古代文物表面常见天然有机物的显微共聚焦拉曼光谱研究

为了鉴别文物表面常见的天然有机物,采用显微共聚焦拉曼光谱技术采集了古代常用的蛋白类、多糖类、脂肪酸类、树脂类4类6种有代表性的天然有机物的拉曼光谱。通过对皮胶、桃胶、蜂蜡、棕榈蜡、达玛树脂和琥珀标准样品的拉曼光谱分析,发现蛋白类的特征振动峰位于1657cm-1、1305~1252cm-1、1033cm-1及1003cm-1附近;多糖类的特征振动峰位于1463cm-1、1328cm-1、1258cm-1、1088cm-1、977cm-1等;蜡类的特征振动峰位于1470~1350cm-1区间,1659cm-1、1303cm-1、1636 cm-1及1610cm-1;树脂类的特征振动峰位于1660~1650cm-1区间和1460~1440cm-1区间。在对6种天然有机物光谱特征分析的基础上,得出了使用拉曼光谱法可实现古代文物表面常见天然有机物种类鉴别的结论。     

White But Not Quite: Normalizing Colonial Conquests Through Spatial Mimicry

The role of mimicry in the construction and deconstruction of social identities has enriched our understanding of power relations considerably. However, as a spatial practice, mimicry has received scant consideration. In what ways can space itself become an object of mimicry? What strategies and practices are involved in this process and with what political objectives? The current paper treats these questions by analyzing processes of mimetic spatial production aiming to transform the Israeli‐occupied territory of Mount Hermon into an “ordinary” western ski resort. Yet this concerted effort produces a variety of tensions and contradictions that ultimately undo the normalization of the colonial space, comprising a test case of the convoluted ways in which mimicry of space, not merely in space, generates various forms of slippage, excess and ambivalence.     

Paper 5: Historic Mortars from the Coudenberg Archaeological Site: Characterization and Source of Raw Materials

Abstract

The characterization of historic mortars by means of a concise methodology of material analyses can provide crucial information with regard to the origin of the raw materials and the ancient mortar technology. For the analysis of the historic mortars of the Coudenberg archaeological site, the methodology consists of optical and scanning electron microscopy, simultaneous thermal analysis, and an acidic treatment. These analyses were carried out on a total of seventeen samples lifted from various areas in the site, in function of the building chronology resulting from a historic built investigation. The type of binder and aggregate as well as their volumetric ratio were determined.

Both binder and aggregate present distinctive features, which made it possible to identify the probable geological provenance of the raw materials. The observations are verified with available historical records regarding the construction of the main banqueting hall — the Aula Magna — and the use of raw materials such as limestone and sand for the production of lime and construction purposes.     

Toolstone constraints on knapping skill: Levallois reduction with two different raw materials

Lithic raw material constraints are widely assumed to be a determining factor of flaked stone tool morphology, but this assumption remains largely untested. We conducted a controlled experiment to determine whether a knapper’s growing replication skills would be hindered if the toolstone used was switched from large flakes of an easily worked chert to nodules of less tractable one. Two batches of Preferential Levallois cores were knapped, an earlier series made from standardised large flakes of sediments dominated by chalcedonic quartz followed by a more challenging one using variably-shaped, cortical nodules of microcrystaline quartz that varies in the completeness of quartz replacement of calcite and dolomite. Skill level markers were designed to measure the knapper’s ability to achieve a series of set goals. These were quantified and subjected to statistical testing. In all but one test, significant increases in skill could be detected from the earlier to the later batch of reductions, despite the drop in toolstone quality. Significant improvements in the consistency of the knapper’s output could also be detected. However, the switch to a more challenging, nodular chert did require extra shaping, which resulted in more waste. This masked visible progress towards producing a less costly core. Overall, our results do not support the assumed primacy of toolstone constraints over other factors in influencing the morphology of flaked stone tools.     

基础日语说课

说课,是介于备课和上课之间的一种教学研究活动,现在已经成为了各大中小学校评价教师教学效果、教学质量的一种教学活动,是教师在备课的基础上,面对同行、专家,系统而概括地解说自己对某一门课程或者某一章节的理解,阐述自己的教学观点,表述自己执教的教学思想、方法、手段以及组织教学的形式等,然后由大家进行评说。说课,是一种新的教学研究活动,需要广大教师认真学〉-j,积极参与。     

“A Little Gravy in the Dish and Onions in a Tea Cup”: What Cookbooks Reveal About Material Culture

Six British colonial and Anglo-American cookbooks from the period 1770–1850 provide insights into the ways in which items of material culture often were used in the past. The multiple functions of many items suggest the need for critical reconsiderations of the functional typologies and status markers so heavily relied upon by historical archaeologists, as well as rethinking of gender associations for some items of material culture.     

Study on the source of raw material and firing technique of glazed tiles bodies in the Ming Imperial palace site,Nanjing, China

This article considered glazed tiles excavated from the Ming Imperial Palace site in Nanjing as the research object. Glazed tiles were selected and analyzed via vacuum porosimeter, thermal dilation (TD), X-ray diffraction (XRD), and energy dispersive X-ray fluorescence (EDXRF) to determine their physical property, firing temperature, phase composition, and chemical composition, respectively. Results show that the firing temperature of body belongs to the temperature range (of 950–1,100°C), whereas the water absorption and apparent porosity are large. The phase composition of glazed tile bodies is the same (predominantly quartz and mullite). However, some samples contain trace amounts of rutile, hematite, sodalite, and orthoclase. The firing temperature combined with the phase composition indicates that the raw material and firing process of glazed tile body samples have similarities, which embody of the strict and unified management system of the official kiln. The raw materials of glazed tile body in the Ming Imperial Palace site may come from Dangtu glazed kiln, whereas the rest of the samples remains to be explored. This study provides a scientific basis for understanding the evolution of glazed tile-making technology in ancient China, and is important for the protection and repair of glazed buildings in the Ming Dynasty.     

试析20世纪40年代中国马克思主义史学家对史料和历史考证方法的重视

20世纪30年代,经过中国社会史论战而迅速扩大影响的中国马克思主义史学,存在着明显的教条化和公式化、轻视史料与考证的缺失。40年代的中国马克思主义史学家对此进行了积极的反思和纠正,而且还从理论上论述了史料及考证方法在历史研究中的重要性,阐述了理论观点与材料方法间的辩证关系,极大地促进了马克思主义史学的中国化和学术研究的中国化。     

Visualising Traces of the Past in Latin America*

The articles included in this special issue address the shifting relationship between traces of the past and photography in Latin America from the nineteenth century to the present day. Looking at different forms of materiality and trace in Latin America, from pre-Columbian remains to body art and industrial ruins, this issue also understands photographs as material objects that ‘act’ within particular visual economies. In this introduction, we offer some brief reflections on ruins and ruination in Latin America, and on the relationship between photography and the past.     

A first note on the excavations at UAQ38, a new Neolithic site in the Emirate of Umm al-Quwain

At the end of 2018, the first season of excavation was carried out at the shell midden site of UAQ38. The site occupies the top of a sand dune not far from UAQ36 and UAQ2, two other recently investigated Neolithic shell middens. Several well-stratified anthropogenic levels were excavated at UAQ38, which can be dated mainly to the 5th millennium BC, although the recorded artefacts suggest a possible older date for the lowest levels. Food waste, post-holes, fireplaces, and burnt shell dumpings attest to human activities that took place at the site over a rather long period of time. Here the stratigraphic sequence will be presented, together with a first overview of the artefactual assemblage. The collected data will be concisely discussed in order to fit the site within the typology of Neolithic settlements that can be proposed for the area. UAQ38 is so far the only Neolithic site along the northeastern coast of the UAE for which stratified charcoal is available for dating.