全文获取类型
收费全文 | 12560篇 |
免费 | 1234篇 |
专业分类
各国政治 | 488篇 |
工人农民 | 406篇 |
世界政治 | 910篇 |
外交国际关系 | 379篇 |
法律 | 9326篇 |
中国共产党 | 1篇 |
中国政治 | 87篇 |
政治理论 | 2117篇 |
综合类 | 80篇 |
出版年
2021年 | 60篇 |
2020年 | 368篇 |
2019年 | 370篇 |
2018年 | 420篇 |
2017年 | 493篇 |
2016年 | 498篇 |
2015年 | 468篇 |
2014年 | 453篇 |
2013年 | 1326篇 |
2012年 | 295篇 |
2011年 | 401篇 |
2010年 | 547篇 |
2009年 | 516篇 |
2008年 | 300篇 |
2007年 | 282篇 |
2006年 | 389篇 |
2005年 | 264篇 |
2004年 | 250篇 |
2003年 | 246篇 |
2002年 | 237篇 |
2001年 | 454篇 |
2000年 | 363篇 |
1999年 | 310篇 |
1998年 | 159篇 |
1997年 | 142篇 |
1996年 | 114篇 |
1995年 | 135篇 |
1994年 | 156篇 |
1993年 | 124篇 |
1992年 | 224篇 |
1991年 | 240篇 |
1990年 | 226篇 |
1989年 | 234篇 |
1988年 | 210篇 |
1987年 | 181篇 |
1986年 | 211篇 |
1985年 | 228篇 |
1984年 | 222篇 |
1983年 | 188篇 |
1982年 | 148篇 |
1981年 | 133篇 |
1980年 | 131篇 |
1979年 | 151篇 |
1978年 | 94篇 |
1977年 | 81篇 |
1976年 | 71篇 |
1975年 | 72篇 |
1974年 | 78篇 |
1973年 | 65篇 |
1971年 | 56篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
971.
A simple and reliable previously reported extraction procedure has been extended to the analysis of a wide range of basic and neutral drugs in postmortem blood and other tissues. The method employs 200 microliters of blood treated with water and ammonia and extracted with diethyl ether. The concentrated extract is generally sufficiently clean for direct analysis by gas chromatography and high pressure liquid chromatography. Recovery, precision and linearity data are presented for selected drugs. 相似文献
972.
Political Behavior - Much of the gender gap literature focuses on women’s greater average liberalism relative to men. This approach masks considerable heterogeneity in political identity and... 相似文献
973.
ANDREAS DÜR 《European Journal of Political Research》2019,58(2):514-535
Through what mechanism do interest groups shape public opinion on concrete policies? In this article, three hypotheses are proposed that distinguish between the effect of the arguments conveyed by interest groups and the effect of interest groups as source cues. Two survey experiments on the proposed Transatlantic Trade and Investment Partnership (TIPP) and the 2015 Paris Agreement on climate change allow the testing of these hypotheses. The resulting evidence from several countries shows that, with respect to interest groups’ attempts at shaping public opinion, arguments matter more than their sources. This is so even when accounting for people's trust in the interest groups that serve as source cues and for people's level of information about a policy. The finding that interest groups affect public opinion via arguments rather than as source cues has implications for the literature on elite influence on public opinion and the normative evaluation of interest group activities. 相似文献
974.
Kevin D. Ward 《International Public Management Journal》2019,22(1):71-98
While research suggests that public service motivation may be a dynamic trait in individuals, particularly early in their careers, other recent research has found that PSM may be relatively stable upon entry into the workforce (Vogel and Kroll 2016). To identify more precisely the decision point among individuals considering a public service career, the present study uses the antecedents of public service motivation framework (Perry 1997) to predict participation in AmeriCorps, a voluntary national service program in the United States. Findings reveal that antecedent conditions of PSM, including the prevalence of seeing family members and mentors help others as well as participation in student government, predict whether an individual will join an AmeriCorps programs. Many of these self-reported motivations support the argument that people attracted to public service hold strong other-regarding values. These findings suggest that human resources managers would be wise to consider these antecedent conditions to public service motivation when identifying pools of talent for recruiting and selecting prospective employees. 相似文献
975.
Longmore Monica A. Sevareid Eric E. Manning Wendy D. Giordano Peggy C. Clemens William Taylor Heather 《Journal of youth and adolescence》2022,51(2):320-334
Journal of Youth and Adolescence - Despite the centrality of dating relationships for teens, it is unclear whether the influence of romantic partners’ alcohol use on adolescents’... 相似文献
976.
Do Stefanie Coumans Juul M. J. Börnhorst Claudia Pohlabeln Hermann Reisch Lucia A. Danner Unna N. Russo Paola Veidebaum Toomas Tornaritis Michael Molnár Dénes Hunsberger Monica De Henauw Stefaan Moreno Luis A. Ahrens Wolfgang Hebestreit Antje 《Journal of youth and adolescence》2022,51(6):1106-1117
Journal of Youth and Adolescence - Knowing the extent to which mental well-being and stressful life events during adolescence contribute to personality characteristics related to risk-taking... 相似文献
977.
Journal of Family Violence - This article explores the use of cognitive interviewing among one sensitive population, survivors of crime, and shares lessons learned from a cognitive interviewing... 相似文献
978.
Journal of Family Violence - The purpose of the present brief report was to examine the effects of a 6-week long physical exercise program on global self-esteem and physical self-perceptions among... 相似文献
979.
Journal of Quantitative Criminology - Living in close proximity to recent, violent crime may undermine sense of safety in the home territory by increasing perceived crime risk. Yet it is also... 相似文献
980.
Karin D. Martin 《Law & policy》2023,45(4):459-481
Fiscal contrition refers to the phenomenon of policy-makers becoming aware of the social costs of fines and fees, recognizing a need to reduce those costs, and taking action to do so. In order to reveal the occurrence of fiscal contrition, this analysis examines detailed budget data from three U.S. counties. Findings indicate a dominance of predatory over punitive monetary sanctions in county budgets. That is, fines and fees that extract revenue from a justice-involved population are more common than those with social control objectives. The analysis also reveals patterns and nuances in fine and fee usage and the revenue they produce, which illuminates pathways for reducing reliance on fine and fee revenue. This approach provides useful context for the burgeoning scholarship focused on the role of monetary sanctions in fueling social inequities. 相似文献