Experimental explorations into the aceramic dry distillation of <Emphasis Type="Italic">Betula pubescens</Emphasis> (downy birch) bark tar

A range of experiments were conducted in an attempt to create tar from the bark of Betula pubescens (downy birch) using an aceramic dry distillation process. Fire structures based on small pits and small kiln-like mounds were explored with a focus on fire intensities and differing burn times under field-based conditions. Heat penetration presented itself as an all-important factor, and the depth of the construction of the structures and features was considered to directly correlate to the impact of the heat. Single variable experiments confirmed that the necessary reducing atmosphere was achievable despite friable soil, but that heat would not penetrate a 50- to 80-mm-deep layer of grass turf. The evolution of structures from pits towards a raised type resulted in kiln-like structures which proved more successful. Though the experiments did not successfully produce tar as a finished product, they did lead to a better understanding of the dry distillation process of the established technology of birch bark tar extraction in aceramic societies.     

Aurignacian ethno-linguistic geography of Europe revealed by personal ornaments

Our knowledge of the migration routes of the first anatomically modern populations colonising the European territory at the beginning of the Upper Palaeolithic, of their degree of biological, linguistic, and cultural diversity, and of the nature of their contacts with local Neanderthals, is still vague. Ethnographic studies indicate that of the different components of the material culture that survive in the archaeological record, personal ornaments are among those that best reflect the ethno-linguistic diversity of human groups. The ethnic dimension of beadwork is conveyed through the use of distinct bead types as well as by particular combinations and arrangements on the body of bead types shared with one or more neighbouring groups. One would expect these variants to leave detectable traces in the archaeological record. To explore the potential of this approach, we recorded the occurrence of 157 bead types at 98 European Aurignacian sites. Seriation, correspondence, and GIS analyses of this database identify a definite cline sweeping counter-clockwise from the Northern Plains to the Eastern Alps via Western and Southern Europe through fourteen geographically cohesive sets of sites. The sets most distant from each other include Aurignacian sites from the Rhône valley, Italy, Greece and Austria on the one hand, and sites from Northern Europe, on the other. These two macro-sets do not share any bead types. Both are characterised by particular bead types and share personal ornaments with the intermediate macro-set, composed of sites from Western France, Spain, and Southern France. We argue that this pattern, which is not explained by chronological differences between sites or by differences in raw material availability, reflects the ethnolinguistic diversity of the earliest Upper Palaeolithic populations of Europe.     

GrenzWerte—55. Deutscher Geographentag in Trier

Unter dem Motto GrenzWerte wird der 55. Deutsche Geographentag vom 1. bis 8. Oktober 2005 in Trier stattfinden. Inmitten der Großregion SaarLorLux/Rheinland-Pfalz/Wallonien, die selbst von Grenzen unterschiedlichster Art durchzogen und umgeben ist, werden die Öffnung Europas nach Osten und weitere interessante Grenzaspekte Deutschlands thematisiert. Vielerorts wird diskutiert über Grenzen, die erreicht sind, beispielsweise im Verkehrswesen, beim Umweltschutz oder in Nachhaltigkeitsfragen. Das Motto GrenzWerte hat diesen Trend aufgegriffen und ließ neben der räumlichen auch eine inhaltliche Grenzdimension entstehen. Darüber, welche Anknüpfungspunkte sich daraus für die Angewandte Geographie ergeben, sprach der stellvertretende Vorsitzende des DVAG, DIPL.-GEOGR. KAI PARTALE , mit dem Vorsitzenden des Ortsausschusses für den Geographentag in Trier und Professor für Angewandte Geographie und Raumentwicklung an der Universität Trier, PROF. DR. HEINER MONHEIM.     

Raw or Pre-Fired: Kiln Construction at Sawankhalok,North Central Thailand,as a Guide to Ceramic History

Sawankhalok, located in north central Thailand, was an early stoneware ceramic production site where the first kilns were dug cave-like into the natural ground, a method used in China for thousands of years. After a century or so, kilns at Sawankhalok began to be constructed of brick. It is suggested that if the bricks were pre-fired then an external influence may have been responsible. To the contrary, if raw unfired clay was used in the construction of the kilns the evolution was more likely a consequence of conceptual continuity.With the aid of chemical and mineralogical analyses it is shown that the kiln bricks were unfired at the time of kiln construction thereby suggesting that traditional conservatism, apparent in many aspects of the industry, caused processes to remain unaltered in the absence of a persuasive reason for change. These conclusions reflect on the degree of indigenous technology and artistic development associated with Sawankhalok ceramics as opposed to external influence.     

A History of Normative Theory in Americanist Archaeology

Efforts in the 1960s to demonstrate the value of the new archaeology involved showing that the competing culture-history paradigm was inferior. One allegedly weak plank in that paradigm had to do with how culture historians viewed culture—as a set of ideas transmitted in the form of ideal norms or mental templates. Lewis Binford referred to this view as normative theory. In archaeology that view was manifest in the equation of artifact types with prehistoric norms—an equation that, according to Binford, the culture historians had made so that they could track the flow of ideas through time and thus write culture history. Culture historians regularly subscribed to cultural transmission as the theoretical backdrop for their artifact-based chronometers such as seriation and the direct historical approach, but with few exceptions they perceived only a weak relationship between norms and artifact types. It was not until 1960, in a paper by James Gifford, that what Binford labeled as normative theory appeared in anything approaching a complete form. Ironically, the first applications of normative theory were products of the new archaeologists, not the culture historians.     

Voyages,mobilités,lumières

For a very long time and still today, travel stories have fascinated a vast public. It is important to debate their role and the model for intellectual and sensitive construction they propose. An essential link for the European elite's acculturation, they cannot for as much be separated from a much wider circulation which concerns society as a whole. In relation to the social morals of our past, the concept of mobility allows us to appreciate the totality of social practices and to confront the notions of movement and localization. The main cultural categories of space, time, sociability, social constraints and freedoms, are thus creating a structure for our understanding of change.     

Recognition and Classification of Urban Shapes

This paper is concerned with a methodology that is able to recognize and classify geometric shapes, in particular urban shapes. The main objective of this study is to develop a shape index that will address Whyte's category of “spatial form” (1968), that is, the external appearance or outward form, in contrast with the “internal form,” which is the structural form. We first review methodologies of shape recognition and classification. Next, we propose a viable formulation for such an endeavor by drawing from the aforementioned methodologies, and we aim to overcome some of their limitations by formulating a new index. We will apply the resulting shape index to an illustrative case in order to recognize urban shapes.     

A socioeconomic impact assessment of three Italian national parks

The expansion of protected areas (PAs) is feared to negatively affect the local economy, as every PA, albeit to different degrees, entails restriction to the economic activities. The literature on the topic has started assessing what is the socioeconomic impact of PAs, mostly focusing on the Global South. The objective of this article is the analysis of the socioeconomic impact of three Italian national parks (NPs), established in the 2000s, using a counterfactual approach based on both the outcome regression diff-in-diff and the doubly robust diff-in-diff combined with different propensity score-based and Mahalanobis distance matching procedures. We find that the three Italian NPs have a robust and statistically significant impact on average income of residents in municipalities hosting them. Conversely, there is weak evidence that population and local establishments are positively affected, and touristic local establishments and employment are negatively affected by the three NPs. All together the results indicate that the three NPs have no negative effect on the socioeconomic dynamics of the territories impacted, although additional investigations are required to shed lights to the impact mechanisms.