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This essay examines how and why historiography—defined to mean the study of the history of historical writing—first emerged as a legitimate subject of historical inquiry in the United States during the period from 1890 to the 1930s by focusing on the practice of historiography by three of the most influential American historiographers whose work spans this period: J. Franklin Jameson, John Spencer Bassett, and Harry Elmer Barnes. Whereas the development of historiography as a field of study signified a recognition that historians and historical writing are themselves products of the historical process, American historiographers in this period at the same time used historiography to further a scientific ideal of objectivity that was premised on the belief in the ability of historians to separate themselves from that process. Modern scholars (notably, Peter Novick) have attributed to scientific historians like Jameson and Bassett a simplistic and naive positivism; but the ability of these historiographers to recognize the subjective character of historical writing and yet affirm a belief in objectivity reveals that their understanding of historical truth was more complex than modern scholars have acknowledged. In turn, by questioning the belief that the historical profession was originally founded on a naïve faith in the ideal of objective truth, I demonstrate that New Historians like Barnes were more similar to their predecessors, the scientific historians, than they (or later scholars) acknowledged. Thus, rather than portraying the shift from scientific history to the New History as a linear trajectory of development from objectivity to a more relativist viewpoint, I argue that New Historians like Barnes at once expressed a greater recognition than his scientific predecessors of how historical writing was the product of its context, while still insisting on his commitment to an ideal of objectivity that divorced the historian from that context.  相似文献   
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The article describes lithic industries of the Upper Paleolithic levels of Kulbulak, Uzbekistan, a key site in southwestern Central Asia based on materials from excavations at several sites in the western and northwestern Pamir– Tien Shan region (Kulbulak, Kyzyl-Alma-2, Dodekatym-2, and Shugnou). A new cultural and technological tradition is introduced, for which the authors suggest the name Kulbulakian. Its distinctive features are the bladelet technique and a microlithic set including backed pieces and triangular microliths. Stages in the evolution of the Kulbulakian tradition are reconstructed: origins, development, peak, and disappearance of the carinated technology. Industries belonging to this tradition have shaped the general appearance of the Upper Paleolithic in the area in question.  相似文献   
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Pre‐Romanesque murals at Kosto?any pod Tríbe?om, Slovakia, have been investigated by portable X‐ray fluorescence and by microanalytical methods to identify painting materials (pigments and binders), and to explain the degradation of colours. Today, missing green and blue shades have been reconstructed according to residual concentrations of Cu, which correspond to copper chlorides—products of salt corrosion of the copper carbonates azurite and/or malachite, accelerated by micro‐organisms. As confirmed by powder X‐ray microdiffraction, original minium (Pb3O4) has been transformed to brown–black plattnerite (PbO2). In increased humidity, even insoluble pigments are washing down from the walls and the intensity of colours further diminishes.  相似文献   
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Kulbulak (Uzbekistan) is among the most important Paleolithic sites in Central Asia. Based on excavations from the 1960s to the 1980s, a stratigraphic sequence yielding 46 archeological horizons of the Lower, Middle and Upper Paleolithic has been described. The lowermost 22 layers were at that time defined as Acheulean, both in cultural and chronological aspects. Based on these previous works, Kulbulak has thus often been cited as one of the rarest occurrences of Lower Paleolithic and Acheulean in the region. However, this attribution was debatable. New excavations at Kulbulak in 2007–2010 provided new material and the first reliable dates that permitted us to tackle this issue. Moreover, a reappraisal of the lithic collections and documents from previous excavations was also conducted. These new data clearly indicate the absence of Acheulean or even Lower Paleolithic at Kulbulak. On the contrary, the lithic assemblages from this site only correspond to Middle and Upper Paleolithic periods. The lowermost layers are particularly interesting due to the presence of an early industry with blade and bladelet technology.  相似文献   
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This paper shows how visual analytics methodology can be used to facilitate interpretation of multi‐temporal thermographic imagery for the purpose of restoration of cultural heritage. We explore thermographic data in a visual environment from the unifying spatio‐temporal perspective in an attempt to identify spatial and spatio‐temporal patterns that could provide information about the structure and the level of decay of the material, and the presence of other physical phenomena in the wall. The approach is tested on a thermographic dataset captured on the façade of a Romanesque building from the 13th century—the Cathedral in Matera (Italy).  相似文献   
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While the most famous historical green earth deposits in Italy and Cyprus were exceptionally rich in celadonite, the deposits near Kadaň, Czech Republic, consisted of thin Fe‐rich celadonite impregnations accompanied by interstratified celadonite/smectite. In superimposed tuffs, smectites become prevalent and their colour changes from forest to olive green. Powder X‐ray microdiffraction and infrared microspectroscopy permit us to distinguish between green earth minerals in microsamples taken from works of art. The Ti contents and the Fe/Mg ratios help to indicate the presence of Bohemian green earth from Kadaň. We found this material in local 18th‐century works of art and also in paintings by Anton Kern (1709–47).  相似文献   
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The Middle Paleolithic industry of Kulbulak – a key stratified site in Uzbekistan – has been described as the Denticulate Mousterian. Our findings suggest that this definition is problematic because the principal diagnostic feature of this facies – the denticulate outline of tools – has resulted from natural processes. Accordingly, in our view, no such facies exists either at Kulbulak or in Western Central Asia at large.  相似文献   
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Lithic industries from the key strati?ed Upper Paleolithic site at Shugnou, Tajikistan, are described. Results of the technological, typological, and attributive analyses suggest that the industries of all horizons represent a single cultural tradition. Its evolution was marked by a gradual transformation of the microblade technology with the use of carinate techniques. This tradition is paralleled by lithic assemblages from Kulbulak layers 2.1 and 2.2, Kyzyl-Alma-2, and Dodekatym-2, Uzbekistan  相似文献   
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