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   3546篇
  免费   63篇
各国政治   107篇
工人农民   106篇
世界政治   153篇
外交国际关系   104篇
法律   2717篇
中国政治   18篇
政治理论   367篇
综合类   37篇
  2020年   36篇
  2019年   37篇
  2018年   61篇
  2017年   46篇
  2016年   64篇
  2015年   32篇
  2014年   53篇
  2013年   255篇
  2012年   88篇
  2011年   137篇
  2010年   81篇
  2009年   61篇
  2008年   113篇
  2007年   123篇
  2006年   111篇
  2005年   89篇
  2004年   126篇
  2003年   116篇
  2002年   109篇
  2001年   153篇
  2000年   135篇
  1999年   106篇
  1998年   21篇
  1996年   19篇
  1995年   20篇
  1993年   30篇
  1992年   64篇
  1991年   84篇
  1990年   85篇
  1989年   91篇
  1988年   95篇
  1987年   89篇
  1986年   75篇
  1985年   83篇
  1984年   70篇
  1983年   62篇
  1982年   25篇
  1981年   21篇
  1979年   31篇
  1978年   34篇
  1977年   23篇
  1976年   31篇
  1975年   28篇
  1974年   37篇
  1973年   39篇
  1972年   36篇
  1971年   38篇
  1970年   40篇
  1969年   32篇
  1968年   27篇
排序方式: 共有3609条查询结果,搜索用时 328 毫秒
91.
Portrayals of China's bureaucratic behavior tend to emphasize either streamlined central control via top‐down directives emanating from a Leninist system, or a highly fragmented organization characterized by continuous horizontal bargaining. While both views have merit, they miss important but little‐recognized dynamics of Chinese bureaucratic behavior. Examination of the 30‐year evolution of a single organization, China's 863 Program, allows us a unique look inside the “black box” of decision making. First, we highlight a largely unrecognized mechanism of top‐down control: a signal‐response process that fosters substantial uncertainty for officials in the system. Second, our case highlights a circumstance in which reformers made radical moves—deployed as a “band‐aid” layer of rational‐instrumentalism—to meet a perceived external security threat. These moves demonstrate efforts to incorporate Weberian norms, and suggest sources of dynamism and learning in a “hybrid adaptive” bureaucracy.  相似文献   
92.
Certified aircraft mechanics represent the largest gender-based demographic disparity in aviation with a 49-to-1 male-to-female ratio. Recent research into women’s perspective on the aircraft mechanic career field revealed that a large majority of women felt unsure or negatively about their potential promotion opportunities and social acceptance. The purpose of this follow-on mixed-methods concurrent triangulation study was to explore the perspectives of men regarding the aforementioned topics to see if they differ from previously published research on women perceptions. A total of 587 men and 431 women completed an eight-question survey containing 5-point Likert-type and open-ended questions. The quantitative comparison consisted of the total 1018 responses, while only the survey responses from the 587 men were analysed for correlations and qualitative codes. Results indicated that there was a significant difference between the perceptions of men from those of the women regarding work environment safety and social acceptance. Additional correlation analysis revealed social acceptance to be a key variable when predicting career appropriateness, advancement opportunity and work environment safety. The 587 qualitative responses yielded results that differed from those of women, citing an assumption that women have the same advancement opportunities or be as socially accepted as men entering the field.  相似文献   
93.
Document examiners sometimes eliminate writers on the basis of differences which are given too much weight. This article is an attempt to explain some conditions whereby differences in the writing of one individual are misinterpreted as significant differences, when they are actually caused by conditions which are unknown to the examiner.  相似文献   
94.
A method for the routine profiling of illicit heroin samples received in casework has been developed which depends on simple and straightforward sample pretreatment, followed by gas chromatography on a capillary column using flame-ionization detection. The factors affecting the choice of each aspect of the procedure are discussed, as are the statistical data for sampling and the chromatography. Components of illicit heroin derived from opium and other adulterants have been identified. The significance of data from samples examined in 1986 is discussed.  相似文献   
95.
96.
Abstract

We 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   
97.
98.
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   
99.
100.
Existing research suggests that sexual minority youth experience lower levels of well-being, in part because they perceive less social support than heterosexual youth. Sexual minority youth with strong family relationships may demonstrate resilience and increased well-being; however, it is also possible that the experience of sexual stigma may make these relationships less protective for sexual minority youth. Using two waves of data from the National Longitudinal Study of Adolescent Health, we explore the links between same-sex attraction, family relationships, and adolescent well-being in a sample of over 13,000 7th–12th grade adolescents (51 % female, 52 % non-Latino/a white, 17 % Latino, 21 % African American, and 7 % Asian). Specifically, we examine whether lower levels of parental closeness, parental involvement, and family support among same-sex attracted youth explain in part why these youth experience increased depressive symptoms and risk behaviors, including binge drinking, illegal drug use, and running away from home, relative to other-sex attracted youth. Second, we ask whether family relationships are equally protective against depressive symptoms and risk behaviors for same-sex attracted and other-sex attracted youth. We find that same-sex attracted youth, particularly girls, report higher levels of depressive symptoms, binge drinking, and drug use in part because they perceive less closeness with parents and less support from their families. Results also suggest that parental closeness and parental involvement may be less protective against risk behaviors for same-sex attracted boys than for their other-sex attracted peers. Findings thus suggest that interventions targeting the families of sexual minority youth should educate parents about the potentially negative effects of heteronormative assumptions and attitudes on positive adolescent development.  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