北京城市空间认知的影响因素分析

城市空间认知影响因素分析与认知空间格局研究具有同等的重要性。论文基于北京城市空间认知调查问卷数据,引入居民属性等16个变量,利用二值Logistic回归方法,提炼出23个认知地点整体以及交通节点、商场、休闲地三种类型地点的认知影响因素。发现:第一,不同类型地点的认知率影响因素存在异同,其中,存在职住变更是最为显著的共性因子。第二,各类地点中的显著影响因子对认知率的作用大小有明显差异,年龄46-55岁变量是23地点认知率的最重要影响因素,交通节点和商场认知率最重要的影响因素为就业内城四区,而就业地与休闲地距离小于等于6km变量对休闲地认知率的影响最大。第三,各类模型中的影响因素类型不同且影响程度有很大差异,故具有不同属性信息组合的居民认知率不同。     

港口体系演化的影响因素及驱动机制分析

区域港口体系的结构和层次是不断变化的,根据各港口功能和作用的大小不同的变化,港口体系演化变现为集中化发展和分散化发展两种趋势。影响港口体系演化的因素很多,具体可归纳为技术进步因素、区位因素、航运市场因素、政策和政治因素四类。在集装箱革命之前,区位因素是影响港口体系结构的主要因素,而集装箱化之后,新技术的应用、航运市场在港口体系层次变化中的作用越来越明显。政策和政治因素是港口体系发展的背景因素,其影响力一直较大。最后通过构建港口体系动力模型,详细阐述了各个因素对港口体系演化的影响过程和驱动机制,分析了不同因素对于港口体系集中化和分散化发展的促进和阻碍作用。     

Windward Sailing Capabilities of Ancient Vessels

Weatherliness is widely considered to have been an important ability for ancient sailing vessels, yet little firm experimental or theoretical data on the matter is available. However, by drawing on a variety of sources of model-test data and trials of full-scale replicas, it is possible to establish a general picture of what might have been possible. It appears that while ancient sailing vessels may have been capable of modest windward performance in moderate conditions and with a freshly-cleaned hull, this capability quickly disappeared as the hull became fouled and/or the wind and sea conditions deteriorated.
© 2008 The Author     

Sources and composition of fluids associated with fluorite deposits of Asturias (N Spain)

The fluorite deposits of Asturias (northern Iberian Peninsula) are hosted by rocks of Permo‐Triassic and Palaeozoic age. Fluid inclusions in ore and gangue minerals show homogenization temperatures from 80 to 170°C and the presence of two types of fluids: an H₂O–NaCl low‐salinity fluid (<8 eq. wt% NaCl) and an H₂O–NaCl–CaCl₂ fluid (7–13 wt% NaCl and 11–14 wt% CaCl₂). The low salinity and the Cl/Br and Na/Br ratios (Cl/Br_molar 100–700 and Na/Br_molar 20–700) are consistent with an evaporated sea water origin of this fluid. The other end‐member of the mixture was highly saline brine with high Cl/Br and Na/Br ratios (Cl/Br_molar 700–13 000 and Na/Br_molar 700–11 000) generated after dissolution of Triassic age evaporites. LA‐ICP‐MS analyses of fluid inclusions in fluorite reveal higher Zn, Pb and Ba contents in the high‐salinity fluids (160–500, 90–170, 320–480 p.p.m. respectively) than in the low‐salinity fluid (75–230, 25–150 and 100–300 p.p.m. respectively). The metal content of the fluids appears to decrease from E to W, from Berbes to La Collada and to Villabona. The source of F is probably related to leaching of volcanic rocks of Permian age. Brines circulated along faults into the Palaeozoic basement. Evaporated sea water was present in permeable rocks and faults along or above the unconformity between the Permo‐Triassic sediments and the Palaeozoic basement. Mineralization formed when the deep brines mixed with the surficial fluids in carbonates, breccias and fractures resulting in the formation of veins and stratabound bodies of fluorite, barite, calcite, dolomite and quartz and minor amounts of sulphides. Fluid movement and mineralization occurred between Late Triassic and Late Jurassic times, probably associated with rifting events related to the opening of the Atlantic Ocean. This model is also consistent with the geodynamic setting of other fluorite‐rich districts in Europe.     

Neoliberalism and the Aestheticization of New Middle‐Class Landscapes

Abstract: If according to Terry Eagleton (The Ideology of the Aesthetic 1990:28), the aesthetic is from the start “a contradictory, double‐edged concept”, how are seemingly innocent acts of viewing and consuming aesthetically pleasing landscapes implicated in the neoliberal politics of urban restructuring? Using contemporary Shanghai as a case study, this paper critically examines the role of the aesthetic in the politics of exclusion and urban segregation in post‐Socialist Shanghai where the restructuring and commodification of erstwhile public welfare housing have led to the rapid development of private “middle‐class” gated enclaves. A central objective of this paper is to excavate the underlying cultural politics of neoliberalism and demonstrate how the aestheticization of urban spaces in Shanghai has become increasingly intertwined with and accentuated by neoliberal ideologies and exclusionary practices in the city. Imbricated in the pristine neighborhoods of Shanghai's gated communities are the fault lines of social division and class distinction that are rapidly transforming urban China.     

潮湿土遗址隔水防潮技术对比研究

潮湿土遗址的破坏,很大程度上是受水的影响,目前国内几个潮湿土遗址经常使用的防水隔水措施主要有:挡水墙、隔水廊道、拱券法和抽水法。经过对几种方法进行总结评价,可看出拱券法是最有效的方法。     

意识形态考古理论与实践初探

意识形态考古主要利用考古资料,研究古代社会的政治、法律、道德等观念。史前时期多数考古学文化没有正式法律,道德观念又从属于政治理念,意识形态考古的核心即为政治意识考古研究。实践中,可以通过宇宙观考古和原始宗教考古分析所得到的一些重要现象和线索,来透视社会政治意识的形态。     

南阳秦汉考古学文化内涵及其历史诠释——以南阳丰泰墓地为个案进行的考察

南阳丰泰墓地的时间跨度由战国晚期至东汉晚期,其文化内涵在器物形态、组合特征、墓葬结构等方面都有独具特色的地方。战国晚期,南阳地区政权更迭频繁,韩、楚、秦的文化势力也因此相继出现,共存发展,至战国末期形成了融三者于一体的新型仿铜陶礼器组合,并在秦汉时期迅速发展,成为主流的文明形态。与此同时,以双耳罐为代表的楚系地方文明不绝如缕,顽强生存。两者共同构成了秦汉文明的基础。这种新型仿铜陶礼器文明自身的发展变化,及其与楚系地方文明之间的互动关系,印证了秦汉中央集权政治统治力的强弱变化,以及秦汉社会盛衰的历程。西汉晚期以后开始流行的模型明器,则昭示着新的丧葬观念、丧葬礼仪的诞生。     

“Every Iraqi's Nightmare”: Blogging Peace in Occupied Baghdad

Abstract: The importance of war blogs is increasingly acknowledged, but their political dimensions remain largely unexplored. This paper provides a series of critical readings of Riverbend's Baghdad Burning and addresses two main issues. First, there is a systematic tension between the ways in which Riverbend is “subalternized” (by her readers and herself) and her attempts to reclaim the ground upon which post‐invasion Iraq is represented. Second, the invasion has fundamentally reworked the ways in which the figure of the “Iraqi” is constructed. These epistemological and ontological processes are always complex and partial: they occur at a variety of geographical scales and they are mobilized by a diversity of actors, making it very difficult to pin them down in time and space. Nevertheless, they highlight the difficulties of reducing Riverbend's project of resistance to a simple act of speaking out: of telling the reader what life is “really like” in occupied Baghdad.     

Small and common: the oldest tropical Chrysomelidae (Insecta: Coleoptera) from the lower Eocene Cambay amber of India

Nadein, K.S. & Perkovsky, E.E. 2 July 2019. Small and common: the oldest tropical Chrysomelidae (Insecta: Coleoptera) from the lower Eocene Cambay amber of India. Alcheringa XXX, X–X. ISSN 0311-5518.

Three new genera and species of flea beetles (Chrysomelidae: Alticini) are described from the lowermost Eocene Cambay amber: Cambaltica paleoindica Nadein, gen. et sp. nov., Protorthaltica setosella Nadein, gen. et sp. nov., and Davidaltica cambayensis Nadein, gen. et sp. nov. These taxa share a zoogeographic affinity with extant Oriental and Afrotropical flea beetle faunas, with similarities to Afrotropical elements interpreted to be a result of Neogene migrations from Laurasia to Africa. The flea beetles within the Cambay amber are characterized by their small body size (1.2–1.9?mm), and the absence or rarity of larger flea beetles in the Cambay amber forest is assumed to be evidence for a progressive increase in the average body size of tropical flea beetles beginning in the early Eocene.

Konstantin S. Nadein [k.nadein@gmail.com], University of Kiel, Zoological Institute, Functional Morphology and Biomechanics, Am Botanischen Garten 1–9, Kiel, Germany; Evgeny E. Perkovsky [perkovsk@gmail.com], Schmalhausen Institute of Zoology, National Academy of Science of Ukraine, Bogdana Khmelnitskogo Str. 15, Kiev, Ukraine, Borissiak Paleontological Institute of the Russian Academy of Sciences, Profsoyuznaya Str. 123, Moscow, 117997, Russia.