Estimation of Spatio-Temporal Correlations of Prehistoric Population and Vegetation in North America

We discuss a simple methodology to enable a statistical comparison of human population with the vegetation of North America over the past 13,000 years. Nonparametric kernel methods are applied for temporal and spatial smoothing of point data obtained from the Neotoma Paleoecology Database and the Canadian Archaeological Radiocarbon Database, which results in sequences of maps showing the development of population and different plant taxa during the Holocene. The estimation of smooth spatial and spatio-temporal cross-correlation functions is proposed in order to detect relationships between population and vegetation in fixed time intervals. Furthermore, the effects of varying environment on demographic changes as well as potential impacts of populations on plant taxa over time are analyzed. Pointwise confidence bands for cross-correlation functions are computed and a robustness analysis is performed to assess the significance of obtained results. Considering the example of oak, an interpretation of our results for eastern North America shows the value of this methodology.     

Saving and fearing Muslim women in ‘post-communist’ Poland: troubling Catholic and secular Islamophobia

Sexual politics play a key role in anti-Muslim narratives. This has been observed by scholarship problematising liberal feminist approaches towards ‘non-Western’ subjects focusing on countries such as France, the USA and the Netherlands. Yet interrogations into how these debates play out in European national contexts that are located outside of the European ‘West’ have attracted significantly less scholarly attention. Drawing on qualitative data collected in Poland this article aims to begin to fill this gap by analysing the centrality of feminist discourses within Islamophobic agendas in Poland. The article asks how discourses around women’s rights are mobilised simultaneously, and paradoxically, by both secular and Catholic groups in ‘post-communist’ Poland. By showcasing how feminist sentiments are employed by ideologically opposing groups, we sketch out some of the complexities in the ways Islamophobia operates in a Central and Eastern European context.     

The Mail-Coach Revolution: Landmarks in Travel in Germany Between the Seventeenth and Nineteenth Centuries

The mailcoach, more than any other mode of transport, has beenromanticized and portrayed as the epitome of old-fashioned travelfor Mr and Mrs Average. This idyllic picture dates from thegrowth of railway travel, which for ever altered perceptionsof earlier travelling patterns. In fact, before the coming ofthe railways things were very different. The introduction oftimetabled ordinari mailcoaches from the seventeenth centuryonwards brought about a transport revolution of entirely newproportions. The mail coaches were rapid, comfortable and reliable,and they brought about a new understanding of space and time.The expansion of travel enabled by the mail coaches opened thedoor to other new patterns of thought: the Enlightenment, andthe emancipation of ordinary people from the restrictions offeudal society. This new mode of transport reached its apotheosisin the early nineteenth century with the introduction of theexpress coaches and the rapid postal coaches. The overarchingprinciple, however, is that as the centuries pass, revolutionsin structures and infrastructures are the determining factorin enabling society to pass cultural milestones.     

Soil chemical identification of ten thousand years of prehistoric human activity areas at the Munsungun Lake Thoroughfare,Maine

Soils on a Palaeo-Indian to historic sequence in one Maine locale are analysed for chemical enrichment. To guide excavation of four discrete sites up to 4000 m², samples are collected in grid patterns and analysed for pH, Mg, P and Ca. Concentrations of Mg point to probable hearths to define some centres of human activity on each site. These correlate well with anomalies determined independently by magnetometric survey. Excavation of anomalies provides evidence of hearths, culturally diagnostic artifacts, but also features resulting from tree-throw and drainage variation. The P and Ca results develop definition and delimitation of activity areas thus refining directions for further excavation. Since P and Ca concentrations result from substantial or sustained human occupation, they show promise for preexcavation differentiation of habitation sites from limited and specialized activity sites such as lithic chipping stations. Soil chemical analysis provides both a synchronic and diachronic preview of site perimeters, size and activity areas. The consistent site definition at the Munsungun Lake thoroughfare is useful for explaining patterns as well as locating them.     

Tagungen und Kongresse

Tagungen und Kongresse

Tagungen und Kongresse     

Wissenschaftliche Photographie als visuelle Kultur. Die Erforschung und Dokumentation von Spektren

This paper discusses facets of 19th‐century scientific photography as a visual culture. The example of spectral research and documentation is particularly well suited, because prismatically diffracted light from the sun or from luminous gases was one of the most frequently examined phenomena of that century. The results were significant not only for physics but also for analytical chemistry and astrophysics. The spectrum also served as an ideal test object for checking the effectiveness of a wide array of photochemically sensitizable surfaces to the various color regions. Scientific photography became the most important experimental technique in the infrared and ultraviolet. H. A. Rowland's spectrum charts are discussed as an example of the transition from comprehensiveness in documentation to fetishism. The discussion of the Lippmann process, one of the first methods of color photography, addresses the associated training of the eye. Issues of authenticity and the much averred ?mechanical objectivity”? are raised with regard to retouching. The overriding theme of visual science cultures leads furthermore to unanticipated interdependencies with other scientific fields, such as geography, and draws the importance of practitioners into the foreground.