Now showing items 1-20 of 610

    • Auditory-evoked brainstem responses in the hibernating woodchuck Marmota monax 

      Katbamna, Bharti; Thodi, Chryssoula D.; Senturia, Jerome B.; Metz, David A. (1992-01-01)
      1. 1. This study measured the changes in the auditory-evoked brainstem responses in the woodchuck (Marmota monax) during hibernation and arousal. 2. 2. The auditory brainstem response of the euthermic woodchuck consisted ...
    • Brief Communication Binaural Interaction in the Auditory Brainstem Response: Multichannel Recordings 

      Thodi, Chryssoula D.; Katbamna, Bharti (1993-01-01)
      Binaural interaction in the auditory brainstem response: Multichannel recordings. Thodi, C. and Katbamna, B. (Department of Speech and Hearing, Cleveland State University, Cleveland, OH 44115, USA). Scand Audiol 1993; 22: ...
    • Polarimetry and modelling of narrow-line active galaxies 

      Young, Stuart; James H. Hough, James; Efstathiou, Andreas; Wills, Beverley J.; Bailey, Jeremy A.; Ward, Martin J.; Axon, David J. (1996-01-01)
      We present optical spectropolarimetry along with optical and infrared broad-band filter polarimetry of selected warm [f(25 μm)/f(60 μm) ≥ 0.3] IRAS galaxies and other known Seyfert 2 galaxies. Broad lines in polarized flux ...
    • Scattered broad optical lines in the polarized flux spectrum of the FR II galaxy 3C 321 

      Young, Stuart; James H. Hough, James; Efstathiou, Andreas; Wills, Beverley J.; Axon, David J.; Bailey, Jeremy A.; Ward, Martin J. (1996-01-01)
      We present optical/infrared broad-band filter polarimetry and optical spectropolarimetry of the powerful FR II galaxy 3C 321. The latter observations reveal a scattered broad component to the Hα emission line, detectable ...
    • The nuclear torus in the active galaxy NGC 1068 

      Young, Stuart; Packham, Christopher C.; James H. Hough, James; Efstathiou, Andreas (1996-01-01)
      We present near-infrared polarized images of the active galaxy NGC 1068. At these wavelengths, the counter-cone is observed in scattered light. At H (1.64 μm) we detect an absorption band across the counter-cone, which we ...
    • Dusty discs in AGN 

      Efstathiou, Andreas (1996-01-01)
      A modified version of the code of Efstathiou and Rowan-Robinson (1990), that solves accurately the axially symmetric radiative transfer problem in dust clouds, is used to model the infrared emission from dust in Active ...
    • Polarimetry and the torus 

      James H. Hough, James; Young, Stuart; Efstathiou, Andreas (1996-01-01)
      While the torus plays an obvious role in blocking direct light, and thus increasing the observed polarization from scattering, its role in directly producing polarized flux is less clear. Contributions to the infrared ...
    • Auditory-evoked brainstem responses in the torpid deermouse 

      Katbamna, Bharti; Thodi, Chryssoula D.; Senturia, Jerome B. (1996-01-01)
      This study examined auditory-evoked brainstem responses (ABR) in the deermouse (Peromyscus maniculatus) during torpor and arousal. The ABR of the euthermic deermouse consisted of five waves occurring in a time frame of 10 ...
    • Observations of the Hubble Deep Field with the Infrared Space Observatory - II. Source detection and photometry 

      Goldschmidt, Pippa; Oliver, Sebastian James; Serjeant, Stephen B.G.; Baker, Amanda C.; Eaton, Nick; Efstathiou, Andreas; Gruppioni, Carlotta; Robert Mann, Robert; Mobasher, Bahram; Rowan-Robinson, Michael; Sumner, Timothy J.; Danese, Luigi; Elbaz, David; Franceschini, Alberto; Egami, Eiichi; Kontizas, Maria; Andy R. Lawrence, Andy; McMahon, R. G.; Nørgaard-Nielsen, Hans Ulrik; Pérez-Fournón, Ismaël; González-Serrano, José Ignacio (1997-01-01)
      We present positions and fluxes of point sources found in the Infrared Space Observatory (ISO) images of the Hubble Deep Field (HDF) at 6.7 and 15 μm. We have constructed algorithmically selected 'complete' flux-limited ...
    • Observations of the Hubble Deep Field with the Infrared Space Observatory - IV. Association of sources with Hubble Deep Field galaxies 

      Robert Mann, Robert; Oliver, Sebastian James; Serjeant, Stephen B.G.; Rowan-Robinson, Michael; Baker, Amanda C.; Eaton, Nick; Efstathiou, Andreas; Goldschmidt, Pippa; Mobasher, Bahram; Sumner, Timothy J.; Danese, Luigi; Elbaz, David; Franceschini, Alberto; Egami, Eiichi; Kontizas, Maria; Andy R. Lawrence, Andy; McMahon, R. G.; Nørgaard-Nielsen, Hans Ulrik; Pérez-Fournón, Ismaël; González-Serrano, José Ignacio (1997-01-01)
      We discuss the identification of sources detected by the Infrared Space Observatory (ISO) at 6.7 and 15 μm in the Hubble Deep Field (HDF) region. We conservatively associate ISO sources with objects in existing optical and ...
    • Observations of the Hubble Deep Field with the Infrared Space Observatory - I. Data reduction, maps and sky coverage 

      Serjeant, Stephen B.G.; Eaton, Nick; Oliver, Sebastian James; Efstathiou, Andreas; Goldschmidt, Pippa; Robert Mann, Robert; Mobasher, Bahram; Rowan-Robinson, Michael; Sumner, Timothy J.; Danese, Luigi; Elbaz, David; Franceschini, Alberto; Egami, Eiichi; Kontizas, Maria; Andy R. Lawrence, Andy; McMahon, R. G.; Nørgaard-Nielsen, Hans Ulrik; Pérez-Fournón, Ismaël; González-Serrano, José Ignacio (1997-01-01)
      We present deep imaging at 6.7 and 15 μm from the CAM instrument on the Infrared Space Observatory (ISO), centred on the Hubble Deep Field (HDF). These are the deepest integrations published to date at these wavelengths ...
    • Polarization due to dichroic absorption and emission by aligned grains in dusty discs 

      Efstathiou, Andreas; McCall, Alan; James H. Hough, James (1997-01-01)
      We present a method for calculating the infrared polarization due to absorption and emission by aligned grains distributed in a disc or a torus. The temperature distribution in the torus is calculated with the axially ...
    • Observations of the Hubble Deep Field with the Infrared Space Observatory - V. Spectral energy distributions, starburst models and star formation history 

      Rowan-Robinson, Michael; Robert Mann, Robert; Oliver, Sebastian James; Efstathiou, Andreas; Eaton, Nick; Goldschmidt, Pippa; Mobasher, Bahram; Serjeant, Stephen B.G.; Sumner, Timothy J.; Danese, Luigi; Elbaz, David; Franceschini, Alberto; Egami, Eiichi; Kontizas, Maria; Andy R. Lawrence, Andy; McMahon, R. G.; Nørgaard-Nielsen, Hans Ulrik; Pérez-Fournón, Ismaël; González-Serrano, José Ignacio (1997-01-01)
      We have modelled the spectral energy distributions of the 13 Hubble Deep Field (HDF) galaxies reliably detected by the Infrared Space Observatoiy (ISO). For two galaxies the emission detected by ISO is consistent with being ...
    • Observations of the Hubble Deep Field with the Infrared Space Observatory - III. Source counts and P(D) analysis 

      Oliver, Sebastian James; Goldschmidt, Pippa; Franceschini, Alberto; Serjeant, Stephen B.G.; Efstathiou, Andreas; Verma, Aprajita; Gruppioni, Carlotta; Eaton, Nick; Robert Mann, Robert; Mobasher, Bahram; Pearson, Chris P.; Rowan-Robinson, Michael; Sumner, Timothy J.; Danese, Luigi; Elbaz, David; Egami, Eiichi; Kontizas, Maria; Andy R. Lawrence, Andy; McMahon, R. G.; Nørgaard-Nielsen, Hans Ulrik; Pérez-Fournón, Ismaël; González-Serrano, José Ignacio (1997-01-01)
      We present source counts at 6.7 and 15 μm from our maps of the Hubble Deep Field (HDF) region, reaching 38.6 μJy at 6.7 μm and 255 μJy at 15 μm. These are the first ever extragalactic number counts to be presented at 6.7 ...
    • The formation of an inclusion complex of methocarbamol with hydroxypropyl-β-cyclodextrin: The effect on chemical stability, solubility and dissolution rate 

      Antoniadou -Vyza, Ekaterini A.; Buckton, Graham; Michaleas, Sotiris G.; Loukas, Yannis L.; Efentakis, Manuel (1997-12-08)
      The inclusion complex of the hydrophobic drug methocarbamol (ML) with hydroxypropyl-β-cyclodextrin (HPβCB) was prepared and characterized in the solid state and in aqueous solution. The prepared complex was studied by ...
    • High-redshift star formation in the Hubble Deep Field revealed by a submillimetre-wavelength survey 

      Hughes, David Handel; Serjeant, Stephen B.G.; James S. Dunlop, James; Rowan-Robinson, Michael; Blain, Andrew W.; Robert Mann, Robert; Ivison, Robert J.; Peacock, John A.; Efstathiou, Andreas; Gear, Walter K.P.; Oliver, Sebastian James; Andy R. Lawrence, Andy; Longair, Malcolm S.; Goldschmidt, Pippa; Jenness, Tim (1998-07-16)
      In the local Universe, most galaxies are dominated by stars, with less than ten per cent of their visible mass in the form of gas. Determining when most of these stars formed is one of the central issues of observational ...
    • The ISOPHOT far-infrared serendipity north ecliptic pole minisurvey 

      Stickel, Manfred; Bogun, Stefan; Lemke, Dietrich; Klaas, Ulrich; Toth, L. Viktor; Herbstmeier, Uwe; Richter, Gotthard M.; Assendorp, Rob; Laureijs, René J.; Kessler, Martin F.; Burgdorf, Martin J.; Beichman, Charles A.; Rowan-Robinson, Michael; Efstathiou, Andreas (1998-08-01)
      The ISOPHOT Serendipity Survey fills the otherwise unused slew time between ISO's fine pointings with measurements in an unexplored wavelength regime near 200 μm. In order to test point source extraction software, the ...
    • A valid HPLC method for monitoring the hydrolytic degradation of methocarbamol in the presence of various cyclodextrins detection of a new degradation product 

      Michaleas, Sotiris G.; Antoniadou -Vyza, Ekaterini A. (1998-12-01)
      β-Cyclodextrins (CD) are naturally occurring cyclic oligosaccharides composed of seven D-glucose units linked head to tail with α, 1-4 linkages. They form a relatively inflexible structure in which the outside of the ring ...
    • Random and deterministic perturbation of a class of skew-product systems 

      Broomhead, David S.; Hadjiloucas, Demetris; Nicol, Matthew J. (1999-01-01)
      This paper is concerned with the stability properties of skew-products T (x, y) = (f(x), g(x, y)) in which (f, X, μ) is an ergodic map of a compact metric space X and g: X x ℝn → ℝn is continuous. We assume that the ...
    • Supramolecular interactions between tolfenamic acid and various cyclodextrins: Effects of complexation on physicochemical and spectroscopic data 

      Rozou, Stavroula; Michaleas, Sotiris G.; Antoniadou -Vyza, Ekaterini A. (1999-01-01)
      Tolfenamic acid is a non-steroidal inflammatory drug with associated gastrointestinal side-effects and problems with bioavailability. Furthermore, it is extremely insoluble in water. Tolfenamic acid was complexed with ...