Larval settlement of the tropical abalone, Haliotis asinina Linnaeus, using natural and artificial chemical inducers

Many kinds of chemical and biological materials have been used as inducers of settlement of abalone larvae, as well as other species of marine gastropods, with responses being highly variable, even to the same chemical cue. The present study tested chemical inducers, γ-aminobutyric acid (GABA), δ-aminovaleric acid (5-AVA) and l-glutamic acid (GA) and the effects they have on larval settlement of Haliotis asinina. Additionally, a relatively inexpensive commercial substance, monosodium glutamate (MSG), was trialed. The datum provided shows all chemicals to be active inducers of settlement in this study, in order of effectiveness of 5-AVA, GABA, MSG to GA. Induction as adjudged from larval numbers settled was best at 6 h 62%, with 10⁻¹ mM 5-AVA. At 24 h, induction was the highest at 78% when exposed to 10⁻² mM 5-AVA. Larvae that were allowed to settle up to 72 h showed the highest numbers of settled larvae, and declined back to 60% when exposed to 10⁻² 5-AVA and 10⁻¹ mM GABA respectively. Monosodium glutamate, although third in settlement standings would bypass the other chemicals, with regard to cost versus yield. The assessment of settlement surface, rough or smooth proved to be irrelevant, which had no significant impact on larval settlement.

Corporate governance, board responsibilities and financial performance : the National Bank of Australia

This paper examines board responsibilities and accountability by management and Board of Directors in relation to the National Australia Bank's (NABs) performance. The NAB, an international financial service provider within the top thirty most profitable banks in the world, is compared with the Australian major banks. The evidence suggests that NABs poor performance was consistent with a lack of accountability, poor corporate governance and board dysfunction associated with fraudulent currency trading and the subsequent AUD360 million foreign currency losses. The NAB's performance is investigated by utilising accounting-based measures of profitability and cost efficiency as proxies for performance. Following the foreign currency trading losses in 2004 the NAB under-performed the other major Australian banks in terms of profits, cost to income ratio and growth in assets. In terms of profitability and cost efficiency NAB had the lowest ROE and ROA with a 19.7% fall in net profit and the highest cost to income ratio of 5 7.4% of any of the five largest banks. This case study provides an Australian example of poor corporate governance and suggests that financial institutions and regulators can learn from the NAB's experience. Failure to have top-down accountability can have significant impact on over-all performance, profitability and reputation. In particular, it suggests that management and Boards need to review their risk management procedures and regulators need to be more pro-active in their prudential oversight of financial institutions.

Effects of tv time and other sedentary pursuits

Television (TV) viewing is the dominant recreational pastime at all ages, especially for children and adolescents. Many studies have shown that higher TV viewing hours are associated with higher body mass index (BMI), lower levels of fitness and higher blood cholesterol levels. Although the effect size estimated from observational studies is small (with TV viewing explaining very little of the variance in BMI), the results of intervention studies show large effect sizes. The potential mediators of the effect of higher TV viewing on higher BMI include less time for physical activity, reduced resting metabolic rate (for which there is little supporting evidence) and increased energy intake (from more eating while watching TV and a greater exposure to marketing of energy dense foods). Electronic games may have an effect on unhealthy weight gain, but are less related to increased energy intake and their usage is relatively new, making effect size difficult to determine. Thus, TV viewing does not explain much of the differences in body size between individuals or the rise in obesity over time, perhaps because of the uniformly high, but relatively stable, TV viewing hours. Reducing TV viewing hours is a difficult prospect because potential actions, such as social marketing and education, are likely to be relatively weak interventions, although the evidence would suggest that, if viewing could be reduced, it could have a significant impact on reducing obesity prevalence. Regulations to reduce the heavy marketing of energy dense foods and beverages on TV may be the most effective public health measure available to minimize the impact of TV viewing on unhealthy weight gain.

Incorporating track records of agents into matchmaking in middle agents

Middle agents play a very important role in multiagent systems used in open and dynamic environments. The performance of middle agents relies heavily on the matchmaking algorithms used. The actual performance of provider agents in accomplishing delegated tasks has a significant impact on the matchmaking outcomes of middle agents. With those observations in mind, this paper discusses the incorporation of the track records of agents in accomplishing delegated tasks into the matchmaking process. How to provide initial values for track records in the algorithm are detailed. A prototype is also built to verify the algorithm. Based on the improved algorithm, the matchmaking outcomes are more accurate and reasonable.

Why do medical graduates choose rural careers?

Introduction: This study is based on the metaphor of the ‘rural pipeline’ into medical practice. The four stages of the rural
pipeline are: (1) contact between rural secondary schools and the medical profession; (2) selection of rural students into medical
programs; (3) rural exposure during medical training; and (4) measures to address retention of the rural medical workforce.
Methods: Using the rural pipeline template we conducted a literature review, analysed the selection methods of Australian
graduate entry medical schools and interviewed 17 interns about their medical career aspirations.
Results: Literature review: The literature was reviewed to assess the effectiveness of selection practices to predict successful
gradation and the impact of rural pipeline components on eventual rural practice. Undergraduate academic performance is the
strongest predictor of medical course academic performance. The predictive power of interviews is modest. There are limited data
on the predictive power of other measures of non-cognitive performance or the content of the undergraduate degree. Prior rural
residence is the strongest predictor of choice of a rural career but extended rural exposure during medical training also has a
significant impact. The most significant influencing factors are: professional support at national, state and local levels; career
pathway opportunities; contentedness of the practitioner’s spouse in rural communities; preparedness to adopt a rural lifestyle;
educational opportunities for children; and proximity to extended family and social circle. Analysis of selection methods: Staff
involved in student selection into 9 Australian graduate entry medical schools were interviewed. Four themes were identified:
(1) rurality as a factor in student selection; (2) rurality as a factor in student selection interviews; (3) rural representation on student
selection interview panels; (4) rural experience during the medical course. Interns’ career intentions: Three themes were identified:
(1) the efficacy of the rural pipeline; (2) community connectedness through the rural pipeline; (3) impediments to the effect of the
rural pipeline, the most significant being a partner who was not committed to rural life
Conclusion: Based on the literature review and interviews, 11 strategies are suggested to increase the number of graduates
choosing a career in rural medicine, and one strategy for maintaining practitioners in rural health settings after graduation.

Cortical and trabecular bone at the forearm show different adaptation patterns in response to tennis playing

Bone responds to impact-loading activity by increasing its size and/or density. The aim of this study was to compare the magnitude and modality of the bone response between cortical and trabecular bone in the forearms of tennis players. Bone area, bone mineral content (BMC), and bone mineral density (BMD) of the ulna and radius were measured by dual-energy X-ray absorptiometry (DXA) in 57 players (24.5 ± 5.7 yr old), at three sites: the ultradistal region (50% trabecular bone), the mid-distal regions, and third-distal (mainly cortical bone). At the ultradistal radius, the side-to-side difference in BMD was larger than in bone area (8.4 ± 5.2% and 4.9 ± 4.0%, respectively, p < 0.01). In the cortical sites, the asymmetry was lower (p < 0.01) in BMD than in bone area (mid-distal radius: 4.0 ± 4.3% vs 11.7 ± 6.8%; third-distal radius: 5.0 ± 4.8% vs 8.4 ± 6.2%). The asymmetry in bone area explained 33% of the variance of the asymmetry in BMC at the ultradistal radius, 66% at the mid-distal radius, and 53% at the third-distal radius. The ulna displayed similar results. Cortical and trabecular bone seem to respond differently to mechanical loading. The first one mainly increases its size, whereas the second one preferentially increases its density.

Short-term and long-term site-specific effects of tennis playing on trabecular and cortical bone at the distal radius

Mechanical loading during growth magnifies the normal increase in bone diameter occurring in long bone shafts, but the response to loading in long bone ends remains unclear. The aim of the study was to investigate the effects of tennis playing during growth at the distal radius, comparing the bone response at trabecular and cortical skeletal sites. The influence of training duration was examined by studying bone response in short-term (children) and long-term (young adults) perspectives. Bone area, bone mineral content (BMC), and bone mineral density (BMD) of the radius were measured by DXA in 28 young (11.6 ± 1.4 years old) and 47 adult tennis players (22.3 ± 2.7 years old), and 70 age-matched controls (12 children, 58 adults) at three sites: the ultradistal region (trabecular), the mid-distal region, and the third-distal region (cortical). At the ultradistal radius, young and adult tennis players displayed similar side-to-side differences, the asymmetry in BMC reaching 16.3% and 13.8%, respectively (P < 0.0001). At the mid- and third-distal radius, the asymmetry was much greater in adults than in children (P < 0.0001) for all the bone parameters (mid-distal radius, +6.6% versus +15.6%; third-distal radius, +6.9% versus +13.3%, for BMC). Epiphyseal bone enduring longitudinal growth showed a great capacity to respond to mechanical loading in children. Prolonging tennis playing into adulthood was associated with further increase in bone mineralization at diaphyseal skeletal sites. These findings illustrate the benefits of practicing impact-loading sports during growth and maintaining physical activity into adulthood to enhance bone mass accrual and prevent fractures later in life.

Habitus shock : a model for architect-client relationships on house projects based on sociological and psychological perspectives

The widening gap between architects and clients and the associated problems in the management of their relationship have long been recognised by practitioners and researchers alike. An emerging trend in recent studies is to develop descriptive models to describe behavioural characteristics of relationships based on observations of ' real world' practice, indicating the significance of understanding the complexities of the social environment in which the architect-client relationship is within. This research built upon the work of past descriptive models by exploring the architect-client relationship on house projects with a focus on the client's voice. It is an interdisciplinary study drawing theory from sociology to further understand this built environment industry problem. Sixty-nine percent of architects in Australia spend some of their work time on house projects and therefore improvements in this area can have significant impact on a considerably large portion of the profession. Habitus theory borrowed from sociology explains that the nature of architecture as a specialised activity places architects within an architectural habitus, distinguishing them from clients who are .not trained in the field. An underlying premise of thi s study is that a mismatch between the architect and client's habituses occurs as they enter into a relationship on the house project. This phenomenon is termed habitus shock, referring to the client 's experience of disorientation as they are confronted with an unfamiliar architectural habitus on the project. Culture shock theory is examined for its contribution to explain the process to which the client adjusts to the unfamiliar environment during habitus shock. The habitus shock model proposed in this paper suggests that the client may achieve learning during habitus shock and it is this client learning that can lead to successful relationships.

Practitioner perceptions of sustainability in the Building Code of Australia

Buildings have a significant impact on environmental quality, resource use, human health and productivity. One definition of sustainable building is that which meets current building needs and reduces impacts on future generations by integrating building materials and methods that promote environmental quality, economic vitality, and social benefit’ (City of Seattle, 2006). In response to a changing view of
sustainability the Building Code of Australia (BCA) adopted energy measures in 2005 to residential buildings and, in 2006, to Class 1 – 9 buildings. In many respects the measures represented a watershed for the Australian Building Regulations which had not included sustainability within the BCA. The goals of the BCA are to enable the achievement and maintenance of acceptable standards of structural sufficiency, safety (including safety from fire), health and amenity for the benefit of the community now and in the future (ABCB, 2004a). As with any change some Building Surveyors and construction practitioners viewed these measures with apprehension. How would the measures be assessed? Furthermore, was the BCA the appropriate place for these measures and was this a broadening of the scope of the building regulations beyond
its traditional remit of health and life safety in buildings? This research used a questionnaire survey the canvass the views and perceptions of Building Surveyors and Architects with regards to sustainability and the BCA in 2006.

Women's cognitive and emotional processing during sexual arousal : the effects of erotic film and absorption

Sexual arousal is a complex and dynamic element of women’s sexuality. Accounts vary, however most multidimensional models highlight the cognitive, affective and physiological components of the female sexual arousal response. While literature examining the peripheral physiological changes that occur during female sexual arousal abounds, there has been a dearth of literature pertaining to the cognitive and affective components. Thus, while many authors have included cognitive and emotions as independent components of the female sexual arousal response, there has been little empirical research to validate this approach. The aim of the current thesis was to examine the cognitive and affective components of female sexual arousal in more depth, investigating the nature of the relationship between these components under various experimental conditions. In order to do so, two integrated studies were conducted, each highlighting the effects of either external or internal variables on women’s subjective sexual arousal, absorption, positive affect and negative affect. Study One was designed to evaluate women’s emotional and cognitive processing of two elements of erotic film – foreplay and erotic context. 60 women were asked to report their subjective sexual arousal, absorption, positive affect and negative affect in response to one of four erotic film excerpts. The erotic excerpts varied in accordance with the degree of foreplay (low vs. high) depicted and the context in which the sexual activities took place (novel vs. habitual context). Women in the study responded more favourably to the high foreplay erotic film excerpt, subsequently reporting higher degrees of subjective sexual arousal, absorption and positive affect. Women also responded favourably to the erotic excerpt filmed in a novel context, reporting greater subjective sexual arousal as a result. The environment in which the sexual encounters were filmed failed to have an effect however, on women’s absorption or their positive or negative affect. The results of Study One suggest that stimulus specific variables, such as the degree of foreplay depicted, have a significant influence on female cognitive and emotional processing of erotic film. The results also suggest that a relationship exists between absorption, subjective sexual arousal and positive affect, albeit a correlational one. Specifically, there was evidence of parallel processing during sexual arousal, as participant reported sexual arousal, absorption and positive affect all increased and decreased in unison. Based on the results it was suggested that future research attempt to experimentally manipulate one of these variables, to examine its direct effect on the remaining variable. Thus, Study Two aimed to examine the effects of absorption on women’s cognitive and emotional processing of erotica. Study Two manipulated absorption at two levels (high vs. low), examining the impact of these states on participants’ subsequent absorption, subjective sexual arousal and positive and negative affect. 62 women were asked to read one of two sets of test session instructions. The first, participant-oriented instruction set, instructed participants to immerse themselves in the erotic film excerpt, as if they were active participants in the sexual exchange. The second, spectator-oriented instruction set, directed participants to observe and evaluate the erotic film. These instructions were designed to elicit high and low degrees of absorption, respectively. The utility of this approach when manipulating female absorption, was demonstrated by self reported ratings of absorption, given at the conclusion of the film presentation. Participants were also asked to report their subjective sexual arousal and positive and negative affect at the conclusion of the erotic film presentation. The findings of this study suggest that the adoption of a participant-oriented (high absorption) perspective elicits more favourable responses from participants than a spectator-oriented (low absorption) perspective, with participants in the former experimental group reporting greater degrees of subjective sexual arousal and positive affect. Negative affect was equivalent across experimental conditions, with the participants reporting that they experienced little to no aversive feelings during either of the experimental conditions. The results suggest that the degree to which a women immerses and absorbs herself in a sexual stimulus has a significant impact in her subsequent cognitive and affective processing of that stimulus. More specifically, it appears that women respond more favourably when they are highly absorbed and immersed in a stimulus, reporting greater subjective sexual arousal and positive affect. Overall, the results of Studies One and Two highlight the dynamic and complex nature of female sexual arousal. It appears that women have definite cognitive and affective responses to sexual stimuli. The magnitude of these responses may be mediated by a number of factors however, including the intrinsic qualities of the stimulus and the degree to which the woman attends to the stimulus. Both these variables act to either enhance or inhibit the sexual arousal response. There results have important implications for current sexuality literature. While women’s cognitions and emotions in response to erotic film were generally highly correlated, in some instances they differed, warranting their inclusion as separate elements in models of female sexual arousal. Furthermore, it might be suggested that the inclusion of an additional variable – absorption – into current models of female sexual arousal would prove beneficial, aiding researchers to better understand and predict the arousal process. As such, recommendations are made for a revised model of female sexual arousal. In terms of future directions, the results of the present thesis have implications for the treatment of sexual dysfunctions, suggesting that clinicians need to understand the internal and external variables that might contribute to the aetiology and maintenance of their presenting problems.

New teachers, professional knowledge and educational reform in New Zealand

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.

Effectiveness of the development of internal auditing in the Victorian Public Service (1982-1987)

The selection of an inappropriate regime by policy makers can thwart the effective implementation of public policy and lead to implementation failure. Competing values in the implementation process have a significant impact on the results of implementation, and the regime selected for implementation implies the choice of one value over another. Stoker has argued that on the one hand central leadership is valued for consistency, benefits of scale, co-ordination and cost sharing (instrumental model); and on the other, diffuse authority is valued as knowledge is particular and situational, and the task of analysis is to understand the problems, perspectives and interactions of implementation participants at the contact point between public programs and their clients (accommodation model). This study examines the implementation regime chosen by the Victorian Government for the introduction of a modern internal auditing function into the Victorian Public Service, using the Bureau of Internal Audit within its Department of Management and Budget. The selection of the Department of Management and Budget for the introduction of Internal Audit as a managerial accountability mechanism indicates that the instrumental model was held by the Victorian Government to be the most important in implementation. It is argued that use of a top-down central agency leadership approach resulted in implementation failure. Three propositions suggesting the mechanisms by which this result is brought about are examined: that lack of co-ordinated planning at the outset will result in inadequate definition of client needs as part of policy formulation; that intraorganisational conflict during the implementation success, as individual participants are likely to exercise their veto; and the increasing the number of participants contributes to complexity, so that they should only be involved in implementation when their presence is absolutely required. It is argued that the essential task of implementation is to create an environment where participants are likely to co-operate to achieve predetermined public policy goals; and that the introduction of a modern internal auditing approach into the Victorian Public Service required a more participatory implementation regime in order to facilitate policy outcomes and prevent implementation failure. It is also argued that the dominance of economic reform over accountability in Victoria restricted the ability of the Bureau of Internal Audit to implement change to internal audit practices within Victorian Government departments. The selection of an instrumental model of implementation by the Department of Management and Budget is examined in the context of the environment that existed in Victoria between 1982-1987; and while some of the values which Stoker associates with the top-down approach to policy making were observed, an alternative view to the development of internal auditing in the Victorian Public Service can be sustained.

Energy analysis of the construction of office buildings /by Graham J. Treloar

Buildings have a significant impact on the environment due to the energy required for the manufacture of construction materials. The method of assessing the energy embodied in a product is known as energy analysis. Detailed office building embodied energy case studies are very rare. However, there is evidence to suggest that the energy requirements for the construction phase of commercial buildings, including the energy embodied in materials, is a significant component of the life cycle energy requirements. This thesis sets out to examine the current state of energy analysis, determine the national average energy intensities < i.e. embodied energy rates < for building materials and assess the significance of using national average energy intensities for the energy analysis of a case study office building. Likely ranges of variation in the building material embodied energy rates from the national averages are estimated and the resulting distribution for total embodied energy in the case study building simulated. Strategies for improving the energy analysis methods and data are suggested. Detailed energy analysis is shown to be a useful indicative method of quantifying the energy required for the construction of buildings.

General practitioner and the control of sexually transmissible infections

Sexually transmissible infections (STIs), one of the major preventable health problems affecting the Australian population, are often asymptomatic and, if undetected, can cause sub-fertility, infertility and chronic morbidity. In addition to these significant and costly consequences, STIs increase the risk of transmission of HIV. Given that 80% of Australian patients attend their General Practitioner (GP) each year, GPs are well placed to have a significant impact on STI transmission by diagnosing and treating both asymptomatic and symptomatic disease. Good professional practice would suggest that all GPs will undertake certain actions when they are consulted by a patient who either has symptoms of an STI or who appears to be at risk of acquiring an STI. This expectation is based on the premise that all GPs share the same detailed knowledge of STI risk factors and symptoms. It assumes that they will have no difficulty in eliciting such information from the patient, that the patient will comply with STI testing and treatment and that the patient will return for follow-up, to ensure that they and their sexual partners have been adequately treated. Given the constraints of the real world in which general practice exists, the sensitive nature of sexual health, and the stigma associated with STIs, there are many barriers to achieving such an outcome. My own previous research has highlighted some of the difficulties experienced by GPs in the area of STI control. This study has used data from four different sources (policy and stakeholder documents, literature, key informant interviews and my own past research) to examine ideal practice and actual practice in the prevention and treatment of STIs. A number of discrepancies were identified, and from these arose a series of recommendations for ways of making STI control in general practice less complex. To ensure that the results of the study were firmly embedded in the reality of general practice, comments on the recommendations were sought from GPs employed in a variety of practice settings, including those with low STI caseloads. These comments were used to modify the recommendations to ensure they would offer a practical and effective contribution to STI control in Victoria.

Leading lights : the promotion of garden suburb plans and planners in interwar Australia

This thesis explores interwar town planning in Australia, focusing on the period of large-scale urban expansion in the 1920’s. It problematises aspects of Australia’s urban planning history, particularly the 1920s ‘garden suburb. It also investigates the question of the use of international planning ideas in Australia, and the assertion or creation of authority by the Australian planning movement. The thesis additionally investigates the use of authoritative planning rhetoric for commercial or creative advantage. The thesis argues that the majority of innovative planning projects in the interwar years took place in the formation and foundation of the garden suburb. It shows that the garden suburb – assumed in much planning history to be an inferior form of Ebenezer Howard’s ‘garden city’ ideal – has, in fact, a number of precedents in 19th century Australian suburbia, some of which were retained in 20th century commercial estate design. Much of the Australian town planner’s authority at this time required recognition and awareness of the interests and needs of the general public, as negotiated through land vendors. As Australians looked to the future, and to the US for guidance, they were invited to invest in speculative real estate development modelled on this vision. The thesis concentrates primarily on the lives, careers and work of the British-Australian architect-planner Sir John Sulman; the Chicagoan architect-planners Marion Mahony and Walter Burley Griffin; and the Australian surveyor-planner Saxil Tuxen. These individuals were among the most prominent planners in Australia in the interwar years. All designed Australian garden suburbs, and combined advocacy with practice in private and public spheres. The thesis examines images and personas, both generic and individual, of the planner and the vendor. It shows that the formulation of the garden suburb and design practices, and the incorporation of international elements into Australian planning, are important in the creation of planning practice and forms. It also outlines the way these continue to have significant impact, in diverse and important ways, on both the contemporary built environment and planning history itself.