Now showing items 255-274 of 892

    • The Harang reversal and the interchange stability of the magnetotail 

      Ohtani, Shinichi; Gkioulidou, Matina; Wang, Chih-Ping; Wolf, Richard A. (2016)
      The present study addresses steady convection in the plasma sheet in terms of the interchange stability with special attention to the Harang reversal. The closure of the tail current with a field-aligned current (FAC) ...
    • Heavy-fermion quantum criticality and destruction of the Kondo effect in a nickelᅠoxypnictide 

      Luo, Yongkang; Pourovskii, Leonid; Rowley, S.E.; Li, Yuke; Feng, Chunmu; Georges, Antoine; Dai, Jianhui; Cao, Guanghan; Xu, Zhuメan; Si, Qimiao; Ong, N.P. (2014)
      A quantum critical point arises at a continuous transformation between distinct phases of matter at zero temperature. Studies in antiferromagnetic heavy-fermion materials have revealed that quantum criticality has several ...
    • Helical Quantum Edge Gears in 2D Topological Insulators 

      Chou, Yang-Zhi; Levchenko, Alex; Foster, Matthew S. (2015)
      We show that two-terminal transport can measure the Luttinger liquid (LL) parameter K, in helical LLs at the edges of two-dimensional topological insulators (TIs) with Rashba spin-orbit coupling. We consider a Coulomb drag ...
    • Hierarchy in gene expression is predictive of risk, progression, and outcome in adult acute myeloid leukemia 

      Tripathi, Shubham; Deem, Michael W. (2015)
      Cancer progresses with a change in the structure of the gene network in normal cells. We define a measure of organizational hierarchy in gene networks of affected cells in adult acute myeloid leukemia (AML) patients. With ...
    • Hierarchy of gene expression data is predictive of future breast cancer outcome 

      Chen, Man; Deem, Michael W. (2013)
      We calculate measures of hierarchy in gene and tissue networks of breast cancer patients. We find that the likelihood of metastasis in the future is correlated with increased values of network hierarchy for expression ...
    • High Chromaticity Aluminum Plasmonic Pixels for Active Liquid Crystal Displays 

      Olson, Jana; Manjavacas, Alejandro; Basu, Tiyash; Huang, Da; Schlather, Andrea E.; Zheng, Bob; Halas, Naomi; Nordlander, Peter; Link, Stephan (2016)
      Chromatic devices such as flat panel displays could, in principle, be substantially improved by incorporating aluminum plasmonic nanostructures instead of conventional chromophores that are susceptible to photobleaching. ...
    • High e+/e− Ratio Dense Pair Creation with 1021W.cm−2 Laser Irradiating Solid Targets 

      Liang, E.; Clarke, T.; Henderson, A.; Fu, W.; Lo, W.; Taylor, D.; Chaguine, P.; Zhou, S.; Hua, Y.; Cen, X.; Wang, X.; Kao, J.; Hasson, H.; Dyer, G.; Serratto, K.; Riley, N.; Donovan, M.; Ditmire, T. (2015)
      We report results of new pair creation experiments using ~100 Joule pulses of the Texas Petawatt Laser to irradiate solid gold and platinum targets, with intensities up to ~1.9 × 10(21) W.cm(-2) and pulse durations as short ...
    • High hardness in the biocompatible intermetallic compound β-Ti3Au 

      Svanidze, Eteri; Besara, Tiglet; Ozaydin, M. Fevsi; Tiwary, Chandra Sekhar; Wang, Jiakui K.; Radhakrishnan, Sruthi; Mani, Sendurai; Xin, Yan; Han, Ke; Liang, Hong; Siegrist, Theo; Ajayan, Pulickel M.; Morosan, E. (2016)
      The search for new hard materials is often challenging, but strongly motivated by the vast application potential such materials hold. Ti3Au exhibits high hardness values (about four times those of pure Ti and most steel ...
    • High-Ampacity Power Cables of Tightly-Packed and Aligned Carbon Nanotubes 

      Wang, Xuan; Behabtu, Natnael; Young, Colin C.; Tsentalovich, Dmitri E.; Pasquali, Matteo; Kono, Junichiro (2014)
      The current-carrying capacity (CCC), or ampacity, of highly-conductive, light, and strong carbon nanotube (CNT) fibers is characterized by measuring their failure current density (FCD) and continuous current rating (CCR) ...
    • A high-throughput three-dimensional cell migration assay for toxicity screening with mobile device-based macroscopic image analysis 

      Timm, David M.; Chen, Jianbo; Sing, David; Gage, Jacob A.; Haisler, William L.; Neeley, Shane K.; Raphael, Robert M.; Dehghani, Mehdi; Rosenblatt, Kevin P.; Killian, T.C.; Tseng, Hubert; Souza, Glauco R. (2013)
      There is a growing demand for in vitro assays for toxicity screening in three-dimensional (3D) environments. In this study, 3D cell culture using magnetic levitation was used to create an assay in which cells were patterned ...
    • How input fluctuations reshape the dynamics of a biological switching system 

      Hu, Bo; Kessler, David A.; Rappel, Wouter-Jan; Levine, Herbert (2012)
      An important task in quantitative biology is to understand the role of stochasticity in biochemical regulation. Here, as an extension of our recent work [Phys. Rev. Lett. 107, 148101 (2011)], we study how input ...
    • How input noise limits biochemical sensing in ultrasensitive systems 

      Hu, Bo; Rappel, Wouter-Jan; Levine, Herbert (2014)
      Many biological processes are regulated by molecular devices that respond in an ultrasensitive fashion to upstream signals. An important question is whether such ultrasensitivity improves or limits its ability to read out ...
    • Hydrogen Diffusion and Stabilization in Single-Crystal VO2 Micro/Nanobeams by Direct Atomic Hydrogenation 

      Lin, Jian; Ji, Heng; Swift, Michael W.; Hardy, Will J.; Peng, Zhiwei; Fan, Xiujun; Nevidomskyy, Andriy H.; Tour, James M.; Natelson, Douglas (2014)
      We report measurements of the diffusion of atomic hydrogen in single crystalline VO2 micro/nanobeams by direct exposure to atomic hydrogen, without catalyst. The atomic hydrogen is generated by a hot filament, and the ...
    • Hyper-generalized-gradient functionals constructed from the Lieb-Oxford bound: Implementation via local hybrids and thermochemical assessment 

      Haunschild, Robin; Odashima, Mariana M.; Scuseria, Gustavo E.; Perdew, John P.; Capelle, K. (2012)
      In 2009 Odashima and Capelle (OC) showed a way to design a correlation-only density functional that satisfies a Lieb-Oxford bound on the correlation energy, without empirical parameters and even without additional theoretical ...
    • Hyperfine structure in photoassociative spectra of Li26 and Li2 

      Abraham, E.R.I.; McAlexander, W.I.; Stoof, H.T.C.; Hulet, R.G. (1996)
      We present spectra of hyperfine resolved vibrational levels of the A1Σ+uand 13Σ+g states of Li26 and Li27 obtained via photoassociation of colliding ultracold atoms in a magneto-optical trap. A simple first-order perturbation ...
    • Identification of b-quark jets with the CMS experiment 

      CMS Collaboration; Adair, A.; Boulahouache, C.; Ecklund, K.M.; Geurts, F.J.M.; Padley, B.P.; Redjimi, R.; Roberts, J.; Zabel, J. (2013)
      At the Large Hadron Collider, the identification of jets originating from b quarks is important for searches for new physics and for measurements of standard model processes. A variety of algorithms has been developed by ...
    • Identification techniques for highly boosted W bosons that decay into hadrons 

      CMS Collaboration; Adair, A.; Akgun, B.; Ecklund, K.M.; Geurts, F.J.M.; Li, W.; Michlin, B.; Padley, B.P.; Redjimi, R.; Roberts, J.; Zabel, J. (2014)
      In searches for new physics in the energy regime of the LHC, it is becoming increasingly important to distinguish single-jet objects that originate from the merging of the decay products of W bosons produced with high ...
    • Identified Hadron Compositions in p+p and Au+Au Collisions at High Transverse Momenta at √sNN=200  GeV 

      STAR Collaboration; Eppley, G.; Geurts, F.; Llope, W.J.; McDonald, D.; Roberts, J.B.; Yepes, P. (2012)
      We report transverse momentum (pT≤15  GeV/c) spectra of π±, K±, p, p¯, K0S, and ρ0 at midrapidity in p+p and Au+Au collisions at √sNN=200  GeV. Perturbative QCD calculations are consistent with π± spectra in p+p collisions ...
    • Images of Edge Current inᅠInAs/GaSbᅠQuantum Wells 

      Spanton, Eric M.; Nowack, Katja C.; Du, Lingjie; Sullivan, Gerard; Du, Rui-Rui; Moler, Kathryn A. (2014)
      Quantum spin Hall devices with edges much longer than several microns do not display ballistic transport; that is, their measured conductances are much less thanᅠe2/hᅠper edge. We imaged edge currents inᅠInAs/GaSbᅠquantum ...
    • Imaging molecular adsorption and desorption dynamics on graphene using terahertz emission spectroscopy 

      Ajayan, P.M.; Kono, J.; Tonouchi, M. (2014)
      Being an atomically thin material, graphene is known to be extremely susceptible to its environment, including defects and phonons in the substrate on which it is placed as well as gas molecules that surround it. Thus, any ...