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   21443篇
  免费   323篇
  国内免费   2篇
管理学   3102篇
民族学   159篇
人才学   3篇
人口学   3350篇
丛书文集   73篇
理论方法论   1625篇
综合类   513篇
社会学   10075篇
统计学   2868篇
  2020年   163篇
  2019年   269篇
  2018年   1902篇
  2017年   2035篇
  2016年   1325篇
  2015年   252篇
  2014年   311篇
  2013年   1859篇
  2012年   686篇
  2011年   1483篇
  2010年   1312篇
  2009年   1057篇
  2008年   1078篇
  2007年   1283篇
  2006年   269篇
  2005年   492篇
  2004年   505篇
  2003年   405篇
  2002年   318篇
  2001年   291篇
  2000年   247篇
  1999年   227篇
  1998年   175篇
  1997年   163篇
  1996年   188篇
  1995年   150篇
  1994年   154篇
  1993年   158篇
  1992年   162篇
  1991年   154篇
  1990年   160篇
  1989年   149篇
  1988年   146篇
  1987年   152篇
  1986年   117篇
  1985年   149篇
  1984年   161篇
  1983年   146篇
  1982年   128篇
  1981年   93篇
  1980年   117篇
  1979年   115篇
  1978年   105篇
  1977年   91篇
  1976年   92篇
  1975年   100篇
  1974年   95篇
  1973年   69篇
  1972年   61篇
  1971年   55篇
排序方式: 共有10000条查询结果,搜索用时 484 毫秒
31.
32.
Sets of relatively short time series arise in many situations. One aspect of their analysis may be the detection of outlying series. We examine the performance of standard normal outlier tests applied to the means, or to simple functions of the means, of AR(1) series, not necessarily of equal lengths. Although unequal lengths of series implies that the means have unequal variances, that are only known approximately, it is shown that nominal significance levels hold good under most circumstances. Thus a standard outlier test can usefully be applied, avoiding the complication of estimating the time series' parameters. The test's power is affected by unequal lengths, being higher when the slippage occurs in one of the longer series  相似文献   
33.
Empirical applications of poverty measurement often have to deal with a stochastic weighting variable such as household size. Within the framework of a bivariate distribution function defined over income and weight, I derive the limiting distributions of the decomposable poverty measures and of the ordinates of stochastic dominance curves. The poverty line is allowed to depend on the income distribution. It is shown how the results can be used to test hypotheses concerning changes in poverty. The inference procedures are briefly illustrated using Belgian data. An erratum to this article can be found at  相似文献   
34.
Singh et al. ([13]) pointed out that the Randomized response (RR) technique proposed by Moors ([9]) is not desirable because it fails to protect the confidentiality of the respondents and they provided two alternative strategies free from the above drawback but limited to SRSWOR sampling only. In this paper, generalization of one of the strategies is provided for complex survey designs, wider class of estimators and for quantitative characteristics. Relative efficiency of the modified strategy is tested through empirical investigations. An erratum to this article is available at .  相似文献   
35.
36.
37.
38.
39.
This article provides a critical review of literature on the relationship between gender and the 'new paradigm' of health. An overview of the feminist critique of health is given, from the Women's Health Movement of the late 1960s and early feminist debates about medicalisation, to more recent discussions about structural inequalities between men and women, eating disorders, and AIDS. I then go on to explore the feminist response to the so-called 'new paradigm' of health (an approach that emphasises health promotion, individual responsibility for health, and body-monitoring). Arguments that health promotion initiatives target women and confirm their position as principal guardians of health within the family are considered, as well as literature on the breast cancer awareness campaign. I then explore the growing body of literature on masculinity and health, and its account of the relationship between gender and current ideas about healthiness. Finally, I offer up some suggestions for the direction a new feminist critique of health might take.  相似文献   
40.
It is known that the Henderson Method III (Biometrics 9:226–252, 1953) is of special interest for the mixed linear models because the estimators of the variance components are unaffected by the parameters of the fixed factor (or factors). This article deals with generalizations and minor extensions of the results obtained for the univariate linear models. A MANOVA mixed model is presented in a convenient form and the covariance components estimators are given on finite dimensional linear spaces. The results use both the usual parametric representations and the coordinate-free approach of Kruskal (Ann Math Statist 39:70–75, 1968) and Eaton (Ann Math Statist 41:528–538, 1970). The normal equations are generalized and it is given a necessary and sufficient condition for the existence of quadratic unbiased estimators for covariance components in the considered model.  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