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91.
A relatively closely spaced set of unpegged mortise-and-tenon joints was the significant element revealed in the 7th-century AD shipwreck, Dor D. It provides additional information for the transitional period of shipbuilding in the Mediterranean, and together with additional wrecks it establishes a better database for ship construction in the 4th–11th centuries AD. The preliminary conclusions tend to draw a slightly more complicated picture of the general evolutionary trend, since they present some features that have traditionally been considered as a disappearing technique. 相似文献
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Walter Crist Alex de Voogt Anne‐Elizabeth Dunn‐Vaturi 《Oxford Journal of Archaeology》2016,35(2):179-196
This re‐evaluation of existing data on board games from the Near Eastern Bronze Age demonstrates their function as social lubricants in cross‐cultural interaction. Board games are situated theoretically as liminoid practices, which lie outside the bounds of normative social behaviour and allow for interaction across social boundaries. Utilizing double‐sided game boards, with an indigenous game on one side and a newly introduced game on the other, the games of senet, mehen and twenty squares provide evidence for social interactions. Cypriots had adopted Egyptian mehen and senet by the third millennium BC, and indigenized the games. This lies in contrast to the game of twenty squares, which had a particular role among elites in the Late Bronze Age interaction sphere. This anthropological discussion of evidence relating to gaming seeks to inspire further research on the role of board games in society. 相似文献
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Radiocarbon dates are presented for distinctive types of British Late Neolithic pottery, identifying questions which cannot yet be resolved. 相似文献
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Alex Anas 《Journal of regional science》1988,28(4):511-530
ABSTRACT. Boyce et al. (1981, 1983) have proposed and implementd the use of observed entropy levels to estimate the travel-cost coefficient in mathematical programming models of network equilibrium which involve logit route-choice probabilities. This so-called “dispersion-constrained” model is shown to give severely biased and statistically inefficient underestimates. A natural counterpart, the entropy-maximizing model, is proposed here and overestimates the travel-cost coefficient with much lower bias and much higher statistical efficiency. Even though the two models are mathematically homeomorphic in some respects, they have vastly different statistical properties. It follows that the use of observed entropy levels is undesirable and should be avoided, since maximizing entropy provides an unambiguously superior alternative. 相似文献
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Despite widespread public interest on the topic of whaling, there is at present relatively little work on how philosophy might contribute to analysis of the status of whaling in international law. When philosophers have looked at the topic of whaling, they have confined their attention to a fairly narrow set of ethical questions, such as whether international law should permit certain forms of traditional indigenous whaling or extend legal rights to whales themselves. However, there is another important issue which has so far been largely neglected by philosophy, even though it is at the forefront of current international legal disputes over the status of whaling: the issue of so-called ‘scientific whaling’. This article considers the international legal dispute between Australia, New Zealand and Japan over the latter’s lethal harvesting of whales in the Southern Ocean, and the recent attempt at resolution by the International Court of Justice. On its face, this required that the Court demarcate ‘scientific’ from ‘unscientific’ activity; however, it effectively baulked at this task. The authors argue that this approach of the Court was unfortunate, and that demarcating science from commerce is not only achievable in philosophy, but might also inform international legal practice. Resolving this issue is important for genuine progress to be made in the current international stand-off over Japanese whaling in the Southern Ocean. 相似文献
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In this article, we study the U.S. Senate to understand how legislators' previous experiences in elected office influence their political behavior. We posit that, as a result of their experiences in office, former governors in the Senate are less partisan than their colleagues. We code the political jobs held by senators between 1983 and 2015 and analyze the effects of these careers on party loyalty in Senate floor votes. We find that gubernatorial service is associated with a 7–8% decrease in Party Unity. We test several hypotheses for the observed “governor effect” and find that, relative to their colleagues, former governors are supported by donor networks that are less ideologically extreme. We conclude that the unique experiences associated with serving as governor, along with the personalized nature of governors' electoral support coalitions, affect a senator's relationship with the party. Ultimately, our analysis illuminates how personal attributes, such as prior experience in elected office, can inform the study of legislative behavior. 相似文献