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   2940篇
  免费   125篇
各国政治   201篇
工人农民   157篇
世界政治   278篇
外交国际关系   149篇
法律   1402篇
中国政治   63篇
政治理论   790篇
综合类   25篇
  2023年   16篇
  2022年   9篇
  2021年   28篇
  2020年   66篇
  2019年   80篇
  2018年   101篇
  2017年   119篇
  2016年   105篇
  2015年   73篇
  2014年   103篇
  2013年   462篇
  2012年   94篇
  2011年   115篇
  2010年   75篇
  2009年   97篇
  2008年   86篇
  2007年   101篇
  2006年   102篇
  2005年   101篇
  2004年   88篇
  2003年   104篇
  2002年   96篇
  2001年   50篇
  2000年   61篇
  1999年   50篇
  1998年   49篇
  1997年   46篇
  1996年   41篇
  1995年   50篇
  1994年   45篇
  1993年   32篇
  1992年   30篇
  1991年   28篇
  1990年   38篇
  1989年   23篇
  1988年   33篇
  1987年   25篇
  1986年   20篇
  1985年   31篇
  1984年   27篇
  1983年   22篇
  1982年   23篇
  1981年   15篇
  1980年   14篇
  1979年   8篇
  1978年   9篇
  1977年   9篇
  1976年   17篇
  1975年   8篇
  1970年   6篇
排序方式: 共有3065条查询结果,搜索用时 15 毫秒
141.
Despite widespread adoption of Porter's Industrial Cluster Theory as a policy development framework by federal and state governments over the past decade, Australia remains significantly below the OECD average in terms of its industries' economic contributions to real wealth creation ( Brown 2000 ; OECD 1998 ). The major cause cited for this relatively poor performance has been inability of key government officials to implement effective industry policy that simultaneously avoids de facto protectionism and distortion of competition. This article provides an insight into the key policy decisions undertaken by the Tasmanian state government that coincided with development of an internationally successful shipbuilding industry in that state. As such, this article provides a reflection on policy initiatives that may be valuable for government officials elsewhere.  相似文献   
142.
143.
This paper uses anecdotal evidence to identify a group of firms that had significant ties to President Lyndon Johnson and determines the effect of Johnson's unexpected rise to the Presidency on the market value of these firms. The unexpected nature of President Kennedy's death eliminates the confounding event problem typically associated with election results. We are able to identify four separate portfolios of firms that had political ties to Lyndon Johnson. Our research suggests that the market expected significant benefits to accrue to these firms as a result of Johnson's becoming President. When Catholic John Kennedy and Johnson were running together in 1960 a joke hop-scotched around the parties in Texas and Washington that Kennedy had told Johnson, “Lyndon, when we get elected I'm going to dig a tunnel to the Vatican,” and Lyndon had replied, “That's OK with me as long as Brown & Root gets the contract” (Dugger, 1982: 286).  相似文献   
144.
145.
Brown  Gordon R. 《Publius》1994,24(1):21-38
It is often claimed that overlapping government activity inCanada's federal system causes significant government inefficiency.The three major studies on the subject have demonstrated theexistence of extensive overlap, but they resort to qualitativearguments and anecdotal evidence to conclude either that overlapcauses significant government inefficiency (the traditionalprovincial position) or that overlap is fairly well managed(the traditional federal position). Thus, the debate about overlapremains essentially a debate about federal and provincial power,not about efficiency. This is apparently unavoidable, due tothe difficulty of measuring the effect of overlap on efficiency.  相似文献   
146.
147.
148.
149.
The interrelationships of depression and suicide with adolescent drug use, delinquency, eating disorders, and the risk factors for these different problems were investigated among 597 9th and 11th graders in an urban high school. There is a strong association of drug use with suicidal ideation among girls, and a stronger relationship with attempts among girls and boys. Suicidal youths are ill-adjusted and display a lack of attachment and commitment to family and school. Causal models indicate that poor interpersonal interactions with parents, absence of peer interactions, and life events lead to depression, which in turn leads to suicidal ideation. Depressive symptoms are the strongest predictors of suicidal ideation. Among females, depression predicts drug involvement, and in turn, drug use increases suicidal ideation. Drug use is only one class of problem behaviors that constitutes a risk factor for suicidal behavior in adolescence. Delinquency and eating disorders also have direct effects on suicidal ideation beyond those of depressive affect. As for drug involvement, these problem behaviors are more predictive of suicidal behavior among girls than boys. Similarity and specificity of the predictors for problem behaviors within and between the sexes are discussed. Although young women use drugs to handle feelings of depression, drug use appears ineffective in the long run in relieving these depressive feelings. Understanding the dynamics of suicidal ideation in adolescence has important public health implications, since ideation is a strong predictor of attempts, especially among females.Revised version of a presentation at the Workshop on Adolescent Depression, Princeton, NJ, June 3, 1987.Work on this research has been partially supported by Research Grants DA00064, DA01097, DA03196, and DA02867, and by Research Scientist Award DA00081 from the National Institute on Drug Abuse; and awards from the John D. and Catherine MacArthur Foundation and the Research Foundation for Mental Hygiene, New York State Psychiatric Institute. Partial support for computer costs was provided by Mental Health Clinical Research Center Grant MH30906-07 from NIMH to the New York State Psychiatric Institute.Received Ph.D. in Sociology from Columbia University. Research interests include adolescent psychosocial development, epidemiology and risk factors for drug use, and interpersonal networks.Work on this research was carried out while a Research Associate at the School of Public Health, Columbia University. Received Ph.D. in Sociology from Columbia University. Research interests include personal networks and social support systems in chronic illness, societal factors in mental health, psychosocial consequences of drug use and abuse, panel mortality, and survey methodology.Received M.P.H. from Columbia University. Research interests include reliability and child psychiatry.  相似文献   
150.
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