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   506篇
  免费   20篇
管理学   88篇
民族学   3篇
人口学   26篇
丛书文集   2篇
理论方法论   76篇
综合类   4篇
社会学   277篇
统计学   50篇
  2023年   4篇
  2021年   3篇
  2020年   10篇
  2019年   15篇
  2018年   20篇
  2017年   25篇
  2016年   20篇
  2015年   16篇
  2014年   11篇
  2013年   75篇
  2012年   13篇
  2011年   15篇
  2010年   15篇
  2009年   7篇
  2008年   12篇
  2007年   11篇
  2006年   26篇
  2005年   17篇
  2004年   6篇
  2003年   11篇
  2002年   22篇
  2001年   14篇
  2000年   14篇
  1999年   12篇
  1998年   6篇
  1997年   8篇
  1996年   5篇
  1995年   7篇
  1994年   9篇
  1993年   7篇
  1992年   7篇
  1991年   11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   4篇
  1979年   2篇
  1977年   3篇
  1976年   4篇
  1975年   2篇
  1973年   1篇
  1970年   1篇
  1967年   1篇
排序方式: 共有526条查询结果,搜索用时 640 毫秒
31.
This short‐term longitudinal study investigated 918 students' school‐related affect across the transition to high school. The study focused specifically on the moderating effect of change in student ethnic congruence from middle to high school. Results indicate that students experiencing more ethnic incongruence from middle to high school, in particular African American and male students, reported declining feelings of school belonging over time. Moreover, students experiencing ethnic incongruence also had increasing worries about their academic success. These results suggest that the changing school demographics from middle school to high school may negatively impact students' school‐related affect, especially if they move to high schools which include fewer students who are ethnically similar to themselves.  相似文献   
32.
33.
A training program was devised for selected child welfare workers to conduct parent groups in the Missouri Neglect Demonstration Project. Welfare workers were trained to conduct parent groups that focused on parenting skills, self-advocacy, and social and economic resources. In contrast to case manager referrals, the workshops provided education directly and helped parents to develop resources. One of the goals was to have staff and parents collaborate to improve referral services and resources. The importance of this type of program was demonstrated by a literature review of parent trainings which found that: (a) few programs specifically addressed child neglect; (b) outcome evaluations of programs were scarce; and (c) a national extension study supported topics chosen.  相似文献   
34.
Analysis reported here examined youth in residential group home placements in order to better understand how sexual behaviors, drug use, and environmental experiences differ by race and gender subgroups. Data were collected from 336 youth aged 14–21 residing in one of 41 group homes in Maryland. Chi square and logistic regression analyses were done to determine differences on study variables among the race-gender groupings. Results demonstrate not only significant health concerns overall but notable differences were also found between race-gender subgroups. Findings suggest that found race-gender subgroup differences might be informative for tailoring programming for youth of residential group home settings.  相似文献   
35.
Despite the hype surrounding the value‐added potential of e‐business for contemporary firms, the recent technology downturn was marked by poor customer satisfaction from investment in e‐business initiatives. An apparent mismatch between customer expectations and vendor offerings suggested a lack of appropriate methods and techniques for evaluating e‐business. This article draws from a longitudinal research study on the deployment, hosting and integration of application service provisioning (ASP), an e‐business model targeted mainly at small and medium‐sized businesses (SMBs). Using system dynamics as a methodology that addresses the inherent complexity of the ASP model, the article demonstrates how a series of complex inter‐relationships between key performance indicators (KPIs) will impact the business value for customers from ASP vendor products and services. The lessons from this research will be particularly relevant for existing and future ASP vendors and customers.  相似文献   
36.
The Collaborative Demonstration Program for Homeless Individuals is providing an opportunity for several community agencies in the United States to explore innovative intervention and treatment strategies to address the needs of homeless people with co-occurring (mental illness and substance abuse) disorders. This cooperative agreement, funded jointly by the Center for Mental Health Services (CMHS) and the Center for Substance Abuse Treatment (CSAT), is a $3 million project supporting programs in various community agencies to develop, document, and evaluate programs for persons who are homeless with co-occurring disorders to be used as models in other communities. The program models include: Assertive Community Treatment, Psychosocial Rehabilitation, Therapeutic Community, and an integrated treatment model. The first phase of the two-phase project funded 16 programs in the U.S. to develop manuals within their primary treatment modalities for homeless people with co-occurring disorders. For Phase II of the project, six of the 16 model programs were competitively selected to demonstrate program impact through formal program evaluation efforts. The data derived from the various projects will be compiled into a compendium of information for state agencies and community service providers throughout the U.S.  相似文献   
37.
38.
Across three experiments, we examined 9‐ and 11‐month‐olds' mappings of novel sound properties to novel animal categories. Infants were familiarized with novel animal–novel sound pairings (e.g., Animal A [red]–Sound 1) and then tested on: (1) their acquisition of the original pairing and (2) their generalization of the sound property to a new member of a familiarized category (e.g., Animal A [blue]–Sound 1). When familiarized with a single exemplar of a category, 11‐month‐olds showed no evidence of acquiring or generalizing the animal–sound pairings. In contrast, 11‐month‐olds learnt the original animal–sound mappings and generalized the sound property to a novel member of that category when familiarized with multiple exemplars of a category. Finally, when familiarized with multiple exemplars, 9‐month‐old infants learnt the original animal–sound pairing, but did not extend the novel sound property. The results of these experiments provide evidence for developmental differences in the facilitative role of multiple exemplars in promoting the learning and generalization of information.  相似文献   
39.
Monozygotic twins reared in different countries are rare. Data from several available cases have been combined in group findings, masking cultural effects on behavior. The present study compared behavioral and health-related findings for unusual monozygotic female twins raised apart in South Korea and the United States. The 37-year-old twins were exceptional in being reared under dramatically different circumstances with limited telephone and Internet contact. Primary outcome measures included life history events, physical and health-related characteristics, and diverse behavioral traits. Striking similarities and differences were noted. Findings are discussed with reference to genetic and cultural influences on health and behavior.  相似文献   
40.
Reported membership of voluntary organizations is taken as an index of community participation. Data derived from a Mental Health Survey in Canberra in 1971 are analysed and participation behaviour compared with information from American participation studies. A high participation rate was expected because of Canberra's high ranking on socio-economic variables compared with Australia as a whole. However, nearly half of the adults sampled report belonging to no formal organizations. Sex, age and socio-economic status are found to be related to joining behaviour and conform to well-established findings in the United States.  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