全文获取类型
收费全文 | 3527篇 |
免费 | 96篇 |
专业分类
各国政治 | 252篇 |
工人农民 | 134篇 |
世界政治 | 318篇 |
外交国际关系 | 196篇 |
法律 | 1493篇 |
中国政治 | 15篇 |
政治理论 | 1173篇 |
综合类 | 42篇 |
出版年
2021年 | 13篇 |
2020年 | 48篇 |
2019年 | 50篇 |
2018年 | 69篇 |
2017年 | 76篇 |
2016年 | 101篇 |
2015年 | 59篇 |
2014年 | 80篇 |
2013年 | 588篇 |
2012年 | 73篇 |
2011年 | 97篇 |
2010年 | 92篇 |
2009年 | 90篇 |
2008年 | 107篇 |
2007年 | 116篇 |
2006年 | 99篇 |
2005年 | 97篇 |
2004年 | 102篇 |
2003年 | 109篇 |
2002年 | 154篇 |
2001年 | 81篇 |
2000年 | 78篇 |
1999年 | 84篇 |
1998年 | 64篇 |
1997年 | 78篇 |
1996年 | 57篇 |
1995年 | 46篇 |
1994年 | 39篇 |
1993年 | 49篇 |
1992年 | 54篇 |
1991年 | 59篇 |
1990年 | 42篇 |
1989年 | 54篇 |
1988年 | 44篇 |
1987年 | 43篇 |
1986年 | 55篇 |
1985年 | 47篇 |
1984年 | 30篇 |
1983年 | 55篇 |
1982年 | 43篇 |
1981年 | 32篇 |
1980年 | 28篇 |
1979年 | 25篇 |
1978年 | 24篇 |
1977年 | 22篇 |
1976年 | 26篇 |
1975年 | 19篇 |
1974年 | 28篇 |
1972年 | 13篇 |
1971年 | 14篇 |
排序方式: 共有3623条查询结果,搜索用时 203 毫秒
991.
992.
993.
994.
Richard Vernon 《Political studies》2007,55(4):865-879
In a recent two-part article in this journal, John Horton offers reasons to reject 'philosophical anarchism', and claims that rejecting that view should lead us to an 'associative' account of political obligations. This article argues for a different conclusion. The claim that local obligations are irreducible or independent is vulnerable to critique, and does not provide a compelling account of moral conflict. Rejecting philosophical anarchism should lead us to a version of moral universalism that can find a place for local attachment. 相似文献
995.
996.
997.
998.
Charles B. Fleming Richard F. Catalano Kevin P. Haggerty Robert D. Abbott 《Journal of youth and adolescence》2010,39(6):670-682
While prior research has examined family, school, and peer factors as potential predictors of problem behavior, less attention
has been given to studying when these factors are most predictive of problems and if and when changes in these factors signal
risk. Using annual data on a community sample of 1,040 individuals (47% female; 81% White), this study models growth in risk
and protective factors during two developmental periods (Grades 5–8 and Grades 9–12) in order to predict substance misuse
and crime at age 19. For protective factors of positive relationships with family and positive bonds to school, both the levels
of these factors at Grade 5 and change between Grade 5 and Grade 8 predicted substance misuse and crime in early adulthood.
Higher likelihoods of both forms of problem behavior also were predicted by increases in the risk factor of exposure to negative
peers between 5th and 8th grade. In the late adolescent period, levels at 9th grade of all risk and protective factors examined
predicted both substance misuse and crime. Also, increases in exposure to negative peers in late adolescence predicted greater
likelihoods of both forms of problem behavior, while greater risk of substance misuse was predicted by decreases in school
bonding and academic achievement, and greater risk of crime was predicted by worsening relationships with family. The results
add to prior research by indicating that in addition to the level, change in risk and protective factors during these two
stages of development can be signals of risk and are promising targets for intervention. 相似文献
999.
Barbara Coyle McCabe Richard C. Feiock James C. Clingermayer Christopher Stream 《Public administration review》2008,68(2):380-386
Executive turnover can have profound effects on city policies, programs, and commitments such as contracting or issuing debt. This article identifies how political changes, reflected in the composition of the city council, and economic changes in the community influence city manager turnover. Analysis of manager turnover patterns in 143 large U.S. cities with council-manager governments from 1987 to 1999 allows us to distinguish "push" and "pull" factors that can induce city managers to leave their jobs. The empirical analysis demonstrates that political conflict and economic development can influence the likelihood that a city manager will exit a community, but these effects can be complex. In particular, the influence of community economic development on turnover includes a temporal dimension not revealed in previous research. We conclude by discussing the findings' implications for career patterns in city management. 相似文献
1000.
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