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   717篇
  免费   30篇
管理学   97篇
民族学   3篇
人口学   51篇
丛书文集   9篇
理论方法论   97篇
综合类   4篇
社会学   426篇
统计学   60篇
  2023年   7篇
  2022年   4篇
  2021年   4篇
  2020年   16篇
  2019年   24篇
  2018年   33篇
  2017年   45篇
  2016年   29篇
  2015年   25篇
  2014年   28篇
  2013年   116篇
  2012年   24篇
  2011年   30篇
  2010年   26篇
  2009年   14篇
  2008年   17篇
  2007年   26篇
  2006年   36篇
  2005年   21篇
  2004年   11篇
  2003年   14篇
  2002年   22篇
  2001年   13篇
  2000年   15篇
  1999年   13篇
  1998年   6篇
  1997年   10篇
  1996年   7篇
  1995年   8篇
  1994年   9篇
  1993年   7篇
  1992年   7篇
  1991年   10篇
  1990年   3篇
  1989年   3篇
  1988年   4篇
  1987年   4篇
  1986年   10篇
  1985年   8篇
  1984年   10篇
  1983年   4篇
  1982年   2篇
  1981年   4篇
  1980年   3篇
  1979年   2篇
  1977年   3篇
  1976年   4篇
  1975年   2篇
  1970年   1篇
  1967年   1篇
排序方式: 共有747条查询结果,搜索用时 0 毫秒
741.
Many prosocial behaviors involve social risks such as speaking out against a popular opinion, bias, group norm, or authority. However, little is known about whether adolescents’ prosocial tendencies develop over time with their perceptions of social risks. This accelerated longitudinal study used within-subject growth-curve analyses to test the link between adolescents' prosocial tendencies and social risk perceptions. Adolescents completed self-reports annually for 3 years (N = 893; Mage = 12.30 years, 10–14 years at Wave 1, and 10–17 years across the full study period; 50% girls, 33% White non-Latinx, 27% Latinx, 20% African American, 20% mixed/other race). The association between social risk tolerance and prosocial tendencies changed significantly across adolescence. Specifically, for younger adolescents, more prosocial tendencies were associated significantly with less social risk tolerance, whereas for relatively older adolescents, more prosocial tendencies were associated marginally with more social risk tolerance. Additional individual differences by empathy (but not sensation seeking) emerged. These findings suggest that prosocial tendencies across adolescence may be associated with an underlying ability to tolerate social risks.  相似文献   
742.
The increasing interest in implementing social-emotional learning (SEL) interventions within schools calls for more reliable and valid assessment tools to measure the effectiveness of SEL programs. We investigated the factor structure and psychometric properties of the Social Skills Improvement System – Social-Emotional Learning Edition (SSIS SEL) with a group of ethnically and socio-economically diverse grade 3 students in Ontario, Canada (n = 427). The SSIS SEL is an age-normed measure used for the evaluation of interventions and prevention initiatives. Data collected included both teacher-report and student self-report measures. The factor structure proposed by the scale developers was not replicated using this smaller single grade sample. However, the study demonstrates evidence of good construct and convergent validity supporting the novel factor structure. Results from this study suggest that more research on the SSIS SEL's application in real-world intervention research programs is needed.  相似文献   
743.
Analyses of operational ideology—the pattern of correlations between different political attitudes—in the American public generally assume “spatial” models of ideology. Using Latent Class Analysis, we relax many of these assumptions by treating operational ideology as a latent categorical variable and analyze the changing structure of American operational ideology between 2004 and 2020. We find that some Americans during this period held consistently liberal or conservative views and were well sorted into the “correct” political parties. For other Americans, however, we observe complex and shifting relationships between partisanship and economic, moral, and racial attitudes. We find that Racial Justice Communitarians consistently prefer to identify as Democrats, while Nativist Communitarians and Libertarians both tended to identify with whatever party won the most recent presidential election. Future studies of operational ideology should be wary of simplifying assumptions that obscure important dynamics in American politics.  相似文献   
744.
Today's markets are characterized by time and product quality-based competition. Companies must compete through their ability to manage the whole cycle of product realization and delivery, from the initial concept through to delivery and support at the customer. They must do this through managing an integrated company, not a set of separate functions. This paper addresses the issue of how companies should develop operations strategies for engineering and manufacturing combined. It uses field research into 15 engineering companies to develop the concept of the manufacturing system mission, and proposes strategic choices for manufacturing, engineering and linked functions.  相似文献   
745.
The goal of this study was to better understand similarities and differences in preschool children's expression of needs and prosocial responsiveness to peers’ needs across two culturally distinct contexts. Preschoolers were observed in a semi-naturalistic design across rural Mexico and urban Canada, wherein they were instructed to build a tower with blocks. Three- to 6-year-olds (N = 306; 48% female) were divided into 64 peer groups. We coded for children's expression of needs (instrumental, material, or emotional), responses to prosocial opportunities (prosociality, denial, or no response), prosociality without an apparent need (spontaneous prosociality), and types of prosocial behavior (helping, sharing, or comforting). While instrumental and material needs were expressed similarly across both samples, Tzotzil Maya children expressed fewer emotional needs than Canadian children. Failing to respond to others’ needs, followed by denial, were the most frequent need-provoked response in both countries; surprisingly, only 9% of needs received a prosocial response. Though need-provoked prosociality was rare in both cultural contexts, children engaged in considerable spontaneous prosociality which varied as a function of age, gender, and cultural context. Lastly, Canadian more than Tzotzil Maya children denied emotional and instrumental needs (but not material needs). The findings inform how cultural practices may shape the presentation of needs and prosocial responsiveness in peer interactions.  相似文献   
746.
Production in knowledge and data-intensive industries is powered by work that can, in theory, be done from anywhere, via cloudwork platforms. Cloudwork platforms govern data value chains in distinct ways to concentrate power and extract value at the global scale. We argue that unpaid labour is a systemic mechanism of accumulation in these digital value networks. In this paper we demonstrate how it is tied to platform business models and facilitated by elements of platform governance including monopsony power, a high degree of spatial flexibility in sourcing labour, regulatory unaccountability and digital enclosure. We draw on a survey of 699 workers on 14 platforms in 74 countries to show that unpaid labour is an engine of South–North value extraction, and workers in the global South perform more unpaid labour than counterparts in the global North. Our findings have important ramifications our understanding of the changing international division of labour and platform capitalism.  相似文献   
747.
The transfer of expert knowledge to novices is one means of improving decision quality. Research needs to identify (1) the knowledge to be transferred to novices, and (2) the best method for transferring that knowledge. Studies that compare the judgment behavior of experienced and novice auditors address the first issue. The present study addresses the second issue in the context of using a computer-assisted training (CAT) program. CAT was selected for study because of evidence that it can both improve the effectiveness and reduce the costs of training. An experiment was conducted in which two factors were manipulated: (1) the design of the human-computer interface of the CAT program, and (2) the content of training tasks. The judgment of interest involved causal reasoning about the relationships between various internal control procedures and possible errors. The results indicate that alternative styles of interaction with a CAT program differ in terms of learning effectiveness. In addition, there was also evidence that training task content affected learning.  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