title: Dimension-Based Subscription Pruning for Publish/Subscribe Systems

authors: Bittner, Sven

subjects: computer science

abstract: Subscription pruning has been proven as valuable routing optimization for Boolean subscriptions in publish/ subscribe systems. It aims at optimizing subscriptions independently of each other and is thus applicable for all kinds of subscriptions regardless of their individual and collective structures. The original subscription pruning approach tries to optimize the event routing process based on the expected increase in network load. However, a closer look at pruning-based routing reveals its further applicability to optimizations in respect to other dimensions. In this paper, we introduce and investigate subscription pruning based on three dimensions of optimization: network load, memory usage, and system throughput. We present the algorithms to perform prunings based on these dimensions and discuss the results of a series of practical experiments. Our analysis reveals the advantages and disadvantages of the different dimensions of optimization and allows conclusions about the suitability of dimension-based pruning for different application requirements.

text: Dimension-Based Subscription Pruning for Publish/Subscribe Systems Subscription pruning has been proven as valuable routing optimization for Boolean subscriptions in publish/ subscribe systems. It aims at optimizing subscriptions independently of each other and is thus applicable for all kinds of subscriptions regardless of their individual and collective structures. The original subscription pruning approach tries to optimize the event routing process based on the expected increase in network load. However, a closer look at pruning-based routing reveals its further applicability to optimizations in respect to other dimensions. In this paper, we introduce and investigate subscription pruning based on three dimensions of optimization: network load, memory usage, and system throughput. We present the algorithms to perform prunings based on these dimensions and discuss the results of a series of practical experiments. Our analysis reveals the advantages and disadvantages of the different dimensions of optimization and allows conclusions about the suitability of dimension-based pruning for different application requirements.

year: 2006

title: Parental engagement in primary schooling in Aotearoa New Zealand: A policy enactment case study

authors: Smith, Megan

subjects: Parental engagement

abstract: Parental engagement in education is a deceptively simple idea. Supported by theory and empirical evidence, it is promoted in educational policy in many countries, including Aotearoa New Zealand. Nevertheless, research demonstrates a gap between the rhetoric and the reality of parental engagement practice. The critiques of factors and barriers influencing the gap in practice do not adequately address how schools, as sites of policy enactment, deal with the multifaceted dimensions of parental engagement. 
This study aims to increase the knowledge and understanding of the reality of parental engagement, especially as it is enacted and experienced in an Aotearoa New Zealand school setting. It focuses on two less considered material contexts, built and digital space. The research involved a single bounded case in an English-medium (state-not integrated) primary school. It is possible to apply multiple methods within a policy enactment case study, making it ideal for examining parental engagement's contextual, creative, and negotiated enactment process. 
The study's findings identified several limiting factors in the enactment of parental engagement. Dominant neoliberal and other, more traditional subjectivities constrained parental engagement by restricting the type of opportunities offered and which parents were able to take them up. Built space was underestimated as a source of both constraint and possible support for parental engagement, whilst digital space has transformative potential. 
The study concludes that greater clarity and a shared purpose would support the improved positioning of parents, the evaluation and alignment of built space to enhance parental engagement, maximise the potential of digital technologies, and help guide teachers and schools in their enactment. The findings have implications for government, teacher education, and teacher professional development to help realise these benefits for parental engagement.

text: Parental engagement in primary schooling in Aotearoa New Zealand: A policy enactment case study Parental engagement in education is a deceptively simple idea. Supported by theory and empirical evidence, it is promoted in educational policy in many countries, including Aotearoa New Zealand. Nevertheless, research demonstrates a gap between the rhetoric and the reality of parental engagement practice. The critiques of factors and barriers influencing the gap in practice do not adequately address how schools, as sites of policy enactment, deal with the multifaceted dimensions of parental engagement. 
This study aims to increase the knowledge and understanding of the reality of parental engagement, especially as it is enacted and experienced in an Aotearoa New Zealand school setting. It focuses on two less considered material contexts, built and digital space. The research involved a single bounded case in an English-medium (state-not integrated) primary school. It is possible to apply multiple methods within a policy enactment case study, making it ideal for examining parental engagement's contextual, creative, and negotiated enactment process. 
The study's findings identified several limiting factors in the enactment of parental engagement. Dominant neoliberal and other, more traditional subjectivities constrained parental engagement by restricting the type of opportunities offered and which parents were able to take them up. Built space was underestimated as a source of both constraint and possible support for parental engagement, whilst digital space has transformative potential. 
The study concludes that greater clarity and a shared purpose would support the improved positioning of parents, the evaluation and alignment of built space to enhance parental engagement, maximise the potential of digital technologies, and help guide teachers and schools in their enactment. The findings have implications for government, teacher education, and teacher professional development to help realise these benefits for parental engagement.

year: 2022

title: Why do Maori Disconnect?  From their tikanga and legal associated rights and responsibilities within a contemporary world

authors: Jones, Mary Te Kuini

subjects: Ahi Kaa

abstract: This thesis examines some of the reasons why Māori disconnect from their legal and tikanga rights and responsibilities within the contemporary world of today.  The aim of this research project is to identify some of the associated rights and responsibilities of Māori - as land owners, shareholders, Whānau, hapū and tribal members.  Whilst it seeks to reveal some of the desires and visions of the interview participants, the objective is not to seek resolution.  The focus is to identify what deters or dissuades owners from returning and/or participating.  It also seeks to identify whether the assumption or label of disconnection is a reality or myth. 

‘Māori Diaspora’ particularly refers to the substantial increase in outward migration (also referred to as out migration) of Māori leaving New Zealand, and more significantly migrating to Australia, which was in direct response to the neo-liberal reforms of the late 1980’s (Smith L. , 2006).   With the New Zealand government refusing to acknowledge the negative impact their legislation and policy had on Māori, they continued to introduce new systems that were ultimately designed to push many to breaking point.  
Māori who could no longer bear the cumulative effects of such oppression emigrated in search of better economic opportunities and a higher standard of living for their families.  Meanwhile, back home in Aotearoa, the Māori Diaspora left behind a complex set of problems in its wake with diminishing hapū and tribal members driven from their homeland who are gradually becoming dis-connected and estranged from their whenua tipu.   

Whilst repatriation is an uncomfortable topic for many Māori who wish to retain their overseas residency, many continue to dismiss the compounding effects of their absence and the heavy burden carried by those who remain in Aotearoa to keep the home fires burning (or the ‘ahi kaa’).

text: Why do Maori Disconnect?  From their tikanga and legal associated rights and responsibilities within a contemporary world This thesis examines some of the reasons why Māori disconnect from their legal and tikanga rights and responsibilities within the contemporary world of today.  The aim of this research project is to identify some of the associated rights and responsibilities of Māori - as land owners, shareholders, Whānau, hapū and tribal members.  Whilst it seeks to reveal some of the desires and visions of the interview participants, the objective is not to seek resolution.  The focus is to identify what deters or dissuades owners from returning and/or participating.  It also seeks to identify whether the assumption or label of disconnection is a reality or myth. 

‘Māori Diaspora’ particularly refers to the substantial increase in outward migration (also referred to as out migration) of Māori leaving New Zealand, and more significantly migrating to Australia, which was in direct response to the neo-liberal reforms of the late 1980’s (Smith L. , 2006).   With the New Zealand government refusing to acknowledge the negative impact their legislation and policy had on Māori, they continued to introduce new systems that were ultimately designed to push many to breaking point.  
Māori who could no longer bear the cumulative effects of such oppression emigrated in search of better economic opportunities and a higher standard of living for their families.  Meanwhile, back home in Aotearoa, the Māori Diaspora left behind a complex set of problems in its wake with diminishing hapū and tribal members driven from their homeland who are gradually becoming dis-connected and estranged from their whenua tipu.   

Whilst repatriation is an uncomfortable topic for many Māori who wish to retain their overseas residency, many continue to dismiss the compounding effects of their absence and the heavy burden carried by those who remain in Aotearoa to keep the home fires burning (or the ‘ahi kaa’).

year: 2018