Sites of Social Centrality and Segregation: Lefebvre in Belfast,a “Divided City”

Abstract: This paper applies Henri Lefebvre's ideas on participatory democracy and spatial politics to the context of “divided cities”, a milieu often overlooked by scholars of Lefebvre. It considers, via Lefebvre, how the heterogeneous and contradictory statist methods to deal with ethno‐national violence in Belfast have in effect increased segregated space. State‐led approaches to public space as part of conflict transformation strategies appear contradictory, including attempts to “normalize” the city through inward capital investment and cultural regeneration, encouraging cosmopolitan notions of inclusive “civic identity”, and reinforcing segregation to contain violence. These processes have done little to challenge sectarianism. However, as Lefebvre suggests that dominant representations of space cannot be imposed without resistance, this paper considers the alternative strategies of a disparate range of groups in Belfast. These groups have formed cross‐cleavage networks to develop ritualized street performances which challenge the programming of public space for segregation.     

Getting Behind the Grain: The Politics of Genetic Modification on the Canadian Prairies

Abstract: In 2001 a coalition of actors including farm, consumer, health, environmental and industry organizations announced its opposition to Monsanto's attempts to commercialize GM wheat in Canada. Although this coalition consisted mostly of rural and agricultural groups, the three arguments that came to dominate the discourse advanced by the coalition seem, at first glance, to characterize a politics of consumption. These three arguments revolve around market acceptance, environmental risk, and the lack of democratic and transparent process in biotech regulation and policy. This paper argues that producer interests were not displaced by, but rather articulated alongside and through consumer‐driven discourses. In fact, farmers used claims about the supremacy of the consumer and impending environmental change to advance their vulnerable political and economic positions as producers of food.     

Two Early Archaic Shipwrecks at Kekova Adası and Kepçe Burnu,Turkey

During its annual surveys of the Turkish coast in the 1970s and 1980s, the Institute of Nautical Archaeology discovered two early Archaic (7th‐ to early‐6th‐century BC) shipwrecks at Kekova Adas? (Antalya region) and Kepçe Burnu (Mu?la region); Dokuz Eylül University's Institute of Marine Science and Technology is currently involved in survey of the region. The wrecks, marked by a primary cargo of basket‐handle amphoras, indicate exchange between Cyprus and the cities of coastal Asia Minor and Corinth. Such Iron Age internationalism may have been driven by an interest in processed agricultural goods such as olive oil. © 2010 The Authors     

A 16th‐Century Ship‐Find from Amager Beach Park,Denmark: description and preliminary interpretation

When establishing the new Amager Beach Park near Copenhagen, Denmark, a small clinker‐built ship dating to the 16th century (dendro‐dated to 1560–70) was discovered. The Viking Ship Museum in Roskilde excavated the wreck in 2004, and parts of the ship were later taken to the museum and recorded in 3D. This article describes the excavation and the documentation, and presents the preliminary interpretation of the ship‐find. The ship is interpreted as a small cargo vessel, probably carrying two masts. Its hull‐form indicates that the vessel was specially designed for navigating the waters of the Sound between Denmark and Sweden. © 2010 The Author     

Precipitation patterns formed by self‐organizing processes in porous media

We compare laboratory and field examples of self‐organized mineral precipitates in porous media. Laboratory tests of silver chromate precipitation in glass beads and glass bead/gel mixtures produce structures such as periodic banding and mm‐size spherules. These are morphologically similar to the varied forms of iron oxide precipitates in the Jurassic Navajo Sandstone, Utah USA, that preserve records of former fluid redox boundaries in a porous and permeable sandstone. Experimental studies of periodic precipitates in porous media can provide valuable insight for understanding the diagenetic history of similar precipitates in natural environments.     

The Policy Sciences of Social Media

Twitter, Facebook, and other social media are increasingly touted as platforms not merely for networks of friends and for private diversion, but as vehicles that allow ordinary people to enter and influence the many arenas of public life. On the surface, the disparate and shapeless population of “i‐reporters,” policy “tweeters,” and anonymous news web site “commentators” would appear to challenge the comparatively well‐defined cast of professional diplomats, journalists, and propagandists that Harold D. Lasswell identified as policy‐oriented communicators. However, to illuminate the roles and impacts of social media in politics and policymaking, insights from Lasswell's “science of communication” must be embedded in Lasswell's broader lessons on value assets and outcomes. A closer look at the so‐called democratizing functions of social media in politics reveals the influence of powerful intermediaries who filter and shape electronic communications. Lasswell's insights on the likelihood of increased collaboration among political elites and skilled, “modernizing intellectuals” anticipates contemporary instances of state actors who recruit skilled creators and users of social media—collaborations that may or may not advance experiments in democracy. Lasswell's decision process concept is deployed to discover social media's strengths and weaknesses for the practicing policy scientist.     

Networks of Adjacent Action Situations in Polycentric Governance

Within the Institutional Analysis and Development (IAD) framework, the concept of an action situation generalizes a game to allow for endogenous changes in its rules. This article re‐visits this core concept to explore its potential for serving as the foundation for a systematic approach to the construction of more elaborate models of complex policy networks in which overlapping sets of actors have the ability to influence the rules under which their strategic interactions take place. Networks of adjacent action situations can be built on the basis of the seven distinct types of rules that define an action situation or by representing generic governance tasks identified in related research on local public economies. The potential of this extension of the IAD framework is demonstrated with simplified network representations of three diverse policy areas (Maine lobster fisheries, international development assistance, and the contribution of faith‐based organizations to U.S. welfare policy).     

Dynamics of Land Surface Temperature in Response to Land‐Use/Cover Change

In this study, we employed Geographical Information Systems and remote sensing techniques to investigate the impact of land‐use/cover change on land surface temperature (LST) in a rapidly urbanisation city, Kunming in south‐west China. Spatial patterns of LST and land use for 1992 and 2006 were derived from Landsat images to examine how LST responded to urban growth. Remote sensing indices were used to quantify land‐use types and employed as explanatory variables in LST modelling. The geographically weighted regression (GWR), a location dependent model, was performed to explore the influences of the spatially varied land‐use conditions on the LST patterns. Results revealed that rapid urbanisation in Kunming altered the local thermal environment, particularly in increasing the LST in the zone surrounding the urban core. Remote sensing indices demonstrated that water and vegetation played an important role in mitigating the urban heat island effect, while built‐up and barren land accounted for the increase in LST. The GWR improved the goodness‐of‐fit for LST modelling and provided insights into the spatially varied relationship between LST and land‐use conditions.     

Patterns of Nutrient Concentrations across Multiple Floodplain Surfaces in a Large Dryland River System

Deciphering patterns and inferring processes in multicausal floodplain river ecosystems is a challenge in river science. The effects of larger‐scale top‐down constraints and smaller‐scale bottom‐up influences on the spatial patterns of nutrient concentrations across multiple inset‐floodplain surfaces was studied in a large dryland floodplain river (Barwon‐Darling River, south‐east Australia). The distribution of sediment‐associated carbon, nitrogen, and phosphorus was primarily related with significant differences in the textural character of the different floodplain surfaces. Elevation of the different floodplain surfaces above the active channel was a secondary influence on the distribution of carbon and phosphorus. Combined, these factors produce a spatial patch mosaic of sediment associated carbon, nitrogen, and phosphorous across these floodplain surfaces.