创新网络研究进展述评与展望

创新网络解读主要从网络尺度、网络演化及网络机理等方面展开研究,本文对创新网络已有研究成果及新转向进行评述及展望：①网络尺度视角,已有研究多对不同尺度进行区分研究,缺乏对不同尺度的整合;多强调发达国家网络发展模式,忽略对发展中国家特有结构及路径的理论总结;因此多尺度耦合网络研究成为未来的方向。②网络演化视角,经历了从网络节点结构到网络联系演化的转向,将多层联系结合进行整体网络演化的研究需更关注包括各类组织、个人、技术及空间等网络情境在内的整体分析。③网络机理研究关注多维邻近、网络管制及外部创新情境作用,而多维临近综合作用分析及我国特定情境嵌入全球网络等问题都值得进一步深入探讨。     

论《奥德赛》的和平结局

荷马史诗《奥德赛》叙述的是特洛伊战争后英雄奥德修斯历险回归和诛杀求婚人的故事。史诗最后以奥德修斯与伊达卡人缔结和平结局。史诗的和平结局不仅与"怜悯"主题相吻合,而且与求婚人的罪行相一致。史诗从第一卷到最后一卷中有关埃吉斯托斯之死的多次插话,预示求婚人的被杀下场,同时也为史诗的和平结局作了合理的铺垫。     

南明“奸臣”负面形象在后世的塑造——以田仰为例的考察

清代史家深受东林、复社门户成见的影响,在南明史著述中塑造了一批"奸臣"的负面形象。田仰虽有坚持抗清的事迹,但因与马士英关系密切,也被党社人士和后世学者视为奸臣。钱海岳《南明史》沿袭了传统观点,将田仰列入《奸臣传》。部分后世南明史著述为贬斥和丑化"奸臣",存在着不少歪曲史实之处。这些著述对田仰的抗清活动着墨甚少,并杜撰出他的若干负面事迹,使其形象遭到了彻底的奸邪化。     

What Gave Thubten Palden the Idea to Burn Himself？

Thin and dressed in a red, yellow-lined monk＇s robe, 24-year-old Thubten Palden was seated quietly before me. His purity and simplicity were touched with a little shyness. It was hard to believe that such a young monk of the Nyingma Sect had the clear intention to burn himselfi Thubten Palden said that the idea occurred to him after he had an Internet chat with a Tibetan woman who was in India last summer. Intruth, the Tibetan woman （named ＂Trewa Online＂） is responsible for the overseas network of＂Independent Tibet＂.     

Give Me a Pot of Sweet Tea

For those who come to Tibet for the first time,butter tea is on their list to try.I, however,am an exception to the rule because butter tea just does not agree with me. I prefer the delicate fragrance of sweet tea but enjoy watching Tibetans light butterburning lamps and the serenity of the light from butter lamps in dimly lit monasteries. During my trip through the middle of nowhere on the plateau,we had a happy encounter with some herdsmen taking a break from their journey.     

浅析战后欧洲一体化理论

第二次世界大战以后,欧洲一体化的理论丰富多彩。如果按照民族国家在一体化中的作用来分,大致可分为超国家主义理论和国家中心主义理论。前者包括联邦主义、功能主义和新功能主义;后者包括邦联主义、政府间主义、自由政府间主义和民族国家选择论。本文对这几种理论分别进行了介绍和分析,以加深对欧洲一体化的理解。     

Experimental Study on Damage Behavior of Reinforced Concrete Shear Walls Subjected to Cyclic Loads

Previous experimental research on shear walls has mainly focused on load carrying capacity, deformation, or hysteretic characteristics, with relatively little attention paid to individual damage states and their corresponding responses during the entire loading process until failure. The damage behavior of seven reinforced concrete shear wall specimens subjected to cyclic loading is presented in this study. The effects of the axial load ratio, transverse reinforcement ratio of confining boundary elements, and cross-section shape on damage characteristics, ductility, shear deformation, and crack width of the specimens were analyzed comprehensively.     

Fruit stones from Tiao Lei's tomb of Jiangxi in China,and their palaeoethnobotanical significance

Fruit stones were discovered in Mr. Tiao Lei's Tomb (around 300 AD) at Nanchang, China. The morphology and anatomy of the fruit stones were investigated. They are identified as belonging to three species, namely, Chinese plum (Prunus salicina Lindley), red bayberry (Myrica rubra Sieb. et Zucc.), and Chinese date (Ziziphus jujuba Mill.). These stones suggest the possibility of orchards in the local area, and the fresh or processed drupes of these three species probably played important roles in the tomb owner's life.     

Origin of dolomites in the Cambrian (upper 3rd‐Furongian) formation,south‐eastern Sichuan Basin,China

The origin of large‐scale ancient dolomite is one of the most hotly debated topics in sedimentology. The Loushanguan group of the upper 3rd‐Furongian Cambrian series on the south‐eastern margin of the Sichuan Basin consists of numerous dolomites, and the origins of these dolomites have never been reported previously although they are probably good hydrocarbon reservoirs. Based on a systematic analysis of petrology, fluid inclusions, carbon and oxygen isotopes, trace elements and rare earth elements (REEs), this study provides some unique insights into the origins of the dolomites. Four dolomite types have been identified in the study area: dolomicrite, fabric‐retentive oolitic dolomite, fabric‐obliterative dolomite and saddle dolomite cement. In the dolomicrite and fabric‐retentive oolitic dolomite, high Sr contents (with respect to the fabric‐obliterative dolomite) and the lack of two‐phase aqueous inclusions suggest that they formed at shallow‐to‐intermediate burial depths at low temperatures (<50–60°C). Carbon and oxygen isotopes and seawater‐like REE+Y characteristics of the dolomicrite and fabric‐retentive oolitic dolomite indicate that the dolomitizing fluids were evaporated seawater or slightly modified seawater. The obliteration of the original sedimentary fabric and relatively low δ¹⁸O and Sr values compared to the fabric‐retentive dolomite indicate that fabric‐obliterative dolomite formed at intermediate‐to‐deep burial diagenesis. The chemical composition approaches pure dolomite and the REE+Y characteristics are similar to those of the fabric‐retentive dolomite, indicating that the fabric‐obliterative dolomite was formed due to the recrystallization of the previously formed fabric‐retentive dolomite at elevated burial depths and temperatures. High fluid inclusion homogenization temperatures (115–150°C), low δ¹⁸O values, nonplanar‐a crystals and seawater‐like REE+Y characteristics suggest that saddle dolomite cement formed by reprecipitation of dolomite that related to seawater‐driven and deep burial fluid. In the study area, dolomicrite and fabric‐retentive oolitic dolomite may have been formed by penecontemporaneous or seepage‐reflux dolomitization during early‐stage diagenesis. Subsequently, during progressive burial, most of the fabric‐retentive dolomite was converted into fabric‐obliterative dolomite by recrystallization. This study confirms that fabric‐obliterative dolomite was the main dolomite type, and although deeply buried, these Cambrian dolomites most likely have preserved coeval seawater geochemical signals.     

A Socio‐Geographic Perspective on Human Activities in Social Media

Location‐based social media make it possible to understand social and geographic aspects of human activities. However, previous studies have mostly examined these two aspects separately without looking at how they are linked. The study aims to connect two aspects by investigating whether there is any correlation between social connections and users' check‐in locations from a socio‐geographic perspective. We constructed three types of networks: a people–people network, a location–location network, and a city–city network from former location‐based social media Brightkite and Gowalla in the U.S., based on users' check‐in locations and their friendships. We adopted some complexity science methods such as power‐law detection and head/tail breaks classification method for analysis and visualization. Head/tail breaks recursively partitions data into a few large things in the head and many small things in the tail. By analyzing check‐in locations, we found that users' check‐in patterns are heterogeneous at both the individual and collective levels. We also discovered that users' first or most frequent check‐in locations can be the representatives of users' spatial information. The constructed networks based on these locations are very heterogeneous, as indicated by the high ht‐index. Most importantly, the node degree of the networks correlates highly with the population at locations (mostly with R² being 0.7) or cities (above 0.9). This correlation indicates that the geographic distributions of the social media users relate highly to their online social connections.