Browsing Department of Mathematics by Title
Now showing items 110-129 of 570
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The effect of the HIV/AIDS epidemic on Africa's truck drivers
(American Institute of Mathematical SciencesMathematics Department, University of Texas at Arlington, 2005-10)The AIDS epidemic is having a growing impact on the transport sector of the economy of sub-Saharan Africa, where long-distance truck drivers are at an increased risk of infection due to their frequent contacts with ... -
Effects Of Discrete Time Delays And Parameters Variation On Dynamical Systems
(Mathematics, 2013-10-23)To understand the effects of discrete time delays and of parameters variation on certain biological system models, we first consider a Delay Differential Equation model of human immunodeficiency virus (HIV). We investigate ... -
Effects of education, vaccination and treatment on HIV transmission in homosexuals with genetic heterogeneity
(Department of Mathematics, University of Texas at Arlington, 2004)Genetic studies report the existence of a mutant allele Δ32 of CC R5 chemokine receptor gene at high allele frequencies ( 10%) in Caucasian populations. The presence of the allele is believed to provide partial or full ... -
Effects Of Vector Migration On Sylvatic Trypanosoma Cruzi Transmission
(Mathematics, 2012-07-25)Vector-borne diseases have had a major impact on global health concerns since their discovery in the 1800's. A vector-borne disease is one transmitted to human or animal host via an invertebrate vector (usually an insect). ... -
Efficiency Contours for Estimators of Reliability in a 2-Parameter Exponential Failure Model
(University of Texas at ArlingtonDepartment of Mathematics, 1977-05)**Please note that the full text is embargoed** ABSTRACT: When there are available several point estimators of some parametric function, it would seem desirable to make a comparison among the estimators based on some measure ... -
Efficiency in Estimation of Mean Time to Failure in a Two-Parameter Exponential Failure Model
(University of Texas at ArlingtonDepartment of Mathematics, 1977-05)**Please note that the full text is embargoed** ABSTRACT: When comparing two point estimators of some parametric function, Pitman-closeness efficiency gives the "odds" in favor of one of the estimators being closer to ... -
Efficient Nonlinear Parameter Estimation for Exponential Type, Least Square Approximation
(University of Texas at ArlingtonDepartment of Mathematics, 1985-03)**Please note that the full text is embargoed** ABSTRACT: A computer algorithm is described for fitting data sets by least squares to the functions [see pdf for notation]. A non matrix form of Newton's method is utilized ... -
Electron Attraction as a Mechanism for the Chemical Bond of Ground State H2
(University of Texas at ArlingtonDepartment of Mathematics, 1993)**Please note that the full text is embargoed** ABSTRACT: Previously, electron attraction, incorporated into classical models of the chemical bond, yielded correct bond lengths and vibrational frequencies for all the ... -
An Elementary Algebraic Method for Approximating Average Radii of First and Secong Ring Electrons
(University of Texas at ArlingtonDepartment of Mathematics, 1984-11)**Please note that the full text is embargoed** ABSTRACT: In this paper, experimental ionization energies are used to determine algebraic equations whose solutions approximate relativistic quantum mechanical estimates ... -
Elliptic Regularization for a Class of Strongly Nonlinear Degenerate Eigenvalue Problems on Orlicz-Sobolev Spaces. I: The Ode Case
(University of Texas at ArlingtonDepartment of Mathematics, 1985-01)**Please note that the full text is embargoed** ABSTRACT: This paper is devoted to proving sharp Holder-Lipschitz regularity estimates for the eigensolutione to a class of degenerate Sturm-Liouville eigenvalue problems ... -
Energy Conserving Numerical Solutions of Simplified Turbulence Equations
(University of Texas at ArlingtonDepartment of Mathematics, 1990)**Please note that the full text is embargoed** ABSTRACT: The purpose of this paper is to develop some numerical methods for solving non-Hamiltonian nonintegrable simplified turbulence equations which conserve the energy. ... -
The Energy States of Helium via Bohr-Einstein Determinism
(University of Texas at ArlingtonDepartment of Mathematics, 1984-12)**Please note that the full text is embargoed** ABSTRACT: Correct ground, ionization, singly excited and doubly (excited energy states are deduced deterministically by a direct extension of Bohr's method for hydrogen. ... -
Energy States of Two-Electron Systems Via Bohr Determinism
(University of Texas at ArlingtonDepartment of Mathematics, 1983-01)**Please note that the full text is embargoed** ABSTRACT: Correct ground, ionization, and excited states for two-electron systems are deduced deterministically by a direct extension of Bohr's method for hydrogen. The theory ... -
An epidemiological approach to the spread of political third parties
(American Insttitue of Mathematical SciencesMathematics Department, University of Texas at Arlington, 2011-05)Third political parties are influential in shaping American politics. In this work we study the spread of a third party ideology in a voting population where we assume that party members/activists are more influential in ... -
Equations with Unbounded Delay: a Survey
(University of Texas at ArlingtonDepartment of Mathematics, 1979-08)**Please note that the full text is embargoed** ABSTRACT: The theory of equations with delay has been considerably developed during the past 30 years. The first book dedicated to this subject has been published by A. D. ... -
Error Estimates of Solutions and Mean of Solutions of Stochastic Differential Systems
(University of Texas at ArlingtonDepartment of Mathematics, 1981-08)**Please note that the full text is embargoed** ABSTRACT: Stochastic differential equations are considered. Estimates in terms of statistical properties are given for the difference between the solutions and solutions ... -
An Estimate for the Roots of Random Algebraic Polynomial with Application
(University of Texas at ArlingtonDepartment of Mathematics, 1981-06)**Please note that the full text is embargoed** ABSTRACT: An algebraic polynomial with dependent random coefficients is considered. The difference between the sample roots of random algebraic equation and the roots of ... -
Estimating Absolute Transcript Concentration For Microarrays Using Langmuir Adsorption Theory
(Mathematics, 2008-08-08)This paper estimates the Langmuir parameters for probe on microarray then improves estimation of absolute transcript concentration using Langmuir adsorption model. We use the spike-in probes found on commercial microarrays, ... -
Estimating Change Over Time From Aggregate Samples Plus Partial Transition Data
(University of Texas at ArlingtonDepartment of Mathematics, 2000-05)**Please note that the full text is embargoed** ABSTRACT: As such, the paper has two basic thrusts. The first is that to obtain efficient estimates of change measures (e.g. of transition probabilities) based on aggregate ... -
Estimating contact process saturation in sylvatic transmission of Trypanosoma cruzi in the United States
(Public Library of ScienceMathematics Department, University of Texas at Arlington, 2010-04)Although it has been known for nearly a century that strains of Trypanosoma cruzi, the etiological agent for Chagas' disease, are enzootic in the southern U.S., much remains unknown about the dynamics of its transmission ...