首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   7145篇
  免费   215篇
各国政治   235篇
工人农民   245篇
世界政治   481篇
外交国际关系   214篇
法律   4886篇
中国政治   47篇
政治理论   1215篇
综合类   37篇
  2020年   93篇
  2019年   112篇
  2018年   130篇
  2017年   159篇
  2016年   162篇
  2015年   109篇
  2014年   157篇
  2013年   643篇
  2012年   171篇
  2011年   186篇
  2010年   159篇
  2009年   156篇
  2008年   187篇
  2007年   214篇
  2006年   222篇
  2005年   179篇
  2004年   185篇
  2003年   201篇
  2002年   164篇
  2001年   314篇
  2000年   291篇
  1999年   220篇
  1998年   85篇
  1997年   69篇
  1996年   76篇
  1995年   68篇
  1994年   76篇
  1993年   61篇
  1992年   141篇
  1991年   153篇
  1990年   136篇
  1989年   155篇
  1988年   134篇
  1987年   149篇
  1986年   134篇
  1985年   152篇
  1984年   118篇
  1983年   139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   46篇
  1974年   57篇
  1973年   59篇
  1971年   50篇
  1970年   46篇
排序方式: 共有7360条查询结果,搜索用时 31 毫秒
211.
This research assessed whether there is an impact of race-ethnicity on depressed mood among adolescents, independent of socioeconomic status, whether gender differences in depressed mood are apparent within all race-ethnicity subgroups, and whether pubertal development influences depressed mood in a similar manner within gender and race-ethnicity subgroups. A three-stage, area probability sampling frame was utilized to select adolescents, ages 12–17 years, for an in-person interview. Depressed mood was assessed by the Children's Depression Inventory. Compared to Whites, African Americans, or Asian Americans, Latinos reported more symptoms of depressed mood, a finding that was independent of socioeconomic status. Advancing puberty was associated with depressed mood only among females, but the timing of pubertal changes, relative to ones peers, was related to depressed mood among both males and females, and among Latinos.  相似文献   
212.
Bonding in parent, peer, and school domains were compared in a general sample of children and a sample of children of methadone-treated parents. Bivariate comparisons revealed that children of methadone-treated parents had lower SES, and were significantly more likely to smoke cigarettes but not more likely to drink alcohol. Several measures of attachment were significantly different between the two samples across parent, peer, and school domains. Multivariate analyses indicated that the children of methadone-treated parents were more likely to smoke, even after accounting for the effects of demographic and attachment variables. For drinking, sample membership was not found to be significant. Attachment to school decreased the odds of both smoking and drinking in both samples. Peer attachment had no effect on the odds of smoking initiation; however,loyalty to best friend did predict increased odds of drinking initiation.  相似文献   
213.
This paper re‐examines the Lardy—Donnithorne debate in the provincial context of Guangdong. The study period is from 1949 to 1992. In the first place, the adequacy of provincial capital investment is evaluated against its population and national income shares. Secondly, it examines the capital construction investment from the administrative perspective with capital construction projects classified into central, ministry‐supported and local projects. Thirdly, it looks at the relationship from the financial perspective through a breakdown of capital construction investment by sources of investment funds, that is, state appropriation, domestic loans, foreign investment and self‐raised funds and others. Fourthly, the central‐local relationship is scrutinized through the fiscal relationship between the central and Guangdong governments. Lastly, extra‐budgetary funds data, whenever available, are also analyzed. The paper finds that the centripetal and centrifugal forces in Guangdong have always been in dynamic and precarious balance both before and after the Open Policy.  相似文献   
214.
Budget redirection in Georgia state government represents a change from the expectation of continuous budget growth to an expectation that budget expansion will be accompanied by compensating budget reductions through an ongoing process of priority assessment. Its essential features are: the requirement that state agencies identify a minimum of 5 percent of their current year's budget which becomes the primary means for funding new programs and services in the coming fiscal year; and a limit, based upon revenue projections, on the amount an agency may request above the current year's budget. Like budget reforms in any era, it emanated from a combination of fiscal, managerial, and political objectives.  相似文献   
215.
Goal-Based Learning and the Future of Performance Management   总被引:1,自引:0,他引:1  
All levels of government have begun to pursue results-based reforms, which assume that managers will use performance information to make better decisions. However, reforms have neglected the insights of a large and relevant literature on organizational learning. This article revisits this literature, treating results-based reform as an organizational learning mechanism and a deliberate structural effort to induce learning. From an organizational learning perspective, most results-based reforms target narrow process improvement (single-loop learning) rather than a broad understanding of policy choices and effectiveness (double-loop learning), even though the latter is more critical for long-term organizational success. Case evidence from state governments illustrates single- and double-loop learning and the importance of two frequently neglected aspects of organizational learning: learning forums—routines where performance information is deliberately examined—and the role of organizational culture in enabling or limiting learning.  相似文献   
216.
This study investigated the relationship between social information processing (SIP) and both relational and overt, physical aggression in a longitudinally-followed sample of 228 adolescent girls (ages 11–18; 140 with ADHD and 88 comparison girls). During childhood, girls participated in naturalistic summer camps where peer rejection, overt physical aggression, and relational aggression were assessed via multiple informants and methods. Approximately 4.5 years later, these girls participated in follow-up assessments during which they completed a commonly-used vignette procedure to assess SIP; overt and relational aggression were again assessed through multiple informants. Correlations between (a) overt and relational aggression and (b) maladaptive SIP were modest in this female adolescent sample. However, relationships between aggression and SIP were stronger for the comparison girls than for the girls with ADHD. The relevance of SIP models for adolescent girls and clinical implications of findings are discussed.
Amori Yee MikamiEmail:
  相似文献   
217.
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.
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
  相似文献   
218.
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   
219.
220.
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   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号