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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.
System:
The UNT Digital Library
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
System:
The UNT Digital Library
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.
System:
The UNT Digital Library
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.
System:
The UNT Digital Library
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
System:
The UNT Digital Library
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
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
System:
The UNT Digital Library