Neutron activation analysis of stone from the Chadron Formation and a Clovis Site on the Great Plains

Cryptocrystalline silicates from the Chadron Formation were widely used by prehistoric human groups in the Great Plains of North America. There are two documented quarry areas: Flattop Butte in Colorado and the White River Badlands of South Dakota. Cryptocrystalline silicates from these sources are visually indistinguishable, making it difficult to determine the sources of artefacts found at archaeological sites. In this investigation, neutron activation analysis is used to distinguish the two sources. This technique also identifies lithic material from the Clovis-age Eckles site in Kansas as being from Flattop Butte.     

胶东青铜器科学分析

本文通过考古实物的科学分析,认为早在西周时期胶东青铜技术便发展到了一定水平,战国后便发展到了较为成熟的阶段,大约自西周始,胶东青铜技术与中原便是大体同步发展了的.文章最后还将胶东青铜合金成分与《考工记·六齐》作了比较,并提出了“六齐”既不是生产经验的总结,也不是指导生产实践的工艺规范,而是一种试验资料的反映和归纳的观点。     

Where the violence happened matters. Geopolitical framing and assessments of collective responsibility for historical violence.

Mass violence always takes place in a particular geopolitical context, and how that context is understood influences perceptions of collective responsibility. As international borders shift, often in the wake of war, events that occurred within one geopolitical entity can be understood has having taken place in another. The influence of such geopolitical framing on judgments of collective responsibility remains understudied. Two studies examine how geopolitical frames lead to shifting assessments of collective responsibility for historical mass violence. By depicting historical violence within a particular geopolitical entity (e.g., a country), that entity was perceived as being more responsible for the violence. The studies are set within the contexts of German-occupied Poland and the British occupation of the Indian subcontinent. The ramifications of these findings are discussed for the teaching of history, the commemoration of historical victimhood, and for our understanding of assessments of collective responsibility and geopolitical framing more broadly.     

Unsettling sovereignty: Violence,myths and the politics of history in the Ethiopian Somali metropolis

An increasingly consolidated anthropological scholarship has moved from a legal notion of sovereignty towards an analysis of its violent enactment. Yet, it has paid insufficient attention to the ways in which the idea of sovereignty forms and operates in localized political struggles. Taking seriously Bonilla’s (2017) call for the “unsettling” of sovereignty, this article scrutinizes how ideas of legitimate rule have formed around myths of violence in the capital of the Ethiopian Somali region. It uses ethnographic material to examine the politics of history around material constructions through which myths of violence are entangled with the city's landscape of memory. It reveals sovereignty in the process of formation, becoming culturally and materially grounded in the myths of violence of an emerging Somali nation within the ethnic federal Ethiopian state. This article argues that past claims to sovereignty continue to affect the politics of history, with profound consequences for ongoing nation-state building projects and the corresponding territorial imaginations. It thus highlights the inherently fragile nature of ideas of state sovereignty in the frontier metropolis. On this basis, it contributes to a geographically differentiated anthropology of sovereignty and to an understanding of its co-constitution through violence in the frontier and myths in the metropolis.     

When leadership traits meet historic success: Hassan Rouhani and the nuclear deal of 2015

This study aims to show how dispositional characters of political leaders are affected by situational developments during the time‐in‐office. Although newly emerging literature of leadership traits demonstrate that significant events alter leaders’ traits, they mainly focus on the measurement of shocking events on dispositional features, leaving the effect of achievements underexplored. The Iranian nuclear deal of 2015 is one of the most significant successes in the last decade of world politics. Gambling his political career on nuclear talks by promising the Iranian people to solve Iran's decades‐long isolation, President Hassan Rouhani played a momentous role in negotiating the deal. The Joint Comprehensive Plan of Action (JCPOA) was globally recognized as a success of Rouhani's leadership. Using the Leadership Trait Analysis (LTA), this article will show the role of Rouhani's personality in the realization of the historic nuclear deal and measure the effect of such a success on Rouhani's leadership traits.     

Galilei als Methodologe

Galileo did not develop a systematic methodology but rather a methodical form which represents an essential part of the development of modern scientific thought. Keywords to the methodical form of Galileo's thought are: 1) The geometrization of the sciences (‘mathematization of nature’) - this refers especially to the explication of the methodological priority of a theory of measurement. 2) Argomento ex suppositione, that is, the coupling of the originally proof-theoretical distinction between analysis and synthesis to elements of a methodology of empirical science. 3) The axiomatic structure of mechanics that corresponds to the modern semantic theory conception and to constructivist conceptions of the philosophy of science. 4) A constructive (or instrumental) concept of experience, which replaces the Aristotelian concept of a phenomenal experience in the construction of physics.     

X-ray fluorescence analysis of late Roman and Sassanian silver plate

About 200 analyses have been made on late Roman and Sassanian silver objects using energy-dispersive X-ray fluorescence. This has shown that the main feature of the composition of the silver throughout the period and across the geographical area studied was towards high fineness (average silver percentage about 95%). Compositional differences are found between Roman and Sassanian silversmiths' products for the elements copper and lead. Much of the material analysed came from hoards, and using a statistical technique on the analytical data (Discriminant Analysis) broad compositional differences between hoards were found to emerge. The use of different compositions of silver for different joined parts of a single object are discussed.     

The Evolution of the Vitruvian Recipes over 500 Years of Floor‐Making Techniques: The Case Studies of the Domus delle Bestie Ferite and the Domus di Tito Macro (Aquileia,Italy)

The paper reports the results of a research project aimed at the characterization of the floor bedding mortars of two Roman houses in Aquileia (north‐eastern Italy), the Domus delle Bestie Ferite and the Domus di Tito Macro. Seventy floor bedding mortars of the two domus were selected and almost half were fully minero‐petrographically characterized by means of optical microscopy operated in transmitted light (OM‐TL), X‐ray powder diffraction analyses coupled with quantitative phase analysis by means of the Rietveld method (XRPD‐QPA) and scanning electron microscopy with EDS microanalysis (SEM–EDS). The results indicate an evolution of the mortar preparation techniques over time in the mosaic of both houses. The materials are compared to the traditional Roman recipes for specific construction techniques.     

Migrants,inequalities and social research in the 1920s: The story of Two Portuguese Communities in New England

In this article, I analyse the production and reception of a 1923 social monograph on migrant communities in New England and in doing so: (1) outline an archaeology of the social sciences in the U.S., by analysing aspects of their development, dynamics, institutional politics and research agendas; (2) discuss the tensions between social, racial and cultural interpretations of inequalities in the political economy of the 1920s; (3) analyse the pervasiveness of racialist thinking in science, society and politics, its impact in the hierarchization of groups for purposes of border control, and how the targeted groups responded to it.