226 - 250 of 352
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CreatorTitleDescriptionSubjectDate
226 Wu, Yong-ShiGround states and thermal states of the random field Ising modelThe random field Ising model is studied numerically at both zero and positive temperature. Ground states are mapped out in a region of random field and external field strength. Thermal states and thermodynamic properties are obtained for all temperatures using the Wang-Landau algorithm. The specific...Ground states; Thermal states2005-09
227 DeTar, CarletonHeavy-light decay constants using clover valence quarks and three flavors of dynamical improved staggered quarksStarting in 2001, the MILC Collaboration began a large scale calculation of heavy-light meson decay constants using clover valence quarks on ensembles of three flavor configurations. For the coarse configurations, with a = 0.12 fm, eight combinations of dynamical light and strange quarks have been ...Decay constants; Clover valence quarks; Staggered quarks2005-03
228 Kestle, John R. W.High incidence of tumor dissemination in myxopapillary ependymoma in pediatric patientsP Myxopapillary ependymomas (MPEs) have historically been thought to be benign tumors occurring most frequently in adults. Only 8 to 20% of these tumors occur in the first two decades of life, making this tumor a rarity in pediatric neurosurgery. Five patients with intraspinal MPEs were treated by t...2005-01
229 Snapp, BrianHighchairChairs -- Art2005; 2006
230 Breznay, Ann Marie; Haas, Leslie M.If you build it will they come? Services will make the difference in a portalAbstract: Identifying and adding services to a library portal will add to its long term success in a market that pits libraries against commercial vendors like Google and Amazon.com. The current focus on portals has been on selecting collections and developing the basic functionality of the websi...Web design; Functionality; Customization2005-10
231 Furse, Cynthia M.Impedance of a short dipole antenna in a magnetized plasma via a finite difference time domain modelThe traditional analytical analysis of plasma probes requires the use of quasi-static approximations, while numerical methods require the use of an equivalent dispersive media, both producing a nontrivial analysis of the plasma environment. On the other hand, a few techniques that combine the plasm...Antenna theory; finite-difference time-domain; FDTD; Plasma covered antennas; Plasma measurements2005-08
232 Rogachev, AndreyInfluence of high magnetic fields on the superconducting transition of one-dimensional Nb and MoGe nanowiresThe effects of a strong magnetic field on superconducting Nb and MoGe nanowires with diameter ~10 nm have been studied. We have found that the Langer-Ambegaokar-McCumber-Halperin (LAMH) theory of thermally activated phase slips is applicable in a wide range of magnetic fields and describes well the ...Nb; MoGe; Superconducting transition; Langer-Ambegaokar-McCumber-Halperin; LAMH; Phase slips2005-01
233 Furse, Cynthia M.; Farhang, BehrouzIntegration of signals/systems and electromagnetics courses through the design of a communication system for a cardiac pacemakerAs students go through a traditional ECE program, they learn a great deal about individual components and tools: transistors, op amps, diodes, resistors, transmission lines, and Fourier transforms. In a traditional lab they build and test these individual units. But when the lab is done, whether or...Biomedical communication; Electrical engineering education2005-04
234 Furse, Cynthia M.; Farhang, BehrouzIntegration of signals/systems and electromagnetics courses through the design of a communication system for a cardiac pacemakerAs students go through a traditional ECE program, they lean a great deal about individual components and tools: transistors, op amps, diodes, resistors, transmission lines, and Fourier transforms. In a traditional lab they build and test these individual units. But when the lab is done, whether or n...2005-04
235 Peay, Wayne J.; Rockoff, Maxine L.Introduction to the JMLA supplement: the NLM 2004 symposium on community-based health information outreachThis paper introduces the Special Supplement to the Journal of the Medical Library Association that documents the proceedings of the Symposium on Community-Based Health Information Outreach held on December 2 and 3, 2004, at the National Library of Medicine (NLM). The goal of the Symposium was to ex...National Library of Medicine (U.S.); NN/LM; RML; National Network of Libraries of Medicine; Regional Medical Libraries; Consumer Health Information; Outreach; Community-based Organziations2005-04
236 Francis, LeslieJustice through trust: disability and the Outlier problem in Social Contract TheoryThe article focuses on the flaws of the social contract theory. It explores how hostile the social contract as a bargaining process has been thought to distance disabled people from contract-based justice. It analyzes the argument that the history of social contract theory exclude the people with di...Consensus, social sciences; Discrimination; Social contract; Social ethics; Sociology of disability2005-10
237 DeTar, CarletonLeptonic decay constants fDs and fD in three flavor lattice QCDWe determine the leptonic decay constants fDs and fD in three flavor unquenched lattice QCD. We use O(a2)-improved staggered light quarks and O(a)-improved charm quarks in the Fermilab heavy quark formalism. Our preliminary results, based upon an analysis at a single lattice spacing, are fDs = 263+5...Decay constants2005-03
238 Couldwell, William T.Long-term neurological, visual, and endocrine outcomes following transnasal resection of craniopharyngiomaObject. The authors report on a cohort of patients with craniopharyngioma treated principally through transnasal (TN) resection and followed up for a minimum of 5 years. More specifically, they evaluate the role of the TN approach in the management of craniopharyngioma. Methods. Between 1984 and 19...2005-04
239 Vardeny, Zeev ValentineMagnetic-field-dependent carrier injection at La2/3Sr1/3MnO3/ and organic semiconductors interfacesWe have fabricated organic diodes utilizing several ∏-conjugated organic semiconductors (OSEC) as spacer layers between La2=3Sr1=3MnO3 (LSMO) and various metallic electrodes, and measured their magnetoresistance (MR) and magnetoelectroluminescence (MEL) responses. The devices exhibit large negat...Organic diodes; pi-conjugated organic semicondutors; OSEC; LSMO; MR; Magnetoelectroluminescence; MEL2005-07
240 Parker, Steven G.Memory sharing for interactive ray tracing on clustersWe present recent results in the application of distributed shared memory to image parallel ray tracing on clusters. Image parallel rendering is traditionally limited to scenes that are small enough to be replicated in the memory of each node, because any processor may require access to any piece o...Ray tracing; Out-of-core rendering; Distributed shared memory; Cache miss reduction; Parallel rendering2005-02
241 Furse, Cynthia M.Miniaturized biocompatible microstrip antenna using genetic algorithmBiocompatible antennas are an area of recent research that can facilitate remote communication with medical implants. This paper shows several possible designs of a "waffle-type" antenna created using genetic algorithms (GAs) that are of a size potentially suitable for cardiac pacemakers in the 40...Biocompatible antennas; Pacemaker antenna; Medical telemetry devices2005-06
242 Furse, Cynthia M.Mixed-signal reflectometer for location of faults on aging wiringLocation of faults on aging cables is of great interest to maintainers of aircraft, cars, power distribution systems, communication systems, etc. One class of methods for locating faults is frequency domain reflectometry (FDR), using sine waves as the forcing function. A new frequency domain method...Mixed signal reflectometer; Fault location; Aging wiring; Nondestructive evaluation; Reflectometry2005-12
243 Lupton, John MarkMonitoring surface charge migration in the spectral dynamics of single CdSe∕CdS nanodot/nanorod heterostructuresSpherical CdSe nanocrystals capped by a CdS rod-like shell exhibit interesting spectral dynamics on the single particle level. Spectral boxcar averaging reveals a high degree of correlation between the emission energy, spectral linewidth, phonon coupling strength, and emission intensity of the singl...Surface charge migration; Spectral dynamics; CdSe; CdS; Nanodot; Nanorod2005-11
244 Seipp, Michael; Williams, Jamie; Meadows, Cindy; Wittwer, Carl T.Multiplex solution genotyping without probes of the factor V Leiden (G1691A), Prothrombin (G20210A), and MTHFR (C677T and A1298C) mutations in one tube by single color high-resolution melting analysisThis poster describes a study which concludes that genotyping by amplicon melting is a rapid, closed-tube method for genotyping without probes that can be multiplexed. The method was successfully applied to the four most common clotting factor mutations in a single tube. The simplicity of the method...Genotyping; Amplicon Melting2005-06
245 Fife, Paul C.; McMurtry, PatrickMultiscale analysis of heat transfer in fully developed turbulent channel flowAn analysis is given for fully developed thermal transport through a wall-bounded turbulent fluid with constant heat flux supplied at the boundary. The analysis proceeds from the aver-aged heat equation and utilizes, as principal tools, various scaling considerations. The paper first provides an acc...Turbulant flow; Channel flow; Heat transfer; Multiscale analysis2005-12
246 Peay, Wayne J.National network of libraries of medicine RFP, region 4, technical proposalThe mission of the Region 4 RML is quite simply to realize the promise of the NN/LM. The model that is being proposed for Region 4 reflects the power of the distributed, networked computing environment where the power of the technology resides in the hands of the end-user. The resources and services...RFP; NN/LM; RML; National Network of Libraries of Medicine; Regional Medical Libraries2005-07
247 Couldwell, William T.Neurosurgical workforce trends in the United StatesObject. The purpose of this study was to evaluate the US neurosurgery workforce by reviewing journal recruitment advertisements published during the past 10 years. Methods. The number of available academic and private neurosurgical staff positions was determined based on recruitment advertisements ...2005-02
248 Vardeny, Zeev ValentineOptical and transport studies of single molecule tunnel junctions based on self-assembled monolayersWe have fabricated a variety of novel molecular tunnel junctions based on self-assembled-monolayers (SAM) of two-component solid-state mixtures of molecular wires (1,4 methane benzene-dithiol; Me-BDT with two thiol anchoring groups), and molecular insulator spacers (1-pentanethiol; PT with one thio...2005-09
249 Vardeny, Zeev ValentineOrganic random lasers in the weak-scattering regimeWe used the ensemble-averaged power Fourier transform (PFT) of random laser emission spectra over the illuminated area to study random lasers with coherent feedback in four different disordered organic gain media in the weak scattering regime, where the light mean free path, ℓ* is much larger tha...Organic random lasers; Gain media; pi-conjugated polymers; Opal photonic crystal; RG6; Optical gain; Chicken breast2005-01
250 Wu, Yong-ShiOvercoming the slowing down of flat-histogram Monte Carlo simulations: cluster updates and optimized broad-histogram ensemblesWe study the performance of Monte Carlo simulations that sample a broad histogram in energy by determining the mean first-passage time to span the entire energy space of d-dimensional ferromagnetic Ising/Potts models. We first show that flat-histogram Monte Carlo methods with single-spin flip upda...Energy space; Spin dynamics; Density of states; Cluster dynamics2005-10
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