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   11893篇
  免费   227篇
  国内免费   2篇
管理学   1624篇
民族学   71篇
人才学   3篇
人口学   1035篇
丛书文集   76篇
理论方法论   1179篇
综合类   228篇
社会学   6147篇
统计学   1759篇
  2021年   63篇
  2020年   178篇
  2019年   280篇
  2018年   288篇
  2017年   419篇
  2016年   296篇
  2015年   218篇
  2014年   281篇
  2013年   1930篇
  2012年   397篇
  2011年   376篇
  2010年   310篇
  2009年   292篇
  2008年   286篇
  2007年   334篇
  2006年   302篇
  2005年   306篇
  2004年   292篇
  2003年   210篇
  2002年   241篇
  2001年   304篇
  2000年   251篇
  1999年   231篇
  1998年   182篇
  1997年   170篇
  1996年   175篇
  1995年   155篇
  1994年   158篇
  1993年   160篇
  1992年   161篇
  1991年   163篇
  1990年   165篇
  1989年   152篇
  1988年   145篇
  1987年   158篇
  1986年   130篇
  1985年   157篇
  1984年   167篇
  1983年   154篇
  1982年   132篇
  1981年   94篇
  1980年   116篇
  1979年   120篇
  1978年   106篇
  1977年   88篇
  1976年   91篇
  1975年   102篇
  1974年   96篇
  1973年   70篇
  1972年   61篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
831.
This paper discusses recovery of information regarding logistic regression parameters in cases when maximum likelihood estimates of some parameters are infinite. An algorithm for detecting such cases and characterizing the divergence of the parameter estimates is presented. A method for fitting the remaining parameters is also presented . All of these methods rely only on sufficient statistics rather than less aggregated quantities, as required for inference according to the method of Kolassa & Tanner (1994). These results are applied to approximate conditional inference via saddlepoint methods. Specifically, the double saddlepoint method of Skovgaard (1987) is adapted to the case when the solution to the saddlepoint equations exists as a point at infinity  相似文献   
832.
In this paper we analyse the shift of family related policies (benefits, daycare services and labour market policies) from the state-socialist model toward re-familisation in the Czech Republic after 1989. We demonstrate that the policies negatively influence the possibilities for parents—and especially mothers—to balance work and family life. We concentrate on the question of why the government implemented such policies, despite their negative consequences. Our analysis indicates that the communist ideological legacy (disadvantageous conditions for ideology of feminism, poor experiences with the quality of daycare) and the communist economic legacy (pressures on the public budget) have played a major role in shaping post-communist family policies. Our analysis also indicates that this legacy may be beginning to break down as the policies of re-familisation are coming into conflict with the needs and aspirations of the population and policy makers become more and more forced to confront the fertility problem.  相似文献   
833.
834.
835.
I discuss the recent proliferation of mandatory project labor agreements in government procurement, some of the ensuing litigation, and the effects of such agreements on contractors, workers, and the public.  相似文献   
836.
837.
Churches must realize that the management of their human resources is critical. The U.S. Catholic Church in recent years has been this problem take on even more significance with the apparent shortage of priests. This article considers this problem in light of a relatively new methodology, data envelopment analysis, which compares organizations to comparable best-practice units. The authors conclude that the Church would benefit from a better distribution of priests, both within and across dioceses. They also conclude that the use of deacons and priestless parishes can be effective in some circumstances.  相似文献   
838.
 A political–economic environment is studied in which two parties, representing different constituencies of citizens, compete over a proportional tax rate to be levied on private endowments, to finance a public good. Although parties know the distribution of citizen traits (preferences and endowments), they are uncertain about the distribution of traits among the citizens who will turn up at the polls. This uncertainty engenders an endogenously derived function π(t 1, t 2) giving the probability that any one tax policy t 1 will defeat another t 2 in the election. Equilibrium existence theorems are proved, and the nature of equilibrium is compared with the equilibrium that exists when Downsian parties (ones whose objective is to maximize the probability of victory) face uncertainty. Both constituency-representing parties and uncertainty are needed to generate equilibria in which parties propose different policies. Received: 4 April 1995/Accepted: 2 April 1996  相似文献   
839.
Results from analysis of 227,771 discharge abstracts from 68 short-term, acute-care hospitals and from interviews with a stratified random selection of 24 of the 68 chief executives of these hospitals demonstrate that institutions perceive implementation of DRGs as fiscally constraining, especially in light of other resource-constraining conditions (an increase in unemployment resulting in fewer people with hospitalization insurance, in addition to severe cuts in Medicaid rolls and budget). Hospitals responded to DRGs by decreasing the use of affected resources or services available to the hospitalized Medicare patient. In order to survive a more economically stringent marketplace, hospitals no longer protected the traditional core within the Medicare inpatient market. They opted instead to change practices and products at the unregulated margins of the DRG system.  相似文献   
840.
This paper draws on recent studies of colonial science and of the social function of science in the underdeveloped world to analyse the social development of science in Ireland and, subsequently, the Irish Republic. It is suggested that after the Act of Union scientific activity in Ireland became prized as a cultural practice, largely isolated from its local context and potential local applications. Because of governmentá priorities in the new state and because of the Anglo-Irish character of much of the scientific culture, this isolation persisted after Partition. The recent history of science in the Irish Republic is interpreted in terms of this isolation or marginality.  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