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CreatorTitleDescriptionSubjectDate
51 Bedrov, Dmitro; Smith, Grant D.Exploration of conformational phase space in polymer melts: a comparison of parallel tempering and conventional molecular dynamics simulationsParallel tempering molecular dynamics simulations have been performed for 1,4-polybutadiene polymer melts in the 323 K-473 K temperature domain at atmospheric pressure. The parallel tempering approach provides a vast improvement in the equilibration and sampling of conformational phase space for ...Polymer melts; 1,4-polybutadiene; Conformational phase space; Parallel tempering2001
52 Miller, Joel StevenFerrimagnetic ordering of one-dimensional N,N'-dicyanoquinone diimine (DCNQI) electron transfer salts with porphyrinatomanganese(II)*The redox reaction between N,N'-dicyanoquinone diimines (DCNQIs) and porphyrinatomanganese(II) produced electron transfer salts (ETSs), [MnIIITMesP]+[DMeO-DCNQI]-. 1 (MnIIITMesP=meso-tetrakis(2,4,6- trimethylphenyl)porphyrinatomanganese(III), DMeO-DCNQI=2,5-dimethoxy-N,N'-dicyanoquinone diimine) an...Transitions; Interactions; Magnetic2001
53 Gopalakrishnan, GaneshFormal specification of the virtual component interface standard in the unified modeling languageAs part of our charge from the Virtual Sockets Interface Alliance we search for a notation in which standards documents can be precisely specified. We approach the specification for standard problem in the context of the Virtual Component Interface Standard. We propose six orthogonal axes of specifi...Unified Modeling Language2001
54 Chatterjee, Prosenjit; Gopalakrishnan, GaneshFormally specifying memory consistency models and automatically generating executable specificationsMemory ordering properties of shared memory multiprocessors are more subtle and less well understood than cache coherence. These properties tend to be processor or platform specific and are not always formally specified. It is difficult to compare even those platforms whose memory ordering propert...Computer memory; Memory consistency models; Memory ordering; Shared memory multiprocessors2001
55 Myers, Chris J.Framework of timed trace theoretic verification revisitedThis paper develops a framework to support trace theoretic verification of timed circuits and systems. A theoretical foundation for classifying timed traces as either successes or failures is developed. The concept of the semimirror is introduced to allow conformance checking thus supporting hierarc...2001
56 Gondolo, PaoloGamma-ray summary reportThis paper reviews the field of gamma-ray astronomy and describes future experiments and prospects for advances in fundamental physics and high-energy astrophysics through gamma-ray measurements. We concentrate on recent progress in the understanding of active galaxies, and the use of these sources ...EGRET; GLAST; VERITAS2001
57 Couldwell, William T.Glioma invasionA characteristic pathological feature of malignant glioma cells is their ability to extensively invade surrounding brain parenchyma-particularly along white matter tracts- thus rendering focal therapies incapable of controlling tumor growth and resulting in inevitable recurrence. In this regard, ...2001
58 Johnson, Christopher R.Grid-enabling problem solving environments: a case study of SCIRun and NetSolveCombining the functionality of NetSolve, a grid-based middleware solution, with SCIRun, a graphically-based problem solving environment (PSE), yields a platform for creating and executing grid-enabled applications. Using this integrated system, hardware and/or software resources not previously ac...Grid computing; SCIRun; NetSolve; Problem solving environment; Numerical libraries; Parallel programming (Computer science)2001
59 Armentrout, Peter B.Guided ion beam study of collision-induced dissociation dynamics: integral and differential cross sectionsThe low energy collision-induced dissociation (CID) of Cr(CO)6+ with Xe is investigated using a recently modified guided ion beam tandem mass spectrometer, in the energy range from 0 to 5 eV in the center-of-mass (CM) frame. The additions to the instrument, updated with a double octopole system, and...Collision-induced dissociation; Bond energies; Chromium carbonyl; Xenon2001
60 Couldwell, William T.History and evolution of transsphenoidal surgeryInitial attempts at transcranial approaches to the pituitary gland in the late 1800s and early 1900s resulted in a mortality rate that was generally considered prohibitive. Schloffer suggested the use of a transsphenoidal route as a safer, alternative approach to the sella turcica. He reported the f...Neurosurgical history; Transsphenoidal surgery; Pituitary tumor2001
61 Linton, Matthew J.Hydraulic conductivity, xylem cavitation, and water potential for succulent leaves of agave deserti and agave tequilanaAxial hydraulic conductivity (Kh) was measured for fresh, dehydrated, and rehydrated leaves of the Crassulacean acid metabolism (CAM) leaf succulents, Agave deserti and Agave tequilana. Dehydration of leaves at 35(o)C for several hours caused Kh to decrease, with a 50% decrease occurring at a leaf w...Transpiration; Dehydrated; Drought2001
62 Zhang, KangIdentification and functional consequences of a new mutation (E155G) in the gene for GCAP1 that causes autosomal dominant cone dystrophy2001
63 Hansen, Charles D.; Hollerbach, John M.Improved calibration Framework for electromagnetic tracking devicesElectromagnetic trackers have many favorable characteristics but are notorious for their sensitivity to magnetic field distortions resulting from metal and electronic equipment in the environment. We categorize existing tracker calibration methods and present an improved technique for reducing stati...Electromagnetic tracking; Tracking devices2001
64 Guilkey, James EdwardImproved contact algorithm for the material point method and application to stress propagation in granular materialContact between deformable bodies is a difficult problem in the analysis of engineering systems. A new approach to contact has been implemented using the Material Point Method for solid mechanics, Bardenhagen, Brackbill, and Sulsky (2000a). Here two improvements to the algorithm are described. The f...Contact algorithm; Material point method; Wave propagation; Granular material; Solid mechanics2001
65 McElreath, RichardIn search of homo economicus: behavioral experiments in 15 small scale societiesRecent investigations have uncovered large, consistent deviations from the predictions of the textbook representation of Homo economicus One problem appears to lie in economists' canonical assumption that individuals are entirely self-interested: in addition to their own material payoffs, many exper...Economic behavior; Self-interest; Fairness; Reciprocity2001
66 Bedrov, Dmitro; Smith, Grant D.Integral equation theory for polymer solutions: explicit inclusion of the solvent moleculesSelf-consistent Polymer Reference Interaction Site Model (PRISM) calculations and molecular dynamics (MD) simulations were performed on athermal solutions of linear polymers. Unlike most previous treatments of polymer solutions, we explicitly included the solvent molecules. The polymers were mode...Solvent molecules; Polymer Reference Interaction Site Model; PRISM; Spinodal curve; Intramolecular dimensions; Intermolecular packing; Phase behavior2001
67 Hansen, Charles D.Interactive texture-based volume rendering for large data setsVisualization is an integral part of scientific computation and simulation. State-of-the-art simulations of physical systems can generate terabytes to petabytes of time-varying data where a single time step can contain more than a gigabyte of data per variable. As memory sizes continue to increase, ...Parallel rendering; Volume rendering; TRex2001
68 Hansen, Charles D.Interactive volume rendering using multi-dimensional transfer functions and direct manipulation widgetsMost direct volume renderings produced today employ one-dimensional transfer functions, which assign color and opacity to the volume based solely on the single scalar quantity which comprises the dataset. Though they have not received widespread attention, multi-dimensional transfer functions are a ...Volume rendering; Volume visualization; Direct volume rendering; Multidimensional transfer functions; Direct manipulation widgets; Graphics hardware2001
69 Hansen, Charles D.Interactive volume rendering using multi-dimensional transfer functions and direct manipulation widgetsMost direct volume renderings produced today employ onedimensional transfer functions, which assign color and opacity to the volume based solely on the single scalar quantity which comprises the dataset. Though they have not received widespread attention, multi-dimensional transfer functions are a v...Volume rendering; Volume visualization; Direct volume rendering; Multidimensional transfer functions; Direct manipulation widgets; Graphics hardware2001
70 Pugmire, Ronald J.Investigation of the structural conformation of biphenyl by solid state 13C NMR and quantum chemical NMR shift calculationsThe principal values of the 13C chemical-shift tensor (CST) for biphenyl have been determined with the FIREMAT experiment. The internal dihedral angle between the benzene rings in biphenyl is estimated to fall between 10 and 20° on the basis of quantum mechanical calculations of the CST principal v...Carbon-13; Chemical-shift tensor; biphenyl; FIREMAT2001
71 Couldwell, William T.Irving S. Cooper and the early surgical management of movement disordersIrving S. Cooper was a pioneer in the field of functional neurosurgery. During his very productive and controversial career, he proposed the surgical treatment of Parkinson disease (PD) by ligating the anterior choroidal artery to control tremor and rigidity. Subsequently, he developed seminal techn...Functional neurosurgery; Movement disorder; Video2001
72 Stringfellow, Gerald B.Kinetics of Te doping in disordering GaInP grown by organometallic vapor phase epitaxyTe-doped GaInP epitaxial layers were grown by organometallic vapor phase epitaxy in an effort to clarify the Te disordering mechanism. CuPt ordered GaInP is produced under normal growth conditions. The addition of Te has been reported to induce disorder. One suggested mechanism for disordering GaInP...Crystal growth; Epitaxy; Dynamics2001
73 Henderson, Thomas C.Leadership protocol for S-NetsSmart Sensor Networks are collections of non-mobile devices (S-elements) which can compute, communicate and sense the environment; they must be able to create local groups of devices (S-cliques). We propose here a protocol to solve the leadership problems for S-Nets. We sketch the correctness of thi...Smart Sensor Networks; S-Nets2001
74 Zimmer, ZacharyLiving arrangements of older adults in the developing world: an analysis of DHS household surveysUsing data from Demographic and Health Surveys, this study examines living arrangements of older adults in 43 developing countries and compares patterns by gender, world regions, and macro-level measures of socioeconomic development. Indicators include household size, headship, relationship to head...Demographic and Health Surveys; Living arrangements; Older adults2001
75 Riloff, Ellen M.Looking under the hood: tools for diagnosing your question answering engineIn this paper we analyze two question answering tasks : the TREC-8 question answering task and a set of reading comprehension exams. First, we show that Q/A systems perform better when there are multiple answer opportunities per question. Next, we analyze common approaches to two subproblems: ter...TREC-8; Performance2001
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