Now showing items 390-409 of 866

  • Label-free chemically specific imaging in planta with stimulated Raman scattering microscopy. 

    Mansfield, Jessica; Littlejohn, George; Seymour, Mark P.; Lind, Rob; Perfect, Sarah; Moger, Julian (American Chemical Society, 2013-05-21)
    The growing world population puts ever-increasing demands on the agricultural and agrochemical industries to increase agricultural yields. This can only be achieved by investing in fundamental plant and agrochemical research ...
  • Label-free imaging of fatty acid content within yeast samples 

    Garrett, N; Moger, J (Society of Photo-optical Instrumentation Engineers (SPIE), 2013-05-27)
    Fungi have been found to be an underlying cause of 70% of all plant and animal extinctions caused by infectious diseases. Fungal infections are a growing problem affecting global health, food production and ecosystems. ...
  • Lamellar and fibre bundle mechanics of the annulus fibrosus in bovine intervertebral disc 

    Vergari, C; Mansfield, J; Meakin, J; Winlove, CP (Elsevier, 2016-04-06)
    The intervertebral disc is a multicomposite structure, with an outer fibrous ring, the annulus fibrosus, retaining a gel-like core, the nucleus pulposus. The disc presents complex mechanical behaviour, and it is of high ...
  • Large amplitude magnetization dynamics and the suppression of edge modes in a single nanomagnet 

    Keatley, Paul Steven; Gangmei, Prim; Dvornik, Mykola; Hicken, R.J.; Childress, J.R.; Katine, J.A. (American Institute of Physics, 2011)
    Large amplitude magnetization dynamics of a single square nanomagnet have been studied by time-resolved Kerr microscopy. Experimental spectra revealed that only a single mode was excited for all bias field values. Micromagnetic ...
  • Lattice thermal conduction in ultra-thin nanocomposites 

    Thomas, IO; Srivastava, GP (AIP publishing, 2016-06-28)
    We have studied the lattice thermal conductivity of Si/Ge periodic nanocomposites (superlattice, nanowire, and nanodot structures) of sample sizes in the range of 30 nm-30 μm, periodicities 1.1 nm and 2.2 nm, with reasonably ...
  • Leaky-wave exploration of two-stage switch-on in a nematic pi-cell 

    Ruan, Lizhen; Sambles, J. Roy (American Institute of Physics, 2005)
    The two-stage switch-on dynamics of a nematic pi-cell are explored in detail using a convergent beam fully-leaky guided mode technique. The cell shows an initial switch-on with a time scale in the range several ms to tens ...
  • Legacy extragalactic UV survey (LEGUS) with the hubble space telescope. I. Survey description 

    Calzetti, D; Lee, JC; Sabbi, E; Adamo, A; Smith, LJ; Andrews, JE; Ubeda, L; Bright, SN; Thilker, D; Aloisi, A; Brown, TM; Chandar, R; Christian, C; Cignoni, M; Clayton, GC; Da Silva, R; De Mink, SE; Dobbs, C; Elmegreen, BG; Elmegreen, DM; Evans, AS; Fumagalli, M; Gallagher, JS; Gouliermis, DA; Grebel, EK; Herrero, A; Hunter, DA; Johnson, KE; Kennicutt, RC; Kim, H; Krumholz, MR; Lennon, D; Levay, K; Martin, C; Nair, P; Nota, A; Östlin, G; Pellerin, A; Prieto, J; Regan, MW; Ryon, JE; Schaerer, D; Schiminovich, D; Tosi, M; Van Dyk, SD; Walterbos, R; Whitmore, BC; Wofford, A (American Astronomical Society, 2015-02-01)
    The American Astronomical Society. All rights reserved. The Legacy ExtraGalactic UV Survey (LEGUS) is a Cycle 21 Treasury program on the Hubble Space Telescope aimed at the investigation of star formation and its relation ...
  • Levinson's theorem and scattering phase-shift contributions to the partition function of interacting gases in two dimensions 

    Portnoi, M.E.; Galbraith, I. (American Physical Society, 1998)
    We consider scattering state contributions to the partition function of a two-dimensional (2D) plasma in addition to the bound-state sum. A partition function continuity requirement is used to provide a statistical mechanical ...
  • Light circulation and weaving in periodically patterned structures 

    Crouse, David; Jaquay, Eric; Maikal, Abdur; Hibbins, Alastair P. (American Physical Society, 2008)
    The circulation and weaving of light in one-dimensionally periodic structures as a result of the excitation of phase resonances are described. It is shown that phase resonances occur for s-polarized incident light with ...
  • Light emission through a corrugated metal film: The role of cross-coupled surface plasmon polaritons 

    Wedge, S.; Hooper, Ian R.; Sage, I.; Barnes, William L. (American Physical Society, 2004)
    We examine the phenomenon of light emission through a thin metal film that takes place via surface plasmon polaritons. Surface plasmon polariton cross coupling has recently been invoked to explain sharp features observed ...
  • Light manipulation principles in biological photonic systems 

    Starkey, T; Vukusic, P (De Gruyter, 2013-09-12)
    © 2013 Science Wise Publishing and DE GRUYTER.The science of light and colour manipulation continues to generate interest across a range of disciplines, from mainstream biology, across multiple physicsbased fields, to ...
  • Light outcoupling efficiency of top-emitting organic light-emitting diodes 

    Smith, L. H.; Wasey, J. A. E.; Barnes, William L. (American Institute of Physics, 2004)
    We report results obtained from modeling the light outcoupling efficiency of top–emitting organic light-emitting diode (OLED) structures and compare them with results from conventional substrate-emitting structures. We ...
  • Limb darkening laws for two exoplanet host stars derived from 3D stellar model atmospheres: Comparison with 1D models and HST light curve observations 

    Hayek, W.; Sing, David K.; Pont, F.; Asplund, M. (EDP Sciences for European Southern Observatory (ESO), 2012)
    We compare limb darkening laws derived from 3D hydrodynamical model atmospheres and 1D hydrostatic MARCS models for the host stars of two well-studied transiting exoplanet systems, the late-type dwarfs HD 209458 and HD ...
  • Line and continuum radiative transfer modelling of AA Tau 

    Esau, Claire F.; Harries, Tim J.; Bouvier, Jerome (Oxford University Press for Royal Astronomical Society, 2014)
    We present photometric and spectroscopic models of the Classical T Tauri star AA Tau. Photometric and spectroscopic variability present in observations of AA Tau is attributed to a magnetically induced warp in the accretion ...
  • Lipkin's conservation law, Noether's theorem, and the relation to optical helicity 

    Philbin, Thomas G. (American Physical Society, 2013)
    A simple conserved quantity for electromagnetic fields in vacuum was discovered by Lipkin in 1964. In recent years this "zilch" has been used as a measure of the chirality of light. The conservation of optical zilch is ...
  • A lithium depletion boundary age of 22 Myr for NGC 1960 

    Jeffries, RD; Naylor, T; Mayne, NJ; Bell, CPM; Littlefair, SP (Oxford University Press (OUP), 2013-08-01)
    We present a deep Cousins RI photometric survey of the open cluster NGC 1960, complete to R_C \simeq 22, I_C \simeq 21, that is used to select a sample of very low-mass cluster candidates. Gemini spectroscopy of a subset ...
  • Localization and field-periodic conductance fluctuations in trilayer graphene 

    El-Bana, MS; Wolverson, D; Horsell, D.W.; Bending, SJ (IOP Publishing, 2014-11-01)
    We have systematically studied quantum transport in a short trilayer-graphene field-effect transistor. Close to the charge neutrality point, our magnetoconductance data are well described by the theory of weak localization ...
  • Localized exciton-polariton modes in dye-doped nanospheres: A quantum approach 

    Gentile, Martin J.; Horsley, S.A.R.; Barnes, William L. (IOP Publishing / European Optical Society, 2015-11-17)
    We model a dye-doped polymeric nanosphere as an ensemble of quantum emitters and use it to investigate the localized exciton-polaritons supported by such a nanosphere. By determining the time evolution of the density matrix ...
  • Localized surface-plasmon resonances in periodic nondiffracting metallic nanoparticle and nanohole arrays 

    Parsons, J.; Hendry, Euan; Burrows, Christopher P.; Auguié, Baptiste; Sambles, J. Roy; Barnes, William L. (American Physical Society, 2009)
    We compare the optical response of periodic nondiffracting metallic nanoparticle and nanohole arrays. Experimental data from both structures show a pronounced minimum in their wavelength-dependent transmittance that, through ...
  • Lomustine Nanoparticles Enable Both Bone Marrow Sparing and High Brain Drug Levels – A Strategy for Brain Cancer Treatments 

    Fisusi, Funmilola A.; Siew, Adeline; Chooi, Kar Wai; Okubanjo, Omotunde; Garrett, Natalie; Lalatsa, Katerina; Serrano, Dolores R.; Summers, I.R.; Moger, Julian; Stapleton, Paul; Satchi-Fainaro, Ronit; Schätzlein, Andreas G.; Uchegbu, Ijeoma F. (American Association of Pharmaceutical Scientists / Springer Verlag, 2016-02-22)
    Purpose The blood brain barrier compromises glioblastoma chemotherapy. However high blood concentrations of lipophilic, alkylating drugs result in brain uptake, but cause myelosuppression. We hypothesised that nanoparticles ...