Geography in the Baltic Republics on the 50th Anniversary of the Great October Revolution

A review of the status of geography in Lithuania, Latvia and Estonia during the Soviet period lists geographic research and educational institutions, the principal research projects, authors and publications in the various geographic disciplines, and discusses the role of the geographical societies of the three republics.     

谈我国南极研究的发展

本文简要介绍了我国南极科学考察事业的发展,并结合作者亲自参加第五次南极考察的体会和各主要国家对南极资源、能源和环境关注的动态提出了我国今后在南极研究中一些值得注意的问题.     

Characterization of pozzolanic lime mortars used as filling material in shaped grooves for restoring member connections in ancient monuments

This article presents a set of mechanical characteristics for a pozzolanic mortar consisting of hydrated lime and metakaolin, which is used as filler between metallic connectors and marble blocks during restoration activities of ancient monuments in Greece. Mechanical properties include the uniaxial and triaxial compressive strength, the indirect tensile strength, the bending strength, the elastic modulus and Poisson’s ratio, and a shear failure criterion. Cored cylindrical specimens are used for determining the uniaxial and triaxial compressive behavior and the indirect tensile strength of the mortar, thus ensuring the repeatability of the experimental results. The triaxial tests indicated a plastic behavior of the mortars under study, enabling them to perform well in conditions of high shear forces. Calcite and hydraulic components formed in the setting procedure contributed to the plasticity of the final mortar. The mechanical properties that were developed can be utilized to model material behavior and failure under conditions of confined or triaxial loading. The development of a shear failure criterion for a pozzolanic mortar is a substantial accomplishment that has not been previously reported in the international literature.     

"总体战"和现代日本"间接金融体制"的形成

日本近代银行虽然早在明治初期已经发端 ,但是明治时代的日本企业基本上是依靠股份和企业内部资金储备扩大再生产 ,即所谓“内部金融时代”。直至 2 0世纪 30年代中期 ,日本企业仍处于主要以发行股票和债券融资的“直接金融” ,和主要以向银行借贷融资的“间接金融”二者并存 ,但以前者为主要的状态。在发动侵华战争、构筑总体战体制以后 ,日本金融体制发生了急剧变化 ,主要表现为资本市场日趋衰微 ,以向银行借贷为主的间接金融体制开始形成。这种体制在战后仍然得以延续。由美国主导的日本战后民主化改革 ,并没有使战时形成的金融体制发生根本性变革。     

Cooked Bones? Method and Practice for Identifying Bones Treated at Low Temperature

Is it possible to determine low‐temperature cooking in archaeological bones? The indirect exposure of bones to fire at low temperature (≤ 100 °C), linked to cooking, produces macroscopic modifications on these bones. These modifications have not been clearly or systematically described previously. Instead, physicochemical changes at nanometric level are only now beginning to be understood. In this paper, our principle aim is to explore new methods and techniques that correlate macroscopic features such as smoothness or light transparency with physicochemical characterization results that could aid towards detecting cooked bones in the archaeological record. This study then selected 11 archaeological samples, both human and non‐human. Bones were considered to be thermally treated or not, on the basis of macroscopic criteria. Complementary characterization techniques were used to study morphology (scanning electron microscopy and small angle X‐ray scattering), structure (X‐ray diffraction and transmission electron microscopy), local composition (energy‐dispersive X‐ray spectroscopy) and texture (gas adsorption). Indeed, fractal dimension, particle size, crystalline percentage or specific surface area may well explain some of the macroscopically observed modifications on these samples. The possibility that such apparent modifications may also be due to diagenesis is also considered. From an archaeological point of view, the results are promising. Our characterization of human and non‐human bones demonstrates that physicochemical techniques are complementary and provide good criteria against which to distinguish boiled from un‐boiled archaeological samples. Copyright © 2013 John Wiley & Sons, Ltd.     

Designing Constitutions in Britain’s Mid-Nineteenth Century Empire – Indigenous Territorial Government in New Zealand and Retrieving Constitutional Histories

Focusing on the striking instance of colonial New Zealand, this article examines constitutional design for colonies of European settlement, arguing about such design in two key respects. First, this article examines the proposals of so-called ‘colonial reformers’ endeavouring to influence constitutional framing, including how their notions on ‘local self-government’ or ‘municipal government’ were reflected or not, while also illuminating their concepts of how to accommodate indigenous territorial governance and indirect administration of indigenous territories in the late 1840s and early 1850s. Second, recovering traces of these disputes and ways of thought from the archives, and how they were operationalised in grounded constitutional drafting or design, rather than resorting to analysing abstract canonical, high-level texts, such as those of Henry Maine and John Stuart Mill, is ultimately more rewarding for evaluating constitutional emergence and design. It reveals tensions within ‘colonial liberalism’, as characterised by Edward Gibbon Wakefield. How putative settler interests informed these metropolitan-Westminster constitutional enactments or not, assessed through cabinet-level discussions, in Colonial Office deliberations on settler agitation, illustrates missteps and failures as well as the particular ways in which diverse features of imperial constitutional design emerged. Examining these points is timely given Linda Colley’s focus on a ‘contagion of constitutions’ in the late eighteenth and early to mid-nineteenth centuries.     

莫高窟108窟内空气温湿度的变化过程及其对窟内水汽和热量来源的启示

为了对108窟内不同位置的温度、湿度和空气压力进行监测,设置了12个点的传感器。监测结果表明,窟内温度存在着显著的昼夜和长期的变化,其中上层空气的温度变化尤其明显,而下层空气的温度变化则相对较小。在夏天,窟内的上层空气温度高于下层空气的温度。窟内空气的绝对湿度受外部环境严重影响,存在近似昼夜的变化。在分布上,窟内空气湿度在上层和前部高,而在下层和后部则较小。窟内存在着净的水汽输入过程,但水汽不是从洞窟的入口进入的。同样,窟内的空气压力也存在着明显的昼夜变化过程,并受外部环境的影响而升高或下降,窟内东侧的空气压力大于西侧的空气压力。这些结果一致说明,在108窟的东侧上层存在着水汽和热量的来源。研究结果为下一步的盐害防治工作提供了思路,具有重要的科学意义和应用价值。     

The character of a global transport infrastructure: Jules Verne’s Around the World in Eighty Days

Jules Verne’s Le Tour du monde en quatre-vingts jours, serialized in 1872 and published in English in 1874 as Around the World in Eighty Days, displays through its hero the character, in both senses of the term, of the new global public transport system that had transformed long-distance travel in the nineteenth century. Verne’s fiction imagines the community defined by this system in three particular elements: A high-speed public transport network creates a community of people by extending their synchronic collective sense of ongoing separate simultaneous activity and, collaterally, unifies them historically as contemporaries defined by the current mode, form and speed of their transport network; it creates this community of people irrespective of the individual purposes for which they use the transport system; and individuals comprehend this networked community by projecting an omniscient-like perspective through which they imagine themselves and others as circulating bodies in it.     

Chemical evolution of metamorphic fluids in the Central Alps,Switzerland: insight from LA‐ICPMS analysis of fluid inclusions

The chemical evolution of fluids in Alpine fissure veins (open cavities with large free‐standing crystals) has been studied by combination of fluid inclusion petrography, microthermometry, LA‐ICPMS microanalysis, and thermodynamic modeling. The quartz vein systems cover a metamorphic cross section through the Central Alps (Switzerland), ranging from subgreenschist‐ to amphibolite‐facies conditions. Fluid compositions change from aqueous inclusions in subgreenschist‐ and greenschist‐facies rocks to aqueous–carbonic inclusions in amphibolite‐facies rocks. The fluid composition is constant for each vein, across several fluid inclusion generations that record the growth history of the quartz crystals. Chemical solute geothermometry, fluid inclusion isochores, and constraints from fluid–mineral equilibria modeling were used to reconstruct the pressure–temperature conditions of the Alpine fissure veins and to compare them with the metamorphic path of their host rocks. The data demonstrate that fluids in the Aar massif were trapped close to the metamorphic peak whereas the fluids in the Penninic nappes record early cooling, consistent with retrograde alteration. The good agreement between the fluid–mineral equilibria modeling and observed fluid compositions and host‐rock mineralogy suggests that the fluid inclusions were entrapped under rock‐buffered conditions. The molar Cl/Br ratios of the fluid inclusions are below the seawater value and would require unrealistically high degrees of evaporation and subsequent dilution if they were derived from seawater. The halogen data may thus be better explained by interaction between metamorphic fluids and organic matter or graphite in metasedimentary rocks. The volatile content (CO₂, sulfur) in the fluid inclusions increases systematically as function of the metamorphic grade, suggesting that the fluids have been produced by prograde devolatilization reactions. Only the fluids in the highest grade rocks were partly modified by retrograde fluid–rock interactions, and all major element compositions reflect equilibration with the local host rocks during the earliest stages of postmetamorphic uplift.     

Sources of obsidian artefacts,exchange networks and landscape use in Auca Mahuida (Neuquén,north-western Patagonia)

The results of the X-ray fluorescence (XRF) analysis of 59 obsidian samples from 11 archaeological sites in the Auca Mahuida region of north-western Neuquén, Argentina, are present. They indicate that several obsidian sources were used; however, the intensities of their exploitation were variable. Strong differences appear between the Colorado River basin, characterized by a low variability of obsidian groups from northern Neuquén; the Auca volcano, with a low variability of obsidian groups, but from local sources located north and southwards of the study area; and along Bajo del Añelo, which presents a high variability of obsidian groups from several local and non-local sources. The pattern recorded fits different mechanisms of access to the sources and the conveyance of obsidian across the landscape. Two distinct paths of direct access are suggested for obsidian availability along the Colorado River in northern Neuquén and for Portada Covunco obsidian in central Neuquén. Additionally, the presence of obsidian from sources in southern Neuquén province (Cerro Las Planicies-Lago Lolog), located about 350 km from the study area, is suggested. While not yet conclusive, this possibility parsimoniously integrates the available geochemical and spatial information, allowing the existence of either long-distance transport or indirect access by exchange or similar mechanisms to be proposed.