Could woodworking have influenced variation in the form of Acheulean handaxes?

The relationship between tool form and function is fundamental to hominin behaviour and evolution. Acheulean handaxes are known for their general consistency across more than a million years and three continents, albeit with some variation in size and shape. However, the influence of this variation on cutting has only rarely been studied, mostly in either butchery or generalized cutting tasks. Yet evidence indicates that handaxes were used for woodworking by at least 1.5 mya. Here, we experimentally tested whether woodworking could have exerted selective pressures on handaxe form. Additionally, these data were compared with a previous experiment that tested flakes during woodworking. For handaxes, no significant relationships were detected in woodworking efficiency. Accordingly, woodworking likely did not exert strong selective pressures on handaxe variability. However, the effectiveness shown by handaxes further demonstrates the functional flexibility of this technology, which is likely a factor contributing to their use over broad temporal, geographical and ecological spans. When comparing handaxes with flakes, only the smallest flakes were found to be significantly less efficient than handaxes. Therefore, the functional demands of woodworking were likely influencing hominin technological decisions about flake morphology, or the selection of flakes for woodworking, more than they were handaxe morphology.     

History perceptions and national identity among Latvian youth: Entrapped between narratives of Latvia and Russia?

This article examines the extent to which history forms national identity among Latvian youth. Being a multiethnic country, Latvia provides a unique opportunity to study the role of history in nation-building among dominant and minority ethnic groups. The majority of Latvia's ethnic minorities are Russian-speaking; therefore, a peculiarity of the Latvian case is the influence of the historical narratives promoted by Russia. The research problem of the paper is the formation of national identity when a foreign country promotes distorted historical narratives to discredit a state. The empirical findings are based on 30 in-depth interviews with young people. The main conclusion is that history plays a rather limited direct role in forming national identity among youth in Latvia. The influence of Russia's historical narratives is observable but not as strong as expected in the context of Russia's influence activities.     

Transformation of Istanbul from a monocentric to a polycentric city

This paper investigates the spatial transformation of Istanbul from a monocentric to a polycentric city following the growth of the city and the development of its communications systems. The population and employment of peripheral districts have been growing rapidly, while those of the core districts have decreased. In addition, other variables are utilized for the identification of polycentres such as tax revenues from commercial enterprises, weighted average trip length and volume of mail. The results of the study reveal that the old CBD of Istanbul is no longer a dominant employment centre. Instead, a new CBD is emerging at the intersection of the radial and the peripheral highways, and subcentres are developing in some of the first and second ring districts. A major contributing factor to Istanbul's polycentric development has been the transformation of its economy into one that requires large modem office space and facilities for private automobiles—both of which are difficult to provide within the old CBD. In addition, the construction of peripheral highways has contributed to a pattern of polycentric development. Moreover, there is a desperate need for planned development of these subcentres in order to prevent their current haphazard development and to give a character to the peripheral areas of Istanbul.     

Intrametropolitan Location of Producer-service FDI in Istanbul

For the purpose of increasing the capacity of foreign trade and attracting more foreign capital, Turkey began to modify its relevant economic laws and institutions in the 1980s. This restructural process proved its success, increasing the number of firms with foreign capital operating in Turkey 29 times between 1980 and 1997. However, considering other developing countries on a global scale, this increase rate was less than expected. When the conjuncture of global political systems undergoing dramatic changes since the previous century is regarded carefully, entering the twenty-first century as a country still in the process of developing, it is most probable that Turkey will become a country of significant power in this century with its historical, geographical, ethnic, and economic potentials in the Balkans, Middle Eastern and Caucasian regions. Due to the emergence of new opportunities in the Middle East, the Turkic Republics, Ukraine and the Federation of Russia since the beginning of the 1990s, in order to preserve its external appeal, Turkey has been obliged to adapt to the changes in the goals of this area. With the advantage of being a coastal city positioned at the crossroads of trade routes throughout history, Istanbul has been the centre of commercial control and coordination. Today the advantage of its geographical position makes Istanbul an important centre preferred by global capital for reaching local markets and resources. In other words, Istanbul is a candidate to be the centre of the functions of control and accessibility within these interregional networks. In this respect, the pattern of foreign direct investment (FDI) in producer services has been investigated. This paper represents a portion of the research conducted in Istanbul by Istanbul Technical University.     

Rain Making Ceremonies in Iran

Pre-Islamic beliefs and practices abound in Iran, albeit with an Islamic veneer, have been entirely islamicized. One kind of such surviving practices is that of rain making ceremonies. In this article, seven major rain-making ceremonies are categorized, described, and interpreted, including some regional variants thereof. Attention is paid to the fact that these ceremonies are not limited to Iran, but are also found in neighboring countries (Iraq, Turkey, India, Central Asia), thus showing that these are all survivors of common ancient religious archetypes.     

The Port‐Vendres 4 Shipwreck Cargo: evidence of the Roman wine trade in the western Mediterranean

The Port‐Vendres 4 shipwreck is evidence of coastal export trade between Hispania Citerior and Narbonne in 40/30 BC. The cargo is made up of a particular assemblage of Roman wine amphoras (Pascual 1, Dressel 1B and Lamboglia 2) destined for Gallic markets. Archaeological and archaeometric analyses conducted on a selection of the amphoras allowed the provenance of the cargo to be identified as Hispania Citerior and the central‐southern Tyrrhenian coast of Italy. Iluro and/or Baetulo are proposed as the ports of departure, enabling the reconstruction of the trade route and the historical and economic significance of this shipwreck.     

Optimal Control of Structures under Earthquakes Including Soil-Structure Interaction

It is well known that the soil-structure interaction (SSI) changes the dynamic response of a structure supported on flexible soil. The analysis of optimally controlled SSI systems has certain difficulties due to the nature of the SSI and the optimal control problem. In this paper, a two-step iteration-based numerical algorithm is proposed to handle optimally controlled SSI systems under earthquakes. First, the optimal control forces are obtained by using a fixed-base system. Then, the optimal control forces are converted to the frequency domain by the Fourier transform technique to be used in the equations of the SSI system. The lateral displacement and the rocking of the foundation are obtained from the equations of the SSI system containing the optimal control forces in the frequency domain. The lateral displacement and rocking of the foundation are then converted to the time domain by the inverse Fourier transform technique, and the lateral accelerations and the rocking accelerations of the foundation are obtained by the forward finite difference method. During the second step, the optimal control forces are calculated again by using the lateral acceleration and the rocking acceleration of the foundation along with the earthquake ground motion. Using the method explained above, the optimal control forces obtained in the time domain are used in the equations of the soil-structure system from which the behavior of foundation and structure is obtained. In the final section of the paper, a numerical study is conducted for a controlled structure supported on flexible soil.     

Colouring Agents in the Pottery Glazes of Western Anatolia: New Evidence for the Use of Naples Yellow Pigment Variations During The Late Byzantine Period

A group of the late 12th–13th century Byzantine pottery glazes, mostly related to Zeuxippus Ware Type pottery from the Ku?adas? Kad?kalesi/Anaia site in western Anatolia, was characterized non‐destructively using Raman spectrometry. SEM–EDX was also used complementarily for the glaze characterization. The nature and composition of the glazes, firing conditions, aspects of colour formation and pigments used were discussed. The glazes were found to be lead‐rich silicates, fired close to 700°C on the basis of the Si–O stretching peak maxima of the Raman spectra recorded at ～920–980 cm^–1, as also confirmed by SEM–EDX analysis. The polymerization index values calculated are between approximately 0.05 and 0.1. The use of biscuit‐fired bodies prior to glaze application was suggested based on the results of SEM–EDX analysis. In particular, the detection of Naples yellow pigment variations on a locally produced pottery sample is quite significant, since the use of this type of pigment has hardly ever been reported between the Roman period and the Renaissance.