全文获取类型
收费全文 | 3842篇 |
免费 | 67篇 |
专业分类
各国政治 | 113篇 |
工人农民 | 129篇 |
世界政治 | 173篇 |
外交国际关系 | 116篇 |
法律 | 2865篇 |
中国政治 | 22篇 |
政治理论 | 451篇 |
综合类 | 40篇 |
出版年
2020年 | 40篇 |
2019年 | 38篇 |
2018年 | 67篇 |
2017年 | 54篇 |
2016年 | 71篇 |
2015年 | 39篇 |
2014年 | 56篇 |
2013年 | 298篇 |
2012年 | 96篇 |
2011年 | 144篇 |
2010年 | 92篇 |
2009年 | 69篇 |
2008年 | 129篇 |
2007年 | 133篇 |
2006年 | 117篇 |
2005年 | 102篇 |
2004年 | 128篇 |
2003年 | 122篇 |
2002年 | 117篇 |
2001年 | 159篇 |
2000年 | 147篇 |
1999年 | 107篇 |
1998年 | 32篇 |
1997年 | 24篇 |
1995年 | 22篇 |
1993年 | 34篇 |
1992年 | 69篇 |
1991年 | 89篇 |
1990年 | 93篇 |
1989年 | 94篇 |
1988年 | 100篇 |
1987年 | 95篇 |
1986年 | 82篇 |
1985年 | 88篇 |
1984年 | 70篇 |
1983年 | 61篇 |
1982年 | 33篇 |
1981年 | 26篇 |
1979年 | 32篇 |
1978年 | 35篇 |
1977年 | 23篇 |
1976年 | 32篇 |
1975年 | 31篇 |
1974年 | 37篇 |
1973年 | 41篇 |
1972年 | 37篇 |
1971年 | 40篇 |
1970年 | 40篇 |
1969年 | 34篇 |
1968年 | 29篇 |
排序方式: 共有3909条查询结果,搜索用时 0 毫秒
81.
AbstractWe contribute to the debate on the spatial allocation of infrastructure investments by examining where these investments generate the highest economic return (‘spatial efficiency’), and identifying trade-offs when infrastructure coverage is made more equitable across regions (‘spatial equity’). We estimate models of firm location choice in Uganda, drawing on insights from the new economic geography literature. The main findings show that manufacturing firms gain from being in areas that offer a diverse mix of economic activities. Public infrastructure investments in other locations are likely to attract fewer private investors, and will pose a spatial efficiency–equity trade-off. 相似文献
82.
83.
Susanne V. Knudsen 《Nora, Nordic Journal of Women's Studies》2013,21(2):102-112
Gender awareness and gender neutrality are discussed with the aid of post‐structuralist gender theories concerning paradoxes and aporias. Via paradox thinking, women's, men's and gender studies are challenged to develop perspectives on gender that are both thought and not thought, said and not said, done and not done. Paradoxes are understood as aporias, in which the researcher gets into “stuck places”. Gender dualism is put to the test as a fundamental concept. Various theories of power, such as patriarchy theories, theories of hegemonic power, and gender and queer‐theories of symbolic and discursive power are associated with gender paradoxes and gender dualism. Examples are included from the author's own research in school and gender studies. 相似文献
84.
Hafen CA Allen JP Mikami AY Gregory A Hamre B Pianta RC 《Journal of youth and adolescence》2012,41(3):245-255
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
85.
86.
87.
This study seeks to explain why U.S. local governments utilize environmental sustainability to promote economic development. Economic development and environmental protection need not be competing objectives, but rather, environmental protection can enhance local economic competitiveness. Using data from the ICMA Economic Development Survey, this study tests an empirical model that includes state sustainability initiatives, participation in climate protection networks, and political attitudes toward economic development as predictors of local policy decisions. The findings reinforce a multi-level governance perspective on explaining the balance cities seek to achieve between environmental protection and economic growth. 相似文献
88.
89.
The media allow crime to infiltrate the public’s consciousness in every conceivable way, thereby playing a major role in shaping the public’s opinion and attitude toward crime and crime issues (Barak, 1995; Fields & Jerin, 1996; Kappeler & Potter, 2005). Reporters constantly talk about crime, and crime related stories dominate the headlines of local and national newspaper outlets (Dowler, 2003; Pizarro et al, 2007). Some of the most highly rated television programs are based on crime plots and people across social, political, and racial demographics are constantly engaged in crime dialogue generated from local or national news stories. When the focus of these mediums is on youth they become even more profound and contentious. The images portrayed conjure up stereotypes that lead to fear and inflammatory remarks that become entrenched into the national lexicon. The current study uses data from the National Opinion Survey of Crime and Justice to test the relationship between crime-related media viewership and fear of victimization within a nationally representative adult sample. Approximately 42.67% of respondents reported regularly watching crime shows and about the same proportion (42.83%) believed their local media paid too much attention to violent crime. In addition to regular crime-show viewership, confidence in the police, gender, and recent contact with the police were associated with fear of victimization. This article adds to an existing body of research through a largely unexplored area in the administration of justice. It does so within the context of the U.S. juvenile justice system. 相似文献
90.
The New Zealand Government's Performance Improvement Framework (PIF) is aimed at public sector organisational improvement. The PIF exemplifies how the characteristics of new public management (NPM) challenge the evolution of performance systems attempting to go beyond performance management. The paper provides an empirical example of the operation of the PIF, using a theoretical frame derived from the literature. The analysis suggests that the PIF design does not yet mitigate the effects of gaming, synecdoche, and reputation-protecting behaviour. The common graded ratings continue to hold the attention of those to whom the PIF is important, acting as a proxy for the whole performance of the organisation. This is a case study of how, despite promising adaptations, performance improvement efforts remain hampered by NPM limitations. 相似文献