UNT Scholarly Works - 2,116 Matching Results

Search Results

prev Results: 793 - 816 next
open access

Body shape differences in a pair of closely related Malawi cichlids and their hybrids: Effects of genetic variation, phenotypic plasticity, and transgressive segregation

Description: Article describes study which investigated the contributions of both genetic and plastic components for differences in body shape in two species of Lake Malawi cichlids using wild‐caught specimens and a common garden experiment.
Date: May 10, 2017
Creator: Husemann, Martin; Tobler, Michael; McCauley, Cagney; Ding, Baoqing & Danley, Patrick D.
Partner: University of North Texas
open access

Absolute band alignment at semiconductor-water interfaces using explicit and implicit descriptions for liquid water

Description: Article presents a rigorous and systematic study of the band alignment of semiconductors in aqueous solutions by contrasting a range of hybrid explicit/implicit models against explicit atomistic simulations based on density-functional theory.
Date: October 11, 2019
Creator: Hörmann, Nicolas; Guo, Zhendong; Ambrosio, Francesco; Andreussi, Oliviero; Pasquarello, Alfredo & Marzari, Nicola
Partner: UNT College of Science
open access

Existence and Nonexistence of Solutions for Semilinear Equations on Exterior Domains

Description: This article studies radial solutions of Δu + K(r)ƒ(u) = 0 on the exterior of the ball of radius R > 0 centered at the origin in ℝᴺ where ƒ is odd with ƒ < 0 on (0,ß), ƒ > 0 on (β, δ), ƒ ≡ 0 for u > δ, and where the function K(r) is assumed to be positive and K(r) → 0 as r → ∞.
Date: August 22, 2016
Creator: Iaia, Joseph A.
Partner: UNT College of Arts and Sciences
open access

Existence and Nonexistence of Solutions for Sublinear Equations on Exterior Domains

Description: 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.
Partner: UNT College of Science
open access

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

Description: 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: September 23, 2019
Creator: Iaia, Joseph A.
Partner: UNT College of Science
open access

Existence of Solutions for Sublinear Equations on Exterior Domains

Description: 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.
Partner: UNT College of Science
open access

Loitering at the hilltop on exterior domains

Description: 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.
Partner: UNT College of Arts and Sciences
open access

Spreading of Charged Micro-Droplets

Description: This article studies the spreading of a charged microdroplet using the lubrication approximation.
Date: September 16, 2013
Creator: Iaia, Joseph A.
Partner: UNT College of Arts and Sciences
open access

The Spreading of Charged Micro-Droplets

Description: This article considers the analysis of the Betelu-Fontelos model of the spreading of a charged microdroplet on a at dielectric surface whose spreading is driven by surface tension and electrostatic repulsion.
Date: January 20, 2015
Creator: Iaia, Joseph A.
Partner: UNT College of Arts and Sciences
open access

Photoelectron Spectroscopic Study of the Oxyallyl Diradical

Description: Article on a photoelectron spectroscopic study of the oxyallyl diradical.
Date: February 16, 2011
Creator: Ichino, Takatoshi; Villano, Stephanie M.; Gianola, Adam J.; Goebbert, Daniel J.; Velarde, Luis; Sanov, Andrei et al.
Partner: UNT College of Arts and Sciences
open access

Dynamics of Electroencephalogram Entropy and Pitfalls of Scaling Detection

Description: This article discusses dynamics of electroencephalogram entropy and pitfalls of scaling detection. Herein the authors study the time evolution of diffusion entropy to elucidate the scaling of EGG time series.
Date: March 10, 2010
Creator: Ignaccolo, Massimiliano; Latka, Miroslaw; Jernajczyk, Wojciech; Grigolini, Paolo & West, Bruce J.
Partner: UNT College of Arts and Sciences
open access

Stromatolites: why do we care?

Description: Article discussing stromatolites. The authors apply the method of Diffusion Entropy (DE) to the study of stromatolites by means of a two-dimensional procedure that makes it possible for us to compare the DE analysis to the results of a compression method.
Date: July 14, 2011
Creator: Ignaccolo, Massimiliano; Schwettmann, Arne; Failla, Roberto; Storrie-Lombardi, Michael C. & Grigolini, Paolo
Partner: UNT College of Arts and Sciences

Public Libraries and Democratization in Three Developing Countries: Exploring the Role of Social Capital

Description: This article explores the role of social capital. The authors develop a theoretical framework intended to facilitate systematic investigation of the contributions public libraries may make to democratization.
Date: March 2012
Creator: Ignatow, Gabriel; Webb, Sarah M.; Poulin, Michelle; Parajuli, Ramesh; Fleming, Peter; Batra, Shika et al.
Partner: UNT College of Public Affairs and Community Service
open access

Quantifying Access Disparities in Response Plans

Description: This article develops and explores data driven methods to quantify vulnerabilities in the context of response plans, addressing limitations on the availability, granularity, and currency of data to identify vulnerable populations.
Date: January 15, 2016
Creator: Indrakanti, Saratchandra; Mikler, Armin R.; O'Neil II, Martin & Tiwari, Chetan
Partner: UNT College of Engineering
open access

Genetic Mutations in the S-loop of Human Glutathione Synthetase: Links Between Substrate Binding, Active Site Structure and Allostery

Description: This article uses molecular dynamics simulations and experimental point mutations to probe the role of S-loop residues in tertiary structure, substrate binding, and allosteric communication.
Date: November 29, 2018
Creator: Ingle, Brandall L.; Shrestha, Bibesh; De Jesus, Margarita C.; Conrad-Webb, Heather M.; Anderson, Mary E. & Cundari, Thomas R., 1964-
Partner: UNT College of Science
open access

Phylogenetic analysis of eukaryotic NEET proteins uncovers a link between a key gene duplication event and the evolution of vertebrates

Description: This article describes the use of three members of the human NEET protein family (CISD1, mitoNEET; CISD2, NAF-1 or Miner 1; and CISD3, Miner2) as guides to conduct a phylogenetic analysis of eukaryotic NEET proteins and their evolution.
Date: February 16, 2017
Creator: Inupakutika, Madhuri A.; Sengupta, Soham; Nechushtai, Rachel; Jennings, Patricia A.; Onuchic, José N.; Azad, Rajeev K. et al.
Partner: UNT College of Arts and Sciences
open access

Preface to the Joint Proceedings of the University of North Texas Department of Political Science National Science Foundation Research Experience for Undergraduates and the American Political Science Association Undergraduate Research Fellows Program

Description: Introduction to the special section featuring the joint proceedings of the University of North Texas Department of Political Science National Science Foundation Research Experience for Undergraduates and the American Political Science Association Undergraduate Research Fellows Program in the 2013 edition of The Eagle Feather.
Date: 2013
Creator: Ishiyama, John T. & Greig, J. Michael
Partner: UNT Honors College
Back to Top of Screen