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   708篇
  免费   27篇
管理学   126篇
民族学   5篇
人口学   62篇
丛书文集   2篇
理论方法论   68篇
综合类   6篇
社会学   386篇
统计学   80篇
  2023年   13篇
  2022年   9篇
  2021年   8篇
  2020年   24篇
  2019年   28篇
  2018年   32篇
  2017年   42篇
  2016年   43篇
  2015年   19篇
  2014年   39篇
  2013年   92篇
  2012年   36篇
  2011年   41篇
  2010年   25篇
  2009年   30篇
  2008年   29篇
  2007年   23篇
  2006年   25篇
  2005年   16篇
  2004年   26篇
  2003年   11篇
  2002年   8篇
  2001年   9篇
  2000年   9篇
  1999年   13篇
  1998年   8篇
  1997年   8篇
  1996年   5篇
  1995年   5篇
  1994年   2篇
  1993年   2篇
  1992年   6篇
  1991年   5篇
  1990年   4篇
  1989年   3篇
  1988年   3篇
  1987年   4篇
  1986年   4篇
  1985年   5篇
  1984年   4篇
  1983年   3篇
  1982年   3篇
  1981年   3篇
  1980年   1篇
  1978年   1篇
  1977年   1篇
  1976年   2篇
  1975年   2篇
  1965年   1篇
排序方式: 共有735条查询结果,搜索用时 187 毫秒
61.
62.
Even though disabled children are targets of various forms of abuse, such issues remain mostly undocumented open secrets in many countries including Ghana. The article is based on a qualitative data provided by three key informants. Six stories emerged from the data and are discussed in terms of four main forms of abuse. Labelling theories are employed to strengthen the discussions. The article is aimed at increasing awareness on the various forms of abuse experienced by disabled children in Ghana. The study is also meant to capture the attentions of stakeholders that have the responsibility to end abusive practices against disabled children in Ghana.  相似文献   
63.
64.
Political-economic classics of different schools agreed that capitalism inherently and inevitably leads to a decline of market principles. We analyze indicators of liberalization policies for 21 OECD-countries in five economic and social policy fields and demonstrate that western industrialized countries are subject of a convergent trend towards market-creating policies??in stark contrast to the theoretical expectations of several political economy authors. At the latest during the first half of the eighties, the western democracies entered a new phase of economic liberalization, which continues up to the present. A methodological implication of our findings suggests that the methods of causal analysis of convergent liberalization policies may not be the same as those who have been applied for the analysis of development and consolidation of the varieties of capitalism in the postwar era.  相似文献   
65.
66.
67.
This study examines new immigrants from the former USSR, their attitudes, expectations and the awareness of change in themselves and in their fellow immigrants. Participants demonstrated attitudes toward the new society which differed dramatically depending on the sphere of life being examined: cultural, institutional, or quotidian. Participants displayed a tendency toward integration in the institutional and quotidian spheres, but not in the cultural. An attitude toward integration did not automatically lead to an awareness of change in the new immigrants themselves. Participants consistently reported higher degrees of change in fellow immigrants in comparison to themselves. The issue of preservation of self‐identity through socio‐cultural conservation is discussed, as well as the relevance of these findings for Vygotsky's cultural‐historical theory and Feuerstein's theory of mediated learning.  相似文献   
68.
A quasi-Newton acceleration for high-dimensional optimization algorithms   总被引:1,自引:0,他引:1  
In many statistical problems, maximum likelihood estimation by an EM or MM algorithm suffers from excruciatingly slow convergence. This tendency limits the application of these algorithms to modern high-dimensional problems in data mining, genomics, and imaging. Unfortunately, most existing acceleration techniques are ill-suited to complicated models involving large numbers of parameters. The squared iterative methods (SQUAREM) recently proposed by Varadhan and Roland constitute one notable exception. This paper presents a new quasi-Newton acceleration scheme that requires only modest increments in computation per iteration and overall storage and rivals or surpasses the performance of SQUAREM on several representative test problems.  相似文献   
69.
Recently, there have been advances in the development of multidimensional poverty measures. Work is needed however on how to implement such measures. This paper deals with the process of selecting dimensions and setting weights in multidimensional poverty measurement using qualitative and quantitative methods in a participatory framework. We estimate the multidimensional poverty measures developed by Alkire and Foster for a particular group: persons with psychiatric diagnoses in the United States. To select relevant dimensions and their relative ordering, two discussion groups are convened: one consisting of persons with lived-experience expertise and the other consisting of people with mental health service provision or research expertise. Several methods are used to convert dimension rankings into weights. The selection and ordering of dimensions differed between the two discussion groups, as did the resulting poverty measures. For instance, the poverty headcount using the dimensions and weights of the ‘lived experience’ group ranged from 20.61 to 26.96% as compared to a range of 18.62–33.19% using those of the ‘provider/researcher’ group. One of the main results of this study is that the Alkire Foster method is sensitive to the selection of dimensions and the methods used to derive rankings and weights. It points toward the limitation of relying exclusively on small scale qualitative methods for the selection and ranking of dimensions. In addition, the participatory framework used in this study was found to be essential in interpreting results, in particular with respect to the limitations of the data set in measuring relevant dimensions.  相似文献   
70.
The presence of shared implicit theories of performance is used in explaining the failure of behavioral anchors to improve performance ratings. It is proposed that efforts to improve rating accuracy also will be hampered by a preoccupation with observation. Instead, attention needs to be focused on the inferential accuracy of the rater and the cognitive processes and implicit theories upon which raters rely.  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