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91.
James A. Tyner 《The Professional geographer》1998,50(3):331-344
International labor migration is produced and patterned through the activities of government and private institutions, such as labor recruiters and government officials. Recently, labor recruitment agencies have utilized the World Wide Web as a means of facilitating the procurement of foreign employment contracts. The purpose of this research is to examine the institutional usage of the Web as a means to facilitate the global flow of labor. Based on a qualitative assessment of 27 recruitment-related Web sites, I suggest that Web-based recruitment reinforces global patterns of gendered, racial, and occupational segregation. Moreover, Web-based recruitment offers the potential for revolutionizing patterns and processes of international labor migration. 相似文献
92.
柴达木盆地东缘晚更新世气候变化的(古)土壤发生记录 总被引:4,自引:1,他引:3
柴达木盆地东缘典型剖面(古)土壤及其黄土线质的宏观特征和理化分析表明,本区晚更新世以来气候曾有几次较大的波动,反映了全球冰量影响的气候波动以及东亚季风气候的强弱变化特征。揭示出气候变化过程中温度和降水并不同步,温度主要受地球轨道变化引起的太阳辐射的影响;降水则主要取决于冬、夏季风的浊弱对比关系,夏季风盛行时,降水丰沛。间冰段古土壤Sm的土壤发生特征和强度,揭示了除低温引起的蒸发减少外,降水丰沛也是 相似文献
93.
Two deep-sea cores in the northwest Pacific have been analysed for sedimentology, mineralogy and environmental magnetism.
The results show that after eliminating the interference from volcanism, several proxies such as quartz content, mass susceptibility
and anhysteretic magnetic remanence can be used to indicate the eolian deposit from East Asia, and provide information on
paleo-atmospheric circulation. A comparison of eolian record in Cure RC10-175 with its oxygen isotopic curve has revealed
that the peaks of eolian accumulation occurred at the climatic “optimum” of the Holocene and the last interglaciation, showing
the fairly complex nonlinear relationship between continental/pelagic eolian records and the global glacial cycles as well
as within the climatic and environmental system.
Project supported by the National Natural Science Foundation of China (Grant No. 9291104) 相似文献
94.
The paper examines the prospects for resource-based development in the Russian Far East. It adopts a critical perspective on the potential for resource-based development by examining problems with Far East resource industries, specifically by looking at the experience of the other resource economies more generally. In particular, it highlights the new geo-economic context for resource development in the Far East of Russia as the world economy approaches the much touted, and now questioned, ‘Pacific Century’. 相似文献
95.
D. P. Naidin I. G. Sasonova Z. N. Pojarkova M. R. Djalilov G. N. Papulov Yu. Senkovsky V. N. Benjamovsky L. F. Kopaevich 《Cretaceous Research》1980,1(4):375-387
This paper is a brief explanation of the diagrams of the Cretaceous transgressions and regressions on the Russian Platform, in the Crimea (Figures 1–3) and some regions of central Asia—the western flanks of the Tien Shan mountains, the Fergana basin, the Zeravshan-Gissar and Alaj mountains, and the Northern Pamirs (Figures 5–7).Internationally recognized stages are employed. They are interpreted by Sasonova (1967) for the Lower Cretaceous (K1) of the Russian Platform, by Naidin (1977) for the Upper Cretaceous (K2) of the Platform and the Crimea, by Djalilov (1971) and Pojarkova (1976) for the Upper Cretaceous of central Asia. General data on the stratigraphy of the Cretaceous of central Asia may be found in Anon 1977. 相似文献
96.
97.
The journal of Global Geology (English Edition ) is sponsored by the International Cen- ter of Geoscience Research and Education in Northeast Asia, Jilin University of China. The former name of the journal was the Journal of International GeoscientiJic Research in Northeast Asia which was started in 1998 and served the scientists and teachers in geosciences in the world, particularly for the scientists from the six countries of the NE Asia including China, 相似文献
98.
Journal of Geographical Sciences - Under the impacts of climate change and human activities, great uncertainties still exist in the response of climate extremes, especially in Central Asia (CA). In... 相似文献
99.
Journal of Geographical Sciences - With the implementation of the “Going out” strategy and the Belt and Road Initiative, China’s investments have become increasingly influential... 相似文献
100.
利用NCEP(National Centers for Environmental Prediction)/NCAR(National Center for Atmospheric Research)再分析资料, 首先讨论了南亚高压在中南半岛上空建立日期的定义标准及其建立过程。结果表明, 南亚高压在中南半岛上空建立的日期平均为4月29日;合成的南亚高压建立前后的大气环流和非绝热加热的演变揭示出南亚高压建立始于菲律宾东南洋面上的反气旋环流分裂后, 西中心在中南半岛上空建立加强形成南亚高压, 该建立过程与中南半岛非绝热加热作用密切相关。在此基础上结合NOAA(National Oceanic and Atmospheric Administration)的对外长波辐射(OLR)资料分析了南亚高压在中南半岛上空的建立与亚洲夏季风建立的关系。结果表明, 中南半岛夏季风建立和南亚高压在半岛上空建立几乎同时发生;南亚高压在中南半岛建立几天后, 东孟加拉湾夏季风开始建立;南亚高压建立大约20天后, 南海和菲律宾夏季风开始建立;大约一个月后, 西孟加拉湾、印度半岛和东阿拉伯海的夏季风建立。南亚高压在中南半岛上空的建立可视为亚洲夏季风建立的开始, 其对亚洲夏季风爆发有很好的指示意义。 相似文献