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Deciphering pathogenicity and antibiotic resistance islands in methicillin-resistant Staphylococcus aureus genomes (open access)

Deciphering pathogenicity and antibiotic resistance islands in methicillin-resistant Staphylococcus aureus genomes

This article explores the use of an information-entropy-based gene clustering method for genomic island detection in MRSA.
Date: November 16, 2017
Creator: Jani, Mehul; Sengupta, Soham; Hu, Kelsey & Azad, Rajeev K.
Object Type: Article
System: The UNT Digital Library
Parametric nondifferentiable multiobjective fractional programming under (b;Ψ; Φ; ρ)-univexity (open access)

Parametric nondifferentiable multiobjective fractional programming under (b;Ψ; Φ; ρ)-univexity

This article is concerned with optimality conditions and duality results for nondifferentiable multi-objective fractional programming problems.
Date: September 27, 2018
Creator: Antczak, Tadeusz & Verma, Ram U.
Object Type: Article
System: The UNT Digital Library
Phylogenetic analysis of the CDGSH iron-sulfur binding domain reveals its ancient origin (open access)

Phylogenetic analysis of the CDGSH iron-sulfur binding domain reveals its ancient origin

This article reports on the origin, evolution, and diversification of the iron-sulfur (2Fe-2S) binding motif CDGSH.
Date: November 28, 2017
Creator: Sengupta, Soham; Nechushtai, Rachel; Jennings, Patricia A.; Onuchic, José N.; Padilla, Pamela A.; Azad, Rajeev K. et al.
Object Type: Article
System: The UNT Digital Library
Environmental vibrios represent a source of antagonistic compounds that inhibit pathogenic Vibrio cholerae and Vibrio parahaemolyticus strains (open access)

Environmental vibrios represent a source of antagonistic compounds that inhibit pathogenic Vibrio cholerae and Vibrio parahaemolyticus strains

This article predicts that marine-derived bacteria should inhibit Vibrio pathogens and may be a source of unique antibiotic compounds.
Date: March 10, 2017
Creator: Burks, David J.; Norris, Stephen; Kauffman, Kathryn M.; Joy, Abigail; Arevalo, Philip; Azad, Rajeev K. et al.
Object Type: Article
System: The UNT Digital Library
A random walk version of Robbins' problem: small horizon (open access)

A random walk version of Robbins' problem: small horizon

This article considers an analogous problem in which the observed random variables are the steps of a symmetric random walk. Assuming continuously distributed step sizes, it describes the optimal stopping rules for the cases n = 2 and n = 3 in two versions of the problem: a "full information" version in which the actual steps of the random walk are disclosed to the decision maker; and a "partial information" version in which only the relative ranks of the positions taken by the random walk are observed. When n = 3, the optimal rule and expected rank depend on the distribution of the step sizes. The authors give sharp bounds for the optimal expected rank in the partial information version, and fairly sharp bounds in the full information version.
Date: November 17, 2018
Creator: Allaart, Pieter C. & Allen, Andrew
Object Type: Article
System: The UNT Digital Library
Identification and characterization of a core set of ROS wave‐associated transcripts involved in the systemic acquired acclimation response of Arabidopsis to excess light (open access)

Identification and characterization of a core set of ROS wave‐associated transcripts involved in the systemic acquired acclimation response of Arabidopsis to excess light

Article reveal that the systemic transcriptomic response of plants to excess light stress is extensive in the context of systemic acquired acclimation and involves an early (2 min) and transient stage of transcript expression that includes thousands of genes.
Date: December 6, 2018
Creator: Zandalinas, Sara I.; Sengupta, Soham; Burks, David; Azad, Rajeev K. & Mittler, Ron
Object Type: Article
System: The UNT Digital Library
On the standard L-function for GSp2n × GL1 and algebraicity of symmetric fourth L-values for GL2 (open access)

On the standard L-function for GSp2n × GL1 and algebraicity of symmetric fourth L-values for GL2

This article proves an explicit integral representation—involving the pullback of a suitable Siegel Eisenstein series—for the twisted standard L-function associated to a holomorphic vector-valued Siegel cusp form of degree n and arbitrary level.
Date: May 6, 2020
Creator: Pitale, Ameya; Saha, Abhishek & Schmidt, Ralf
Object Type: Article
System: The UNT Digital Library
Uniformly de Bruijn Sequences and Symbolic Diophantine Approximation on Fractals (open access)

Uniformly de Bruijn Sequences and Symbolic Diophantine Approximation on Fractals

Article expanding the Intrinsic Diophantine approximation on fractals first proposed by K. Mahler (1984). This article describes and develops the theory of infinite de Bruijn sequences and answers questions related to Hausdorff dimension, Diophantine approximation, Dirichlet function, and height function.
Date: April 27, 2018
Creator: Fishman, Lior; Merrill, Keith & Simmons, David
Object Type: Article
System: The UNT Digital Library
Foias Numbers (open access)

Foias Numbers

This article identifies the principal features in Foias’ original proof and streamlines them into a general result. The result gives further evidence to the observation that the connection between the sequence with initial seed the Foias constant and the Prime Number Theorem must be fortuitous.
Date: December 30, 2018
Creator: Anghel, Nicolae
Object Type: Article
System: The UNT Digital Library
Square Roots of Real 3 x 3 Matrices vs. Quartic Polynomials with Real Zeros (open access)

Square Roots of Real 3 x 3 Matrices vs. Quartic Polynomials with Real Zeros

Article on the analogy between the description of the real square roots of 3x3 matrices and the zeros of the (depressed) real quartic polynomial, using the Cayley-Hamilton theorem.
Date: November 2017
Creator: Anghel, Nicolae
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
Collaborative Research: Conference: Texas-Oklahoma Representations and Automorphic forms (TORA) (open access)

Collaborative Research: Conference: Texas-Oklahoma Representations and Automorphic forms (TORA)

Data management plan for the grant, "Collaborative Research: Conference: Texas-Oklahoma Representations and Automorphic forms (TORA)."
Date: 2024-01-01/2026-12-31
Creator: Beneish, Lea
Object Type: Text
System: The UNT Digital Library
Dense Locally Finite Subgroups of Automorphism Groups of Ultraextensive Spaces (open access)

Dense Locally Finite Subgroups of Automorphism Groups of Ultraextensive Spaces

Article verifying a conjecture of Vershik by showing that Hall’s universal countable locally finite group can be embedded as a dense subgroup in the isometry group of the Urysohn space and in the automorphism group of the random graph. It shows the same for all automorphism groups of known infinite ultraextensive spaces.
Date: August 18, 2021
Creator: Etedadialiabadi, Mahmood; Gao, Su; Le Maître, François & Melleray, Julien
Object Type: Article
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.
Object Type: Article
System: The UNT Digital Library
Existence and nonexistence of radial solutions for semilinear equations with bounded nonlinearities on exterior domains (open access)

Existence and nonexistence of radial solutions for semilinear equations with bounded nonlinearities on exterior domains

Article studies radial solutions of ∆u + K(r)f(u) = 0 on the exterior of the ball of radius R > 0 centered at the origin in ℝᶰ where f is odd with f < 0 on (0, β), f > 0 on (β, δ), f ≡ 0 for u > δ, and where the function K(r) is assumed to be positive and K(r) → 0 as r → ∞.
Date: December 1, 2020
Creator: Iaia, Joseph A.
Object Type: Article
System: The UNT Digital Library
Existence of solutions for semilinear problems on exterior domains (open access)

Existence of solutions for semilinear problems on exterior domains

Article proves the existence of an infinite number of radial solutions to ∆u+K(r)f(u) = 0 on ℝᶰ such that limᵣ →∞ u(r) = 0 with prescribed number of zeros on the exterior of the ball of radius R > 0 where f is odd with f < 0 on (0, β), f > 0 on (β, ∞) with f superlinear for large u, and K(r) ∼ r ⁻ᵅ with α > 2(N − 1).
Date: April 15, 2020
Creator: Iaia, Joseph A.
Object Type: Article
System: The UNT Digital Library
Existence of Solutions for Sublinear Equations on Exterior Domains (open access)

Existence of Solutions for Sublinear Equations on Exterior Domains

This article proves the existence of an infinite number of radial solutions of Δu+K(r)ƒ(u) = 0, one with exactly n zeros for each nonnegative integer n on the exterior of the ball of radius R > 0, Bʀ, centered at the origin in ℝᴺ with u = 0 on ∂Bʀ and limᵣ→∞u(r) = 0 where N > 2, f is odd with ƒ < 0 on (0; β), ƒ > 0 on (β;∞), ƒ(u) ~ uᵖ with 0 < p < 1 for large u and K(r) ~ r-α with 0 < α < 2 for large r.
Date: October 10, 2017
Creator: Iaia, Joseph A.
Object Type: Article
System: The UNT Digital Library
Infinitely Many Solutions for a Semilinear Problem on Exterior Domains With Nonlinear Boundary Condition (open access)

Infinitely Many Solutions for a Semilinear Problem on Exterior Domains With Nonlinear Boundary Condition

This article proves the existence of an infinite number of radial solutions to Δu + K(r)ƒ(u) = 0 with a nonlinear boundary condition on the exterior of the ball of radius R centered at the origin in ℝᴺ.
Date: May 8, 2018
Creator: Joshi, Janak & Iaia, Joseph A.
Object Type: Article
System: The UNT Digital Library
Existence and Nonexistence of Solutions for Sublinear Problems With Prescribed Number of Zeros on Exterior Domains (open access)

Existence and Nonexistence of Solutions for Sublinear Problems With Prescribed Number of Zeros on Exterior Domains

This article proves the existence of radial solutions of Δu + K(r)ƒ(u) = 0 on the exterior of the ball, of radius R, centered at the origin in ℝᴺ such that limᵣ→∞u(r) = 0 if R > 0 is sufficiently small.
Date: May 16, 2017
Creator: Joshi, Janak
Object Type: Article
System: The UNT Digital Library
Existence and Nonexistence of Solutions for Sublinear Equations on Exterior Domains (open access)

Existence and Nonexistence of Solutions for Sublinear Equations on Exterior Domains

This article studies radial solutions of Δu + 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 where ƒ is odd with ƒ < 0 on (0; β), ƒ > 0 on (β;∞), f(u) ~ uᵖ with 0 < p < 1 for large u and K(r) ~ r⁻ᵅ for large r.
Date: September 13, 2017
Creator: Iaia, Joseph A.
Object Type: Article
System: The UNT Digital Library
Permutation Complexity Related to the Letter Doubling Map (open access)

Permutation Complexity Related to the Letter Doubling Map

Article presented at the 8th International Conference Words 2011 in Prague, Czech Republic. This article investigates the combinatorial complexity of infinite permutations on N associated with the image of uniformly recurrent aperiodic binary words under the letter doubling map.
Date: August 17, 2011
Creator: Widmer, Steven
Object Type: Article
System: The UNT Digital Library
On Polish groups admitting non-essentially countable actions (open access)

On Polish groups admitting non-essentially countable actions

Article addresses the question whether every Polish group that is not locally compact admits a Borel action on a standard Borel space whose associated orbit equivalence relation is not essentially countable. The authors e answer this question positively for the class of all Polish groups that embed in the isometry group of a locally compact metric space.
Date: September 17, 2019
Creator: Kechris, Alexander S.; Malicki, Maciej; Panagiotopoulos, Aristotelis & Zielinski, Joseph
Object Type: Article
System: The UNT Digital Library
Badly approximable points on self-affine sponges and the lower Assouad dimension (open access)

Badly approximable points on self-affine sponges and the lower Assouad dimension

This article highlights a connection between Diophantine approximation and the lower Assouad dimension by using information about the latter to show that the Hausdorff dimension of the set of badly approximable points that lie in certain non-conformal fractals, known as self-affine sponges, is bounded below by the dynamical dimension of these fractals. The results, which are the first to advance beyond the conformal setting, encompass both the case of Sierpiński sponges/carpets (also known as Bedford–McMullen sponges/carpets) and the case of Barański carpets.
Date: June 20, 2017
Creator: Das, Tushar; Fishman, Lior; Simmons, David & Urbański, Mariusz
Object Type: Article
System: The UNT Digital Library
On counting cuspidal automorphic representations for GSp(4) (open access)

On counting cuspidal automorphic representations for GSp(4)

Article
Date: April 15, 2021
Creator: Roy, Manami; Schmidt, Ralf & Yi, Shaoyun
Object Type: Article
System: The UNT Digital Library