title: Threshold cointegration and the short-run dynamics of twin deficit behaviour

authors: Holmes, Mark J.

subjects: current account balance

abstract: This paper examines the relationship between the current account and budget balances by means of a threshold cointegration approach advocated by Hansen and Seo (2002). Using US data covering 1947–2009, a long-run positive cointegrating relationship is confirmed. This supports the notion of a Keynesian twin deficits relationship. The short-run dynamics are investigated through an estimated threshold vector error correction model. Depending on the regime present, it is either the external or internal balance that is responsible for error correction. This has important implications for the use of fiscal policy to control the external balance.

text: Threshold cointegration and the short-run dynamics of twin deficit behaviour This paper examines the relationship between the current account and budget balances by means of a threshold cointegration approach advocated by Hansen and Seo (2002). Using US data covering 1947–2009, a long-run positive cointegrating relationship is confirmed. This supports the notion of a Keynesian twin deficits relationship. The short-run dynamics are investigated through an estimated threshold vector error correction model. Depending on the regime present, it is either the external or internal balance that is responsible for error correction. This has important implications for the use of fiscal policy to control the external balance.

year: 2010

title: Technique to assess the compatibility of medical implants to the RF Field in MRI

authors: McCabe, Steven Owen

subjects: Magnetic resonance imaging

abstract: The standard technique for determining the compatibility of medical implants to the magnetic and RF fields present in Magnetic Resonance Imaging (MRI), requires access to an MRI machine. For implants comprising metals of mostly the non-ferrous kind, it is only the RF field of an MRI machine that is of concern. Implant electrodes can concentrate the RF field in the surrounding tissue and give rise to joule heating. The inherent design of Spinal Cord Stimulators (SCS) and Deep Brain Stimulators (DBS) makes these implants particularly susceptible to hazardous levels of RF heating. We propose a technique that offers a quick and indicative assessment of the compatibility of implant leads to the RF field in 3-Tesla MRI, without needing access to an MRI machine. A dipole antenna, driven by a power amplifier and Continuous Wave (CW), injects RF energy into a gelled saline phantom. The heating in the gel near a test implant electrode is monitored with a fiber optic thermometer. The results are calibrated against measurements made in a 3-Tesla MRI machine.

text: Technique to assess the compatibility of medical implants to the RF Field in MRI The standard technique for determining the compatibility of medical implants to the magnetic and RF fields present in Magnetic Resonance Imaging (MRI), requires access to an MRI machine. For implants comprising metals of mostly the non-ferrous kind, it is only the RF field of an MRI machine that is of concern. Implant electrodes can concentrate the RF field in the surrounding tissue and give rise to joule heating. The inherent design of Spinal Cord Stimulators (SCS) and Deep Brain Stimulators (DBS) makes these implants particularly susceptible to hazardous levels of RF heating. We propose a technique that offers a quick and indicative assessment of the compatibility of implant leads to the RF field in 3-Tesla MRI, without needing access to an MRI machine. A dipole antenna, driven by a power amplifier and Continuous Wave (CW), injects RF energy into a gelled saline phantom. The heating in the gel near a test implant electrode is monitored with a fiber optic thermometer. The results are calibrated against measurements made in a 3-Tesla MRI machine.

year: 2015

title: The Development and Evaluation of a Cultural Competency Training Programme for Psychologists Working with Māori: A Training Needs Analysis

authors: Waitoki, Waikaremoana

subjects: Māori

abstract: The purpose of this study was to develop and evaluate a cultural competency training programme for clinical psychology students to work with Māori consumers.  A pilot programme (study 1) was developed from the international and national cultural competency and bicultural training literature.  Following the pilot, it was identified that the programme could be made more robust by conducting a second study the training needs analysis using the critical incident technique.  Study two was conducted with 30 experienced clinical psychologists who had worked with Māori clients.
  
The training needs analysis sought to identify the awareness, knowledge and skills (AKS) that the experienced psychologists used in their practice with Māori.  An unexpected finding from study two was that the psychologists used distinctly Māori-cultural practices incorporating Māori tikanga and Māori knowledge with their clients even though they had little or no bicultural course content in their clinical training.  The data from the pilot programme, and the training needs analysis were used to refine the final workshop.  
The workshop was delivered to two university sites over a two-day period using intern clinical psychologist.  The programme evaluation had three components: (1) analysis of pre and post programme questionnaires; (2) analysis of the retrospective questionnaires (3) and an analysis of a participant’s case report on a Māori consumer. 
The themes that evolved from this research are that the critical incident technique is a useful way of identifying bicultural training material that would otherwise go unnoticed.  In relation to training evaluation, there is a real need to develop meaningful measures of bicultural competency acquisition for clinical students.  The finding advances the proposition that a distinct Māori psychology exists that could potentially challenge the relevance of Western psychology for Māori.  
A contextual theme underpinning bicultural training programmes is that training and practice occurs against the backdrop of Pākehā dominance in all aspects of academia and society. Consequently, there is a need to find a balance between Māori and Western psychological knowledge.  Future uses of this research will be in developing and evaluating bicultural training programmes, developing appropriate measures of cultural competency acquisition and assessing the potential for a distinct Māori psychology.

text: The Development and Evaluation of a Cultural Competency Training Programme for Psychologists Working with Māori: A Training Needs Analysis The purpose of this study was to develop and evaluate a cultural competency training programme for clinical psychology students to work with Māori consumers.  A pilot programme (study 1) was developed from the international and national cultural competency and bicultural training literature.  Following the pilot, it was identified that the programme could be made more robust by conducting a second study the training needs analysis using the critical incident technique.  Study two was conducted with 30 experienced clinical psychologists who had worked with Māori clients.
  
The training needs analysis sought to identify the awareness, knowledge and skills (AKS) that the experienced psychologists used in their practice with Māori.  An unexpected finding from study two was that the psychologists used distinctly Māori-cultural practices incorporating Māori tikanga and Māori knowledge with their clients even though they had little or no bicultural course content in their clinical training.  The data from the pilot programme, and the training needs analysis were used to refine the final workshop.  
The workshop was delivered to two university sites over a two-day period using intern clinical psychologist.  The programme evaluation had three components: (1) analysis of pre and post programme questionnaires; (2) analysis of the retrospective questionnaires (3) and an analysis of a participant’s case report on a Māori consumer. 
The themes that evolved from this research are that the critical incident technique is a useful way of identifying bicultural training material that would otherwise go unnoticed.  In relation to training evaluation, there is a real need to develop meaningful measures of bicultural competency acquisition for clinical students.  The finding advances the proposition that a distinct Māori psychology exists that could potentially challenge the relevance of Western psychology for Māori.  
A contextual theme underpinning bicultural training programmes is that training and practice occurs against the backdrop of Pākehā dominance in all aspects of academia and society. Consequently, there is a need to find a balance between Māori and Western psychological knowledge.  Future uses of this research will be in developing and evaluating bicultural training programmes, developing appropriate measures of cultural competency acquisition and assessing the potential for a distinct Māori psychology.

year: 2012