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61.
A Box Containing Carpenter's Accessories from The Akko 1 Shipwreck,Israel: Archaeometallurgical Analysis of Surviving Ironwork
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The Akko 1 shipwreck was an Egyptian armed vessel, built at the beginning of the 19th century. A wooden saw handle and a box containing iron nails and two split pins were discovered towards the stern. Given their function, location and context, these were part of the ship's carpenter's tools and accessories. A methodology was developed for conducting systematic metallurgical analysis in order to understand the manufacturing process of the surviving ironwork items, as well as to enlarge our knowledge regarding ironworking technologies during the early 19th century. Such methodology may assist in the future understanding of the technological evolution of similar wrought‐iron objects. The results demonstrated that the artefacts have a wrought‐iron heterogeneous microstructure and were manufactured by hot‐working prior to surface hardening by pack carburization. 相似文献
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LOCALIZATION AND INDUSTRY CLUSTERING ECONOMETRICS: AN ASSESSMENT OF GIBBS MODELS FOR SPATIAL POINT PROCESSES
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The objective of this paper is to assess an approach to statistical modeling of point referenced establishment data that permit inclusion of “environmental” or establishment‐specific covariates and specific forms of interestablishment interaction. Gibbs models are used to decompose the conditional intensity of the spatial point process into trend and interaction components. The trend is composed of access measures (primarily different classes of roads) and three different interaction processes are tested: Geyer, area interaction, and Strauss hard core. While the models used have proved to be useful in ecology, we are unaware of any applications to establishment or firm data. In empirical application, the models yield intuitively appealing results for the trend component, and the ability to specify the interaction component gives deeper insights into interestablishment spatial dynamics than any previously published methods. 相似文献
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We examine the relationship between individual commuting behavior and household responsibilities, with a focus on gender differences in that relationship. Using the Dutch Time Use Survey for the years 2000 and 2005, we analyze the relationship between commuting time, home production, and childcare. To deal with reverse causality, we use Propenstity Score Matching techniques to obtain imputed data for individuals. We find that the effect of home production on commuting time for women is more than double that for men, while childcare time has an effect on women's commuting behavior only. Our results shedding light on the Household Responsibility Hypothesis. 相似文献
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Charles L. Griswold 《History of European Ideas》2016,42(2):276-301
SUMMARYWhy did Rousseau cast the substance of the Second Discourse in the form of a genealogy? In this essay the author attempts to work out the relation between the literary form (genealogical narrative, as the author calls it) of the Discourse's two main parts and the content. A key thesis of Rousseau's text concerns our lack of self-knowledge, indeed, our ignorance of our ignorance. The author argues that in a number of ways genealogical narrative is meant to respond to that lack. In the course of his discussion he comments on Rousseau's puzzling remarks in the Second Discourse about his expository method. Further, given the thesis that we lack self-knowledge, Rousseau owes us an account of his genesis as self-knowing genealogist. He attempts to do so in part through his narrative of the ‘illumination of Vincennes’. The author examines that narrative as well, reading it and the Discourse in light of each other. Can Rousseau resolve the problems of self-reference that the philosophical use of genealogy often leads to? The article discusses this complex metaphilosophical problem, along with views about the value of genealogical accounts, in light of recent work by Robert Guay, John Kekes, Alasdair MacIntyre, and Frederick Neuhouser, among others. 相似文献
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