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A study of the movement of people within Northeast Asia at the end of the Pleistocene is critical for understanding how and when some of the first human populations entered North America. Chemical source studies of obsidian may provide the evidence necessary to document people's migrations between these regions. Sixty two obsidian artifacts from the late Pleistocene and Holocene Ushki Lake sites in Kamchatka Peninsula were analyzed by instrumental neutron activation analysis (INAA). Data generated demonstrate that multiple obsidian sources throughout Kamchatka were exploited by the inhabitants of Ushki Lake, and allow us to document long-distance population movements during the late Pleistocene and Holocene. It is reasonable to expect that obsidian from Kamchatka might have been transported to Alaska. This is true for the Chukotka region of Northeastern Siberia; obsidian from Chukotka has been found in late Holocene archaeological sites in Alaska. Ultimately, an expanded study that includes all areas of Northeast Asia and Alaska may provide the data necessary to document the earliest movements of people in these regions.  相似文献   
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A set of 121 radiocarbon and OSL dates has been compiled from the Upper Dnieper River and tributary valleys, Western European Russia. Each date was attributed according to geomorphic/sedimentological events and classes of fluvial activity. Summed probability density functions for each class were used to establish phases of increasing and reducing fluvial activity. The oldest detected reduction of fluvial activity was probably due to glacial damming at LGM. Within the Holocene three palaeohydrological epochs of millennial-scale were found: (1) high activity at 12,000–8,000 cal BP marked by large river palaeochannels; (2) low activity at 8,000–3,000 cal BP marked by formation of zonal-type soils on -floodplains; short episodes of high floods occurred between 6,500—4,400 cal BP; (3) contrasting hydrological oscillations since 3,000 cal BP with periods of high floods between 3,000–2,300 (2,000) and 900–100 cal BP separated by long interval of low floods 2,300 (2,000)-900 cal BP when floodplains were not inundated — zonal-type soils were developing and permanent settlements existed on floodplains. In the last millennium, four centennial-scale intervals were found: high flooding intervals are mid-11–mid-15th century and mid-17–mid-20th century. Intervals of flood activity similar to the present-day were: mid-15–mid-17th century and since mid-19th century till present. In the context of palaeohydrological changes, discussed are selected palaeogeographic issues such as: position of the glacial boundary at LGM, role of changing amounts of river runoff in the Black Sea level changes, floodplain occupation by Early Medieval population.  相似文献   
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This article uses new evidence to investigate Yugoslav foreign policy through the prism of inter-party relations rather than traditional high diplomacy. It shows the Yugoslav Communists hoped comradeship with Britain's Labour Party would influence Western policies to counter the Soviet threat. Initial successes, especially a deterrent statement by the British Cabinet in February 1951, inspired great optimism. The Labour left was also delighted that Communism could be reformed and Cold War tensions lessened. However, ideological differences crystallised over the Djilas affair and Yugoslavia's choice for Non-Alignment. Only mutual opposition to the USSR during the crises of 1956 ensured their continuing friendship.  相似文献   
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The question of a separate Montenegrin language has been extensively debated in the last decades. Its roots, however, lie deeper, with the first demands for it appearing in the late 1960s. By analysing the contemporary sources, this paper seeks to establish how and by whom these demands were voiced, the argumentation of both sides of the debate and how were they received by the League of Communists of Yugoslavia. The debate was started by a group of Montenegrin intellectuals in a climate favourable to the “political periphery” of socialist Yugoslavia and the smaller nationalisms. The group, supported by some of the high executives of the Communist Party, claimed that the rights of the Montenegrin nation were being negated by the government's refusal to allow the local language to be codified to a literary standard. The discussion sheds light on the process of nation-building in socialist-era Montenegro, revealing its actors and dynamics.  相似文献   
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Abstract

The chance assembling of a number of different impressions of Andrew Dury's Map of the present Seat of War between the Russians, Poles, and Turks (1769) in the British Library led the authors to examine the map's carto‐bibliographical history. Nine states of the map, two of which were sometimes sold with printed paste‐ons, have been identified to date. The two earliest states of the map are now in the State Historical Museum, Moscow. Although both are best described as proof, or pre‐publication, impressions, each bears evidence of intensive use at the highest levels of the Russian army command. Indeed, the circumstances leading to the creation of the map by Andrew Dury and Peter Bell and to a succession of different versions over the three decades or so of intermittent Russian‐Turkish hostilities highlight the interplay of international politics, individual initiative and commercial factors in late eighteenth‐century map production in London.  相似文献   
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