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   5920篇
  免费   186篇
  国内免费   79篇
管理学   355篇
劳动科学   7篇
民族学   85篇
人才学   2篇
人口学   141篇
丛书文集   977篇
理论方法论   275篇
综合类   3524篇
社会学   312篇
统计学   507篇
  2024年   13篇
  2023年   24篇
  2022年   85篇
  2021年   116篇
  2020年   82篇
  2019年   91篇
  2018年   94篇
  2017年   129篇
  2016年   108篇
  2015年   169篇
  2014年   263篇
  2013年   405篇
  2012年   332篇
  2011年   394篇
  2010年   435篇
  2009年   435篇
  2008年   382篇
  2007年   427篇
  2006年   457篇
  2005年   394篇
  2004年   230篇
  2003年   199篇
  2002年   217篇
  2001年   184篇
  2000年   125篇
  1999年   53篇
  1998年   43篇
  1997年   43篇
  1996年   39篇
  1995年   42篇
  1994年   35篇
  1993年   29篇
  1992年   26篇
  1991年   10篇
  1990年   10篇
  1989年   10篇
  1988年   6篇
  1987年   12篇
  1986年   4篇
  1985年   5篇
  1984年   3篇
  1983年   3篇
  1982年   3篇
  1981年   5篇
  1980年   7篇
  1979年   2篇
  1976年   1篇
  1975年   1篇
  1974年   1篇
  1973年   1篇
排序方式: 共有6185条查询结果,搜索用时 15 毫秒
91.
Categorical longitudinal data are frequently applied in a variety of fields, and are commonly fitted by generalized linear mixed models (GLMMs) and generalized estimating equations models. The cumulative logit is one of the useful link functions to deal with the problem involving repeated ordinal responses. To check the adequacy of the GLMMs with cumulative logit link function, two goodness-of-fit tests constructed by the unweighted sum of squared model residuals using numerical integration and bootstrap resampling technique are proposed. The empirical type I error rates and powers of the proposed tests are examined by simulation studies. The ordinal longitudinal studies are utilized to illustrate the application of the two proposed tests.  相似文献   
92.
Wu  Tai-Hsi  Chih  Hsiang-Lin  Lin  Mei-Chen  Wu  Yi Hua 《Social indicators research》2020,148(3):863-892

Many research papers calculate corporate social performance (CSP) with the net score method, i.e., by subtracting the number of concerns from the number of strengths. Although widely adopted, this method implies, perhaps mistakenly, that each indicator is of equal importance and that however serious the social misconduct a firm may have engaged in, it can be completely offset by some positive social action. The method also implies that a given firm that has done both a lot of harm and a lot of good will have CSP similar to that of another firm that has done little harm and little good. In this study, however, we question the appropriateness of the net score method in terms of its ability to truly reflect CSP and truly identify the real effects of CSP on various characteristics. We therefore propose a data envelopment analysis-based methodology that adopts the assurance region approach for evaluating CSP, through which various CSP indicators are converted into a single composite measure of CSP. Our findings show that our proposed methodology consistently performs better than the net score method in evaluating CSP.

  相似文献   
93.
孙林 《西藏研究》2006,33(4):30-35
文章主要对藏区古老的苯教的宗教属性和特征进行分析,认为在历史上,苯教作为一种宗教的名称出现时,其已经形成系统性的宗教体系,所以我们不能将之列为原始宗教。苯教一般被分为两类,即斯巴苯教与雍仲苯教。其中斯巴苯教与民间宗教有密切的关系,为藏区民间宗教的源流之一。  相似文献   
94.
礼物、关系和信任   总被引:2,自引:0,他引:2  
本文试图通过关系/人情/信任三个具有本土意义的重要概念,来探讨中国社会中的礼物流动及其背后所隐含的人际意义。通过理论建构,笔者提出了一个“人际关系在送礼过程中的运作过程”模型。  相似文献   
95.
在近代,随着外国侵略势力的到来,中国航运业受到了很大的冲击,中国古老的航运工具———木船受到了排挤。但由于各种原因,在19世纪70—90年代这段时间里中国木船业并没有走向灭亡,而是持续的向前发展。  相似文献   
96.
Nonresponse is a very common phenomenon in survey sampling. Nonignorable nonresponse – that is, a response mechanism that depends on the values of the variable having nonresponse – is the most difficult type of nonresponse to handle. This article develops a robust estimation approach to estimating equations (EEs) by incorporating the modelling of nonignorably missing data, the generalized method of moments (GMM) method and the imputation of EEs via the observed data rather than the imputed missing values when some responses are subject to nonignorably missingness. Based on a particular semiparametric logistic model for nonignorable missing response, this paper proposes the modified EEs to calculate the conditional expectation under nonignorably missing data. We can apply the GMM to infer the parameters. The advantage of our method is that it replaces the non-parametric kernel-smoothing with a parametric sampling importance resampling (SIR) procedure to avoid nonparametric kernel-smoothing problems with high dimensional covariates. The proposed method is shown to be more robust than some current approaches by the simulations.  相似文献   
97.
This paper discusses regression analysis of clustered current status data under semiparametric additive hazards models. In particular, we consider the situation when cluster sizes can be informative about correlated failure times from the same cluster. To address the problem, we present estimating equation-based estimation procedures and establish asymptotic properties of the resulting estimates. Finite sample performance of the proposed method is assessed through an extensive simulation study, which indicates the procedure works well. The method is applied to a motivating data set from a lung tumorigenicity study.  相似文献   
98.
In this article, we propose a new class of semiparametric instrumental variable models with partially varying coefficients, in which the structural function has a partially linear form and the impact of endogenous structural variables can vary over different levels of some exogenous variables. We propose a three-step estimation procedure to estimate both functional and constant coefficients. The consistency and asymptotic normality of these proposed estimators are established. Moreover, a generalized F-test is developed to test whether the functional coefficients are of particular parametric forms with some underlying economic intuitions, and furthermore, the limiting distribution of the proposed generalized F-test statistic under the null hypothesis is established. Finally, we illustrate the finite sample performance of our approach with simulations and two real data examples in economics.  相似文献   
99.
VOLUNTAS: International Journal of Voluntary and Nonprofit Organizations - This article explores how and to what extent revenue diversification and concentration strategies affect financial...  相似文献   
100.
ABSTRACT

Situated in China’s neoliberal context and its rapid development of information communication technologies (ICTs), this study aimed to examine how disabled people in China transformed themselves into new self-enterprising subjects in the wave of ‘Internet?+?Disability.’ In order to answer this question, this study tried to develop an analytical framework to illustrate the disability practices that situated in the ICTs and neoliberal context, underpinned by the discourse of ‘self as enterprise,’ and demonstrated by the practices of entrepreneurship and employment. Based on the research design of case studies and methods that included ethnographic participant observation and in-depth interviews, this study explained how a disabled entrepreneur, Mr. Yuan, took advantage of the wave of ‘Internet?+?Disability’ to realize his dream of entrepreneurship and face the uncertainties of a precarious entrepreneurship. It also explained how Mr. Yuan’s employees achieved their dreams of employment but suffered the precariousness of enterprising subjects.  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