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   1455篇
  免费   56篇
各国政治   59篇
工人农民   278篇
世界政治   117篇
外交国际关系   90篇
法律   639篇
中国政治   21篇
政治理论   295篇
综合类   12篇
  2023年   5篇
  2022年   5篇
  2021年   7篇
  2020年   26篇
  2019年   31篇
  2018年   48篇
  2017年   51篇
  2016年   47篇
  2015年   44篇
  2014年   48篇
  2013年   203篇
  2012年   33篇
  2011年   42篇
  2010年   40篇
  2009年   44篇
  2008年   49篇
  2007年   55篇
  2006年   42篇
  2005年   54篇
  2004年   66篇
  2003年   44篇
  2002年   49篇
  2001年   26篇
  2000年   28篇
  1999年   20篇
  1998年   14篇
  1997年   31篇
  1996年   34篇
  1995年   19篇
  1994年   26篇
  1993年   22篇
  1992年   30篇
  1991年   23篇
  1990年   18篇
  1989年   14篇
  1988年   15篇
  1987年   13篇
  1986年   22篇
  1985年   16篇
  1984年   10篇
  1983年   22篇
  1982年   14篇
  1981年   12篇
  1980年   7篇
  1979年   6篇
  1978年   7篇
  1977年   9篇
  1976年   6篇
  1974年   4篇
  1973年   3篇
排序方式: 共有1511条查询结果,搜索用时 15 毫秒
791.
To understand the effects of school safety practices and strategies on the school environment, researchers have consistently investigated the perceptions of students and various school personnel concerning school safety. Yet school social workers, professionals commonly employed in today’s schools to address the mental health needs of students, are often left out of the school safety discussion. Data were collected from 229 school social workers across the United States to examine: (a) school social workers’ perceptions regarding the effectiveness of various school safety strategies; (b) differences in these perceptions based on student- and school-level variables; and (c) comments from participants regarding school safety in U.S. schools. The purpose of this article is to provide timely implications concerning school safety from a unique and unstudied perspective.  相似文献   
792.
793.
From its very beginnings the European Union(EU) has taken an interest in that area of legal activity known as the conflict of laws or private international law. The purpose of the conflict of laws is to determine how a national court should behave when confronted with a legal dispute that involves a foreign element. A state's conflict rules will provide the answer to three basic questions: in what circumstances their courts may assume jurisdiction over cases involving a foreign element, what system of municipal law to apply (their own or that of some foreign legal system) and which foreign judgments are capable of recognition and enforcement within their national system. The very fact that the EU exists in order to bring states together to form a single internal market would seem likely to provoke conflict of laws situations. It, therefore, appears unremarkable that the EU has agreed a variety of measures with a bearing on the conflict of laws. The purpose of this article, however, is not to give a detailed account of the EU's interventions on this topic. Instead the intention is to offer some thoughts upon and to raise some questions regarding the implications of the EU's engagement with the conflict of laws. In particular this article aims to provide an overview of the direction in which the EU is taking the conflict of laws and how this has affected the focus and character of the subject in one Member State, namely the United Kingdom. This revised version was published online in August 2006 with corrections to the Cover Date.  相似文献   
794.
795.
We used data from a 601-family longitudinal study to estimate the separate and combined effects of three risk factors—parental psychiatric disorders (principally depression and substance abuse), supportive parent-child communications, and household income—on the development of deviant behavior in boys and girls aged 11–14. Using logistic response models, we concluded that having fewer than two supportive parents generally increases the risk of deviant behavior, but more so for boys than for girls. This effect is amplified when one or more parent(s) has a chronic mental disorder, but thecombination of fewer than two supportive parentsand one psychiatrically impaired parent has a particularly marked effect on girls. Moreover, older children's behavior is affected more dramatically by parental mental disorders, especially among girls; 13 to 14-year-old girls with both parental risk factors are virtually as deviant as male agemates with both risks. Each one of these effects is present regardless of family income level; however, net of these risks, household income is negatively associated with deviant behavior—a 10% increase in income is associated with a 1.3% decrease in adolescent deviance.  相似文献   
796.
797.
Integration projects often grow out of a particular institutional situation. This paper outlines some of the advantages as well as the pitfalls of our project. Although advocates of ‘integrationism’ and ‘autonomous Women's Studies’ have different definitions of transformation, these are not mutually exclusive.  相似文献   
798.
799.
800.
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