title: Security Analysis of the Evolved Packet Core for LTE Networks

authors: Wadsworth, Simon Oliver

subjects: LTE

abstract: Originally cellular networks handled calls and short messages only. Today, this has been extended to handle packet data services. However now the world is moving towards an entirely IP based mobile service based on LTE and the Evolved Packet Core. Security becomes even more important than before. Cellular networks will be using the same technology that runs the Internet, which could leave them open to a range of threats from the air interface side of the network, especially with the popularity of smart phones and USB "Mobile Broadband" modems. This thesis investigated a range of network protocols used in the Evolved Packet Core, as well as the possibility of attacks against these networks and their protocols and whether such attacks can be achieved, especially from cheap handheld devices. Further this thesis presents results showing that these network protocols are free from serious flaws in their specification.

text: Security Analysis of the Evolved Packet Core for LTE Networks Originally cellular networks handled calls and short messages only. Today, this has been extended to handle packet data services. However now the world is moving towards an entirely IP based mobile service based on LTE and the Evolved Packet Core. Security becomes even more important than before. Cellular networks will be using the same technology that runs the Internet, which could leave them open to a range of threats from the air interface side of the network, especially with the popularity of smart phones and USB "Mobile Broadband" modems. This thesis investigated a range of network protocols used in the Evolved Packet Core, as well as the possibility of attacks against these networks and their protocols and whether such attacks can be achieved, especially from cheap handheld devices. Further this thesis presents results showing that these network protocols are free from serious flaws in their specification.

year: 2013

title: Modelling sustainable ecotourism development on the Coromandel Peninsula in Aotearoa / New Zealand; a holistic systems approach based on the idea of chaos and complexity in a human-activity system

authors: Holzapfel, Rupert

abstract: This thesis studies ecotourism in the context of sustainable tourism development. The research is based on the premise that ecotourism and sustainable development can be expressed as operational theoretical concepts and as fields of empirical inquiry. Positioned in the realm of applied qualitative research in the social sciences, the study’s leitmotiv is that sustainable ecotourism development can be represented from an integrative perspective by designing a conceptual system model. The field work consists of an empirical inquiry placed in the Coromandel Peninsula in New Zealand/Aotearoa. By employing a regional case study to test the hypotheses of the thesis, the research attains an insight in the operationalisation of ecotourism and sustainable ecotourism development. It further produces new knowledge regarding the theorisation and conceptualisation of ecotourism and sustainable tourism development. 

Two main goals drive the study. The first is the exploration of the ontological, epistemological and ideological matrix of a holistic and systemic research perspective. The second goal is the examination of the methodological and practical utility of conceptual system modelling as a research approach. The adopted strategy allows for causal, correlative and teleological interpretations of the spatio-temporal physical and mental phenomena encountered.

With reference to critical realism the modelling process is recognised as an abstraction of ‘actual reality’ as opposed to ‘real reality’. Critical realism as an ontology accounts for the different ‘situated knowledges’ and worldviews that are present in the Coromandel Peninsula. The model itself reflects the researcher’s perception of an ‘empirical reality’, which is depicted at three resolution levels. Progressively coupling the different scales, the model design focuses on: (1) The configuration and behavioural patterns of the system as a whole; (2) the attributes of nested subsystems and their influences on each other as well as on the whole system; (3) the properties of individual system constituents, the processes and relationships linking these elements, and their effects on subsets of the system as well as on the system as a whole. Structural and process analyses, as well as an aetiological account of the system’s variables, do justice to the experienced complexity.

At each resolution level the research outcome entails two simultaneously developed models. Both show the characteristics of open, complex and adaptive human-activity systems. While the first model reflects the status quo of sustainable ecotourism development in the Coromandel Peninsula, the second one represents an idealised archetype that can be used as a grid for further improvements. Neither model offers a fait accompli. Having identified ecotourism and sustainable tourism development as subjective and dynamic problem areas, answers exist within a continuum of differential interpretations, satisfying changing interests, needs and expectations. Solutions are thus of a suggestive and tentative nature. 
On a theoretical level, the study utilises ideas derived from ‘general system theory’ and the ‘chaoplexity paradigm’. Conceptually, it expands the philosophical notion of methodological holism into a pluralistic approach. Methodological triangulation is employed to compensate for the anticipated shortcomings of individual methods. In a pragmatic sense ecotourism and sustainable tourism development are viewed as anthropogenic phenomena that emerge at the interface between humans and the natural environment. Human agency is interpreted as the fulcrum of the system’s evolution, which operates in both the mental and physical dimension.

Assuming that humans possess ‘free will’, and that rational and irrational as well as emotive and intuitive behaviour are inherent faculties of our nature, the system’s dynamics can not be sufficiently described via linear causalities. Non-linear relations, and a complex combination of multivariate and contingent causation, are interpreted predominantly as a result of human encounter and interaction. Answers to what should be ‘right’ and ‘wrong’ in ecotourism practice are based on the adoption of a pluralistic moral stance. This approach allows for competitive as well as cooperative elements as inherent human character traits that drive decision-making processes.

Based on the findings, the thesis concludes with a flexible template of systemic indices that can evaluate the environmental performance and development of ecotourism. It is argued that utilising the suggested set of complex indicators in conjunction bears the potential to enhance sustainable ecotourism development. The template’s adaptability to specific situational contexts is viewed as a prerequisite to cater for changing demands and expectations of individuals, local communities and regions.

text: Modelling sustainable ecotourism development on the Coromandel Peninsula in Aotearoa / New Zealand; a holistic systems approach based on the idea of chaos and complexity in a human-activity system This thesis studies ecotourism in the context of sustainable tourism development. The research is based on the premise that ecotourism and sustainable development can be expressed as operational theoretical concepts and as fields of empirical inquiry. Positioned in the realm of applied qualitative research in the social sciences, the study’s leitmotiv is that sustainable ecotourism development can be represented from an integrative perspective by designing a conceptual system model. The field work consists of an empirical inquiry placed in the Coromandel Peninsula in New Zealand/Aotearoa. By employing a regional case study to test the hypotheses of the thesis, the research attains an insight in the operationalisation of ecotourism and sustainable ecotourism development. It further produces new knowledge regarding the theorisation and conceptualisation of ecotourism and sustainable tourism development. 

Two main goals drive the study. The first is the exploration of the ontological, epistemological and ideological matrix of a holistic and systemic research perspective. The second goal is the examination of the methodological and practical utility of conceptual system modelling as a research approach. The adopted strategy allows for causal, correlative and teleological interpretations of the spatio-temporal physical and mental phenomena encountered.

With reference to critical realism the modelling process is recognised as an abstraction of ‘actual reality’ as opposed to ‘real reality’. Critical realism as an ontology accounts for the different ‘situated knowledges’ and worldviews that are present in the Coromandel Peninsula. The model itself reflects the researcher’s perception of an ‘empirical reality’, which is depicted at three resolution levels. Progressively coupling the different scales, the model design focuses on: (1) The configuration and behavioural patterns of the system as a whole; (2) the attributes of nested subsystems and their influences on each other as well as on the whole system; (3) the properties of individual system constituents, the processes and relationships linking these elements, and their effects on subsets of the system as well as on the system as a whole. Structural and process analyses, as well as an aetiological account of the system’s variables, do justice to the experienced complexity.

At each resolution level the research outcome entails two simultaneously developed models. Both show the characteristics of open, complex and adaptive human-activity systems. While the first model reflects the status quo of sustainable ecotourism development in the Coromandel Peninsula, the second one represents an idealised archetype that can be used as a grid for further improvements. Neither model offers a fait accompli. Having identified ecotourism and sustainable tourism development as subjective and dynamic problem areas, answers exist within a continuum of differential interpretations, satisfying changing interests, needs and expectations. Solutions are thus of a suggestive and tentative nature. 
On a theoretical level, the study utilises ideas derived from ‘general system theory’ and the ‘chaoplexity paradigm’. Conceptually, it expands the philosophical notion of methodological holism into a pluralistic approach. Methodological triangulation is employed to compensate for the anticipated shortcomings of individual methods. In a pragmatic sense ecotourism and sustainable tourism development are viewed as anthropogenic phenomena that emerge at the interface between humans and the natural environment. Human agency is interpreted as the fulcrum of the system’s evolution, which operates in both the mental and physical dimension.

Assuming that humans possess ‘free will’, and that rational and irrational as well as emotive and intuitive behaviour are inherent faculties of our nature, the system’s dynamics can not be sufficiently described via linear causalities. Non-linear relations, and a complex combination of multivariate and contingent causation, are interpreted predominantly as a result of human encounter and interaction. Answers to what should be ‘right’ and ‘wrong’ in ecotourism practice are based on the adoption of a pluralistic moral stance. This approach allows for competitive as well as cooperative elements as inherent human character traits that drive decision-making processes.

Based on the findings, the thesis concludes with a flexible template of systemic indices that can evaluate the environmental performance and development of ecotourism. It is argued that utilising the suggested set of complex indicators in conjunction bears the potential to enhance sustainable ecotourism development. The template’s adaptability to specific situational contexts is viewed as a prerequisite to cater for changing demands and expectations of individuals, local communities and regions.

year: 2003

title: An evaluation of Te Rau Puawai workforce 100: Perspectives of Te Rau Puawai bursars

authors: Nikora, Linda Waimarie

subjects: Maori students

abstract: The Te Rau Puawai programme is an attempt to change the nature of the Maori
mental health workforce. To do this, Maori with aspirations to work, or to continue to
work in the mental health workforce, are supported, financially and academically, to
complete a tertiary qualification relevant to the field.
To evaluate the Te Rau Puawai programme, the Ministry of Health commissioned the
Maori and Psychology Research Unit of the University of Waikato in July 2001. The
overall aim of the evaluation was to provide the Ministry with a clearer understanding
of the programme including: the perceived critical success factors, the barriers if any
regarding Te Rau Puawai, the impact of the programme, the extent to which the
programme may be transferable, gaps in the programme, and suggested
improvements.
The evaluation team set out to gather the experiences and perspectives of recipients of
Te Rau Puawai services by asking all bursars to complete a questionnaire and
volunteer for follow up interviews or focus groups. Sixty two bursars responded to
our questionnaire, and we complete focus group or individual follow up interviews
with 19 bursars.

text: An evaluation of Te Rau Puawai workforce 100: Perspectives of Te Rau Puawai bursars The Te Rau Puawai programme is an attempt to change the nature of the Maori
mental health workforce. To do this, Maori with aspirations to work, or to continue to
work in the mental health workforce, are supported, financially and academically, to
complete a tertiary qualification relevant to the field.
To evaluate the Te Rau Puawai programme, the Ministry of Health commissioned the
Maori and Psychology Research Unit of the University of Waikato in July 2001. The
overall aim of the evaluation was to provide the Ministry with a clearer understanding
of the programme including: the perceived critical success factors, the barriers if any
regarding Te Rau Puawai, the impact of the programme, the extent to which the
programme may be transferable, gaps in the programme, and suggested
improvements.
The evaluation team set out to gather the experiences and perspectives of recipients of
Te Rau Puawai services by asking all bursars to complete a questionnaire and
volunteer for follow up interviews or focus groups. Sixty two bursars responded to
our questionnaire, and we complete focus group or individual follow up interviews
with 19 bursars.

year: 2002-05-01