全文获取类型
收费全文 | 83篇 |
免费 | 7篇 |
出版年
2023年 | 1篇 |
2019年 | 3篇 |
2018年 | 4篇 |
2017年 | 2篇 |
2016年 | 6篇 |
2015年 | 4篇 |
2014年 | 1篇 |
2013年 | 26篇 |
2012年 | 2篇 |
2011年 | 1篇 |
2010年 | 1篇 |
2009年 | 3篇 |
2008年 | 4篇 |
2007年 | 4篇 |
2006年 | 1篇 |
2005年 | 1篇 |
2004年 | 3篇 |
2003年 | 2篇 |
2002年 | 3篇 |
2000年 | 1篇 |
1998年 | 2篇 |
1997年 | 2篇 |
1996年 | 4篇 |
1995年 | 2篇 |
1994年 | 1篇 |
1991年 | 1篇 |
1990年 | 1篇 |
1989年 | 1篇 |
1979年 | 1篇 |
1974年 | 1篇 |
1973年 | 1篇 |
排序方式: 共有90条查询结果,搜索用时 15 毫秒
1.
The purpose of this paper, prepared as a background document for the UNRISD/University of the West Indies conference on Economic Crisis and Third World Countries, is to provide a framework for consideration of societal changes accompanying economic recession and restructuring in Africa, Latin America and the Caribbean over the past decade. It is the central argument of the paper that adaptation to crisis should not be considered a temporary phenomenon, interrupting a single, lineal process of modernization which can be expected to resume its course once current difficulties are overcome. On the contrary, both crisis and adjustment have profoundly modified the structure of incentives within which individuals and households must attempt to ensure their livelihood, encouraging new patterns of behaviour with long-term implications for the nature of the economy, society and political practice. After a brief review of the macroeconomic background of crisis in each region, this central hypothesis is explored through a very preliminary analysis of the changing life chances of various kinds of upper, middle and lower income groups — emphasizing not only the costs but also the opportunities which have been associated with economic restructuring. Some individual and collective reactions to change are then considered, before raising a series of questions concerning the implications of crisis and adjustment for the state and civil society. 相似文献
2.
3.
4.
5.
Complementing recent theoretical models of tax competition with endogenous leadership, we empirically model local policy diffusion as a dynamic asymmetric process. Using a setting where local option sales taxes rapidly transitioned from nonexistence to ubiquity, we construct a policy leadership index to classify jurisdictions as leaders or followers. Using models that control for vertical tax competition effects, we show how asymmetric leader–follower dynamics characterize horizontal tax competition over the three decades that follow. A placebo test further supports our main conclusions. This methodological approach could be adapted to other settings where policies exhibit both extensive and intensive margins. 相似文献
6.
8.
9.
Freezing and melting behaviors of H2O‐NaCl‐CaCl2 solutions in fused silica capillaries and glass‐sandwiched films: implications for fluid inclusion studies
下载免费PDF全文
![点击此处可从《Geofluids》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Fluid inclusions of the H2O‐NaCl‐CaCl2 system are notorious for their metastable behavior during cooling and heating processes, which can render microthermometric measurement impossible or difficult and interpretation of the results ambiguous. This study addresses these problems through detailed microscopic examination of synthetic solutions during cooling and warming runs, development of methods to enhance nucleation of hydrates, and comparison of microthermometric results with different degrees of metastability with values predicted for stable conditions. Synthetic H2O‐NaCl‐CaCl2 solutions with different NaCl/(NaCl + CaCl2) ratios were prepared and loaded in fused silica capillaries and glass‐sandwiched films for microthermometric studies; pure solutions were used with the capillaries to simulate fluid inclusions, whereas alumina powder was added in the solutions to facilitate ice and hydrate crystallization in the sandwiched samples. The phase changes observed and the microthermometric data obtained in this study have led to the following conclusions that have important implications for fluid inclusion studies: (i) most H2O‐NaCl‐CaCl2 inclusions that appear to be completely frozen in the first cooling run to ?185°C actually contain large amounts of residual solution, as also reported in some previous studies; (ii) inability of H2O‐NaCl‐CaCl2 inclusions to freeze completely may be related to their composition (low NaCl/(NaCl + CaCl2) ratios) and lack of solid particles; (iii) crystallization of hydrates, which is important for cryogenic Raman spectroscopic studies of fluid inclusion composition, can be greatly enhanced by finding an optimum combination of cooling and warming rates and temperatures; and (iv) even if an inclusion is not completely frozen, the melting temperatures of hydrohalite and ice are still valid for estimating the fluid composition. 相似文献
10.