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   1523篇
  免费   95篇
各国政治   101篇
工人农民   57篇
世界政治   155篇
外交国际关系   142篇
法律   680篇
中国共产党   1篇
中国政治   18篇
政治理论   440篇
综合类   24篇
  2024年   3篇
  2023年   21篇
  2022年   8篇
  2021年   15篇
  2020年   49篇
  2019年   64篇
  2018年   69篇
  2017年   76篇
  2016年   71篇
  2015年   54篇
  2014年   79篇
  2013年   232篇
  2012年   66篇
  2011年   65篇
  2010年   53篇
  2009年   65篇
  2008年   60篇
  2007年   57篇
  2006年   51篇
  2005年   50篇
  2004年   50篇
  2003年   42篇
  2002年   42篇
  2001年   35篇
  2000年   28篇
  1999年   17篇
  1998年   17篇
  1997年   17篇
  1996年   10篇
  1995年   24篇
  1994年   5篇
  1993年   14篇
  1992年   11篇
  1991年   10篇
  1990年   10篇
  1989年   11篇
  1988年   7篇
  1987年   5篇
  1986年   13篇
  1985年   6篇
  1984年   4篇
  1983年   2篇
  1982年   5篇
  1981年   4篇
  1980年   3篇
  1979年   3篇
  1978年   2篇
  1977年   3篇
  1976年   2篇
  1973年   4篇
排序方式: 共有1618条查询结果,搜索用时 23 毫秒
61.
This article focuses on the degree to which friends’ influence on substance use is conditioned by the consistency between their behavior and that of schoolmates (individuals enrolled in the same school, but not identified as friends), contributing to the literature on the complexity of interactive social influences during adolescence. Specifically, it hypothesizes that friends’ influence will diminish as their norms become less similar to that of schoolmates. The authors also propose that this conditioning relationship is related to the density of the friendship group. This study uses data from the National Longitudinal Survey of Adolescent Health (AddHealth) (n ~ 8,000, 55 % female) to examine the interactive relationship between friend and schoolmate influences on adolescent substance use (smoking and drinking). The sample contains students ranging from age 11 to 22 and is 60 % White. The findings demonstrate that, as the substance use of the friendship group becomes more dissimilar from schoolmates’ substance use, the friendship group’s influence on adolescent substance use diminishes. Further, the results demonstrate that this conditioning relationship does not emerge when the friendship group is highly dense.  相似文献   
62.
Prior research has identified a vast number of correlates for delinquent behavior during adolescence, yet a considerable number of errors in prediction remain. These errors suggest that behavioral development among a portion of youths is not well understood, with some exhibiting resilience and others a heightened vulnerability to risks. Examining cases that do not confirm prediction outcomes provides an opportunity to achieve a greater understanding of the relationships between risk factors and delinquency, which can be used to improve theoretical explanations of behavior. This study explores the contribution of genetic and environmental factors to differences in individual responses to cumulative risk for delinquency among a sample of adolescent twins (N = 784 pairs, 49 % female) in the National Longitudinal Study of Adolescent Health. The results indicate that additive genetic and unique environmental factors significantly contribute to variation in responses to cumulative risk across 14 risk factors spanning individual, familial, and environmental domains. When analyzed separately, the majority of the difference between vulnerable youths and the overall population was attributed to genetic influences, while differences between resilient youths and the population were primarily attributed to environmental influences. The findings illustrate the importance of examining both genetic and environmental influences in order to enhance explanations of adolescent offending.  相似文献   
63.
Empirical evidence suggests that religiousness is related negatively to adolescent substance use; yet, we know little about how such protective effects might occur. The current study examined whether parents’ and adolescents’ religiousness are associated positively with parental, religious, and self-monitoring, which in turn are related to higher self-control, thereby related to lower adolescent substance use. Participants were 220 adolescents (45 % female) who were interviewed at ages 10–16 and again 2.4 years later. Structural equation modeling analyses suggested that higher adolescents’ religiousness at Time 1 was related to lower substance use at Time 2 indirectly through religious monitoring, self-monitoring, and self-control. Higher parents’ religiousness at Time 1 was associated with higher parental monitoring at Time 2, which in turn was related to lower adolescent substance use at Time 2 directly and indirectly through higher adolescent self-control. The results illustrate that adolescents with high awareness of being monitored by God are likely to show high self-control abilities and, consequently, low substance use. The findings further suggest that adolescents’ religiousness as well as their religious environments (e.g., familial context) can facilitate desirable developmental outcomes.  相似文献   
64.
Student engagement is an important contributor to school success, yet high school students routinely describe themselves as disengaged. Identifying factors that alter (increase) engagement is a key aspect of improving support for student achievement. This study investigated students’ perceptions of autonomy, teacher connection, and academic competence as predictors of changes in student engagement within the classroom from the start to the end of a course. Participants were 578 (58% female) diverse (67.8% White, 25.2% African American, 5.1% Hispanic, 1.2% Asian American) high school students from 34 classrooms who provided questionnaire data both at the start and the end of a single course. Novel results from a cross-lagged model demonstrated that students who perceived their classrooms as allowing and encouraging their own autonomy in the first few weeks increased their engagement throughout the course, rather than the typical decline in engagement that was demonstrated by students in other classrooms. This finding is unique in that it extended to both students’ perceptions of engagement and observations of student engagement, suggesting a fairly robust pattern. The pertinence of this finding to adolescent developmental needs and its relationship to educational practice is discussed.  相似文献   
65.
Abstract

For Leave voters the Brexit referendum of 23 June 2016 was invested with hopes and dreams, of refound sovereignty and control, freedom and liberty, subjectivity and agency. Brexit was an opportunity for both new beginnings and a reclamation of British essences. Winning, however, has not provided the closure promised, and today Leave supporters often appear decidedly anxious and angry. Bringing together literature on ontological security with Lacanian understandings of the (always incomplete) nature of subjectivity, this paper provides an explanation of how it is that ’Brexit’ became invested with such high hopes of fulfilment, but also why the populist ’fantasies’ underpinning Brexit have inevitably fallen short. However, while closure around ontological security and subjectivity is impossible, the paper shows how the promise of fulfilment (and its inevitable failure) can be politically seductive and mobilizing, is a central strategy of populist politics, but as such is also one that is only likely to exacerbate the ontological anxieties and insecurities upon which populist politics preys.  相似文献   
66.
Journal of Youth and Adolescence - Extant literature has demonstrated that self-control is critical for health and adjustment in adolescence. Questions remain regarding whether there are...  相似文献   
67.
This paper utilises a qualitative narrative analysis approach to examine smaller foreign investors operating within the Russian agricultural sector as private farmers: the foreign versions of the krestyansko-fermerskiye khoziaistva (peasant farms) that were the early focus of agrarian reform. With difficulty experienced by foreign investment in Russian agriculture, and with the Putin administration shifting its focus to larger scale agriculture, interest lies in the fate of these smaller foreign investors, set in the broader question of: ‘Is there really a future for smaller foreign investors in Russia?’ The investors were aligned along a performance and narrative spectrum, and the construction of their identities – guided by their adaptive processes on the ‘Turnerian’ frontier – were found to shape their business conduct, and interactions with labour forces and regional authorities. Negative prejudgment of the labour force existed amongst the investors – with associated negative notions of trust, inefficiency, laziness, morality, and sexual deviancy – and they were involved in explicit or ambiguous forms of gift-gifting, drawing parallels to Soviet blat behaviour. This paper concludes that despite efforts to construct identity, the narratives of the investors betrayed themselves in certain aspects, with elements of ‘undoing’ in the identity process.  相似文献   
68.
69.
Scotland’s future within the European Union (EU) played a prominent role in the 2014 independence referendum. The story goes that latent supporters of independence voted to stay within the UK to maintain EU access. Defeated, Scottish leaders declared the referendum a once-in-a-life-time event only repeated if conditions substantially changed. With the UK now facing a chaotic exit from the EU, proponents of Scottish independence have suggested that a second referendum may occur after Brexit negotiations are completed. Faced with a consensus among Scottish party leaders in supporting EU membership, those hoping for a second independence referendum, we argue, looked to alternate sources of information that saw Brexit as an opportunity to create the conditions that would spur a second referendum. Using panel data from the British Election Study, we examine whether Scottish voters voted tactically to leave the EU. We argue that Scottish National Party voters were likely to interpret statements on the conditions for a second independence referendum as an implicit signal to vote “Leave.” The results have important implications for the role of referendums in representative democracy, strategic voting, and the importance of intra-party division on individual vote choices.  相似文献   
70.
Since the mid-twentieth century, elite political behavior in the United States has become much more nationalized. In Congress, for example, within-party geographic cleavages have declined, roll-call voting has become more one-dimensional, and Democrats and Republicans have diverged along this main dimension of national partisan conflict. The existing literature finds that citizens have only weakly and belatedly mimicked elite trends. We show, however, that a different picture emerges if we focus not on individual citizens, but on the aggregate characteristics of geographic constituencies. Using biennial estimates of the economic, racial, and social policy liberalism of the average Democrat and Republican in each state over the past six decades, we demonstrate a surprisingly close correspondence between mass and elite trends. Specifically, we find that: (1) ideological divergence between Democrats and Republicans has widened dramatically within each domain, just as it has in Congress; (2) ideological variation across senators’ partisan subconstituencies is now explained almost completely by party rather than state, closely tracking trends in the Senate; and (3) economic, racial, and social liberalism have become highly correlated across partisan subconstituencies, just as they have across members of Congress. Overall, our findings contradict the reigning consensus that polarization in Congress has proceeded much more rapidly and extensively than polarization in the mass public.  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