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   7089篇
  免费   476篇
各国政治   333篇
工人农民   221篇
世界政治   462篇
外交国际关系   231篇
法律   5003篇
中国政治   34篇
政治理论   1246篇
综合类   35篇
  2020年   156篇
  2019年   166篇
  2018年   176篇
  2017年   207篇
  2016年   210篇
  2015年   196篇
  2014年   179篇
  2013年   735篇
  2012年   154篇
  2011年   167篇
  2010年   205篇
  2009年   222篇
  2008年   162篇
  2007年   157篇
  2006年   166篇
  2005年   158篇
  2004年   176篇
  2003年   156篇
  2002年   137篇
  2001年   309篇
  2000年   250篇
  1999年   225篇
  1998年   97篇
  1997年   64篇
  1996年   69篇
  1995年   79篇
  1994年   86篇
  1993年   87篇
  1992年   151篇
  1991年   156篇
  1990年   145篇
  1989年   155篇
  1988年   122篇
  1987年   137篇
  1986年   124篇
  1985年   132篇
  1984年   101篇
  1983年   116篇
  1982年   82篇
  1981年   78篇
  1980年   55篇
  1979年   108篇
  1978年   69篇
  1977年   58篇
  1976年   50篇
  1975年   47篇
  1974年   55篇
  1973年   55篇
  1972年   44篇
  1968年   40篇
排序方式: 共有7565条查询结果,搜索用时 31 毫秒
301.
302.
303.
Manufacturing plant closure has been the subject of much national concern, and an extensive literature principally focused on the developed world. This study extends the findings on plant closure with an analysis of export-oriented manufacturers (maquiladoras) in Mexico, 1996–2006. The foci of this research are hypothesised variables of maquiladora closure: product manufactured (value-added), size of plant, plant location, and size of urban place. The results of a logistical regression model indicate that plant size and value-added are highly probable determinants of plant closure; large, high value-added product maquiladoras have low rates of plant closure. Maquiladoras manufacturing low value-added products have high rates of closure; however, these manufacturers also have significant numbers of surviving plants. This suggests that multiple manufacturing platforms are viable among Mexico’s export-oriented industry. The findings also suggest that much plant closure is a result of exogenous factors,exiting plants in a global search for cheap labour. Mexico, however, has a geographic comparative advantage that, for many maquiladoras, trumps wages in more distant locations.  相似文献   
304.
305.
306.
307.
308.
Aerial bombardment has been an important component of counterinsurgency practice since shortly after it became a viable military technology in the early twentieth century. Due to the nature of insurgency, bombing frequently occurs in and around settled areas, and consequently it tends to generate many civilian casualties. However, the effectiveness of bombing civilian areas as a military tactic remains disputed. Using data disaggregated to the level of the smallest population unit and measured at multiple points in time, this article examines the effect of aerial bombardment on the pattern of local control in the Vietnam War. A variety of estimation methods, including instrumental variables and genetic matching, show that bombing civilians systematically shifted control in favor of the Viet Cong insurgents.  相似文献   
309.
Two challenges stand out in the study of deliberation: the development of appropriate methodological tools and the development of more unified analytical frameworks. On the one hand, analysing deliberative processes is demanding and time‐consuming; hence we tend to have only few and non‐randomly selected cases at the group or context level. In addition, the real world of deliberation presents us with a complex matrix of nested, cross‐classified, and repeated speakers. This article shows that Bayesian multi‐level modelling provides an elegant way to tackle these methodological problems. On the other hand, we attempt to enrich comparative institutionalism with individual characteristics and psychologically relevant variables (such as group composition). Focusing on Swiss and German parliamentary debates we show that institutional factors ‐ in particular, consensus systems ‐, the gender composition of committees and plenary sessions, and age matter for the quality of deliberation. Furthermore, we also show that partisan affiliation ‐ government or opposition status of MPs ‐ affects deliberative quality and can refine institutional arguments. We conclude that a multi‐level approach to deliberation focusing on contextual and actor‐related characteristics and using Bayesian hierarchical modelling paves the way toward a more advanced understanding ‐ and methodological handling ‐ of deliberative processes.  相似文献   
310.
The transition to high school has been identified as a potentially difficult time in adolescents’ lives. Reductions in both academic and social functioning often accompany this transition. While these effects have been documented in urban youth, the move to high school has not been extensively studied in rural minority youth. Toward that end, the academic grades and substance use in ninth grade of 447 (184 male and 263 female) African-American adolescents from two rural counties in a state in the deep South were examined in relation to configurations of adaptation from sixth through eighth grade. Results indicate that individual with consistently positive patterns across middle school had higher grades and lower rates of substance use compared to individuals with persistent difficulties or those that transitioned to problem behavior. Many individuals who improved in their patterns of adaptation had relatively high grades, but also rather high rates of substance use in the ninth grade. David B. Estell is an assistant professor of educational psychology at Indiana University Bloomington. He received his PhD in Developmental Psychology from the University of North Carolina at Chapel Hill. His major research interests include peer relations and the development of aggression. Thomas W. Farmer is an associate professor of education at Pennsylvania State University and director of the National Research Center on Rural Education Support. He received his PhD in Special Education from University of North Carolina at Chapel Hill. His major research interests include peer relations and the development of aggression in students with and without special needs. Matthew J. Irvin is a research scientist at the Center for Developmental Science at the University of North Carolina at Chapel Hill. He received his PhD in Educational Psychology from the University of North Carolina at Chapel Hill. His major research interests include resilience and student engagement. Jana H. Thompson is a research associate at the Center for Developmental Science at the University of North Carolina at Chapel Hill. Her research interests include peer social relations and developmental transitions into early adolescence. Bryan C. Hutchins is a research assistant at the Center for Developmental Science at the University of North Carolina at Chapel Hill. He is also a graduate student in the Educational Psychology, Measurement, and Evaluation Program at UNC. His research interests include child and adolescent social development and school based emotional and behavioral interventions and prevention programs. Erin M. McDonough is currently a doctoral candidate in School Psychology at the University of North Carolina at Chapel Hill. She received her Bachelor of Arts degree in Psychology from Emory University. As a research assistant at the Center for Developmental Science, she has been able to explore her interests in student achievement as well as rural education. Another major research interest of hers is school-based mental health.  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