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1.
TheauthorisanAcademicianofCAS.HonoraryPresidentofChina'sSocietyontheTbetanPlaleau.ThefiftyyearsforscientificsurveyontheTibetanPlateauisthataccompaniedwiththefoundationandgroWthofthePeople'sRepublicofChina,andthatrepresentedscientificproaresses,nationalunityandeconomicdeveIopmentin1ibetanareas.ItisthemostpraiseworthyscientificpracticeinChina'sscienceresearchduringthefiftyyears.Manyofus,fromyouthtooldage,havebeenworkingforitfornearlyfiftyyears.WenotonIycontributedOuryouthstagebutalsoallt…  相似文献   

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WHAT THE BLIND CHILDREN SAYIn the training center, I sawtrainees chasing each other. Pauland I didn't make much noise, butthese children instantly knew wewere approaching."Paul!" they said, and gathered around him.We joined them in playinggames.During intervals, I talked to aboy named Qamba, who is 11years old."I was recruited by the Training Center in 1999 when I wasnine. In my hometown, I learnedalmost nothing. Many cursed us,saying that we blind peopleshould die rather than li…  相似文献   

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River basins are an extremely important source of freshwater for Africa and the impact of climate change on these communities constitutes an important question worth studying. Among these basins, the Niger River Basin is an ideal candidate for meso-level theory testing of climate change-induced political violence because of its importance as one of the largest sources of freshwater in Africa, its high vulnerability to climate change, and its location in a politically unstable region. This paper utilizes the benefits of GIS to test whether effects of water insecurity on the various incidences of political violence are conditional on economic, geographic, and social means of connectivity. Our analysis uses the density of secondary road networks, the geographic distance to the Niger River, and a shared co-ethnicity with one's head-of-state to evaluate the impact of hydrological stress and its subsequent risk for political violence across nine West African countries from 1997 to 2012. Using climatological data and an econometric de-trending method, we measure the separate, substantive impact that individualized changes in precipitation trend and precipitation variability have for the incidence of ACLED's political violence events, conditional on local economic, geographic, and social factors. Our results reveal a complicated web of circumstances under which certain forms of political violence are more/less likely to be observed. The implications of this analysis serve as a call for a closer inspection of the micro-channels by which climate stress impacts heterogeneous communities in the developing world.  相似文献   

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Henricus Martellus's four world maps of c.1489 show a non‐existent Asian peninsula east of the Aurea Chersonesus (the Malay peninsula). For some decades a group of scholars in Latin America has been claiming that this so‐called ‘Dragon's Tail’ peninsula is really a pre‐Columbian map of South America. In this paper, the cartographical and place‐name evidence is examined, showing that the identification has not been proved, and that perceived similarities between the river and coastal outlines on this ‘Dragon's Tail’ peninsula and those of South America are fortuitous. Ptolemy's depiction of an enclosed Indian Ocean was invalidated when Bartolomeu Dias rounded the Cape of Good Hope. Consequently, a year or two later, Martellus adapted the east Asian section of Ptolemy's world map, providing China with an east coast and turning the southward extension of Asia into a peninsula. The non‐Ptolemaic place‐names on these maps were derived from Marco Polo's writings.  相似文献   

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Late Pleistocene Siberia was characterized by a unique mammoth-steppe biome. Two prevailing hypotheses exist to explain modern human dispersals in the Siberian mammoth-steppe. Upper Paleolithic human populations were either maintained continuously throughout the late Pleistocene or the peopling of this region resulted from multiple dispersal events. Past attempts at explaining the colonization process have resulted in culture-historical interpretations. This article uses lithic technological data from middle and late Upper Paleolithic sites in the Enisei River valley of south-central Siberia to explain human dispersals from a behavioral perspective. Technological provisioning and land-use strategies are reconstructed to help explain dispersal processes. Results of the study demonstrate that hunter–gatherers were using different adaptive strategies before and after the Last Glacial Maximum, indicating that multiple dispersal events shaped the peopling of Siberia.  相似文献   

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ABSTRACT

This paper will examine settlement location during the Iron Age in the northeast part of the Netherlands, an area shaped by Pleistocene geology. In recent years, a number of Late Iron Age/Early Roman settlements situated on the low lying slopes of sand ridges and nearby stream ridges revealed traces of an earlier Iron Age occupation. Palynological data revealed that this part of the landscape was used by humans before it was transformed into an area of settlement. An analysis of excavation data from two key sites at Denekamp-De Borchert and Groningen-Helpermaar, as well as other known sites, lead to the conclusion that the transformation of ‘peripheral landscapes’ into permanent settlement locations was preceded by a phase of arable cultivation which left no trace of permanent habitation. It is also suggested that the impact of human behaviour on the natural landscape in the Early and Middle Iron Age was much bigger than previously anticipated. When excavating this type of settlement areas dating to the Late Iron Age, archaeologists must be aware that only of a small group of archaeological features exist. The proposed model for the choice of settlement location may be more widespread, because of similarities in landscape between the study area presented here and other landscapes in Northwest-Europe (e.g. parts of Germany and Denmark).  相似文献   

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THIS ARTICLE PRESENTS a new contextual model to study the social implications of consumption strategies in an archaeological context. The model can be used to establish a baseline of consumption, against which other consumption strategies can be measured. By analysing and comparing finds from two different urban locations in medieval Denmark, we examine how these urban environments facilitated different consumption strategies, and how these strategies changed over time. We also discuss how the archaeological record can contribute to analysing the negotiation of social identities through consumption patterns and consumer choices as reflected in artefact assemblages. The analysis demonstrates that consumption strategies depend on and are related to the characteristics and social complexity of the town in terms of demographics and networks.  相似文献   

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<正>A 8.1-magnitude earthquake shook Nepal on Apr.25 in 2015.The quake also strongly affected parts of Tibet.The township of Dram in Nyalam county of Shigatse is one of the most devastated areas.Given the local complexity of geological structure and the harm of aftershocks,after the earthquake,the government of Tibet Autonomous Region decided that the reconstruction of the township was based on transferring all the masses in Dram and relocating them in Samdrutse district  相似文献   

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In 1939–40, the fierce Winter War was waged between the Soviet Union and Finland. This article analyses Stalin's two main decisions, to attack and to make peace, and the intelligence behind those decisions. Already at the outbreak, it was obvious that the attack was based on a serious misjudgement. The Soviets did not foresee that the action would become a real war, very different from the occupation of eastern Poland in September. It will be shown that this was due more to Stalin's miscalculation of consequences than to any major failure of intelligence collection. As to why Stalin made peace at the very moment when the Red Army finally began winning, and with the Finnish government he had declared non-existent, this seems to be connected with defective assessment of intelligence from London and Paris. Even the Cambridge Five were discarded. Both real and perceived threats of Allied intervention weighed heavily in Stalin's decisions, in particular the southern threat against Baku and the Caucasus. The analysis will contribute to scholarly discussion on Stalin's foreign policy and the role of intelligence in Soviet decision-making. New evidence is mainly provided by intelligence and security documents released by the Central Archives of the Russian Federal Security Service.  相似文献   

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River management in the province of Holland in the eighteenth century was co‐ordinated by a Hydraulic Department which worked closely with local, regional and other provincial authorities to maintain river beds and channels. To perform its function efficiently, all the Hydraulic Department's main river maps followed general precepts laid down as early as 1725 by the surveyor Nicolaas Cruquius (1678–1754). The basic principle was to create clear maps with uniform scale and design which contained only the topographical information relevant to the work of the department. Experiments with depth contours were made, and profiles and diagrams were included in order to portray as accurately as possible the invisible natural processes which influenced the river landscape. The cartographical model thus established was followed consistently throughout the eighteenth century.  相似文献   

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This article examines the idea of the neoliberal city. Using the reform of the Detroit River international border crossing between Canada and the United States as a case study, the article explores the extent to which a small- to medium-sized Canadian municipality is capable of developing policy positions that challenge neoliberalism. The conclusion is mixed. Windsor City Council is not advancing policies that present a fundamental challenge to the economic status quo. It does not, for example, challenge the rationale that a new border crossing will facilitate freer trade. Nevertheless, neither are the municipal council's positions completely in line with arguments that municipal governments have no room to advance positions in opposition to major economic interests. The council is advancing policy positions opposed by major local, regional and international business interests. There is, therefore, some evidence of the possibility of local agency within the geography of neoliberalism.  相似文献   

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Pre-Hispanic mounds, known as “cerritos,” “cerritos de indios,” or “aterros” across southeastern South America, are one of the most conspicuous and well-studied cultural manifestations in lowlands archaeology. Nevertheless, in the Upper Delta of the Paraná River, mounds are rarely studied, and even their anthropic origin is under debate. This could be related to the fact that anthropogenic mounds are located on a floodplain where other “mound-like” natural geoforms (generated by fluvial processes) are also present. In addition to this, the natural geoforms also contain evidence of Holocene human occupation (sherds, bones, charcoal, humans burials, etc.), which can lead to interpretive errors of their origin and formation. Thus, this project set out to determine the genesis and evolution of these mounds and also to identify the cultural occupation and transformation of natural landforms found in the area. In this article, natural and anthropogenic systems and processes were identified and characterized through the application of proxy record analysis (i.e., sediment composition, stratigraphy, micromorphology, silica bodies and chronological analysis) at the Los Tres Cerros archaeological locality in the Upper Delta of the Paraná River of Victoria County, Entre Ríos Province, Argentina. This analysis allowed for the recognition of natural anthropogenic interfaces, such as the “pre-mound” occupation as well as evidence of cultural activities such as mound construction, between 1,000 and 500 14C years bp. These findings were integrated into current research on the variability of mound construction during the Late Holocene in the lowlands of South America.  相似文献   

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The data collected by the New Survey of London Life and Labour between 1928 and 1932 is one of the most significant resources of detailed household information for the interwar period, with data extracted for almost 30,000 households, providing detailed information including birthplaces, hours of work, and wages. This article assesses the process of the original data collection, highlighting issues that mean users of the extracted data must proceed with a measure of caution. In particular, it demonstrates that one investigator employed by the survey, who provided information for around a fifth of households, appears to have regularly submitted generic and estimated information that problematizes the dataset.  相似文献   

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Dainzin Leshie is 20 years old now. Three years ago, he became a monk. But then, three months ago, when he headed out of the Nyainqentanglha Mountains and became a businessman of the Daglung Monastery Store, he took off his red kasaya (monk's robe).  相似文献   

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