Reflectionless Boundary Propagation Formulas for Partial Wave Solutions to the Wave Equation (open access)

Reflectionless Boundary Propagation Formulas for Partial Wave Solutions to the Wave Equation

This article considers solutions to the wave equation in 3+1 spacetime dimensions whose data is compactly supported at some initial time.
Date: November 28, 1995
Creator: Navarro, Jaime & Warchall, Henry A.
Object Type: Article
System: The UNT Digital Library
Square roots of real 2 x 2 matrices (open access)

Square roots of real 2 x 2 matrices

In this article, the author investigates the real 2 x 2 matrices which admit real square roots.
Date: November 2013
Creator: Anghel, Nicolae
Object Type: Article
System: The UNT Digital Library
Activation of apoptosis in NAF-1-deficient human epithelial breast cancer cells (open access)

Activation of apoptosis in NAF-1-deficient human epithelial breast cancer cells

This article shows that small hairpin RNA-mediated suppresion of NAF-1 results in the activation of apoptosis in epithelial breast cancer cells and xenograft tumors.
Date: November 11, 2015
Creator: Holt, Sarah H.; Darash-Yahana, Merav; Sohn, Yang Sung; Song, Luhua; Karmi, Ola; Tamir, Sagi et al.
Object Type: Article
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.
Object Type: Article
System: The UNT Digital Library
Generalized parameter-free duality models in discrete minmax fractional programming based on second-order optimality conditions (open access)

Generalized parameter-free duality models in discrete minmax fractional programming based on second-order optimality conditions

This article discusses the construction of six generalized second-order parameter-free duality models, and proves several weak, strong, and strict converse duality theorems for a discrete minmax fractional programming problem using two partitioning schemes and various types of generalized second-order (ℱ, β, ɸ, 𝜌, θ, 𝑚)-univexity assumptions.
Date: November 8, 2016
Creator: Zalmai, G. J. & Verma, Ram U.
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
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
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
Adjustment for Local Ancestry in Genetic Association Analysis of Admixed Populations captions transcript

Adjustment for Local Ancestry in Genetic Association Analysis of Admixed Populations

Presentation on the consideration of local ancestry of admixed populations, or populations comprised of genetically distinct ancestral populations which can alter their gene flow in unique ways. It was presented at the UNT Transdisciplinary Conference on Ancestral Genomics Research which was held virtually on November 20-21, 2020.
Date: November 21, 2020
Creator: Wang, Xuexia
Object Type: Video
System: The UNT Digital Library
Role of ribosomal RNA released from red cells in blood coagulation in zebrafish and humans (open access)

Role of ribosomal RNA released from red cells in blood coagulation in zebrafish and humans

This article identifies that an rRNA released in hemolysis activates clotting in human and zebrafish plasma. Furthermore, it shows that fish Hgfac plays a role in rRNA-mediated activation of coagulation.
Date: November 17, 2021
Creator: Alharbi, Abdulmajeed; Iyer, Neha; Al Qaryoute, Ayah; Raman, Revathi; Burks, David J.; Azad, Rajeev K. et al.
Object Type: Article
System: The UNT Digital Library