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   93903篇
  免费   1997篇
  国内免费   18篇
管理学   12654篇
民族学   558篇
人才学   25篇
人口学   7235篇
丛书文集   609篇
理论方法论   9532篇
综合类   2735篇
社会学   43487篇
统计学   19083篇
  2023年   519篇
  2021年   584篇
  2020年   1535篇
  2019年   2229篇
  2018年   2156篇
  2017年   3237篇
  2016年   2429篇
  2015年   2073篇
  2014年   2674篇
  2013年   18978篇
  2012年   2562篇
  2011年   2375篇
  2010年   2118篇
  2009年   2275篇
  2008年   2188篇
  2007年   2038篇
  2006年   2239篇
  2005年   2394篇
  2004年   2207篇
  2003年   1924篇
  2002年   2041篇
  2001年   2059篇
  2000年   1835篇
  1999年   1731篇
  1998年   1517篇
  1997年   1356篇
  1996年   1319篇
  1995年   1349篇
  1994年   1313篇
  1993年   1296篇
  1992年   1312篇
  1991年   1242篇
  1990年   1215篇
  1989年   1082篇
  1988年   1149篇
  1987年   1025篇
  1986年   938篇
  1985年   1108篇
  1984年   1160篇
  1983年   1043篇
  1982年   959篇
  1981年   887篇
  1980年   824篇
  1979年   890篇
  1978年   786篇
  1977年   704篇
  1976年   674篇
  1975年   651篇
  1974年   538篇
  1973年   448篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
New Products are the life blood of a growing company, but traditional methods of introducing new products are no longer adequate. Du Pont is using a new approach called Venture Management. A New Venture Development provides an ideal environment for making and carrying out decisions involved in introducing new technological developments. It combines the advantages in mobility and communications enjoyed by a small venture-orientated company with the strong technical and financial advantages of a large company.  相似文献   
992.
993.
994.
A survey of corporate Planning in Britain suggests that the way the process is organized varies with the need of the firm. There appear to be two types of needs which foster the development of the planning activity—strategy development and co-ordination. In capital intensive companies, threatened by technological or market change, there is a need for reappraisal of the firm's overall strategy. On the other hand, in a large diversified firm the requirement may be to co-ordinate the plans of different divisions and departments, particularly investment proposals. This article suggests a framework for the analysis of these planning needs.  相似文献   
995.
996.
997.
998.
999.
This study explores differences in inter-household exchange of goods and services in Anglo- and Mexican-American families controlling for income level and for ethnicity. The extent of such exchange, its perceived importance to the family's quality of life, satisfaction with the exchange, and the relation of persons in the exchange process are examined. Significant differences are found more often between higher income Anglo- and Mexican-Americans than between low-income families, both in the family providing goods and services for others and in the receipt of them. Higher income Mexican-American families are more likely than their Anglo- counterparts to exchange with relatives. Ethnic effects are more prevalent in higher income households than in low-income households. Economic effects are more predominant than ethnic effects.This study contributes to interregional Agricultural Experiment Station Research Project NC-128, Quality of Life as Influenced by Area of Residence. Cooperating states: Arizona, California, Colorado, Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Nebraska, Nevada, Ohio, Texas.Flora L. Williams' current research interests include income adequacy, financial problems, and indicators of change in economic well-being. She is an Associate Professor, Consumer Sciences and Retailing, Purdue University, West Lafayette, IN 47907.  相似文献   
1000.
Factors related to time spent in work roles are investigated for a sample of 685 wives living on family farms in seven southern and midwestern states. Data were collected in a comprehensive mail survey. Results show that variables reflecting management are the most important predictors of wife's time use satisfaction. Wife's satisfaction is also significantly related to her education and nonfarm employment. Conclusions indicate that, although wives on family farms experience work-role overload relative to their husbands, they are satisfied with their time contributions to the home/farm situation.Jeanne L. Hafstrom is Associate Professor, Consumer Sciences Division, University of Illinois, 161 Bevier Hall, 905 So. Goodwin, Urbana, IL 61801. She received her Ph.D. from the University of Illinois. Her current research interests include economic well-being and the quality of life.MaryAnn Paynter is Assistant Professor and Family Economics Extension Specialist, Consumer Sciences Division, University of Illinois, 547 Bevier Hall, 905 So. Goodwin, Urbana, IL 61801. She received her Ph.D. from Pennsylvania State University. Her current research interests include family resource management strategies.This study was part of S-191 Regional Research Project Farm Wife's External Employment, Family Economic Productivity and Family Functioning, and Project No. 60-0366 supported by the Agricultural Experiment Station, College of Agriculture, University of Illinois at Urbana-Champaign.  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