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   3663篇
  免费   104篇
各国政治   255篇
工人农民   150篇
世界政治   332篇
外交国际关系   203篇
法律   1542篇
中国政治   15篇
政治理论   1228篇
综合类   42篇
  2023年   17篇
  2021年   18篇
  2020年   56篇
  2019年   53篇
  2018年   76篇
  2017年   84篇
  2016年   105篇
  2015年   61篇
  2014年   85篇
  2013年   608篇
  2012年   76篇
  2011年   99篇
  2010年   95篇
  2009年   95篇
  2008年   112篇
  2007年   124篇
  2006年   103篇
  2005年   98篇
  2004年   105篇
  2003年   110篇
  2002年   154篇
  2001年   83篇
  2000年   80篇
  1999年   85篇
  1998年   67篇
  1997年   80篇
  1996年   59篇
  1995年   49篇
  1994年   41篇
  1993年   50篇
  1992年   54篇
  1991年   60篇
  1990年   43篇
  1989年   54篇
  1988年   49篇
  1987年   45篇
  1986年   57篇
  1985年   48篇
  1984年   31篇
  1983年   56篇
  1982年   45篇
  1981年   33篇
  1980年   29篇
  1979年   25篇
  1978年   25篇
  1977年   23篇
  1976年   26篇
  1975年   19篇
  1974年   28篇
  1971年   14篇
排序方式: 共有3767条查询结果,搜索用时 15 毫秒
131.
Why has the Association of Southeast Asian Nations (ASEAN) proved so durable as a regional organisation given the many challenges it has faced since its inception in 1967? This analysis makes use of an historical institutionalist approach. It shows how the global political economy, through the injection of aid and investment and the development of production networks and increased trade, generated a generally positive regional economic environment that encouraged cooperation. It also provided the resources for the gradual institutionalisation of ASEAN and the expansion of its reach through the establishment of associated regional organisations. The result was that these factors, in combination, contributed to ASEAN’s staying power.  相似文献   
132.
The Victorian periodical press offers unique insights into many diverse areas of nineteenth-century experience, and the complex relations between gender, science and culture in particular, yet it has been consistently marginalized as a primary resource in academic study. The Science in the Nineteenth-century Periodical (SciPer) project at the universities of Sheffield and Leeds is creating a new point of access to a wide range of non-specialist periodicals across the century by means of a fully searchable electronic index. By detailing the entire contents of each journal, and not just those articles that have a clear scientific relevance, it becomes clear that science formed a fundamental and integral part of nineteenth-century culture. The electronic index, moreover, will include hypertext cross-reference links that will allow the user to identify a dialogic pattern of encounters between ostensibly diverse articles, rather than only to browse in a simple chronological mode. By adopting this innovative approach, the SciPer database will reveal the manifold intertextual relations between the fictional works of women writers like Elizabeth Gaskell and the scientific articles that often appeared in the pages of the same magazines, and will show that writers of both sexes and across several different genres actively engaged in vibrant interdisciplinary debates concerning scientific issues in a forum provided by the periodical. Although the SciPer database itself is not specifically focused on issues of gender, the index will include several periodicals aimed explicitly at a female readership and, by providing access to titles still rarely utilized in modern scholarship, it will offer further insights into the important contemporary debates about women and science, as well as the more subtle ways, in which gendered imagery was employed within scientific discourse. This article details some critical findings from Punch , The English Womans Domestic Magazine , Cornhill Magazine and the Review of Reviews .  相似文献   
133.
Many adolescents living in contexts characterized by adversity achieve positive outcomes. We adopt a protection–risk conceptual framework to examine resilience (academic achievement, civic participation, and avoidance of risk behaviors) among 1,722 never-married 12–19 year olds living in two Kenyan urban slums. We find stronger associations between explanatory factors and resilience among older (15–19 years) than younger (12–14 years) adolescents. Models for prosocial behavior and models for antisocial behavior emerge as key predictors of resilience. Further accumulation of evidence on risk and protective factors is needed to inform interventions to promote positive outcomes among youth situated in an ecology of adversity.  相似文献   
134.
This study examined the mediated and moderated effects of a universal family-focused preventive intervention, delivered during young adolescence, on internalizing symptoms assessed in young adulthood. Sixth grade students (N=446; 52% female; 98% White) and their families from 22 rural Midwestern school districts were randomly assigned to the experimental conditions in 1993. Self-report questionnaires were administered at seven time points (pre-test to young adulthood-age 21) to those receiving the Iowa Strengthening Families Program (ISFP) and to the control group. Results showed that growth factors of adolescent internalizing symptoms (grades 6-12) were predicted by ISFP condition and risk status (defined as early substance initiation). Moderation of the condition effect by risk status was found, with higher-risk adolescents benefitting more from the ISFP. Results also supported the hypothesis that the ISFP's effect on internalizing symptoms in young adulthood was mediated through growth factors of adolescents' internalizing symptoms; risk moderation, however, was only marginally significant in young adulthood. The relative reduction rate on clinical or subclinical levels of young adult internalizing symptoms was 28%, indicating that for every 100 young adults displaying clinical or subclinical levels of internalizing symptoms from school districts not offering an intervention, there could be as few as 72 displaying those levels of symptoms in school districts that offered middle school prevention programming. These findings highlight how the positive effects of family-focused universal interventions can extend to non-targeted outcomes and the related potential public-health impact of scaling up these interventions.  相似文献   
135.
School engagement, or the extent to which students are involved in, attached and committed to the academic and social activities in school, plays a prominent role in preventing academic failure, promoting competence, and influencing a wide range of adolescent outcomes. Although the multidimensional nature of school engagement is well-recognized, how the three purported parts of the construct work together is largely unknown. By using data from the longitudinal, 4-H study of Positive Youth Development, involving a sample of 1,029 adolescents (67.7 % female; mean age at Grade 9 = 14.92 years; 74.4 % of participants were European American, 5.2 % were Latino/a, 7.3 % were African American), the current study examined the interrelationships of behavioral, emotional, and cognitive aspects of school engagement over three years in adolescence (Grades 9–11). We used autoregressive lagged effects models to assess the relationships among the three engagement constructs. Results indicated that behavioral and emotional engagement were related bidirectionally (each variable was a basis and an outcome of the other). In addition, behavioral engagement influenced cognitive engagement (but the reverse of this relation was not found). Implications for future research are discussed.  相似文献   
136.
The positive youth development perspective, a strength-based relational developmental systems model that focuses on mutually influential relationships between individuals and contexts, has been used to study thriving across the second decade of life. However, more attention has been paid empirically to identifying the features of the individual (e.g., intentional self regulation, hope, or purpose) or to enumerating the role of context-general ecological assets than to the nature of individual-context relationships linked to thriving within specific contexts. The goal of this special section is to provide initial research reports about context-specific instances of the thriving process. The research focuses on two contexts where many youth spend a considerable amount, and often the majority, of their time—school and out-of-school time sports activities.  相似文献   
137.
Christabel Pankhurst (1880-1958) and Sylvia Pankhurst (1882-1960) were key figures in the fight for women's suffrage in Edwardian Britain but became estranged in 1914 over differences of view about policies and tactics for winning the vote. They had no contact with each other for almost forty years. In the spring of 1953, Sylvia had a severe heart attack and was not expected to survive. Christabel wrote a letter of sympathy to her which led, over the next four years, to intermittent correspondence between the two sisters. In these letters, which form the basis of this documentary article, the authors begin by reminiscing about their childhood and parents; later, they comment on what they perceive to be inaccuracies and/or malice in books about the suffragette movement that were published after the Second World War. In many of the letters, the sisters reflect on their memories of their involvement in the women's suffrage movement, some three decades earlier. The correspondence reveals, however, that the renewed contact between the sisters did not lead to any real meeting of minds. Two of the letters are reproduced photographically in full  相似文献   
138.
139.
140.
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