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We consider the history of woodland clearing in central western New South Wales, Australia, which has led to the present highly cleared and fragmented landscape. A combined approach is used examining available historical land‐use data and using regression analysis to relate the pattern of cleared and wooded areas in the recent landscape to environmental variables, taking into account the contagious nature of clearing. We also ask whether it would be possible to apply a simple simulation modelling approach to reconstruct a credible historical sequence of clearing in the study area. The historical data indicate that annual clearing rates have varied substantially in the study area and selective tree removal (ringbarking and thinning) has been common. These findings make it unlikely that a simple simulation approach would replicate the spatial and temporal sequence of woodland loss. Our regression results show that clearing patterns can be related to environmental variables, particularly annual rainfall and estimated pre‐European vegetation type, but that patterns are dominated by contagion.  相似文献   
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Maciuika  John V. 《German history》2007,25(4):490-516
In the opening years of the twentieth century, the German homeassumed new cultural meanings and symbolic significance as asite of economic, political, artistic, and social intervention.This article investigates a range of Wilhelmine institutions—fromthe Wertheim department store and the Prussian Commerce Ministry,to the Applied Arts Movement and the Movement for Art Education—toillustrate the variety of German approaches to promoting newconceptions of the home. Examining the ways in which Wilhelmineprivate and state reformers turned the topic of how one livedand dwelled into a topic of pressing significance, the articleargues that private, commercial efforts and state-driven policyinitiatives interpenetrated to a degree previously underappreciatedin Wilhelmine historical studies. These private and state initiativeswere, in turn, closely tied to the cultivation of German consumeridentities, and to larger efforts on the part of Wilhelmineinstitutions to adapt to the dizzying conditions of twentieth-centurycapitalist modernity. As a result of these developments, specialexhibitions of artistic home interiors originated in premierGerman department stores as well as in the halls of the statebureaucracy; historical ornaments termed ‘modern’in one decade were denigrated as barbaric in another; and generationsof craftsmen battled one another for a legitimacy conferred,to a significant degree, by private commissions, generous statesubsidies, and admission into prestigious exhibitions.  相似文献   
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This study, the first of this kind, reconstructs the technical chaîne operatoire of thin‐walled jointless gold bead production in the Maykop culture on the basis of trace‐wear analysis, experimental research and comparative analysis, using gold beads from the Early Bronze Age dolmen (c. 3200–2900 bc ) in kurgan 2 at Tsarskaya (discovered in 1898). The results of the study demonstrate that such beads were produced from a perforated disc‐shaped blank by pressure (with intermittent annealing) within a hemispherical depression in a shaping block (presumably made from stone or bone) and subsequent abrasive treatment of the surface. Most probably, this technique was a regional expression of Near Eastern jewellery traditions that emerged within the urbanized centres of Upper Mesopotamia in the early fourth millennium bc and spread out, through the Caucasus, into the southern boundaries of the Eurasian steppe.  相似文献   
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Finishing techniques are significant markers of the technological ‘know‐how’ involved in the production of the traditional, clay‐based ceramic ware. In order to provide a reliable tool to discriminate among two main surface processing techniques—that is, smoothing and burnishing—vertical scanning interferometry (VSI), a recently developed non‐destructive technique for analysing the surface roughness and topography, is applied. The smoothed areas have an obvious roughness expressed by linear structures. The latter are made of parallel ridges and trenches with an average depth of 15–20 μm. Burnishing leads to a lower topography and a lower roughness compared to the smoothed surface section. VSI quantifies the spatial distribution of the surface building blocks, which consist of phyllosilicate aggregates of variable size. The statistical treatment of the roughness data obtained by VSI shows that the surface topography provides significant information on the pottery processing and a clear qualitative and quantitative discrimination between different surfaces. VSI supports the reconstitution of the chaîne opératoire for traditional ceramic pottery and the recognition of the surface finishing techniques.  相似文献   
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