On-site Radioscopic Qualitative Assessment of Historic Timber Structures: Identification and Mapping of Biological Deterioration of Wood

The recent development of portable, battery-charged x-ray tubes and digital detectors has made digital radioscopic examination of wooden buildings a realistic option. Lack of experience with the often very complex radiographs of building structures makes the interpretation of such radiographs difficult. A set of radiographs of wood in different, identified conditions was established for use when interpreting radiographs of wood in unknown condition.

This article presents radiographs of a trestle-framed building. The recordings were done in areas where the condition of the wooden elements was known in advance, either on the basis of dendrochronological drill samples or because the building element had been replaced recently and the wood was sound. The radiographs were compared with NIKU´s collected guideline radiographs and discussed with respect to the information they provide about the wood’s condition. Finally, we discuss radioscopy as a supplement to traditional methods of building surveying.

The authors took all of the photos and radiographs (©NIKU). The radiographs are shown as “shadow” images—materials of higher density are seen lighter than materials of less density, as long as they are of same thickness.     

Spatial restructuring of old industrial areas: Polish and former East German experiences

>This paper compares and contrasts the policy initiatives and the likely policy fortunes of two older, and heavily polluted, industrial regions — Upper Silesia in Poland and the Leipzig‐Halle district of the former East Germany. The involvement of local communities in the self‐regulation of structural planning is advocated in favour of state‐regulated planning, a version of which degraded these areas.     

Rural Strategies for Coping with the Spatial Unevenness in the Knowledge Society

Knowledge has long been a motor for societal development. However, the way knowledge is produced, distributed and applied has changed considerably and is regionally differentiated. In this paper, it is argued that different types of spatial profiles are discernable at the broader, national level: (i) Prominent hubs emerge, influenced by the knowledge society. (ii) The knowledge society expands to rural areas, being located between metropolitan regions, forming corridors of development. (iii) Regions with a knowledge society deficit, which might be perceived as a sort of “novel periphery”, remain. Drawing on examples from Germany, this paper examines rural regions which can be seen to fit with these profiles, revealing how planning paradigms change in the knowledge society and how spatially sensitive stakeholders can and do use knowledge as a strategic resource.     

Metal Use and Production among Coastal Societies of the Atacama Desert*

In this paper, we focus on the study of metal objects associated with populations living on the northern coast of Chile in the Late Intermediate and Late periods (c. ad 1000–1550). Our contribution is based on morphometric and physico‐chemical (ICP–AES, PIXE and metallographic sections) analyses of the quintessential coastal metal object: the fish‐hook. This study is part of a broader investigation that seeks to understand the organization of mining – metallurgical production systems and their relation with coastal economies and ways of life. We distinguish at least two different traditions, one associated with the Western Valleys area and one with the Arid Desert Coast. These findings expand our understanding of Andean metal making. Furthermore, the presence of a metallurgical tradition within the highly mobile hunter–gatherers of the most arid coast of South America is of great anthropological significance.