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   853篇
  免费   56篇
管理学   60篇
民族学   8篇
人口学   92篇
丛书文集   13篇
理论方法论   132篇
综合类   7篇
社会学   552篇
统计学   45篇
  2023年   16篇
  2022年   7篇
  2021年   9篇
  2020年   32篇
  2019年   30篇
  2018年   35篇
  2017年   55篇
  2016年   43篇
  2015年   33篇
  2014年   41篇
  2013年   158篇
  2012年   26篇
  2011年   39篇
  2010年   25篇
  2009年   20篇
  2008年   34篇
  2007年   27篇
  2006年   27篇
  2005年   26篇
  2004年   36篇
  2003年   10篇
  2002年   21篇
  2001年   15篇
  2000年   8篇
  1999年   9篇
  1998年   11篇
  1997年   5篇
  1996年   10篇
  1995年   10篇
  1994年   11篇
  1993年   6篇
  1992年   9篇
  1991年   10篇
  1990年   4篇
  1989年   9篇
  1988年   8篇
  1987年   10篇
  1985年   2篇
  1984年   3篇
  1983年   3篇
  1982年   2篇
  1981年   1篇
  1980年   2篇
  1979年   1篇
  1977年   1篇
  1976年   3篇
  1975年   1篇
  1974年   1篇
  1971年   1篇
  1970年   1篇
排序方式: 共有909条查询结果,搜索用时 250 毫秒
841.
842.
Conditions that foster and hinder participatory research are examined, using examples from one such research project aimed at dropout reduction undertaken with students in a “last chance” high school. Student researchers sometimes used racial, gender, and social class differences to gain power and display undemocratic behavior within the group. Dilemmas arose as small-scale actions were implemented that seemed to threaten the power and authority of teachers and administrators both within the alternative school and the traditional high schools that fed into it. The limits to extending democracy to students through research are identified, drawing upon recent theoretical work on feminist pedagogy and participatory research. The conclusion is that youths need to be taken seriously as knowers and potential agents of change and that adults who want to work with adolescent researchers need to model democratic teaching and leadership.  相似文献   
843.
We developed three Professional Development Laboratories: Centers for Literacy and Community Services that addressed four pressing needs in the current urban school crisis: the preparation of in-service teachers to be literacy specialists, the dire need for qualified teachers in urban settings, the professional development of uncertified urban teachers, and the literacy needs of the children and families these teachers serve. These centers were housed in three inner-city schools rather than at the university and thus were able to serve larger numbers of children. Since many of the teachers in these schools are novice or uncertified teachers, we offered on-site in-service courses in order to enhance their ability to help their students. By housing the Centers for Literacy and Community Services on site in the schools, we sought to reach students and families who might otherwise not be able to avail themselves of these services. Unique to this project was that our graduate literacy education students tutored students on site in schools, the university faculty worked alongside the graduate students, and both students and faculty provided services to enhance the professional development of teachers and administrators in the area of literacy. Additionally, this project was distinguished by the inclusion of a component designed to provide literacy education services to the families and caregivers of the children.  相似文献   
844.
Two experiments examined how 7- and 8-year-old children, 9- and 10-year-old children, and adults process mismatched, task-related speech and gesture differently as a function of development. Participants watched videotapes of children speaking and gesturing about the concept of conservation. Using a recognition paradigm, we assessed immediate memory for information conveyed in mismatched speech and gesture. In Experiment 1, we used recognition of verbal statements to probe participants' memory, whereas in Experiment 2, we used recognition of gestural statements to probe memory. When probed with verbal statements in Experiment 1, 9- and 10-year-old children failed to retrieve gestured information. When probed with gestural statements in Experiment 2, 9- and 10-year-old children failed to retrieve verbal information. In contrast, the younger children and adults showed retrieval of both verbal and gestural information across both recognition methods in Experiments 1 and 2. These results suggest a U-shaped function with the 9- and 10-year-old children showing a limitation in the ability to process contradictory messages simultaneously conveyed in two modalities. Implications for identifying a transitional period in the development of representational skills are discussed.  相似文献   
845.
846.
847.
Although scholars have examined marketing encroachment on public relations in the for-profit sector, little research has been done on encroachment by fund raising in the nonprofit sector. This article documents fund-raising encroachment and theorizes about external and internal factors contributing to it. It concludes that role as a technician, perception of public relations as a secondary function, organizational turbulence, and dependency on private gifts lead to the takeover of the public relations department.  相似文献   
848.
The anniversary model for the annual repetition of parasuicide (attempted suicide) is described. In order to demonstrate the existence of such effects in individuals, the Range Test for circular data is applied to data collected over a 2-year period from a specific case from the Edinburgh Regional Poisoning Treatment Centre. The use of this model in predicting future clusters of parasuicide episodes is then discussed.  相似文献   
849.
Most research on the effectiveness of prenatal care has focused on birth outcomes and has found small or no effects. It is possible, however, that prenatal care is “too little too late” to improve pregnancy outcomes in the aggregate, but that it increases the use of pediatric health care or improves maternal health-related parenting practices and, ultimately, child health. We use data from the Fragile Families and Child Wellbeing birth cohort study that have been augmented with hospital medical record data to estimate effects of prenatal care timing on pediatric health care utilization and health-related parenting behaviors during the first year of the child’s life. We focus on maternal postpartum smoking, preventive health care visits for the child, and breastfeeding. We use a multi-pronged approach to address the potential endogeneity of the timing of prenatal care. We find that first trimester prenatal care appears to decrease maternal postpartum smoking by about 5 percentage points and increase the likelihood of 4 or more well-baby visits by about 1 percentage point, and that it may also have a positive effect on breastfeeding. These findings suggest that there are benefits to standard prenatal care that are generally not considered in evaluations of prenatal care programs and interventions.  相似文献   
850.
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