High-stakes literacy tests and local effects in a rural school

High-stakes literacy testing is now a ubiquitous educational phenomenon. However, it remains a relatively recent phenomenon in Australia. Hence it is possible to study the ways in which such tests are reorganising educators’ work during this period of change. This paper draws upon Dorothy Smith’s Institutional Ethnography and critical policy analysis to consider this problem and reports on interview data from teachers and the principal in small rural school in a poor area of South Australia. In this context high-stakes testing and the associated diagnostic school review unleashes a chain of actions within the school which ultimately results in educators doubting their professional judgments, increasing the investment in testing, narrowing their teaching of literacy and purchasing levelled reading schemes. The effects of high-stakes testing in disadvantaged schools are identified and discussed.

What are the health needs, familial and social problems of Thai migrants in a local community in Australia? A focus group study

This study explored the health needs, familial and social problems of Thai migrants in a local community in Brisbane, Australia. Five focus groups with Thai migrants were conducted. The qualitative data were examined using thematic content analysis that is specifically designed for focus group analysis. Four themes were identified: (1) positive experiences in Australia, (2) physical health problems, (3) mental health problems, and (4) familial and social health problems. This study revealed key health needs related to chronic disease and mental health, major barriers to health service use, such as language skills, and facilitating factors, such as the Thai Temple. We concluded that because the health needs, familial and social problems of Thai migrants were complex and culture bound, the development of health and community services for Thai migrants needs to take account of the ways in which Thai culture both negatively impacts health and offer positive solutions to problems.

Spatial variation of particle number concentration in school microscale environments and its impact on exposure assessment

It has not yet been established whether the spatial variation of particle number concentration (PNC) within a microscale environment can have an effect on exposure estimation results. In general, the degree of spatial variation within microscale environments remains unclear, since previous studies have only focused on spatial variation within macroscale environments. The aims of this study were to determine the spatial variation of PNC within microscale school environments, in order to assess the importance of the number of monitoring sites on exposure estimation. Furthermore, this paper aims to identify which parameters have the largest influence on spatial variation, as well as the relationship between those parameters and spatial variation. Air quality measurements were conducted for two consecutive weeks at each of the 25 schools across Brisbane, Australia. PNC was measured at three sites within the grounds of each school, along with the measurement of meteorological and several other air quality parameters. Traffic density was recorded for the busiest road adjacent to the school. Spatial variation at each school was quantified using coefficient of variation (CV). The portion of CV associated with instrument uncertainty was found to be 0.3 and therefore, CV was corrected so that only non-instrument uncertainty was analysed in the data. The median corrected CV (CVc) ranged from 0 to 0.35 across the schools, with 12 schools found to exhibit spatial variation. The study determined the number of required monitoring sites at schools with spatial variability and tested the deviation in exposure estimation arising from using only a single site. Nine schools required two measurement sites and three schools required three sites. Overall, the deviation in exposure estimation from using only one monitoring site was as much as one order of magnitude. The study also tested the association of spatial variation with wind speed/direction and traffic density, using partial correlation coefficients to identify sources of variation and non-parametric function estimation to quantify the level of variability. Traffic density and road to school wind direction were found to have a positive effect on CVc, and therefore, also on spatial variation. Wind speed was found to have a decreasing effect on spatial variation when it exceeded a threshold of 1.5 (m/s), while it had no effect below this threshold. Traffic density had a positive effect on spatial variation and its effect increased until it reached a density of 70 vehicles per five minutes, at which point its effect plateaued and did not increase further as a result of increasing traffic density.

The population dynamics of the Galapagos Flightless Cormorant Phalacrocorax harrisi in relation to sea temperature

The Flightless Cormorant Phalacrocorax harrisi is restricted to c. 400 km of the western coastline of the Galápagos archipelago coinciding with the local occurrence of seasonal upwelling of oceanic currents. Individuals frequently make more than one breeding attempt per year, usually change mates, and when juveniles are raised, females desert them to the further care of their mates who complete the rearing alone. Here we report data from a ten-year historical study of a colony stretching c.2 km along the coast-line and representing c. 12% of the total population of the species. The number of clutches laid and juveniles fledged were linked to the occurrence of cold water in off-shore foraging grounds. Most Flightless Cormorants have attachments to local stretches of coastline several hundred metres long. However, a few birds travelled many kilometres, including between colonies, sometimes over open sea. We show that males invest more in nest-building and feeding of the offspring than their mates, and we relate this to the (presumed) in-bred nature of the colony and to male and female reproductive strategies. Our data validate a published demographic model of the species (Valle 1995).

Fourth wall removed : womens' liberation or entrapment?

Australian dramatic literature of the 1950s and 1960s heralded a new wave in theatre and canonised a unique Australian identity on local and international stages. In previous decades, Australian theatre had been abound with the mythology of the wide brown land and the outback hero. This rural setting proved remote to audiences and sat uneasily within the conventions of the naturalist theatre. It was the suburban home that provided the back drop for this postwar evolution in Australian drama. While there were a number of factors that contributed to this watershed in Australian theatre, little has been written about how the spatial context may have influenced this movement. With the combined effects of postwar urbanization and shifting ideologies around domesticity, a new literary landscape had been created for playwrights to explore. Australian playwrights such as Dorothy Hewett, Ray Lawler and David Williamson transcended the outback hero by relocating him inside the postwar home. The Australian home of the 1960s slowly started subscribing to a new aesthetic of continuous living spaces and patios that extended from the exterior to the interior. These mass produced homes employed diluted spatial principles of houses designed by architects, Le Corbusier, Ludwig Mies Van der Rohe and Adolf Loos in the 1920s and 1930s. In writing about Adolf Loos’ architecture, Beatriz Colomina described the “house as a stage for the family theatre”. She also wrote that the inhabitants of Loos’ houses were “both actors and spectators of the family scene involved”. It has not been investigated as to whether this new capacity to spectate within the home was a catalyst for playwrights to reflect upon, and translate the domestic environment to the stage. Audiences were also accustomed to being spectators of domesticity and could relate to the representations of home in the theatre. Additionally, the domestic setting provided a space for gender discourse; a space in which contestations of masculine and feminine identities could be played out. This research investigates whether spectating within the domestic setting contributed to the revolution in Australian dramatic literature of the 1950s and 1960s. The concept of the spectator in domesticity is underpinned by the work of Beatriz Colomina and Mark Wigley. An understanding of how playwrights may have been influenced by spectatorship within the home is ascertained through interviews and biographical research. The paper explores playwrights’ own domestic experiences and those that have influenced the plays they wrote and endeavours to determine whether seeing into the home played a vital role in canonising the Australian identity on the stage.

A Tale of Two Marinas

A Tale of Two Marinas: Burnett Heads and Port of Bundaberg This exhibition showcases the work of 4th Year undergraduate Landscape Architecture and Civil and Environmental Engineering students in response to issues of sustainability in Burnett Heads and the Port of Bundaberg. The Burnett Heads & Port of Bundaberg project site, just north of Bargara, is a complex mix of port facilities, urban development, established residential and service areas, coastal conservation and agriculture. The project brief was to prepare a range of strategic planning and environmental management options for future urban and infrastructure development. 4th year undergraduate Landscape Architecture and Civil and Environmental Engineering students worked over one teaching semester with guidance from QUT academics and partner organisations to produce strategic planning, environmental management planning and design options for managing future growth in the area. The project process involved three visits to the site by QUT students and staff. The first visit at the project’s commencement included a formal briefing session with project partners the Burnett Mary Regional Group, Port of Brisbane Corporation, and Queensland Department of Local Government and Planning. Formal and informal community engagement facilitated by the Burnett Heads Progress Association also allowed students to gain some understanding of local values. A second visit mid-project involved a ‘Futures Workshop’ with students and community. This enabled the students to gain the benefit of local knowledge and experience in response to their work-in-progress, and to establish priorities for project completion. It strengthened the relationship between the community and the students. A final exhibition, ‘A Tale of Two Marinas’ was held at the Burnett Progress Hall just prior to completion of the project. The student work exhibited offers a diverse number of alternative options for the future urban development, infrastructure and environmental planning that the partner organisations have used for ongoing consultation.

Port of Bundaberg Futures

This exhibition showcases the work of Postgraduate Landscape Architecture and final year Undergraduate Civil and Environmental Engineering students in response to issues of sustainability in the Port of Bundaberg. The Port of Bundaberg project site, just north of Bargara, is a complex mix of port facilities, urban development, coastal conservation and agriculture. The project brief was to prepare a range of strategic planning and environmental management options for future urban and infrastructure development in the Port area. Postgraduate Landscape Architecture and final year Undergraduate Civil and Environmental Engineering students worked over one teaching semester with guidance from QUT academics and partner organisations to produce strategic planning, environmental management planning and design options for managing future growth in the area. Specifically, these make recommendations regarding: • Interface between Port lands and residential settlement; • Future residential/urban development; • Transport accessibility and mobility – road, rail, tramway and maritime for personal and freight movement; • Local and regional connectivity - both physical and perceptual- between urban settlements of Port of Bundaberg – Burnett Heads and the surrounding area; • Recreational and tourism development; • Public/private space mix and access; • Ecological conservation assets; • Natural and cultural heritage assets The project process involved three visits to the site by QUT students and staff. The first visit at the project’s commencement included a formal briefing session with project partners the Burnett Mary Regional Group, Port of Brisbane Corporation, and Queensland Department of Local Government and Planning. Formal and informal community engagement facilitated by the Burnett Heads Progress Association also allowed students to gain some understanding of local values. A second visit mid-project involved a ‘Futures Workshop’ with students and community. This enabled the students to gain the benefit of local knowledge and experience in response to their work-in-progress, and to establish priorities for project completion. It strengthened the relationship between the community and the students. A final exhibition, ‘Port of Bundaberg Futures' was held at the Port TAFE Campus upon the completion of the project. The student work exhibited offers a diverse number of alternative options for the future urban development, infrastructure and environmental planning that the partner organisations have used for ongoing consultation.

Simulation architecture for cooperative ITS applications and augmented perception

Cooperative Systems provide, through the multiplication of information sources over the road, a lot of potential to improve the safety of road users, especially drivers. However, developing cooperative ITS applications requires additional resources compared to non-cooperative applications which are both time consuming and expensive. In this paper, we present a simulation architecture aimed at prototyping cooperative ITS applications in an accurate and detailed, close-to-reality environment; the architecture is designed to be modular and generalist. It can be used to simulate any type of CS applications as well as augmented perception. Then, we discuss the results of two applications deployed with our architecture, using a common freeway emergency braking scenario. The first application is Emergency Electronic Brake Light (EEBL); we discuss improvements in safety in terms of the number of crashes and the severity of crashes. The second application compares the performance of a cooperative risk assessment using an augmented map against a non-cooperative approach based on local-perception only. Our results show a systematic improvement of forward warning time for most vehicles in the string when using the augmented-map-based risk assessment.

Judicial intervention in the affairs of unincorporated religious associations in New South Wales

The leading Australian High Court case of Cameron v Hogan (1934) 51 CLR 358 confirmed that associations which are 'social, sporting, political, scientific, religious, artistic or humanitarian in character’, and not formed ‘for private gain or material advantage’, are usually formed on a basis of mutual consent. Unless there is some clear, positive indication that the members wish to relate to each other in a legal fashion, the rules of the association will not be treated as an enforceable contract in contrast to the rules of incorporated bodies. Australian unincorporated associations experiencing internal disputes, like those in most other common law jurisdictions, have found courts reluctant to provide a remedy unless there is a proprietary interest or trust to protect. This is further compounded by the judicial view that an unincorporated association has no legal recognition as a ‘juristic person’. The right to hold property and the ability to sue and be sued are incidences of this recognition. By contrast, the law recognises ‘artificial’ legal persons such as corporations, who are given rights to hold property and to sue and be sued. However, when a number of individuals associate together for a non-commercial, lawful purpose, but not by way of a corporate structure, legal recognition ‘as a group’ is denied. Since 1934, a significant number of cases have distinguished or otherwise declined to follow this precedent of the High Court. A trenchant criticism is found in McKinnon v Grogan [1974] 1 NSWLR 295, 298 where Wootten J said that ‘citizens are entitled to look to the courts for the same assistance in resolving disputes about the conduct of sporting, political and social organisations as they can expect in relation to commercial institutions’. According to Wootten J at 298, if disputes are not settled by the courts, this would create a ‘legal-no-man's land, in which disputes are settled not in accordance with justice and the fulfilment of deliberately undertaken obligations, but by deceit, craftiness, and an arrogant disregard of rights’. Cameron v Hogan was decided in 1934. There is an increasing volume of first instance cases which distinguish or, in the words of Palmer J, ‘just pay lip service’ to this High Court decision. (Coleman v Liberal Party of Australia (2007) 212 FLR 271, 278). The dissenting cases seem to call for a judicial policy initiative. This would require recognition by judges that voluntary associations play a significant role in society and that members have a legitimate, enforceable expectation that the rules of the association will be observed by members and in the last resort, enforced by the courts without the need to prove contractual intention, the existence of a trust or the existence of a right of a proprietary nature. This thesis asks: what legal, as distinct from political, redress does an ordinary member have, when a rule is made or a process followed which is contrary to the underlying doctrines and philosophies embodied in the constitutional documents of an unincorporated religious association? When, if at all, will a court intervene to ensure doctrinal purity or to supervise the daily life of a large unincorporated religious association? My research objective is to examine and analyse leading cases and relevant legislation on the enforceability of the constitutions of large, unincorporated, religious associations with particular reference to the Anglican Church in New South Wales. Given its numerical size, wide geographical spread and presence since the foundation of New South Wales, the Anglican Church in New South Wales, contains a sufficient variety of ‘real life’ situations to be representative of the legal issues posed by Cameron v Hogan which may be faced by other large, unincorporated, religious associations in New South Wales. In contemporary society, large, unincorporated, religious associations play an important community role. The resolution of internal disputes in such associations should not remain captive to legal doctrines of an earlier age.

Improved estimates of percolation and anisotropic permeability from 3-D X-ray microtomography using stochastic analyses and visualization

X-ray microtomography (micro-CT) with micron resolution enables new ways of characterizing microstructures and opens pathways for forward calculations of multiscale rock properties. A quantitative characterization of the microstructure is the first step in this challenge. We developed a new approach to extract scale-dependent characteristics of porosity, percolation, and anisotropic permeability from 3-D microstructural models of rocks. The Hoshen-Kopelman algorithm of percolation theory is employed for a standard percolation analysis. The anisotropy of permeability is calculated by means of the star volume distribution approach. The local porosity distribution and local percolation probability are obtained by using the local porosity theory. Additionally, the local anisotropy distribution is defined and analyzed through two empirical probability density functions, the isotropy index and the elongation index. For such a high-resolution data set, the typical data sizes of the CT images are on the order of gigabytes to tens of gigabytes; thus an extremely large number of calculations are required. To resolve this large memory problem parallelization in OpenMP was used to optimally harness the shared memory infrastructure on cache coherent Non-Uniform Memory Access architecture machines such as the iVEC SGI Altix 3700Bx2 Supercomputer. We see adequate visualization of the results as an important element in this first pioneering study.

Land use planning and the airport metropolis

Australian airports have emerged as important urban activity centres over the past decade as a result of privatisation. A range of reciprocal airport and regional impacts now pose considerable challenges for both airport operation and the surrounding urban and regional environment. The airport can no longer be managed solely as a specialised transport entity in isolation from the metropolis that it serves. In 2007 a multidisciplinary Australian Research Council Linkage Project (LP 0775225) was funded to investigate the changing role of airports in Australia. This thesis is but one component of this collaborative research effort. Here the issues surrounding the policy and practice of airport and regional land use planning are explored, analysed and detailed. This research, for the first time, assembles a distinct progression of the wider social, economic, technological and environmental roles of the airport within the Australian airport literature from 1914 – 2011. It recognises that while the list of airport and regional impacts has grown through time, treatment within practice and the literature has largely remained highly specialised and contained within disciplinary paradigms. The first publication of the thesis (Chapter 2) acknowledges that the changing role of airports demands the establishment of new models of airport planning and development. It argues that practice and research requires a better understanding of the reciprocal impacts of airports and their urban catchments. The second publication (Chapter 3) highlights that there is ad hoc examination and media attention of high profile airport and regional conflict, but little empirical analysis or understanding of the extent to which all privatised Australian airports are intending to develop. The conceptual and methodological significance of this research is the development of a national land use classification system for on-airport development. This paper establishes the extent of on-airport development in Australia, providing insight into the changing land use and economic roles of privatised airports. The third publication (Chapter 4) details new and significant interdependencies for airport and regional development in consideration of the progression of airports as activity centres. Here the model of an ‘airport metropolis’ is offered as an organising device and theoretical contribution for comprehending the complexity and planning of airport and regional development. It delivers a conceptual framework for both research and policy, which acknowledges the reciprocal impacts of economic development, land use, infrastructure and governance ‘interfaces’. In a timely and significant concurrence with this research the Australian Government announced and delivered a National Aviation Policy Review (2008 – 2009). As such the fourth publication (Chapter 5) focuses on the airport and urban planning aspects of the review. This paper also highlights the overall policy intention of facilitating broader airport and regional collaborative processes. This communicative turn in airport policy is significant in light of the communicative theoretical framework of the thesis. The fifth paper of the thesis (Chapter 6) examines three Australian case studies (Brisbane, Adelaide and Canberra) to detail the context of airport and regional land use planning and to apply the airport metropolis model as a framework for research. Through the use of Land Use Forums, over 120 airport and regional stakeholders are brought together to detail their perspectives and interactions with airport and regional land use planning. An inductive thematic analysis of the results identifies three significant themes which contribute to the fragmentation of airport and regional and land use planning: 1) inadequate coordination and disjointed decision-making; 2) current legislative and policy frameworks; and 3) competing stakeholder priorities and interests. Building on this new knowledge, Chapter 7 details the perceptions of airport and local, state and territory government stakeholders to land use relationships, processes and outcomes. A series of semi-structured interviews are undertaken in each of the case studies to inform this research. The potential implications for ongoing communicative practice are discussed in conclusion. The following thesis represents an incremental and cumulative research process which delivers new knowledge for the practical understanding and research interpretation of airport and regional land use planning practice and policy. It has developed and applied a robust conceptual framework which delivers significant direction for all stakeholders to better comprehend the relevance of airports in the urban character and design of our cities.

Multi-criteria ranking and source apportionment of airborne particulate matter

Particulate matter research is essential because of the well known significant adverse effects of aerosol particles on human health and the environment. In particular, identification of the origin or sources of particulate matter emissions is of paramount importance in assisting efforts to control and reduce air pollution in the atmosphere. This thesis aims to: identify the sources of particulate matter; compare pollution conditions at urban, rural and roadside receptor sites; combine information about the sources with meteorological conditions at the sites to locate the emission sources; compare sources based on particle size or mass; and ultimately, provide the basis for control and reduction in particulate matter concentrations in the atmosphere. To achieve these objectives, data was obtained from assorted local and international receptor sites over long sampling periods. The samples were analysed using Ion Beam Analysis and Scanning Mobility Particle Sizer methods to measure the particle mass with chemical composition and the particle size distribution, respectively. Advanced data analysis techniques were employed to derive information from large, complex data sets. Multi-Criteria Decision Making (MCDM), a ranking method, drew on data variability to examine the overall trends, and provided the rank ordering of the sites and years that sampling was conducted. Coupled with the receptor model Positive Matrix Factorisation (PMF), the pollution emission sources were identified and meaningful information pertinent to the prioritisation of control and reduction strategies was obtained. This thesis is presented in the thesis by publication format. It includes four refereed papers which together demonstrate a novel combination of data analysis techniques that enabled particulate matter sources to be identified and sampling site/year ranked. The strength of this source identification process was corroborated when the analysis procedure was expanded to encompass multiple receptor sites. Initially applied to identify the contributing sources at roadside and suburban sites in Brisbane, the technique was subsequently applied to three receptor sites (roadside, urban and rural) located in Hong Kong. The comparable results from these international and national sites over several sampling periods indicated similarities in source contributions between receptor site-types, irrespective of global location and suggested the need to apply these methods to air pollution investigations worldwide. Furthermore, an investigation into particle size distribution data was conducted to deduce the sources of aerosol emissions based on particle size and elemental composition. Considering the adverse effects on human health caused by small-sized particles, knowledge of particle size distribution and their elemental composition provides a different perspective on the pollution problem. This thesis clearly illustrates that the application of an innovative combination of advanced data interpretation methods to identify particulate matter sources and rank sampling sites/years provides the basis for the prioritisation of future air pollution control measures. Moreover, this study contributes significantly to knowledge based on chemical composition of airborne particulate matter in Brisbane, Australia and on the identity and plausible locations of the contributing sources. Such novel source apportionment and ranking procedures are ultimately applicable to environmental investigations worldwide.

Comment on "Local accumulation times for source, diffusion, and degradation models in two and three dimensions" [J. Chem. Phys. 138, 104121 (2013)]

In a recent paper, Gordon, Muratov, and Shvartsman studied a partial differential equation (PDE) model describing radially symmetric diffusion and degradation in two and three dimensions. They paid particular attention to the local accumulation time (LAT), also known in the literature as the mean action time, which is a spatially dependent timescale that can be used to provide an estimate of the time required for the transient solution to effectively reach steady state. They presented exact results for three-dimensional applications and gave approximate results for the two-dimensional analogue. Here we make two generalizations of Gordon, Muratov, and Shvartsman’s work: (i) we present an exact expression for the LAT in any dimension and (ii) we present an exact expression for the variance of the distribution. The variance provides useful information regarding the spread about the mean that is not captured by the LAT. We conclude by describing further extensions of the model that were not considered by Gordon,Muratov, and Shvartsman. We have found that exact expressions for the LAT can also be derived for these important extensions...

Cold-formed steel columns subject to local buckling at elevated temperatures

Fire safety design of building structures has received greater attention in recent times due to continuing losses of properties and lives in fires. However, the structural behaviour of thin-walled cold-formed steel columns under fire conditions is not well understood despite the increasing use of light gauge steels in building construction. Cold-formed steel columns are often subject to local buckling effects. Therefore a series of laboratory tests of lipped and unlipped channel columns made of varying steel thicknesses and grades was undertaken at uniform elevated temperatures up to 700°C under steady state conditions. Finite element models of the tested columns were also developed, and their elastic buckling and nonlinear analysis results were compared with test results at elevated temperatures. Effects of the degradation of mechanical properties of steel with temperature were included in the finite element analyses. The use of accurately measured yield stress, elasticity modulus and stress-strain curves at elevated temperatures provided a good comparison of the ultimate loads and load-deflection curves from tests and finite element analyses. The commonly used effective width design rules and the direct strength method at ambient temperature were then used to predict the ultimate loads at elevated temperatures by using the reduced mechanical properties. By comparing these predicted ultimate loads with those from tests and finite element analyses, the accuracy of using this design approach was evaluated.

Urban agriculture : a growing field of research workshop at INTERACT 2013

Growing food presents diverse challenges and opportunities within the urban environment. As cities develop, population density rises, land prices rise, and the opportunity to use land for traditional farming and gardening diminishes. Counter to this trend there are a growing number of both community gardens, city farms, guerrilla gardening, rooftop and vertical gardens, pot plants, windowsill herbs, and other balcony or backyard gardens cropping up in different cities, all with a purpose to produce food. This workshop brings to-gether practitioners and researchers in the field of urban agriculture and Hu-man-Computer Interaction to explore and opportunities for technology design to support the different forms of growing practice and foster local food production in cities. This 1-day workshop will serve as an active forum for researchers and practi-tioners across various fields including, but not limited to, agriculture and gar-dening, education, urban planning, human-computer interaction, and communi-ty engagement. This workshop has three distinct points of focus: i) Individual and small-scale gardening and food production, and how to connect like minded people who are involved in these practices to share their knowledge ii) Com-munities involved in urban agriculture, either through community gardens, city farms, or grassroots movements, often dependant on volunteer participation, providing the challenge of managing limited resources iii) Environmental and sociocultural sustainability through urban agriculture. The participants will have an opportunity to present their own work. This will be followed by a visit to a nearby city farm, which will provide a local context for a group design exercise. Finally the workshop will conclude with panel dis-cussions to review opportunities for further research and collaborations beyond the conference. For more information, please visit the workshop website, at http://www.urbaninformatics.net/resources/interact2013cfp/