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   88839篇
  免费   1975篇
  国内免费   3篇
管理学   12168篇
民族学   538篇
人才学   26篇
人口学   6551篇
丛书文集   504篇
理论方法论   9393篇
综合类   2062篇
社会学   40807篇
统计学   18768篇
  2023年   519篇
  2021年   566篇
  2020年   1515篇
  2019年   2225篇
  2018年   2023篇
  2017年   3108篇
  2016年   2358篇
  2015年   2073篇
  2014年   2649篇
  2013年   18983篇
  2012年   2234篇
  2011年   2021篇
  2010年   1907篇
  2009年   2180篇
  2008年   1968篇
  2007年   1789篇
  2006年   2052篇
  2005年   2228篇
  2004年   2112篇
  2003年   1846篇
  2002年   1933篇
  2001年   1897篇
  2000年   1682篇
  1999年   1606篇
  1998年   1467篇
  1997年   1300篇
  1996年   1268篇
  1995年   1291篇
  1994年   1264篇
  1993年   1239篇
  1992年   1208篇
  1991年   1130篇
  1990年   1112篇
  1989年   953篇
  1988年   1053篇
  1987年   926篇
  1986年   821篇
  1985年   995篇
  1984年   1070篇
  1983年   951篇
  1982年   897篇
  1981年   828篇
  1980年   786篇
  1979年   831篇
  1978年   738篇
  1977年   665篇
  1976年   625篇
  1975年   601篇
  1974年   488篇
  1973年   408篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
191.
This paper focuses upon an as yet under-explored factor believed to underlie most managerial and organizational behavior variables—work ideology. Work ideologies are surveyed for several convenience samples of students and managers to show their ability to be studied and that patterned differences may be discovered. In addition, the historical origins and meanings of four major work ideologies are discussed.  相似文献   
192.
The fitting of a straight line that must pass through (0, 0) is a frequently encountered application of linear regression. Many computer packages provide a least-squares option sometimes identified as NO INT, or even NOINT, or as ‘suppressing the intercept’. Often these procedures are invalid or do not correspond to the most suitable model. This paper questions the least-squares-line approach and suggests some alternatives. Two measures are proposed for comparing the fit of alternative models.  相似文献   
193.
194.
One hundred and sixty-four elite union leaders in the United States completed a survey to assess the condition of the American labor movement and the factors affecting it. The respondents included high-level international union and state federation officers, central labor presidents, and 58 shop stewards. This study compares the responses of these labor officials and finds that they have similar, negative assessments of the condition of the American labor movement. The study also finds that these leaders agree that the most important factors affecting the labor movement are collective bargaining rights, union leadership, union member solidarity, and the NLRB.  相似文献   
195.
196.
The more things change, the worse they get.Presented April 18, 1991, Duke University, at the Department of Psychiatry's Grand Rounds, this paper condenses, integrates and updates the author's earlier publication. Acknowledgement and thanks for funding and professional sponsorship of the four research studies this paper draws from are selectively due to the Eugene and Agnes E. Meyer Foundation, the Edgar Stern Family Fund, The National Institute for Mental Health, the Baltimore-Washington Institute for Psychoanalysis and the Department of Psychiatry, Children's Hospital National Medical Center.  相似文献   
197.
198.
Firms facing research costs and demand uncertainty may engage in second-sourcing, in which potential suppliers agree to pool production facilities. I show how sellers and buyers both can benefit from the practice. Second-sourcing allows firms to meet a wider range of possible rates of demand and often to supply a given rate of demand at a lower total cost than under non-cooperation. Buyers benefit through a reduced probability of stock-outs and frequently a lower purchase price. Semiconductor industry data are found to be consistent with the paper's predictions.  相似文献   
199.
This paper is concerned with how standard estimation procedures perform in terms of eficiency for non-normal rounded data. Previous research has shown that the loss in eficiency due to rounding normal data is small. However, evidence from the non-normal distribution considered in this paper suggests, if rounding is coarse or the distribution is very skewed the loss in efficiency due to rounding can be considerable.  相似文献   
200.
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