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Creator | Title | Description | Subject | Date |
| 351 |
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Mishchenko, Eugene; Raikh, Mikhail E. | Electrostatics of straight and bent single-walled carbon nanotubes | Response of a single-walled carbon nanotube to external electric field, F, is calculated analytically within the classical electrostatics. Field-induced charge density distribution is approximately linear along the axis of a metallic nanotube and depends rather weakly, as ln(h/ r), on the nanotube... | Electrostatics | 2006-10 |
| 352 |
 |
Symko, Orest George | Exchange interactions and magnetic dimension in Cu(L-alanine)2 | A study of the magnetic properties of the copper (II) complex of the amino acid L-alanine [CU(Lalanine) 2] is reported. The susceptibility of a powder sample has been measured between 0.013 and 240 K. A linear-spin-chain model with antiferromagnetic exchange coupling J = -0.52 K fits well the susce... | Cu(L-alanine)2; Exchange interactions; Magnetic dimension | 1991-01 |
| 353 |
 |
Jorgensen, Erik | UNC-11, a Caenorhabditis elegans AP180 homologue, regulates the size and protein composition of synaptic vesicles | The unc-11 gene of Caenorhabditis elegans encodes multiple isoforms of a protein homologous to the mammalian brain-specific clathrin-adaptor protein AP180. The UNC-11 protein is expressed at high levels in the nervous system and at lower levels in other tissues. In neurons, UNC-11 is enriched at pr... | Caenorhabditis elegans; Synaptic vesicles; unc-11; Synaptobrevin; Endocytosis | 1999 |
| 354 |
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Rogachev, Andrey | Determination of the superconductor-insulator phase diagram for one-dimensional wires | We establish the superconductor-insulator phase diagram for quasi-one-dimensional wires by measuring a large set of MoGe nanowires. This diagram is roughly consistent with the Chakravarty-Schmid-Bulgadaev phase boundary, namely, with the critical resistance being equal to RQ ¼ h=4e2. Deviations fr... | One-dimensional wires; Superconductor-insulator phase diagram; MoGe; Chakravarty-Schmid-Bulgadaev; Phase boundary | 2008-11 |
| 355 |
 |
Ailion, David Charles; Morris, Alan H. | Asymmetric spin echo sequences. a simple new method for obtaining NMR 1H spectral images | The nuclear magnetic resonance (NMR) signal decay produced by reversible tissue-induced dephasing of the magnetization components in the transverse plane (reversible tissue-induced dephasing) was measured and expressed as a function of a new transverse relaxation time T'2 (T2 prime) for samples of ... | Asymmetric spin echo; Signal decay; Chemical shift; Tissue characterization; Lung aeration; Fatty liver | 1985 |
| 356 |
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DeTar, Carleton | Quenched hadron spectroscopy with improved staggered quark action | We investigate light hadron spectroscopy with an improved quenched staggered quark action. We compare the results obtained with an improved gauge plus an improved quark action, an improved gauge plus standard quark action, and the standard gauge plus standard quark action. Most of the improvement ... | Staggered quarks; Chiral symmetry; Flavor symmetry | 1998-07 |
| 357 |
 |
Vardeny, Zeev Valentine | Directional emission from asymmetric microlaser resonators of ∏-conjugated polymers | A ∏-conjugated polymer film was fabricated into an asymmetric microlaser resonator having a quadrapole deformation with irregular boundaries and a Q factor of 600. At high excitation intensities above the threshold for lasing, we observed multimode laser emission spectra and directional emission a... | Directional emission; Asymmetric microlaser resonators; pi-conjugated polymers; DOO-PPV; poly(dioctyloxy) phenylene vinylene | 2004 |
| 358 |
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Wu, Yong-Shi | Suppression of local degrees of freedom of gauge fields by chiral anomalies | A path-integral quantization is presented for the chiral Schwinger model on a Riemann surface. Gauge invariance is maintained by integrating over all gauge potentials without the usual gauge fixing. All local degrees of freedom of the gauge field are suppressed after the integration of the anomalous... | Chiral anomalies; Degrees of freedom | 1990-08 |
| 359 |
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Mattis, Daniel C.; Paul, Prabasaj | Statistical transfer matrix of a spin-glass ladder | This work concerns the Edwards-Anderson Ising model of a spin ladder, in which random bonds +_J connect nearest-neighbor Ising spins. We calculate the exact free energy of the quenched, frustrated, spin-glass-like ladder as an integral over a probability distribution P(x), the eigenfunction of a s... | Thermodynamics; Ising | 1999 |
| 360 |
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DeTar, Carleton | Exotic mesons in quenched lattice QCD | Since gluons in QCD are interacting fundamental constituents just as quarks are, we expect that in addition to mesons made from a quark and an antiquark, there should also be glueballs and hybrids ~bound states of quarks, antiquarks, and gluons!. In general, these states would mix strongly with th... | Hybrid mesons; Antiquarks | 1997-12 |
| 361 |
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Saam, Brian | Wall relaxation of 3He in spin-exchange cells | The 3He longitudinal spin-relaxation rate T1-1 is crucial for production of highly polarized 3He by spin-exchange optical pumping. We show that T1-1 is increased by a factor of 2-20 solely by exposure of spin-exchange cells to a few-kG magnetic field. The original T1-1 can be restored by degaussing ... | Wall relaxation; Spin-exchange cells; 3He; Longitudinal spin-relaxation; Spin-exchange optical pumping; SEOP; Hyperpolarized 3He; Surface magnetism; Glass cells | 2001-09 |
| 362 |
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Vardeny, Zeev Valentine | Optical studies of metallodielectric photonic crystals: bismuth and gallium infiltrated opals | We have fabricated three-dimensional metallodielectric photonic crystals that consist of bismuth and gallium metals infiltrated into porous synthetic opals that have 300 nm diam silica balls. The specular reflectivity was measured in a broad spectral range from 0.3 to 25 mm using a variety of light ... | Metallodielectric photonic crystals; Bismuth infiltrated opals; Gallium infiltrated opals; Bragg; Porous synthetic opals | 2004 |
| 363 |
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Capecchi, Mario R. | Gene targeting: an historical perspective | Our entry into what was going to become the field of gene targeting began in 1977. I was experimenting with the use of extremely small glass needles to inject DNA directly into the nuclei of living cells. The needles were controlled by hydraulically driven micro-manipulators and were directed into n... | Gene targeting -- History; Homologous recombination | 1998 |
| 364 |
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Vardeny, Zeev Valentine | Specific heats and lattice dynamics of cuprous halides | The specific heats Cp(T) of CuCl, CuBr, and Cul were measured by the adiabatic calorimetric technique. The corresponding Debye temperature for each crystal is given and a comparison between the results is drawn. The room-temperature phonon dispersion relations for these cystals are fitted by a nine... | Cuprous halides; CuBr; CuCl; CuI | 1978-10 |
| 365 |
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Wu, Yong-Shi | Near-horizon Virasoro symmetry and the entropy of de Sitter space in any dimension | De Sitter spacetime is known to have a cosmological horizon that enjoys thermodynamic-like properties similar to those of a black hole horizon. In this note we show that a universal argument can be given for the entropy of de Sitter spacetime in arbitrary dimensions, by generalizing a recent near ho... | | 1999-05 |
| 366 |
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Bohs, Lynn A. | Phylogenetic relationships in Solanum (Solanaceae) based on ndhF sequences | A phylogenetic analysis was conducted using sequence data from the chloroplast gene ndhF. Sequences were obtained from 25 species of Solanaceae, including 18 species of Solanum representing five of the seven conventionally recognized subgenera. | Solanum; ndhF | 1997 |
| 367 |
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Symko, Orest George | Size considerations in interfacing thermoacoustic coolers with electronics | Small thermoacoustic coolers heat pumps show much promise for heat management in microcircuits, especially since they can be miniaturized for interfacing with circuits. Usually they are operated in the resonant mode with sound pumping heat; the device dimensions are reduced when the acoustic pump fr... | Thermoacoustic coolers; Heat management; Microcircuits; Miniturization | 2002 |
| 368 |
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Vardeny, Zeev Valentine | High-pressure study of picosecond exciton dynamics in solid C60 | We have studied the singlet exciton decay by picosecond photoinduced absorption in films of Qo, under pressures up to 62 kbar. The picosecond decay of excitons excited in the absorption tail continues to be dominated by broad distributions of lifetimes at high pressure. These results suggest that th... | Picosecond exciton dynamics; Solid C60 | 1994-08 |
| 369 |
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Golden, Kenneth M. | Laboratory measurements of sea ice: connections to microwave remote sensing | The connections between laboratory measurements and remote-sensing observations of sea ice are explored. The focus of this paper is on thin ice, which is more easily simulated in a laboratory environment. We summarize results of C-band scatterometer measurements and discuss how they may help in the ... | Electromagnetic; Radar; Backscatter | 1998 |
| 370 |
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Williams, Clayton C. | Evidence of internal fields in two-variant ordered GaInP2 by near-field scanning optical microscopy | GaInP2 is studied in cross section with the scanning capacitance and near-field scanning optical microscope. Our study shows significant differences in the electronic and optical properties between ordered single- and two-variant GaInP2. In single-variant samples, spatially uniform capacitance signa... | Photoluminescence; GaInP2; Microscopy; Electrical fields | 1997 |
| 371 |
 |
Mishchenko, Eugene | Mesoscopic spin-Hall effect in 2D electron systems with smooth boundaries | The spin-Hall effect in a ballistic 2D electron gas with Rashba-type spin-orbit coupling and smooth edge confinement is studied. We predict that the interplay of semiclassical electron motion and quantum dynamics of spins leads to several distinct features in spin density along the edge that origina... | Spin- Hall effect; 2D electron systems | 2009-05 |
| 372 |
 |
Symko, Orest George | Does the quasicrystal AlCuFe follow Ohm's law? | We present the first measurements of the electrical I-V characteristics of AlCuFe quasicrystalline thin films processed by solid state interdiffusion of magnetron sputtered Al, Cu, and Fe layers. Despite the peculiar electronic properties of quasicrystals, our results show that those samples follow ... | AlCuFe; Quasicrystal | 1994-10 |
| 373 |
 |
Miller, Joel Steven; Epstein, Arthur J. | Molecule-based magnets - an overview | Molecule-based* magnets are a broad, emerging class of magnetic materials that expand the materials properties typically associated with magnets to include low density, transparency, electrical insulation, and low-temperature fabrication, as well as combine magnetic ordering with other proper... | Spin; Magnetization; Magnetic ordering | 2000 |
| 374 |
 |
Sokolsky, Pierre | Energy estimation of UHE cosmic rays using the atmospheric fluorescence technique | We use the CORSIKA air shower simulation program to review the method for assigning energies to ultra-high energy (UHE) cosmic rays viewed with the air fluorescence technique. This technique uses the atmosphere as a calorimeter, and we determine the corrections that must be made to the calorimetric ... | Fluorescence; Energy estimation; Ultra-high energy cosmic rays | 2000-08 |
| 375 |
 |
Miller, Joel Steven; Epstein, Arthur J. | Anomalous relaxation in a quasi-one-dimensional fractal cluster glass | The low-temperature spin glass state of the quasi-1D organic-based magnet [MnTPP]+[TCNE]- .x(1,3-C6H4Cl2) has unusually long relaxation times due to frustration induced by dipole-dipole interactions between fractal spin clusters. This long relaxation is investigated with in-field relaxation measurem... | Sweep rate; Bifurcation; Magnetization | 2004 |
