Now showing items 1-20 of 556

    • Spacetime as a membrane in higher dimensions 

      Gibbons, G.W.; Wiltshire, D.L. (University of Canterbury. Physics and Astronomy, 1987)
      By means of a simple model we investigate the possibility that spacetime is a membrane embedded in higher dimensions. We present cosmological solutions of d-dimensional Einstein-Maxwell theory which compactify to two ...
    • Super p-branes 

      Achúcarro, A.; Evans, J.M.; Townsend, P.K.; Wiltshire, D.L. (University of Canterbury. Physics and Astronomy, 1987)
      It is shown that the extension of the spacetime supersymmetric Green- Schwarz covariant superstring action to p-dimensional extended objects (p-branes) is possible if and only if the on-shell p-dimensional bose and ...
    • Interactions between local winds and coastal sea surface temperatures near the Canterbury coast 

      McKendry, I.G.; Owens, I.F.; Sturman, A.P. (University of Canterbury. Geography, 1988)
      A modelling and observational study was conducted in 1982-83 into the relationships between airflow and sea surface temperature along the Canterbury coast near Banks Peninsula.
    • A preliminary study of the transport of air from Africa and Australia to New Zealand 

      Sturman, A.P.; Tyson, P.D.; D’Abreton, P.C. (University of Canterbury. Geography., 1997)
      Kinematic trajectory modelling is used in a preliminary examination of inter-regional transport of air within the Southern Hemisphere. In particular, the westerly zonal transport of air in the lower troposphere from ...
    • Operator ordering and consistency of the wavefunction of the Universe 

      Kontoleon, N.; Wiltshire, D.L. (University of Canterbury. Physics and Astronomy, 1999)
      We demonstrate in the context of the minisuperspace model consisting of a closed Friedmann-Robertson-Walker universe coupled to a scalar field that Vilenkin’s tunneling wavefunction can only be consistently defined for ...
    • Light variations of the blue hypergiants HD 168607 and HD 168625 (1973-1999) 

      Sterken, C.; Arentoft, T.; Duerbeck, H. W.; Brogt, E. (University of Canterbury. University Centre for Teaching and LearningUniversity of Canterbury. AVC Research Office, 1999)
      Str¨omgren differential photometry of HD168607 and HD168625 collected during the previous 27 years is analysed. We bring to an end our quarter of a century monitoring of these objects and conclude that HD168607 shows ...
    • Atypical presentation of ADHD symptoms in an adolescent confirms need to establish past history of ADHD symptoms 

      Rucklidge, J.J.; Tannock, R. (University of Canterbury. Human Resources., 2000)
    • Wave functions for arbitrary operator ordering in the de Sitter minisuperspace approximation 

      Wiltshire, D.L. (University of Canterbury. Physics and Astronomy, 2000)
      We derive exact series solutions for the Wheeler-DeWitt equation corresponding to a spatially closed Friedmann-Robertson-Walker universe with cosmological constant for arbitrary operator ordering of the scale factor of ...
    • The rise and fall of V4334 Sagittarii (Sakurai's Object) 

      Duerbeck, H. W.; Liller, W.; Sterken, C.; Benetti, S.; van Genderen, A. M.; Arts, J.; Kurk, J. D.; Janson, M.; Voskes, T.; Brogt, E.; Arentoft, T.; van der Meer, A.; Dijkstra, R. (University of Canterbury. University Centre for Teaching and LearningUniversity of Canterbury. AVC Research Office, 2000)
      CCD UBV Ri photometry of the Ðnal helium Ñash object V4334 Sgr (SakuraiÏs object) carried out during 1997È1999 is presented, and the light curve from its prediscovery rise to the dust obscuration phase is constructed. ...
    • An object-based cost of visual filtering 

      Chen, Z. (University of Canterbury. Psychology., 2000)
      Although evidence for object-based attention has been reported in a variety of paradigms, few studies have examined directly the relationship between the processing efficiency of the targets and the number of ...
    • A Lack of Planets in 47 Tucanae from an HST Search 

      Gilliland RL; Brown TM; Guhathakurta P; Sarajedini A; Milone EF; Albrow MD; Baliber NR; Bruntt H; Burrows A; Charbonneau D; Choi P; Cochran WD; Edmonds PD; Frandsen S; Howell JH; Lin DNC; Marcy GW; Mayor M; Naef D; Sigurdsson S; Stagg CR; VandenBerg DA; Vogt SS; Williams MD (2000)
      We report results from a large Hubble Space Telescope project to observe a significant (~34,000) ensemble of main sequence stars in the globular cluster 47 Tucanae with a goal of defining the frequency of inner-orbit, ...
    • Probabilistic Seismic Hazard Assessment of the Canterbury Region, New Zealand 

      Stirling, M.; Pettinga, J.R.; Berryman, K.R.; Yetton, M.D. (University of Canterbury. Geological Sciences, 2001)
    • Properties of cosmologies with dynamical pseudo Nambu-Goldstone bosons 

      Ng, S.C.C.; Wiltshire, D.L. (University of Canterbury. Physics and Astronomy, 2001)
      We study observational constraints on cosmological models with a quintessence field in the form of a dynamical pseudo Nambu–Goldstone boson. After reviewing the properties of the solutions, from a dynamical systems phase ...
    • Psychiatric, psychosocial and cognitive functioning of female adolescents with ADHD 

      Rucklidge, J.J.; Tannock, R. (University of Canterbury. Human Resources., 2001)
      Objective: To characterize the psychiatric, psychosocial and cognitive functioning of adolescent ADHD females in comparison with female controls and ADHD males. Female controls were also compared to male controls to verify ...
    • Future supernova probes of quintessence 

      Ng, S.C.C.; Wiltshire, D.L. (University of Canterbury. Physics and Astronomy, 2001)
      We investigate the potential of a future supernovae data set, as might be obtained by the proposed SNAP satellite, to discriminate between two possible explanations for the observed dimming of the high redshift type IA ...
    • Women’s acceptability of screening for HIV in pregnancy 

      Heckert, K.A.; Bagshaw, S.; Fursman, L.; Kipa, M.; Wilson, M.; Braiden, V.; Ahuriri-Driscoll, A (University of Canterbury. Health Sciences Centre, 2001)
      Aims. To elicit acceptability of HIV screening during pregnancy in women of reproductive age in Christchurch. Methods. In-depth face-to-face interviews were conducted with women of reproductive age recruited from ...
    • A comparative review of the weather and climate of the New Zealand Southern Alps and the European Alps 

      Sturman, A.P.; Wanner, H. (University of Canterbury. Geography, 2001)
      A comparative review is provided of the weather and climate processes and phenomena that characterize the New Zealand Southern Alps and European Alps. The general climate conditions and atmospheric circulation features that ...
    • Earthquake Source Identification and Characterisation for the Canterbury Region, South Island, New Zealand 

      Pettinga, J.R.; Yetton, M.D.; Van Dissen, R.J.; Downes, G. (University of Canterbury. Geological Sciences, 2001)
    • Processing demand modulates the effect of spatial attention on the judged duration of a brief stimulus 

      Chen, Z.; O'Neill, P. (University of Canterbury. Psychology., 2001)
      How does attention influence the judged duration of a brief stimulus? In the four experiments reported here, we show that the effect of spatial attention on duration judgment depended on the processing demand of the ...
    • Neuropsychological Profiles of Adolescents with ADHD: Effects of Reading Difficulties and Gender 

      Rucklidge, J.J.; Tannock, R. (University of Canterbury. Psychology., 2002)
      Background: Executive function, particularly behavioral inhibition has been implicated as a core deficit specific to Attention-Deficit/Hyperactivity Disorder (ADHD) whereas rapid naming has been implicated as a core ...