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We present an outstanding example of successful prehistoric double trephination dating between 2700 and 2200 BC, most likely to the Corded Ware culture, at the end of the Neolithic Age. The particularity of this case is the presence of a double trephination, one frontal over the sinus sagittal superior and one parietal right. There is evidence that the patient survived months to years after the operations. The purpose of the procedure is not known. The case confirms the astonishing degree of technical skills reached in Saxony-Anhalt over 4500 years ago without anesthetic, antiseptic, or technologic aids.  相似文献   
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This study deals with collective representations of handcrafts, which were elaborated by the Song (960–1279) literati. Stirred by the strong demand of urban populations, this ideology was constituted combining the literati’s interpretations of the classical tradition, the social promotion of talent and technical know-how, and the standardization of specialized knowledge in response to government demands. This process had a long-term social impact, in terms of both the professional identity of workers, and the social perceptions of technical knowledge.  相似文献   
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Christian Parenti 《对极》2015,47(4):829-848
My argument is that the state is fundamental to the value form because it delivers the use values of non‐human nature to the process of capital accumulation. Capital cannot, and historically does not, capture non‐human nature without the participation of the state. The state delivers the utilities of extra‐human nature to the accumulation process by creating property regimes, physical infrastructure, and scientific knowledge. As such, the state is a crucial under‐theorized political membrane in the ecological metabolism of capitalism and the value form. The capitalist states inherently environmental qualities are rooted in its fundamentally territorial qualities. Where are the utilities of non‐human nature found? On the surface of the earth. What institutions ultimately control the surface of the earth? Territorially defined national states. The example of state formation in the early years of the United States is used to illustrate these ideas.  相似文献   
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A small amber fragment from the period of Roman occupation of Numantia (Garray, Spain) was characterised by Fourier transformed infrared spectroscopy and optical microscopy. The material was found to be a polystyrene-like material, which is a very rare fossil resin known as Siegburgite or class III amber. Until now, this material was found in Europe only at two sites, both localised in Germany, and it is the first time that this type of amber was identified in wrought archaeological artefacts. The discussion includes the applicability of the method to distinguish false from true and amber of different origins, its use and trading as well as a hypothesis for a transport route. The study highlights the need for a more systematic study of archaeological amber remains. The finding also proves the exploitation and trading of local, non-Baltic amber deposits throughout the Roman Empire.  相似文献   
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