title: In-situ geotechnical characterization of mixed-grain-size bedforms using a dynamic penetrometer

authors: Stark, Nina

subjects: Sediments

abstract: We tested the ability of a small dynamic penetrometer, Nimrod, to infer geotechnical properties of sediment mixtures in the inner shelf. The penetrometer is light and easy to operate, and its operation by scuba divers ensures a greater degree of precision than ship-based penetrometer deployments. We have studied selected positions along a sorted bedform (similar to 100 m wide) on the continental shelf off the Coromandel Peninsula close to Tairua, North Island of New Zealand, and additionally took sediment samples at the exact positions of penetrometer impact, also by scuba divers. The derived dynamic penetrometer signatures (i) measured deceleration of the probe and estimated quasi-static bearing capacity as a measure of sediment strength, (ii) reflected changes in grain-size distribution ranging from very fine to very coarse sands, and (iii) revealed the uppermost seafloor stratification (top layer 2-6 cm) potentially being an indicator for sediment dynamics. In this manner, the device proved to be suitable for spatially fine-scaled surveys using divers' support and might deliver complementary information about sediment dynamics, in this case sorted-bedform maintenance

text: In-situ geotechnical characterization of mixed-grain-size bedforms using a dynamic penetrometer We tested the ability of a small dynamic penetrometer, Nimrod, to infer geotechnical properties of sediment mixtures in the inner shelf. The penetrometer is light and easy to operate, and its operation by scuba divers ensures a greater degree of precision than ship-based penetrometer deployments. We have studied selected positions along a sorted bedform (similar to 100 m wide) on the continental shelf off the Coromandel Peninsula close to Tairua, North Island of New Zealand, and additionally took sediment samples at the exact positions of penetrometer impact, also by scuba divers. The derived dynamic penetrometer signatures (i) measured deceleration of the probe and estimated quasi-static bearing capacity as a measure of sediment strength, (ii) reflected changes in grain-size distribution ranging from very fine to very coarse sands, and (iii) revealed the uppermost seafloor stratification (top layer 2-6 cm) potentially being an indicator for sediment dynamics. In this manner, the device proved to be suitable for spatially fine-scaled surveys using divers' support and might deliver complementary information about sediment dynamics, in this case sorted-bedform maintenance

year: 2012

title: From willingness to engage to willingness to pay: A behavioral  experiment on green consumer information in a digital product passport

authors: Dorner, Zack

subjects: circular economy

abstract: Information represents the “third wave” of environmental policy. Existing evidence shows consumers increase their willingness to pay (WTP) for environmentally friendly products with clear labelling. However, there is a gap in the literature regarding whether consumers have a willingness to engage (WTE) with detailed information, for example, through a Digital Product Passport (DPP). This technological innovation is part of the European Union’s new circular economy action plan. In our theoretical model, a green consumer decides whether to invest in information on how to mitigate their environmental damage, but at a cognitive cost. We test the model in a lab experiment selling an environmentally friendly toothbrush, but information about its environmental credentials is only available through a DPP. We find education on the DPP’s purpose is key to increasing revealed WTE when a DPP is available. Participants with a high stated WTE engage with the DPP regardless; the increase in revealed WTE comes from those with a lower stated WTE. Engagement with the DPP, in the case that it contains positive environmental information, increases WTP. The policy implications of our results are that education about the purpose of the DPP is required in order to increase the likelihood of actual consumer engagement with it, as long as it is user friendly. However, engagement with a DPP may not lead to further shifts in environmental orientation and behavior. Our study also demonstrates novel measures of WTE, and how these can be used to understand pro-environmental consumer behavior in a theoretically informed manner.

text: From willingness to engage to willingness to pay: A behavioral  experiment on green consumer information in a digital product passport Information represents the “third wave” of environmental policy. Existing evidence shows consumers increase their willingness to pay (WTP) for environmentally friendly products with clear labelling. However, there is a gap in the literature regarding whether consumers have a willingness to engage (WTE) with detailed information, for example, through a Digital Product Passport (DPP). This technological innovation is part of the European Union’s new circular economy action plan. In our theoretical model, a green consumer decides whether to invest in information on how to mitigate their environmental damage, but at a cognitive cost. We test the model in a lab experiment selling an environmentally friendly toothbrush, but information about its environmental credentials is only available through a DPP. We find education on the DPP’s purpose is key to increasing revealed WTE when a DPP is available. Participants with a high stated WTE engage with the DPP regardless; the increase in revealed WTE comes from those with a lower stated WTE. Engagement with the DPP, in the case that it contains positive environmental information, increases WTP. The policy implications of our results are that education about the purpose of the DPP is required in order to increase the likelihood of actual consumer engagement with it, as long as it is user friendly. However, engagement with a DPP may not lead to further shifts in environmental orientation and behavior. Our study also demonstrates novel measures of WTE, and how these can be used to understand pro-environmental consumer behavior in a theoretically informed manner.

year: 2025

title: Kei ō tātou ringa te rongoa? Is the remedy already at hand?
The assertion and application of tikanga as a valid and credible response to contemporary issues.

authors: Taitoko, Mikaere

subjects: tikanga

abstract: This thesis examines the notion that tikanga is well positioned to address issues confronting Māori and other indigenous groups who strive to achieve self-determination and the freedom to be and to do.  This work is inspired by the late John Te Rangi-āniwaniwa Rangihau’s statement, “Ko te rongoā kei roto i ō tātau ringa” (1987, p. 24), which promotes the notion that through culture and identity Māori already have within their grasp the answers to contemporary matters of import in te ao Māori.  This thesis inverts that statement and presents it as a question querying whether indeed the remedy is at hand and, if so, could tikanga and cultural identity be that remedy.  To that end this study deliberately sets out to examine if the rongoa of self-determination, power and freedom can be achieved by the assertion and application of Māori ways of being and doing, that is to say by exercising tikanga.
Understanding notions of tikanga, sovereignty, and indigeneity is pivotal to this study as is articulating the notion of third space.  This thesis argues that these four notions are interconnected when considering ideas of self-determination for disempowered groups.  A case study forms a large part of this work and focuses on an indigenous group operating from a pre-contact tupuna worldview and based on He Whakaputanga o te Rangatiratanga o Nu Tireni 1835/Declaration of Independence of New Zealand 1835.  This particular group was chosen because it presented as being a point of intersect for the four notions of tikanga, sovereignty, indigeneity and the third space.
This thesis argues that whilst tikanga is a powerful mechanism for determining and rationalising ways of being and doing it has less to offer at a pragmatic level when it comes to effecting change in the status quo.  However, when overlaid with the third space lens new perspectives can be enunciated and new opportunities detected which in turn can lead to determining new actions.  Through this study it becomes clear that the assertion and application of tikanga contributes to, but on its own is not, the whole answer.

text: Kei ō tātou ringa te rongoa? Is the remedy already at hand?
The assertion and application of tikanga as a valid and credible response to contemporary issues. This thesis examines the notion that tikanga is well positioned to address issues confronting Māori and other indigenous groups who strive to achieve self-determination and the freedom to be and to do.  This work is inspired by the late John Te Rangi-āniwaniwa Rangihau’s statement, “Ko te rongoā kei roto i ō tātau ringa” (1987, p. 24), which promotes the notion that through culture and identity Māori already have within their grasp the answers to contemporary matters of import in te ao Māori.  This thesis inverts that statement and presents it as a question querying whether indeed the remedy is at hand and, if so, could tikanga and cultural identity be that remedy.  To that end this study deliberately sets out to examine if the rongoa of self-determination, power and freedom can be achieved by the assertion and application of Māori ways of being and doing, that is to say by exercising tikanga.
Understanding notions of tikanga, sovereignty, and indigeneity is pivotal to this study as is articulating the notion of third space.  This thesis argues that these four notions are interconnected when considering ideas of self-determination for disempowered groups.  A case study forms a large part of this work and focuses on an indigenous group operating from a pre-contact tupuna worldview and based on He Whakaputanga o te Rangatiratanga o Nu Tireni 1835/Declaration of Independence of New Zealand 1835.  This particular group was chosen because it presented as being a point of intersect for the four notions of tikanga, sovereignty, indigeneity and the third space.
This thesis argues that whilst tikanga is a powerful mechanism for determining and rationalising ways of being and doing it has less to offer at a pragmatic level when it comes to effecting change in the status quo.  However, when overlaid with the third space lens new perspectives can be enunciated and new opportunities detected which in turn can lead to determining new actions.  Through this study it becomes clear that the assertion and application of tikanga contributes to, but on its own is not, the whole answer.

year: 2013