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   91768篇
  免费   1980篇
  国内免费   18篇
管理学   12347篇
民族学   554篇
人才学   25篇
人口学   6906篇
丛书文集   603篇
理论方法论   9434篇
综合类   2676篇
社会学   42445篇
统计学   18776篇
  2023年   511篇
  2021年   575篇
  2020年   1519篇
  2019年   2200篇
  2018年   2078篇
  2017年   3170篇
  2016年   2383篇
  2015年   2057篇
  2014年   2645篇
  2013年   18894篇
  2012年   2443篇
  2011年   2253篇
  2010年   2061篇
  2009年   2241篇
  2008年   2145篇
  2007年   1960篇
  2006年   2188篇
  2005年   2362篇
  2004年   2169篇
  2003年   1890篇
  2002年   2000篇
  2001年   2000篇
  2000年   1770篇
  1999年   1684篇
  1998年   1491篇
  1997年   1327篇
  1996年   1290篇
  1995年   1318篇
  1994年   1288篇
  1993年   1269篇
  1992年   1258篇
  1991年   1197篇
  1990年   1176篇
  1989年   1026篇
  1988年   1125篇
  1987年   991篇
  1986年   888篇
  1985年   1067篇
  1984年   1122篇
  1983年   1003篇
  1982年   934篇
  1981年   860篇
  1980年   798篇
  1979年   861篇
  1978年   759篇
  1977年   686篇
  1976年   649篇
  1975年   631篇
  1974年   517篇
  1973年   433篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
951.
952.
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   
953.
954.
955.
956.
957.
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   
958.
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   
959.
960.
The paper introduces a methodology for measuring accuratelythe time it takes respondents to answer questions in computer-assistedtelephone surveys. The methodology, which is completely invisibleto respondents, comprises a computer "clock," capable of timingresponses with millisecond accuracy, and a "voice-key" thatconverts sounds emitted by respondents into signals capableof triggering the computer clock. Response times to questionson a range of attitude questions, including stable and unstableattitudes, were measured. The results revealed orderly normsin the latencies associated with various types of survey questions.The latencies associated with the expression of stable and unstableattitudes are discussed in the context of the notion of "nonattitudes"and shed new light on this controversial thesis. Overall, ourresults demonstrate that response latencies can be measuredprecisely and reliably in telephone surveys and that the datafrom such measurement open new windows on the cognitive dynamicsof survey responses.  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