title: Magnetic energy release in dynamic fan reconnection models

authors: Craig, Ian J.D.

subjects: MHD—plasmas—sun

abstract: The problem of dynamic, three-dimensional magnetic reconnection is considered. Analytic “fan current” solutions are derived by superposing plane-wave disturbances on magnetic X-point equilibria. The localization of the wave produces a strong current sheet containing the neutral point. It is shown that the classical rate of resistive dissipation in the sheet, namely Wn~n1/2, represents the slowest possible energy-loss rate for the disturbance. The conditions required for fast coronal reconnection are then discussed. It is pointed out that significant “flare-like” energy release may be possible under physically realizable conditions. Moreover, the small length scales associated with the current sheet widths of order ∆x~n1/2 suggest that conditions are probably collisionless close to the neutral point. It is argued that our results are consistent with magnetic reconnection simulations that display “stalling” of the merging rate at small plasma resistivities.

text: Magnetic energy release in dynamic fan reconnection models The problem of dynamic, three-dimensional magnetic reconnection is considered. Analytic “fan current” solutions are derived by superposing plane-wave disturbances on magnetic X-point equilibria. The localization of the wave produces a strong current sheet containing the neutral point. It is shown that the classical rate of resistive dissipation in the sheet, namely Wn~n1/2, represents the slowest possible energy-loss rate for the disturbance. The conditions required for fast coronal reconnection are then discussed. It is pointed out that significant “flare-like” energy release may be possible under physically realizable conditions. Moreover, the small length scales associated with the current sheet widths of order ∆x~n1/2 suggest that conditions are probably collisionless close to the neutral point. It is argued that our results are consistent with magnetic reconnection simulations that display “stalling” of the merging rate at small plasma resistivities.

year: 1999-01

title: Composition Portfolio

authors: McKinnon, Peter Jonathan

subjects: orchestral

abstract: This portfolio of original compositions is made up of six works, two electroacoustic and four acoustic. Firstly a Piano suite for solo piano, composed of four different short works, exploring different themes and modes based on eight synthetic scales. Cello and cello is a work for two cellos, exploring the sometimes-dual nature of the mind and yourself. Composed in two movements and with the intention of having a slight theatrical aspect to it. An electroacoustic work, Kaffeine is a composition based around the process of coffee making and the effects it has on people who drink it. Made purely from samples collected from a home coffee machine using a digital recorder. Piaonics is another electroacoustic piece, this one focusing on subtle aspects of the pianos timbre. Two sets of synthetic scales where made, each of the notes in the synthetic scale where sampled on a grand piano to get the best quality samples. Pleonasm is an exploratory work for Viola, clarinet and cello. The work has aleotoric aspects to it, wherein parts don’t always start or finish together and sometimes have different tempo markings. The final work in the portfolio is the classical symphony in E minor, written as an exercise to competently write in the style of a traditional classical symphony. The work is in four movements, fast, slow, fast, fast and takes inspiration from Haydn, Prokofiev and Mahler.

text: Composition Portfolio This portfolio of original compositions is made up of six works, two electroacoustic and four acoustic. Firstly a Piano suite for solo piano, composed of four different short works, exploring different themes and modes based on eight synthetic scales. Cello and cello is a work for two cellos, exploring the sometimes-dual nature of the mind and yourself. Composed in two movements and with the intention of having a slight theatrical aspect to it. An electroacoustic work, Kaffeine is a composition based around the process of coffee making and the effects it has on people who drink it. Made purely from samples collected from a home coffee machine using a digital recorder. Piaonics is another electroacoustic piece, this one focusing on subtle aspects of the pianos timbre. Two sets of synthetic scales where made, each of the notes in the synthetic scale where sampled on a grand piano to get the best quality samples. Pleonasm is an exploratory work for Viola, clarinet and cello. The work has aleotoric aspects to it, wherein parts don’t always start or finish together and sometimes have different tempo markings. The final work in the portfolio is the classical symphony in E minor, written as an exercise to competently write in the style of a traditional classical symphony. The work is in four movements, fast, slow, fast, fast and takes inspiration from Haydn, Prokofiev and Mahler.

year: 2011

title: Kia tata mai te pae tāwhiti: Nurturing success in psychology for Māori and Pasifika

authors: Bidois, Devyn

abstract: Embarking on the university education journey is commonly perceived as a pathway to success and enhanced career prospects. However, for Māori and Pasifika students in psychology, this trajectory is distinctly burdened with challenges beyond their control, particularly concerning low clinician representation and educational achievement. This thesis thus explores the experiences, barriers, and aspirations of Māori and Pasifika students engaged in psychology studies in Tauranga Moana. Guided by the principles of Kaupapa Māori, the overarching goal of this thesis is to empower and advocate for students, shedding light on their unique journeys and fostering a platform for meaningful change within the academic landscape. Two group interviews with undergraduate students and two individual interviews with postgraduate students were conducted to explore the research topic. These were then analysed using inductive thematic analysis, and a social constructionist epistemology within a Kaupapa Māori paradigm, to contextualise participant experiences. Three core themes are identified in this analysis. The first theme, the Western Educational Environment, underscores the challenges students face within a system shaped by Western norms. A monocultural, individualistic approach to curriculum, assessments, and teaching methods impacts the diverse cultural perspectives of students, shaping their overall study experiences. The second theme, Pathways, explores the nuanced journeys of tauira navigating various options related to papers, qualifications, and future career prospects. The third theme, Equity, critically examines the (lack of) equity in relation to facilities and services at the Tauranga campus compared to those in Hamilton. Recommendations for the School of Psychology focus on improving discipline relevance for Māori and Pasifika students through methods integrating Kaupapa Māori content and strategies as well as addressing historical issues aims to empower, retain, and support students to higher positions in psychology.

text: Kia tata mai te pae tāwhiti: Nurturing success in psychology for Māori and Pasifika Embarking on the university education journey is commonly perceived as a pathway to success and enhanced career prospects. However, for Māori and Pasifika students in psychology, this trajectory is distinctly burdened with challenges beyond their control, particularly concerning low clinician representation and educational achievement. This thesis thus explores the experiences, barriers, and aspirations of Māori and Pasifika students engaged in psychology studies in Tauranga Moana. Guided by the principles of Kaupapa Māori, the overarching goal of this thesis is to empower and advocate for students, shedding light on their unique journeys and fostering a platform for meaningful change within the academic landscape. Two group interviews with undergraduate students and two individual interviews with postgraduate students were conducted to explore the research topic. These were then analysed using inductive thematic analysis, and a social constructionist epistemology within a Kaupapa Māori paradigm, to contextualise participant experiences. Three core themes are identified in this analysis. The first theme, the Western Educational Environment, underscores the challenges students face within a system shaped by Western norms. A monocultural, individualistic approach to curriculum, assessments, and teaching methods impacts the diverse cultural perspectives of students, shaping their overall study experiences. The second theme, Pathways, explores the nuanced journeys of tauira navigating various options related to papers, qualifications, and future career prospects. The third theme, Equity, critically examines the (lack of) equity in relation to facilities and services at the Tauranga campus compared to those in Hamilton. Recommendations for the School of Psychology focus on improving discipline relevance for Māori and Pasifika students through methods integrating Kaupapa Māori content and strategies as well as addressing historical issues aims to empower, retain, and support students to higher positions in psychology.

year: 2024