TO
Filters: Collection: "ir_uspace"
| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
| 201 |
 | Wu, Yong-Shi | Quiver mechanics for deconstructed matrix string | In this paper we propose a quiver model of matrix quantum mechanics with 8 supercharges which, on a Higgs branch, deconstructs the worldsheet of Matrix String Theory. This discrete model evades the fermion doubling problem and, in the continuum limit, enhances the number of supersymmetries to sixte... | 2003-12 | |
| 202 |
 | Mallat, Chibli | Renforcer la Société Civile contre l'Etat: Horizons du travail international au Proche et Moyen Orient | Voici donc la conclusion extrêmement critique qui semble s'imposer sur la recherche d'une meilleure gouvernance dans une perspective SC. Il faut passer au-dessus de l'Etat pour renforcer la SC, et si nécessaire, la renforcer contre l'Etat. Vaste programme, qui commence par un apprentissage dém... | 2003-11 | |
| 203 |
 | Research in brief: Summer 2003 | Summaries of Selected Research Projects at the University of Utah Health Sciences Center | Research: School of Medicine, College of Pharmacy;, College of Nursing, College of Health | 2003-06 | |
| 204 |
 | Research in brief: Winter 2003-2004 | Summaries of Selected Research Projects at the University of Utah Health Sciences Center | Research: School of Medicine, College of Pharmacy;, College of Nursing, College of Health | 2003-12 | |
| 205 |
 | Varner, Michael W.; Clark, Edward B.; Fernando, Kumari L.; Mathews, V. John | Robust estimation of fetal heart rate variability using Doppler ultrasound. | This paper presents a new measure of heart rate variability (HRV) that can be estimated using Doppler ultrasound techniques and is robust to variations in the angle of incidence of the ultrasound beam and the measurement noise. This measure employs the multiple signal characterization (MUSIC) algori... | Prenatal Ultrasonography; Fetal Heart Rate; Blood Flow Velocity; Algorithms | 2003-08 |
| 206 |
 | Liu, Feng | Seeing the atomic orbital: first-principles study of the effect of tip termination on atomic force microscopy | We perform extensive first-principles calculations to simulate the topographical atomic-force-microscope image of an adatom on the Si(111)-(7 X 7) surface, demonstrating the feasibility of imaging not only the atoms but also the atomic orbitals. Our comparative study of tip terminations shows that ... | First-principles; Tip termination; Adatoms | 2003-06 |
| 207 |
 | McElreath, Richard | Shared norms and the evolution of ethnic markers | Unlike other primates, human populations are often divided into ethnic groups that have self-ascribed membership and are marked by seemingly arbitrary traits such as distinctive styles of dress or speech (Barth 1969, 1981). The modern understanding that ethnic identities are flexible and ethnic bou... | Ethnic groups; Ethnic identity; Migration; Markers | 2003-02 |
| 208 |
 | Mishchenko, Eugene | Shot noise in a diffusive ferromagnetic-paramagnetic-ferromagnetic spin valve | Fluctuations of electric current in a spin valve consisting of a diffusive conductor connected to ferromagnetic leads and operated in the giant magnetoresistance regime are studied. It is shown that fluctuations due to spin-flip scattering enhance strongly shot noise up to a point where the Fano fac... | Fano factor; Shot noise | 2003-09 |
| 209 |
 | DeTar, Carleton | Static hybrid quarkonium potential with improved staggered quarks | We are studying the effects of light dynamical quarks on the excitation energies of a flux tube between a static quark and antiquark. We report preliminary results of an analysis of the ground state potential and the ∑g′+ and Πu potentials. We have measured these potentials on closely matched... | Quarkonium; Staggered quarks; Flux tube | 2003-05 |
| 210 |
 | Smith, Grant D.; Bedrov, Dmitro; Borodin, Oleg | Structural relaxation and dynamic hetrogeneity in a polymer melt at attractive surfaces | Molecular dynamics simulations of polymer melts at flat and structured surfaces reveal that, for the former, slow dynamics and increased dynamic heterogeneity for an adsorbed polymer is due to densification of the polymer in a surface layer, while, for the latter, the energy topography of the sur... | Polymer melts; Structural relaxation; Dynamic heterogeneity; Attractive surfaces; Surface energy topography; Polymer densification | 2003-06 |
| 211 |
 | Boehme, Christoph | Theory of the time-domain measurement of spin-dependent recombination with pulsed electrically detected magnetic resonance | The theoretical foundations of the time domain measurement of spin-dependent charge carrier recombination by means of pulsed electrically detected magnetic resonance (EDMR) are outlined. Pulsed EDMR is based on the transient measurement of electrical currents in semiconductors after a coherent manip... | Spin-dependent recombination | 2003-12 |
| 212 |
 | Mishchenko, Eugene | Thermal conductivity of a two-dimensional electron gas with Coulomb interaction | We demonstrate that forward electron-electron scattering due to Coulomb interaction in a two-dimensional ballistic electron-gas leads to the (T ln T)21 temperature dependence of the thermal conductivity, which is logarithmically suppressed compared to the usual Fermi-liquid behavior. | Coulomb drag; Coulomb interaction | 2003-01 |
| 213 |
 | DeTar, Carleton | Topological susceptibility with the improved Asqtad action | Chiral perturbation theory predicts that in quantum chromodynamics light dynamical quarks suppress the topological (instanton) susceptibility.We investigate this suppression through direct numerical simulation using the Asqtad improved lattice fermion action. This action holds promise for carrying... | Chiral perturbation; Staggered fermions | 2003-12 |
| 214 |
 | DeTar, Carleton | Topological susceptibility with the improved Asqtad action | As a test of the chiral properties of the improved Asqtad (staggered fermion) action, we have been measuring the topological susceptibility as a function of quark masses for 2 + 1 dynamical flavors. We report preliminary results, which show reasonable agreement with leading order chiral perturbatio... | Topological cbarge; Staggered fermions | 2003-05 |
| 215 |
 | Mishchenko, Eugene | Transport equations for a two-dimensional electron gas with spin-orbit interaction | The transport equations for a two-dimensional electron gas with spin-orbit interaction are presented. The distribution function is a 232-matrix in the spin space. Particle and energy conservation laws determine the expressions for the electric current and the energy flow. The derived transport equ... | Spin-orbit coupling | 2003-07 |
| 216 |
 | Vardeny, Zeev Valentine | Ultrafast dynamics of excitons and solitons in disubstituted polyacetylene | We studied the ultrafast photoexcitation dynamics in disubstituted polyacetylene (DPA). We found two distinctively different relaxation channels for the photogenerated excitons; ionic and covalent pathways. In DPA films the photogenerated odd-parity (Bu) excitons that are responsible for the high ... | Ultrafast dynamics; Photoexcitation; Excitons; Disubstituted polyacetylene; Excitons; DPA; Relaxation channels | 2003-01 |
| 217 |
 | Vardeny, Zeev Valentine; Raikh, Mikhail E. | Universal properties of random lasers | The design and fabrication of laser resonators is often difficult. However, random lasers occur in gain media with numerous scatterers and produce coherent laser emission without any predesigned cavity. The generation of coherent emission from multiple scattering is quite general and its basic prin... | Random lasers; Laser resonators; pi-conjugated polymers; Rhodamine-TiO2 suspensions; Random media; Random lasing | 2003-01 |
| 218 |
 | Arlitsch, Kenning | Utah digital newspapers project | The J. Willard Marriott Library at the University of Utah has digitized 30,000 pages from three weekly Utah newspapers from the period of 1889 - 1922 and made the collections freely available on the Internet. This article describes a new method for digitizing historic newspapers, developed in a part... | Digital libraries; Newspaper and periodical libraries; Newspapers in microform; Newspapers | 2003-03 |
| 219 |
 | Mathew, Binu K.; Davis, Al | A characterization of visual feature recognition | Natural human interfaces are a key to realizing the dream of ubiquitous computing. This implies that embedded systems must be capable of sophisticated perception tasks. This paper analyzes the nature of a visual feature recognition workload. Visual feature recognition is a key component of a numb... | Visual feature recognition; Human interfaces | 2003-09-03 |
| 220 |
 | Mathew, Binu K.; Davis, Al; Fang, Zhen | A Gaussian probability accelerator for SPHINX 3 | Accurate real-time speech recognition is not currently possible in the mobile embedded space where the need for natural voice interfaces is clearly important. The continuous nature of speech recognition coupled with an inherently large working set creates significant cache interference with other... | Speech recognition; SPHINX 3; Speech recognizers | 2003-07-22 |
| 221 |
 | McDirmid, Sean; Hsieh, Wilson C. | A path-precise analysis for property synthesis | Recent systems such as SLAM, Metal, and ESP help programmers by automating reasoning about the correctness of temporal program properties. This paper presents a technique called property synthesis, which can be viewed as the inverse of property checking. We show that the code for some program pro... | Property synthesis; Property codes | 2003-12-01 |
| 222 |
 | Gopalakrishnan, Ganesh | A symbolic partial order reduction algorithm for rule based transition systems | Partial order reductions are a class of methods that attempt to reduce the state space that must be explored to verify systems by explicit state enumeration. Partial order reduction algorithms have been successfully incorporated into tools such as Spin and VFSM-valid. However, current partial ord... | Partial order reductions; Partial order reduction algorithms; SAT solver; Rule based transition systems | 2003-12-01 |
| 223 |
 | Capecchi, Mario R. | Absence of radius and ulna in mice lacking hoxa-11 and hoxd-11. | Mice with targeted disruptions in Hox genes have been generated to evaluate the role of the Hox complex in determining the mammalian body plan. This complex of 38 genes encodes transcription factors that specify regional information along the embryonic axes. Early in vertebrate evolution an ancestra... | Alleles; Animals; Bone and Bones; Carpal Bones | 2003-09-02 |
| 224 |
 | Tasdizen, Tolga; Whitaker, Ross T. | Anisotropic diffusion of surface normals for feature preserving surface reconstruction | For 3D surface reconstruction problems with noisy and incomplete range data measured from complex scenes with arbitrary topologies, a low-level representation, such as level set surfaces, is used. Such surface reconstruction is typically accomplished by minimizing a weighted sum of data-model dis... | Anisotropic diffusion; Surface reconstruction | 2003-04-18 |
| 225 |
 | Gerton, Jordan | Apertureless near-field fluorescence microscope for biological imaging | We measured the optical response of fluorescent beads to sharp metallic and semiconducting probes, revealing several underlying near-field interactions. Our results suggest that -10 nanometer optical resolution with spectroscopic chemical sensitivity is possible, and bear strongly on molecular-scal... | 2003-01-01 |