title: Characterizing porous microaggregates and soil organic matter sequestered in allophanic paleosols on Holocene tephras using synchrotron-based X-ray microscopy and spectroscopy

authors: Huang, Doreen Yu-Tuan

subjects: Science & Technology

abstract: Allophanic tephra-derived soils can sequester sizable quantities of soil organic matter (SOM). However, no studies have visualized the fine internal porous structure of allophanic soil microaggregates, nor studied the carbon structure preserved in such soils or paleosols. We used synchrotron radiation-based transmission X-ray microscopy (TXM) to perform 3D-tomography of the internal porous structure of dominantly allophanic soil microaggregates, and carbon near-edge X-ray absorption fine-structure (C NEXAFS) spectroscopy to characterize SOM in ≤ 12,000-year-old tephra-derived allophane-rich (with minor ferrihydrite) paleosols. The TXM tomography showed a vast network of internal, tortuous nano-pores within an allophanic microaggregate comprising nanoaggregates. SOM in the allophanic paleosols at four sites was dominated by carboxylic/carbonyl functional groups with subordinate quinonic, aromatic, and aliphatic groups. All samples exhibited similar compositions despite differences between the sites. That the SOM does not comprise specific types of functional groups through time implies that the functional groups are relict. The SOM originated at the land/soil surface: ongoing tephra deposition (intermittently or abruptly) then caused the land-surface to rise so that the once-surface horizons were buried more deeply and hence became increasingly isolated from inputs by the surficial/modern organic cycle. The presence of quinonic carbon, from biological processes but vulnerable to oxygen and light, indicates the exceptional protection of SOM and bio-signals in allophanic paleosols, attributable both to the porous allophane (with ferrihydrite) aggregates that occlude the relict SOM from degradation, and to rapid burial by successive tephra-fallout, as well as strong Al-organic chemical bonding. TXM and C NEXAFS spectroscopy help to unravel the fine structure of soils and SOM and are of great potential for soil science studies.

text: Characterizing porous microaggregates and soil organic matter sequestered in allophanic paleosols on Holocene tephras using synchrotron-based X-ray microscopy and spectroscopy Allophanic tephra-derived soils can sequester sizable quantities of soil organic matter (SOM). However, no studies have visualized the fine internal porous structure of allophanic soil microaggregates, nor studied the carbon structure preserved in such soils or paleosols. We used synchrotron radiation-based transmission X-ray microscopy (TXM) to perform 3D-tomography of the internal porous structure of dominantly allophanic soil microaggregates, and carbon near-edge X-ray absorption fine-structure (C NEXAFS) spectroscopy to characterize SOM in ≤ 12,000-year-old tephra-derived allophane-rich (with minor ferrihydrite) paleosols. The TXM tomography showed a vast network of internal, tortuous nano-pores within an allophanic microaggregate comprising nanoaggregates. SOM in the allophanic paleosols at four sites was dominated by carboxylic/carbonyl functional groups with subordinate quinonic, aromatic, and aliphatic groups. All samples exhibited similar compositions despite differences between the sites. That the SOM does not comprise specific types of functional groups through time implies that the functional groups are relict. The SOM originated at the land/soil surface: ongoing tephra deposition (intermittently or abruptly) then caused the land-surface to rise so that the once-surface horizons were buried more deeply and hence became increasingly isolated from inputs by the surficial/modern organic cycle. The presence of quinonic carbon, from biological processes but vulnerable to oxygen and light, indicates the exceptional protection of SOM and bio-signals in allophanic paleosols, attributable both to the porous allophane (with ferrihydrite) aggregates that occlude the relict SOM from degradation, and to rapid burial by successive tephra-fallout, as well as strong Al-organic chemical bonding. TXM and C NEXAFS spectroscopy help to unravel the fine structure of soils and SOM and are of great potential for soil science studies.

year: 2021

title: Politics of the Huntly Power Project

authors: McEnteer, Terrence John

subjects: Huntly Power Project

abstract: The political activity associated with the Huntly Power Project was examined in relation to a number of case studies using a Symbolic Interactionist approach to illustrate processes of power.

A broad view of the politics of energy use in New Zealand provided the setting to understand why there was continued Government Support for the project.

An analysis of the case studies and their relationship to the Huntly Power Project Planning Forum permitted an appraisal of the influence of the Forum on Political interaction.
It was confirmed that political activity was characterised by negotiation through the processes of symbolic manipulation and control of information.

The influence of the Forum for discussion primarily benefitted Government Departments for in conflict situations it promoted compromises which supported the overall goal to complete the project. It provided an opportunity to accommodate local interest group concerns and problems.
The Forum was largely successful as a device for the amelioration and mediation of conflict among groups which voiced reservation, about the effects of the project on the local area, when it was proposed and in its initial stages of development.

text: Politics of the Huntly Power Project The political activity associated with the Huntly Power Project was examined in relation to a number of case studies using a Symbolic Interactionist approach to illustrate processes of power.

A broad view of the politics of energy use in New Zealand provided the setting to understand why there was continued Government Support for the project.

An analysis of the case studies and their relationship to the Huntly Power Project Planning Forum permitted an appraisal of the influence of the Forum on Political interaction.
It was confirmed that political activity was characterised by negotiation through the processes of symbolic manipulation and control of information.

The influence of the Forum for discussion primarily benefitted Government Departments for in conflict situations it promoted compromises which supported the overall goal to complete the project. It provided an opportunity to accommodate local interest group concerns and problems.
The Forum was largely successful as a device for the amelioration and mediation of conflict among groups which voiced reservation, about the effects of the project on the local area, when it was proposed and in its initial stages of development.

year: 1976

title: Effective implementation science processes for Māori and Indigenous health interventions

authors: Harding, Truely Janine

subjects: Implementation science

abstract: Background
This thesis considers the implications implementation science has for Indigenous communities, specifically in reducing health inequities for the Māori community of New Zealand. Implementation science has been discussed among many Western health interventions and this thesis adds to that body of literature while highlighting the impact implementation has for Indigenous communities. 
Implementation science is a growing body of literature that can identify the most effective processes for health organisations and governments to best engage with Indigenous communities facing health inequities. An important aspect of that is ensuring the Indigenous voices and perspectives are represented just as much as the academics and scholars in those fields. The purpose of this thesis is to highlight the facilitators and barriers of implementing health interventions with Māori communities in Aotearoa New Zealand. This thesis aims to contribute to the conversation about reducing health inequities Māori communities’ face in New Zealand by enhancing implementation effectiveness. Therefore, it is an effort to illuminate the importance of the inclusion of community voice and perspectives when implementing health interventions with Indigenous communities. The thesis is with publications and includes four distinct studies.
Methodology & Methods
The key methodologies used in this study were Kaupapa Māori methodology and the He Pikinga Waiora (HPW) Implementation framework. Kaupapa Māori has been used as both a form of resistance and a methodological strategy, where research is created, developed, and carried within a Māori worldview with the aim to have positive outcomes that are beneficial for Māori. The HPW framework provided a holistic approach to guide this research through its key elements of: culture-centered approach, community engagement, systems thinking, and integrated knowledge translation. It is a forward-thinking approach as it is flexible in its design, which allows the framework to be tailored to a variety of implementation situations. The framework is centred in Kaupapa Māori methodology. Each principle of Kaupapa Māori and each element of HPW provide a holistic approach to implementation science.
Given this thesis includes four publications, a range of methods were employed for data collection. The first study was a systematic review of studies that was completed using preferred reporting items for systematic reviews and meta-analysis (PRISMA) guidelines. This involved a stringent search strategy and inclusion criteria where studies included went through data extraction and methodological appraisal followed by an analysis through a qualitative synthesis of findings. Studies two and three employed semi-structured interviews that were analysed through thematic analysis. Study two included 19 participants who were either health professionals or researchers, and study three included 17 participants who were health professionals. The fourth study included an online cross-sectional survey of 200 health professionals and used statistical modelling to identify factors important for implementation effectiveness.
Results 
The first study included a systematic literature review to examine the implementation of a non-communicable disease health intervention for Indigenous communities using HPW as an evaluation tool. Twenty-one studies were included. Two thirds of these studies demonstrated high levels of community engagement and community voice/ agency, while 40% had individual-level outcomes with some systems thinking, and 33% included individual-level outcomes and limited systems thinking. Finally, almost 40% of studies included high levels of end-user engagement reflective of integrated knowledge translation, but nearly half had limited end-user engagement with the remaining neither high or low. This study found that the HPW Implementation Framework is a comprehensive model for understanding implementation effectiveness in Indigenous communities and highlighted the high levels of community engagement and community voice. It also brings to light that the long-term sustainability and translation of evidence to practice may be inhibited because of lower levels of systems thinking and integrated knowledge translation. 
The second study researched the perceptions health professionals have on co-designing health-promotion interventions with Indigenous communities in New Zealand. Co-designing health-promotion interventions with Indigenous communities presents many benefits and challenges. This study identified that the facilitators for co-designing health-promotion interventions with Māori communities were collaboration and community voice. Furthermore, the two key barriers identified were mismanaged expectations between the researcher and community and the research constraints placed by funding agencies. The findings support the development of more effective co-design health-promotion interventions within Māori communities which may address health inequities. 
The third study endeavoured to identify the facilitators and barriers in disseminating and adopting a health intervention developed by a community-academic partnership. This study explored general perceptions of the implementation process and also included a case study of an innovative intervention. The facilitators included community engagement, programme structure, programme adaptability and creators’ experience. The barriers consisted of funding access, funding constraints and organisational constraints. This study also highlights the importance of community engagement and adaptability suggesting a need for translation as well as diffusion. Additionally, this study identified nuanced aspects of funding and resources for organisations that constrain organisations in employing health interventions designed by others.
The final study identified factors that New Zealand health professionals rate as important for implementation effectiveness for health interventions with Māori communities. This study provided a unique perspective of health professionals on implementation effectiveness when working with Māori/Indigenous communities. Paired sample t-tests revealed four levels of importance for implementation effectiveness with organisational teamwork and community autonomy as most important. Only 24% of participants had prior experience with a previous health intervention with Māori communities. The two key overall factors that were associated with participants’ rating of implementation effectiveness in these previous interventions were process and community. This study identified the key areas of implementation effectiveness as community engagement and participatory process. Furthermore, the final study contributes to the body of literature that challenges traditional top-down approaches of implementation.
Conclusion
This research aimed to identify the facilitators and barriers to disseminating and implementing health interventions with Māori communities in New Zealand. A synthesis of the four studies provided four key themes for this thesis. This thesis reinforces the position that Indigenous and Māori implementation science should be focused on the process and community engagement. In doing so, community engagement ensures a cultural-centred approach that prioritises Indigenous knowledge and autonomy in the process of implementation. Furthermore, the barriers identified in this thesis recognise the challenges that remain in limited funding for translating research into implementation practice and managing expectations amongst the implementation team. This thesis has implications for New Zealand district health boards and health organisations who are wanting to increase the effectiveness of the health interventions they are implementing with Māori communities, particularly when trying to address health inequities. Overall, this study is an attempt to bridge the gap between translating research and the processes of putting it into practice.

text: Effective implementation science processes for Māori and Indigenous health interventions Background
This thesis considers the implications implementation science has for Indigenous communities, specifically in reducing health inequities for the Māori community of New Zealand. Implementation science has been discussed among many Western health interventions and this thesis adds to that body of literature while highlighting the impact implementation has for Indigenous communities. 
Implementation science is a growing body of literature that can identify the most effective processes for health organisations and governments to best engage with Indigenous communities facing health inequities. An important aspect of that is ensuring the Indigenous voices and perspectives are represented just as much as the academics and scholars in those fields. The purpose of this thesis is to highlight the facilitators and barriers of implementing health interventions with Māori communities in Aotearoa New Zealand. This thesis aims to contribute to the conversation about reducing health inequities Māori communities’ face in New Zealand by enhancing implementation effectiveness. Therefore, it is an effort to illuminate the importance of the inclusion of community voice and perspectives when implementing health interventions with Indigenous communities. The thesis is with publications and includes four distinct studies.
Methodology & Methods
The key methodologies used in this study were Kaupapa Māori methodology and the He Pikinga Waiora (HPW) Implementation framework. Kaupapa Māori has been used as both a form of resistance and a methodological strategy, where research is created, developed, and carried within a Māori worldview with the aim to have positive outcomes that are beneficial for Māori. The HPW framework provided a holistic approach to guide this research through its key elements of: culture-centered approach, community engagement, systems thinking, and integrated knowledge translation. It is a forward-thinking approach as it is flexible in its design, which allows the framework to be tailored to a variety of implementation situations. The framework is centred in Kaupapa Māori methodology. Each principle of Kaupapa Māori and each element of HPW provide a holistic approach to implementation science.
Given this thesis includes four publications, a range of methods were employed for data collection. The first study was a systematic review of studies that was completed using preferred reporting items for systematic reviews and meta-analysis (PRISMA) guidelines. This involved a stringent search strategy and inclusion criteria where studies included went through data extraction and methodological appraisal followed by an analysis through a qualitative synthesis of findings. Studies two and three employed semi-structured interviews that were analysed through thematic analysis. Study two included 19 participants who were either health professionals or researchers, and study three included 17 participants who were health professionals. The fourth study included an online cross-sectional survey of 200 health professionals and used statistical modelling to identify factors important for implementation effectiveness.
Results 
The first study included a systematic literature review to examine the implementation of a non-communicable disease health intervention for Indigenous communities using HPW as an evaluation tool. Twenty-one studies were included. Two thirds of these studies demonstrated high levels of community engagement and community voice/ agency, while 40% had individual-level outcomes with some systems thinking, and 33% included individual-level outcomes and limited systems thinking. Finally, almost 40% of studies included high levels of end-user engagement reflective of integrated knowledge translation, but nearly half had limited end-user engagement with the remaining neither high or low. This study found that the HPW Implementation Framework is a comprehensive model for understanding implementation effectiveness in Indigenous communities and highlighted the high levels of community engagement and community voice. It also brings to light that the long-term sustainability and translation of evidence to practice may be inhibited because of lower levels of systems thinking and integrated knowledge translation. 
The second study researched the perceptions health professionals have on co-designing health-promotion interventions with Indigenous communities in New Zealand. Co-designing health-promotion interventions with Indigenous communities presents many benefits and challenges. This study identified that the facilitators for co-designing health-promotion interventions with Māori communities were collaboration and community voice. Furthermore, the two key barriers identified were mismanaged expectations between the researcher and community and the research constraints placed by funding agencies. The findings support the development of more effective co-design health-promotion interventions within Māori communities which may address health inequities. 
The third study endeavoured to identify the facilitators and barriers in disseminating and adopting a health intervention developed by a community-academic partnership. This study explored general perceptions of the implementation process and also included a case study of an innovative intervention. The facilitators included community engagement, programme structure, programme adaptability and creators’ experience. The barriers consisted of funding access, funding constraints and organisational constraints. This study also highlights the importance of community engagement and adaptability suggesting a need for translation as well as diffusion. Additionally, this study identified nuanced aspects of funding and resources for organisations that constrain organisations in employing health interventions designed by others.
The final study identified factors that New Zealand health professionals rate as important for implementation effectiveness for health interventions with Māori communities. This study provided a unique perspective of health professionals on implementation effectiveness when working with Māori/Indigenous communities. Paired sample t-tests revealed four levels of importance for implementation effectiveness with organisational teamwork and community autonomy as most important. Only 24% of participants had prior experience with a previous health intervention with Māori communities. The two key overall factors that were associated with participants’ rating of implementation effectiveness in these previous interventions were process and community. This study identified the key areas of implementation effectiveness as community engagement and participatory process. Furthermore, the final study contributes to the body of literature that challenges traditional top-down approaches of implementation.
Conclusion
This research aimed to identify the facilitators and barriers to disseminating and implementing health interventions with Māori communities in New Zealand. A synthesis of the four studies provided four key themes for this thesis. This thesis reinforces the position that Indigenous and Māori implementation science should be focused on the process and community engagement. In doing so, community engagement ensures a cultural-centred approach that prioritises Indigenous knowledge and autonomy in the process of implementation. Furthermore, the barriers identified in this thesis recognise the challenges that remain in limited funding for translating research into implementation practice and managing expectations amongst the implementation team. This thesis has implications for New Zealand district health boards and health organisations who are wanting to increase the effectiveness of the health interventions they are implementing with Māori communities, particularly when trying to address health inequities. Overall, this study is an attempt to bridge the gap between translating research and the processes of putting it into practice.

year: 2021