Dissolved organic matter (DOM) is the most dynamic and least understood part of the global oceanic carbon cycle. Furthermore the molecular composition of DOM is largely unknown. This study focused on the distribution pattern, removal processes and molecular characterisation of DOM in a range of estuaries and coastal zones in New Zealand. Doubtful Sound, the longest fjord in Fiordland National Park, South Island, New Zealand was of particular interest, because of the combination of extreme rainfall, enhanced production of DOM within the temperate rainforest which largely appears in the relatively deep ([greater than or equal to] 5 m) low salinity layer (LSL) at the fjord surface. A typical river estuary (Freshwater River) located in Stewart Island, New Zealand was also investigated. Optical water properties such as the UV/Vis absorption coefficient at 355 nm (a[CDOM](355)) and excitation-emission matrix fluorescence (EEM) were determined for samples from freshwater, across the LSL into open ocean water. These optical properties showed a marked decrease with salinity and highest levels of EEM fluorescence and a[CDOM] (355) in the brackish surface water. In addition to the observed changes in the optical properties, ultrahigh resolution Electrospray Ionisation Fourier Transform Ion Cyclotron Resonance Mass Spectrometry (ESI-FT-ICR-MS) determination of molecular formulae revealed that in the fjord about 20 % of these formulae changed along a vertical salinity gradient across the LSL between the brackish surface water and the saline water at 5 m depth. This trend was even more pronounced along the salinity gradient of the Fresh Water River Estuary in Stewart Island, where 60 % of all assigned molecular masses changed from freshwater over the mixing zone to ocean water. Associated with these changes was a marked increase in aromaticity with increasing salinity. Comparable behaviour with increasing salinity was also observed in estuarine samples from the Cape Fear River system, North Carolina, USA. In contrast, only minor changes were determined in molecular formulae for surface water samples collected along a transect off the Otago Coast and across the Subtropical Convergence (STC) into Subantarctic Water (SAW). However, a comparison of the molecular formulae assigned to the DOM pool for the STC water and a freshwater stream in Doubtful Sound, revealed that 75 % of all the assigned formulae for the open ocean sample were common to these two markedly different types of natural waters. This seemingly refractory DOM contained nearly 600 assigned molecular formulae, which were all very similar (only spaced by two hydrogen and CH₂ groups) and could be explained with only 9 general molecular formulae. However, the comparison of all assigned formulae for the freshwater sample suggested that about 90 % of the assigned molecular formulae for the terrestrially-derived DOM changed as it moved from rivers to the open ocean and that only 10 % remained the same. Singlet oxygen showed a very close relationship with the optical properties such as the absorption coefficients (a[CDOM](355)) and the EEM fluorescence intensities and these results suggested that singlet oxygen steady state concentrations are linked to CDOM. Photodegradation processes were confirmed to be responsible for a significant destruction of CDOM. Samples collected from different salinity waters showed major differences in wavelength-dependent photo-decay of CDOM suggesting that the rate of photodegradation in the UV range decreased with increase in salinity whereas it was enhanced for longer wavelength radiation ([greater than or equal to]400 nm). Additionally, the predominantly unsaturated compounds produced during estuarine mixing were found to be highly photolabile and were either destroyed or new unsaturated compounds were produced within 21 h of solar irradiation.

Are there policy markets in Australia, and if so, how do they operate? This is the core question for this dissertation. Beginning with a focus on this simple formulation of the problem, the thesis explores the idea of policy markets, breaking it down into its constituent parts��policy� and �markets��and develops four different ways in which policy markets (i.e. markets for policy analysis, research and advice) might be modeled: 1. the dimensions of knowledge, values and competition in policy development systems and processes; 2. a hierarchy of policy markets according to strategic, programmatic and operational concerns; 3. policy markets in the context of cyclical process models of policy-making, especially the variant posited by Bridgman and Davis (1998); and 4. a typology of policy markets ranging from �pseudo� forms through to a form of full (or �pure�) policy market. Against the background of this theory-building, the empirical evidence�which was gathered through a combination of documentary investigation and some 77 interviews with senior public servants, consultants and ministers�is addressed through three interrelated approaches: an analysis of the (relatively limited) government-wide data; a comparison of this material with experience in New Zealand; and a set of three extended case studies. The three case studies address the idea and experience of policy markets from the point of view of: � the supplier�in this case, the economic forecasting and analysis firm, Access Economics; � ministers-as-buyers�through a study of the Coalition Government�s 1998 efforts to reform the waterfront; and � the bureaucracy as implementers of an extensive program of outsourcing�through a detailed examination of the outsourcing of corporate services (especially human resource management) by the Department of Finance and Administration. Several conclusions are drawn as to the character, extent and theoretical and practical significance of policy markets in Australia. While various elements of actual markets (e.g. contracts, price and service competition, multiple sources of supply, etc.) can be detected in the Australian approach to policy-making, policy markets are not as prevalent or as consistent as the rhetoric might suggest. In particular, while the language of the market is a common feature throughout the Australian policy-making system, it tends to mask a complex, �mixed economy�, whereby there is a continued preference for many of the mechanisms of bureaucratic ways of organising for policy analysis, combined with a growing challenge from various forms of networks, which are sometimes �dressed� as markets but retain the essential elements of policy (or, perhaps more particularly, political) networks. Nevertheless, the growing use of the language and some of the forms of the market in Australia�s policy-making system suggests that practitioners and researchers need to take this form into account when considering ways of organising (in the case of practitioners) or ways of studying (for researchers) policy development in Australia.

This dissertation is an account of an internship in paper conservation undertaken at the Auckland City Art Gallery during the period July 1982 to March 1983. It opens with a description of the organisation and functions of the gallery, with particular reference to its management, staffing, financing, displays and acquisition procedures. This is followed, in Part 2, by a general account of the conservation department, its history, staffing, laboratory and tasks. Part 3 details all the conservation work undertaken during the period of internship. It describes the various techniques and procedures employed and the results achieved or observed. It contains a list of 119 objects treated followed by 26 case studies to illustrate the problems encountered and the action taken. It also includes a list of the equipment and materials used. Set out in Part 4 are details of conservation laboratories visited in Wellington. Part 5, after a brief description of conservation services in Christchurch and Dunedin, details the activities of the Interim Committee for the Conservation of Cultural Property and the principal recommendations contained in a report submitted by Dr Nathan Stolow, a conservation consultant engaged by the Interim Committee. This is followed by a report on the New Zealand Conservators' Meeting which took place in Wellington in March 1983.

The study explores what shapes decision-making in governance in the New Zealand public healthcare services. It contributes to the understanding of the impact of the beliefs, perceptions and roles of the decision-makers and the tensions in public healthcare services in New Zealand. The focus was on ascertaining the characteristics of the people as individuals and as members of groups, their skills, preparation and the experience required to make governance decisions in healthcare services in New Zealand. The research analysed data from interviews with individuals in senior positions in public healthcare services in New Zealand, focus groups made up from those individuals and observations of formal District Health Board (DHB) meetings. The context for the study is the New Zealand public healthcare services within the DHB model. This study focuses on the organisational and operational aspects of governance from the socio-anthropological viewpoint of Pierre Bourdieu. Bourdieu’s methodology was chosen as it highlights the interaction of power and the management of tension between individuals and groups in different, but abutting, fields of practice. Using Bourdieu’s methodology the researcher has placed healthcare services in an economy of political power where the capital individuals and groups bring to an environment is demonstrated through their power and influence within a particular field of practice. In this study the field of practice is governance in New Zealand public healthcare services. The method involved purposive sampling of participants from three DHBs. The participants included appointed and elected members, chairmen, chief executives and senior clinicians from medical and nursing cohorts. The participants identified 22 abstracts which determined the shape of their decision-making. Through analysis and reflection these 22 determinants were organised into groups reflecting the generic principles of governance identified in the literature. The study concludes that decision-making in governance is shaped by the concepts of professional maturity, quality and safety, power and tension and fiduciary duty within the context of structure and time. The scope of governance is connected across healthcare organisations by the tension of power manifested through the capital individuals and groups bring to the interaction or field of practice. The study also found that there are two aspects to decision-making in governance which allow transferability of the concepts of governance across healthcare service organisations. Firstly, governance is decision-making in good faith with independence of mind and with the appropriate skills, diligence and care on behalf of others. Secondly, the structures of governance operationalised in audit, laws, guidelines, codes and principles support the decision-making on behalf of others. Consequently, the rules of decision-making in governance in healthcare services are the same whether the decision is being made in a clinical or corporate environment. They are enacted differently because of the different contexts. The study brings together the determinants in their concept groups into a framework in the context of structure and time. Use of the framework will enable those with governance responsibilities to shape their governance decision-making from an informed and common base which recognises the tensions in the field of healthcare services governance.

The bottlenose dolphins of Fiordland, New Zealand, live at the southern limit of the species' worldwide range. They are exposed to impacts from tourism and habitat modification, particularly in Doubtful Sound, and their conservation requirements are presently unclear. Dolphin abundance was estimated in Doubtful Sound using photo-identification census and capture-recapture techniques (56 individuals; 95% CI: 55-57), detecting a decline of 34-39% over 12 years among adults and sub-adults (>3 years old). The cause of this decline was investigated via demographic modelling in Doubtful Sound and a comparative assessment of population status in Dusky Sound. Capture-recapture modelling of photo-identification data compiled since 1990 yielded a constant adult survival rate marginally lower than prior estimates for wild bottlenose dolphins ([phi]a(1990-2008) = 0.9374; 95% CI: 0.9170-0.9530). Survival of calves (<1 year old) declined to an unsustainable level that is thought to be the lowest recorded for wild bottlenose dolphins ([phi]c(2002-2008) = 0.3750; 95% CI: 0.2080-0.5782) coincident with the opening of a second tailrace tunnel for a hydroelectric power station. Reverse-time capture-recapture modelling detected declines in recruitment (f(1994-2008) = 0.0249; 95% CI: 0.0174-0.0324) and population growth ([lambda](1994-2008) = 0.9650; 95% CI: 0.9554-0.9746) over time consistent with the decline in calf survival (<1 year old) and a separate reduction in juvenile survival (1 to 3 years old) reflecting cumulative impacts. Dolphin abundance was estimated in Dusky Sound using photo-identification census and capture-recapture techniques (102 individuals, 95% CI: 100-104) providing no evidence of interchange with Doubtful Sound. A comparative assessment of health status between Doubtful and Dusky Sounds revealed skin lesioning was more severe in Doubtful Sound, particularly among females, and newborn calves appeared to be smaller and were born over a shorter period: factors that may contribute to the low levels of calf survival in Doubtful Sound. The Fiordland bottlenose dolphins were assessed under IUCN Red List regional criteria. The small size of the population (205 individuals, 95% CI: 192-219) combined with the projected rate of decline in stochastic matrix models (average decline 31.4% over one generation) resulted in a recommended classification of Critically Endangered.

This thesis aims to identify the motivating factors driving consumers home purchase decisions from the consumer's point of view. Although there is an abundance of past real estate research, dating back as far as the 1920's, the factors shaping consumers home choice have not been fully explored. Past research has tended to assume that homebuyers arrive at a decision following a logical and rational decision making process. These studies have also tended to focus on utilitarian or economic factors shaping home choice. Although past research has unquestionably added to the understanding of home purchase behaviour, the focus on utilitarian and economic factors does not explain decisions that are underpinned by deep-seated motives. The present thesis extends past research by exploring the less tangible, non-economic aspects of home choice in order to provide a fuller story of why and how people consume homes. The primary aim of this study was to investigate the unsolicited motives underlying consumers' home choices, therefore, a qualitative technique known as ZMET was employed. Based on the notion of unconscious thoughts, ZMET uses visual images gathered and/or generated by consumers to elicit and probe the metaphors that represent their thoughts and feelings. For the present study, 14 consumers who had recently placed an offer on a home took part in the ZMET interview. The present methodology extends past property research which has predominantly taken a quantitative approach. The findings of the study provide a rich insight into the motivations behind consumer home choice. Firstly, it reveals that the pre-purchase checklists used by many homebuyers and real estate agents are inaccurate representation of consumer home choice, and explains why this is so. Secondly, it demonstrates the influence of twenty four motives, including three central constructs (space, nature and views) on consumer home choice and highlights the fact that autobiographical memories underpins many of the motives to impact on choice. Thirdly, it provides a model mapping out the interaction between utilitarian and hedonic motives, which evokes a network of feelings, sensations and emotions that shape consumer home choice. In doing so, the research provides theoretical insight into the link between the rational information-processing model and the experiential view of hedonic consumption in home purchases. This study has shown that a specific set of utilitarian and deep-seated hedonic factors interrelate to culminate upon one's home choice. The findings in this study maintain that while utilitarian factors are significant determinants of home choice, in themselves, they do not always tell the whole story. This new knowledge of how and why homebuyers chose what they did is valuable to practitioners in predicting accurate property demands and value. Real estate agents can-sell more effectively by matching a property to a homebuyer's hedonic needs. The information in this study also helps homebuyers understand that their home choice is guided by internal images and deep-seated motives derived from many years of past experience but more importantly, they can decide if these motives justify the price they pay for the property. Finally, the model gives future researchers a new framework to access meanings necessary for understanding homebuyer choice and allows a closer examination of the mechanics of these influences on the housing market and its demands.

This thesis takes the position that firm performance is derived from the value embodied by combinations of distinct socio-cultural resources and capabilities. In particular, this thesis explores practice in the context of Maori business to understand the mutual influences between economic exchange and social-cultural structures in terms of achieving improved firm performance. I begin by suggesting that much of the knowledge development and community practice in organisational analysis is subsumed within a Kuhnian conventionalism, which is not useful to gaining a deeper understanding of firm performance. I argue that what is required is an approach that emphasises the contextual development of society and organisation (embodied by social and cultural relations). This brings to the fore the pragmatist epistemology of practical knowledge, an approach to research and analysis of organisations that is at the heart of this research. Practical knowledge connects to the pragmatic orientation of Indigenous logics in this instance kaupapa Maori, which draws us to a perspective of knowledge that is experiential, contextual, diverse and inclusive. The effectiveness of a practical knowledge perspective by means of its pragmatic epistemology allows us to understand Maori businesses operating within a distinctive frame of socio-economic rationality providing a broader utility leading to culturally constituted forms of practice. It was through this lens that I engaged with the proposition regarding firm performance prompting us to look at the field of leadership (habitus), exchange (inter-capital exchange) and relationships (field) in particular. A major emphasis was a search for an appropriate method that would provide an avenue of authentic engagement with the cultural context embodied by kaupapa Maori. In terms of empirical investigation this thesis advances the utility of narrative as an expository technique and interpretive device that accords full recognition of Maori socio-cultural systems of relationships, historic circumstances and current practices. Conducted over three years (December 2004 and June 2006), the fieldwork component involved multiple strands of narrative in the form of dialogue, stories,metaphors, documentation and experiences of myself, other individuals and Maori economic development hui, or gathering. A key finding of this thesis is that kaupapa Maori as expressed through business practice offers a practical utility in relation to the capability of and potential outcomes for improved firm performance. I argue that there are unique characteristics of Maori business practice, which are grounded in the epistemological stance of kaupapa Maori in combination with Western philosophies and techniques of organisation that contribute to the performance of Maori businesses. In addition, I argue that it offers a view of the organisation as something beyond a disembodied system of market exchange and recognises the embeddedness of social processes in each culture will bring specific cultural nuances to the formulation of what constitutes organisational success. Finally, I suggest that kaupapa Maori research, grounded by the epistemological and ontological assumptions of an Indigenous paradigm provides opportunities for gaining greater insight into the dynamics of organisation and management research.

This thesis examines the professional knowledge of new secondary school teachers in New Zealand, their negotiation of multiple discourses encountered in policy and practice, and their processes of professional identity formation. It is also a study of policy reform. In New Zealand, as elsewhere, recent educational and social reforms have brought about major changes to the way education is managed and implemented. These reforms emphasise market ideologies promoting consumer choice and responsibility, while measuring and monitoring quality and effectiveness. At the same time, the reforms attempt to alleviate social inequality. Teachers' negotiation of an accountability culture and the dominant equity policies is a major focus of this study. The study draws upon group interviews held with nine new teachers during the first two years of their teaching careers. The group interviews were designed to elicit extended narratives from individual teachers, as well as promote more interactive dialogue and reflections within the groups. Because the interviews were conducted at different points in their early careers, the study also has a longitudinal element, allowing insight into how teachers' views are formed or changed during an intense period of professional learning. Analysis of the teachers' narratives is informed by poststructural and feminist understandings of identity and knowledge and by a methodological orientation to writing as a method of enquiry. The thesis develops three main types of discussion and sets of arguments. The first examines new teachers' negotiation of the 'macro' context of teacher knowledge formation that is, their negotiation of an educational policy environment that juxtaposes an equity agenda with accountability controls. In order to historically situate these dilemmas, the particular political, social and educational context of New Zealand is examined. It is argued that teachers negotiate competing political and conceptual debates about social justice, equity and difference, and that this negotiation is central to the formation of professional knowledge. The analysis illustrates ways in which teachers make sense of equity discourses in educational policy and practice, and the apparent contradictions that arise from placing tight accountability standards on schools and teachers to achieve associated equity goals. The second type of discussion focuses on teachers' negotiation of the 'micro' dimension of professional knowledge, looking closely at the processes and practices that form professional identity. Against stage or developmental models of teacher identity, it is argued that professional identity is formed in an ongoing, uneven and fluid manner and is socially and discursively situated/embedded. It is further argued that professional knowledge and identity are entwined and that this relationship is most usefully understood through analysis of the discursive practices that frame teachers' working lives and through which teachers work out who they are or should become and what and how they (should) think. This analysis contributes new perspectives to debates in teacher education about teacher preparation and the knowledge required of teachers in current 'new times'. The final cluster of arguments brings together these macro and micro aspects of professional knowledge and identity with a case study of how new teachers negotiated a recent educational reform of senior secondary school qualifications in New Zealand. This reform has had a significant impact on secondary schools and on the way teachers, and New Zealanders in general, think about education, achievement and success. It was found that this reform significantly challenged new teachers to question their beliefs about assessment and justice in education, and what counts as success. This case study draws attention to the tensions between equity, academic excellence and standards-based assessment, and contributes to understanding how teacher professional knowledge forms both in the context of a specific educational policy reform and in relation to educational reform in general. This study contributes new knowledge to the formation of teacher professional knowledge and identity in an educational climate of change in New Zealand. The findings offer new insights for teacher educators, policymakers and schools into how teachers build, shape and sustain professional knowledge; how they juggle contradictions between a desire for justice, policy imperatives and teacher education rhetoric; the self-constructed, but contingent nature of professional knowledge and identity; and the urgency to address identity formation as part of teacher education and to take account of the dynamic ways in which identities form. These matters need to be articulated in teacher education both pre-service and in-service in order to address teacher retention and satisfaction, and teachers' commitment to equity reform in education.

Thesis (M.Comp.)--Unitec New Zealand, 2007. / Includes bibliographical references (leaves 202-229).

Tongan migrants migrated to New Zealand with specific purposes in mind. One purpose is for Tongan children to gain the benefits of good education that New Zealand has to offer. However, there is a growing concern for Tongan parents and New Zealand teachers and schools about the quality and impact of education Tongan children receive. The study is titled, “Talanoa: A contribution to the teaching and learning of Tongan Primary School children in New Zealand” centres on Tongan parents who are recent migrants from Tonga and have primary school children. The research focuses on alternative approach in teaching and learning pedagogies of Tongan children in New Zealand. The research approach is drawn from Tongan language and cultural practices called talanoa, a communal act of social, political and critical dialogue for a purpose. The methodology is qualitative in design, drawing extensively from Tongan language and culture to research the koloa (values) of talanoa that Tongan parents practise at home. The method of data collection employed is talanoa (critical dialogue) conducted in groups with Tongan parents to capture their perceptions, views and experiences of talanoa in their various homes. In examining this unique context, data is analysed using the Tongan concept koloa. The values of talanoa when explored from the participant’s perspective are more clearly understood. The findings of the study indicate that Tongan migrants’ home practice of talanoa offers a teaching and learning pedagogy which is valued as a best approach in teaching their children. The findings further indicate that talanoa can be extended beyond the homes and into many classroom environments.