X射线荧光光谱技术与拉曼光谱技术在齐家文化玉器研究中的应用

为分析判断齐家文化玉器的材质,利用X射线荧光光谱技术对宁夏博物馆藏5件齐家文化玉器进行无损检测分析。结果表明,5件玉器所含元素及相对含量与和田玉相似。再借助齐家文化历史史料的有关信息,可推断为和田玉成分;利用拉曼光谱技术测得5件样品的拉曼光谱图,通过与和田玉样品拉曼光谱图比对,最强及次强特征峰位整体与之相似。可以明显看到透闪石矿物的特征峰,两种检测分析结果相互验证。研究结果为探索齐家文化玉器的玉质和玉料来源提供了重要的科学依据和准确的数据支撑。     

Effect of heating on the stable carbon and nitrogen isotope ratios of bone collagen

The effects of heat on the stable carbon and nitrogen isotopic ratios of collagen in bone were studied. Boiling or roasting did not change the δ¹³C and δ¹³N values by more than 1‰. More extreme heating, such as might occur if bones were burned or a body cremated, shifted δ¹³C and δ¹⁵N values by as much as 5 and 4‰ respectively. These large shifts were accompanied by changes in the atomic carbon-to-nitrogen ratios of the collagen. These results indicate that collagen samples extracted from prehistoric bones which display anomalous atomic carbon-to-nitrogen ratios may have been subjected to heating extreme enough to have altered their ${}^{13}\text{C}{}^{12}\text{C}$ and/or ${}^{15}\text{N}{}^{14}\text{N}$ ratios and therefore should not be used for dietary reconstruction.     

Characterization of dyestuffs in ancient textiles from Xinjiang

Extraordinarily well-preserved organic remains from mortuary and settlement sites, including mummified bodies, are scattered along the outer, oasis-laden rim of the Tarim Basin in Xinjiang Province, China, ranging in date from about 1400 BC to the late first millennium BC. Specimens of textile finds from Chärchän, dated at about 1000 BC were selected for dye analysis using newly developed protocols employing high performance liquid chromatography with spectrophotometric and mass spectrometric detection. A single blue (from an indigo plant), a red (from madder, a Rubia species) and two yellow dyes were detected, although the exact plant source for none of them could be identified with certainty. This research offers new insights in the interpretation of textile finds from prehistoric Xinjiang, and more generally, of early Bronze Age Eurasia.     

ON THE MANY WAYS OF SAYING MEMORY

This essay examines the concept and the discourse of collective memory in view of interpreting the novel function with which it has been endowed in recent decades and the problematic character of its interpretation. To this end, it focuses on the recent book by Manuel Cruz, On the Difficulty of Living Together: Memory, Politics, and History, which examines the contemporary functions that collective memory has assumed in recent decades and takes into account interpretations of it elaborated in a number of seminal works that have set the framework for contemporary ways of understanding it. My investigation engages critical analysis of the psychological approach to collective memory that Cruz adopts, which, in interpreting recent public preoccupation with collective memory as an expression of trauma occasioned by the Holocaust and other horrific twentieth‐century events, assumes that analogous psychic mechanisms govern forms of remembrance in the public sphere and memory in personal and small‐group interaction. By taking into account alternate possibilities of interpretation, suggested above all by the public function of the mass media, I seek to widen the scope of enquiry to scrutinize in a broader perspective the contemporary role of collective memory and its political significance in the public realm.     

热脱附-气质联用法无损测定函套中挥发性物质的探索研究

热脱附-气质联用法作为一种无损分析技术,可以用于测定函套中的挥发性物质。为此,用Tenax-TA吸附管对10种目标化合物进行吸附,在优化的色谱条件下,苯、甲苯、乙酸正丁酯、乙苯、间/对二甲苯、苯乙烯、邻二甲苯、正十一烷和糠醛等组分相关性良好。对实际样品进行测定,可以实现函套等装具中挥发性有害物质的分离分析。研究结果对纸质文献的保护有参考作用。     

Holocaust Archaeology: Archaeological Approaches to Landscapes of Nazi Genocide and Persecution

Abstract

Debate concerning the events of the Holocaust is well embedded in the historical discourse and, thus, clearly defined narratives of this period exist. However, in most European countries the Holocaust has only recently begun to be considered in terms of its surviving archaeological remains and landscapes, and the majority of known sites are still ill-defined and only partially understood from both spatial structural points of view. Additionally, thousands of sites across Europe remain unmarked, whilst the locations of others have been forgotten altogether. Such a situation has arisen as a result of a number of political, social, ethical, and religious factors which, coupled with the scale of the crimes, has often inhibited systematic search. This paper details the subsequent development and application of a non-invasive archaeological methodology aimed at rectifying this situation and presents a case for the establishment of Holocaust archaeology as a sub-discipline of conflict studies. In particular, the importance of moving away from the notion that the presence of historical sources precludes the need for the collection of physical evidence is stressed, and the humanitarian, scientific, academic, and commemorative value of exploring this period is considered.     

加强有效信息传播努力实现"三贴近"

为了进一步提高新闻宣传的社会效益,实现有效信息的传播,我们党要求新闻媒体在坚持正确舆论导向的同时,要遵循“三贴近”的基本原则,以增强新闻宣传的实效性、吸引力和感染力。而加强有效信息的传播,即是有效落实”三贴近”的具体体现,它们二者之间是相互联系、相辅相成的辨证关系。     

Chemical evidence for wine production around 4000 BCE in the Late Chalcolithic Near Eastern highlands

Archaeological excavations in the Areni-1 cave complex in southeastern Armenia revealed installations and artifacts dating to around 4000 cal. BCE that are strongly indicative of wine production. Chemical evidence for this hypothesis is presented here using a new method to detect the anthocyanin malvidin that gives grapes and pomegranates their red color. Using solid phase extraction (SPE) and alkaline treatment of the samples, followed by combined liquid chromatography-tandem mass spectrometry (LC-MS/MS), this method was applied to authentic standards and four ancient potsherds from Armenia and Syria. A positive result was observed for two of the samples from the Areni-1 cave complex, adding evidence supporting the hypothesis that wine was produced in the Near Eastern highlands in the Late Chalcolithic Period.     

Provenance of Early Bronze Age metal artefacts in Western Switzerland using elemental and lead isotopic compositions and their possible relation with copper minerals of the nearby Valais

Ten Early Bronze Age (BzA1, 2200–2000 BC) copper artefacts from the central Valais region from Switzerland were studied for their elemental composition and lead isotope ratios. In order to answer the archaeological question of a local copper supply, a database for copper minerals across the Valais (Switzerland) has been established. This database contains 69 data on lead isotope ratios as well as additional information on the minerals and geochemical associations for copper minerals from 38 locations in the Valais. Comparisons of the artefacts were also made with data pertaining to minerals from various deposits from Europe and Anatolia taken from the literature. The provenance of the materials is very diverse. Some of the data are compatible with the data from the copper mineral deposits of the Valais region. Moreover, three copper lunulae were identified as possibly Tuscan, which suggests contacts between Italy and the Valais region. This pattern also establishes a multiplicity of provenances for the metal and cultural influences in the Alpine environment of the Rhone Valley of Switzerland at the beginning of the Early Bronze Age.