Browsing University of Hertfordshire by Title

Now showing items 12820-12839 of 24062

    • Like Me? - Measures of Correspondence and Imitation 

      Nehaniv, C.L.; Dautenhahn, K. (2001)
      Imitation is a powerful mechanism for efficient learning of novel behaviors that both supports and takes advantage of sociality. A fundamental problem for imitation is to create an appropriate (partial) mapping between the ...

    • The likelihood ratio as a tool for radio continuum surveys with Square Kilometre Array precursor telescopes 

      McAlpine, Kim; Smith, Daniel; Jarvis, M.J.; bonfield, David; Fleuren, Simone (2012)
      In this paper we investigate the performance of the likelihood ratio method as a tool for identifying optical and infrared counterparts to proposed radio continuum surveys with SKA precursor and pathfinder telescopes. We ...

    • A limit on the variation of the speed of light arising from quantum gravity effects 

      Abdo, A.A.; Ackermann, M.; Ajello, M.; Asano, K.; Atwood, W.B.; Axelsson, M.; Baldini, L.; Ballet, J.; Barbiellini, G.; Baring, M. G.; Bastieri, D.; Bechtol, K.; Bellazzini, R.; Berenji, B.; Bhat, P.N.; Bissaldi, E.; Bloom, E. D.; Bonamente, E.; Bonnell, J.; Borgland, A.W.; Bouvier, A.; Bregeon, J.; Brez, A.; Briggs, M.S.; Brigida, M.; Bruel, P.; Burgess, J. M.; Burnett, T. H.; Caliandro, G.A.; Cameron, R.A.; Caraveo, P.A.; Casandjian, J.M.; Cecchi, C.; Celik, Oe; Chaplin, V.; Charles, E.; Cheung, C. C.; Chiang, J.; Ciprini, S.; Claus, R.; Cohen-Tanugi, J.; Cominsky, L. R.; Connaughton, V.; Conrad, J.; Cutini, S.; Dermer, C. D.; de Angelis, A.; de Palma, F.; Digel, S.W.; Dingus, B. L.; do couto silva, E.; Drell, P.S.; Dubois, R.; Dumora, D.; Farnier, C.; Favuzzi, C.; Fegan, S. J.; Finke, J.; Fishman, G.; Focke, W.B.; Foschini, L.; Fukazawa, Y.; Funk, S.; Fusco, P.; Gargano, F.; Gasparrini, D.; Gehrels, N.; Germani, S.; Gibby, L.; Giebels, B.; Giglietto, N.; Giordano, F.; Glanzman, T.; Godfrey, G.; Granot, J.; Greiner, J.; Grenier, I.A.; Grondin, M. -H.; Grove, J. E.; Grupe, D.; Guillemot, L.; Guiriec, S.; Hanabata, Y.; Harding, A. K.; Hayashida, M.; Hays, E.; Hoversten, E. A.; Hughes, R.E.; Johannesson, G.; Johnson, A.S.; Johnson, R. P.; Johnson, W. N.; Kamae, T.; Katagiri, H.; Kataoka, J.; Kawai, N.; Kerr, M.; Kippen, R.M.; Knoedlseder, J.; Kocevski, D.; Kouveliotou, C.; Kuehn, F.; Kuss, M.; Lande, J.; Latronico, L.; Lemoine-Goumard, M.; Longo, F.; Loparco, F.; Lott, B.; Lovellette, M. N.; Lubrano, P.; Madejski, G. M.; Makeev, A.; Mazziotta, M.N.; McBreen, S.; McEnery, J.E.; McGlynn, S.; Meszaros, P.; Meurer, C.; Michelson, P.F.; Mitthumsiri, W.; Mizuno, T.; Moiseev, A.A.; Monte, C.; Monzani, M.E.; Moretti, E.; Morselli, A.; Moskalenko, I.V.; Murgia, S.; Nakamori, T.; Nolan, P.L.; Norris, J.P.; Nuss, E.; Ohno, M.; Ohsugi, T.; Omodei, N.; Orlando, E.; Ormes, J. F.; Ozaki, M.; Paciesas, W. S.; Paneque, D.; Panetta, J. H.; Parent, D.; Pelassa, V.; Pepe, M.; Pesce-Rollins, M.; Petrosian, V.; Piron, F.; Porter, T.A.; Preece, R.; Raino, S.; Ramirez-Ruiz, E.; Rando, R.; Razzano, M.; Razzaque, S.; Reimer, A.; Reimer, O.; Reposeur, T.; Ritz, S.; Rochester, L. S.; Rodriguez, A. Y.; Roth, M.; Ryde, F.; Sadrozinski, H.F.W.; Sanchez, D.; Sander, A.; Parkinson, P. M. Saz; Scargle, J. D.; Schalk, T. L.; Sgro, C.; Siskind, E.J.; Smith, D. A.; Smith, P.D.; Spandre, G.; Spinelli, P.; Stamatikos, M.; Stecker, F. W.; Strickman, M.S.; Suson, D. J.; Tajima, H.; Takahashi, H.; Takahashi, T.; Tanaka, T.; Thayer, J. B.; Thayer, J.G.; Thompson, D.J.; Tibaldo, L.; Toma, K.; Torres, D.F.; Tosti, G.; Troja, E.; Uchiyama, Y.; Uehara, T.; Usher, T.L.; van der Horst, A. J.; Vasileiou, V.; Vilchez, N.; Vitale, V.; von Kienlin, A.; Waite, A.P.; Wang, P.; Wilson-Hodge, C.; Winer, B.L.; Wood, K.S.; Wu, X. F.; Yamazaki, R.; Ylinen, T.; Ziegler, M. (2009-11-19)
      A cornerstone of Einstein's special relativity is Lorentz invariance-the postulate that all observers measure exactly the same speed of light in vacuum, independent of photon-energy. While special relativity assumes that ...

    • Limited engagements and narrative extensions 

      Hutto, D. (2008)
      E-approaches to the mind stress the embodied, embedded and enactive nature of mental phenomena. In their more radical, non-representational variants these approaches offer innovative and powerful new ways of understanding ...

    • The limited role of galaxy mergers in driving stellar mass growth over cosmic time 

      Martin, G.; Kaviraj, S.; Devriendt, J.E.G.; Dubois, Y.; Laigle, C.; Pichon, C. (2017-11-21)
      A key unresolved question is the role that galaxy mergers play in driving stellar mass growth over cosmic time. Recent observational work hints at the possibility that the overall contribution of `major' mergers (mass ...

    • The limits of law in the protection of public health and the role of public health ethics 

      Martin, R. (2006)

    • Limits of noise and confusion in the MWA GLEAM year 1 survey 

      Franzen, T. M. O.; Jackson, C. A.; Callingham, J. R.; Ekers, R. D.; Hancock, P. J.; Hurley-Walker, N.; Morgan, J.; Seymour, N.; Wayth, R. B.; White, S. V.; Bell, M. E.; Dwarakanath, K. S.; For, B.; Gaensler, B. M.; Hindson, L.; Johnston-Hollitt, M.; Kapinska, A. D.; Lenc, E.; McKinley, B.; Offringa, A. R.; Procopio, P.; Staveley-Smith, L.; Wu, C.; Zheng, Q. (2015-10-20)
      The GaLactic and Extragalactic All-sky MWA survey (GLEAM) is a new relatively low resolution, contiguous 72-231 MHz survey of the entire sky south of declination +25 deg. In this paper, we outline one approach to determine ...

    • The limits of spectatorial folk psychology 

      Hutto, D. (2004)

    • The limits of understanding and the understanding of limits : David Hume’s mathematical sources 

      Larvor, Brendan (Springer Nature, 2023-05-12)
      David Hume devoted a long section of his Treatise of Human Nature to an attempt to refute the indivisibility of space and time. In his later Enquiry Concerning Human Understanding, he ridiculed the doctrine of infinitesimals ...

    • Limits on radioactive powered emission associated with a short-hard GRB 070724A in a star-forming galaxy 

      Kocevski, Daniel; Thone, Christina C.; Ramirez-Ruiz, Enrico; Bloom, Joshua S.; Granot, Jonathan; Butler, Nathaniel R.; Perley, Daniel A.; Modjaz, Maryam; Lee, William H.; Cobb, Bethany E.; Levan, Andrew J.; Tanvir, Nial; Covino, Stefano (2010-05-11)
      We present results of an extensive observing campaign of the short-duration, hard spectrum gamma-ray burst (GRB) 070724A, aimed at detecting the radioactively powered emission that might follow from a binary merger or ...

    • Limits on Reddening and Gas-to-Dust Ratios for Seven Intermediate Redshift Damped Ly-alpha Absorbers from Diffuse Interstellar Bands 

      Lawton, B.; Churchill, C.W.; York, B.A.; Ellison, S.L.; Snow, T.P.; Johnson, R.; Ryan, Sean G.; Benn, C. (2008)

    • Limits on the 2.2- m contrast ratio of the close-orbiting planet HD 189733b 

      Barnes, J.R.; Barman, T.S.; Prato, L.; Segransan, D.; Jones, H.R.A.; Leigh, C.J.; Collier Cameron, A.; Pinfield, D.J. (2007)

    • Limits on the mass of the Central Black Hole in sixteen nearby bulges 

      Sarzi, M.; Rix, H-W.; Shields, J.C.; McIntosh, D.; Ho, L.; Rudnick, G.; Filippenko, A.; Sargent, W.; Barth, A. (2002)

    • Limits to competition and regulation in privatized electricity markets 

      Dagdeviren, Hulya (2009)
      Privatization of electricity has been extensive both in the developed and the developing world. Failures in various areas have led to the emergence of a new consensus which regards competitive pressures and regulation as ...

    • The limits to participatory planning : A reply to Adaman and Devine 

      Hodgson, G.M. (2005)
      Fikret Adaman and Pat Devine (2001) responded to an article in which I criticized proposals by socialists to give markets marginal role (Hodgson, 1998). This present essay continues the debate, raises some additional issues ...

    • Line-driven disc wind models with an improved line force 

      Proga, D.; Stone, J.M.; Drew, J.E. (1999)
      We describe an efficient method of calculating the radiation pressure due to spectral lines, including all the terms in the velocity gradient tensor. We apply this method to calculate the two-dimensional, time-dependent ...

    • The line-of-sight towards GRB 030429 at z =2.66: Probing the matter at stellar, galactic and intergalactic scales 

      Jakobsson, P.; Hjorth, J.; Fynbo, J.; Weidinger, M.; Gorosabel, J.; Ledoux, C.; Watson, D.; Bjornsson, G.; Gudmundsson, E.H.; Wijers, R.A.M.J.; Moller, P.; Pedersen, K.; Sollerman, J.; Henden, A.A.; Jensen, B.L.; Gilmore, A.; Levan, A.; Castro Ceron, J.M.; Castro-Tirado, A.J.; Fruchter, A.S.; Kouveliotou, C.; Masetti, N.; Tanvir, N. (2004-12)

    • Linear analysis of genetic algorithms 

      Schmitt, L.M.; Nehaniv, C.L.; Fujii, R.H. (1998)
      We represent simple and fitness-scaled genetic algorithms by Markov chains on probability distributions over the set of all possible populations of a fixed finite size. Analysis of this formulation yields new insight into ...

    • The linear bias of radio galaxies at z~0.3 via cosmic microwave background lensing 

      Devereux, C.; Geach, J. E.; Hardcastle, M. J. (2019-02-26)
      We present a new measurement of the linear bias of radio loud active galactic nuclei (RLAGN) at $z\approx0.3$ and $L_{\rm 1.4GHz}>10^{23}\,{\rm W\,Hz^{-1}}$ selected from the Best & Heckman (2012) sample, made by ...

    • Linear Line Polarimetry Modelling of Pre-main Sequence Stars 

      Vink, J.S.; Drew, J.E.; Harries, T.J.; Oudmaijer, R.D. (Astronomical Society of the Pacific, 2005)
      We present emission line polarimetry data and modelling relevant to the circumstellar geometry and kinematics around pre-main sequence stars. For a sample of both Herbig Ae/Be stars and T Tauri stars, we find that most ...