全文获取类型
收费全文 | 1455篇 |
免费 | 303篇 |
出版年
2023年 | 2篇 |
2021年 | 15篇 |
2020年 | 13篇 |
2019年 | 105篇 |
2018年 | 74篇 |
2017年 | 75篇 |
2016年 | 128篇 |
2015年 | 89篇 |
2014年 | 88篇 |
2013年 | 310篇 |
2012年 | 96篇 |
2011年 | 101篇 |
2010年 | 75篇 |
2009年 | 57篇 |
2008年 | 73篇 |
2007年 | 69篇 |
2006年 | 46篇 |
2005年 | 20篇 |
2004年 | 36篇 |
2003年 | 31篇 |
2002年 | 26篇 |
2001年 | 24篇 |
2000年 | 34篇 |
1999年 | 7篇 |
1998年 | 16篇 |
1997年 | 19篇 |
1996年 | 15篇 |
1995年 | 16篇 |
1994年 | 15篇 |
1993年 | 4篇 |
1992年 | 5篇 |
1991年 | 4篇 |
1989年 | 4篇 |
1988年 | 4篇 |
1987年 | 6篇 |
1986年 | 5篇 |
1985年 | 5篇 |
1983年 | 4篇 |
1982年 | 5篇 |
1980年 | 3篇 |
1979年 | 5篇 |
1977年 | 7篇 |
1976年 | 3篇 |
1974年 | 5篇 |
1970年 | 1篇 |
1969年 | 2篇 |
1968年 | 1篇 |
1964年 | 1篇 |
1958年 | 2篇 |
1951年 | 1篇 |
排序方式: 共有1758条查询结果,搜索用时 15 毫秒
1.
2.
Anna Lora‐Wainwright 《Anthropology today》2012,28(4):8-13
China has officially become a predominantly urban country, with over 50% of the population now registered as urban residents. Its urbanization process has been described as the most managed in human history. The Chinese government manages the building of new cities, regulates the housing of displaced people and controls squatters. As an historically poorer area, the west of China has been the target of ongoing efforts at infrastructural development. Describing urbanization as managed however masks the conflicts and contradictions involved in a process which is far from smooth. Although villagers are usually seen to be largely the powerless victims of these initiatives, it is clear that many try to take advantage of the situation, while others are unable to do so. Based on recent fieldwork and eight years of visits to one village undergoing urbanization, this article looks at the complex dynamics involved and at the moral battleground which they lay bare. 相似文献
3.
4.
Hans Poser 《Berichte zur Wissenschaftsgeschichte》1989,12(3):145-157
Analogy as a scientific method has been criticized during the last decades; only for heuristic purposes it has been accepted. On the other side especially proportional analogies have a long tradition in European thought since Plato and Aristotle, for, as Aristotle puts it, analogies allow a connection between different and unbridgeable ontological areas. As examples for such connections the analogia entis of Thomas of Aquino and the Kantian Analogies of Experience are discussed. They give us hints for a new view of analogies, which during the Middle Ages were not only of heuristic value, but were accepted as a proof: Analogies do not only produce hypotheses, moreover, they build up new views of the world, they are the background of paradigms, for they create structures by introducing similarities and proportions. 相似文献
5.
6.
This article addresses the problem of specification uncertainty in modeling spatial economic theories in stochastic form. It is ascertained that the traditional approach to spatial econometric modeling does not adequately deal with the type and extent of specification uncertainty commonly encountered in spatial economic analyses. Two alternative spatial econometric modeling procedures proposed in the literature are reviewed and shown to be suitable for analyzing systematically two sources of specification uncertainty, viz., the level of aggregation and the spatio-temporal dynamic structure in multiregional econometric models. The usefulness of one of these specification procedures is illustrated by the construction of a simple multiregional model for The Netherlands. 相似文献
7.
8.
9.
ABSTRACT Increasing strains on self-sufficiency within the block of East European command economies resulted in the dramatic decision to change over to an economic system largely based on market forces. The painfulness of the ensuing transformation process will be mitigated somewhat by supportive economic policies of the West, including the European Community which is itself aiming at complete economic integration by the end of 1992. The consequences for the developing countries of these far-reaching policy changes in East and West are likely to be negative, at least in the immediate future. This is true for the volume of development assistance given by East and West, as well as for the export prospects of developing countries. Favourable effects might at best be expected in the longer run. 相似文献
10.