title: Book review: Issues in Contemporary Documentary

authors: Hight, Craig

subjects: book review

abstract: This article reviews the book “Issues in Contemporary Documentary” by Jane Chapman.

text: Book review: Issues in Contemporary Documentary This article reviews the book “Issues in Contemporary Documentary” by Jane Chapman.

year: 2010

title: Evaluation of composite laminates interleaved with nanofibre and microfibre veils.

authors: Collins-Gargan, Rosalie

abstract: The research covered in this thesis aimed to investigate the use of nanofibre and microfibre veils in carbon fibre reinforced composites and assessed the potential of the veils to improve damage resistance during impact and fatigue loading. It was hypothesised that the interleavings would increase the amount of energy required for crack propagation because of toughening due to fibre reinforcement mechanisms such as crack deflection, fibre pull out and fibre breakage. The work was undertaken as a combined project between the University of Waikato (Hamilton, New Zealand) and Revolution Fibres Ltd (Auckland, New Zealand). 
During this investigation, six thermoplastic polymers were chosen (acrylonitrile butadiene styrene (ABS), acrylonitrile styrene acrylate (ASA), polystyrene (PS), chlorinated polyvinyl chloride (CPVC), polymethyl methacrylate (PMMA) and polycarbonate (PC)) that could potentially be used for the electrospinning of polymer nanofibre veils. Nanofibre veils were successfully produced from PMMA, and a polymer blend of polyamide 6,6 (PA6,6) and PMMA, (referred to as 'nanoNyplex'). These veils, along with three other nanofibre veils (nanoPA6,6, poly vinyl butyral (nanoPVB), and poly ether sulfone (nanoPES)), three microfibre veils (polyphenylene sulfide (microPPS), polyetherimide (microPEI), and woven polyamide 6 (microtricot)) procured from other manufacturers, and three veils combining one of the nanofibre veils with each of the microfibre veils (microPPSnanoPA6,6, microPEInanoPA6,6, and microtricotnanoPA6,6) were then used as interleaves in the manufacture of carbon fibre reinforced epoxy composite panels. Interleaves were placed between every ply of prepreg. After curing the panels, test specimens were created to assess fatigue, vibration damping and compression after impact performance.
From the vibration damping study, it was found that the nanoNyplex interleaving improved damping the most. It was thought that energy dissipation was due friction brought about by the movement of the interleaving fibres in the matrix, resulting in friction due to weak adhesion between the nanoNyplex fibres and the epoxy matrix.
From the compression after impact (CAI) section of this study, it was found that specimens interleaved with nanoPA6,6, microPPS and microPPSnanoPA6,6 had the highest CAI strengths. From optical inspection, it appeared (in general) that as the CAI strength of the specimen increased, the length of the damage region also increased. However, those identified with the highest CAI strengths had shorter damage regions.
From the fatigue section of this study, it was found that the use of most interleavings, (apart from microtricot) increased the number of cycles to failure. Post fatigue test scanning electron microscopy confirmed that crack deflection was present for most interleaved specimens. Some evidence of pull out and breakage of the interleaving fibres was seen on the fracture surfaces of the nanoPA6,6, microPPS, microPEI, microPEInanoPA6,6 and microPPSnanoPA6,6 interleaved specimens.
For both CAI and fatigue, it was found that improvement was generally greater with veils that had a large number of fibres per unit area and high adhesion strength with the matrix. However, for CAI it seems that high fracture toughness was also desirable.

text: Evaluation of composite laminates interleaved with nanofibre and microfibre veils. The research covered in this thesis aimed to investigate the use of nanofibre and microfibre veils in carbon fibre reinforced composites and assessed the potential of the veils to improve damage resistance during impact and fatigue loading. It was hypothesised that the interleavings would increase the amount of energy required for crack propagation because of toughening due to fibre reinforcement mechanisms such as crack deflection, fibre pull out and fibre breakage. The work was undertaken as a combined project between the University of Waikato (Hamilton, New Zealand) and Revolution Fibres Ltd (Auckland, New Zealand). 
During this investigation, six thermoplastic polymers were chosen (acrylonitrile butadiene styrene (ABS), acrylonitrile styrene acrylate (ASA), polystyrene (PS), chlorinated polyvinyl chloride (CPVC), polymethyl methacrylate (PMMA) and polycarbonate (PC)) that could potentially be used for the electrospinning of polymer nanofibre veils. Nanofibre veils were successfully produced from PMMA, and a polymer blend of polyamide 6,6 (PA6,6) and PMMA, (referred to as 'nanoNyplex'). These veils, along with three other nanofibre veils (nanoPA6,6, poly vinyl butyral (nanoPVB), and poly ether sulfone (nanoPES)), three microfibre veils (polyphenylene sulfide (microPPS), polyetherimide (microPEI), and woven polyamide 6 (microtricot)) procured from other manufacturers, and three veils combining one of the nanofibre veils with each of the microfibre veils (microPPSnanoPA6,6, microPEInanoPA6,6, and microtricotnanoPA6,6) were then used as interleaves in the manufacture of carbon fibre reinforced epoxy composite panels. Interleaves were placed between every ply of prepreg. After curing the panels, test specimens were created to assess fatigue, vibration damping and compression after impact performance.
From the vibration damping study, it was found that the nanoNyplex interleaving improved damping the most. It was thought that energy dissipation was due friction brought about by the movement of the interleaving fibres in the matrix, resulting in friction due to weak adhesion between the nanoNyplex fibres and the epoxy matrix.
From the compression after impact (CAI) section of this study, it was found that specimens interleaved with nanoPA6,6, microPPS and microPPSnanoPA6,6 had the highest CAI strengths. From optical inspection, it appeared (in general) that as the CAI strength of the specimen increased, the length of the damage region also increased. However, those identified with the highest CAI strengths had shorter damage regions.
From the fatigue section of this study, it was found that the use of most interleavings, (apart from microtricot) increased the number of cycles to failure. Post fatigue test scanning electron microscopy confirmed that crack deflection was present for most interleaved specimens. Some evidence of pull out and breakage of the interleaving fibres was seen on the fracture surfaces of the nanoPA6,6, microPPS, microPEI, microPEInanoPA6,6 and microPPSnanoPA6,6 interleaved specimens.
For both CAI and fatigue, it was found that improvement was generally greater with veils that had a large number of fibres per unit area and high adhesion strength with the matrix. However, for CAI it seems that high fracture toughness was also desirable.

year: 2015

title: Proposing a Kaupapa Tuku Iho informed Māori model for practice to enhance cultural competence and foster kaimahi flourishing within health and social service providers

authors: Winiata, Rangimarie

subjects: Kaupapa Tuku Iho

abstract: Kaupapa Tuku Iho are Māori values that have been used across various social institutions to inform culturally competent practices with those accessing services. This thesis set out to promote the use Kaupapa Tuku Iho to not only enhance cultural competence and culturally appropriate services, but to take a step further and explore factors that foster the flourishing of kaimahi (workers) who deliver those services. There is research that suggests kaimahi in health and social services are overworked, burdened by stressed and approaching a state of compassion fatigue. This is detrimental for those both delivering and accessing services. This study will explore factors that foster kaimahi flourishing and enable kaimahi to practice Kaupapa Tuku Iho, along with factors that stand as barriers to achieving flourishing and culturally competent practice.
Furthermore, I have developed Ngā Kākano, which is a values-based model informed by Kaupapa Tuku Iho that aims to foster kaimahi flourishing and achieve culturally competent practice within health and social service providers. Ngā Kākano has been aligned to various psychological disciplines, including Community Psychology, Industrial-Organisational Psychology and Indigenous Psychology.
Data concerning the exploration of barriers and enablers kaimahi experienced was collected using a Kaupapa Māori research approach consisting of focus group structures combined with Wānanga as a Kaupapa Māori research methodology. The data was analysed using processes of thematic analysis, where themes were identified and presented in association with the relevant stages of Ngā Kākano.
	The findings of this study saw the organisation stood as a prominent barrier to kaimahi practising Kaupapa Tuku Iho and achieving flourishing. This reflected a need for the organisation to make improvements to support kaimahi in all necessary forms that enable them to achieve flourishing as reflected in positive states of being. It became apparent that most kaimahi were able to achieve flourishing through the practice of Kaupapa Tuku Iho between, amongst and across all kaimahi throughout the organisation irrespective of direct support from the organisation.

text: Proposing a Kaupapa Tuku Iho informed Māori model for practice to enhance cultural competence and foster kaimahi flourishing within health and social service providers Kaupapa Tuku Iho are Māori values that have been used across various social institutions to inform culturally competent practices with those accessing services. This thesis set out to promote the use Kaupapa Tuku Iho to not only enhance cultural competence and culturally appropriate services, but to take a step further and explore factors that foster the flourishing of kaimahi (workers) who deliver those services. There is research that suggests kaimahi in health and social services are overworked, burdened by stressed and approaching a state of compassion fatigue. This is detrimental for those both delivering and accessing services. This study will explore factors that foster kaimahi flourishing and enable kaimahi to practice Kaupapa Tuku Iho, along with factors that stand as barriers to achieving flourishing and culturally competent practice.
Furthermore, I have developed Ngā Kākano, which is a values-based model informed by Kaupapa Tuku Iho that aims to foster kaimahi flourishing and achieve culturally competent practice within health and social service providers. Ngā Kākano has been aligned to various psychological disciplines, including Community Psychology, Industrial-Organisational Psychology and Indigenous Psychology.
Data concerning the exploration of barriers and enablers kaimahi experienced was collected using a Kaupapa Māori research approach consisting of focus group structures combined with Wānanga as a Kaupapa Māori research methodology. The data was analysed using processes of thematic analysis, where themes were identified and presented in association with the relevant stages of Ngā Kākano.
	The findings of this study saw the organisation stood as a prominent barrier to kaimahi practising Kaupapa Tuku Iho and achieving flourishing. This reflected a need for the organisation to make improvements to support kaimahi in all necessary forms that enable them to achieve flourishing as reflected in positive states of being. It became apparent that most kaimahi were able to achieve flourishing through the practice of Kaupapa Tuku Iho between, amongst and across all kaimahi throughout the organisation irrespective of direct support from the organisation.

year: 2022