全文获取类型
收费全文 | 7217篇 |
免费 | 218篇 |
专业分类
各国政治 | 244篇 |
工人农民 | 245篇 |
世界政治 | 485篇 |
外交国际关系 | 225篇 |
法律 | 4921篇 |
中国政治 | 47篇 |
政治理论 | 1230篇 |
综合类 | 38篇 |
出版年
2020年 | 92篇 |
2019年 | 112篇 |
2018年 | 130篇 |
2017年 | 161篇 |
2016年 | 168篇 |
2015年 | 110篇 |
2014年 | 159篇 |
2013年 | 648篇 |
2012年 | 172篇 |
2011年 | 190篇 |
2010年 | 164篇 |
2009年 | 158篇 |
2008年 | 189篇 |
2007年 | 217篇 |
2006年 | 226篇 |
2005年 | 181篇 |
2004年 | 190篇 |
2003年 | 203篇 |
2002年 | 168篇 |
2001年 | 314篇 |
2000年 | 291篇 |
1999年 | 222篇 |
1998年 | 86篇 |
1997年 | 69篇 |
1996年 | 76篇 |
1995年 | 73篇 |
1994年 | 77篇 |
1993年 | 62篇 |
1992年 | 142篇 |
1991年 | 154篇 |
1990年 | 139篇 |
1989年 | 155篇 |
1988年 | 135篇 |
1987年 | 151篇 |
1986年 | 136篇 |
1985年 | 153篇 |
1984年 | 118篇 |
1983年 | 141篇 |
1982年 | 94篇 |
1981年 | 93篇 |
1980年 | 69篇 |
1979年 | 99篇 |
1978年 | 74篇 |
1977年 | 66篇 |
1976年 | 57篇 |
1975年 | 47篇 |
1974年 | 57篇 |
1973年 | 59篇 |
1971年 | 50篇 |
1970年 | 46篇 |
排序方式: 共有7435条查询结果,搜索用时 31 毫秒
251.
A. Ribotti R. Sorgente A. Hanggono G. M. R. Manzella N. Hendiarti L. Fusco T. R. Adi Y. S. Djajadihardja A. R. Farhan M. C. G. Frederik W. F. Ma’ruf B. Realino V. Rupolo P. Ruti M. Sadly F. Syamsudin B. A. Subki 《Asia Europe Journal》2008,6(2):277-292
In 2005 Indonesian and European institutes joined to start the first step for the implementation of an Ocean Operational System
in the Indonesian archipelago. The system will support the decision making process for the sustainable use of marine resources,
providing useful information and added value products as well as a service for an improved management of the sea with high
business impact to targeted groups as public authorities and commercial operators (coastal managers, fishermen, shipping companies).
In this paper the System is shortly described with its potential benefits and economic and social impacts.
相似文献
A. Ribotti (Corresponding author)Email: |
R. Sorgente |
A. Hanggono |
G. M. R. Manzella |
N. Hendiarti |
L. Fusco |
T. R. Adi |
Y. S. Djajadihardja |
A. R. Farhan |
M. C. G. Frederik |
W. F. Ma’ruf |
B. Realino |
V. Rupolo |
P. Ruti |
M. Sadly |
F. Syamsudin |
B. A. Subki |
252.
Results from previous studies of campaign spending imply that equal-sized grants to both incumbents and challengers are a net benefit to challengers, who on average spend less money and derive greater marginal returns from each additional dollar. This study provides an experimental test of this proposition. Cities holding mayoral elections in November 2005 and 2006 were randomly assigned to broadcast nonpartisan radio ads that stated the names of the mayoral candidates, reminded listeners about the date of the upcoming election, and encouraged them to vote. Consistent with the findings of previous studies on the differential effects of incumbent and challenger campaign spending on election outcomes, we find that these radio ads produced substantially more competitive elections. The borderline statistical significance of our results, however, invites replication of this experiment. 相似文献
253.
254.
Local election officials are the administrators of democracy, but we know little about their views. This paper draws from two national surveys of local election officials. The authors find that local election officials generally support the goals of the federal Help America Vote Act but are less enthusiastic about the actual impact of the legislation. Implementation theory helps explain their evaluation of federal reforms. Goal congruence with reform mandates, resource availability, and a willingness to accept federal involvement predicts support for these reforms. Federal policy changes have promoted electronic systems, and some of the authors' findings are relevant to research on e-government. Users of electronic voting machines tend to have high confidence in them despite the significant criticism the machines have faced. Local election officials who support e-government generally are more likely to more positively evaluate federal reforms. 相似文献
255.
Vaughn P. Shannon 《国际研究季刊》2000,44(2):293-316
I examine why states violate norms they embrace as members of international society. The rationalist answer, that norms are violated whenever they conflict with interests, is underspecified and empirically challenged. Constructivists cannot address violations well from their structural, sociological perspective. I argue from political psychology that violations stem from the motivated biases of actors who face a moral dilemma between personal desires and social constraints. These biases compel leaders to interpret norms and situations in a manner that justifies violation as socially acceptable. The ability to do so depends on the norm and the situation. The more parameters a norm possesses, and the more ambiguous those parameters are, the easier it is for actors to interpret them favorably to justify violation. Oftentimes norms are what states make of them. If the situation is plausible for states to claim exemption, they violate; otherwise they are constrained. The U.S. invasion of Panama illustrates these dynamics. 相似文献
256.
David Córdova Seth J. Schwartz Jennifer B. Unger Lourdes Baezconde-Garbanati Juan A. Villamar Daniel W. Soto Sabrina E. Des Rosiers Tae Kyoung Lee Alan Meca Miguel Ángel Cano Elma I. Lorenzo-Blanco Assaf Oshri Christopher P. Salas-Wright Brandy Piña-Watson Andrea J. Romero 《Journal of youth and adolescence》2016,45(10):2164-2177
257.
258.
259.
260.