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   2970篇
  免费   781篇
管理学   736篇
民族学   9篇
人口学   95篇
丛书文集   1篇
理论方法论   614篇
综合类   10篇
社会学   1970篇
统计学   316篇
  2023年   1篇
  2021年   67篇
  2020年   144篇
  2019年   304篇
  2018年   133篇
  2017年   215篇
  2016年   261篇
  2015年   276篇
  2014年   243篇
  2013年   420篇
  2012年   201篇
  2011年   195篇
  2010年   164篇
  2009年   133篇
  2008年   164篇
  2007年   116篇
  2006年   127篇
  2005年   102篇
  2004年   106篇
  2003年   89篇
  2002年   62篇
  2001年   68篇
  2000年   53篇
  1999年   16篇
  1998年   2篇
  1997年   6篇
  1996年   11篇
  1995年   5篇
  1994年   7篇
  1993年   10篇
  1992年   3篇
  1991年   8篇
  1990年   4篇
  1989年   9篇
  1988年   13篇
  1987年   3篇
  1986年   2篇
  1985年   2篇
  1983年   2篇
  1980年   1篇
  1979年   1篇
  1976年   1篇
  1972年   1篇
排序方式: 共有3751条查询结果,搜索用时 912 毫秒
671.
672.
673.
Social work education in China has undergone rapid development during last two decades. However, methods to define, measure, and evaluate social work students' competency remain largely unexplored. In this study, we evaluated competency in graduate social work students in China and examined factors that impacted competency, based on learning theory. Findings indicated that knowledge and skills learned in class, field placement, and social context all have effects on competency. How students think about individual development and the social work profession has the most significant effect. These findings carry implications for social work education in the Chinese context. The rapid development of social work education in China requires the effective measurement and evaluation of students' core competencies.  相似文献   
674.
Abstract. We study the Bayesian solution of a linear inverse problem in a separable Hilbert space setting with Gaussian prior and noise distribution. Our contribution is to propose a new Bayes estimator which is a linear and continuous estimator on the whole space and is stronger than the mean of the exact Gaussian posterior distribution which is only defined as a measurable linear transformation. Our estimator is the mean of a slightly modified posterior distribution called regularized posterior distribution. Frequentist consistency of our estimator and of the regularized posterior distribution is proved. A Monte Carlo study and an application to real data confirm good small‐sample properties of our procedure.  相似文献   
675.
The purpose of this study was to examine the viability of hybrid competitive strategies, which combine differentiation and cost elements, and their impact on organizational performance in comparison to pure strategies and ‘stuck‐in‐the‐middle’ combinations. Previous studies have focused above all on US data. The analysis carried out in this paper has centred on a multisectorial sample of 164 Spanish firms. The findings show that a large number of the organizations use different types of hybrid strategies and also that such strategies tend to be associated with higher levels of firm performance, particularly those strategies which place emphasis on a greater number of strategic dimensions, and specifically on innovation differentiation.  相似文献   
676.
Abstract

Objectives: This study sought to describe self-reported barriers to professional help seeking among college students who are at elevated suicide risk and determine if these barriers vary by demographic and clinical characteristics. Participants: Participants were 165 non–treatment seekers recruited as part of a Web-based treatment linkage intervention for college students at elevated suicide risk (from September 2010 through December 2011). Methods: Data were collected using Web-based questionnaires. Two coders coded students’ responses to an open-ended question about reasons for not seeking professional help. Results: The most commonly reported barriers included perception that treatment is not needed (66%), lack of time (26.8%), and preference for self-management (18%). Stigma was mentioned by only 12% of students. There were notable differences based on gender, race, and severity of depression and alcohol abuse. Conclusions: Efforts aimed at reaching students at elevated risk for suicidal behavior should be particularly sensitive to these commonly described barriers.  相似文献   
677.
678.
This article proposes a new theoretical approach to the analysis of hegemonic ethnicity through an examination of the construction of white ethnicity among Ashkenazim (Jews of European origin) in Israel. Contrary to the theory of symbolic ethnicity, I argue that “Ashkenaziness” in Israel is not an optional, voluntary identity; rather, it is constituted by employing narratives that continually establish cultural, color‐based, and ethnic boundaries between Ashkenazim and Mizrahi Jews. In certain social and ideological circumstances, however, boundary marking is not enough to maintain a privileged status. From the narratives of Ashkenazi Jews—the Israeli version of whites—it emerges that not only do they demarcate social boundaries between themselves and other groups, thereby preserving the ethnic hierarchy, but they are constantly engaged in blurring or erasing these same boundaries, allowing Ashkenazim to remain a transparent, unmarked social category. This dual practice of marking and unmarking is a result of the tension between the Jewish‐Zionist and Western‐secular images of the state. While Israel's Jewish discourse supposedly negates intra‐Jewish ethnic conflicts, the Western ideal identifies Ashkenazim with the state, thus solidifying their power and preserving their privileged status.  相似文献   
679.
This study explored the effects of optimism, intrinsic motivation, and family relations on vocational identity in college students in the United States and South Korea. The results yielded support for the hypothesized multivariate model. Across both cultures, optimism was an important contributing factor to vocational identity, and intrinsic motivation partially mediated the link from optimism to vocational identity. In addition, family relations moderated the mediation effect of intrinsic motivation with American students but not Korean students. With Korean students, family relations moderated the direct link from optimism to vocational identity. These results have significant implications for counseling to promote vocational identity development for diverse college students.  相似文献   
680.
This paper considers the lives of children living in a large informal settlement in central Accra, Ghana. Its contention is that children remain largely absent from the renewal of interest in slums and that where they do feature it is largely as objects of risk and vulnerability. Such an exclusive focus, it is argued, risks effacing the ways in which children are capable of actively confronting the terrible constraints posed by slum environments and the ‘talent for living’ that this involves. Drawing upon the findings of a small qualitative exploratory research project, the paper examines sources of support and cooperation between children and how their decisions to work are perceived as a strategy to actively support mothers and families struggling for a subsistence.  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