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   99323篇
  免费   3077篇
  国内免费   7篇
管理学   13605篇
民族学   603篇
人才学   31篇
人口学   8080篇
丛书文集   555篇
教育普及   3篇
理论方法论   10132篇
现状及发展   1篇
综合类   2295篇
社会学   47571篇
统计学   19531篇
  2023年   536篇
  2021年   607篇
  2020年   1592篇
  2019年   2312篇
  2018年   2352篇
  2017年   3429篇
  2016年   2654篇
  2015年   2154篇
  2014年   2746篇
  2013年   19333篇
  2012年   2819篇
  2011年   2697篇
  2010年   2228篇
  2009年   2349篇
  2008年   2336篇
  2007年   2203篇
  2006年   2370篇
  2005年   2540篇
  2004年   2373篇
  2003年   2117篇
  2002年   2212篇
  2001年   2285篇
  2000年   2070篇
  1999年   1918篇
  1998年   1641篇
  1997年   1513篇
  1996年   1465篇
  1995年   1462篇
  1994年   1421篇
  1993年   1414篇
  1992年   1464篇
  1991年   1388篇
  1990年   1351篇
  1989年   1197篇
  1988年   1273篇
  1987年   1131篇
  1986年   1045篇
  1985年   1215篇
  1984年   1273篇
  1983年   1140篇
  1982年   1037篇
  1981年   925篇
  1980年   878篇
  1979年   981篇
  1978年   846篇
  1977年   766篇
  1976年   710篇
  1975年   683篇
  1974年   583篇
  1973年   494篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
51.
This paper considers whether gains made by shareholders from corporate takeovers are achieved at the expense of employees, as proposed by the ‘wealth transfer’ perspective. It analyses the contribution of employee lay‐offs, along with employment and wage changes, to the takeover premium and abnormal share price movements. The analysis draws on a unique dataset of British takeovers, combining documentary, share price and accounting data. The results show that lay‐offs planned at the takeover have either no effect or adverse effects on shareholder returns. Wages growth is positively, not inversely, related to shareholder returns from the second year after the takeover, whilst positive employment changes have a similar effect in the following year. Closer scrutiny indicates that labour and shareholders share gains when the firm does well, but share pain when it does not. There is evidence, therefore, that labour and shareholder interests can be complementary, rather than antagonistic, after takeovers.  相似文献   
52.
Social Indicators Research - This paper analyses the Human Development Index (HDI) time series from 2010 to 2017. An alternative index is studied, which combines the same components of the HDI by...  相似文献   
53.
Abstract

Confidence sets, p values, maximum likelihood estimates, and other results of non-Bayesian statistical methods may be adjusted to favor sampling distributions that are simple compared to others in the parametric family. The adjustments are derived from a prior likelihood function previously used to adjust posterior distributions.  相似文献   
54.
55.
56.
Journal of Population Research - This paper details efforts to link administrative records from the Internal Revenue Service (IRS) to American Community Survey (ACS) and 2010 Census microdata for...  相似文献   
57.
This article contributes to understanding transformational change towards gender equality by examining the transformational change potential of a mentoring programme for women, a type of gender equality intervention both criticized and praised for its ability to bring about change. Drawing upon an empirical case study of a mentoring programme for women academics in a Dutch university, we explore three dimensions of transformational change: organizational members (i) discussing and reflecting upon gendered organizational norms and work practices; (ii) creating new narratives; and (iii) experimenting with new work practices. Our findings indicate five specific conditions that enable transformational change: cross‐mentoring, questioning what is taken for granted, repeating participation and individual stories, facilitating peer support networks and addressing and equipping all participants as change agents. We suggest that these conditions should be taken into account when (re)designing effective organizational gender equality interventions.  相似文献   
58.
This article studies design selection for generalized linear models (GLMs) using the quantile dispersion graphs (QDGs) approach in the presence of misspecification in the link and/or linear predictor. The uncertainty in the linear predictor is represented by a unknown function and estimated using kriging. For addressing misspecified link functions, a generalized family of link functions is used. Numerical examples are shown to illustrate the proposed methodology.  相似文献   
59.
60.
Abstract

In general, survival data are time-to-event data, such as time to death, time to appearance of a tumor, or time to recurrence of a disease. Models for survival data have frequently been based on the proportional hazards model, proposed by Cox. The Cox model has intensive application in the field of social, medical, behavioral and public health sciences. In this paper we propose a more efficient sampling method of recruiting subjects for survival analysis. We propose using a Moving Extreme Ranked Set Sampling (MERSS) scheme with ranking based on an easy-to-evaluate baseline auxiliary variable known to be associated with survival time. This paper demonstrates that this approach provides a more powerful testing procedure as well as a more efficient estimate of hazard ratio than that based on simple random sampling (SRS). Theoretical derivation and simulation studies are provided. The Iowa 65+ Rural study data are used to illustrate the methods developed in this paper.  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