首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 0 毫秒
1.
2.
3.
Motor transport has not contributed to economic expansion in the Soviet Union to the extent seen in other industrialized countries. This paper investigates constraints in the USSR to the greater use of trucking during the 1980s: low road density and quality, insufficient trucks, a narrow variety of vehicles, inadequate repair facilities, and fuel shortages. These problems reflect in part the lack of incentives both for the trucking industry to satisfy demand for transport and for machine-builders to improve truck quality, limited investment in road construction, and the neglect of requirements for spare parts.  相似文献   

4.
5.
After having long existed as a technical discipline serving the needs of geographers, cartography in the Soviet Union has become increasingly a research discipline involving many common interests with geography. Collaboration between cartographers and geographers is becoming increasingly essential as more attention is being given to thematic cartography involving not only particular disciplines (geomorphology, economic geography, population geography) but what may be called an integrated “geographical” cartography. Much effort continues to be devoted in the Soviet Union to the compilation of regional atlases and to a wide range of thematic maps. Increasing attention is being given to the production of evaluative maps, assessing the potential use of the physical environment and natural resources. School maps represent a major part of Soviet map production. Tourist and hiking maps need to be seriously improved.  相似文献   

6.
7.
The author reviews the geographer's role in the study of the tayga environment from the viewpoint of resource development and the contribution geographers can make in the formulation of development plans for the tayga, which occupies one-third of the Soviet Union's total area. Published research and future study projects are discussed.  相似文献   

8.
9.
The influence in spatial epidemiology of the seminar work on autocorrelation by Cliff and Ord is discussed. Quantifying the evidence of spatial clustering was an important step in the development of modern statistical methods for analyzing spatial variations of diseases. Autocorrelation is nowadays mostly accounted for at a latent level within a hierarchical framework to small area disease mapping. The importance of accounting for autocorrelation in geographical correlation studies is also reviewed.  相似文献   

10.
11.
12.
Following is a brief account of the proceedings of the inter-agency conference on the geography of countries outside the Communist bloc held in Moscow in May 1961. The listing of papers provides a survey of current Soviet work in this field of regional geography.  相似文献   

13.
Geography education in the Soviet Union is found to lag behind advances in geography as a research discipline. Courses in both elementary and secondary schools and at the college and university level are overloaded with factual material at the expense of theoretical problems and general concepts. An essential requisite for improving the content of geography education is better training of geography teachers. Soviet geography teachers are now being trained mainly in the combined geography-biology faculties of teachers colleges. Combined training in more than one teaching discipline is essential because a teacher trained in geography alone would not have a full teaching load of 18 hours a week in most schools. However, the geography-biology combination does not appear to be optimal because the emphasis in biology is no longer on botany and zoology, as in the past, but on human physiology and genetics, with less relevance to geography. It is recommended that geography as a teaching discipline be combined with other subjects of instruction having greater relevance to geography teaching, possibly chemistry, physical education or foreign languages. Less emphasis on fact-loaded regional courses and more stress on systematic courses is recommended, together with training in mathematical techniques.  相似文献   

14.
Following are excerpts from a report read by Professor Salishchev on October 14, 1960, at a meeting of the Council of the Geography Faculty of Moscow University. The omitted part of Professor Salishchev's report is substantially the same as the report of the National Committee of Soviet Geographers, printed in Soviet Geography, April 1961, pp. 40–46. Professor Salishchev's report on the work of the Commission of National Atlases, of which he is chairman, is translated in full.  相似文献   

15.
This survey of the program of activities of the Moscow Branch includes a list of topics suggested for discussion at meetings of geographers and a detailed program of activities for the dissemination of geographical knowledge through lectures, publications, exhibits, excursions, radio-television, photographs and films, and library services.  相似文献   

16.
17.
18.
1966年3月17~20日,毛泽东在杭州主持召开中央政治局常委扩大会议(以下简称三月杭州会议)。对这次会议,《周恩来传》下卷作了这样的记述:三月十七日至二十日,毛泽东在杭州召开中央政治局常委扩大会议,研究进一步开展学术界、教育界的政治批判。周恩来从天津回北京后,十八日赶到杭州出席会议。刘少奇、邓小平、彭真等也到会,杭州会议期间,毛泽东还因上海沪剧《芦荡火种》不能在北京演出,当面批评彭真是搞‘独立王国’。毛  相似文献   

19.
20.
Geographical and Temporal Weighted Regression (GTWR)   总被引:3,自引:0,他引:3       下载免费PDF全文
Both space and time are fundamental in human activities as well as in various physical processes. Spatiotemporal analysis and modeling has long been a major concern of geographical information science (GIScience), environmental science, hydrology, epidemiology, and other research areas. Although the importance of incorporating the temporal dimension into spatial analysis and modeling has been well recognized, challenges still exist given the complexity of spatiotemporal models. Of particular interest in this article is the spatiotemporal modeling of local nonstationary processes. Specifically, an extension of geographically weighted regression (GWR), geographical and temporal weighted regression (GTWR), is developed in order to account for local effects in both space and time. An efficient model calibration approach is proposed for this statistical technique. Using a 19‐year set of house price data in London from 1980 to 1998, empirical results from the application of GTWR to hedonic house price modeling demonstrate the effectiveness of the proposed method and its superiority to the traditional GWR approach, highlighting the importance of temporally explicit spatial modeling.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号