全文获取类型
收费全文 | 901篇 |
免费 | 36篇 |
专业分类
管理学 | 78篇 |
民族学 | 5篇 |
人口学 | 75篇 |
丛书文集 | 7篇 |
理论方法论 | 112篇 |
综合类 | 4篇 |
社会学 | 591篇 |
统计学 | 65篇 |
出版年
2023年 | 7篇 |
2022年 | 3篇 |
2021年 | 5篇 |
2020年 | 17篇 |
2019年 | 26篇 |
2018年 | 18篇 |
2017年 | 49篇 |
2016年 | 21篇 |
2015年 | 21篇 |
2014年 | 20篇 |
2013年 | 187篇 |
2012年 | 32篇 |
2011年 | 28篇 |
2010年 | 27篇 |
2009年 | 24篇 |
2008年 | 33篇 |
2007年 | 33篇 |
2006年 | 26篇 |
2005年 | 22篇 |
2004年 | 17篇 |
2003年 | 19篇 |
2002年 | 25篇 |
2001年 | 24篇 |
2000年 | 22篇 |
1999年 | 20篇 |
1998年 | 22篇 |
1997年 | 16篇 |
1996年 | 20篇 |
1995年 | 15篇 |
1994年 | 13篇 |
1993年 | 11篇 |
1992年 | 14篇 |
1991年 | 2篇 |
1990年 | 8篇 |
1988年 | 8篇 |
1987年 | 5篇 |
1986年 | 7篇 |
1985年 | 9篇 |
1984年 | 14篇 |
1983年 | 3篇 |
1982年 | 8篇 |
1981年 | 7篇 |
1980年 | 5篇 |
1979年 | 5篇 |
1978年 | 2篇 |
1977年 | 3篇 |
1976年 | 3篇 |
1974年 | 2篇 |
1973年 | 2篇 |
1967年 | 2篇 |
排序方式: 共有937条查询结果,搜索用时 47 毫秒
801.
This exploratory study has three objectives: (1) to understand the various ways academics, consultants, and practitioners conceptualize operating reserves; (2) to explore differences among academic findings, consultant recommendations, and nonprofit leader perceptions of operating reserves; and (3) to identify how practitioners operationalize operating reserves within their organizations. Using intensive interviews with nonprofit executives, we find that the operating reserve ratio (ORR) commonly used in the nonprofit literature does not accurately indicate whether an organization holds an operating reserve according to nonprofit leaders. In addition, results indicate that experienced nonprofit leaders perceive a variety of other fund types including endowment and investment savings as well as ability to borrow, other assets, sister foundations, and donor networks as legitimate substitutes for a reserve. 相似文献
802.
The Home and the ‘Hood: Associations Between Housing and Neighborhood Contexts and Adolescent Functioning
下载免费PDF全文
![点击此处可从《Journal of research on adolescence》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Margaret C. Elliott Tama Leventhal Elizabeth A. Shuey Alicia Doyle Lynch Rebekah Levine Coley 《Journal of research on adolescence》2016,26(1):194-206
Adolescents from low‐income families face various opportunities and constraints as they develop, with possible ramifications for their well‐being. Two contexts of particular importance are the home and the neighborhood. Using adolescent data from the first two waves of the Three‐City Study (N = 1,169), this study explored associations among housing problems and neighborhood disorder with adolescents' socioemotional problems, and how these associations varied by parental monitoring and gender. Results of hierarchical linear models suggest that poor‐quality housing was most predictive of the functioning of girls and of adolescents with restrictive curfews, whereas neighborhood disorder was a stronger predictor for boys. Implications for future research on associations between housing and neighborhood contexts and adolescent development are discussed. 相似文献
803.
When children and young people run away from home or care it is most often indicative of problems in their lives. Reporting on the findings of a recent evaluation, this study considers the role, delivery and impact of ‘return home welfare interviews’ (RHWIs) in identifying children and young people in need. It concludes that RHWIs function as an effective screening mechanism and can be facilitative in creating multiple pathways for referral to appropriate services. It challenges assumptions about the unsuitability of the police in undertaking RHWIs and highlights the importance of context, training and appropriate resourcing to the success of police delivery. 相似文献
804.
Suicide and suicide risk in lesbian, gay, bisexual, and transgender populations: review and recommendations 总被引:5,自引:5,他引:0
Haas AP Eliason M Mays VM Mathy RM Cochran SD D'Augelli AR Silverman MM Fisher PW Hughes T Rosario M Russell ST Malley E Reed J Litts DA Haller E Sell RL Remafedi G Bradford J Beautrais AL Brown GK Diamond GM Friedman MS Garofalo R Turner MS Hollibaugh A Clayton PJ 《Journal of homosexuality》2011,58(1):10-51
Despite strong indications of elevated risk of suicidal behavior in lesbian, gay, bisexual, and transgender people, limited attention has been given to research, interventions or suicide prevention programs targeting these populations. This article is a culmination of a three-year effort by an expert panel to address the need for better understanding of suicidal behavior and suicide risk in sexual minority populations, and stimulate the development of needed prevention strategies, interventions and policy changes. This article summarizes existing research findings, and makes recommendations for addressing knowledge gaps and applying current knowledge to relevant areas of suicide prevention practice. 相似文献
805.
Ethnic Enclaves and the Earnings of Immigrants 总被引:1,自引:0,他引:1
A large literature in sociology concerns the implications of immigrants’ participation in ethnic enclaves for their economic
and social well-being. The “enclave thesis” speculates that immigrants benefit from working in ethnic enclaves. Previous research
concerning the effects of enclave participation on immigrants’ economic outcomes has come to mixed conclusions as to whether
enclave effects are positive or negative. In this article, we seek to extend and improve upon past work by formulating testable
hypotheses based on the enclave thesis and testing them with data from the 2003 New Immigrant Survey (NIS), employing both
residence-based and workplace-based measures of the ethnic enclave. We compare the economic outcomes of immigrants working
in ethnic enclaves with those of immigrants working in the mainstream economy. Our research yields minimal support for the
enclave thesis. Our results further indicate that for some immigrant groups, ethnic enclave participation actually has a negative
effect on economic outcomes. 相似文献
806.
807.
808.
809.
Drug developers are required to demonstrate substantial evidence of effectiveness through the conduct of adequate and well‐controlled (A&WC) studies to obtain marketing approval of their medicine. What constitutes A&WC is interpreted as the conduct of randomized controlled trials (RCTs). However, these trials are sometimes unfeasible because of their size, duration, and cost. One way to reduce sample size is to leverage information on the control through a prior. One consideration when forming data‐driven prior is the consistency of the external and the current data. It is essential to make this process less susceptible to choosing information that only helps improve the chances toward making an effectiveness claim. For this purpose, propensity score methods are employed for two reasons: (1) it gives the probability of a patient to be in the trial, and (2) it minimizes selection bias by pairing together treatment and control within the trial and control subjects in the external data that are similar in terms of their pretreatment characteristics. Two matching schemes based on propensity scores, estimated through generalized boosted methods, are applied to a real example with the objective of using external data to perform Bayesian augmented control in a trial where the allocation is disproportionate. The simulation results show that the data augmentation process prevents prior and data conflict and improves the precision of the estimator of the average treatment effect. 相似文献
810.