bluuebunny/crossref_metadata_2025 huggingface dataset:
Studi Pelepasan Beban Pada PLTU Keramasan Saat Terjadi Penurunan Frekuensi
Authors: Lingga Melingga , Azis Abdul , Pebrianti Irine Kartika
Published: November 2021

The demand for electric power increases along with the development of technological progress and development. The use of electricity is an important factor in people's lives, both in households, lighting, communication, and industrial. The purpose of this research is to calculate the frequency response before load shedding, to calculate the frequency response after load shedding and to analyze the load recovery after normal frequency in the load. The methods to be used in writing and discussing this research are: Observation Method, Interview Method / Interview, Literature Study Method. Based on the calculation of the data in the previous chapter, the following conclusions can be drawn, the calculation of the conditions before carrying out the load shedding is based on the rate of decreasing frequency from the result obtained is 1.6 Hz / s, then to calculate the time used in determining the frequency at the time of load shedding then the results obtained are 54 Hz, Meanwhile, to calculate the frequency after load shedding that is obtained is 49.1 Hz, Calculation of load shedding time is expected when there is a decrease in frequency of 10.5 seconds, Calculation of the load rate of increase expected after load shedding then the optimal load value that must be removed is 5.55 w.  
Effort, Idiosyncratic Risk and Investment Under Uncertainty
Authors:   , Taylor William S
Published: November 2021

This thesis is based upon four very simple premises: 1. managers, not shareholders make the investment decisions for the firm; 2. managers do more than just say "yes" or "no" to investments, they can also exert effort that affects the payoff from investment; 3. executive compensation schemes can cause managers to hold more stock than is optimal for diversification purposes; and 4. many investments can be delayed and involve irreversible capital costs as well as uncertain payoffs. Combining these four premises gives the two central questions this thesis attempts to answer: 1. How does the level of managerial stock-ownership affect the investment decisions managers make for the firm? and 2. given the answer to (1), how does this affect the shareholder's decision to hire a manager? In this thesis I use a continuous time "Real Options" framework to answer these questions. The form of the utility function assumed for the manager has a huge impact on the tractability of the modelling. The assumption of Constant Relative Risk Aversion (CRRA) utility as opposed to Constant Absolute Risk Aversion (CARA) causes the manager's valuation of the cash  flow (the very first step of the modelling) to become wealth dependent. This in itself is an interesting issue, but it also poses interesting numerical issues and makes the later steps of the analysis intractable. Because of this we split the substantive analysis of this thesis into two parts. In the first we assume CARA utility in order to remove wealth dependence from the valuation and obtain a "clean path" to the end goal of a dynamic model of hiring, effort and irreversible investment. In the second we focus on CRRA utility thus allowing the manager's valuation to depend on his financial wealth. We then explain the resultant numerical issues, and the appropriate approach to their solution.
Water Security or Water Resilience? Climate Resilient Water Management in Wellington New Zealand
Authors:   , Taptiklis Nigel
Published: November 2021

A confluence of factors including population growth, climate change, resource constraints and legacy effects poses significant challenges to the sustainability of cities worldwide. With the deep complexity inherent in socio-ecological systems, 'solutions' sometimes shift the problem in space or time or drive the system in the opposite direction than intended. A case study into climate change adaptation and community resilience in the context of urban water management was undertaken in Wellington, New Zealand, using a 'post normal' science approach. Climate change and water demand scenarios for 2040 and 2090 were analysed using Greater Wellington Water’s 'sustainable yield' model and downscaled general circulation climate model data. Semi-structured interviews and a systems modelling workshop were conducted in order to gain an understanding of the local context for adaptation, resilience and response option selection. With a 20% reduction of aggregate per capita demand and greater storage capacity, Wellington has sufficient water from current sources to smooth increased flow variability due to climate change and to meet increased demand from the projected increase in population. Adaptation pathways and the potential for 'maladaptation' is explored and an integrated framework for optimising urban water resilience developed.
Selecting for Celibacy: Cultural Evolution and the Puzzling Case of Buddhist Celibacy
Authors:   , Dalzell Caitlin
Published: November 2021

Buddhist celibacy provides an example of religious behaviour which appears puzzling from the vantage point of genetic selection, but whose maintenance can be partially explained because of the dynamics of cultural selection. In this thesis, I examine how and why celibacy is maintained and perpetuated within Buddhism and how this relates to the explanations cultural selection offers for costs within groups. I argue that celibacy is adaptive because it divides Buddhist communities into two parts, stimulating innate tendencies towards in-group cooperation without the need for an outside group. Because Buddhist celibates are also materially non-productive their presence necessitates increased cooperative behaviours in lay communities. I argue that the endurance of the parts of Buddhist traditions which are necessary to maintaining celibate practise provides evidence that cultural selection has shaped the tradition to perpetuate and reinforce celibacy, a behaviour which is adaptive because it promotes cooperative behaviours within a divided cultural group. Celibacy increases the cultural fitness of Buddhist communities.
Structure and Agency: Exploring Aspirations of Youth Trainees
Authors:   , Kilpatrick Leah
Published: November 2021

This case study explores the aspirations of young people in a youth training programme and how structure and agency shape their aspirations. Transition policy is currently based on the pathways framework which provides many different educational and training ‘pathways’ to assist young people to move from school to work. The pathways framework uses the ‘pathways metaphor’ as a response to the knowledge-wave economy where the individual is responsible for creating their own ‘pathway’ in a flexible and complex labour market. For youth in Youth Training their ‘pathway’ is often non-linear and complex; not having followed conventional or mainstream transitional markers they are easily labelled problem-youth and ‘at-risk’ or vulnerable to failure. This study endeavoured to move beyond the labels of young in Youth Training to explore their stories in the context of the lived-experiences. It gave them the opportunity to voice their aspirations for the future and considered the structure or societal constraints associated with their transitional experience. A case study was undertaken with a group young people in Youth Training aged between 16 and 17 years old. Eight semi-structured interviews and two focus groups were held with four male and four female participants, of which the interview questions gave the opportunity to explore how young people felt about their future aspirations, the relevance of their training to their aspirations and how the students exercise their agency during training. Themes were drawn from the data and interpreted using choice biography, youth agency frameworks and discourse theory. The discussion of the data also explored the structural constraints within which the data sits. Findings showed that the future aspirations of young people in youth training are shaped by their lived-experiences. These lived-experiences are mediated by structural constraints and their ability to use agency. Structural constraints negatively affected their lived-experiences; and therefore, at times impacted on their future aspirations. The young people in this study described many complex and unique stories that exhibited the use of agency. Agency was exercised in the context of their lived-experiences to move beyond structural constraints and pursue their future aspirations. This study recommends the use of the contextual research approach when exploring youth transition research.
Analysis and Implementation of Reinforcement Learning on a GNU Radio Cognitive Radio Platform
Authors:   , Ren Yu
Published: November 2021

Spectrum today is regulated based on fixed licensees. In the past radio operators have been allocated a frequency band for exclusive use. This has become problem for new users and the modern explosion in wireless services that, having arrived late find there is a scarcity in the remaining available spectrum. Cognitive radio (CR) presents a solution. CRs combine intelligence, spectrum sensing and software reconfigurable radio capabilities. This allows them to opportunistically transmit among several licensed bands for seamless communications, switching to another channel when a licensee is sensed in the original band without causing interference. Enabling this is an intelligent dynamic channel selection strategy capable of finding the best quality channel to transmit on that suffers from the least licensee interruption. This thesis evaluates a Q-learning channel selection scheme using an experimental approach. A cognitive radio deploying the scheme is implemented on GNU Radio and its performance is measured among channels with different utilizations in terms of its packet transmission success rate, goodput and interference caused. We derive similar analytical expressions in the general case of large-scale networks. Our results show that using the Q-learning scheme for channel selection significantly improves the goodput and packet transmission success rate of the system.
The Role of Climate and Bed Topography on the Evolution of the Tasman Glacier Since the Last Glacial Maximum
Authors:   , McKinnon Karen Aline
Published: November 2021

Mountain glaciers respond to climatic changes by advancing or retreating, leaving behind a potentially powerful record of climate through moraine deposition. Estimates of past climate have been made based on the moraine record alone, using geometrical arguments; however, these methods necessarily ignore the effects of glacier dynamics and bed modification. Here, a one-dimensional coupled mass balance-flowline model is used to place constraints on the climate of the Late-glacial (13.5–11.6 kyr ago) and Last Glacial Maximum (LGM, 28 – 17.5 kyr ago) based on the well-mapped and -dated moraines at Tasman Glacier/Lake Pukaki, South Island, New Zealand. Due to the highly-dynamic nature of the system, distinct longitudinal bed profiles are considered for each of the glaciations modelled; the reconstructions show that terminal overdeepenings are likely present in all bed profiles, and hundreds of metres of sediment has been deposited in the glacier valley since the LGM. Using the coupled model and calculated bed topography, a 2.2°C temperature depression from the present is necessary to reproduce the Lateglacial ice extent, and 7.0°C is required for the early LGM, assuming presentday precipitation. The modelled Late-glacial ice extent is more sensitive to precipitation variability than that during the LGM, but the Tasman Glacier during both periods is primarily driven by temperature changes. While the Tasman Glacier shrank between the early and late LGM, modelling demonstrates that changes in bed topography due to erosion, transport and deposition of sediment are a major driver in reduction of glacier extent; a temperature increase of only 0.1°C is required to cause the transition between the two periods, which may be attributable to interannual, zero-trend climate variability. Thus, the consideration of the coupled glacier-sediment system is critical in accurately reconstructing past climate. Future work focusing on modelling this coupled system, such that the bed profile can evolve interactively with glacier flow, will be critical in better resolving transient events such as the early to late LGM transition.
Relating Neurochemical Changes Associated with THC Use to Learning and Memory in Adolescent Rats
Authors:   , Steel Ryan William Johnstone
Published: November 2021

Cannabis is the most widely used illicit drug. Adolescents may be especially vulnerable to the effects of cannabis, and alarmingly, adolescence is also a period of heavy cannabis use. However, few studies have investigated the cognitive effects of cannabis use in adolescents specifically. Furthermore, the neurochemical correlates of cognitive impairment associated with cannabis use at any age have received very little experimental attention. This research project sought to address these shortcomings in the literature using THC, the major psychoactive component of cannabis, and a rat model of adolescence. The rate of learning was slower in THC-treated animals, and this was attributable to deficits in the cognitive function of 'chunking', a process by which the information capacity of short-term memory is enlarged. Impairment of chunking by cannabinoids has not been previously reported. Behavioural impairment by THC was associated with impaired hippocampal plasticity, including changes in synaptic activity and architecture, as well as changes in neurogenesis. The attenuation of structural and functional plasticity in the hippocampus in response to training in a learning task was more pronounced than the subtle effects of THC-treatment on the survival and early development of newborn neurons. Importantly, no effects of THC were seen in animals not trained in the maze. Thus, plasticity is more sensitive to the effects of THC during times of learning, and this greater sensitivity likely accounts for the behavioural impairment associated with cannabis use. The data presented in this thesis add significantly to the existing literature by identifying novel behavioural and neurochemical processes by which cannabis use may impair learning and memory. Whether these impairments represent a greater sensitivity of adolescents to THC remains to be determined.
Development of Violence Across the Lifespan: A Preliminary Model
Authors:   , Van't Klooster Janneke
Published: November 2021

Violence has serious implications for both the victim and the wider community. The current adult rehabilitation programmes accept violent offenders ranged from 20 years and older. This age range could have serious rehabilitation consequences, as a twenty year olds violence and violence related goals may differ substantially to a 70 year old. For this reason an understanding of the development of violence and violence related goals can aide rehabilitation and punitive policies. A review of recent research highlights there are many methodological and empirical gaps in the development of violence whereby the current research aimed to assuage this issue. The current research used grounded theory to develop a model on the development of violence over the life-course. For this research twelve men currently incarcerated at Rimutaka Prison in a violence rehabilitation unit were interviewed. This method developed two models. The “Influences on violence development” model outlines how environment and personal choices had an impact on the development of violence. The “development of violence” model outlines the increasing severity and frequency of violence over time, and the increasing complexity of violence related goals. This model is nested within the influences on violence development model. Comparing the current models to Loeber et al's (1993) pathways model, and Sampson and Laub's life-course perspective on offending, has found support for both models. Thus this model's theoretical value lies within its ability to draw together other areas of research and provide a holistic understanding of both how and why violence develops. One implication of these models is the understanding of the varying influences of environment on violence, upon both different individuals and different ages. This implies that rehabilitation should perhaps follow a more individual based focus. There are many limitations to the research, the most salient one being lack of saturation in the model and low sample size.
A Theory of Human Flourishing for Company Decision-Making
Authors:   , Bårdsen Liina
Published: November 2021

Business is one engine of well-being, and the main engine of material well-being, in society. Companies produce goods and services that we would not be able to do without or that add comfort or pleasure to our lives, provide us with jobs, and help make our communities dynamic and lively. Still, businesses come increasingly under criticism for being the cause of many social, environmental and economic problems, and are often seen as prospering at the expense of individual people and the broader society. Also, as customers or employees of businesses, we are frequently dissatisfied with substandard product quality, unfriendly service, a work community in which not everyone is pulling in the same direction or leaders who do not inspire. We invest many resources and much energy and time in our roles that have to do with companies. In such a situation, it seems justified to ask whether businesses are fulfilling their potential, if viewed as agents of well-being. My thesis aims to be one contribution to the active academic, political and societal debate we have in the Western world on the appropriate evolution of businesses in the 2010s. Faced with intensifying competition from developing world produce, large private and public sector debts restricting consumption opportunities at home, and social and environmental concerns about ways companies operate, Western businesses are re-thinking their strategies. Many progressive companies are going even further and are revising their objectives in ways that challenge our traditional conception of what a business is, what it does and how.
Evaluating the Potential to Extract High-Resolution Paleoclimate Information from the Near-Shore New Zealand Molluscan Species Austrovenus stutchburyi
Authors:   , Orsman Jessica J.
Published: November 2021

Li, B, Mg, Al, Mn, Cu, Zn, As, Sr, Ba and U/Ca ratios were measured by laser ablation inductively coupled plasma mass spectrometry for 11 modern Austrovenus stutchburyi clams to assess the potential of this molluscan species as a proxy for paleo-ocean temperature and environmental change. A. stutchburyi is an intertidal, infaunal, bivalve, widespread in New Zealand coastal regions and throughout the Quaternary-Pliocene sedimentary rock record. Five individuals from Ligar Bay and Estuary (South Island, New Zealand) were analysed to evaluate the variability between individuals calcifying in similar environmental conditions. A further six individuals were sampled from a range of latitudes (38˚ to 40˚) in the North Island, New Zealand to evaluate variability between individuals from different environments. A strong positive correlation between growth rate and Mg, Al, Mn, Sr, Ba and U/Ca ratios was observed, and a marked negative correlation was found between the same trace element/Ca ratios and ontogenetic age as growth rates slow during the molluscs' life. Thus, biological effects are the primary influence on trace element incorporation in A. stutchburyi. No clear seasonal variations were observed in the Mg and Sr/Ca ratio profiles through A. stutchburyi shells representing time periods of several years. Furthermore, for two shells for which chronologies could be reliably constructed, there were no significant correlations between Mg and Sr/Ca ratios and sea surface temperature. When Mg/Ca ratios were normalised to Sr/Ca ratios in order to eliminate the growth rate effect on trace element incorporation into the mollusc shells, some of the remaining variations appeared to visually correlate positively with sea surface temperature in several sections of a shell. However, a quantitative correlation did not confirm this (r² = 0.012). It is likely that neither Mg nor Sr incorporation into A. stutchburyi shell are primarily thermodynamically controlled. Several coincident Ba/Ca peaks in two of the Ligar Bay shells are most likely caused by environmental processes such as short periods of phytoplankton blooms or elevated seawater Ba/Ca from river flooding. Mn/Ca and U/Ca variations in A. stutchburyi from different coastal sites with different sediment characteristics appeared to be linked to the redox conditions prevailing at an open ocean sand-dominated environment (Ligar Bay) versus tidal mud flat environments (e.g. Miranda). Thus, while A. stutchburyi is unlikely to be a useful archive for past coastal ocean temperatures, it holds considerable promise for tracking past changes in coastal ocean productivity and river run-off, as well as sediment redox conditions.
Obstacles and Obligations: Wind Energy and Migratory Bird Protection in New Zealand
Authors:   , Krimowa Symone
Published: November 2021

Wind farms create unique risks to birds because of the danger of the turbine blades, which can be up to 150 meters tall. Placement of wind farms in the wrong areas can have a detrimental impact on bird species. New Zealand’s commitment to renewable energy is shared with its obligations to protect biodiversity, which are reflected in the ratification of international conventions such as the Convention on Migratory Species and the Biodiversity Convention. Domestic legislation, such as the Resource Management Act 1991, seeks to enhance the development of alternative sources of energy with the intention of reducing the effects of climate change on the environment and conserving indigenous biodiversity. Migratory bird protection in the wind farm context in New Zealand relies upon environmental impact assessment under Schedule 4 of the Resource Management Act 1991. International obligations include protecting or endeavouring to protect 37 migratory bird species along their complete flight paths. The Resource Management Act 1991 does not meet international obligations to protect migratory birds in the wind farm consent process because (1) the assessment of environmental effects process fails to adequately identify effects on migratory birds; and (2) even if the assessment of environmental effects process adequately identifies effects on migratory birds, the RMA fails to give priority weight to effects on birds when it balances those effects with other factors in deciding to approve the wind farm application. Other countries provide guidance on the next steps for New Zealand to take to comply with its international obligations to migratory birds.
Young People and Desistance from Crime: Perspectives from New Zealand
Authors:   , Carpenter Craig
Published: November 2021

This thesis examines the process by which young people stop, or 'desist' from, criminal offending in New Zealand. It does so by presenting insights on desistance gained from observations and interviews with young ex-offenders and those who work closely with them. In doing so, it avoids the exaggerated responses to youth crime expressed in political rhetoric and the popular media, and instead focuses on factors that are deemed most valuable in desistance by those most involved. This primary research is presented in the context of the existing literature that establishes desistance as a process influenced by the interaction of multiple variables including individual, social, and structural factors. Analysis of structural factors highlights the need for young people, especially those who experience economic marginalisation or racial discrimination, to be provided with opportunities to change. While the current New Zealand youth justice system generally does well to limit the negative impact of formal system contact for young people, it is noted that the focus on individual plans and strategies fails to adequately address social relations and structural conditions that are integral to desistance processes. The results of this study show that young desisters have mainstream aspirations for stable employment and relationships. Key factors of desistance identified in this study include the influence of 'growing up', family support and positive relationships. In other words, desistance from crime was the result of moving towards something positive in life. It is therefore argued that desistance is also more likely to be sustained with ongoing personal and social support. Rather than being passive victims of structural inequalities, or completely rational actors, this study found young desisters to be influenced by a combination of structural, social and individual factors. The ultimate recommendation is to enhance existing policy through wider strategies that address structural issues, such as poverty and unemployment, together with the development of social and cultural capital, so that desistance processes can be further encouraged in New Zealand's young offenders.
A Study of University Students in Japan: Learning and Application of Academic English Writing
Authors:   , McKinley James Graham
Published: November 2021

This study investigated Japanese first and second year undergraduate students learning English academic writing in their compulsory English composition courses in a Japanese university. The thesis takes a social constructivist approach to investigate the aspects of critical argument and writer identity in these students’ classes and their writing.  The data for the study include classroom observations and teacher and student interviews, all conducted monthly throughout the academic year-long course. In total there were six courses, four teachers, and sixteen student participants. The observations were analyzed using an adapted version of Ivanič’s (2004) Discourses of Writing framework, which focused on aspects of identity construction in the writing classroom. The linguistic data included a selection of one major piece of writing from each student, analyzed using an adapted Appraisal framework within Systemic Functional Linguistics (Martin, 1997; 2000). In order to maintain a focus on writer identity in the analysis, Clark and Ivanič’s (1997) selves were identified through this analysis. In addition, the texts were analyzed for use of Casanave’s (2002) writing game strategies, in order to further establish the students’ approaches in writing their texts. The objective was not to generalize about how Japanese students learn to write academic English, but rather to provide, from a social constructivist, Western researcher’s perspective, an analysis of what happened in these students’ writing classes and how it affected their writing for those classes.  Teachers’ general practices in the observed courses mainly focused on two aspects of writing: 1) as a communicative act (writing for a reader), and 2) as an exercise in critical thinking (developing a thesis). These two aspects emerged from the observation and interview data collection. The four teachers used very different approaches in designing their courses, and the students in the same classes responded in different ways, mostly depending on their ability to understand their teachers’ intentions and to form appropriate academic identities in an attempt to meet their teachers’ expectations. The analysis of the students’ written texts revealed that students often did not meet the teachers’ expectations of writing objectively and using a genre-appropriate voice as students often resorted to the same authorial voice to push their thesis.  This investigation was designed to inform pedagogic practices for university teachers of academic English and curriculum designers in Japan to establish effective English writing courses. The rich description of classroom practices and resulting written texts and the focus on differences in cultural expectations between teachers and students provide significant contributions to this area of inquiry. The main pedagogical suggestions are standardizing course objectives and goals, assigning more reading as a part of writing, and teaching students how to write authoritatively.
Does Knowledge about Climate Change Predict Concern? Concern for Climate Change and the Knowledge-Deficit Theory
Authors:   , Cornforth Alana
Published: November 2021

The knowledge-deficit theory suggests that if people are not concerned about climate change, it is because there is a deficit in their knowledge of climate change—they do not properly comprehend the scientific consensus. So do people with higher levels of knowledge about climate change feel more concerned than those with lower knowledge levels? Existing research has been inconclusive but suggests differences between perceived and actual knowledge. This thesis comprises two studies. Study 1 tests the effect of perceived knowledge on concern for climate change with a nationally representative, randomly selected sample of 269 New Zealanders. Study 2 tests the effect of actual knowledge about climate change on concern with a sample of 452 New Zealanders recruited via snowball sampling. Results supported the knowledge-deficit theory for concern for climate change, but only when actual knowledge was tested. Participants in both Study 1 and Study 2 with high perceived knowledge did not have correspondingly high levels of concern, but Study 2 participants with high actual knowledge of climate change did also have high levels of concern. Other variables tested that consistently predicted high concern for climate change were perceived efficacy (the perception that one's actions will influence group outcomes) and environmental values. Demographic variables were not strong or consistent predictors of concern, but overall, younger female participants tended to display higher levels of concern than older male participants.
Academic Reading and Pacific Students: Profiling Texts, Tasks & Readers in the First Year of University in New Zealand
Authors:   , Toumu'a Mary Ruth
Published: November 2021

Central to tertiary study in the literate world is the storage, transmission and retrieval of knowledge via the written word through the complex, multi-faceted and largely invisible process of academic reading. With New Zealand's changing demographics and increasing participation in tertiary education by students of Pacific descent, it cannot be assumed that there is a sufficient degree of match between the cultures of academic literacy of the institution and those of the linguistic /ethnic minority student readers; and this is an issue that requires in-depth investigation. This thesis focuses on student readers of Pacific descent undertaking their first year of study in selected 100-level Humanities and Commerce courses in a NZ university. By drawing together the composite skills, cognitive and socio-cultural traditions of reading research, this study conceptualizes academic reading as the dynamic interplay between Text-Task-Reader within any given socio-cultural context. This three-part understanding of academic reading enables a rich profiling of Readers, Texts, and Tasks within their contexts. It permits the systematic discovery and documentation of the nature of the challenge inherent in the academic texts and tasks of the first year of university, and enables the characteristics of the prototypical 'good reader' in a specific discipline to be established. By identifying and holding the core first year academic reading Task of 'reading to understand and remember' constant, the complex interactions between the Reader and Text were able to be observed, thus providing insights into the ways in which these Pacific readers made meaning from Text. Then, through the holistic profiling of cognitive, affective, skills, and socio-culturally based reader features, the Pacific student readers' academic reading personae were constructed. Combined, the readers' profiles reveal group trends, and individually, the complete holistic profiles of two case study readers were able to be woven together from the various profiling 'strands', thus highlighting the usefulness of the profiling system and the uniqueness of the individual readers. Finally, a comparison between the 'good reader' and the 'real' student readers affords an understanding of the degree of 'fit' between the readers' characteristics and the expectations of the institution. It is argued that this type of holistic profiling is of considerable value to institutions, enabling them to respond in informed, strategic ways to the academic literacy development requirements of their Pacific (and other) students, on both an individual and group scale.
Performance Evaluation of Routing Metrics for Community Wireless Mesh Networks
Authors:   , Liu Nan
Published: November 2021

With the growth of different types of Internet traffic there is a compelling need to provide better quality of service, especially, over the increasing number of wireless networks. Expected Transmission Count (ETX) is a high throughput route selection metric that measures link loss ratios. ETX of a path reflects the total number of packet transmissions (including retransmission) required to successfully deliver a data packet along that path. Expected Transmission Time (ETT) is an improvement of ETX. ETT of a path is a measure of the transmission time needed to successfully deliver a packet along the path. ETT measures the loss ratio and the bandwidth of the link. Both, ETX and ETT, in comparison to hop count, provide better route selection for routing protocols widely used in Wireless Mesh Networks (WMNs). Using minimum hop count to find the shortest path has been shown to be inadequate for WMNs, as the selected routes often include the weakest links. This thesis presents a performance evaluation comparing hop count, ETX and ETT when used with the Optimized Link State Routing version 2 (OLSRv2) protocol. This study is based on the wireless mesh topology of a suburban residential area in New Zealand, and analyses the performance of three common Internet traffic types in terms of throughput, end-to-end delay, jitter and packet loss ratio, and presents findings that are closer to the perspective of what an enduser experiences. Also, a grid network of 121 nodes was used to analyze how the metrics choose paths, the performance changes (for different path lengths) and other conditions that affect the performance of the three metrics.
A Proteomic Analysis of the Effects of Yessotoxin and Di-Desulfoyessotoxin on Yeast and Mammalian Cells
Authors:   , Cordiner Sarah
Published: November 2021

Yessotoxin (YTX) is a disulfated polycyclic polyether, produced by dinoflagellate algae. It is known to accumulate in edible shellfish, raising concerns about its potential risk to human health. YTX was initially classified as a diarrhetic shellfish poisoning toxin, due to commonly being extracted alongside toxins of this variety. However, YTX does not induce any of the effects characteristic of this group. A separate category for YTXs was established by the European Commission in 2002 and a limit of 1 mg/kg of shellfish meat was established. YTX has been shown to be an apoptosis inducer in a variety of cell lines in vitro. It has also been shown to be lethal to mice when administered by intra-peritoneal injection. However, when administered orally only limited toxicity is observed. The di-desulfated derivative (dsYTX) has also been shown to be lethal to mice following intra-peritoneal injection. However it causes damage mainly to the liver, whereas YTX appears to target the heart. The mechanism of action of YTX is still unknown. The goals of this project were to use proteomic techniques, to examine the effects of YTX and dsYTX on Saccharomyces cerevisiae and human promyelocytic leukemic blood leukocyte (HL60) cells. Young et al. (2009) showed that the major proteins affected by YTX in HepG2 cells were heterogeneous ribonucleoproteins (hnRNPs), lamins, cathepsins and heat shock proteins. HnRNPs had not previously been identified as possible targets of YTX. Alterations of hnRNP levels were also seen in HL60 cells treated with microtubule stabilising agents, peloruside A or paclitaxel (Wilmes et al., 2011, 2012). No differences in cell morphology or significant changes in protein abundance were observed when S. cerevisiae cells were exposed to YTX. A small number of significant changes in abundance were detected when these cells were exposed to dsYTX. The small number of protein changes seen is possibly due to poor toxin entrance into the cell through the yeast cell wall, lack of protein targets structurally homologous to those found in mammalian cells, or fast removal of the toxin through export pumps. Twenty-four hour incubation of HL60 cells with YTX resulted in increased cell death but no change in cell morphology. Treatment with dsYTX caused cells to aggregate into clusters and a 24% decrease in the number of live cells. Increases were found in the abundance of β-actin, hnRNP A and BiP proteins in response to dsYTX treatment. Decreases in these proteins were seen in HepG2 cells treated with YTX for 24 hours. As seen in S. cerevisiae cells, dsYTX had a greater effect in HL60 cells compared with YTX. Overall, the results provide some support for the previously identified effect on hnRNPs in mammalian cells exposed to YTX.
Do You Have a "Strict Purse"? The Routes to Meaning in Metaphor
Authors:   , Stewart Jessie E.
Published: November 2021

Theoretically there are two processing systems through which meaning can be found for a given statement: an effortless, associative processing system (meaning retrieval), or an effortful, analytical processing system (meaning construction). The current study investigated whether or not the context in which target (loosely figurative) word-pairs are presented can influence whether a person relies on associative or analytical processing to find their meaning. Participants were presented with target (loosely figurative) novel word-pairs and asked to judge them for meaningfulness. These target novel word-pairs were presented in different contexts: either mixed with clearly meaningful word-pairs or with additional novel word-pairs. By nature, meaning cannot be retrieved for novel word-pairs, so if a novel word-pair is to be found "meaningful," then its meaning must usually be constructed online (via the analytical processing system). Consistent with increased reliance on analytical processing, participants who saw target novel word-pairs mixed with additional novel word-pairs judged them meaningful more often than did participants who saw them mixed with clearly meaningful word-pairs. Participants who saw target novel word-pairs mixed with additional novel word-pairs also had more negative N400s to target novel word-pairs, indicating that they committed more semantic effort to the processing of these (again consistent with analytical processing). Associative processing does not involve attempts to construct new meaning for given word-pairs. Consistent with increased reliance on associative processing, participants who saw target novel word-pairs mixed with clearly meaningful word-pairs judged them meaningful less often than did participants who saw them mixed with additional novel word-pairs. These participants also had less negative N400s to target novel word-pairs, indicating that they committed less semantic effort to the processing of these (again fitting with associative processing). Further evidence for different contexts leading to differential processing of the same target novel word-pairs was provided by examination of wave morphology. Two distinctive patterns of neural activation were found in response to the same target novel word-pairs, differing depending on the context in which these appeared. Overall, the results of the current study were consistent with the hypothesis that context can influence which processing system is relied upon to find meaning for a given statement. This finding challenges contemporary models of meaning construction and metaphor comprehension by showing that context is essential to these processes and needs to be taken into consideration.
Literature and Cognitive Science
Authors:   , Johnson Alex
Published: November 2021

The field of Literature and Cognitive Science is an emergent one. This thesis investigates ways in which knowledge generated about the brain and mind in the field of Literature can complement knowledge generated about the brain and mind in the field of Cognitive Science. The work of a representative selection of literary critics who identify themselves as working within and shaping the field of Literature and Cognitive Science will be examined, and the representation of brain-mind states in two contemporary novels, Haruki Murakami's Hard-Boiled Wonderland and the End of the World and Pat Cadigan's Tea from an Empty Cup, will be closely analysed. A principal aim of this investigation is to affirm the power of literary and literary critical texts as potent and relevant knowledge sources about the brain and mind that must be included in our understanding of cognition. In this respect it will support the position of those in the field of Literature and Cognitive Science who argue that knowledge created in the field of Literature can enrich the new understanding of human cognition being developed in the field of Cognitive Science.
How Does My Music Therapy Practice, in a Transition School Focused on Supporting Adolescents with Mental Health Needs, Relate to the Key Competencies of the New Zealand Curriculum?
Authors:   , Halligan Laura Joy
Published: November 2021

This exegesis outlines research about the way the key competencies of the New Zealand curriculum related to music therapy practice at a transition school for adolescents with mental health needs. Secondary analysis of data, informed by grounded theory methods, was carried out in order to develop a theory about the relationship between music therapy and the key competencies. The competencies, which are focused on supporting students to develop broad skills that will help them in their education and throughout their lives, guided all work with students at the school, including music therapy practice. While educative in nature, the competencies also seemed to have some naturally therapeutic purposes, and this study focused on understanding how they related to music therapy in practice. Data that had been collected in the natural environment of the school to meet the requirements of the placement as a student music therapist were analysed. The findings showed that there was a significant relationship between music therapy practice and the competencies. This contributed an additional perspective and dimension to the way the competencies could be addressed with students. In particular, music therapy provided students with opportunities to try out different ways of being with each other and supported them to experience feelings of hope and empowerment.
Finding a Place for Music Therapy Practice in a Hospital Child Development Service
Authors:   , McGann Helen Sian
Published: November 2021

This exegesis examines the beginnings of a music therapy practice at a hospital Child Development Service (CDS) in New Zealand, looking at the issues involved in setting up this practice during a student placement over a period nine months. The research is an exploratory case study (Yin 2009) which aims to identify issues through secondary analysis of clinical documentation, using thematic analysis to code and analyse the clinical data. Five core issues were revealed which included: working with team members, interacting with the children's family, issues in the implementation of the intervention, reflections on the student's experience and working within hospital policies and procedures. A case vignette is used to describe an example of arising issues and important factors when working with team members and family. The results of the study suggest that service development is a complex process, showing the importance of collaboration within the multidisciplinary team and involving family members in sessions. In terms of beginning a new music therapy practice in this specific setting, it was found that music therapy was filling a gap in what the child development team could provide. It was also found that there are several factors to consider when establishing a paid position within the service. It is important to create a balance between working within the medical framework philosophy of the hospital and providing a holistic and an empathetic level of care for the families. The project aims to inform other music therapy practitioners and students beginning or establishing work in new settings.
VJing: A New Zealand Case Study
Authors:   , Lamb Naomi
Published: November 2021

This thesis analyses some key factors of what is often considered a marginalised cultural and creative practice, VJing. The term VJ historically refers to Video Jockey, though in its own right VJ can be used to umbrella a number of various practices that utilise live visual media performances. This study is based on the researcher's active participation in the New Zealand (Kiwi) VJ scene for over thriteen years. Chapter One introduces some of the traditional principles and factors that are still in use in contemporary VJ practices, as well as the characteristics of the Kiwi VJ scene. Chapter Two outlines and analyses an experiment that takes these factors and characteristics into consideration. The case study utilises peer to peer information gathering through an experiment designed to generate a disruption to the intuitive mode of working to which four veteran VJs have been accustomed. The case study experiment sought to isolate key factors that impact on content creation and selection for live VJ mixing that utilise traditional principles. During the analysis, the following factors were identified: time, sight, memory, finance, environment, technology, availability, efficiency, compatibility, loops, silence, form, rhythm, movement, shape, colour and music. The experiment centred around a sample library of original content that the four VJs were asked to respond to, both through conversational dialogue and a live VJ performance. The DVD contains the results of the individual performances.
An Examination of the Chance Elements in Witold Lutosławski's Music, with Particular Attention to Its Function as a Model for Compositional Practice
Authors:   , Hextall Pieta
Published: November 2021

This thesis studies the use of aleatory techniques in Witold Lutosławski's music and the issues that arise when using aleatoricism, a branch of textural composition that has room for exploration. I focused my study on three of Lutosławski's major works, analysing his approach to aleatoricism, form, and macro- and micro-rhythm. I wrote three works for the portfolio component. My approach to aleatoricism differed in each work. Through studying Lutosławski and my own composition, I came across practical issues in creating the score, issues with performers, and compositional problems. However, once these issues were worked though, aleatoricism is a exciting compositional device that is not yet tired.