Creating Space for the Successor: The Discourse Strategies of Pro- and Anti-GM Factions Regarding the Future of Agriculture in New Zealand

A struggle between different forms of food production for the future of agriculture space has been occurring in many regions of the world. Drawing on the literature of the geography of food and the theory of productive worlds, we propose that the discourse strategies deployed by competing actors should be considered part of the set of conventions that guide productive activities. Two examples of discourse strategies are outlined: the use of articulation to position a desired outcome within a historically resonant discourse in order to gain legitimacy; and the maintenance of a strategic tension between isomorphism and differentiation such that a stance is perceived as a credible choice. We describe and map the impacts of these discourse strategies as they were deployed by anti- and pro-genetic modification groups in the struggle to become the “natural” successor to New Zealand's conventional agricultural heritage. The shifts in discourse positions of the two protagonists highlight the increased hybridity and regional complexity of the worlds of food and the battle for agricultural space.     

Spot On: The Role of Political Advertising in Australia

During an election campaign, political advertising is not the only means by which the Australian political parties seek to persuade voters but it is 'the most expensive one, perhaps the most precise one and the only one over which the parties have complete control' (Mills 1986, 132). Over $30m is now spent on advertisements during federal elections, with up to 70% of the major parties' campaign budgets devoted to television advertising alone. When one considers that 90% of Australians are exposed to televised political advertising, the parties' control over these messages takes on particular significance. This article explores the apparently limited interest among academic analysts in political advertising in Australia, explains that advertising now has a central role in the political process and argues that this needs to be recognised in scholarly research.     

X-ray microtomographic imaging of charcoal

We assess the potential of X-ray microtomography as a tool for the non-destructive, three-dimensional examination of the internal structure of charcoal. Microtomographic analysis of a series of charcoals produced by the experimental pyrolysis of pine wood at temperatures from 300 and 600 °C in nitrogen only and in nitrogen mixed with 2% oxygen indicates that, despite substantial shrinkage, observed porosity, pore size and pore connectivity are all increased by pyrolysis and also by chemical oxidation. Analysis of a number of altered and unaltered archaeological and geological charcoals has demonstrated the capacity of the technique to identify and map the distribution of authigenic mineral contamination within charcoal fragments. The results are of significance to radiocarbon dating in that they provide insights into the mechanisms by which charcoal can be contaminated by extraneous carbon in the natural environment.     

Synchrotron radiation-based x-ray analysis of bronze artifacts from an Iron Age site in the Judean Hills

Seven bronze bangles from Tell en-Nasbeh, northern Judah, were investigated to understand the phase composition and manufacturing process of the artifacts, and possibly suggest a provenance for their origin. Synchrotron x-ray radiation diffraction (XRD) and fluorescence (XRF) were used in the analysis to avoid any destructive sampling and at the same time penetrate through the surface into the core metal. These techniques enabled us to determine that the bangles were not just tin bronze, but leaded tin bronze. Based on excavation reports, it is unlikely that the metal objects were manufactured locally at Tell en-Nasbeh; rather, preliminary XRD and XRF data point towards the neighboring region of Edom as their origin. Despite their political enmity during the Iron Age II, the data suggest that Judahite social demands for bronze may have fostered a strong economic relationship between these two polities.