Growth estimations in settlement planning using a land use cellular automata model (LUCAM)

This article describes the main features of a Land Use Cellular Automata Model (LUCAM) developed within the scope a Ph.D. thesis by using both physical and socio‐economic data and on the basis of the relationships between the smallest cellular function and other functions that vary according to the fractal structure of settlements. An assessment of the research findings is also included. The article has five sections: Following the introduction, the evolution of land use models, in particular Cellular Automata (CA) based land use models, is described. Then, the main features of LUCAM are presented, and the basics of the criteria used in determining the model parameters is described. The model developed, which can easily be used in computer environments, aims to minimize the calculation time in growth estimation processes, and thus become a widely used tool. In this article, the model was applied to the settlement of Bursa (Turkey), and the results obtained were assessed. The conclusion section offers general guidelines on the use of the model and discusses the advantages of employing the model in CA based studies that are likely to emerge in the future.     

Cross-Border Trade Liberalization: The Case of Lokmaci/Ledra Gate in Divided Nicosia,Cyprus

In the divided Walled City of Nicosia, there are two separate markets: one in the Greek Cypriot South and one in the Turkish Cypriot North. The division is the result of the unresolved Cyprus Problem. However, UN-sponsored negotiations are gradually liberalizing trade as well as movement of people across the border. On 3 April 2008, the Ledra Street/Lokmaci Gate was opened, allowing people, tourists and shoppers to cross to the other side. This event was further stimulated by action on the part of various aid agencies, principally the European Union, United States Agency for International Development and United Nations Development Program, who had invested heavily in revitalization projects to restore historic and heritage sites in the area. These two complementary effects (i.e. revitalization projects and opening the Gate) have generated significant trade creation in the business district near the Gate. It is the overall aim of this paper to quantify the “trade creation effect”. The paper reports the results of a special survey of primary shop owners in the neighbourhood of the Gate in the northern part of the capital. The study finds empirical evidence of substantial trade creation, especially for Turkish Cypriots. However, this optimistic finding is clouded by the on-going bitterness of the last divided European capital surrounded by barbwires and minefields of the UN buffer zone that prevent maximum economic prosperity of a potential political settlement.     

Fruit and seed biomineralization and its effect on preservation

Mineralised fruits and seeds are frequently found in archaeological sediments but their chemical nature has not been often examined. The nature and the origin of these archaeobotanical remains have to be investigated to understand their taphonomic history. Fruits or seeds can be mineralised not only by replacement mineralisation but also by biomineralisation during the plant life. The mineral components of three fossil fruits sampled on the Pleistocene site of Dmanisi were analysed and compared with their modern analogues. Analyses were carried out by means of an environmental scanning electron microscope, equipped with an energy dispersive X-ray device and by means of a Fourier transform infrared spectrometer. Biogenic carbonates and/or biogenic silica were identified in the fossil and modern fruits of some taxa. Comparison between fossil and modern specimens has shown that molecular reorganisation occurred in carbonate and in biogenic silica during fossilisation, through diagenetic processes. The resulting stable mineral structures confer an exceptional preservation to fruits in sediments. Taking into account these taphonomic specificities (transformation and differential preservation), the chronological and palaeoenvironmental aspects of the mineralised fruits are discussed.