The role of local grouping and global orientation contrast in perception of orientation-modulated textures

We explored the contribution to perception of orientation-modulated textures of visual processes selective either for orientation contrast or orientation grouping. To distinguish between these two processes we manipulated the axis of local grouping of texture elements independently of the direction of global orientation modulation. The general question posed was whether visibility of texture structure (measured as threshold for discriminating spatial-frequency of texture structure) is dependent on the magnitude of orientation contrast, strength and direction of local grouping, or some combination of the two. We demonstrated that the factor of primary importance is the amplitude of global orientation contrast rather than the presence of local grouping content. Using orientation-interleaved textures (containing two superimposed textures modulated around orthogonal orientations), we further showed that orientation single-opponent processes are a more likely candidate for detecting orientation contrast than double-opponent processes.

Monitoring employees' email and internet use at work : balancing the interests of employers and employees.

The increased use of email and the internet in the workplace raises important legal questions for workers and employers. The purpose of this paper is to  explore some of the legal implications of use by employees of workplace email and internet systems, with particular focus on employer monitoring of the use of email and internet and its implications for employee privacy.

Perceptions about the local neighborhood and walking and cycling among children

Background. This study examined associations between perceptions of the local neighborhood and walking and cycling among children. Methods. Children aged 5–6 years (n = 291) and 10–12 years (n = 919) were recruited from 19 Australian primary schools. Parents reported their child's usual walking or cycling to local destinations and their perceptions of their neighborhood. Ten- to twelve-year-olds were asked their perceptions of traffic, strangers, road safety and sporting venues, and their perceptions of their parent's views on these issues. Results. Five- to six-year-old boys whose parents believed there was heavy traffic in their area were 2.8 times more likely (95%CI = 1.1–6.8), and 5- to 6-year-old girls whose parents owned more than one car were 70% less likely (95%CI = 0.1–0.8), and whose parents believed that public transport was limited in their area were 60% less likely (95%CI = 0.2–0.9) than other children to walk or cycle at least three times per week. Parental belief that there were no lights or crossings was associated with walking or cycling among 10- to 12-year-old boys (OR = 0.4, 95%CI = 0.2–0.7). Among older girls, parent's belief that their child needed to cross several roads to reach play areas (OR = 0.4, 95%CI = 0.2–0.8) and that there is limited public transport in their area (OR = 0.7, 95%CI = 0.4–0.97), and child's belief that there were no parks or sports grounds near home (OR = 0.5, 95%CI = 0.3–0.8) were associated with a lower likelihood of walking or cycling. Conclusion. Perceptions of the local neighborhood may influence children's physical activity.

Local total and radiative heat-transfer coefficients during the heat treatment of a workpiece in a fluidised bed

The heat-transfer coefficients around a workpiece immersed in an electrically heated heat treatment fluidised bed were studied. A suspension probe designed to simulate a workpiece of complex geometry was developed to measure local total and radiative heat-transfer coefficients at a high bed temperature. The probe consisted of an energy-storage region separated by insulation from the fluidised bed, except for the measuring surface, and a multi-thermocouple measurement system. Experiments in the fluidised bed were performed for a fluidising medium of 120-mesh alumina, a wide temperature range of 110–1050 °C and a fluidising number range of 1.18–4.24. It was found that the workpiece surface temperature has a more significant effect on heat transfer than the bed temperature. The total heat-transfer coefficient at the upper surface of the workpiece sharply decreased at the start of heating, and then steadily increased as heating progressed, while a sharp decrease became a rapid increase and then a slow increase for the radiative heat-transfer coefficient. A great difference in the heat-transfer coefficients around the workpiece was observed.

Victorian local government and women's political participation in small towns.

Rural women were involved in the struggle for women's suffrage in Victoria but their entry into local government has been slower than in urban centres. This paper takes as its starting point Ken Dempsey's analysis of the hegemonic masculine structure of small Victorian towns in the 1980s and Amanda Sinclair's notion of the maternal feminist being the prototype of the rural woman councillor at that time. My study, which is based upon a qualitative interview study with 12 women councillors across rural Victoria during February 2004, reveals that women in small towns are now much more likely to challenge the notion of masculine hegemony by playing a more proactive role in community affairs in small towns. For them, local government service is a logical and practical way to help improve the quality of life in their constituencies. This is also because the traditional rural definition of local government with its main function to ensure adequate infrastructure provision for its ratepayers to maintain viable farming and other productive operations is changing. Furthermore, these women challenged the notion of the maternal feminist by embracing broader political agendas and operating with different representational styles than those associated with previous generation of women on local councils in small towns. On a theoretical level, the paper concludes by suggesting that while the notion of a 'critical mass' in terms of women's political participation is important, there is also a need to explore women's accounts of ‘critical acts’ in the everyday decision-making of local government.

Australia local government and e-governance : from administration to citizen participation

This chapter analyses local government’s response to the pressure to modernise its structures through its use of Information Communication Technologies (ICT) to execute its broad range of tasks. The chapter begins by discussing Chadwick and May’s (2003) three basic models of e-government; managerial, consultative and participatory. Using data collected from an analysis of 658 local government websites in Australia together with existing survey research the chapter then analyses the extent to which local government sites fit into the three models. The chapter concludes with a discussion of the issues and problems faced by local government in its attempt to develop e-governance as both an extension of administrative as well as democratic functions.

Freedom of political communication, public officials and the emerging right to personal privacy in Australia

In recent times Australian courts have demonstrated a willingness to fashion a right to personal privacy at common law. The Australian Law Reform Commission has noted this impOt1ant development and said it was likely to continue in the absence of legislative action in the area. The aim of this article is to outline a theoretical framework to underpin and inform the development of this emerging right - howsoever framed - and the extent to which it is possible for the law to provide meaningful privacy protection to public officials under the Constitution.

Study of the Geelong Local Learning and Employment Network

In common with many Western nations, Australian governments, both state and federal, have increasingly embraced network-based approaches in responding to the effects of globalisation. Since 2001, thirty one Local Learning and Employment Networks (LLEN) have been established across all areas of Victoria, Australia in line with recommendations of a Ministerial Review into Post Compulsory Education and Training Pathways. That review reported that, in the globalised context, youth in transition from schooling to independence faced persistent and severe difficulties unknown to previous generations; it also found problems were frequently concentrated in particular groups and regions. LLEN bring together the expertise and experience of local education providers, industry, community organisations, individuals and government organisations. As a result of their local decisions, collaboration and community building efforts it is intended that opportunities for young people will be enhanced. My research was conducted within an Australian Research Council Linkage Project awarded to Deakin University Faculty of Education in partnership with the Smart Geelong Region LLEN (SGR LLEN). The Linkage Project included two separate research components one of which forms my thesis: a case study of SGR LLEN. My data was generated through participant observation in SGR LLEN throughout 2004 and 2005 and through interviews, reflective writing and archival review. In undertaking my analysis and presenting my thesis I have chosen to weave a series of panels whose orientation is poststructural. This approach was based in my acceptance that all knowledge is partial and fragmentary and, accordingly, researchers need to find ways that highlight the intersections in and indeterminacy of their empirical data. The LLEN is -by its nature as a network -more than the contractual entity that gains funding from government, acts as the administrative core and occupies the LLEN office. As such I have woven firstly the formation and operational structure of the bounded entity that is SGR LLEN before weaving a series of six images that portray the unbounded LLEN as an instance-in-action. The thesis draws its theoretical inspiration from the work of Deleuze and Guattari (1987). Despite increased use of notions of networks, local decision-making and community building by governments there had been little empirical research that explored stakeholder understandings of networks and their role in community building as well as a lack of theorisation of how networks actually ‘work.’ My research addresses this lack and suggests an instituted network can function as a learning community capable of fostering systemic change in the post compulsory education training and employment sector and thereby contributing to better opportunities for young people. However the full potential of the policy is undermined by the reluctance of governments to follow through on the implications of their policies and, in particular, to confront the limiting effects of performativity at all levels.