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   931篇
  免费   43篇
各国政治   44篇
工人农民   48篇
世界政治   87篇
外交国际关系   52篇
法律   398篇
中国共产党   1篇
中国政治   4篇
政治理论   334篇
综合类   6篇
  2023年   5篇
  2021年   5篇
  2020年   20篇
  2019年   15篇
  2018年   18篇
  2017年   20篇
  2016年   24篇
  2015年   20篇
  2014年   21篇
  2013年   114篇
  2012年   8篇
  2011年   27篇
  2010年   18篇
  2009年   23篇
  2008年   27篇
  2007年   36篇
  2006年   29篇
  2005年   33篇
  2004年   33篇
  2003年   28篇
  2002年   22篇
  2001年   27篇
  2000年   14篇
  1999年   17篇
  1998年   26篇
  1997年   16篇
  1996年   20篇
  1995年   9篇
  1994年   9篇
  1993年   12篇
  1992年   15篇
  1991年   14篇
  1990年   9篇
  1989年   20篇
  1988年   16篇
  1987年   19篇
  1986年   17篇
  1985年   17篇
  1984年   10篇
  1983年   15篇
  1982年   8篇
  1981年   17篇
  1980年   12篇
  1979年   11篇
  1978年   9篇
  1977年   13篇
  1976年   8篇
  1975年   9篇
  1972年   5篇
  1968年   8篇
排序方式: 共有974条查询结果,搜索用时 26 毫秒
781.
What can be learned from two decades of studies on policy entrepreneurship in developing countries? Policy entrepreneurship is a rapidly evolving analytical concept. A growing number of studies exploring public policy in developing countries use policy entrepreneurship as an explanatory theoretical concept. However, a substantial part of this research relies on qualitative case study analysis, lacking a comprehensive overview of the concept of policy entrepreneurship. This paper conducts a systematic review of the literature on policy entrepreneurship in developing countries. A total of 47 papers addressing policy entrepreneurship in the developing world, published between 1993 and 2017, have been analysed. The purpose and contribution of this paper are to offer a clearer picture of policy entrepreneurship in the developing world by concentrating on two aspects. First, we describe the characteristics of the studies on policy entrepreneurship in the developing world. Second, we analyse such studies, identifying the lessons that can be drawn on the phenomenon of policy entrepreneurship in the developing world. We conclude with an agenda for future studies, examining new theoretical, methodological, and empirical opportunities to advance the understanding of policy entrepreneurship in developing countries.  相似文献   
782.
783.
Committees have been established to improve legislation and make expert recommendations. However, many bills do not appear in committees, and how they reach the Senate floor varies in style and strategy. We develop and test expectations for when, as well as how, bills bypass Senate committee proceedings. The procedures legislators use to circumvent committees and what makes committee bypassing more probable are explored. The findings clearly demonstrate that bills introduced by ideologically extreme minority-party members are more likely to bypass committees. We also show a clear shift in the procedural choices senators make as the Senate becomes increasingly polarized. This article highlights the procedural choices members make, how these choices produce differing outcomes, and suggests evidence of positive agenda power for individual minority-party senators.  相似文献   
784.
ABSTRACT

The purpose of this paper is to shed light on what liberal states should tolerate outside their borders. This requires definitions of `liberalism,´ `toleration,´ and `state.´ In the first section of this paper, I briefly indicate how I use those and other terms necessary to the discussion and introduce the normative principle I take liberals to be committed to. In the second section, I continue clearing the path for the rest of my discussion. In the rest of the paper, I draw conclusions about what liberals should tolerate outside their state that I believe follow from the proffered definitions and principles. I limit myself to interference aimed at providing humanitarian aid, but do so in a way that is meant to provide resources for thinking about other sorts of interventions. In the third section, I consider humanitarian interventions done with the permission of the other state and will point toward a toleration-based view; here we are really talking about non-toleration of suffering. In the fourth section, I consider humanitarian interventions done without the permission of the other state; here we are talking about non-toleration of a state that harms its residents. I consider an objection in section five.  相似文献   
785.
ABSTRACT

In US intellectual and academic life, the 1940s and 1950s stand out as a period abounding with attempts to assay the characteristic and distinctive forms of ‘American culture’ and ‘American society,’ from Gunnar Myrdal’s An American Dilemma and the oft-noted ‘Tocqueville revival’ to works by Harold Laski, Max Lerner, David Riesman, C. L. R. James, the ‘consensus historians,’ and the early writers in the field of American Studies. Viewed as the culmination of a half-century span (roughly 1900–1950) of cultural nation-building, this rush of ‘American’ definitions at mid-century was shot through with politics – but in complex ways that are not adequately captured by the familiar recourse to Cold War anticommunism as the presumed ideological bedrock of the time. By treating this cultural nationalism as the outcome of an uneven and combined intellectual-historical process, we see how elusive (and illusory) the enterprise of designating ‘American’ traits actually was.  相似文献   
786.
The present study examines the quality of peer relations as a mediator between exposure to IPV (intimate partner violence) and internalizing behaviors in a sample of 129 preadolescents and adolescents (ages 10-18), who were interviewed via telephone as part of a multigenerational, prospective, longitudinal study. Relational victimization is also examined as a moderator of IPV exposure on internalizing behaviors. Results demonstrate a significant association of exposure to severe IPV and internalizing behaviors. Relational victimization is found to moderate the effects of exposure to severe IPV on internalizing behaviors. The present findings suggest that the effects of exposure to IPV had a particularly important effect on the risk for internalizing problems if the adolescent also experienced relational victimization. Conversely, the receipt of prosocial behaviors buffer against the effects of IPV exposure on internalizing symptoms in teen girls.  相似文献   
787.
788.
Researchers have found mixed support for documenting whether work is protective or harmful during adolescence. This study examined the association between work and problem behaviors among African American youth (N = 592; 53% female; = 14.8 years, SD = .60) followed from mid-adolescence to young adulthood over eight Waves (90% response rate over the first four Waves and a 68% response rate across all eight Waves). We explored three competing operationalizations of work: work history (never worked, worked), work intensity (no work, 20 h or less, and 21 h or over), and work trajectories (never worked, episodic work, stopped working, late starter, and consistent worker). Non-working youth reported higher marijuana use during young adulthood than their working counterparts. Nonworkers reported lower self-acceptance during young adulthood than those working greater number of hours per week. Differences in work trajectories for cigarette use, depression, and anxiety during adolescence imply that when and for how long youth work are also important factors to explore. Our findings lend tentative support to the work benefits perspective and suggest that the association between work and problem behaviors may depend on the work measure used. We discuss the implications of employing different work measures in adolescent research.
Cleopatra Howard CaldwellEmail:
  相似文献   
789.
We define "dual fingerprint reagents" as chemical formulations that produce with latent fingerprints in one stage impressions that are both colored and fluorescent. Solutions containing ninhydrin and group IIb metal salts appear to be true dual reagents. Application of these formulations to latent fingerprints on paper is as efficient as the two-step process beginning with ninhydrin and followed by treatment with metal salt. In the color mode, fingerprint detectability with the two ninhydrin-metal salt reagents (one with zinc chloride and the other with cadmium chloride) is comparable with that of ninhydrin itself, in spite of the difference in color. The sensitivity is significantly higher in the fluorescence mode. To view the latent impressions the exhibits are treated with ninhydrin-metal salt reagents and observed under white light illumination and under fluorescence conditions. Cooling to liquid nitrogen temperature enhances the fluorescence considerably. In the shorter wavelength domain, ninhydrin-metal salt reagents exhibit higher sensitivity than the recently reported dual reagent, genipin. The latter is advantageous, however, in the longer wavelength domain, on paper items with strong self-fluorescence, such as brown wrapping paper or paper printed with fluorescent ink. Upon reduction of the ninhydrin concentration 10-fold, ninhydrin-metal salt formulations become purely fluorogenic reagents; no color is noticed but the fluorescence is as intense as with concentrated solutions. Working at lower concentrations is an advantage from ecological and economical viewpoints.  相似文献   
790.
BACKGROUND: Clozapine is the gold standard in treatment of treatment-resistant psychotic patients. We know little about the effects of compulsory treatment in patients unwilling to accept the necessary treatment. AIMS: To assess the effectiveness, tolerability and safety of compulsory treatment with clozapine (CTC). METHOD: A cohort of 17 consecutive patients given compulsory treatment with clozapine were rated retrospectively by their treating psychiatrists on the basis of their case notes. RESULTS: CGI-S decreased significantly over time until last observation after a mean of more than 15 months. No patient deteriorated as measured by CGI-I. At last observation as many as ten of the 11 patients still on clozapine were classified as much to very much improved. The degree of custodial restriction at last observation showed improvement in 11 patients and no change in six. No serious adverse events were observed. CONCLUSION: A trial of compulsory treatment with clozapine showed this treatment to be feasible, effective, safe and well tolerated.  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