Caribou metapodial shaft splinter technology

A technique for the extraction of long narrow bone splinters for the production of bone artifacts is reported. Caribou metapodial bones from the Paxson Lake site, central Alaska, were modified by striking behind the lateral and medial borders of the posterior surface using a percussion method. The resulting fragments are termed shaft splinter cores and shaft splinters. The long shaft splinters may have been used for producing a variety of bone implements.     

An integrated approach to reconstruct the role of the heat treatment within the reduction sequence of chert artefacts: The case of the early Neolithic site of Lugo di Grezzana (north-eastern Italy)

The lithic assemblage from the well-known site of Lugo di Grezzana (Italy) attributable to the Fiorano group (5,300–4,900 BC cal) is analysed to shed new insights on the early Neolithic lithic technology in North-Eastern Italy. Techno-typological data are discussed allowing detailed reconstruction of the reduction sequence, thanks also to several refittings. A complex laminar production with several technical objectives has been identified. Whereas clues for the heat treatment of lithic materials have been identified, we verified it by a combined experimental approach. In the first place, we used density measurements, which already proved to be useful for prescreening analysis, to detect potentially heated artefacts. Afterward, we performed Fourier Transform Infrared (FT-IR) spectroscopy tests to assess the actual (de)hydration condition of the siliceous materials. Reflectance spectra have been acquired, analysing any item and avoiding any constraint related to both morphology and thickness of the sample. The archaeometric results, combined with the reduction sequence reconstruction, provide new indications on the technical capabilities and knowledge of the human groups that inhabited the region during the early Neolithic.     

Ceramic Technology And Resource Use During The Early Neolithic In Central‐Southern Portugal

Petrographic analysis of 49 sediments and 63 Neolithic ceramics from eight sites of Estremadura and six sites of the Algarve of central and southern Portugal, respectively, discerned distinct production technologies for each area. Raw materials available near archaeological sites were utilized. Fabrics that do not correspond to regionally available materials, however, indicate imports or migration. This suggests the existence of bidirectional maritime routes rather than south–north only, as predicted in current models of the neolithization of coastal Portugal. Seven ceramics and seven sediments were selected for elemental analysis. The results supported the patterns in the petrographic analysis.     

‘To Form a Correct Estimate of their Nothingness when Compared with It’: British Exhibitions of Military Technology in the Abyssinian and Ashanti Expeditions

This paper examines the portrayal and reception of novel military technology as constructed spectacle in the popular coverage of the British Abyssinian (1868) and Ashanti (1873–74) expeditions. A series of cases are explored in which commanders attempted to frighten and subdue African allies and enemies through the mere presentation of technology, as are the interpretations and subsequent representations of African reactions which were made by British officers and journalists.     

Human Trafficking and Online Networks: Policy,Analysis, and Ignorance

Dominant anti‐trafficking policy discourses represent trafficking as an issue of crime, “illegal” migration, victimhood and humanitarianism. Such a narrow focus is not an adequate response to the interplay between technology, trafficking and anti‐trafficking. This article explores different levels of analysis and the interplay between human trafficking and technology. We argue for a shift from policy discourses with a very limited focus on crime and victimisation to more systemic understandings of trafficking and more robust micro‐analyses of trafficking and everyday life. The article calls for an agnotological understanding of policy responses to trafficking and technology: these depend upon the production of ignorance. We critique limitations in policy understandings of trafficking‐related aspects of online spaces, and argue for better engagement with online networks. We conclude that there is a need to move beyond a focus on “new” technology and exceptionalist claims about “modern slavery” towards greater attention to everyday exploitation within neoliberalism.     

Export of environmental technologies by publicly owned companies: approaches,drivers and obstacles among Swedish municipal companies

This article focuses on the export of environmental technology by publicly owned companies. The export of such technologies has the potential to contribute to economic competitiveness and environmental sustainability. However, research on this emerging topic has so far largely focused on privately owned SMEs compared to publicly owned companies. Using interviews with 12 Swedish municipally owned companies which develop such systems and a survey with 36 others, we analyse their approaches, drivers for and obstacles to export. These companies use a combination of different approaches such as subsidiaries, independent projects, licensing and private-public partnerships to engage in export. However, in contrast to private companies which are often driven by internal factors such as extra sales, these municipally owned companies are largely motivated by external factors such as customer requests and opportunities to contribute to environmental sustainability. Furthermore, their main export barriers relate to differences between the business culture and political systems in their home and target markets. Their export experiences are influenced by their municipal ownership, the types of technologies they develop and the institutional contexts within which they operate. This study reveals an actor type struggling to find a balance between domestic obligations and commercialization in international markets.     

Modelling the built environment: Spatial patterns,siting techniques and layout works of non-monumental architecture in Early Bronze Age Eastern Arabia

Interest in the built environment of Early Bronze Age (EBA) Eastern Arabia is rapidly increasing with the emergence of new field data from the excavation of settlement sites. However, little is known about architectural planning and spatial patterns in the region. This article explores non-monumental architecture throughout the third millennium BCE. A series of methods (Pythagorean triples, modular grids, interception of circles) were used to assess the geometric and metric characteristics of buildings, and to stress regularities and variation in the long term. The results of these analyses suggest the application of specific techniques in layout and construction works: the intersection of circles during the Hafit occupations, and more sophisticated techniques, combining the properties of circles and triangles, during the Umm an-Nar period. The diachronic approach allowed by the temporal span of the occupations highlights a firm progression of architectural paradigms and building crafts throughout the EBA. The evidence hints at the existence of a specialised workforce since the dawn of the Bronze Age, and reveals a sharp increase of technicity and standardisation towards the end of the third millennium.     

Building Forcello: Etruscan wattle-and-daub technique in the Po Plain (Bagnolo San Vito,Mantua, northern Italy)

The study analyses through an interdisciplinary approach the wattle-and-daub building technique used on the Po Plain of northern Italy, focusing on the archaeological evidence from the Etruscan site of Forcello, near Bagnolo San Vito (Mantua) (540–375 bce ). Wattle and daub is widespread across different times and periods, and is particularly common in regions such as the Po Plain, where stone sources for construction are not immediately available. Thanks to a combined archaeometric, geological and anthracological study, the paper provides new insights on a fifth-century bce building structure from Forcello. The findings reveal information on the life history of this feature, including its construction, maintenance and final destruction. The research also sheds a new light on the wattle-and-daub technique and on the interaction between people and the Po Plain Etruscan palaeoenvironment.     

二十世纪有关纸的考古发现不能否定蔡伦发明造纸术（2）

近几十年来,我国考古工作曾先后在一些西汉遗址和墓葬中发现了若干纸状残片,于是引起国内外许多学和广大人民的关注和提出疑问。是否蔡伦前约二百年就有了纸?造纸术还是不是蔡伦发明的?新发掘的纸状物到底是个什么样?……经对历次的发掘作了详细的调查研究和分析化验,结论认为：20世纪有关纸的考古发现不能否定蔡伦发明造纸术。     

党的三代领导人的科技战略思想

在科技落后的发展中国家追赶世界科技先进水平的征程中 ,制定正确的、适合本国国情的科技发展战略起着决定性的作用。新中国成立后的 50年里 ,中共三代领导人为此进行了艰辛的探索 ,在理论上成功地解决了我国科学技术发展的地位、立足点、动力、路径和支撑力量等一系列重大战略问题 ,逐步形成了有中国特色的科技战略思想 ,对中国科学技术事业的迅速崛起起到巨大的指导作用