Floor trading and screen trading : distinctions for practitioners

The creation of an electronic limit order book is discussed as the basis for distinguishing between the floor trading and screen trading of derivative instruments. Distinguishing between FTP and ETP in terms of market transparency allows investors to contemplate the trade-off between the 2 platforms. Distinguishing between FTP and ETP in terms of memory preservation allows practitioners to contemplate the different experiences when analyzing floor data and screen data. A comparable set of floor and screen data is used to examine the impact on the trading dynamics and price discovery of LIFFE's FTSE 100 index futures market when trading is automated on LIFFE CONNECT. The dynamics in the quote change equation is shortened when moving from the floor to screen sample. Using the model's measure of trade informativeness, it is found that in 4 out of 5 daily sub-samples, screen trades are more than twice as informative as floor trades. Variability within a system of equations is explained more by order size history than trade size history.

Folding history back onto itself

The history of artists working with the moving image constitutes a substantial dialogue with technology. The ability to construct a complex visual narrative from disparate visual material is a developed skill that is the product of such an evolving dialogue with technique. The use of found and stolen images and their re-processing within such an ‘experimental’ practice can be experienced as transforming the originating material and emphasizing aspects previously hidden. Such ‘shock tactics’ performed on historic material will be examined in the film work of Peter Tscherkassky (Dreamwork Austria 10 minutes 2001) and Martin Arnold (Alone: Life Wastes Andy Hardy Austria 15 minutes 1998). The traumatic effect of these films will be examined in relation to Maya Deren’s ideas of ‘vertical’ and ‘horizontal’ editing and Chris Brewin’s neurological research into traumatic remembering which proposes the interaction between two types of memory systems: SAM (Situational Accessible Memory) and VAM (Verbally Accessible Memory).

Beyond mimesis : place, interpretation and response

My study examines the subjective nature of artistic interpretation through the notion of mimesis as process or transformation of material. Influential factors that mediate in the artistic process, such as memory, reflection and an awareness of cultural analogy and metaphor, are examined and related to a specific project in the studio, where the mediation process is further influenced by the materials used to produce the images. My studies of the concept of mimesis have revealed an intermediary realm that exists in the space between empirical reality and its interpretation. Throughout history the process of mimesis has been integral to all forms of the arts. In Plato's time the production of an image that simulated things as they appeared to the eye was considered a desired ideal. Aristotle later introduced developments which extended this concept to include a refiguring or reforming of material derived from the original source, making new connections between existing factors and in this transformation bringing new meanings to a symbolically constituted world. This discussion of the representation of reality, the influence of a dialogue between notions of imitation and the recreation of material continues throughout the exegesis. My study emphasises the interpretive stage of the mimetic process where a consideration of these themes is most relevant and some of the factors that can influence its outcome. It is my opinion that the production of images in response to the particularities of place can be defined in three stages. Firstly, the experience of the place; secondly, the beginning and maturation of the idea or concept; where mimesis takes place, and thirdly, the production of the art work in response. This process is illustrated in Part 2 of the exegesis, where the development of the studio work is documented and linked with the themes discussed in Part 1. The geographic site or place I selected to study is adjacent to Mt. Noorat, a volcanic site in the Western district of Victoria; the surrounding plains are littered with scoria that has been thrown out of the volcano thousands of years ago. Early British, Scottish and Irish settlers to this region used the stone to construct fences reminiscent of their homeland, through this activity they cleared the land and confined and protected their stock. My interests are in factors that include - the material of the stone, notions of enclosure and safety, of boundaries and circumscribed space, and of the cultural reflection that has taken place in this reconstruction of Eurocentric vision. These walls also represent the means by which land was enclosed and property defined, moving from a situation of public access to notions of ownership and the annexation of land for individual gain. Around each point of eruption, the craggy volcanic scoria has been used to create a constructed landscape which both symbolises and mirrors the Anglo - Celtic origins of the people. I have used the legend of Narcissus to illustrate the self-reflective and introspective processes that the settlers invoked in their attempts to come to terms with a strange land. I consider that the story of Narcissus, who fell in love with his own reflection, finds a parellel in the creation of the walls. The re-creation of artifacts from their own cultural environment provided the settlers with a familiar 'face' in an alien world; a reassurance of the familiar in an unfamiliar terrain. Part of this study is an investigation of this notion of landscape as cultural reflection. Geographers have long known that landscape is a cultural construct, an historically evolving ideal manifested in painting, prints and drawings as well as poetry, gardens and parks. One can view these constructions as illustrations or images of meaning which constitute representations of cultural ideals. The neo-classical influence reflected in the paintings of artists who accompanied the early expeditions to Australia demonstrates these themes. The medium of the mirror provides the opportunity to suggest aspects of a cultural reflection and an awareness of identity that has relevance to contemporary Australian culture, therefore, I have allowed it to play a major role throughout this study. Its role in mimesis, firstly, as a reflection in an imitative sense is established, then in its refigurative role, in which the similarities between the original and the reformed rely more on correlative factors than representation. I have used examples from the history of art to illustrate this potential. The formation and development of a narrative involving reflection threads throughout the thesis, both in the visual presentation and in the exegesis. The production of a body of paintings, drawings and sculpture reflect my interpretation and response to the particular site. The correspondences between these works and my theoretical concerns is articulated in the exegesis. The metaphor implied by the use of the walls as agents of enclosure also refers to the capacity of the individual to be confined by notional boundaries and restrictive practices where totalising systems of thought dominate theoretical debate and restrict its freedom. I have used images where gaps in the walls represent the potential implicit to the concept of liminal space, where the spectator moves from one physical space to another and from one stage of development to another. The threshold of this opening in the walls becomes the site where transformation can take place, a metaphor for the mimetic process where the initial experience is translated and transformed into the final product. The paintings, drawings and other works in this series fulfil the role of marks on the surface of the mirror, separating the initial experience from the processes of memory, reflection and speculation. The works draw attention to the materiality that they represent and yet provide the opportunity for new insights and experiences, allowing the subjective nature of artistic activity to combine symbolic elements relating to the site, resulting in the production of meaning.

Empowering audiences to measure quality

This paper explores developments in the political representations of English theater audiences from the Elizabethan era to the 1809 OP riots, to demonstrate that audiences were long considered politically significant, not just ‘mere entertainment.’ Early commercial theater audiences were conceived by the Elizabethan state as crowds of subjects that threatened social order. Through the Civil War era, theaters became places of political discussion and dissent and of emerging publics of citizens. By the early nineteenth century theater owners began to reframe audiences as markets of consumers. Each representation continued to appear in later discursive fields, each was contested, and the disputes were couched in political terms.

Reflections on conducting educational research projects in Papua New Guinea

This article discusses how work on an AusAID-funded impact study of major elementary school reforms influenced the research design of a subsequent Australian Development Research Award project investigating the development of sustainable professional learning communities for primary school teachers in remote places of PNG. The authors reflect on how their different backgrounds, roles, experiences and expertise influenced the design and conduct of the projects and, in particular, how the experiences of the action research and survey methods used on the first project shaped the design of the second. The participating elementary school teachers were encouraged, through action research approaches, to develop self reflexive attitudes to their professional work, and to engage in critical reflection of their roles and practices. Accordingly, this article adopts a self-reflexive position towards the authors’ work as academics and researchers as they endeavoured to produce methodologies that are academically rigorous, contextually suitable, and epistemologically appropriate for PNG.

Letter to a dead playwright : daily grind, Vicki Reynolds and archive fever, part 2

'Nothing is less reliable, nothing is less clear today than the word "archive",' observed Jacques Derrida in his book Archive Fever, a Freudian Impression (1996). This paper reflects on the unsettling process of establishing (or commencing) the Melbourne Workers Theatre archive, which is part of the ARC funded AusStage project. It does so with reference to Derrida's account of archive fever, which he characterises as an 'irrepressible desire to return to the origin, a homesickness, a nostalgia for the return to the most archaic place of absolute commencement' (91). In short, the paper uses Derrida's commentary on questions of memory, authority, inscription, hauntology and heritage to identify some of the philosophical and ethical aporias I have enountered while working on the AusStage project. The paper pays particular attention to what Derrida calls the spectral structure of the archive, and stages a conversation with the ghosts that haunt the digitised Melbourne Workers Theatre documents. It also unpacks the logic of Derrida's so-called messianic account of the archive, which 'opens out of the future' thereby affirming the future-to-come, and unsettling the normative notion of the archive as a repository for what has passed.

‘The Snowtown we know and love’ : small newspapers and heinous crimes

This paper examines the role of small newspapers in Australia when bizarre and shocking crimes are committed locally. These crimes often attract intense media attention that casts a net of shame across entire townships through their representation as places of fascination and fear in the public imagination. We take a practice approach in the tradition of Pierre Bourdieu to explore the complex editorial considerations, news judgements and community responsibilities small newspapers must negotiate when covering these stories for local audiences. This study focuses on three towns in regional Australia that have been represented in metropolitan and international news media as ‘dead zones' after shocking crimes: Bowral in NSW, Snowtown in South Australia and Moe in Victoria.

Learning about dynamic scenes

Incremental learning allows modification of developed concepts without the need for prior knowledge of all data. An incremental algorithm is developed to focus on the problems of memory size, forgetting and concept drift. The evidence based forgetting procedure minimizes the concept size and maintains its consistency with respect to the incoming data. An age value associated with the data determines its reinforcement or removal from a concept.

Letter to a dead playwright : daily grind, Vicki Reynolds, and archive fever

’Nothing is less reliable, nothing is less clear today than the word “archive”,’ observed Jacques Derrida in his book Archive Fever: a Freudian Impression (1996). This paper reflects on the unsettling process of establishing (or commencing) an archive for the Melbourne Workers Theatre, to form part of the AusStage digital archive which records information on live performance in Australia. Glenn D'Cruz's paper juxtaposes two disparate but connected registers of writing: an open letter to a deceased Australian playwright, Vicki Reynolds, and a critical reflection on the politics of the archive with reference to Derrida's account of archive fever, which he characterizes as an ‘irrepressible desire to return to the origin, a homesickness, a nostalgia for the return to the most archaic place of absolute commencement’. Using Derrida's commentary on questions of memory, authority, inscription, hauntology, and heritage to identify some of the philosophical and ethical aporias he encountered while working on the project, D’Cruz pays particular attention to what Derrida calls the spectral structure of the archive, and stages a conversation with the ghosts that haunt the digitized Melbourne Workers Theatre documents. He also unpacks the logic of Derrida's so-called messianic account of the archive, which ‘opens out of the future’, thereby affirming the future-to-come, and unsettling the normative notion of the archive as a repository for what has passed. Glenn D’Cruz teaches at Deakin University, Australia. He is the author of Midnight's Orphans: Anglo-Indians in Post/Colonial Literature (Peter Lang, 2006) and editor of Class Act: Melbourne Workers Theatre 1987–2007 (Vulgar Press, 2007).

Glassimations

Glassimations, an exhibition of contemporary Australian artworks that bridge the materials of glass and animation to produce works with qualities that are unique to these two mediums and yet create a dialogue between them. The exhibition includes the work of a variety of artists. Lee Whitmore paints on glass to achieve an animated image that metamorphs with its own unique movement; Tom Moore animates his blown glass creations into their own world; Deirdre Feeney animates onto her glass architectural forms to produce places of light that condense time and are full of intangible narrative; Mark Eliott and Jack McGrath collaborate to bring their understanding and skills of glass and animation together, creating works that are founded in the production processes of both materials; and Lienors Torre and Alastair Boell collaborate to create animated films that become objects of glass and furniture, able to occupy real spaces in our domestic lives.

Triple G girls get going in tennis : resource manual

Physical activity is ranked second in importance only to tobacco control in health promotion and disease prevention in Australia. Individuals can be active in many ways every day, including –walking to and/or from school, work and other places of interest; participating in sports clubs; going to the YMCA or community leisure centre where you can be active through gyms, group fitness classes or in the swimming pool; visiting local parks and walking trails, and even at home and in the backyard. You can always find ways to be active in the community.

Promoting physical activity to young people is important for developing healthy lifestyles now and maintaining them for the future. A physically active lifestyle can be of benefit to physical, mental and social health. Despite these benefits, adolescent girls and young women are considerably less active than their male counterparts, and sport participation decreases dramatically among girls during their secondary school years. Many physical education teachers have also expressed concern about girls minimising their participation in school physical education. Consequently, it is timely that a project such as Triple G ‘Girls Get Going in Tennis, in Football, and at the YMCA’ should be developed and implemented in an effort to arrest the decline in girls’ participation in sport, physical activity and physical education.

The Triple G program aims to develop, implement and evaluate a program to promote participation in physical activity by girls in rural and regional schools and communities. The impact of the Triple G program on the mental and physical wellbeing of the girls will also be evaluated. The program specifically aims to create school and community linkages through the introduction of tennis coaches, football coaches, and YMCA instructors into the physical education class to team teach with physical education staff during the 2011 school year. As part of the school-based program, Year 7 – 9 girls will participate in a YMCA unit and one of tennis or football during their physical education classes (6 sessions x 100mins each). Each unit is then followed by an eight week afterschool program at the local tennis or football club, or YMCA centre.

Opportunistic destinations : transforming railway stations into sustainable urban centres

All over the world stations are changing to become new urban centres and destinations. Some flagship projects, like Atocha in Madrid or Grand Central in Manhattan, make great destinations with shops, restaurants, museums and exhibition spaces. The urban spaces around them have been redesigned to provide excellent public areas and rationalise functional needs. Suburban stations also have the potential to follow the same trend. After all, stations are places of high symbolic value, they are central to the life of many people and include all sections of society, while generating high footfall and stimulating the economy. For this reason, Station Master Planning must focus on 'place' as well as 'product' to respond to the multiple opportunities. Considering the need that designs of stations need to be sustainable and preserve and value the public spaces, this paper reflects on the case study of the station master plan of the Tottenham Hale Station in London where SKM Colin Buchanan applied opportunistic urban design principles and created a new, significant urban square for north London and a local destination for leisure and investment. The design methodology are transferred to the local context of Melbourne where the unique spatial circumstances of suburban stations along the New Regional Rail Link line are reviewed, highlighting how these stations possesses specific opportunistic and sustainable urban design answers.

Dividing traffic sub-areas based on a parallel K-means algorithm

In order to alleviate the traffic congestion and reduce the complexity of traffic control and management, it is necessary to exploit traffic sub-areas division which should be effective in planing traffic. Some researchers applied the K-Means algorithm to divide traffic sub-areas on the taxi trajectories. However, the traditional K-Means algorithms faced difficulties in processing large-scale Global Position System(GPS) trajectories of taxicabs with the restrictions of memory, I/O, computing performance. This paper proposes a Parallel Traffic Sub-Areas Division(PTSD) method which consists of two stages, on the basis of the Parallel K-Means(PKM) algorithm. During the first stage, we develop a process to cluster traffic sub-areas based on the PKM algorithm. Then, the second stage, we identify boundary of traffic sub-areas on the base of cluster result. According to this method, we divide traffic sub-areas of Beijing on the real-word (GPS) trajectories of taxicabs. The experiment and discussion show that the method is effective in dividing traffic sub-areas.

Neighbourhood environment, sitting time and motorised transport in older adults: a cross-sectional study in Hong Kong

OBJECTIVES: Sitting time is a public health concern. This study examined associations of objectively measured neighbourhood environmental attributes with non-transport sitting time and motorised transport in 484 Hong Kong older adults. Neighbourhood attributes encouraging walking may help older adults replace some sitting time at home and on motorised transport with light-to-moderate-intensity activities such as strolling around the neighbourhood or walking to/from neighbourhood destinations. Thus, we hypothesised environmental attributes found to be related to walking would show associations with non-transport sitting time and motorised transport opposite to those seen for walking. DESIGN: Cross-sectional. SETTING: Hong Kong, an ultradense urban environment. PARTICIPANTS: 484 ethnic Chinese Hong Kong residents aged 65+ recruited from membership lists of four Hong Kong Elderly Health Centres representing catchment areas of low and high transport-related walkability stratified by socioeconomic status (response rate: 78%). PRIMARY AND SECONDARY OUTCOME MEASURES: Attributes of participants' neighbourhood environments were assessed by environmental audits, while non-transport sitting time and motorised transport were ascertained using the International Physical Activity Questionnaire-Long Form (Chinese version). RESULTS: Daily non-transport sitting minutes were 283 (SD=128) and motorised transport 23 (SD=28). Prevalence of signs of crime/disorder, streetlights, public facilities (toilets and benches) and pedestrian safety were independently negatively related, and sloping streets positively related, to sitting outcomes. Places of worship in the neighbourhood were predictive of more, and prevalence of public transit points of less, non-transport sitting. Associations of either or both sitting outcomes with prevalence of food/grocery stores and presence of parks were moderated by path obstructions and signs of crime/disorder. CONCLUSIONS: The findings suggest that access to specific destinations and relatively low-cost, minimal impact modifications to the urban form, such as street lighting, public toilets, benches and public transit points, could potentially reduce sitting time and associated negative health outcomes in Hong Kong older adults.