全文获取类型
收费全文 | 5346篇 |
免费 | 144篇 |
专业分类
各国政治 | 298篇 |
工人农民 | 145篇 |
世界政治 | 416篇 |
外交国际关系 | 233篇 |
法律 | 3101篇 |
中国政治 | 42篇 |
政治理论 | 1215篇 |
综合类 | 40篇 |
出版年
2020年 | 67篇 |
2019年 | 68篇 |
2018年 | 85篇 |
2017年 | 111篇 |
2016年 | 123篇 |
2015年 | 76篇 |
2014年 | 92篇 |
2013年 | 617篇 |
2012年 | 107篇 |
2011年 | 138篇 |
2010年 | 99篇 |
2009年 | 99篇 |
2008年 | 130篇 |
2007年 | 141篇 |
2006年 | 153篇 |
2005年 | 147篇 |
2004年 | 161篇 |
2003年 | 152篇 |
2002年 | 144篇 |
2001年 | 216篇 |
2000年 | 172篇 |
1999年 | 125篇 |
1998年 | 91篇 |
1997年 | 61篇 |
1996年 | 55篇 |
1995年 | 75篇 |
1994年 | 68篇 |
1993年 | 68篇 |
1992年 | 103篇 |
1991年 | 108篇 |
1990年 | 101篇 |
1989年 | 132篇 |
1988年 | 124篇 |
1987年 | 114篇 |
1986年 | 120篇 |
1985年 | 106篇 |
1984年 | 77篇 |
1983年 | 72篇 |
1982年 | 60篇 |
1981年 | 54篇 |
1980年 | 39篇 |
1979年 | 42篇 |
1978年 | 51篇 |
1977年 | 52篇 |
1976年 | 41篇 |
1975年 | 45篇 |
1974年 | 58篇 |
1973年 | 50篇 |
1972年 | 43篇 |
1969年 | 40篇 |
排序方式: 共有5490条查询结果,搜索用时 47 毫秒
131.
William L. Waugh Jr 《国际公共行政管理杂志》2013,36(3):477-499
The cliche that ‘one man's terroirist is another man' freedom fighter’ represents the major dilemma of anti-terrorism policymakers and administrators. The conceptual confusion is further complicated by the ideological orientations and policy interests of the observers. The comparative study of terrorism, however, has provided a conceptual underpinning and does provide the tools for sorting out the biases. This article compares the six principal models of political terrorism and suggests that each in fact describes a distinct form of political violence depending upon the perspective of the observer. Each of the forms of terrorism, moreover, may require a unique set of remedies. Using the widely publicized TWA bijacking during the summer of 1985 as an example, the analysis examines the differences in the American, Israeli, and Lebanese government perspectives and how those differences influenced policymaking. 相似文献
132.
133.
134.
Electoral opposition to long‐established authoritarian regimes may be loyal or rejectionist. Loyal oppositionists vote to send a selective signal to rulers; rejectionist oppositionists vote blank or void the ballot in full disapproval. In Cuba, the number of candidates equals the number of seats, yet voters may vote blank, void, or selectively (choosing some but not all candidates on the ballot), although the Communist Party has campaigned for all candidates. This article uses a unique dataset for Cuba's 2013 National Assembly elections to study aggregate opposition outcomes. It shows the emergence of a loyal opposition, which sometimes votes for and sometimes against Communist Party candidates. The rejectionist opposition, stable over time, never votes for Communist Party candidates; it is found where the Communist Party behaves monopolistically. This combined opposition has better national‐level political information; it comes from more educated or larger urban areas or areas closer to Havana. 相似文献
135.
Cerver Romero Elvira Ferreira João J. M. Fernandes Cristina I. 《The Journal of Technology Transfer》2021,46(4):1173-1195
The Journal of Technology Transfer - The importance and the definition of an entrepreneurial university (EU), together with the factors that lead to its existence, have been widely discussed in the... 相似文献
136.
Laura M. Argys Daniel I. Rees Dominic J. Brewer 《Journal of policy analysis and management》1996,15(4):623-645
Schools across the country are ending the practice of grouping students based on ability, in part, because of research indicating that tracking hurts low-ability students without helping students of other ability levels. Using a nationally representative survey conducted by the National Center for Education Statistics, (NCES) we reexamine the impact of tracking on high school student achievement through the estimation of a standard education production function. This approach allows us to control for the possibility that track is correlated with factors such as class size and teacher education. In addition, we address the possibility that there are unobserved student or school characteristics that affect both achievement and track placement. Our results indicate that abolishing tracking in America's schools would have a large positive impact on achievement for students currently in the lower tracks, but that this increase in achievement would come at the expense of students in upper-track classes. 相似文献
137.
There is a dearth of information on the mutual interaction between metal intoxication and adipocere formation. Herein, 40 adult female albino rats were distributed into two equal groups, one used as control while the other orally administered single dose of cadmium chloride (CdCl2) 225 mg/kg·bw (LDmin). Control group was killed by cervical dislocation. Half of dead rats of both groups were subjected for determination of iodine value and estimation of cadmium (Cd) residues while the other half of both groups were submerged in opened glass container previously filled with 4 L dechlorinated tap water kept in closed room with an open air access (one cadaver/container). Gross morphological changes of submerged cadavers were recorded weekly along the experiment. At the end of the experiment, after 3 months, samples were collected again for iodine value determination and estimation of Cd residues. The obtained results revealed the depressant effect of Cd toxicity on development of adipocere. Cd residues were found in different tissues of cadavers at time of death with the highest amount in the intestines followed by the liver and kidneys, then lungs, adipose tissue, muscles, and finally the bones. After 3 months of water submersion, tissues exhibited significant decrease in the amount of Cd residues but to a limit that was still detected. This study concluded the possibility of detection of Cd residues even after adipocere formation. Additionally, it shed light on the possibility of the interference of environmental pollution with the natural rate of decomposition especially adipocere formation. 相似文献
138.
Journal of Chinese Political Science - 相似文献
139.
The U.S. electric power sector has experienced a substantial shift of the generation mix since the turn of the century, moving from heavy reliance on coal‐powered generation to one drawing more from natural gas and, more recently, renewables. This transition has been forged by a mix of macroeconomic factors (recession and recovery); technological breakthroughs (horizontal drilling coupled with hydraulic fracturing; improvements in natural gas plant efficiency); clean energy policies at federal, state, and local levels of government; and private sector demands for carbon‐free energy sources. These factors have combined to reduce carbon emissions from electric power generation substantially this century. In this article we examine the extent of this transition, its causes, as well as the distinct American institutional factors steering it, including energy and environmental federalism, electoral politics, and the political economy of clean energy policy enactment and resistance. 相似文献
140.