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   12118篇
  免费   369篇
  国内免费   2篇
管理学   1658篇
民族学   73篇
人才学   3篇
人口学   1050篇
丛书文集   77篇
理论方法论   1213篇
综合类   232篇
社会学   6457篇
统计学   1726篇
  2021年   65篇
  2020年   178篇
  2019年   297篇
  2018年   314篇
  2017年   429篇
  2016年   307篇
  2015年   238篇
  2014年   298篇
  2013年   2143篇
  2012年   416篇
  2011年   388篇
  2010年   307篇
  2009年   292篇
  2008年   285篇
  2007年   330篇
  2006年   312篇
  2005年   296篇
  2004年   286篇
  2003年   225篇
  2002年   243篇
  2001年   301篇
  2000年   256篇
  1999年   230篇
  1998年   179篇
  1997年   168篇
  1996年   161篇
  1995年   155篇
  1994年   165篇
  1993年   163篇
  1992年   169篇
  1991年   156篇
  1990年   167篇
  1989年   158篇
  1988年   143篇
  1987年   158篇
  1986年   126篇
  1985年   155篇
  1984年   167篇
  1983年   150篇
  1982年   128篇
  1981年   96篇
  1980年   116篇
  1979年   123篇
  1978年   113篇
  1977年   90篇
  1976年   96篇
  1975年   104篇
  1974年   96篇
  1973年   72篇
  1972年   67篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
921.
Converse's definition of ideological contraint is expanded to provide for various respondent identified ideological dimensions rather than an all encompassing liberal-conservative dimension. Using this redefinition a sample of adults is shown to have high levels of ideological constraint. Ideological constraint is shown to vary with the degree of cognitive complexity and the degree of preference evaluability. The latter is a new concept that suggests that some issues will be easier for a respondent to demonstrate constraint on depending upon the availability and applicability of preference criteria. Salience is also shown to have a positive relationship with ideological constraint, but only when preference evaluability is high.  相似文献   
922.
923.
924.
The study is based on a sample of 965 children living in Oulu region (Finland), who were monitored for acute middle ear infections from birth to the age of two years. We introduce a nonparametrically defined intensity model for ear infections, which involves both fixed and time dependent covariates, such as calendar time, current age, length of breast-feeding time until present, or current type of day care. Unmeasured heterogeneity, which manifests itself in frequent infections in some children and rare in others and which cannot be explained in terms of the known covariates, is modelled by using individual frailty parameters. A Bayesian approach is proposed to solve the inferential problem. The numerical work is carried out by Monte Carlo integration (Metropolis-Hastings algorithm).  相似文献   
925.
926.
A survey of statewide public agencies shows that a majority of states have some form of judicial or administrative periodic review, although few have both. The organizational level of authority and degree of foster care specialization of agencies are positively correlated with administrative review and negatively correlated with judicial review.  相似文献   
927.
The research on which this paper is based is part of a wider study of quality assurance and the voluntary sector. The focus of this paper is on complaints procedures, as part of quality assurance mechanisms, where voluntary agencies are the contracted service providers. The authors argue that, with the introduction of contracting and particularly with its further development, the way in which complaints mechanisms currently operate will need to be revised if they are to be an effective part of the quality assurance process.  相似文献   
928.
Direct scribing is a technique that transforms oral discourse into written text, basically by typing oral material verbatim . It was developed in practice with youth in child welfare care and adapted for research data collection. The technique flattens the power imbalance in the interview situation and between oral speech and written text, supports self-reflection, democratizes the ownership of written material, is potentially empowering, and is an efficient means to produce high-quality text. The origins in practice are reviewed and a research application is discussed in detail. Thirty youths aged 18/19 from child welfare constructed self-narratives about how they conceptualized and managed the adolescent transition, and collaborated with the researcher in analysing the narrative as a story. Each interview was direct scribed and printed copy given to the participant. Participants were introduced to direct scribing by completing a questionnaire presented on a note-book computer, and some took part in a gender-specific group discussion as a final data-collection event, which was audio-taped and transcribed. The value of direct scribing and self-narrative in this research project and possibilities for other applications are discussed.  相似文献   
929.
Using exploratory data analysis, probability plots, scatterplots, and computer animations to rotate and visualize the data, we fit a trivariate Normal distribution to data for the height, the natural logarithm of body weight, and the body fat for 646 men between the ages of 50 and 80 years as reported by the medical staff of the U.S. Veterans Administration's “Normative Aging Study” in Boston, MA. Although these data do not include any children, women, or young men, the measurements represent the best data that we could find through a 4-year search. We believe that these data are well measured and reliable for men in the specified age range and that these data reveal an interesting statistical pattern for use in probabilistic PBPK models.  相似文献   
930.
The primary purpose of this study was to contrast the life satisfaction of midlife empty-nest and childless individuals. Seventy-two men and women reported on their satisfaction with 11 areas of life as well as with regard to children. Empty-nest individuals were more satisfied than childless persons with regard to their decisions regarding children; however, the childless individuals were not unhappy with their decisions. Empty-nest individuals were also more positive than childless individuals about contact with children. There were no differences between the two groups with regard to areas of life satisfaction not related to children; nor were there significant gender differences in life satisfaction. The results were discussed in relation to both theory and data concerning midlife satisfaction and adjustment.SMS AssociatesThe research was completed by James E. Bell in partial fulfillment of the requirement for the masters of counseling degree at Arizona State University.  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