朝鲜古地图所见之清代中朝边界诸问题初探

朝鲜古地图中保存了清代中朝边界的诸多重要信息。通过对多种朝鲜古地图的解读,考察了其绘制方法与特点,重点分析了穆克登碑、图们江源、"间岛"及鸭绿江下游岛屿等边界地区在地图上的表现方式与变化轨迹。可以看出,朝鲜古地图在绘制方法受到了中国传统舆图的深刻影响,在内容上反映了绘制者对本国历史、地理状况的认知,也体现了其领土观念与"北拓传统"。     

The Curious History of the Minerva Reefs: Tracing the Origin of Tongan and Fijian Claims Over the Minerva Reefs

ABSTRACT

This article explores the historical events relating to the competing claims over the Minerva Reefs by Tonga and Fiji. Tonga’s sovereign claim over the Minerva Reefs was prompted by a private group’s laying claim to a 'Republic of Minerva' in 1972. At that time, Fiji, as well as the South Pacific Forum, recognized Tonga as the only possible owner of the Minerva Reefs, but did not explicitly recognize Tonga's claimed sovereign title. Such a position reflected the legal uncertainty in relation to Tonga's claim in 1972. The establishment of the 200?nm Exclusive Economic Zone legal regime in the late 1970s gave rise to Fiji's claim to the Minerva Reefs, whereas subsequent developments in international law have significantly reduced the legal uncertainty in relation to Tonga's claim.     

A new Permian–Triassic boundary brachiopod fauna from the Xinmin section,southwestern Guizhou,south China and its extinction patterns

Wu, H.T., He, W.H., Shi, G.R., Zhang, K.X., Yang, T.L., Zhang, Y., Xiao, Y.F., Chen, B. & Wu, S.B., XX.XXXX.2018. A new Permian–Triassic boundary brachiopod fauna from the Xinmin section, southwestern Guizhou, south China and its extinction patterns. Alcheringa 00, 000–000. ISSN 0311-5518.

A new brachiopod fauna comprising 31 species in 19 genera is described from a Permian–Triassic boundary section in Xinmin, Guizhou Province, Southwestern China. The brachiopods were collected from the Changhsingian (latest Permian) Changxing (=Changhsing) and Dalong (=Talung) formations and the lower Griesbachian (earliest Triassic) Daye Formation, which were deposited, respectively, in a shallow-water carbonate platform, upper offshore and carbonate platform settings. Among the brachiopods described and illustrated, a new species Juxathyris subcircularis is proposed. In addition, some species Araxathyris previously reported in south China have been discussed in detail and revised, with new morphological information. In particular, internal structures are provided for the first time for Orthothetina and Araxathyris species reported from south China. In addition, important clarifications are also provided on the morphology and diagnoses for Haydenoides, Martinia, Crurithyris and Transcaucasathyris, as well as for Paryphella transversa.

Huiting Wu School of Earth Sciences, China University of Geosciences, Wuhan 430074, PR China and School of Life and Environmental Sciences, Deakin University, Melbourne Burwood Campus, 221 Burwood Highway, Burwood, Victoria 3125, Australia; Weihong He [whzhang@cug.edu.cn] State Key Laboratory of Biogeology and Environmental Geology, School of Earth Sciences, China University of Geosciences, Wuhan 430074, PR China; G. R. Shi [guang.shi@deakin.edu.au] School of Life and Environmental Sciences, Deakin University, Melbourne Burwood Campus, 221 Burwood Highway, Burwood, Victoria 3125, Australia; Kexin Zhang State Key Laboratory of Biogeology and Environmental Geology, School of Earth Sciences, China University of Geosciences, Wuhan 430074, PR China; Tinglu Yang Faculty of Geosciences, East China University of Technology, Nanchang 330013, PR China; Yang Zhang School of Earth Sciences and Resource, China University of Geosciences, Beijing 100083, PR China; Yifan Xiao and Bing Chen School of Earth Sciences, China University of Geosciences, Wuhan 430074, PR China; Shunbao Wu, School of Earth Sciences, China University of Geosciences, Wuhan 430074, PR China.     

New species of organic-walled dinoflagellate cysts from the Maastrichtian–Danian boundary interval at Ouled Haddou,northern Morocco

Slimani, H., Louwye, S. & Toufiq, A., September 2012. New species of organic-walled dinoflagellate cysts from the Maastrichtian–Danian boundary interval at Ouled Haddou, northern Morocco. Alcheringa 36, 341–358. ISSN 0311-5518.

Seven new dinoflagellate cyst species and subspecies, previously figured under open nomenclature, from Maastrichtian and Danian deposits of Ouled Haddou (eastern external Rif Chain) in northern Morocco are formally described, and their stratigraphic ranges are clarified. Conosphaeridium lifum sp. nov. and Kenleyia chabaka sp. nov. have fibrous and reticulate wall surfaces, respectively. Oligosphaeridium saghirum sp. nov. is a small cyst with funnel-shaped distal process extremities. Spiniferella cornuta subsp. kacira subsp. nov. and Fibrocysta brevispinosa sp. nov. are distinguishable by their very short processes. Riculacysta chaouka sp. nov. is characterized by its perforate spinose ectophragm. Andalusiella bacita sp. nov. is a small and spindle-shaped cyst with only a single antapical horn.     

Structure of grain boundaries in wet,synthetic polycrystalline,statically recrystallizing halite – evidence from cryo‐SEM observations

It is well known from nature and experiments that the presence of brine strongly affects the microstructural evolution and the mechanical and transport properties of halite. Existing interpretations of the grain boundary structure in deformed, wet, salt samples annealed statically at room temperature are based on indirect evidence from reflected light microscopy and conventional scanning electron microscopy. This paper presents direct observations of fluid‐filled grain boundaries using the cryogenic‐scanning electron microscope (cryo‐SEM) in which the grain boundary fluids were frozen before breaking the samples. The rapid cooling transforms the brine into two phases, i.e. ice and hydrohalite, which are easily recognized from characteristic segregation patterns. We studied samples of wet, synthetic, polycrystalline halite annealed under static conditions at room temperature. In coarse‐grained samples, fine‐scale segregation patterns were observed at the boundaries of the primary recrystallizing grains. These points indicate the existence of fluid films with a thickness in the range of 30 nm, but the finer scale structure of the fluid remains unknown. In fine‐grained samples, the distribution and reorganization of fluids with annealing time is recorded by the combination of contact healing and successive accumulation of fluids in triple junction tubes. The contact healing is attributed to the small initial grain size, such that the fluid film necks down by accumulating the fluids into previously existing triple junctions via neck growth. Electron backscatter diffraction measurements of both primary and secondary recrystallized grains indicate that they are euhedral, i.e. the grain growth morphology is controlled by the anisotropy of the grain boundary energy of the growing grain, which results in planar growth faces.     

Cultures of Incomprehension?: The Legacy of the Two Cultures Debate at the End of the Twentieth Century

This paper considers the impact of Snow's Two Culture's thesis on debates about the place of science and scientists in society in the latter part of the twentieth century. Debates concerned with the public understanding of science and the ‘science wars’, both of which relied to some extent on the dividing of society into ‘two cultures’, are contextualised within longer efforts by scientists to popularise definitions of science and society and their relationship with other epistemic communities. This paper argues that we should think about all these episodes as part of ongoing rhetorical boundary work, reflective of strains and stressors on science as an institution. The two cultures debate has provided one powerful rhetorical device, amongst many, for ongoing boundary work to establish or question science as the dominant form of knowledge in society and delineate who is allowed to speak for it, and wield its power.     

赋役制度与政区边界——基于明清湘鄂西地区的考察

在湘鄂西地区,从明初至清雍正年间,土司、卫所等特殊形式的政区与经制州县政区在地理空间上都是彼此毗邻乃至交错的。不同类型的政区意味着不同的赋役制度与管理方式,在土司、卫所与州县势力彼此消长的背景下,更导致了种种土地纠纷与赋役规避问题。清雍正间,通过改卫归流与改土归流,三者之间的土地与赋役纠纷随着卫所、土司的取消与州县政区主体地位的确立而逐渐消弭。