Browsing College of Science (COS) by Title
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1/N expansion for the degenerate Anderson model in the mixedvalence regime
(American Physical Society, 198307)The 1N expansion method for the degenerate Anderson model is formulated. N is the degeneracy factor of one of the felectron configurations. Various groundstate properties are calculated. Excellent agreement with the ... 
14year program monitoring the flux densities of 33 radio sources at low frequencies
(IOP PUBLISHING LTD, 199901)We present the results of a lowfrequency flux density monitoring program of 33 extragalactic radio sources. The light curves at 318 and 430 MHz over a 14 yr period are presented. The measurements were made with the NAIC ... 
200506 Annual Report Department of Biological Sciences
(Department of Biological Sciences, 2006) 
200607 Annual Report Department of Biological Sciences
(Department of Biological Sciences, 2007) 
200708 Annual Report Department of Biological Sciences
(Department of Biological Sciences, 2008) 
200809 Annual Report Department of Biological Sciences
(Department of Biological Sciences, 20090819) 
200910 Annual Report Department of Biological Sciences
(Department of Biological Sciences, 20100811) 
(2S,4R)4Fluoropyrrolidinium2 carboxylate
(International Union of Crystallography, 20120718)The crystal structure of the title compound, C5H8FNO2, at 100 K, displays intermolecular NHO hydrogen bonding between the ammonium and carboxylate groups as a result of its zwitterionic nature in the solid state. The ... 
a 10 kpc scale seyfert galaxy outflow: hst/cos observations of iras f224565125
(IOP Publishing Ltd., 201206)We present analysis of the UV spectrum of the lowz AGN IRAS F224565125 obtained with the Cosmic Origins Spectrograph on board the Hubble Space Telescope. The spectrum reveals six main kinematic components, spanning a ... 
A behavioral perspective on the biophysics of the lightdependent magnetic compass: a link between directional and spatial perception?
(Company of Biologists Ltd., 201010)In terrestrial organisms, sensitivity to the Earth's magnetic field is mediated by at least two different magnetoreception mechanisms, one involving biogenic ferromagnetic crystals (magnetite/maghemite) and the second ... 
A comparison of viscoelastic stress wakes for twodimensional and threedimensional Newtonian drop deformations in a viscoelastic matrix under shear
(American Institute of Physics, 200907)A recent experimental study of a Newtonian drop suspended in a viscoelastic matrix undergoing simple shear displays a transient overshoot in drop deformation which is qualitatively similar to twodimensional (2D) numerical ... 
A computational study of nucleosomal DNA flexibility
(CELL PRESS, 200612)Molecular dynamics simulations of the nucleosome core particle and its isolated DNA free in solution are reported. The simulations are based on the implicit solvent methodology and provide insights into the nature of ... 
A discretevelocity, stationary Wigner equation
(AIP Publishing, 200011)This paper is concerned with the onedimensional stationary linear Wigner equation, a kinetic formulation of quantum mechanics. Specifically, we analyze the wellposedness of the boundary value problem on a slab of the ... 
A Dual PET/MR Imaging Nanoprobe: 124I Labeled Gd3N@C80
(MDPI, 20120510)The current report describes the development of a dual modality tomographic agent for both positron emission tomography and magnetic resonance imaging (PET/MRI). The dualmodality agent in this study was based on a 124I ... 
A finite element splitting extrapolation for second order hyperbolic equations
(Siam Publications, 2009)Splitting extrapolation is an efficient technique for solving large scale scientific and engineering problems in parallel. This article discusses a finite element splitting extrapolation for second order hyperbolic equations ... 
A general convergence analysis of some Newtontype methods for nonlinear inverse problems
(Siam Publications, 2011)We consider the methods x(n+1)(delta)  x(n)(delta)  g(alpha n) (F'(x(n)(delta))* F'(x(n)(delta)))F'(x(n)(delta))*(F(x(n)(delta))  y(delta)) for solving nonlinear illposed inverse problems F(x) = y using the only available ... 
A highfield adiabatic fast passage ultracold neutron spin flipper for the UCNA experiment
(AIP Publishing, 201207)The UCNA collaboration is making a precision measurement of the beta asymmetry (A) in free neutron decay using polarized ultracold neutrons (UCN). A critical component of this experiment is an adiabatic fast passage neutron ... 
A hybrid collocation method for volterra integral equations with weakly singular kernels
(Siam Publications, 2003)The commonly used graded piecewise polynomial collocation method for weakly singular Volterra integral equations may cause serious roundoff error problems due to its use of extremely nonuniform partitions and the sensitivity ... 
A lowfrequency radio array for space
(EDP SCIENCES, 198804)At the lowest radio frequencies (<30 MHz), the Earth's ionosphere transmits poorly or not at all. This relatively unexplored region of the electromagnetic spectrum is thus an area where high resolution, high sensitivity ... 
A Model to Predict the Impact of Specification Changes on ChlorideInduced Corrosion Service Life of Virginia Bridge Decks
(Virginia Center for Transportation Innovation and Research, 200210), FHWA/VTRC 03CR4A model to determine the time to first repair and subsequent rehabilitation of concrete bridge decks exposed to chloride deicer salts that recognizes and incorporates the statistical nature of factors affecting the corrosion ...