Studying the process of enamel powder preparation for émail champlevé by colour measurements and μ‐X‐ray mappings

Colour measurements and non‐destructive μ‐X‐ray mappings have been used for the first time in a comprehensive study of medieval émail champlevé works from different production areas in France and Germany. This approach has given a new insight into the enamel powder preparation process of the glass material used for enamelling. Colour measurements demonstrated that all production centres used glass of very similar hues, but with large differences in colour saturation. The μ‐X‐ray mapping results of blue enamels are described by a semi‐qualitative approach. Significant variations in oxide contents of lead, cobalt, manganese and antimony oxides were found. The variations suggest that more than one glass material was used to prepare the powder for enamelling. The variations in antimony and cobalt show that glass had different degrees of opacity and colour depth. The manganese and lead contents, which do not correlate with the cobalt or antimony contents, indicate that probably glass of different base compositions was used to prepare the enamel powder for one champlevé field.     

NEW ANALYSIS OF CYLINDRICAL AND OVOID JARS (‘ARCHIVE JARS') FROM SOUTHERN JUDEA

This paper presents new compositional analysis of 26 fragments of the much‐debated cylindrical and ovoid jars, a vessel type first defined at Khirbet Qumran and associated with the Dead Sea Scrolls. The new samples include 15 examples from Tel ?evron, a site which yielded a pottery workshop and that carries certain similarities with Khirbet Qumran during the Early Roman period, as well as several examples from Jericho and Masada. According to the new as well as previous analyses, many of these jars were produced in the ?evron area; another source may be located in the northern Dead Sea area. The actual function of these jars, and whether they ever contained scrolls, is still unclear.     

La rivière Romaine en chantier : Transformations contemporaines des territorialités des Innus d'Ekuanitshit

Since 2009, Innu members of the community of Ekuanitshit have faced a major hydroelectric project on the Romaine River, an integral part of the Nitassinan, their ancestral territory. In this paper, we study the project's impacts on the material and ideational relationship the Innu have with the river. We explore the idea that the project transforms the traditional relationship to territory into a more pragmatic one, marked by economic and political interests. Our analysis reveals that the Innu's territorialities, though partly transformed by increased contact—and sometimes conflict—with hegemonic non‐indigenous society, remain anchored in a strong cultural heritage and a deep identification with territory. We argue that these seemingly differentiated conceptualizations, of traditions on the one hand and development on the other, are not incompatible. These conceptualizations comprise dynamic cultural, social, and political territorialities which are thus internal and external, ancestral and contemporary.     

‘M GLOW BLUE’: ARCHAEOMETRIC RESEARCH AT MICHIGAN'S FORD NUCLEAR REACTOR

The Ford Nuclear Reactor operated from 1957 to 2003 on the University of Michigan's North Campus in Ann Arbor, Michigan. Over its 45‐year lifespan, the facility played a key role in archaeometric research, fostering early methodological studies using INAA and supporting archaeological materials science investigations of lithics, ceramics, metals and bone. One small part of the FNR's abundant legacy was the initiation of trace‐element studies of Oaxacan ceramics, which are now beginning to shed light on early exchange interactions and the origin of the Monte Albán state in the Valley of Oaxaca, Mexico, between 500 bce and 200 ce .     

Wissenschaftsstädte – Zur Bedeutung des Topos der ‘kreativen Stadt’ für die Wissensproduktion

Science Cities: What the Concept of the Creative City Means for Knowledge Production. – The article aims to show that the relationship of science and the city has changed since the 1970s in the context of the knowledgeable society. While cities have principally been regarded as the typical space of science, of new ideas and innovation for centuries, since the 1960s and 1970s universities, research institutes as well as industrial research institutes have relocated to the periphery of cities. There, however, these sites of knowledge have been organized in an ‘urban mode’. That means that the concept of the city as a place of science and innovation has determined the architectural, spatial, and social organization of these sites on the periphery of cities. Certain features of the city have been copied, such as social infrastructures, places of communication, restaurants, cafes etc., while others have been left out – housing, cinema, theatre etc. An ‘urban mode of knowledge production’ in the sense of a very stylized model of the city has become a tool to enhance the production of scientific and technological knowledge. – The article exemplifies this by focusing on a case study, namely of the so‐called ‘Science City’ of the Siemens Company in Munich‐Neuperlach.     

Can the Raman spectrum of anatase in artwork and archaeology be used for dating purposes? Identification by Raman microscopy of anatase in decorative coatings on Neolithic (Yangshao) pottery from Henan,China

Scanning electron microscopy/energy dispersive X-ray analysis has earlier shown that the white background layer (slip) on painted pottery sherds (Yangshao culture, Henan, China, 4200 BC) is composed of kaolinitic clay containing titanium in the assumed form of TiO₂ at just 1 wt%. The same samples of white slip have now been studied by Raman microscopy, revealing bands characteristic of anatase, but none from the majority species, the matrix of kaolinitic clay. These results highlight the extraordinarily intense Raman scattering from even trace amounts of anatase and thus the need to recognise that, although the colours of archaeological artefacts are almost always determined by the nature of the matrix, the Raman spectrum may be determined by a highly scattering trace component such as anatase. The significance of anatase as a potential date-marker pigment on works of art and archaeological artefacts is discussed.     

A contribution to the study of post-depositional alterations of pottery using TL dating analysis

In luminescence dating, the potassium concentration significantly contributes to the dose rate value in the age estimation. Within this study, fine-grain thermoluminescence dating has been applied on sherds of calcareous pottery of known age, excavated at a Roman site in Mallorca, Spain. For those of the samples that showed signs of severe potassium leaching, according to chemical and mineralogical examination, the thermoluminescence analysis provided overestimated dates. By using the known archaeological age of the samples, a corrected dose rate value can be estimated which provides the potassium concentration averaged for the burial period. Finally, a step-like model can then be used to estimate the fraction of the burial period after which most of the alteration effects took place.     

肯尼迪政府调节国际收支逆差的政策

肯尼迪在美国面临巨额国际收支逆差的背景下入主白宫。严重的逆差导致美国的黄金大量外流,引起西方世界对美元信用的置疑。因此,调节逆差成为肯尼迪政府的重要使命。肯尼迪政府调节逆差的政策主要体现在肯尼迪提交给国会的两份特别咨文中,即1961年2月6日的“黄金和国际收支逆差特别咨文”和1963年7月18日的“国际收支特别咨文”。以两份咨文为蓝本,有关部门展开了系列的开源节流行动。美国的逆差调节行动使美国政府内部和北约盟国间的斗争起伏跌宕,充分暴露出权力政治的实质。     

"承负说"与两汉灾异论

作为《太平经》基础理论的"承负"说主要有两层含义:一是善恶报应,继承汉代之前中国本土的善恶报应思想;二是对汉代社会危机提出的一套解释系统,此与灾异论的盛行具有重要关联。前者为《太平经》对下层民众进行宗教教化准备了前提,后者为其政治改良方案的提出铺平了道路。尤其后者,对两汉之际不同派别的道教运动产生了革命性的影响,进而深刻影响了后汉之政治变迁。     

河南安阳县固岸墓地2号墓发掘简报

为配合南水北调工程建设,河南省文物考古研究所对安阳固岸墓地进行了考古发掘,清理出大批战国至隋代的墓葬,其中M2是一座保存较为完整的北齐时期的墓葬,出土器物60余件,尤其是出土的陶俑和镇墓兽十分精美,为研究北齐时期葬俗、葬制提供了珍贵的实物资料。