全文获取类型
收费全文 | 333篇 |
免费 | 25篇 |
专业分类
各国政治 | 27篇 |
工人农民 | 4篇 |
世界政治 | 49篇 |
外交国际关系 | 18篇 |
法律 | 153篇 |
中国政治 | 10篇 |
政治理论 | 96篇 |
综合类 | 1篇 |
出版年
2024年 | 1篇 |
2023年 | 4篇 |
2022年 | 4篇 |
2021年 | 5篇 |
2020年 | 13篇 |
2019年 | 16篇 |
2018年 | 9篇 |
2017年 | 17篇 |
2016年 | 18篇 |
2015年 | 16篇 |
2014年 | 18篇 |
2013年 | 63篇 |
2012年 | 13篇 |
2011年 | 13篇 |
2010年 | 18篇 |
2009年 | 8篇 |
2008年 | 9篇 |
2007年 | 8篇 |
2006年 | 12篇 |
2005年 | 16篇 |
2004年 | 12篇 |
2003年 | 8篇 |
2002年 | 7篇 |
2001年 | 1篇 |
2000年 | 11篇 |
1999年 | 3篇 |
1998年 | 4篇 |
1997年 | 8篇 |
1996年 | 1篇 |
1995年 | 3篇 |
1994年 | 2篇 |
1992年 | 2篇 |
1991年 | 1篇 |
1988年 | 2篇 |
1987年 | 2篇 |
1986年 | 3篇 |
1985年 | 1篇 |
1984年 | 1篇 |
1978年 | 1篇 |
1974年 | 1篇 |
1971年 | 1篇 |
1966年 | 1篇 |
1965年 | 1篇 |
排序方式: 共有358条查询结果,搜索用时 0 毫秒
91.
92.
Household‐level interview data from a probability sample survey conducted in the northeastern Ecuadorian Amazon in 1990 are used to examine the determinants of income and assets among migrant farmers in the agricultural frontier. Multivariate analysis indicates that size of plot owned, proximity to markets, duration of residence, quality of soil, receipt of technical assistance, off‐farm employment and initial wealth positively influence current household income and wealth. More land in cattle pasture is also associated with higher status. Some settlers are prospering relative to others despite variable soil quality, unsustainable land uses, geographic isolation, apparent scarcity of labor, and lack of supportive infrastructure. The article closes with a discussion of implications for policies to assist small farmers, with some consideration of the potential ecological consequences of farmers’ activities. 相似文献
93.
94.
95.
96.
The goal of this paper is to evaluate the attribution of policy prerogatives to European Union level institutions and compare them to the implications of normative policy models and to the preferences of European citizens. For this purpose we construct a set of indicators to measure the policy-making intensity of the European Union (European Council, Parliament, Commission, Court of Justice, etc.). We confirm that the extent and the intensity of policy-making by the EU have increased sharply over the last 30 years, but at different speeds, and in different degrees, across policy domains. In recent years the areas that have expanded most are quite remote from the EEC’s original mission of establishing a free market zone with common external trade policy. On the contrary some policy domains that would normally be attributed to the highest level of government remain at national level. We argue that the resulting allocation of prerogatives between the EU and member countries is partly inconsistent with normative criteria concerning the assignment of policies at different government levels, as laid out in the theoretical literature. 相似文献
97.
The importance of determining the time since death is crucial to criminal, civil and forensic cases. A technique exploiting the degradation of a protein, cardiac Troponin I (cTnI), to estimate the postmortem interval (PMI) was investigated. Cardiac Troponin I is a basic regulatory protein found as part of a ternary complex responsible for calcium dependent muscle contraction. An efficient extraction protocol to analyze the banding pattern of cTnI in postmortem tissue was developed. The analysis involves extraction of the protein, separation by denaturing gel electrophoresis (SDS-PAGE) and visualization by Western blot using cTnI specific monoclonal antibodies. A bovine model was used to develop and optimize the protocol. The homology of cTnI amongst mammalian species allows for the cross-reaction of human anti-cTnI antibodies with bovine cTnI. The results indicate a characteristic banding pattern amongst human cadavers (n=6), a pseudo-linear relationship between percent cTnI degraded and the log of the time since death (r>0.95), and a qualitative degradation band pattern that in a simple comparative analysis with a standard human heart (known time since death) can be used to estimate the postmortem interval. The degradation-banding pattern of tissue cTnI is useful in the determination of the early postmortem (pm) interval (0-5 days). Overall, this technique offers advantages such a wide postmortem interval, measurable degradation pattern, a temporal semiquantitative relationship and manageable temperature dependence over direct temperature methods. 相似文献
98.
Alberto J. Olvera 《群星:国际评论与民主理论杂志》1997,4(1):105-123
This article analyzes the current political transition in México from the vantage point of civil society. It departs from a definition of the Mexican authoritarian regime, now the oldest in the world, as a model of fusion between the state, the market and society. The crisis of the developmental model and the regime's increasing inability to incorporate the new social actors created by industrialization and urbanization opened up a long period of political crisis whose main content was a process of societal differentiation. The failure of President Salinas' project of neo-liberal reconstruction of the authoritarian regime deepened the crisis and led to the formation and consolidation of strong national political parties, the beginning of a still unequal, but effective electoral competition and especially to the emergence of several civic groups that are struggling for a democratization that goes beyond electoral politics. The collective identity as civil society of these civic groups has been instrumental for the critique of the regime's gradualist strategy of "permenent electoral reform". 相似文献
99.
Francisco Panizza 《拉美政治与社会》2004,46(3):1-28
This article analyzes the relationship between ideas, interests, and institutions in the 1996 reform of the civil service in Uruguay. Beneath the appearance of a process led by technocratic principles, the reform's agenda and content were shaped by legitimating principles, strongly institutionalized interests, and the political legacy of earlier failed reform attempts. Reformers sought a strategy of a reform "without losers," which, instead of gathering support for adoption and implementation, sought to minimize opposition. This deliberately low-profile strategy left people unaware of the reform's achievements and thereby reinforced a political culture that has made resistance to change both a political virtue and an inescapable condition. 相似文献
100.
We here present a study that arms the reader with various discussion points on the research and development (R&D) foreign direct investment (FDI) strategies of Chinese multinational corporations (MNCs) in Europe. Through archival research and interviews, we adopted a multi‐case study approach to investigate how significant are these investments and how relevant do they become for the local innovation systems. Our analysis shows that the establishment of R&D centers, and more importantly the evolution of these centers, does not coincide with what international business theories would have predicted. The Chinese MNCs considered entered Europe in a variety of forms, guided by various learning goals. However, we found evidence of the growing tendency of these companies to insulate themselves from local partners and to engage in less explorative and more exploitative R&D activity, adapting technologies developed elsewhere for the European market, gaining access to good indigenous labor and technologies rather than to local partnerships. 相似文献