Bureaucrats and managers,peasants and pastoralists,imperialists and traders: Research on the Uruk and Jemdet Nasr periods in Mesopotamia

In recent decades the Uruk and Jemdet Nasr periods of the fourth millennium B. C. in Mesopotamia have been the subject of considerable research by scholars of the ancient Near East. Interests in and interpretations of these periods have focused on their credentials as early states, urban societies, and the immediate antecedents of Sumerian civilization. In this overview, I first present a brief historical background on the study of these periods, followed by a critical review of recent approaches that have had significant impacts on current directions of research and understanding of the fourth millennium. Finally, I suggest some research avenues currently being tentatively explored that may be especially appropriate for developing further our understandings of these periods.     

十一届三中全会前夕对外开放的酝酿和起步

中共十一届三中全会确立了对外开放的基本国策,而1976-1978年对外开放的酝酿和起步是十一届三中全会确立对外开放政策的前提和基础。1977年3月的全国计划会议和1978 年7-9月的国务院务虚会,使全党在对外开放问题上达成了一致,为后来的对外开放的实践创造了坚实的理论基础。     

Patterns of exchange and the social production of pigs in highland new guinea: Their relevance to questions about the origins and evolution of agriculture

In recent years, cultural anthropologists have made notable progress in understanding the bewildering variety of material exchange transactions found among the aboriginal populations of highland New Guinea. One of the major findings of this work is that competitive exchange behavior may bring in its wake alterations in agronomic practices involving an intensification of production. That intensification is primarily a product of social behavior, rather than an adaptation to climate change or population pressure, is a significant conclusion that should influence the thinking of archaeologists as they investigate past episodes of agronomic change, including the origins of agriculture.     

Induced metal-ion exchange in excavated human bone

Excavated human bone was exposed to aqueous solutions containing high concentrations of a single added metal ion in order to examine the extent of introduction of contaminating materials during burial. Variables included pH, temperature, ion concentration, state of bone (whole or crushed), structure of buffer, and counterion. Calcium and sodium showed little increase, and even a decrease in some cases. Strontium, zinc, lead, and magnesium showed large increases probably through heteroionic replacement of calcium. Manganese, aluminum, and potassium showed increases, particularly under neutral conditions, probably through infiltration into voids and defects.     

Assessing Conflict and Exchange: The Defensive and Access Layout of La Alumbrera (c. AD 1000–1480, North-west Argentina)

Abstract

The Regional Development Period (c. ad 1000–1480) in north-west Argentina is characterized, among other important features, by the coexistence of two phenomena seemingly opposed: a constant situation of violent conflict between communities and the maintenance or even intensification of interregional goods exchange networks. Although recent studies recognize the simultaneity of these processes, only a few scholars asked how communities dealt with the necessity of protecting themselves as well as obtaining distant resources. In this paper we present the analysis of the defensive and access layout of La Alumbrera archeological site which has the peculiarity of condensing features that may illustrate an example of how conflict and exchange coexisted at a local scale.