, Barney J. & Dzialowski, Edward M. (Edward Michael)
System: The UNT Digital Library
Spectral Dynamics and Therapeutic Implications of the Theta/Alpha Crossover in Alpha-Theta Neurofeedback (open access)

Spectral Dynamics and Therapeutic Implications of the Theta/Alpha Crossover in Alpha-Theta Neurofeedback

Article describes study examining 182 alpha-theta session graphs from 10 subject case files for interactions between frequency band activity and subject reports of imagery or biographical memories during crossovers, as well as treatment outcomes.
Date: August 23, 2016
Creator: Johnson, Mark L.; Bodenhamer-Davis, Eugenia; Bailey, Laurie & Gates, Michael S.
System: The UNT Digital Library
Ending the Evidentiary & Insurance Reimbursement Bias Against Neurofeedback to Treat Attention Deficit/Hyperactivity Disorder: It Will Take Clinician Action in Addition to the Compelling Science (open access)

Ending the Evidentiary & Insurance Reimbursement Bias Against Neurofeedback to Treat Attention Deficit/Hyperactivity Disorder: It Will Take Clinician Action in Addition to the Compelling Science

This article argues against the treatment of Attention deficit/hyperactivity disorder (ADHD) with stimulant medication and behavior therapy, which are also typically reimbursed by healthcare insurers. Evidence suggests that these treatments fail to result in sustained benefit for the vast majority of children who receive them as demonstrated in the NIMH-funded MTA Cooperative study, the gold standard study in ADHD treatment effectiveness research. The authors instead look at the use of neurofeedback which is uniquely suited to treat the neuronal dysregulation that is common in people diagnosed with ADHD. However, healthcare insurers do not regularly cover this treatment method, so the authors direct readers to resources to appeal insurers' denial of coverage for neurofeedback.
Date: August 23, 2016
Creator: Pigott, H. Edmond; Bodenhamer-Davis, Eugenia; Davis, Richard E. & Harbin, Henry
System: The UNT Digital Library
Attention-Based Dense Point Cloud Reconstruction From a Single Image (open access)

Attention-Based Dense Point Cloud Reconstruction From a Single Image

Article proposes a two-stage training dense point cloud generation network.
Date: September 23, 2019
Creator: Lu, Qiang; Xiao, Mingjie; Lu, Yiyang; Yuan, Xiaohui & Yu, Ye
System: The UNT Digital Library
Space-charge-based electrostatic plasma confinement involving relaxed plasma species (open access)

Space-charge-based electrostatic plasma confinement involving relaxed plasma species

In this article, a numerical study is reported on the equilibrium properties of a surface-emitted or edge-confined non-drifting plasma. A self-consistent finite-differences evaluation of the electrostatic potential is carried out for a non-neutral plasma that follows a Boltzmann density distribution.
Date: October 23, 2012
Creator: Pacheco, J. L.; Ordonez, Carlos A. & Weathers, Duncan L.
System: The UNT Digital Library
Loitering at the hilltop on exterior domains (open access)

Loitering at the hilltop on exterior domains

In this article, the author proves the existence of an infinite number of radial solutions of Δu+f(u)=0 on the exterior of the ball of radius R>0 centered at the origin and f is odd with f<0 on (0,β), f>0 on (β,δ), and f≡0 for u>δ. The primitive F(u)=∫u0f(t)dt has a "hilltop" at u=δ which allows one to use the shooting method and ODE techniques to prove the existence of solutions.
Date: November 23, 2015
Creator: Iaia, Joseph A.
System: The UNT Digital Library
Determination of molar refractions and Abraham descriptors for tris(acetylacetonato)chromium(iii), tris(acetylacetonato)iron(iii) and tris(acetylacetonato)cobalt(iii) (open access)

Determination of molar refractions and Abraham descriptors for tris(acetylacetonato)chromium(iii), tris(acetylacetonato)iron(iii) and tris(acetylacetonato)cobalt(iii)

Article describes study in which researchers determined molar refractions of tris(acetylacetonato)chromium(III), tris(acetylacetonato)iron(III) and tris(acetylacetonato)cobalt(III).
Date: October 23, 2017
Creator: Abraham, M. H. (Michael H.); Acree, William E. (William Eugene); Fucaloro, Anthony F. & Zanella, Andrew W.
System: The UNT Digital Library
Bringing the World to the Classroom through Videoconferencing and Project-based Learning (open access)

Bringing the World to the Classroom through Videoconferencing and Project-based Learning

Article describes a case study of a Texas-based school that implemented global projects to connect their students with many states and countries as a platform for integrating collaboration and communication skills, technology tools, and cultural diversity into an existing curriculum.
Date: April 23, 2014
Creator: Hopper, Susan B.
System: The UNT Digital Library
Artificially structured boundary for confinement of effectively unmagnetized cryogenic antimatter plasmas (open access)

Artificially structured boundary for confinement of effectively unmagnetized cryogenic antimatter plasmas

The article is from conference proceedings that discuss an artificially structured boundary (ABS) considered to consist of a spatially periodic arrangement of electrostatically plugged magnetic cusps. As envisioned, a non-neutral positron plasma could be confined by an ASB along its edge, and the space charge of the positron plasma would serve to confine an antiproton plasma. If the conditions of the two-species plasma are suitable, production of antihydrogen via three-body recombination for antimatter gravity studies may be possible.
Date: January 23, 2018
Creator: Hedlof, R. M. & Ordonez, Carlos A.
System: The UNT Digital Library
One thousand plant transcriptomes and the phylogenomics of green plants (open access)

One thousand plant transcriptomes and the phylogenomics of green plants

Article describes the results of the One Thousand Plant Transcriptomes Initiative's efforts to sequence the vegetative transcriptomes of 1,124 species that span the diversity of plants in a broad sense (Archaeplastida), including green plants (Viridiplantae), glaucophytes (Glaucophyta) and red algae (Rhodophyta).
Date: October 23, 2019
Creator: One Thousand Plant Transcriptomes Initiative
System: The UNT Digital Library
Altered expression of ionotropic L-Glutamate receptors in aged sensory neurons of Aplysia californica (open access)

Altered expression of ionotropic L-Glutamate receptors in aged sensory neurons of Aplysia californica

Article describes study in which mRNA expression of iGluR was quantified in two sensory neuron clusters of two cohorts of Aplysia californica (Aplysia) at both sexual maturity (~8 months) and advanced age (~12 months) in order to examine if changes in ionotropic L-Glu receptor (iGluR) transcription underlie reduced physiology8
Date: May 23, 2019
Creator: Greer, Justin B.; Mager, Edward M. & Fieber, Lynne A.
System: The UNT Digital Library
Mechanical Properties of Chemically Modified Clay (open access)

Mechanical Properties of Chemically Modified Clay

Article uses first principles methods to compare the mechanical properties of lizardite Mg3(Si2O5)(OH)4, a polymorph of serpentine family, with the new compounds derived by substituting Mg ions with isovalent elements from different chemical groups.
Date: September 23, 2019
Creator: Gusmão, M. S.; Gopal, Priya; Siloi, Ilaria; Curtarolo, Stefano; Fornari, Marco & Buongiorno Nardelli, Marco
System: The UNT Digital Library
Corrosion Behavior of Selectively Laser Melted CoCrFeMnNi High Entropy Alloy (open access)

Corrosion Behavior of Selectively Laser Melted CoCrFeMnNi High Entropy Alloy

The article focuses on a study that widens the toolbox to manufacture HEAs with exceptional corrosion resistance by additive manufacturing. CoCrFeMnNi high entropy alloys (HEAs) were additively manufactured (AM) by laser powder bed fusion and their corrosion resistance in 3.5 wt% NaCl solution was studied by potentiodynamic polarization and electrochemical impedance spectroscopy tests. A systematic study of AM CoCrFeMnNi HEAs’ porosity under a wide range of laser processing parameters was conducted and a processing map was constructed to identify the optimal laser processing window for CoCrFeMnNi HEAs.
Date: September 23, 2019
Creator: Ren, Jie; Mahajan, Chaitanya; Liu, Liang; Follette, David; Chen, Wen & Mukherjee, Sundeep
System: The UNT Digital Library
Activation Volume and Energy for Dislocation Nucleation in Multi-Principal Element Alloys (open access)

Activation Volume and Energy for Dislocation Nucleation in Multi-Principal Element Alloys

Paper describes study evaluating incipient plasticity in multi-principal element alloys, CoCrNi, CoCrFeMnNi, and Al0.1CoCrFeNi by nano-indentation and compared with pure Ni.
Date: February 23, 2019
Creator: Mridha, Sanghita; Sadeghilaridjani, Maryam & Mukherjee, Sundeep
System: The UNT Digital Library
Evaluation of a Chicken 600K SNP genotyping array in non-model species of grouse (open access)

Evaluation of a Chicken 600K SNP genotyping array in non-model species of grouse

This article tested the cross-species application of the Affymetrix 600K Chicken SNP array in five species of North American prairie grouse (Centrocercus and Tympanuchus genera). This study study provided evidence for successful cross-species application of the chicken SNP array in grouse which diverged ca. 37 mya from the chicken lineage. As far as the authors are concerned, this is the first reported application of a SNP array in non-passerine birds, and it demonstrates the feasibility of using commercial SNP arrays in research on non-model bird species.
Date: October 19, 2018
Creator: Minias, Piotr; Dunn, Peter O.; Whittingham, Linda A.; Johnson, Jeff A. & Oyler-McCance, Sara
System: The UNT Digital Library
Influence of ordered L1₂ precipitation on strain-rate dependent mechanical behavior in a eutectic high entropy alloy (open access)

Influence of ordered L1₂ precipitation on strain-rate dependent mechanical behavior in a eutectic high entropy alloy

This article focuses on Al0.7CoCrFeNi, a lamellar dual-phase (fcc + B2) precipitation-strengthenable eutectic high entropy alloy. The back-stresses from the coherent L12 precipitate were insufficient to cause improvement in twin nucleation, owing to elevated twinning stress under quasi-static testing. However, under dynamic testing high density of twins were observed.
Date: April 23, 2019
Creator: Gwalani, Bharat; Gangireddy, Sindhura; Zheng, Yufeng; Soni, V.; Mishra, Rajiv & Banerjee, Rajarshi
System: The UNT Digital Library
Synthesis of uniform single layer tungsten disulfides for tunable photoluminescence (open access)

Synthesis of uniform single layer tungsten disulfides for tunable photoluminescence

This article explores single-layer tungsten disulfides (WS₂) because of their unique tunable bandgap. The authors report the scalable synthesis of uniform single-layer WS2 film by a two-step chemical vapor deposition (CVD) method followed by a laser thinning process.
Date: November 23, 2017
Creator: Park, Juhong; Kim, Min Su; Cha, Eunho; Kim, Jeongyong & Choi, Wonbong
System: The UNT Digital Library
Sodium Hydroxide-Free Soy Protein Isolate-Based Films Crosslinked by Pentaerythritol Glycidyl Ether (open access)

Sodium Hydroxide-Free Soy Protein Isolate-Based Films Crosslinked by Pentaerythritol Glycidyl Ether

This article examines the chemical structures of biodegradable films created out of soy protein isolate (SPI), sodium dodecylbenzenesulfonate (SDBS) and pentaerythritol glycidyl ether (PEGE). The thermal stabilities of the films were also examined by means of the thermo-gravimetric analysis.
Date: October 19, 2018
Creator: Wu, Yingji; Cai, Liping; Wang, Chen; Mei, Changtong & Shi, Sheldon
System: The UNT Digital Library
Game design for visually-impaired individuals: Creativity and innovation theories and sensory substitution devices influence on virtual and physical navigation skills (open access)

Game design for visually-impaired individuals: Creativity and innovation theories and sensory substitution devices influence on virtual and physical navigation skills

This article examines the design elements of three virtual reality games for functionality and transferability to orientation and mobility education for visually impaired individuals.
Date: October 23, 2018
Creator: Baker, Rose M.; Ramos, Karina & Turner, John
System: The UNT Digital Library
Excited State Charge Separation in Solution and in Electropolymerized Films of Terthiophene-Fullerene Dyad and Phenothiazine-Terthiophene-Fullerene Triad (open access)

Excited State Charge Separation in Solution and in Electropolymerized Films of Terthiophene-Fullerene Dyad and Phenothiazine-Terthiophene-Fullerene Triad

This article reports synthesis, X-ray structure and excited state events occurring in a terthiophene-C₆₀ dyad (TT-C₆₀), and a phenothiazine-terthiophene-C₆₀ triad (PTZ-TT-C₆₀).
Date: December 23, 2016
Creator: Bodenstedt, Kurt; Lim, G. N.; Vdouychenko, Mark; Estrada, Tania; Subbaiyan, Navaneetha K.; Nesterov, Vladimir N. et al.
System: The UNT Digital Library
Delta-Flux: An Eddy Covariance Network for a Climate-Smart Lower Mississippi Basin (open access)

Delta-Flux: An Eddy Covariance Network for a Climate-Smart Lower Mississippi Basin

This article describes the rationale to create the new Delta-Flux network, which will coordinate efforts to quantify carbon and water budgets at seventeen eddy covariance flux tower sites in the Lower Mississippi River Basin.
Date: February 23, 2017
Creator: Runkle, Benjamin R. K.; Rigby, James R.; Reba, Michele L.; Anapalli, Saseendran S.; Bhattacharjee, Joydeep; Krauss, Ken W. et al.
System: The UNT Digital Library