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.     

British nuclear weapons and NATO in the Cold War and beyond

NATO has been a source of influence on British nuclear policy and strategy since the 1950s. The nature and extent of its influence has, however, been kept limited by successive British governments. This article considers how and why this has happened. It discusses evolving British attitudes towards NATO command and planning, and shows how these were reflected with regard to strategic nuclear issues from the late 1950s. The evolution of the key notion that the United Kingdom is a second centre of nuclear decision within NATO is traced, and both its utility and contradictions are examined. Overall it is argued that, both during and since the Cold War, NATO has neither been a central factor in shaping British nuclear strategy and policy, nor have British nuclear weapons been other than of limited importance and relevance for most NATO members.     

The UN and the African Union in Mali and beyond: a shotgun wedding?

The United Nations (UN) and the African Union (AU) have collaborated in building a viable African Peace and Security Architecture and have worked together in a number of armed conflicts over the past decade. Examples include the peace operations in Burundi and Somalia, and the hybrid peace operation in Sudan's Darfur region which is perhaps the most prominent illustration of this collaboration. Although the UN Security Council authorized the intervention in Libya, which was approved by leading regional organizations (the Arab League, the Organization of the Islamic Conference and the Gulf Cooperation Council), it was opposed initially by the AU although the three African states in the Security Council voted for it. Relations cooled as a result and have grown colder still as the UN snubbed the AU and its initial efforts to engage in post‐conflict stabilization in Mali. While the AU sought to prove itself as a capable security provider and partner on the continent with its operation AFISMA, France's Opération Serval and the UN's peace operation for Mali, MINUSMA, bypassed the African Union. This article explores the underlying fault‐lines between the two organizations by examining interactions between the UN and AU since the latter's launch in 2002, but focusing on the Mali case. The fault‐lines emerging from the analysis are different capabilities, risk‐averse vs risk‐assuming approaches to casualties, diverging geopolitics and leadership rivalry.     

The commentariat and discourse failure: language and atrocity in Cool Britannia

Recent terrorist events in the UK, such as the security alerts at British airports in August 2006 and the London bombings of July 2005 gained extensive media and academic analysis. This study contends, however, that much of the commentary demonstrated a wide degree of failure among government agencies, academic and analytic experts and the wider media, about the nature of the threat and continues to distort comprehension of the extant danger. The principal failure, this argument maintains, was, and continues to be, one of an asymmetry of comprehension that mistakes the still relatively limited means of violent jihadist radicals with limited political ends. The misapprehension often stems from the language that surrounds the idea of 'terrorism', which increasingly restricts debate to an intellectually redundant search for the 'root causes' that give rise to the politics of com placency. In recent times this outlook has consistently underestimated the level of the threat to the security of the UK. This article argues that a more realistic appreciation of the current security condition requires abandoning the prevailing view that the domestic threat is best prosecuted as a criminal conspiracy. It demands instead a total strategy to deal with a totalizing threat. The empirical evidence demonstrates the existence of a physical threat, not merely the political fear of threat. The implementation of a coherent set of social policies for confronting the threat at home recognizes that securing state borders and maintaining internal stability are the fi rst tasks of government. Fundamentally, this requires a return to an understanding of the Hobbesian conditions for sovereignty, which, despite the delusions of post-Cold War cosmopolitan multiculturalism, never went away.     

POST‐MEDIEVAL CRUCIBLE PRODUCTION AND DISTRIBUTION: A STUDY OF MATERIALS AND MATERIALITIES*

This paper is concerned with the manufacture and trade of post‐medieval crucibles (14th–19th centuries). The analytical study of crucibles from different contexts in Europe and America employed optical microscopy and SEM–EDS, coupled with archaeological and historical data. We identified two major producers of crucibles, both of them in Central Europe, whose products appear widely distributed internationally. The analytical data allow an explanation of the technical reasons behind their superior reputation, as both crucible types shared comparable material properties, such as thermal, chemical and mechanical stability. Conversely, the two crucible types were radically different in their manufacture and appearance. We argue that, besides technical considerations, sensorial aspects such as texture and colour may have played an important role in the perception and choice of materials.     

Back to the future or forward to the past? Strengthening markets and rules for effective global energy governance

Current public policy debates on energy security are characterized by a singular focus on questions regarding access to resources. This lopsided attention to the geopolitical dimension of energy security is based on the myopic and erroneous presumption that global energy politics is necessarily a zero-sum game in which one country's energy security is another's lack thereof. In fact, debates deflect attention from the real issues that policy-makers should consider in their attempts to foster effective global energy governance—the central role increasingly international energy markets play in balancing demand and supply—and, even more importantly, the significance of the 'rules of the game' that structure these markets. This article makes a first attempt to apply a broader analytical lens by pointing out and analyzing the important role rules play in determining outcomes in international oil and gas markets; by examining how current trends are affecting the existing 'rules of the game'; and by highlighting consequences for public policy.     

The evolving quality of trade between Canada and the United States

This article examines the quality level of trade between Canada and the United States, 1979–2003, to investigate the relevance of staples theory for Canada. After disentangling the quality levels of trade, it is found that the pattern of quality-level trade changed significantly around the time free trade was established between Canada and the United States. Before free trade, Canada was moving into the lower end of quality, but after the establishment of free trade, Canada is now moving into the higher end of quality trade with the United States. This observation potentially means that Canada is moving out of the staples trap.