全文获取类型
收费全文 | 730篇 |
免费 | 18篇 |
专业分类
各国政治 | 52篇 |
工人农民 | 37篇 |
世界政治 | 61篇 |
外交国际关系 | 36篇 |
法律 | 364篇 |
中国政治 | 6篇 |
政治理论 | 183篇 |
综合类 | 9篇 |
出版年
2020年 | 4篇 |
2019年 | 7篇 |
2018年 | 14篇 |
2017年 | 20篇 |
2016年 | 14篇 |
2015年 | 17篇 |
2014年 | 8篇 |
2013年 | 110篇 |
2012年 | 21篇 |
2011年 | 25篇 |
2010年 | 15篇 |
2009年 | 22篇 |
2008年 | 18篇 |
2007年 | 16篇 |
2006年 | 22篇 |
2005年 | 18篇 |
2004年 | 17篇 |
2003年 | 20篇 |
2002年 | 19篇 |
2001年 | 13篇 |
2000年 | 8篇 |
1999年 | 10篇 |
1998年 | 9篇 |
1997年 | 17篇 |
1996年 | 10篇 |
1995年 | 16篇 |
1994年 | 13篇 |
1993年 | 15篇 |
1992年 | 12篇 |
1991年 | 18篇 |
1990年 | 4篇 |
1989年 | 12篇 |
1988年 | 11篇 |
1987年 | 10篇 |
1986年 | 17篇 |
1985年 | 13篇 |
1984年 | 18篇 |
1983年 | 7篇 |
1982年 | 13篇 |
1981年 | 15篇 |
1980年 | 15篇 |
1979年 | 8篇 |
1978年 | 7篇 |
1977年 | 4篇 |
1976年 | 10篇 |
1975年 | 9篇 |
1974年 | 6篇 |
1973年 | 9篇 |
1971年 | 2篇 |
1967年 | 2篇 |
排序方式: 共有748条查询结果,搜索用时 15 毫秒
121.
Child support reforms have focused almost exclusively on punitive measures, driven by the stereotypical image of a “deadbeat dad” who can afford to pay child support but refuses to do so. This image fits some noncustodial fathers, but ignores the diverse nature of this population. We show that lack of income is a significant barrier to child support payments for 16 to 33 percent of young noncustodial fathers, whom we call “turnips” after the common saying that “You can't get blood from a turnip.” Furthermore, the characteristics of turnips are similar to those of custodial mothers who are long-term welfare recipients—both are disproportionately composed of young, poorly educated, never-married minorities with little work experience. These findings suggest that a new approach to child support enforcement is needed, one that offers these fathers flexible child support orders that both reflect their current economic circumstances and provide employment and training assistance to enable them to meet their child support obligations in the future. 相似文献
122.
Ronald S. Jarmin 《Journal of policy analysis and management》1999,18(1):99-119
This article combines the richest data set and most rigorous econometric methodology used, to date, to evaluate the impact of manufacturing extension services on client productivity growth. Client plants are identified in the Longitudinal Research Database (LRD) and their labor productivity growth between 1987 and 1992 is compared to nonclients. Both simple OLS and two‐stage models are used to estimate the effect of manufacturing extension on productivity growth. The first‐stage probit model is informative about the client selection process. Results suggest that participation in manufacturing extension is associated with between 3.4 and 16 percent higher labor productivity growth between 1987 and 1992. The article demonstrates the usefulness of longitudinal microdata sets, such as the LRD, for program evaluation. © 1998 by the Association for Public Policy Analysis and Management 相似文献
123.
Lopez V Kopak A Robillard A Gillmore MR Holliday RC Braithwaite RL 《Journal of youth and adolescence》2011,40(8):945-957
Sexual risk taking among female delinquents represents a significant public health problem. Research is needed to understand
the pathways leading to sexual risk taking among this population. This study sought to address this issue by identifying and
testing two pathways from child maltreatment to non-condom use among 329 White and 484 African American female adolescent
detainees: a relational pathway and a substance use coping pathway. The relational pathway indicated that child maltreatment
would be related to non-condom use via depressive self-concept and condom use self-efficacy. The substance use coping pathway
suggested that depressive self-concept and alcohol-based expectancies for sexual enhancement would mediate the relationship
between child maltreatment and non-condom use. As hypothesized, the relational pathway variables were associated with one
another in the expected directions; however, evidence of mediation was not found. Support for mediation was found for the
substance use coping pathway. Exploratory across group comparison analysis indicated that the relational pathway was significant
for White girls whereas the substance use coping pathway was significant for African American girls. Limitations and implications
for future research are discussed. 相似文献
124.
Landor A Simons LG Simons RL Brody GH Gibbons FX 《Journal of youth and adolescence》2011,40(3):296-309
Research has documented a negative relationship between religion and risky sexual behavior. Few studies, however, have examined
the processes whereby religion exerts this effect. The present study develops and tests a model of various mechanisms whereby
parental religiosity reduces the likelihood of adolescents’ participation in risky sexual behavior (early sexual debut, multiple
sexual partners, and inconsistent condom use). Structural equation modeling, using longitudinal data from a sample of 612
African American adolescents (55% female), provided support for the model. The results indicated that parental religiosity
influenced adolescent risky sexual behavior through its impact on authoritative parenting, adolescent religiosity, and adolescent
affiliation with less sexually permissive peers. Some mediating mechanisms differed by the gender of the respondent, suggesting
a “double-standard” for daughters but not for sons. Findings also indicated the importance of messages about sexual behavior
that are transmitted to adolescents by their peers. Theoretical and policy implications of the findings are discussed. 相似文献
125.
The evolution of the political criteria for accession to the European Community, 1957–1973 下载免费PDF全文
Ronald Janse 《European Law Journal》2018,24(1):57-76
This article describes the evolution of political conditions for accession to the European Community from 1957 to 1973 on the basis of the responses of the Community and national parliaments to applications for association (Article 238 EC Treaty) and membership (Article 237 EC Treaty) and to a US foreign policy initiative. It challenges the thesis that the European Community was originally uninterested in the political nature of its members as long as they were non‐communist and that the Community made a volte face in 1962 in reaction to a request for an association agreement by Franco's Spain. It argues that the Copenhagen political criteria, except minority protection, were firmly established by 1973 after a series of pronouncements and decisions by the European Parliament, national parliaments (both 1962), the Commission (1967) and the Council (1973). The article aims to contribute to the early history of the constitutionalization of the Union and discusses how demands from outsiders prompted the Six to define the constitutional requirements for (candidate) members. It is partly based on new archival research. 相似文献
126.
Abstract Ninety-one college subjects listened to Cognitive Interviews (CI) and Standard police interviews of 7-year old children who were attempting to describe an earlier incident of playing a game of Simon Says. The subjects evaluated the witness's credibility and also the interviewer's manipulativeness. The perceived credibility of the witness was not affected by the type of interview, i.e., the CI did not render the witness unduly credible. In addition, the CI interviewer was judged to be less manipulative than the Standard police interviewer. These results were discussed in light of some potential legal concerns about using the CI. 相似文献
127.
128.
129.
130.