About time: age,period, and cohort effects on support for Quebec sovereignty

Can age, period and cohort effects help explain support for Quebec sovereignty? Previous work on this question has focused mostly on the effects of age and cohort. We contribute to this debate by adding a period perspective. As such, our study is the first to investigate the impact of age, cohort and period effects in a single study of opinion towards sovereignty in Quebec. We take advantage of an original dataset that includes survey data collected between 1985 and 2012. We use these data to examine the impact of age, birth year and survey year on support for this constitutional option among francophone Quebeckers. Our results are in line with previous work: we show that younger Quebeckers are more likely to support sovereignty, and that some cohorts – namely, respondents born between 1945 and 1959 – are also more likely to favour this option. Perhaps more surprisingly, we find that specific events are comparatively the most important factor to explain fluctuations in Quebeckers' attitudes towards sovereignty.     

中国外资银行空间网络演化的结构特征及其影响因素

本文基于外资银行网点数据,借鉴连锁型网络模型,构建了1990年、2001年和2015年中国外资银行空间网络并分析演化结构特征,最后借助条件Logit模型探讨了外资银行空间分布的影响因素。研究表明：①中国外资银行空间网络小世界网络特征明显,具有较大的集聚系数和较小的平均路径长度,网络中局域小集团网络化特征和核心-边缘结构明显。②随着网络规模的平稳增长,网络的有序性呈现出增强趋势,网络中金融连接度和金融可达性增加,金融传输效率和组织效率进一步提高,核心-边缘结构现象有所加剧。③外资银行空间分布的主导因素在不同时期不一样,1990年主导因素是市场机会和区位效应,2001年和2015年的主导因素是金融集聚,但指标的具体影响概率有所降低。     

信任与海外华商族群网络研究——来自田野的调查与思考

论文在南非约翰内斯堡、浙江义乌及青田三地田野调查之基础上,以从事中国商品国际贸易及相关产业的海外华商为研究对象,探析中国传统熟人社会中的"信任"与海外华商族群网络的关系问题。研究指出,人际信任,尤其是特殊信任是海外华商族群网络建构的基础。借助于信任,华商可以获得赊款采购、赊款货代、信用担保等优惠,进而有助于拓展其商业网络。商品交易过程中的信用实践、国际产业链的分工与合作关系以及"集体制裁"等,促成了华商族群网络中信任的产生及维系。     

石制品后埋藏微痕的实验研究述评

石制品经使用废弃后会经历漫长的后埋藏过程,在这个过程中石制品表面可能会产生和人类使用痕迹相似的微痕。关于石制品表面的后埋藏微痕实验研究,是通过实验模拟石制品的埋藏环境与过程,观察石制品表面因此而产生的后埋藏微痕,将之与使用微痕进行对比,从而更好地区分二者。当前有关石制品埋藏的实验研究主要集中在土壤埋藏及扰动、水流搬运活动和踩踏行为三个方面,较为全面的后埋藏实验研究对于提高石器微痕分析的准确性有重要意义。     

Khirbat al‐Mana‘iyya: an early Islamic‐period copper‐smelting site in south‐eastern Wadi ‘Araba,Jordan

Recent excavations in south‐eastern Wadi ‘Araba in Jordan have revealed the first early Islamic‐period copper‐smelting site known in the eastern side of the valley, which extends south of the Dead Sea to the Gulf of ‘Aqaba. Five test pits were excavated in 2012 at Khirbat al–Mana‘iyya, a prominent copper‐smelting camp in south‐eastern Wadi ‘Araba, Jordan. The results of these excavations demonstrate that the site was primarily active in the seventh–ninth century AD. Its distance from the copper sources of south‐west ‘Araba suggests that its location was chosen based on proximity to wood and water resources, rather than copper ore deposits. The discovery that the site dates to the early Islamic period has implications for previous and future work in south‐east ‘Araba. In particular, it challenges the common—until now—view of the region as virtually devoid of settlement during this period.     

Neolithic nomadism in south‐east Arabia — strontium and oxygen isotope ratios in human tooth enamel from al‐Buhais 18 and Umm al‐Quwain 2 in the Emirates of Sharjah and Umm al‐Quwain (UAE)

Human skeletal remains from the Neolithic sites BHS18 in the interior of the Sharjah Emirate and the Neolithic shell midden UAQ2 (Umm al‐Quwain) on the coast of the Persian Gulf (United Arab Emirates, UAE) were analysed for their isotope ratios of strontium (⁸⁷Sr/⁸⁶Sr) and oxygen (¹⁸O/¹⁶O). The results are not in agreement with earlier assumptions about a Neolithic nomadism between inland regions and the south‐eastern coast of the Persian Gulf. Existing evidence of nomadic movements of the people from BHS18 most possibly refers to transhumance within the mountains in the hinterland. The strontium isotope measurements on human skeletons from UAQ2 on the contrary indicate uninterrupted residence of this population on the coast. Nevertheless, evidence was found of individual mobility between inland regions and the coast.     

从秦简看秦的服饰文化

秦朝时,择吉文化传统已深入秦人思想,影响了秦人的生活.据秦简《日书》记载,缝制新衣或穿新衣都要选择黄道吉日.秦人做衣服所用的布料有麻布和丝绸,其中麻布还是货币的一种.麻布和丝绸都可以用铜钱从集市上购买,社会上已经有了服装加工的商户.秦时的服装价值不菲.政府对特定人群还发放衣服,分收费和免费两种情形.秦人的服装并非史学家所记载的全是黑色或者白色,而是五颜六色,色彩纷呈,没有大的等级差别.