Physical Sciences and Mathematics Commons^™

Degeneracy In Density Functional Theory: Topology In The V And N Spaces, Carsten A. Ullrich, W. Kohn

Physics Faculty Research & Creative Works

The problem of v-representability had cast a shadow of uncertainty over density functional theory (DFT). Building on CCR, the topology of the v(r)-n(r) mapping is clarified. The Be series and a lattice model are used for rl, to a continuous variable, r, does not appear to offer difficulties.

Little Venice Water Quality Monitoring Quarterly Report #6, Ronald Jones

SERC Research Reports

No abstract provided.

Early Deglaciation In The Tropical Andes, G. O. Seltzer, D. T. Rodbell, P. A. Baker, Sherilyn C. Fritz, P. M. Tapia, H. D. Rowe, R. B. Dunbar, Peter U. Clark

Department of Earth and Atmospheric Sciences: Faculty Publications

Analysis of sediment records from lakes located beyond the glacial limit in the Andes has provided, for the first time, an independent assessment of effective moisture ( precipitation minus evaporation) and the timing of the last glaciation (1). Conditions were wet at the LGM and remained so until approximately 15,000 cal yr B.P. (2). However, deglaciation was under way from the LGM between 22,000 and 19,500 cal yr B.P., which reinforces the observation that deglaciation in the tropical Andes was primarily forced by an increase in mean annual temperature during a wet postglacial interval (3, 4).

Kinetic And Structural Characterization Of Manganese(Ii)-Loaded Methionyl Aminopeptidases, Ventris M. D'Souza, Sabina I. Swierczek, Nathaniel J. Cosper, Lu Meng, Shane Ruebush, Alicja J. Copik, Robert A. Scott, Richard C. Holz

Chemistry Faculty Research and Publications

Manganese(II) activation of the methionyl aminopeptidases from Escherichia coli (EcMetAP-I) and the hyperthermophilic archaeon Pyrococcus furiosus (PfMetAP-II) was investigated. Maximum catalytic activity for both enzymes was obtained with 1 equiv of Mn(II), and the dissociation constants (K_d) for the first metal binding site were found to be 6 ± 0.5 and 1 ± 0.5 μM for EcMetAP-I and PfMetAP-II, respectively. These K_d values were verified by isothermal titration calorimetry (ITC) and found to be 3.0 ± 0.2 and 1.4 ± 0.2 μM for EcMetAP-I and PfMetAP-II, respectively. The …

An Afternoon With Dr. Freeman Dyson, Freeman Dyson

IMSA Great Minds Program ®

Dyson will speak with IMSA students and faculty on a variety of topics including space, origins of the universe, and how science and technology change society. Learn how three burgeoning technologies – solar energy, genetic engineering and the Internet could narrow the gap between rich and poor in this century. Dyson’s visions for the future include forests of genetically enhanced trees oozing high-octane fuel from their roots and laser-launched earthlings colonizing the comets of the Kuiper Belt. Are his visions convincing? You can decide by joining us at IMSA’s website.

Assessment Of Cabergoline As A Reproductive Inhibitor In Coyotes (Canis Latrans), T. J. Deliberto, A. Seglund, W. Jochle, B. Kimball

United States Department of Agriculture Wildlife Services: Staff Publications

The efficacy of three oral formulations (gelatin capsule, tablet, oil base) and five dosages (50, 100, 250, 500, 1000 μg) of cabergoline to disrupt reproduction in coyotes (Canis latrans) was evaluated. The type of formulation used had no effect on plasma progesterone and prolactin concentrations or on mean litter size. No adverse side effects (for example, vomiting, anorexia, diarrhea) were observed despite the use of doses of up to 20 times the therapeutic dose used for domestic dogs and cats. All coyotes treated with 50, 100, 250 and 500 μg cabergoline whelped, but plasma progesterone concentrations in these coyotes were …

Wildlife Fertility Control, K.A. Fagerstone

United States Department of Agriculture Wildlife Services: Staff Publications

Huge flights of Canada geese turn off local park visitors with their messy, smelly "business cards." The superabundant white-tailed deer we love to watch also can do a number on your car at night and host the ticks that carry Lyme Disease. Blackbirds and gulls and coyotes and other critters bring their own problems when their numbers get out of hand.

Most such problems reach their highest profile in urban/suburban areas where traditional animal-control techniques such as hunting and trapping are frowned upon or illegal. More and more people are calling for wildlife managers to use "fertility control"–-but is that …

Spintessence! New Models For Dark Matter And Dark Energy, Latham A. Boyle, Robert R. Caldwell, Marc Kamionkowski

Dartmouth Scholarship

We investigate a class of models for dark matter and/or negative-pressure, dynamical dark energy consisting of “spintessence”, a complex scalar field φ spinning in a U(1)-symmetric potential V(φ)=V(|φ|). As the Universe expands, the field spirals slowly toward the origin. The internal angular momentum plays an important role in the cosmic evolution and fluctuation dynamics. We outline the constraints on a cosmic spintessence field, describing the properties of the potential necessary to sustain a viable dark energy model, making connections with quintessence and self-interacting and fuzzy cold dark matter. Possible implications for the …

The Virginia Wetlands Report Vol. 17, No. 3, Virginia Institute Of Marine Science

Virginia Wetlands Reports

• Red Drum, Sciaenops oscellatus. Walter I. Priest, III
• Marina Site Suitability Tool Available. Marcia Berman, Tamia Rudnicky, Kirk Havens and Thomas Barnard
• Virginia Wetlands Report Reader Survey Result. Tom Barnard
• Sphagnum Moss: Natural Properties Promote Historic Uses. Pam Mason
• Private Piers and Tidal Marsh Cumulative Impacts. Tom Barnard

Water Current, Volume 34, No. 5. October 2002

Water Current Newsletter

• Fall NSIA/NWRA Convention Focuses on “Changing Times/Changing Attitudes”

• From the Director

• Meet the Faculty

• Both Blues Fall Below State-line Minimums by Keith a Paulsen

• Reclaiming Land Across the Arid West

• Bureau of Reclamation Develops Irrigation and Flood Control Projects Across Nebraska

• The North Platte Project in Wyoming and Nebraska

• The Glendo Unit in Wyoming

• Two Area Offices Manage Nebraska and Wyoming Projects

• Irrigation and Reclamation Districts and Water Supply Companies

• Water Center, Conservation and Survey Division 2003 Calendar • Water News Briefs

• Making the Choice Between Bottle Water …

Numeric Issues In Test Software Correctness, Robert G. Hayes, Gary B. Hughes, Phillip M. Dorin, Raymond J. Toal

Statistics

Test system designers are comfortable with the concepts of precision and accuracy with regard to measurements achieved with modern instrumentation. In a well-designed test system, great care is taken to ensure accurate measurements, with rigorous attention to instrument specifications and calibration. However, measurement values are subjected to representation and manipulation as limited precision floating-point numbers by test software. This paper investigates some of the issues related to floating point representation of measurement values, as well as the consequences of algorithm selection. To illustrate, we consider the test case of standard deviation calculations as used in the testing of infrared focal …

Kinematic Path-Planning For Formations Of Mobile Robots With A Nonholonomic Constraint, Timothy D. Barfoot, Christopher M. Clark, Stephen M. Rock, Gabriele M.T. D'Eleuterio

Computer Science and Software Engineering

A method of planning paths for formations of mobile robots with nonholonomic constraints is presented. The kinematics equations presented in this paper allow a general geometrical formation of mobile robots to be maintained while the group as a whole travels an arbitrary path. It is possible to represent a formation of mobile robots by a single entity with the same type of nonholonomic constraint as the individual members. Thus, any path-planner or control method may be used with the formation as would be applied to an individual robot. Equations are developed for changing the geometrical formation and hardware results are …

Environmental Management Systems And Public Authority In Canada: Rethinking Environmental Governance, Stepan Wood

Buffalo Environmental Law Journal

No abstract provided.

Chromium Tolerant Microbial Communities From The Chesapeake Bay Watershed, Kristine L. Lowe, Ruth E. Fliflet, Tony Ly, Brenda J. Little, Joanne Jones-Meehan

Virginia Journal of Science

Chromium tolerant bacteria were enumerated from portions of the Chesapeake Bay watershed and examined for their potential to reduce Cr(VI). Water and sediment samples were collected from various locations in Baltimore Harbor and Bear Creek, as well as Sandy Point State Park in Maryland and the Anacostia River in Washington, DC. Samples were spread onto agar plates with CrO₄^2- (5 ppm) as the sole terminal electron acceptor. Plates were incubated anaerobically and colony forming units (CFU) enumerated. CFU arising on minimal-CrO₄^2- medium ranged from 10³-10⁴ mL^-1 or g^-1 and community estimates …

Student Fact Book, Fall 2002, Wright State University Lake Campus, Office Of Student Information Systems, Wright State University

Wright State University Student Fact Books

The student fact book has general demographic information on all students enrolled at Wright State University Lake Campus for Fall Quarter, 2002.

Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 19, Number 1, October 2002, College Of Engineering And Computer Science, Wright State University

BITs and PCs Newsletter

A sixteen page newsletter created by the Wright State University College of Engineering and Computer Science that addresses the current affairs of the college.

Review Of Recreational Take Of Coral In Western Australia. A Discussion Paper., Department Of Fisheries

Fisheries management papers

This discussion paper has been prepared by the Department of Fisheries (Western Australia) to address the issue of recreational collection of coral in coastal waters of Western Australia. The paper describes: • popular coral locations in WA; • management issues associated with the recreational collection of corals; • management objectives and strategies as possible options to address the issue of recreational collection of corals; and • seeks public input on the proposed management objectives and strategies.

Semantic Web Services And Processes: Semantic Composition And Quality Of Service, Jorge Cardoso, Chistoph Bussler, Amit P. Sheth, Dieter Fensel

Kno.e.sis Publications

Web Services are increasingly being adapted by Enterprises as the new approach to component-based solutions for enterprise applications. They hold potential to transform Web from a collection of information resources to a distributed computing platform. Many enterprise applications, including those supporting e-commerce take a form of processes, which need to be created from individual Web Services and other software components.

Fall 2002, Nsu Oceanographic Center

Currents

No abstract provided.

Phase Dependence Of Thomson Scattering In An Ultraintense Laser Field, Fei He, Y. Y. Lau, Donald P. Umstadter, Trevor Strickler

Donald Umstadter Publications

The Thomson scattering spectra of an electron by an ultraintense laser field are computed. It is found that the electron orbit, and therefore its nonlinear Thomson scattering spectra, depend critically on the amplitude of the ultraintense laser field and on the phase at which the electron sees the laser electric field. Contrary to some customary notions, the Thomson scattering spectra, in general, do not occur at integer multiples of the laser frequency and the maximum frequency is proportional to the first instead of the third power of the electric field strength for the case of an ultraintense laser. The implications …

The Fine Structure Of The Kasparov Groups Ii: Topologizing The Uct, Claude Schochet

Mathematics Faculty Research Publications

The Kasparov Groups KK∗(A,B) have a natural structure as pseudopolonais groups. In this paper we analyze how this topology interacts with the terms of the Universal Coefficient Theorem (UCT) and the splitting sof the UCT constructed by J. Rosenberg and the author, as well as its canonical three term decomposition which exists under bootstrap hypotheses. We show that the various topologies on [cursive]Ext^{1}_{ℤ}(K∗(A),K∗(B)) and other related groups mostly coincide. Then we focus attention on the Milnor sequence and the fine structure subgroup of KK∗(A,B). …

Stochastic 2-D Navier-Stokes Equation, J. L. Menaldi, S. S. Sritharan

Mathematics Faculty Research Publications

In this paper we prove the existence and uniqueness of strong solutions for the stochastic Navier-Stokes equation in bounded and unbounded domains. These solutions are stochastic analogs of the classical Lions-Prodi solutions to the deterministic Navier-Stokes equation. Local monotonicity of the nonlinearity is exploited to obtain the solutions in a given probability space and this signi cantly improves the earlier techniques for obtaining strong solutions, which depended on pathwise solutions to the Navier-Stokes martingale problem where the probability space is also obtained as a part of the solution.

Chemistry & Biochemistry Newsletter, Department Of Chemistry & Biochemistry, South Dakota State University

Chemistry & Biochemistry Newsletter: 2002-2015

Inside:

Page 2 Utecht Enhances Freshman Labs with New Software

Page 3 Alumni News; Foundation donors

Page 4 2002 Graduates and Awards; Chinese Seminar Results in Research Project

Page 5 Faculty and Staff News

Page 6 Antarctic Ice Holds History of Earth’s Atmosphere; Renovations of Shepard Hall Complete

Page 7 ASL Staff Records Hectic Summer; Budner Attends Greek Conference ; Carlson Awarded National Scholarship

Page 8 Recent Faculty Publications

Likwidacja Strefy Ochronnej Huty Katowice I Zakładów Koksowniczych "Przyjaźń" W Dąbrowie Górniczej, Marian Mazur, Robert Oleniacz, Marek Bogacki

Robert Oleniacz

Legislation changes in Poland concerning the protective zones (created around industrial plants particularly harmful to the environment) were presented in the paper. Conditions connected with forming, developing and partial elimination of the protective zone existing around the "Katowice" steelworks and the coke plant Przyjaźń in Dąbrowa Górnicza (Poland) since 1978 were characterized as well.

English title: Elimination of the protective zone of the Katowice steelworks and the coke plant Przyjaźń in Dąbrowa Górnicza.

Fast Fifth-Order Polynomial Transforms For Generating Univariate And Multivariate Nonnormal Distributions, Todd C. Headrick

Todd Christopher Headrick

A general procedure is derived for simulating univariate and multivariate nonnormal distributions using polynomial transformations of order five. The procedure allows for the additional control of the fifth and sixth moments. The ability to control higher moments increases the precision in the approximations of nonnormal distributions and lowers the skew and kurtosis boundary relative to the competing procedures considered. Tabled values of constants are provided for approximating various probability density functions. A numerical example is worked to demonstrate the multivariate procedure. The results of a Monte Carlo simulation are provided to demonstrate that the procedure generates specified population parameters and …

2. Toshinobu Higashimura, Otto Vogl

Otto Vogl

No abstract provided.

A Discrete Nonlinear Model With Substrate Feedback, Panos Kevrekidis, B. A. Malomed, A. R. Bishop

Panos Kevrekidis

We consider a prototypical model in which a nonlinear field (continuum or discrete) evolves on a flexible substrate which feeds back to the evolution of the main field. We identify the underlying physics and potential applications of such a model and examine its simplest one-dimensional Hamiltonian form, which turns out to be a modified Frenkel-Kontorova model coupled to an extra linear equation. We find static kink solutions and study their stability, and then examine moving kinks (the continuum limit of the model is studied too). We observe how the substrate effectively renormalizes properties of the kinks. In particular, a nontrivial …

Hierarchical Geostatistics And Multifacies Systems: Boise Hydrogeophysical Research Site, Boise, Idaho, Warren Barrash, Tom Clemo

CGISS Publications and Presentations

The geostatistical structure of a heterogeneous coarse fluvial aquifer is investigated with porosity data derived from neutron logs at a research well field (Boise Hydrogeophysical Research Site, or BHRS) that was designed, in part, to support three-dimensional geostatistical analysis of hydrologic and geophysical parameters. Recognizing that the coarse fluvial deposits include subdivisions (units between bounding surfaces), we adopt a hierarchical approach and examine the porosity geostatistics of the aquifer at three scales. At the BHRS, the saturated fluvial deposits as a whole (maximum interwell spacing ~80 m, thickness ~16–18 m) are at hierarchical level 1; five subhorizontal units within these …

Physica Junior!: The Newsletter Of Utep’S Department Of Physics, Utep Department Of Physics

The Department of Physics

Electronic newsletter for high school students interested in physics, Fall 2002.

2002 Scholars And Artists Bibliography, Michael Schwartz Library, Cleveland State University, Friends Of The Michael Schwartz Library

Scholars and Artists Bibliographies

This bibliography was created for the annual Friends of the Michael Schwartz Library Scholars and Artists Reception, recognizing scholarly and creative achievements of Cleveland State University faculty, staff and emeriti