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CreatorTitleDescriptionSubjectDate
301 Vardeny, Zeev ValentineOptical studies of the charge transfer complex in polytiophene/fullerene blends for organic photovoltaic applicationsWe studied the photophysics of regioregular polythiophene/C61 (RR-P3HT/PCBM) blend films utilized for organic photovoltaic applications using the femtosecond transient and steady-state photomodulation techniques with above-gap and below-gap pump excitations and electroabsorption spectroscopy. We pro...2010-08
302 Propensities for return migration for race/ethnic groups across nonmetropolitan and metropolitan countiesLeaving a community is generally a difficult undertaking for a family or individual. Yet five percent or 15 million Americans leave one county to live in another yearly (http://www.census.gov.) Prior research has shown that repeat migration makes up a large share of these migrations. Although a ri...Relocation; Neighborhoods; Communities; Race2005-03-25
303 Olivera, Baldomero M.Block of Shaker K+ channels by ĸ-conotoxin PVIIA is state dependentĸ-conotoxin PVIIA is the first conotoxin known to interact with voltage-gated potassium channels by inhibiting Shaker-mediated currents. We studied the mechanism of inhibition and concluded that PVIIA blocks the ion pore with a 1:1 stoichiometry and that binding to open or closed channels is very d...Conotoxins; k-conotoxin PVIIA; Potassium channel blockers; Shaker K+ channels1999
304 Morse, Michael DavidOptical spectroscopy of jet-cooled FeC between 12 000 and 18 100 cm-?Iron monocarbide has been investigated between 12 000 and 18 100 cm21 in a supersonic expansion by resonant two-photon ionization spectroscopy. Six new electronic states have been identified for which origins relative to the ground state have been determined. Three of these possess ?"=3, one possess...1997
305 Normann, Richard A.; Shoham, ShyEncoding mechanisms for sensory neurons studied with a multielectrode array in the cat dorsal root ganglionRecent advances in microelectrode array technology now permit a direct examination of the way populations of sensory neurons encode information about a limb's position in space. To address this issue, we recorded nerve impulses from about 100 single units simultaneously in the L6 and L7 dorsal root ...Sensory; Encoding; Multielectrode; Dorsal Root Ganglion; Cutaneour; Muscle2004
306 McDaniel, SusanBorn at the right time?: gendered generations and webs of entitlement and responsibilityAnalyses of social change and challenge in sociologies for women often start with some attention to generation. Yet, generation per se has been an underconceptualized sociological construct as a structural dimension of stratification, particularly gender stratification, or as a lens through which...Generation; Gender; Women2001
307 Stringfellow, Gerald B.Electrical properties of nitrogen doped GaPThe electrical properties namely, electron concentration and mobility, have been investigated in the temperature range from 53 to 400 K for undoped and nitrogen-doped VPE GaP.Electron concentration; Ionization energy; Electron mobility1975
308 Sperry, John S.Embolized conduits of rice (Oryza sativa, poaceae) refill despite negative xylem pressureEmbolism reversal in rice plants was studied by testing the plant's ability to refill embolized conduits while xylem pressures were substantially negative. Intact, potted plants were water-stressed to a xylem pressure of -1.88 + 0.1 MPa and a 66.3 + 3.8% loss of xylem conductivity (PLC) by cavitatio...Embolism; novel revilling; Oryza2005
309 Miller, Jan D.; Lin, Chen-LuhOn-line washability analysis for the control of coarse coal cleaning circuitsIn view of the success of recent laboratory studies using X-ray computed tomography (CT) to determine coal washability and with the availability of high-speed CT systems, it now seems possible to design an on-stream washability system for the control of coarse coal-cleaning circuits. Design features...On-stream washability; CT analyzer; Coal washability1995
310 Liu, FengOrigin of intergranular embrittlement of Al alloys induced by Na and Ca segregation: grain boundary weakeningUsing a first-principles computational tensile test, we show that the ideal tensile strength of an Al grain boundary (GB) is reduced with both Na and Ca GB segregation. We demonstrate that the fracture occurs in the GB interface, dominated by the break of the interfacial bonds. Experimentally, we f...Intergranular embrittlement; Grain boundary; Intergranular fracture2006-06
311 Miller, Jan D.Synthesis of DME from CO₂/H₂ gas mixtureThe activity and durability of two hybrid bifunctional dimethyl ether (DME) synthesis catalysts: 6CuO-3ZnO-Al2O3/ƴ-Al2O3 and 6CuO-3ZnO-1Al2O3/HZSM-5, have been evaluated for the conversion of CO2/H2 to DME at 260oC, 5 MPa, and gas per hourly space velocity (GHSV) of 3000 mL gcat -1 h-1 in fixed-bed...2011-01-01
312 Balasubramonian, RajeevDynamically tunable memory hierarchyThe widespread use of repeaters in long wires creates the possibility of dynamically sizing regular on-chip structures. We present a tunable cache and translation lookaside buffer (TLB) hierarchy that leverages repeater insertion to dynamically trade off size for speed and power consumption on a per...Microarchitecture; High performance microprocessors; Reconfigurable architectures; Energy and performance of on-chip caches; Translation lookaside buffer (TLB); Tunable cache2003-10
313 Regehr, JohnEliminating stack overflow by abstract interpretationAn important correctness criterion for software running on embedded microcontrollers is stack safety: a guarantee that the call stack does not overflow. Our first contribution is a method for statically guaranteeing stack safety of interrupt-driven embedded software using an approach based on contex...2005-01-01
314 Morse, Michael David???X??+ band systems of jet-cooled ScCo and YCoRotationally resolved resonant two-photon ionization (R2PI) spectra of ScCo and YCo are reported. The measured spectra reveal that these molecules possess ground electronic states of 1?+ symmetry, as previously found in the isoelectronic Cr2 and CrMo molecules. The ground state rotational constant...2010
315 Williams, Clayton C.Advances in experimental technique for quantitative two dimensional dopant profiling by scanning capacitance microscopySeveral advances have been made toward the achievement of quantitative two-dimensional dopant and carrier profiling. To improve the dielectric and charge properties of the oxide-silicon interface, a method of low temperature heat treatment has been developed which produces an insulating layer with c...Doping; Scanning capacitance microscope; SCM1999
316 Wu, Yong-ShiDeformed Hubbard operator, bosonization, and phase diagram of the one-dimensional t-J modelWe present an analytic study of the phase diagram of the one-dimensional t-J model and a couple of its cousins. To deal with the interactions induced by the no double occupancy constraints, we introduce a deformation of the Hubbard operators. When the deformation parameter ∆ is small, the induced...Hubbard operator; Bosonization; Deformation; t-J model2002-10
317 DeTar, CarletonLattice calculation of 1-+ hybrid mesons with improved Kogut-Susskind fermionsWe report on a lattice determination of the mass of the exotic 1-+ hybrid meson using an improved Kogut-Susskind action. Results from both quenched and dynamical quark simulations are presented. We also compare with earlier results using Wilson quarks at heavier quark masses. The results on lattice...Staggered quarks; Kogut-Susskind fermions2003-10
318 Farmer, Colleen G.Parental care: the key to understanding endothermy and other convergent features in birds and mammalsBirds and mammals share a number of features that are remarkably similar but that have evolved independently. One of these characters, endothermy, has been suggested to have played a cardinal role in avian and mammalian evolution. I hypothesize that it is parental care, rather than endothermy, that ...Evolution; Metabolism; Convergence2000
319 Freier, Rodney; Thompson, William B.Design-space exploration of most-recent-only communication using myrinet on SGI ccNUMA architecturesSGI's current ccNUMA multiprocessor architectures offer high scalability and performance without sacrificing the ease of use of simpler SMP systems. Although these systems also provide a standard PCI expansion bus, the bridging between PCI and SGI's ccNUMA architecture invalidates the assumptions ty...Most-recent-only communication; Myrinet; SGI; Communications latencies1999
320 Bastiani, MichaelCell-cell interactions during the migration of an identified commissural growth cone in the embryonic grasshopperOne of the fascicles of the posterior commissure of the embryonic grasshopper is pioneered by an individually identifiable neuron named Q1. Q1 initially grows along a longitudinal pathway established by another pioneer neuron, MPl, and then crosses to the midline, where it meets and fasciculates wi...Commissure; Pathfinding; Filopodia1993
321 Wolfinger, Nicholas H.Dispelling the pipeline myth: gender, family formation, and alternative trajectories in the academic life courseAcademic careers have traditionally been conceptualized as pipelines, through which young scholars move continuously from graduate school to tenure-track positions. This understanding often fails to capture the experiences of female Ph.D. recipients, who take ladder-rank assistant professorships at ...Careers, academic; Tenure; Teaching, higher education; Employment2006-07-20
322 Scarpulla, MichaelGa1-xMnxP synthesized by ion implantation and pulsed-laser meltingThe synthesis of single-crystalline epitaxial thin films of the carrier-mediated ferromagnetic phase of Ga1-xMnxP and Ga1-xMnxP-based quaternary alloys using ion implantation and pulsed-laser melting (II-PLM) has allowed for the exploration of the effect of anion substitution on ferromagnetism in Ga...2008
323 Yu, ZhouMisleading comparisons of homeownership rates between groups and over time: the effects of variable household formationDespite ominous signs of housing market stress, the homeownership rate reached an all time high in 2006. We seek to understand whether the conventional definition of homeownership, which is based on the share of households and ignores the effects of variable household formation, has confounded the a...2009
324 Gerton, JordanNanoscale fluorescence microscopy using carbon nanotubesWe demonstrate the first reported use of single-walled carbon nanotubes as nano-optical probes in apertureless nearfield fluorescence microscopy. We show that, in contrast to silicon probes, carbon nanotubes always cause strong fluorescence quenching when used to image dye-doped polystyrene spheres...2008
325 Carter, John B.Reducing consistency traffic and cache misses in the avalanche multiprocessorFor a parallel architecture to scale effectively, communication latency between processors must be avoided. We have found that the source of a large number of avoidable cache misses is the use of hardwired write-invalidate coherency protocols, which often exhibit high cache miss rates due to exces...Consistency traffic; Cache misses; Parallel architecture; Communication latency1995
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