Now showing items 135-154 of 1292

  • Classification of fracture and non-fracture groups by analysis of coherent X-ray scatter. 

    Dicken, AJ; Evans, JP; Rogers, KD; Stone, N; Greenwood, C; Godber, SX; Clement, JG; Lyburn, ID; Martin, RM; Zioupos, P (Nature Publishing Group, 2016-07-01)
    Osteoporotic fractures present a significant social and economic burden, which is set to rise commensurately with the aging population. Greater understanding of the physicochemical differences between osteoporotic and ...
  • Classification of peacock feather reflectance using principal component analysis similarity factors from multispectral imaging data 

    Medina, JM; Díaz, JA; Vukusic, P (Optical Society of America, 2015-04-20)
    Iridescent structural colors in biology exhibit sophisticated spatially-varying reflectance properties that depend on both the illumination and viewing angles. The classification of such spectral and spatial information ...
  • Clinical applications of infrared and raman spectroscopy: state of play and future challenges 

    Baker, MJ; Byrne, H; Chalmers, JM; Gardner, P; Goodacre, R; Henderson, A; Kazarian, S; Martin, FL; Moger, J; Stone, N (The Royal Society of Chemistry, 2018-02-27)
    Vibrational spectroscopies, based on infrared absorption and/or Raman scattering provide a detailed fingerprint of a material, based on the chemical content. Diagnostic and prognostic tools based on these technologies have ...
  • Clostridium perfringens epsilon toxin H149A mutant as a platform for receptor binding studies 

    Bokori-Brown, Monika; Kokkinidou, Maria C.; Savva, Christos G.; Fernandes da Costa, Sérgio P.; Naylor, Claire E.; Cole, Ambrose R.; Moss, David S.; Basak, Ajit K.; Titball, Richard W. (Wiley, 2013-05)
    Clostridium perfringens epsilon toxin (Etx) is a pore-forming toxin responsible for a severe and rapidly fatal enterotoxemia of ruminants. The toxin is classified as a category B bioterrorism agent by the U.S. Government ...
  • Clostridium perfringens α-toxin interaction with red cells and model membranes. 

    Jewell, Sharon A.; Titball, Richard W.; Huyet, J; Naylor, Claire E.; Basak, Ajit K.; Gologan, Petre; Winlove, C. Peter; Petrov, Peter G. (Royal Society of Chemistry, 2015-08-18)
    The effects of Clostridium perfringens α-toxin on host cells have previously been studied extensively but the biophysical processes associated with toxicity are poorly understood. The work reported here shows that the ...
  • Cloudless atmospheres for L/T dwarfs and extra-solar giant planets 

    Tremblin, Pascal; Amundsen, David S.; Chabrier, G.; Baraffe, I.; Drummond, B.; Hinkley, Sasha; Mourier, P.; Venot, O. (American Astronomical Society, 2016-01-28)
    The admitted, conventional scenario to explain the complex spectral evolution of brown dwarfs (BD) since their first detections twenty years ago, has always been the key role played by micron-size condensates, called "dust" ...
  • Cloudless atmospheres for young low-gravity substellar objects 

    Tremblin, P; Chabrier, G; Baraffe, I; Liu, MC; Magnier, EA; Lagage, P-O; Oliveira, CAD; Burgasser, AJ; Amundsen, DS; Drummond, B (American Astronomical Society / IOP Publishing, 2017-11-15)
    Atmospheric modeling of low-gravity (VL-G) young brown dwarfs remains a challenge. The presence of very thick clouds has been suggested because of their extremely red near-infrared (NIR) spectra, but no cloud models provide ...
  • CO abundance variations in the Orion molecular cloud 

    Ripple, F; Heyer, MH; Gutermuth, R; Snell, RL; Brunt, CM (Oxford University Press, 2013-03-19)
    Infrared stellar photometry from the Two Micron All-Sky Survey (2MASS) and spectral line imaging observations of 12CO and 13CO J = 1-0 line emission from the Five College Radio Astronomy Observatory (FCRAO) 14-m telescope ...
  • Co-phasing the Planet Formation Imager 

    Petrov, RG; Boskri, A; Elhalkouj, T; Monnier, J; Ireland, M; Kraus, S (Society of Photo-optical Instrumentation Engineers (SPIE), 2016-08-04)
    The Planet Formation Imager (PFI) is a project for a very large optical interferometer intended to obtain images of the planet formation process at scales as small as the Hill sphere of giant exoplanets. Its main science ...
  • Coacervation of α-elastin studied by ultrafast nonlinear infrared spectroscopy 

    Ragnoni, E; Palombo, F; Green, E; Winlove, C. Peter; Di Donato, M; Lapini, A (Royal Society of Chemistry, 2016-09-21)
    Elastin is the main protein to confer elasticity to biological tissues, through the formation of a hierarchical network of fibres. α-Elastin, a soluble form of the protein, is widely used in studies of the biosynthesis of ...
  • Coexisting Nematic and Smectic- A Phases in a Twisted Liquid-Crystal Cell 

    Ruan, Lizhen; Osipov, M. A.; Sambles, J. Roy (American Physical Society, 2001)
    Twisted homogeneously planar-aligned nematic liquid-crystal cells are cooled into the smectic- A phase. The expected defective structure does not form. Instead the cells still show good optical-guiding characteristics. ...
  • Coherence and measurement in quantum thermodynamics 

    Anders, Janet (Nature Publishing Group, 2016-02-26)
    Thermodynamics is a highly successful macroscopic theory widely used across the natural sciences and for the construction of everyday devices, from car engines to solar cells. With thermodynamics predating quantum theory, ...
  • Coherent nonlinear optical response of graphene 

    Hendry, Euan; Hale, Peter J.; Moger, Julian; Savchenko, A.K.; Mikhailov, S.A. (American Physical Society, 2010)
    We investigate the nonlinear optical properties of graphene flakes using four-wave mixing. The corresponding third-order optical susceptibility is found to be remarkably large and only weakly dependent on the wavelength ...
  • Coherent particle transfer in an on-demand single-electron source 

    Keeling, J.; Shytov, A.V.; Levitov, L.S. (American Physical Society, 2008)
    Electron transfer from a localized state in a quantum dot into a ballistic conductor generally results in particle-hole excitations. We study this effect, considering a resonance level with time-dependent energy coupled ...
  • Coherent phonon modes of crystalline and amorphous Ge2Sb2Te5 thin films: A fingerprint of structure and bonding 

    Shalini, Ashawaraya; Liu, Y.; Katmis, F.; Braun, W.; Srivastava, G.P.; Hicken, R.J. (American Institute of Physics (AIP), 2015)
    Femtosecond optical pump-probe measurements have been made upon epitaxial, polycrystalline, and amorphous thin films of Ge2Sb2Te5 (GST). A dominant coherent optical phonon mode of 3.4 THz frequency is observed in time-resolved ...
  • Collagen fiber arrangement in normal and diseased cartilage studied by polarization sensitive nonlinear microscopy 

    Mansfield, Jessica; Winlove, C. Peter; Moger, Julian; Matcher, Steve J. (Society of Photo-optical Instrumentation Engineers (SPIE), 2008)
    Second harmonic generation (SHG) and two-photon fluorescence (TPF) microscopy is used to image the intercellular and pericellular matrix in normal and degenerate equine articular cartilage. The polarization sensitivity of ...
  • The collapse of a molecular cloud core to stellar densities using radiation non-ideal magnetohydrodynamics (article) 

    Wurster, JH; Bate, MR; Price, DJ (Oxford University Press, 2018-01-05)
    We present results from radiation non-ideal magnetohydrodynamics (MHD) calculations that follow the collapse of rotating, magnetized, molecular cloud cores to stellar densities. These are the first such calculations to ...
  • The collapse of a molecular cloud core to stellar densities using radiation non-ideal magnetohydrodynamics (dataset) 

    Wurster, James; Bate, Matthew; Price, Daniel J (University of Exeter, 2018-04-19)
    We present results from radiation non-ideal magnetohydrodynamics (MHD) calculations that follow the collapse of rotating, magnetized, molecular cloud cores to stellar densities. These are the first such calculations to ...
  • Collapse of a molecular cloud core to stellar densities: stellar-core and outflow formation in radiation magnetohydrodynamic simulations 

    Bate, Matthew R.; Tricco, Terrence S.; Price, Daniel J. (Oxford University Press, 2013-11-07)
    We have performed smoothed particle radiation magnetohydrodynamic simulations of the collapse of rotating, magnetized molecular cloud cores to form protostars. The calculations follow the formation and evolution of the ...
  • Collective resonances in gold nanoparticle arrays 

    Auguié, Baptiste; Barnes, William L. (American Physical Society, 2008)
    We present experimental evidence of sharp spectral features in the optical response of 2D arrays of gold nanorods. A simple coupled dipole model is used to describe the main features of the observed spectral line shape. ...