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Arkeology, 2006 Fall/Winter
(University of Missouri--Columbia. College of Veterinary Medicine, 2006)
Nonadiabatic electron dynamics in time-dependent density-functional theory
(American Physical Society, 2006)
Time-dependent density-functional theory (TDDFT) treats dynamical exchange and correlation (xc) via a single-particle potential, Vxc(r,t), defined as a nonlocal functional of the density n(r′,t′). The popular adiabatic ...
Relaxation in Time-Dependent Current-Density-Functional Theory
(American Physical Society, 2006)
We apply the time-dependent current-density-functional theory to the study of the relaxation of a closed many-electron system evolving from a nonequilibrium initial state. We show that the self-consistent unitary time ...
Relativistic Reference Frames for Astrometry and Navigation in the Solar System
(arXiv, 2006)
Astrophysical space missions deliver invaluable information about our universe, stellar dynamics of our galaxy, and motion of celestial bodies in the solar system. Astrometric space missions SIMand Gaia will determine ...
Dynamics of extended spinning masses in a gravitational field
(American Physical Society, 2006)
We develop a first-order approximation method for the influence of spin on the motion of extended spinning test masses in a gravitational field. This approach is illustrated for approximately circular equatorial motion in ...
Explicit Fermi coordinates and tidal dynamics in de Sitter and Gödel spacetimes
(American Physical Society, 2006)
Fermi coordinates are directly constructed in de Sitter and Gödel spacetimes and the corresponding exact coordinate transformations are given explicitly. The quasi-inertial Fermi coordinates are then employed to discuss ...
Helicity-rotation-gravity coupling for gravitational waves
(American Physical Society, 2006)
The consequences of spin-rotation-gravity coupling are worked out for linear gravitational waves. The coupling of helicity of the wave with the rotation of a gravitational-wave antenna is investigated and the resulting ...
Does the World Need U.S. Farmers Even if Americans Don't?
(2006-09)
We consider the implications of trends in the number of U.S. farmers and food imports on the question of what role U.S. farmers have in an increasingly global agrifood system. Our discussion stems from the argument some ...
K-12 Public School Finance in Missouri: An Overview
(Federal Reserve Bank of St. Louis, 2006)
The level and distribution of spending for public K-12 education remains a contentious matter of policy in many states because of increasing expectations for school performance and widespread school finance litigation. In ...
Influence of Gold Nanoparticles on Collagen Fibril Morphology Quantified Using Transmission Electron Microscopy and Image Analysis
(BMC Medical Imaging, 2006)
Development of implantable biosensors for disease detection is challenging because of poor biocompatibility of synthetic materials. A possible solution involves engineering interface materials that promote selfassembly and ...
Technology for Successful Aging
(IEEE, 2006-08)
With our partners at the University of Virginia we are developing a system of sensors, to monitor the activity of seniors in their residences. We measure motion, footfalls, sleep and restlessness, we have stove sensors and ...
Adaptive Silhouette Extraction In Dynamic Environments Using Fuzzy Logic
(IEEE, 2006-07)
Extracting a human silhouette from an image is the enabling step for many high-level vision processing tasks, such as human tracking and activity analysis. In a
previous paper, we addressed some of the challenges in ...
Recognizing Falls from Silhouettes
(IEEE, 2006-08)
A major problem among the elderly involves
falling. The recognition of falls from video first requires the segmentation of the individual from the background. To ensure privacy, segmentation should result in a silhouette ...
Detection of a Far-Infrared Bow-Shock Nebula Around R Hya: the First MIRIAD Results
(American Astronomical Society, 2006)
We present the first results of the MIRIAD (MIPS InfraRed Imaging of AGB Dust shells) project using the Spitzer Space Telescope. The primary aim of the project is to probe the material distribution in the extended
circumstellar ...
Collective Entrepreneurship: An Emerging Phenomenon in Producer-Owned Organizations
(Southern Agricultural Economics Association, 2006-08)
This paper introduces and defines the concept of collective entrepreneurship. A review of the defensive single-level rent-seeking objective of traditional agricultural cooperatives is introduced followed by an analysis of ...
Theoretical prediction of spectral and optical properties of bacteriochlorophylls in thermally disordered LH2 antenna complexes
(American Institute of Physics, 2006)
A general approach for calculating spectral and optical properties of pigment-protein complexes of known atomic structure is presented. The method, that combines molecular dynamics simulations, quantum chemistry calculations, ...
Analysis of USDA Mandatory Hog Price Data
(2006-05)
The USDA Mandatory Price Reporting System Price Data Reports started in 2001 as part of the Livestock Reporting Act of 1999. Each weekday USDA releases three reports on negotiated hog prices which are named after their ...
Calculating potentials of mean force and diffusion coefficients from nonequilibrium processes without Jarzynski's equality
(American Institute of Physics, 2006)
In general, the direct application of the Jarzynski equality (JE) to reconstruct potentials of mean force (PMFs) from a small number of nonequilibrium unidirectional steered molecular-dynamics (SMD) paths is hindered by ...
Will I Teach Evolution? A Multiple Case Study of Prospective Biology Teachers
(2006-04)
The purpose of this multiple case study was to examine the impact of a biology-focused science
methods course on prospective teachers' preparedness to teach evolution and to explore factors that influence their intentions ...
U.S. Pork Imports and Exports
(2006-05)
The changes in U.S. pork trade in the past 20 years are quite impressive. U.S. pork exports have grown from 86 million pounds carcass weight equivalent in 1986 to 2.66 billion pounds in 2005. This paper discusses the changes ...