秦系与泉州九日山

唐代著名诗人秦系与泉州九日山之间有密切关系,他为九日山留下丰厚的历史文化遗产。秦系曾两次隐居九日山,第一次为建中元年(780年)来,建中三年或四年离开;第二次为贞元七年(791年)至八年之间来,元和元年(806年)离开。在隐居九日山期间,秦系进行诗歌创作和注《老子》,与薛播、姜公辅、席相、欧阳詹、僧明惠等人有交游。九日山上与秦系相关的史迹,作为重要的历史文化资源,具有史料价值、教化价值和旅游价值。     

Visitors' wayfinding strategies and navigational aids in unfamiliar urban environment

Abstract

The way visitors to a new city wayfind in the digital era has been given less research attention than might be expected. The main aim of this study is to examine differences in wayfinding strategies between three groups of participants who used different navigational aids: a group with a paper map, a group with the Google Maps app, and a group relying on local signage only. Methods included GPS tracking, and voice recording of decision-making using the think-aloud method. 38 participants who had never visited Brisbane, Australia, were recruited and placed in one of the three groups. They undertook a two-hour pedestrian wayfinding task and other research activities in the city centre. The results show there are significant differences in wayfinding strategies used by the three groups of participants. The GPS group preferred to follow the suggested route by their navigator, most of them ‘locking in’ as digital navigators throughout the task. By contrast, the local-signage-only group used a diverse range of strategies to wayfind. Local-signage-only and paper map users tried to locate their position in the city by using piloting or path integration strategies, the GPS group just passively followed the guidance line showed by their device. On completion of the task the digital navigators recognized less spatial information. Surprisingly, the digital navigators did not feel less anxious compared with the two other groups. Urban planners and designers may need to re-think their design strategies to interrupt digital navigation. The provision of a more diverse set of digital navigation options, rather than just shortest-path route identification, is likely desirable to assist navigators who wish to experience more on their pedestrian journeys.     

Early Ordovician conodonts from Zhejiang Province,southeast China and their biostratigraphic and palaeobiogeographic implications

Forty-two conodont species are documented from the Liuxia, Shijiatou and Jingshan formations in Zhejiang Province of southeast China, located palaeogeographically on the Jiangnan Slope offshore to the Yangtze Platform. From these faunas, eight successive conodont biozones of Tremadocian to middle Floian (Early Ordovician) age are recognized, including the Cordylodus lindstromi Biozone, Cordylodus angulatus Biozone, Chosonodina herfurthi Biozone, Paltodus deltifer Biozone, Paroistodus proteus Biozone, Triangulodus bifidus Biozone, Serratognathus diversus Biozone and Prioniodus elegans Biozone. Several zonal index species of the Baltoscandian succession—Paltodus deltifer, Paroistodus proteus and Prioniodus elegans—are described and illustrated in detail for the first time from South China. Co-occurrence of P. proteus and Serratognathus bilobatus in several samples below the appearance of P. elegans also confirms correlation of the S. diversus Biozone (basal Floian) with the upper P. proteus Zone of the Baltoscandian succession. These Zhejiang faunas are dominated by pandemic forms, and are similar to those of the Open-Sea Realm elsewhere, inhabiting deep, offshore environments.     

欧阳修论考史

欧阳修在长期从事文献史料的收集、整理和研究工作中,始终能够坚持创新与求实并重原则,在考史方面得出了一些新的观点和认识,即:考史应"不没其实",力求史实真相;"慎于传疑",不轻易下结论;"勇断不惑",敢于创发己见;"不苟立异",反对刻意标新;"切于人事",排斥天命神学,这些至今仍具有方法论的意义。     

宝熙致罗振玉信札十七通

这里刊布的是旅顺博物馆所藏宝熙致罗振玉信札十七通,前十五通分别写于1912年、1928年和1936年,那时罗振玉居住在日本、天津和旅顺.后两通未考得书写时间,现一并刊布,以求教于高明.     

Checking Executive Power: A Simulation Model of Unilateral Executive Behavior

Abstract

What systematic influence does the court exert on unilateral authority? Though questions relating to the expansion and the exercise of unilateral executive power remain a perennial concern in political science, existing studies of the unilateral presidency generally focus on relations between the executive and the legislature, with less attention paid to the impact of the judiciary on executive behavior. Using a system of differential equations to model executive unilateralism and judicial constraints, simulation results identified four broad patterns of unilateral executive behavior and judicial influence. Overall, presidents strategically anticipate reactions from the courts and employ unilateral actions accordingly. Although they are cognizant of the court’s ability to strike down their actions, and thereby harming their preferred policy preferences and legacies, presidents nonetheless act unilaterally, albeit at a lower level. Results add to existing studies in separation of powers and constraints on unilateral executive behavior.     

泉石膏肓 长世无怀-明末清初“金陵画派”的形成及特色简

明末清初是中国绘画史上最具有创造活力的一个历史时期，诞生了一大批在中国绘画史上极具有影响力的中国画家，绘画流派纷呈。“金陵画派”即是明末清初崛起的一个非常重要的地域性绘画流派，在中国绘画史上占据有再要的地位。     

Early history of Chinese domestic sheep indicated by ancient DNA analysis of Bronze Age individuals

China has a long history of sheep husbandry, and has several indigenous sheep breeds. However, the exact geographic origin of Chinese domestic sheep remains unclear. To provide valuable genetic information for origin of Chinese domestic sheep, we performed an ancient DNA study on 22 sheep excavated from four Bronze Age archaeological sites in Northern China. Two lineages (A and B) were observed in ancient Chinese sheep, of which lineage A was predominant reaching a frequency of 95.5%. Furthermore, phylogenetic network showed that the most frequent haplotype in ancient sheep was the founder of lineage A. These results suggest that Lineage A may hold the key to understanding the origin of Chinese domestic sheep. Sequence sharing and principal component analysis showed that the ancient Chinese sheep had a close affinity to modern Chinese sheep. However, there was no significant breed structure among three modern Chinese sheep groups, making it difficult to determine their relationship to ancient Chinese sheep. Lastly, our results imply that ancient DNA analysis could provide a new way to investigate prehistoric East-West contact.