全文获取类型
收费全文 | 247篇 |
免费 | 8篇 |
出版年
2024年 | 1篇 |
2023年 | 5篇 |
2021年 | 1篇 |
2020年 | 8篇 |
2019年 | 6篇 |
2018年 | 5篇 |
2017年 | 9篇 |
2016年 | 17篇 |
2015年 | 6篇 |
2014年 | 14篇 |
2013年 | 53篇 |
2012年 | 15篇 |
2011年 | 10篇 |
2010年 | 8篇 |
2009年 | 13篇 |
2008年 | 13篇 |
2007年 | 9篇 |
2006年 | 6篇 |
2005年 | 7篇 |
2004年 | 1篇 |
2003年 | 2篇 |
2002年 | 5篇 |
2001年 | 4篇 |
2000年 | 2篇 |
1999年 | 3篇 |
1997年 | 2篇 |
1996年 | 4篇 |
1994年 | 1篇 |
1993年 | 3篇 |
1990年 | 1篇 |
1987年 | 1篇 |
1986年 | 6篇 |
1984年 | 3篇 |
1983年 | 1篇 |
1981年 | 1篇 |
1978年 | 1篇 |
1977年 | 4篇 |
1975年 | 1篇 |
1974年 | 1篇 |
1972年 | 1篇 |
1954年 | 1篇 |
排序方式: 共有255条查询结果,搜索用时 15 毫秒
1.
2.
A longitudinal approach to migration behavior makes it possible to identify a sufficient condition for positive associations between rates of in-migration and rates of out-migration in the same regions. The longitudinal approach centers on the intervals of time that individuals spend in a region, and these intervals can be analyzed in terms of probability distributions or the equivalent hazard functions or survivor functions. Differences in the distributions of these intervals between subpopulations whose residence in a region begins with in-migration and subpopulations whose residence begins with other events are sufficient for temporal variations in rates of in-migration to produce variations in out-migration rates in subsequent periods of time. Tests for such differences are performed using data from the National Longitudinal Survey of Youth. 相似文献
3.
Adrian Leftwich 《Development and change》1994,25(2):363-386
Current western aid and development policy aims to promote ‘good governance’ in the third world. Few would deny that competent, open and fair administration is both a worthy aim and a self-evident requirement of development. However, the current orthodoxy clearly illustrates the technicist fallacy, which is implicit in the following quotation from Pope, that the effective administration or ‘management’ of development is essentially a technical or practical matter. This article argues that development is fundamentally a political matter and that it is illusory to conceive of good governance as independent of the forms of politics and type of state which alone can generate, sustain and protect it. For Forms of Government, let fools contest; Whate'er is best administered, is best. (Pope, 1734: Bk 3, lines 303-4). 相似文献
4.
This paper develops a nested family of market interaction models for the general case of spatial or aspatial goods. Market structure effects are identified in the form of intraregional and extraregional competition. The competing destinations and competing central place models are shown to be special cases of the general modeling framework. An empirical example, using survey data collected from Chicago-area Management and Public Relations (SIC 874) firms, illustrates how the family of models may be used to identify market structure. 相似文献
5.
Gabriel Colletis 《European Planning Studies》1993,1(2):169-180
A region's technology potential can be developed in three ways: public finding; private investment (by business); and an intermediate area which ensures coherence between the public and private sectors, and which is mainly to be seen in interface structures between universities and business. After presenting these ways for Rhône‐Alpes, the paper introduces the regional policy to promote science and technology. According to French centralized political structure, the regional government acts as a lever. The region's innovation‐oriented policy, which should not be confused with a research‐oriented policy, has the impact of aiming all action at improving the technological environment of business, and at facilitating their economic development by integrating new technologies. Similarities between Rhône‐Alpes and Baden‐Würtemberg have led these two regions to cooperate increasingly in the fields of science and technology. The ‘four motor‐regions for Europe’ (with Lombardia and Catalonia) experiment in the field of new‐material investment cooperation could be useful if we think of the process aimed at strengthening integration in the European Community. 相似文献
6.
7.
Adrian Muckle 《The Journal of Pacific history》2018,53(1):130-131
8.
9.
10.