The origins of sedentism and farming communities in the Levant

Particular geographic features of the Mediterranean Levant underlie the subsistence patterns and social structures reconstructed from the archaeological remains of Epi-Paleolithic groups. The Kebaran, Geometric Kebaran, and Mushabian complexes are defined by technotypological features that reflect the distributions of social units. Radiocarbon dating and paleoclimatic data permit us to trace particular groups who, facing environmental fluctuations, made crucial changes in subsistence strategies, which, in the southern Levant, led to sedentism in base camps on the ecotone of the Mediterranean woodland-parkland and the Irano-Turanian steppe. The establishment of Early Natufian sedentary communities led to a regional change in settlement pattern. The relatively cold and dry climate of the eleventh millennium B.P. forced Negev groups into a special arid adpatation. The early Holocene onset of wetter and warmer conditions favored the earliest Neolithic (PPNA) development of village life based on the cultivation of barley and legumes, gathering of wild seeds and fruits and continued hunting.     

COMPUTATIONAL COMPARISONS OF SPATIAL PRICE EQUILIBRIUM METHODS*

ABSTRACT. In this paper we propose new algorithms for the solution of both general and standard spatial price equilibrium problems, and test their performance with existing algorithms on randomly generated problems. For the standard problem, we propose decomposition schemes based on the concept of “equilibration operator” and compare their performance with the Frank-Wolfe method. For the general problem, we present alternative variational inequality formulations defined over Cartesian products of sets and then exploit these formulations to construct Gauss-Seidel-type serial decomposition methods. We then compare their performance with the projection method. Our computational tests suggest that the new schemes are substantially more efficient than earlier ones.     

Democratisation and Ethnic Conflict: The Kin Connection

Abstract. This article posits that individuation is a determining factor in making democratisation efforts workable or, where it is absent, ethnic conflict likely. Somalia serves as a case study. Since the Somali state has not been able to secure individuals' social welfare or their futures, citizens use genealogies, which chart trustworthiness, to construct social welfare safety-nets. There is also a moral dimension to genealogy. This is quite different from what occurs in the democratic West, where the state has guaranteed individuals a significant measure of social welfare security over time, and where identity can be considered situational. I argue that under conditions of uncertainty, such as have existed in Somalia, identity is not at all situational, but is fixed and fixes individuals in ethnic groups. The push to democratise can then lead to armed ethnic conflict.     

General housing characteristics of Poland

Poland has a relatively higher proportion of households as compared to number of housing units available. The distortions in housing stock have increased in Poland since the 1960s and 1970s as deficits remained very high and the demand increased in Poland while other socialist nations of eastern Europe reduced their housing deficits. Housing is important irrespective of the economic system of the country, whether socialist or non‐socialist In a socialist economy, housing is heavily subsidized to meet the minimal requirements of all the people. Though the expressed policy of the socialist country is to minimize the differences between the rural and urban areas there are still basic socio‐economic differences in existence between the rural and urban housing stock. This study found that there were distinct differences between the different macro‐regions: the buildings varied in their age, condition, uses and composition. In Warsaw or Central Poland, roofs are constructed of tar boards and the buildings are used for subsidiary uses. In the eastern and southern regions of Poland, it was found that the majority of buildings are used as single‐family buildings. Many of the dwellings in the south are single family, with roofs constructed of tin plate and sheet metal. The walls of the buildings in this area were constructed of logs and boards. Endemic to the north‐western portion of Poland are roofs constructed of tile. Many of the characteristics found within the regions of Poland stem from the cultural influences.     

Shaking table tests on a stone masonry building: modeling and identification of dynamic properties including soil-foundation-structure interaction

This article presents the identification of dynamic properties of a stone masonry building, followed by numerical simulation of its dynamic response accounting for soil-foundation-structure interaction. The first part regards numerical simulations of the earthquake response of a two-story building prototype with timber floors, made of three-leaf stone masonry without laces. This 1:2 scale prototype was tested on a shaking table in its as-built state and after strengthening, at the National Technical University of Athens. Afterward, the building prototype was modeled with flat shell elements and equivalent frames (common frames and macro-elements), for an investigation of its linear and nonlinear seismic response, assuming base fixity. Numerical results were compared to the experimental ones, which yielded conclusions on the considerations of each employed modeling strategy, as well as its efficiency and applicability. The second part considers the effect of soil-structure interaction using appropriately modified foundation stiffness values to account for the foundation soil flexibility. Comparison of the numerical results with and without SSI effects showed how the flexibility of the soil-foundation system and the soil-structure interaction modified the system’s modal characteristics and response within the elastic range, in terms of both seismic loads and deformations, and produced conclusions about its consequences on the overall structural stability.     

Gender Binary and the Limits of Poststructuralist Method

In contemporary gender history, the story about the making of the gender category is inseparable from the concept of ‘gender binary’. It at once signifies a research agenda and constitutes a persistent problem pervading feminist analysis itself. On the one hand, it points to the massive historical record of persistent inequality between the sexes. On the other hand, the concept of ‘gender binary’ undergirds gender history's analytics, which empowers historians to pursue, expose and deconstruct the binary organisation of gendered – woman/man – identities as well as social relations and discursive formations that produce them. In both capacities, the concept carries a rich repertoire of connotations, which informs and influences the gender category: those of radical distinction, opposition, mutually exclusive and exhaustive differentiation, hierarchy, domination, oppression – in all their myriad historical forms. As a result, it captures the entanglement of gender – in theory, an open‐ended category – in binary, that is, negatively and positively determined connotations of feminine and masculine and, consequently, in a particular, historical form of heterosexual subjectivity, the one structured like a binary system. The entanglement of gender history's foundational category – gender – in the binary systems of assigning difference has had many critics. What has been left unexamined however and what gives this article its focus is the poverty of gender as a binary device to analyse those gendered identities that constitute heterosexual relations but do not fit the binary matrix. The goal in this article is to enable the conditions for the continuous development – not abandonment – of the gender category and our theoretical framework. To do that, I explore how the gender category became a binary category, tightly identified with connotations of asymmetry and hierarchy, by undertaking a deconstructive rereading of a foundational work by one of the discipline's most influential poststructuralist theorists – Joan Scott. I conclude by arguing that in order to address the problem of gendered, heterosexual identities that do not fit the binary matrix we need to revisit the concept of dichotomy and differentiate it from binary connotations of difference found in heteronormative gender systems.