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   8520篇
  免费   145篇
  国内免费   1篇
管理学   1112篇
民族学   37篇
人才学   1篇
人口学   827篇
丛书文集   36篇
理论方法论   781篇
综合类   98篇
社会学   4139篇
统计学   1635篇
  2023年   47篇
  2020年   110篇
  2019年   157篇
  2018年   186篇
  2017年   283篇
  2016年   203篇
  2015年   150篇
  2014年   190篇
  2013年   1465篇
  2012年   254篇
  2011年   242篇
  2010年   172篇
  2009年   158篇
  2008年   183篇
  2007年   179篇
  2006年   207篇
  2005年   191篇
  2004年   174篇
  2003年   164篇
  2002年   191篇
  2001年   188篇
  2000年   200篇
  1999年   197篇
  1998年   156篇
  1997年   150篇
  1996年   136篇
  1995年   127篇
  1994年   127篇
  1993年   125篇
  1992年   136篇
  1991年   142篇
  1990年   146篇
  1989年   158篇
  1988年   94篇
  1987年   120篇
  1986年   108篇
  1985年   125篇
  1984年   108篇
  1983年   121篇
  1982年   90篇
  1981年   95篇
  1980年   86篇
  1979年   90篇
  1978年   98篇
  1977年   70篇
  1976年   70篇
  1975年   64篇
  1974年   63篇
  1973年   53篇
  1971年   42篇
排序方式: 共有8666条查询结果,搜索用时 15 毫秒
1.
2.
Marxist sociology is at the intersection of Marxism and sociology; while humanist sociology is at the intersection of humanist thought and sociology. Both see sociological theory as a living, evolving activity, and both take a critical stance toward the workings of capitalism. The main difference between them is that Marxist sociology is a body of thought tied to a movement, whereas humanist sociology is a movement tied to a body of thought. Professor of Sociology, Purdue University Calumet. He is past chair of the Section on Marxist Sociology, has been a member of the AHS for twenty years, and is co-author of Crisis and Change: Basic Questions of Marxist Sociology.  相似文献   
3.
4.
5.
6.
Spatial variation in soil inorganic nitrogen across an arid urban ecosystem   总被引:4,自引:1,他引:3  
We explored variations in inorganic soil nitrogen (N) concentrations across metropolitan Phoenix, Arizona, and the surrounding desert using a probability-based synoptic survey. Data were examined using spatial statistics on the entire region, as well as for the desert and urban sites separately. Concentrations of both NO3-N and NH4-N were markedly higher and more heterogeneous amongst urban compared to desert soils. Regional variation in soil NO3-N concentration was best explained by latitude, land use history, population density, along with percent cover of impervious surfaces and lawn, whereas soil NH4-N concentrations were related to only latitude and population density. Within the urban area, patterns in both soil NO3-N and NH4-N were best predicted by elevation, population density and type of irrigation in the surrounding neighborhood. Spatial autocorrelation of soil NO3-N concentrations explained 49% of variation among desert sites but was absent between urban sites. We suggest that inorganic soil N concentrations are controlled by a number of ‘local’ or ‘neighborhood’ human-related drivers in the city, rather than factors related to an urban-rural gradient.  相似文献   
7.
The Coase theorem maintains that where free-market precepts exist, the allocation of property rights does not impact the distribution of resources. An application to Major League Baseball suggests that institutions such as free agency and the reverse-order amateur draft would not impact player distributions and therefore would not impact competitive balance. The present study finds that the distribution of wins is generally consistent with the precepts of the Coase theorem and therefore suggests a course for those who wish to alter the level of competitive balance: Major League Baseball should increase its focus on expanding the size of its labor pool. (JEL O15 , L83 , C22 )  相似文献   
8.
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   
9.
10.
This study examines the influence of the socialization of aggression among different gender and social class groupings and the influence of psychosocial stage on cognitive developmental play preferences among groups of school aged children. Observations of 143 play groups were coded for play preference (symbolic play, practice play, games with rules) and play performance (cooperative or competitive). Findings of the log-linear data analysis suggest a middle class and masculine bias in Piaget's cognitive model (i.e., that as age increases children prefer more games with rules). This model held only for middle class and affluent boys. Girls (both latency and prepubertal) and lower socioeconomic groups tended to prefer practice play. Girls were more likely to play cooperatively; boys more likely to play competitively. Implications for theory development and clinical practice are explored.  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