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   18175篇
  免费   468篇
管理学   2625篇
民族学   82篇
人才学   2篇
人口学   1807篇
丛书文集   86篇
教育普及   1篇
理论方法论   1612篇
现状及发展   1篇
综合类   405篇
社会学   8259篇
统计学   3763篇
  2023年   110篇
  2021年   107篇
  2020年   242篇
  2019年   341篇
  2018年   410篇
  2017年   578篇
  2016年   457篇
  2015年   319篇
  2014年   400篇
  2013年   3123篇
  2012年   632篇
  2011年   505篇
  2010年   406篇
  2009年   390篇
  2008年   447篇
  2007年   438篇
  2006年   372篇
  2005年   435篇
  2004年   400篇
  2003年   409篇
  2002年   460篇
  2001年   470篇
  2000年   449篇
  1999年   423篇
  1998年   310篇
  1997年   275篇
  1996年   281篇
  1995年   257篇
  1994年   223篇
  1993年   245篇
  1992年   273篇
  1991年   252篇
  1990年   253篇
  1989年   269篇
  1988年   257篇
  1987年   237篇
  1986年   241篇
  1985年   273篇
  1984年   252篇
  1983年   248篇
  1982年   182篇
  1981年   171篇
  1980年   161篇
  1979年   204篇
  1978年   159篇
  1977年   139篇
  1976年   128篇
  1975年   137篇
  1974年   118篇
  1973年   110篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
141.
THE SOLUTION-ORIENTED GENOGRAM: A COLLABORATIVE APPROACH   总被引:1,自引:0,他引:1  
Developed primarily by Bowenian intergenerational therapists, genograms have evolved into largely atheoretical tools used by many therapists. Given that constructivist-based therapies have become the most popular genre of contemporary family therapies (Sprenkle & Piercy, 1992), the author examines how genograms can be used to augment a solution-oriented approach. Specific interventions, case examples, and potential problems associated with such an approach are discussed, along with potential implications for family-of-origin work.  相似文献   
142.
The article describes the socioeconomic situation of the Russian population and its dynamics in 1992. The analysis is based on series of regional sociological surveys led by the All-Russian Living Standards Research Center and on official Russian statistical data. The basic unit of analysis is the family, and hence family typology approbated both in research and in practical social work is introduced. Besides describing and discussing the growing poverty tendencies in contemporary Russia, the article also contains methodological recommendations for social policy bodies and social workers on the strategy of work in social maintenance and social support of the least secure population strata.  相似文献   
143.
144.
The American diet has changed substantially over the last few decades. These changes provide a test for social theory and have substantial effects on the demand for various food products, thus impacting U.S. agriculture. In this paper a rapidly growing dietary choice—vegetarianism—is explored. Prevalence of various forms of vegetarianism is estimated in a representative sample of a suburban population and factors that influence choice of a vegetarian diet are examined. About 7 percent of the sample report they are vegetarians. The prevalence of vegetarianism is not influenced by age, gender, or education, but individuals holding traditional values are less likely to be vegetarian than others. There also is some evidence mat individuals holding altruistic values are more likely than others to be vegetarians.  相似文献   
145.
Abstract The objective of this study is to examine female labor force participation and its determinants in rural and urban China. The sociological literature has demonstrated that participation tends to increase in urban and industrialized places where women have higher levels of education and fewer children, where more workers are engaged in service pursuits, and where family structure is less traditional. With the use of data on counties and cities (N = 2,377) from the I-percent sample of the 1982 census of the People's Republic of China, it was found that female labor force participation is likely to rise in areas with increased agricultural employment, educational levels, proportion of female-headed households, and higher male-to-female sex ratios. Both the size of the service sector and the fertility rate had negligible effects on female labor force participation. Although, on average, rural places have slightly higher levels of female labor force participation, when other variables are controlled, urban places have a higher rate of female participation. In addition, the findings suggest that market factors (i.e., education) are more likely to determine the rate of female labor force participation in urban areas; whereas demographic and social factors (i.e., sex ratio and household structure) play a more important role in explaining the female labor force participation in rural counties.  相似文献   
146.
147.
148.
The problem of determining the number of multi-type protection devices and their locations on electrical supply tree networks with subtree dependency is investigated. The aim is to reduce the amount of inconvenience caused to customers that are affected by any given fault on the networks. An appropriate implementation of tabu search is proposed. We exploit a variable neighborhood and a soft aspiration level, and we embed a data structure and reduction tests into the search to speed up the process. Computational tests are performed on randomly generated electrical tree networks varying in size and branch complexity with encouraging results.  相似文献   
149.
150.
This paper develops a likelihood‐based method for fitting additive models in the presence of measurement error. It formulates the additive model using the linear mixed model representation of penalized splines. In the presence of a structural measurement error model, the resulting likelihood involves intractable integrals, and a Monte Carlo expectation maximization strategy is developed for obtaining estimates. The method's performance is illustrated with a simulation study.  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