INTRODUCTION: PROCESSES OF CHANGE IN URBAN SYSTEMS*

ABSTRACT The twenty‐first century will be one of intensified urbanization, on a scale never before experienced. How do urban systems and individual cities change and develop? The social sciences have many different approaches to analyzing the economic, social, and spatial dimensions of urban change. We inventory some of these approaches and their implications for public policy toward cities, urban change, and economic development.     

Influence of seabird guano and camelid dung fertilization on the nitrogen isotopic composition of field-grown maize (Zea mays)

Organic fertilizers have the capacity to alter the nitrogen isotopic composition of plants. Camelid dung and seabird guano are two potentially important fertilizers in the agricultural systems of western South America, particularly Peru and Chile. This paper presents isotopic data (δ¹³C and δ¹⁵N) from field grown plants (maize, Zea mays) fertilized with the following four treatments: CO (control, no fertilizer applied), AS (ammonium sulfate, a chemical fertilizer), DU (camelid dung), and SG (seabird guano). Plants were grown in experimental plots in the Virú Valley, northern Peru. Plants fertilized with the chemical fertilizer presented very similar isotopic compositions compared to the control. Conversely, the camelid dung fertilized plants were characterized by higher δ¹⁵N values compared to the control plants (by 1.8 to 4.2‰ depending on the plant part). The seabird guano fertilized plants were greatly enriched in ¹⁵N in comparison to the control plants (by 11.3 to 20.0‰). The results of this study have important implications for the reconstruction of human diet using isotopic data derived from bone collagen and related tissues, particularly in the prehispanic Andes, but also in Europe and North America during the 19th century, when Peruvian seabird guano was used extensively. Specifically, the interpretation of the relative contributions of plant and animal protein to the diet on the basis of bulk isotopic compositions of bone collagen (or similar tissues) may be confounded by camelid dung fertilization if the carbon isotopic compositions of the two sources are similar. Likewise, the interpretation of the relative contributions of maize and marine protein may be confounded by seabird guano fertilization.     

‘Iustitiam non includo’: Carl Schmitt, Hugo Grotius and the Ius Publicum Europaeum

Through a discussion of Hugo Grotius’ conception of just war, this essay shows that within his critique of liberalism, Schmitt clashed with the very intellectual tradition he claimed to represent. Both historically and philosophically Schmitt's concept of the Ius Publicum Europaeum was a mirage. Indeed, his concept of the political was a rejection of the moral and civil philosophy that sees politics as the world of active citizens and commonwealths arguing with each other about fundamental questions of justice and equity.     

Management skills for artists: ‘learning by doing’?

Although artists must usually be self‐reliant when managing their business, an artist’s education typically concentrates on artistic skills rather than managerial knowledge. This paper analyses the current curricula of 154 art institutions (public and private), focussing on the so‐called DACH countries (Austria, Germany and Switzerland). The results show a deficit in the implementation of economic and, especially, business‐related topics in the education of artists at art universities and institutions. A glimpse at Anglo‐American countries shows that, unlike in Europe, art schools are more open‐minded about implementing economic content into their curricula.     

Iskandar's Bibulous Business: Wine,Drunkenness and the Calls to the Sāqī in Nizāmī Ganjavī's Sharaf-nāma

The twelfth-century poet Nizāmī Ganjavī has produced his version of the adventures of Alexander as a unique composition mingling known Persian historiography and Qur'anic legends with unusual non-Islamic, especially Greek, elements in order to create his Iskandar-nāma (containing two parts, the Sharaf-nāma and the Iqbāl-nāma) as a synthesis of eastern and western cultures. A first point is the examination of the reasons behind the importance given to wine and drunkenness within the narrative. The poet has stressed this further by heading each chapter with a call to the sāqī. The essay examines the appositeness of the invocations with the episodes in the narrative, it analyses examples of wine imagery (containing references to medicine, to the mirror and to religion) and questions the relation between authorial persona, narrator and characters, examining in particular the famous teetotaler claim in one of the introductory chapters of the first part of the Iskandar-nāma.     

Water wizards: reshaping wet nature and society

The article investigates how humans ‘networked’ wet nature and how this affected the shaping of Dutch society. First, it takes a grand view of Dutch history and describes how wet network building intertwined with the shaping of the Dutch landscape, its economy and its polity. Second, it investigates the specific challenges of wet network building—integrating potentially conflicting uses of water into one design—for the case of the national fresh water supply network (1940–1971). Finally, it discusses ecological damage, emerging new risks and cultural patterns related to wet network building.