Pigments, dyes, and black enamel—the colorants of reverse paintings on glass

Nondestructive analyses of medieval reverse paintings on glass revealed the same dyes and pigments customarily used in panel paintings. However, there is one exception: the black colorant is not a carbon-based pigment, but black enamel. In this respect, the stylistic as well as the technical influence of stained glass artwork can clearly be seen on reverse paintings on glass. However, there is a crucial difference: in reverse paintings, the black enamel is not fired onto the glass but painted (cold painting). Additional analyses confirmed these findings. Based on these results, the art form “reverse painting on glass” has technically to be characterized as a mixture of “stained glass” and “panel painting” that nonetheless develops into a genre of its own.     

The 2010 independence jubilees: the politics and aesthetics of national commemoration in Africa

In 2010, as many as seventeen African states celebrated their independence jubilees. The debates surrounding the organisation of these celebrations, and the imagery and performances they employed, reflect the fault lines with which African nation‐building has to contend, such as competing political orientations as well as religious, regional and ethnic diversity. The celebrations represented constitutive and cathartic moments of nation‐building, aiming to enhance citizens' emotional attachments to the country and inviting to remember, re‐enact and re‐redefine national history. They became a forum of debate about what should constitute the norms and values that make‐up national identity and, in the interstices of official ceremonies, provided space for the articulation of new demands for public recognition. A study of the independence celebrations thus allows us to explore contested processes of nation‐building and images of nationhood and to study the role of ritual and performance in the (re)production of nations.     

Decentralization,the State and Conflicts over Local Boundaries in Northern Ghana

Decentralization projects, such as that initiated by the Rawlings government in Ghana at the end of the 1980s, create a political space in which the relations between local political communities and the state are re‐negotiated. In many cases, the devolution of power intensifies special‐interest politics and political mobilization aiming at securing a ‘larger share of the national cake’, that is, more state funds, infrastructure and posts for the locality. To legitimate their claims vis‐à‐vis the state, civic associations (‘hometown’ unions), traditional rulers and other non‐state institutions often invoke some form of ‘natural’ solidarity, and decentralization projects thus become arenas of debate over the boundaries of community and the relationship between ‘local’ and national citizenship. This article analyses one such debate, in the former Lawra District of Ghana's Upper West Region, where the creation of new districts provoked protracted discussions, among the local political elite as well as the peasants and labour migrants, about the connections between land ownership and political authority, the relations between the local ethnic groups (Dagara and Sisala), and the relevance of ethnic versus territorial criteria in defining local citizenship.     

Was bedeutet “Entschuldigung”? Die Überlebenden medizinischer NS‐Verbrechen und die Max‐Planck‐Gesellschaft

The Meaning of “Apology”: The Survivors of Nazi Medical Crimes and the Max Planck Society. Around the turn of the twenty‐first century a new practice in international politics became established: representatives of political, economic and religious organisations apologised for the historical and political crimes of their own collectives, addressing the victims or the victims' descendants. At a public event in Juni 2001, a formal apology of this kind was made by the president of the Max Planck Society (MPS), who had previously launched an extensive programme of research into the National Socialist history of what was then the Kaiser Wilhelm Society. The majority of the eight invited survivors of human experimentation in Nazi concentration camps refused forgiveness. Instead, they called for the MPS not to content itself with historical research and analysis, but to ensure the continued remembrance of the victims and their suffering. Starting from this 2001 ritual of repentance, the paper examines the participants' diverse views of how to deal with the medical crimes of National Socialism, and asks about possibilities of going beyond historical retrospection to fulfil the imperative of remembrance.     

Performing the national territory: The geography of national‐day celebrations

The nation is a relatively abstract imagined community that is visualised through a variety of symbols as well as communicative and performative practices. In this paper, we explore how the national territory, one of the foundations of the nation‐state, is performed on national‐day celebrations and brings the nation into being. Drawing on ethnographic research on national days in Burkina Faso, Côte d'Ivoire and Ghana, we show how the state's internal administrative divisions and ethnic differences are at once made explicit but also subordinated to the nation. Moreover, we show how in such celebrations, potentially disruptive or competing affiliations such as ethnicity and regional loyalties are re‐imagined. Both the rotation of the central celebration and its replication all over the national territory carry the nation into the regions and integrate the regions into the nation‐state. The ‘co‐memoration’ turns participants and spectators from locals into national compatriots and thus not only performs nationality but also performs the relationship among nation, state and citizen, set within a particular territory.     

The money tree: Exploring central bank digital currency blockchain imaginaries

Central banks worldwide are developing, piloting and launching new central bank digital currencies (CBDCs). As the hub for the central banking community, the Bank for International Settlements (BIS) promotes a curiously botanical CBDC imaginary. From ‘money flowers’ to ‘tree trunks’ and a ‘strong canopy’, This helps to naturalize CBDC without clarifying its sociopolitical implications or envisioned monetary future, such as geopolitical tensions and financial fragmentation, new modes of financial interaction or the strengthened role of central banks. While omitting the paradoxes and ambivalences of CBDC, the imaginary of the BIS structures the enfolding discourses and allows the bank to function as a think tank for financial policy-making.     

Spatial Governance across Borders Revisited: Organizational Forms and Spatial Planning in Metropolitan Cross-border Regions

In Europe, cross-border cooperation in spatial planning has intensified in recent years. Organizations with varying institutional characteristics have emerged in urban areas that cross a national border. They deal with problems stemming from the cross-border situation. The institutional and spatial aspects of organizations on the sub-national level in nine European cross-border metropolitan regions are compared in this article. The analytical concept of metropolitan governance applied here takes into account the simultaneous existence of different cross-border organizations as well as their spatial and functional relationships. Subsequently, this article assesses the impact of governance on spatial planning in two cases, Basel and Lille, where institutional changes occurred on the sub-national level between 2000 and 2010. The way organizational and spatial attributes of new forms of cross-border metropolitan governance influence the coordination of spatial policies is discussed here. The comparison of organizational characteristics and capacity to coordinate reveals important differences. Furthermore, comparing spatial scales shows how new cross-border perimeters are drawn along existing national territories. Organizations' competences and interests are decisive for the coordination and implementation of spatial policies.     

Exceptional rates of dental caries in a scandinavian Early Iron Age population—A study of dental pathology at Alvastra, Östergötland,Sweden

The dental status of Early Iron Age agricultural populations in Sweden has not been extensively documented. The aim of this study was to record caries status in human remains from an Early Iron Age burial ground, Smörkullen, at Alvastra, Östergötland, Sweden. The study included 96 adults and 50 subadults and comprised 1794 permanent teeth in the adults and 468 permanent and 221 deciduous teeth in the subadults. The caries frequency was exceptionally high, afflicting most of the adults (92.6%): 46.2% of the teeth examined showed signs of caries disease. Most of the lesions were shallow. However, around 60% of the adult individuals had moderate and severe lesions, which probably had an immediate impact on health. Lesions were most common in the cervical region and this is probably related to dietary patterns where the starchy, sticky food tended to accumulate around the necks of the teeth. Children showed low caries frequency, whereas most juveniles (91.7%) were affected. Most of the teeth with alveolar bone loss showed no signs of cervical or root caries lesions. However, in cases of moderate and severe loss of alveolar bone, seen mostly in the older age group, the frequency of cervical and root lesions was higher. Few initial caries lesions were observed, indicating an aggressive pattern of disease in this population. The lack of gender‐related differences suggests that the diet was similar for both sexes, across all age groups. Copyright © 2010 John Wiley & Sons, Ltd.