URANIUM‐SERIES AND LUMINESCENCE DATING OF VOLCANIC LITHIC ARTEFACTS*

U‐series dating was used to determine the growth rate of a feldspar‐to‐clay weathering rind in a mid‐Holocene Cascade–Olcott tradition andesite core, and luminescence dating (last exposure to sunlight) was used to date fine‐grained feldspars scraped from the surfaces of similar buried artefacts from a ¹⁴C‐sediment‐dated archaeological site (45KI464) on the wet western slope of the Cascade Mountains of Washington. For U‐series dating, we measured ²²⁶Ra excess (²²⁶Ra excess =²²⁶Ra –²³⁰Th) in five stratigraphic depth controlled rind scrapings. ²³⁸U, ²³²Th and ²³⁰Th were counted by alpha spectrometry, and ²²⁶Ra and ²¹⁰Pb were counted by gamma spectrometry on each sub‐sample.     

Price Dynamics in the International Wheat Market: Modeling with Error Correction and Directed Acyclic Graphs

In this paper we examine dynamic relationships among wheat prices from five countries for the years 1981–1999. Error correction models and directed acyclic graphs are employed with observational data to sort–out the dynamic causal relationships among prices from major wheat producing regions: Canada, the European Union, Argentina, Australia, and the United States. An ambiguity related to the cyclic or acyclic flow of information between Canada and Australia is uncovered. We condition our analysis on the assumption that information flow is acyclic. The empirical results show that Canada and the U.S. are leaders in the pricing of wheat in these markets. The U.S. has a significant effect on three markets excluding Canada.     

西周至南北自制玻璃概述

我国玻璃起步较晚,大体始于西周初或先周(殷末),主要是蓝色、浅蓝色或绿色玻璃珠管,与玉、玛瑙配合制成“杂佩”。其时玻璃的主要成分为二氧化硅,并含有少量铅、钡,故称为铅钡玻璃,与西方钠钙玻璃不同而独树一帜。春秋战国时期,西方蜻蜓眼玻璃珠输入我国,从此,以仿羊脂白玉美若明月的“隋侯珠”为代表的自制玻璃与外来玻璃并存。西方(大月氏)吹制玻璃术于汉魏传入我国之后,也出现了自制的空心玻璃器皿。     

评《文献通考·经籍考》辑录式的解题

辑录式的文献解题在马端临《文献通考·经籍考》得到创造性运用。《经籍考》对收录的四部群书“考其流传之真伪”,显示出马氏史学通识。     

日本经济现状的几点思考

从20世纪90年代开始,日本经济就忍受着失去方向感的痛苦。它不是首先把国家转变为全球经济的一部分,同时得到全球化的好处,而是希望某些行业作为一个全球化的后院来为世界的其他地方服务,不考虑从整体上让国家融入世界经济之中。日本希望自己的新经济高速发展,却不愿意对全球空间开放,也不愿意放弃其经济的旧的习惯领域。因此日本经济错过了最好的发展时机,在衰退的循环中一直走不出来。日本的教训很值得我们进一步研究。     

《墉城集仙录》采自《列仙传》篇目探析——兼论杜光庭对房中术之态度

《墉城集仙录》采自《列仙传》的女仙传记有八篇左右。其中,辑自《三洞群仙录》的《江妃解佩》很可能直接采自《韩诗外传》。对这八篇仙传,杜光庭从内容和形式上均作了颇具匠心的修改润饰。从所作的增删改易中,可以看出杜氏仙道类传记对前代仙传进行文学化和道教化的加工过程,另外也可看出杜光庭在特殊背景下对房中术所持的保守和慎重态度。     

《续文献通考·选举考·金登科总目》订补

《续文献通考·选举考·金登科总目》堪称金代科举史纲要,简括清楚为其特点。但也存在着诸如遗漏、舛误、浑漫之类的问题,凡18处。对此予以订补,自会使其重要的史料价值得到进一步开掘和利用。     

天亡簋与太公望

天亡簋器主的名字叫天亡,孙作云先生认为天亡就是古书中的史佚,于省吾先生认为天亡是文献记载中的太公望。本文赞同天亡为太公望之说,并申述其理由。     

孟光涛与贵州山水画

叙述与孟光涛先生的交往,介绍孟先生山水画的特色及在贵州美术史上的地位。     

包山楚简选释三则

包山楚简中所涉及的人名很多。本文从古文字的字形、音韵出发,对其中的一姓二名三个字形提出新的意见:将"■"字改释为"■","■"之异体,疑与鲁之"■"邑有关;将"■"字改释为"■","■"、"害"均可能作为声符,但以从"害"得声的可能性更大;将"■"改释为"■",从"身"、"厷"声,"肱"之异体。