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Articles 4831 - 4860 of 5231
Full-Text Articles in Entire DC Network
Utpa Institutional Fact Book 1999, University Of Texas-Pan American
Utpa Institutional Fact Book 1999, University Of Texas-Pan American
UTPA Archives - Stats At A Glance
No abstract provided.
Utb/Tsc Commencement – Winter 1999, University Of Texas At Brownsville, Texas Southmost College
Utb/Tsc Commencement – Winter 1999, University Of Texas At Brownsville, Texas Southmost College
Brownsville Archives - Legacy Commencement Programs
No abstract provided.
Utb/Tsc This Week 1999-01, University Of Texas At Brownsville And Texas Southmost College. Office Of News And Information
Utb/Tsc This Week 1999-01, University Of Texas At Brownsville And Texas Southmost College. Office Of News And Information
UTB/TSC Archives - This Week Newsletter
No abstract provided.
Utb/Tsc Graduate Catalog 1999-2001, University Of Texas At Brownsville
Utb/Tsc Graduate Catalog 1999-2001, University Of Texas At Brownsville
UTB/TSC Archives - Course Catalogs
No abstract provided.
Rapid Single- And Multiple-Scattering Exafs Debye-Waller Factor Calculations On Active Sites Of Metalloproteins, Nicholas Dimakis, M-Ali Al-Akhras, Grant Bunker
Rapid Single- And Multiple-Scattering Exafs Debye-Waller Factor Calculations On Active Sites Of Metalloproteins, Nicholas Dimakis, M-Ali Al-Akhras, Grant Bunker
Physics & Astronomy Faculty Publications
This paper describes recent results using our approach to calculating self-consistently single (SS) and multiple-scattering (MS) Debye- Waller factors (DWF) on active sites of metalloproteins. The calculation of MS DWF, together with the Feff7 program allows us to simulate ab-initio EXAFS spectra for a given temperature systems with no adjustable parameters. In our latest report (Dimakis N., and Bunker G., 1998) we calculate, using density functional and semiempirical approaches, the SS and MS DWF for small molecules and compared them to Raman, infrared and EXAFS spectra. In this report calculation of DWFs is done for tetrahedral Zn imidazole, a complex …
Polymer Depletion Effects Near Mesoscopic Particles, Andreas Hanke, E. Eisenriegler, S. Dietrich
Polymer Depletion Effects Near Mesoscopic Particles, Andreas Hanke, E. Eisenriegler, S. Dietrich
Physics & Astronomy Faculty Publications
The behavior of mesoscopic particles dissolved in a dilute solution of long, flexible, and nonadsorbing polymer chains is studied by field-theoretic methods. For spherical and cylindrical particles the solvation free energy for immersing a single particle in the solution is calculated explicitly. Important features are qualitatively different for self-avoiding polymer chains as compared with ideal chains. The results corroborate the validity of the Helfrich-type curvature expansion for general particle shapes and allow for quantitative experimental tests. For the effective interactions between a small sphere and a wall, between a thin rod and a wall, and between two small spheres, quantitative …
Observational Limit On Gravitational Waves From Binary Neutron Stars In The Galaxy, B. Allen, J. K. Blackburn, J. D. Creighton, Teviet Creighton
Observational Limit On Gravitational Waves From Binary Neutron Stars In The Galaxy, B. Allen, J. K. Blackburn, J. D. Creighton, Teviet Creighton
Physics & Astronomy Faculty Publications
Using optimal matched filtering, we search 25 hours of data from the LIGO 40-m prototype laser interferometric gravitational-wave detector for gravitational-wave chirps emitted by coalescing binary systems within our Galaxy. This is the first test of this filtering technique on real interferometric data. An upper limit on the rate R of neutron star binary inspirals in our Galaxy is obtained: with 90% confidence, R<0.5h−1. Similar experiments with LIGO interferometers will provide constraints on the population of tight binary neutron star systems in the Universe.
Detecting An Association Between Gamma Ray And Gravitational Wave Bursts, Lee Samuel Finn, Soumya Mohanty, Joseph D. Romano
Detecting An Association Between Gamma Ray And Gravitational Wave Bursts, Lee Samuel Finn, Soumya Mohanty, Joseph D. Romano
Physics & Astronomy Faculty Publications
If γ-ray bursts (GRBs) are accompanied by gravitational wave bursts (GWBs) the correlated output of two gravitational wave detectors evaluated in the moments just prior to a GRB will differ from that evaluated at other times. We can test for this difference without prior knowledge of either the GWB wave form or the detector noise spectrum. With a model for the GRB source population and GWB spectrum we can put a limit on the in-band rms GWB signal amplitude. Laser-Interferometer Gravitational Wave Observatory I detector observations coincident with 1000 GRB observations could lead us to exclude with 95% confidence associated …
Critical Adsorption On Curved Objects, Andreas Hanke, S. Dietrich
Critical Adsorption On Curved Objects, Andreas Hanke, S. Dietrich
Physics & Astronomy Faculty Publications
A systematic field-theoretical description of critical adsorption on curved objects such as spherical or rodlike colloidal particles immersed in a fluid near criticality is presented. The temperature dependence of the corresponding order parameter profiles and of the excess adsorption are calculated explicitly. Critical adsorption on elongated rods is substantially more pronounced than on spherical particles. It turns out that, within the context of critical phenomena in confined geometries, critical adsorption on a microscopically thin ‘‘needle’’ represents a distinct universality class of its own. Under favorable conditions the results are relevant for the flocculation of colloidal particles.
Critical Adsorption Near Edges, Andreas Hanke, M. Krech, F. Schlesener, S. Dietrich
Critical Adsorption Near Edges, Andreas Hanke, M. Krech, F. Schlesener, S. Dietrich
Physics & Astronomy Faculty Publications
Symmetry breaking surface fields give rise to nontrivial and long-ranged order parameter profiles for critical systems such as fluids, alloys, or magnets confined to wedges. We discuss the properties of the corresponding universal scaling functions of the order parameter profile and the two-point correlation function, and determine the critical exponents η∥ and η⊥ for the so-called normal transition.
Apex: Cross-Platform Analysis Program For Exafs, Nicholas Dimakis, Grant Bunker
Apex: Cross-Platform Analysis Program For Exafs, Nicholas Dimakis, Grant Bunker
Physics & Astronomy Faculty Publications
We have developed version 1.0 of a freely available (including source code) suite of basic X-Ray Absorption Fine Structure (XAFS) data analysis programs for data reduction and single scattering analysis. This package is based on the University of Washington (UW/NRL) Fortran 77 programs that are available on the International XAFS Society (IXS) database, complemented by a graphical TCL/TK scripting language based user interface which runs virtually unchanged between platforms, using the native look and feel of the corresponding platform. The package has been tested on MacOS 8.1, Linux, IRIX, Windows95 and NT. Particular emphasis is placed on simplicity, reliability, and …
Utb-Tsc Academic Senate Minutes 1998-12-16, University Of Texas At Brownsville And Texas Southmost College. Faculty Senate.
Utb-Tsc Academic Senate Minutes 1998-12-16, University Of Texas At Brownsville And Texas Southmost College. Faculty Senate.
UTB/TSC Faculty Senate Minutes
No abstract provided.
Utb/Tsc This Week 1998-12, University Of Texas At Brownsville And Texas Southmost College. Office Of News And Information
Utb/Tsc This Week 1998-12, University Of Texas At Brownsville And Texas Southmost College. Office Of News And Information
UTB/TSC Archives - This Week Newsletter
No abstract provided.
The Pan American (1998-11-24), Javier J. Mancha
The Pan American (1998-11-24), Javier J. Mancha
UTPA Archives - The Pan American Newspaper
47th Year, No. 23
The Pan American (1998-11-12), Javier J. Mancha
The Pan American (1998-11-12), Javier J. Mancha
UTPA Archives - The Pan American Newspaper
47th Year, No. 20
Utb/Tsc This Week 1998-11, University Of Texas At Brownsville And Texas Southmost College. Office Of News And Information
Utb/Tsc This Week 1998-11, University Of Texas At Brownsville And Texas Southmost College. Office Of News And Information
UTB/TSC Archives - This Week Newsletter
No abstract provided.
Utb/Tsc This Week 1998-10, University Of Texas At Brownsville And Texas Southmost College. Office Of News And Information
Utb/Tsc This Week 1998-10, University Of Texas At Brownsville And Texas Southmost College. Office Of News And Information
UTB/TSC Archives - This Week Newsletter
No abstract provided.
Orange & White - Fall 1998, University Of Texas At Brownsville, Texas Southmost College
Orange & White - Fall 1998, University Of Texas At Brownsville, Texas Southmost College
UTB/TSC Archives - Orange & White Magazine
No abstract provided.
The Pan American (1998-09-29), Javier J. Mancha
The Pan American (1998-09-29), Javier J. Mancha
UTPA Archives - The Pan American Newspaper
47th Year, No. 8
Utb/Tsc This Week 1998-08, University Of Texas At Brownsville And Texas Southmost College. Office Of News And Information
Utb/Tsc This Week 1998-08, University Of Texas At Brownsville And Texas Southmost College. Office Of News And Information
UTB/TSC Archives - This Week Newsletter
No abstract provided.
Utb/Tsc This Week 1998-07, University Of Texas At Brownsville And Texas Southmost College. Office Of News And Information
Utb/Tsc This Week 1998-07, University Of Texas At Brownsville And Texas Southmost College. Office Of News And Information
UTB/TSC Archives - This Week Newsletter
No abstract provided.
Utb/Tsc Summer Schedule 1998, University Of Texas At Brownsville, Texas Southmost College
Utb/Tsc Summer Schedule 1998, University Of Texas At Brownsville, Texas Southmost College
UTB/TSC Archives - Course Catalogs
No abstract provided.
The Pan American (1998-06-18), Javier J. Mancha
The Pan American (1998-06-18), Javier J. Mancha
UTPA Archives - The Pan American Newspaper
46th Year, No. 53
Utb/Tsc This Week 1998-06, University Of Texas At Brownsville And Texas Southmost College. Office Of News And Information
Utb/Tsc This Week 1998-06, University Of Texas At Brownsville And Texas Southmost College. Office Of News And Information
UTB/TSC Archives - This Week Newsletter
No abstract provided.
The Pan American (1998-05-16), Mark M. Milam
The Pan American (1998-05-16), Mark M. Milam
UTPA Archives - The Pan American Newspaper
46th Year, No. 54
Utb/Tsc This Week 1998-05, University Of Texas At Brownsville And Texas Southmost College. Office Of News And Information
Utb/Tsc This Week 1998-05, University Of Texas At Brownsville And Texas Southmost College. Office Of News And Information
UTB/TSC Archives - This Week Newsletter
No abstract provided.
Radio Pulse Properties Of The Millisecond Pulsar Psr J0437-4715. I. Observations At 20 Centimeters, F. A. Jenet, S. B. Anderson, V. M. Kaspi, T. A. Prince, S. C. Unwin
Radio Pulse Properties Of The Millisecond Pulsar Psr J0437-4715. I. Observations At 20 Centimeters, F. A. Jenet, S. B. Anderson, V. M. Kaspi, T. A. Prince, S. C. Unwin
Physics & Astronomy Faculty Publications
We present a total of 48 minutes of observations of the nearby, bright millisecond pulsar PSR J0437-4715 taken at the Parkes Observatory in Australia. The data were obtained at a central radio frequency of 1380 MHz using a high-speed tape recorder that permitted coherent Nyquist sampling of 50 MHz of bandwidth in each of two polarizations. Using the high time resolution available from this voltage recording technique, we have studied a variety of single-pulse properties, many for the first time in a millisecond pulsar. We show that individual pulses are broad band, have pulse widths ranging from ∼ 10 (∼ …
On Different Integrable Systems Sharing The Same Nondynamical R-Matrix, Zhijun Qiao, Walter Strampp
On Different Integrable Systems Sharing The Same Nondynamical R-Matrix, Zhijun Qiao, Walter Strampp
School of Mathematical & Statistical Sciences Faculty Publications
In a recent paper @Zhijun Qiao and Ruguang Zhou, Phys. Lett. A 235, 35 ~1997!#, the amazing fact was reported that a discrete and a continuous integrable system share the same r-matrix with the interesting property of being nondynamical. Now, we present three further pairs of different continuous integrable systems sharing the same r-matrix again being nondynamical. The first pair is the finite-dimensional constrained system ~FDCS! of the famous AKNS hierarchy and the Dirac hierarchy; the second pair is the FDCS of the well-known geodesic flows on the ellipsoid and the Heisenberg spin chain hierarchy; and the third pair is …
The Pan American (1998-04-28), Mark M. Milam
The Pan American (1998-04-28), Mark M. Milam
UTPA Archives - The Pan American Newspaper
46th Year, No. 51
The Pan American (1998-04-23), Mark M. Milam
The Pan American (1998-04-23), Mark M. Milam
UTPA Archives - The Pan American Newspaper
46th Year, No. 50