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   1546篇
  免费   69篇
各国政治   58篇
工人农民   232篇
世界政治   166篇
外交国际关系   59篇
法律   726篇
中国政治   19篇
政治理论   344篇
综合类   11篇
  2023年   13篇
  2021年   10篇
  2020年   25篇
  2019年   37篇
  2018年   48篇
  2017年   58篇
  2016年   43篇
  2015年   37篇
  2014年   38篇
  2013年   198篇
  2012年   69篇
  2011年   64篇
  2010年   40篇
  2009年   43篇
  2008年   77篇
  2007年   78篇
  2006年   76篇
  2005年   65篇
  2004年   50篇
  2003年   57篇
  2002年   56篇
  2001年   27篇
  2000年   28篇
  1999年   17篇
  1998年   14篇
  1997年   18篇
  1996年   19篇
  1995年   22篇
  1994年   18篇
  1993年   17篇
  1992年   21篇
  1991年   23篇
  1990年   16篇
  1989年   14篇
  1988年   18篇
  1987年   14篇
  1986年   11篇
  1985年   20篇
  1984年   11篇
  1983年   7篇
  1982年   19篇
  1981年   10篇
  1980年   11篇
  1979年   11篇
  1978年   8篇
  1977年   8篇
  1976年   6篇
  1975年   5篇
  1974年   5篇
  1973年   4篇
排序方式: 共有1615条查询结果,搜索用时 15 毫秒
991.
This paper focuses on agenda change affecting the politics of ??fracking operations?? in the US, a process of extracting natural gas from underground shale formations. We examine how the movement of this policy issue between the state and federal levels of government has become increasingly contentious because of rising public concern about pollution impacts. Using information obtained from documentary sources and media content analysis, we found that the natural gas policy coalition has largely focused on a political strategy based on maintaining fracking regulatory controls at the state level, while the environmental policy coalition has pushed for increased regulation of drilling practices in general, including a larger policy and oversight role for federal agencies such as EPA.  相似文献   
992.
Although research‐extensive universities in the United States produce similar outcomes—research, teaching, and service—they vary substantially in terms of the publicness of their environments. In this article, the authors adopt a public values framework to examine how regulative, normative/associative, and cultural cognitive components affect realized public outcomes by faculty. Using survey data from a random sample of faculty scientists in six fields of science and engineering at Carnegie Research I universities, findings show that organizational and individual public values components are associated predictably with different realized individual public outcomes. For example, individual support from federal resources and affiliation with a federal lab (associative) are related to increased research outcomes, while tuition and fee levels (regulative) explain teaching outcomes, and perceived level of influence in the workplace (cultural cognitive) explains teaching and service outcomes.  相似文献   
993.
994.
995.
The New York Society for the Prevention of Cruelty to Children (NYSPCC) has provided a supervised visitation program (SVP) for high‐risk families for almost two decades. Parents needing supervised visitation often have histories of domestic violence, child abuse and neglect, mental illness or substance abuse, therefore providers delivering services must be adequately trained and supervised in order to protect the child from further harm during the visitation process. This article describes the need for SVP's, parental issues warranting consideration, the special needs of children in these circumstances, policy recommendations for provider standards, and a certification process to be developed and adopted in New York State.  相似文献   
996.
997.
998.
Journal of Family Violence - To assess the relationship between stress throughout the day and aggressive discipline practices by parents during COVID-19 stay at home orders. For this study,...  相似文献   
999.
Following are excerpts from an April 20, 1999, conference convened by the Middle East Policy Council. The papers these presentations are drawn from will be published as a book, forthcoming in 1999.  相似文献   
1000.
A large proportion of perinatally HIV-infected (PHIV) children are becoming adolescents and exploring their sexuality. This study explored the prevalence of sexual behaviors (kissing, touching, engaging in oral sex, or having vaginal/anal intercourse) in a sample of predominantly ethnic minority youths (N = 339; 54.1% Black and 30.4% Latino; 51% female; ages 9–16) perinatally exposed to HIV (61% HIV+). Using logistic regression, we tested the association between sexual behavior and HIV status, demographic characteristics, and peer influences regarding sexual behavior. PHIV youth were less likely to be sexually active. Among sexually active youth, PHIV youth were more likely to engage in touching behavior than HIV-negative youth and were less likely to engage in penetrative sex. Youths reporting that a greater number of their peers believed that sexually active boys were “cool” or “popular” were more likely to report sexual behavior. The association between sexual behavior and peers believing sexually active girls were “cool” or “popular” varied by age, gender, and HIV status. Furthermore, friends’ sexual activity was associated with sexual intercourse. Prevention programs should strengthen messages addressing peer norms regarding sexuality, as well as address specific issues related to adolescent HIV.
Claude Ann MellinsEmail:
  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