title: New currents in the mainstream: The 1990s

authors: Hardy, Ann

abstract: In the 1990s, with the emergence of a new generation of film makers, the New Zealand film industry displayed a new maturity and gained increasing recognition internationally as a fresh, lively source of English language films.

text: New currents in the mainstream: The 1990s In the 1990s, with the emergence of a new generation of film makers, the New Zealand film industry displayed a new maturity and gained increasing recognition internationally as a fresh, lively source of English language films.

year: 2011

title: Implantable electrode structures and their RF effects in MRI machines

authors: McCabe, Steven Owen

subjects: Deep Brain Stimulator (DBS)

abstract: Medical implants incorporating long insulated conductors can generate a serious heating hazard to a patient undergoing a Magnetic Resonance Imaging (MRI) scan. Under the high-power RF field from an MRI machine, the conductors can behave as antennas and concentrate energy into small regions of body tissue, leading to excessive joule heating. Neurostimulator implants that employ long electrode leads such as those for Deep Brain Stimulation (DBS) and Spinal Cord Stimulation (SCS), are highly susceptible to this RF hazard. Patients with these implants are generally contraindicated from MRI.

This thesis examines the heating phenomenon and identifies a variety of methods to mitigate the hazard and gain implant leads MRI safety. Techniques such as thin insulation, surface roughening, and auxiliary decoy filars are explored, with the latter shown to be especially effective at providing safety. Designs are first modelled with electromagnetic simulation software then experimentally proven inside of a gelled saline phantom within a 3T MRI machine. A lab-based measurement method is also established to enable rapid low-cost testing of prototype lead designs.

text: Implantable electrode structures and their RF effects in MRI machines Medical implants incorporating long insulated conductors can generate a serious heating hazard to a patient undergoing a Magnetic Resonance Imaging (MRI) scan. Under the high-power RF field from an MRI machine, the conductors can behave as antennas and concentrate energy into small regions of body tissue, leading to excessive joule heating. Neurostimulator implants that employ long electrode leads such as those for Deep Brain Stimulation (DBS) and Spinal Cord Stimulation (SCS), are highly susceptible to this RF hazard. Patients with these implants are generally contraindicated from MRI.

This thesis examines the heating phenomenon and identifies a variety of methods to mitigate the hazard and gain implant leads MRI safety. Techniques such as thin insulation, surface roughening, and auxiliary decoy filars are explored, with the latter shown to be especially effective at providing safety. Designs are first modelled with electromagnetic simulation software then experimentally proven inside of a gelled saline phantom within a 3T MRI machine. A lab-based measurement method is also established to enable rapid low-cost testing of prototype lead designs.

year: 2019

title: The rhetorical organization of discourse: language revitalisation and the question of authenticity

authors: Crombie, Winifred

subjects: Te reo Māori

abstract: We propose here one approach to unravelling some aspects of authentic discourse construction in a way that may prove useful to teachers and learners of Māori. The approach is illustrated in relation to one text which realises the argument genre in Māori. In terms of text-type, the example provided is an open letter of advice/warning. The approach illustrated here, and the hypotheses emerging from it, are currently being further tested by one of the authors with reference to a corpus of written texts.

text: The rhetorical organization of discourse: language revitalisation and the question of authenticity We propose here one approach to unravelling some aspects of authentic discourse construction in a way that may prove useful to teachers and learners of Māori. The approach is illustrated in relation to one text which realises the argument genre in Māori. In terms of text-type, the example provided is an open letter of advice/warning. The approach illustrated here, and the hypotheses emerging from it, are currently being further tested by one of the authors with reference to a corpus of written texts.

year: 2000-11-24