Geometric and material constraints in parametric modelling : the design to fabrication process

Parametric modelling, commonly used in the automotive and aerospace industries, has recently been adopted in the architecture and construction fields. The ability to design small repeatable components and apply them to a larger governing surface geometry is one area of parametric modelling that has great design potential. This two level modelling control, of component and overall surface, can allow designers to explore new types of form generation subject to parametric constraints. This paper reports on the design to fabrication process using repeatable components over a governing or carrier surface. The paper reports on our study of the requirements and possible solutions for successfully controlling a repeatable element, known as a Representative Volumetric Element (RVE), using geometric parameters of a larger governing surface geometry and material properties. This modelling process, coupled with Rapid
Manufacturing (RM) and Computer Numerically Controlled (CNC) machines has the potential to significantly reduce the interface between design and fabrication.

Complexity and learning behaviours in product innovation

Successful product innovation and the ability of companies to continuously improve their innovation processes are rapidly becoming essential requirements for competitive advantage and long-term growth in both manufacturing and service industries. It is now recognized that companies must develop innovation capabilities across all stages of the product development, manufacture, and distribution cycle. These Continuous Product Innovation (CPI) capabilities are closely associated with a company’s knowledge management systems and processes. Companies must develop mechanisms to continuously improve these capabilities over time.  Using results of an international survey on CPI practices, sets of companies are identified by similarities in specific contingencies related to their complexity of product, process, technological, and customer interface. Differences between the learning behaviors found present in the company groups and in the levers used to develop and support these behaviors are identified and discussed. This paper also discusses appropriate mechanisms for firms with similar complexities, and some approaches they can use to improve their organizational learning and product innovation.

A factor-augmented VAR approach : the effect of a rise in the US personal income tax rate on the US and Canada

In this paper a factor-augmented vector autoregressive (FAVAR) model is estimated to characterize the dynamic effects of shocks in the personal income tax rate in the United States on United States and Canadian economies. The representation and the estimate of the FAVAR model is based on Stock and Watson (2005) and the shocks are recovered applying the identification scheme proposed by Bernanke et al. (2005); this method allows impulse response functions to be generated for all the variables in the dataset and provides a description of the domestic and international transmission mechanisms of United States movements in the personal income tax rate. A distinguishing feature of our model is the disaggregation of traded goods sector where imports and exports are disaggregated into 12 and 13 industries, respectively. This provides extra information on the domestic and international transmission mechanism across the two countries. The results show that the FAVAR approach generates a reasonable characterisation of the effects of United States movements in the US personal income tax rate on the United States economy and its transmission to the Canadian economy.

Staying healthy : the case of cotton and cane growers in Australia

Farmers and fishers have always been exposed to the vagaries of climate and global economic forces. However, in recent years there has been an accumulation of factors which are having a particularly severe impact upon rural Australia. The global financial crisis has negatively affected commodity prices and the viability of some rural communities is under threat. There is evidence to suggest that climate change is already impacting adversely on many primary producers and their ability to farm using traditional methods. Furthermore, many parts of rural Australia are still experiencing the effects of long-term drought and associated problems. Together, these circumstances can rightly be conceived of as 'difficult times'. Key areas recently identified in a decline in mental health among farmers include: increasing isolation, ongoing drought, increased government regulations, and a widening of the schism between urban and rural Australians. While there is a body of literature on behaviour around illness in the context of the stress of ' difficult times', there is little on preventative behaviours in these circumstances. This chapter reports preliminary findings from an exploratory research projects that investigates the process by which farmers and fishers achieve and maintain good physical and mental health in the context of 'difficult times'. The research takes a multiple case study approach, with five Australian sites, each with a different industry base, representing communities undergoing 'difficult times'. This chapter focuses on two of the sites and data obtained from interviews with farmers in the cotton and sugar industries. It discusses the behavioural choices that they make to maintain good physical health and mental wellbeing. These include choices about nutrition, physical activity, social connections such as participation in community, social or farm-related groups, opportunities for relaxation and regular medical check-ups.

Machinability assessment and surface integrity characteristics of Austempered Ductile Iron (ADI) using ultra-hard cutting tools

The application of austempered ductile iron (ADI) is gaining an ever greater share of the worldwide ferrous product market, specifically centering on the aerospace, automotive and shipping industries. ADI is a heat treated cast iron, which exhibits remarkable mechanical properties and provides an attractive material for designers and engineers to displace conventional materials. Previous attempts, however, to machine ADI using carbide or ceramic cutting tools produced poor tool life characteristics due to the relatively poor machinability of the workpiece. This paper presents a research study that has applied the advanced technology of modern ultrahard cutting tools, in an attempt to achieve enhanced machinability performance. This performance was evaluated through the analysis of cutting forces, tool wear, surface finish and roundness.

Hindi cinema and its other

 Wider understandings of popular, commercial Hindi (Indian) cinema centre on discourses surrounding the ‘Bollywood’ machine. In these discussions, a critical exploration of Adivasi (Indigenous) representation in Hindi cinema is often left unexplored. Popular Hindi cinema as a World Cinema exerts tremendous influence in India, and indeed South Asia. However, it continues to provide essentialist representations of Adivasi communities in India. This paper discusses some of these representations in commercial Hindi cinema, by looking at examples of film texts with Adivasi characters. It also examines the difficulties involved in cinematic representations which are blind to multiple identities within the nation-state, in this case, how Adivasis are constructed within popular Hindi cinema as the ‘Other’, to an already existing ‘Other’ subaltern (Indian) mass.
This paper additionally explores some examples of how, rather than be ‘swamped’ by Hindi film’s cultural dominance, local audiences, particularly in Adivasi communities, are negotiating with it to their advantage. It is in these peripheral and under-represented communities, that local media traditions are blending with popular Hindi cinema to produce creative results. How such results are re-invigorating the Adivasi film and music industries is examined.

Integrating agriculture and food policy to achieve sustainable peri-urban fruit and vegetable production in Victoria, Australia

Efforts to increase fruit and vegetable consump­tion are a significant aspect of national approaches to preventive health. However, policy frameworks for increasing fruit and vegetable consumption rarely take an integrated food-systems approach that includes a focus on production. In this policy analysis and commentary we examine fruit and vegetable production in peri-urban areas of Melbourne in Victoria, Australia, and highlight the significance of emerging environmental and eco­nomic pressures on fruit and vegetable production. This examination will be of interest to other locations around the world also experiencing pressure on their peri-urban agriculture. These pressures suggest that the availability and afforda­bility of fruit and vegetable supplies cannot be taken for granted, and that future initiatives to increase fruit and vegetable consumption should include a focus on sustainable production. Threats to production that include environmental pressures, together with the loss and cost of peri-urban agri­cultural land and a cost-price squeeze due to rising input costs and low farm-gate prices, act in combi­nation to threaten the viability of the Victorian fruit and vegetable industries. We pro­pose that policy initiatives to increase fruit and vegetable consumption should include measures to address the pressures facing production, and that the most effective policy responses are likely to be integrated approaches that aim to increase fruit and vegetable availability and affordability through innovative solutions to problems of production and distribu­tion. Some brief examples of potential integrated policy solutions are identified to illu­strate the possibilities and stimulate discussion.

Australian cultural and innovation policies: never the twain shall meet?

 In recent years, Australian cultural policy-makers have begun to pay more attention to innovation policy. Several of the Australian states specifically address issues of innovation in their formal cultural policies, and the Australia Council for the Arts has published an Innovation Strategy which purports to constitute 'a coordinated approach to supporting creativity as one of Australia's most valuable assets' (Australia Council 2006).

However, despite this prima facie policy commitment to supporting and fostering innovation in the arts and cultural industries, there remains a disconnect between cultural and innovation policies in Australia. On the one hand, cultural policies in Australia are confused and incoherent in their approach to cultural innovation, and many policy settings as they apply to cultural industries are antithetical to the aims of fostering innovation and R&D. Meanwhile, innovation policies continue to pay only marginal attention to the creative arts and cultural industries. This disconnect will be briefly examined in three fields of cultural policy: arts and cultural funding; copyright and intellectual property policy; and broadcast media policy.

It is argued that rather than promoting innovation, existing policy frameworks in all three areas, when not specifically framed around the protection of vested interests, are often contradictory and inimical to the disruptive influence of innovative artists, technologies and firms. Possible reasons for the disconnect include pragmatic matters of busy ministers and low policy priorities, and conceptual confusion over the status and value of culture.

Workers’ compensation and mental health : examining the mental health impacts of involvement in the Victorian Work Cover system from the perspective of long-­term injured workers

The project aimed to explore long--term injured workers’ experiences and perceptions of their mental health as they progressed through the Victorian WorkCover process. The purpose of the project was to assist in understanding these factors in order to identify how workers might be better supported, and to identify changes that compensation authorities, employers and unions can make to reduce mental distress amongst injured workers. As a project based on workers’ accounts of their experiences, it aimed to provide a narrative basis for the development of supportive policy and practice to reduce mental distress amongst people who are clients of the WorkCover system. The project was a qualitative study based on fifteen in--depth interviews with people who had been injured at work and who had been off work for at least six months. The workers who took part in the study were recruited with the assistance of their trade unions, using an advertisement that was distributed via the unions’ regular communication channels. Workers were asked to tell their story of injury and recovery with a particular focus on how they felt and the factors that affected them, both positively and negatively. They were also asked what could or should be changed to support workers’ recovery and improve their experience of the WorkCover system. The workers who took part in the study came from a variety of industry sectors (education, textile and clothing manufacturing and meat industries) and different occupational categories (professional, trade/technical and manual). They included people whose primary injury was physical and those whose primary injury was psychosocial.

Primary prevention of latex related sensitisation and occupational asthma : a systematic review

Eight primary prevention intervention studies on natural rubber latex (NRL) published since 1990 were identified and reviewed. This is the largest evidence base of primary prevention studies for any occupational asthmagen. Review of this small and largely observational evidence base supports the following evidence statement: Substitution of powdered latex gloves with low protein powder‐free NRL gloves or latex‐free gloves greatly reduces NRL aeroallergens, NRL sensitisation, and NRL‐asthma in healthcare workers. Evidence in support of this statement is ranked SIGN level 2+, referring to well conducted case‐control or cohort studies with a low risk of confounding, bias, or chance and a moderate probability that the relationship is causal. Substitution of powdered latex gloves with low protein powder‐free NRL gloves or latex‐free gloves promises benefits to both workers' health and cost and human resource savings for employers. This message should be broadly disseminated beyond the hospital sector to include other healthcare settings (such as aged care facilities) as well as food service and other industries where latex gloves might be used.