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   91965篇
  免费   2991篇
  国内免费   3篇
管理学   12465篇
民族学   561篇
人才学   25篇
人口学   7233篇
丛书文集   533篇
教育普及   2篇
理论方法论   9580篇
现状及发展   1篇
综合类   2193篇
社会学   43229篇
统计学   19137篇
  2023年   515篇
  2021年   579篇
  2020年   1541篇
  2019年   2266篇
  2018年   2175篇
  2017年   3241篇
  2016年   2437篇
  2015年   2071篇
  2014年   2665篇
  2013年   19008篇
  2012年   2514篇
  2011年   2287篇
  2010年   2064篇
  2009年   2248篇
  2008年   2153篇
  2007年   1934篇
  2006年   2143篇
  2005年   2338篇
  2004年   2213篇
  2003年   1943篇
  2002年   2021篇
  2001年   2040篇
  2000年   1812篇
  1999年   1705篇
  1998年   1515篇
  1997年   1368篇
  1996年   1322篇
  1995年   1337篇
  1994年   1325篇
  1993年   1297篇
  1992年   1308篇
  1991年   1229篇
  1990年   1206篇
  1989年   1040篇
  1988年   1129篇
  1987年   1006篇
  1986年   911篇
  1985年   1080篇
  1984年   1136篇
  1983年   1017篇
  1982年   945篇
  1981年   865篇
  1980年   822篇
  1979年   867篇
  1978年   775篇
  1977年   711篇
  1976年   657篇
  1975年   638篇
  1974年   516篇
  1973年   441篇
排序方式: 共有10000条查询结果,搜索用时 875 毫秒
301.
Often university students are faced with career decisions and seek help from the university counseling center. The pyramid model is a useful tool to assist the counselor and the student in the decision-making process. The metaphor enables the student to understand the tasks that lie ahead in the career counseling process. It is holistic. A case study is included to illustrate the three-dimensional model of career counseling of university students.  相似文献   
302.
303.
Abstract Nonmetropolitan (nonmetro) inequality patterns are contrasted with those of metropolitan (metro) areas to assess the utility of neoclassical and restructuring theoretical frameworks. Inequality measures are constructed from March Current Population Surveys for the years 1968–1991. Results indicate that inequality is greater in nonmetro areas than in metro areas. Results of decomposition procedures suggest that the observed inequality is due to a mix of neoclassical and restructuring factors that account for more inequality in metro than nonmetro areas. National policies must take account of metro/nonmetro differences in patterns and sources of inequality.  相似文献   
304.
305.
VII. Conclusion The number of immigrants now coming to the United States is proportionally only a fraction of the number that came in earlier years, and there is nothing in those numbers to suggest a difficult absorption burden. Immigrants, both legal and illegal, more than pay for the services they use with the taxes they pay, leaving a considerable net surplus that benefits American citizens. Immigrants raise productivity and do not cause an observable amount of unemployment of citizens. Admitting far more immigrants into the country than the law now allows would have positive effects on the incomes of citizens, and would enhance the continuing vitality of the United States.  相似文献   
306.
UNDERSTANDING THE DECISION TO PARTICIPATE IN A SURVEY   总被引:18,自引:1,他引:17  
The lack of full participation in sample surveys threatens theinferential value of the survey method. We review a set of conceptualdevelopments and experimental findings that appear to be informativeabout causes of survey participation; offer an integration ofthat work with findings from the more traditional statisticaland survey methodological literature on nonresponse; and, giventhe theoretical structure, deduce potentially promising pathsof research toward the understanding of survey participation.  相似文献   
307.
308.
309.
The study reported describes Efe (pygmy) forager one-, two-, and three-year-olds' involvement with males. The Efe of northeastern Zaïre were chosen because their social organization allows us to examine hypotheses based on studies in Western, technologically complex societies about the distinctive role fathers play in the lives of their young children. Behavioral observations of Efe children's day-to-day activities with fathers, men and boys were recorded using a focal subject sampling technique (Altmann, 1974). Two behavioral measures were created to capture the extent to which males were involved with children: Social engagement describes males' involvement with children and social attention describes eavesdropping by children on males' everyday activities. Eight one-year-olds, 7 two-year-olds and 8 three-year-olds were each observed for six, one-hour observation sessions that were distributed evenly over the daylight hours. Data were analyzed using the traditional measure of involvement (e.g., adult males) and using a newly developed measure of the involvement of the average individual (e.g., average adult mate). Comparisons at each of the ages showed that fathers were consistently like other men in the extent to which children participated in social activities with them and watched their activities. Only fathers' level of social engagement declined significantly as children grew older. Boys' role relative to other males became increasingly distinctive as children aged. The findings suggest that Efe fathers may not be unique in the same sense assumed by Western study ideals, and raise questions about the special status given to fathers in Western theory and data. The patterning of mate involvement with children is discussed in terms of Efe community life, and in terms of Efe children's developing understanding of their relationship with fathers and other males.  相似文献   
310.
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