全文获取类型
收费全文 | 8804篇 |
免费 | 286篇 |
国内免费 | 1篇 |
专业分类
管理学 | 1131篇 |
民族学 | 59篇 |
人口学 | 774篇 |
丛书文集 | 29篇 |
理论方法论 | 810篇 |
综合类 | 78篇 |
社会学 | 4143篇 |
统计学 | 2067篇 |
出版年
2023年 | 73篇 |
2022年 | 37篇 |
2021年 | 64篇 |
2020年 | 166篇 |
2019年 | 243篇 |
2018年 | 276篇 |
2017年 | 375篇 |
2016年 | 270篇 |
2015年 | 195篇 |
2014年 | 267篇 |
2013年 | 1661篇 |
2012年 | 303篇 |
2011年 | 297篇 |
2010年 | 208篇 |
2009年 | 228篇 |
2008年 | 242篇 |
2007年 | 225篇 |
2006年 | 230篇 |
2005年 | 213篇 |
2004年 | 174篇 |
2003年 | 165篇 |
2002年 | 191篇 |
2001年 | 220篇 |
2000年 | 211篇 |
1999年 | 193篇 |
1998年 | 141篇 |
1997年 | 129篇 |
1996年 | 107篇 |
1995年 | 96篇 |
1994年 | 140篇 |
1993年 | 105篇 |
1992年 | 127篇 |
1991年 | 130篇 |
1990年 | 116篇 |
1989年 | 104篇 |
1988年 | 88篇 |
1987年 | 93篇 |
1986年 | 91篇 |
1985年 | 89篇 |
1984年 | 91篇 |
1983年 | 68篇 |
1982年 | 72篇 |
1981年 | 48篇 |
1980年 | 60篇 |
1979年 | 63篇 |
1978年 | 48篇 |
1977年 | 48篇 |
1976年 | 38篇 |
1975年 | 47篇 |
1974年 | 40篇 |
排序方式: 共有9091条查询结果,搜索用时 343 毫秒
1.
Sarah Long 《Disability & Society》2015,30(7):1118-1122
The week beginning 29 June 2015 is not just historic for the closure of the Independent Living Fund in the United Kingdom, but for me was the week they decided that my life is not worth investing in; they being NHS England, NICE and, with them, the Department of Health. They chose not to support the enzyme replacement therapy that has been not only keeping me alive, but giving me a quality of life – enabling me to return to finish my Disability Studies PhD exploring how Christian leaders explain disability, where ethics have become the main topic, and to rebuild my career – or so I thought. 相似文献
2.
In this article, we propose a novel approach for testing the equality of two log-normal populations using a computational approach test (CAT) that does not require explicit knowledge of the sampling distribution of the test statistic. Simulation studies demonstrate that the proposed approach can perform hypothesis testing with satisfying actual size even at small sample sizes. Overall, it is superior to other existing methods. Also, a CAT is proposed for testing about reliability of two log-normal populations when the means are the same. Simulations show that the actual size of this new approach is close to nominal level and better than the score test. At the end, the proposed methods are illustrated using two examples. 相似文献
3.
Cancho Vicente G. Macera Márcia A. C. Suzuki Adriano K. Louzada Francisco Zavaleta Katherine E. C. 《Lifetime data analysis》2020,26(2):221-244
Lifetime Data Analysis - Frailty models are generally used to model heterogeneity between the individuals. The distribution of the frailty variable is often assumed to be continuous. However, there... 相似文献
4.
5.
Open innovation and absorptive capacity are two concepts based on the idea that companies can leverage the knowledge generated externally to improve their innovation performance. The aim of this paper is to analyse the joint effect of open innovation and absorptive capacity on a firm's radical innovation. Open innovation is expressed in terms of external search breadth and depth strategies and absorptive capacity is described by distinguishing between potential and realized absorptive capacity. In order to test our hypotheses, we carried out empirical research in firms operating in high-technology industries. The results indicate that internal routines and processes for absorbing external knowledge help explain radical innovation as they show a significant effect of potential and realized absorptive capacity. Also, there is a moderating effect of absorptive capacity on open innovation. Specifically, potential absorptive capacity exerts a positive effect on the relationship between external search breadth and depth and radical innovation. Realized absorptive capacity moderates the influence of external search breadth. These findings confirm the complementary nature of absorptive capacity and open innovation search strategies on radical innovation. 相似文献
6.
Thomas K. Kenemore 《Child and Adolescent Social Work Journal》2002,19(4):269-270
7.
This paper proposes ‘comprehensive neighbourhood mapping’ as a schema for gathering and interpreting information within a given geographical area which is informed by imaginative thinking about the safety of children and young people from sexual crime. It would build upon current forms of profiling by local authorities, health authorities and central Government. CNM would actively involve local people, in partnership with agencies, in ‘mapping’ danger points and support points. Eight components are discussed, including environmental issues, locations of sex offenders, sites where teenagers meet and share information, supportive individuals and organizations. Some issues for pilot projects are discussed, including the need to set up planning and implementation groups and to integrate CNM into wider child protection and community safety strategies. CNM is grounded in an ecological perspective which sees partnership approaches as essential and believes an overarching view of neighbourhood needs, based on detailed local information and understanding of how different forms of harm interconnect, is crucial in developing child protection strategies. At times of acute official anxiety about community ‘lynch‐mob’ reactions to known paedophiles, CNM aims to build communities which instead are informed and thoughtful about child protection. Copyright © 2002 John Wiley & Sons, Ltd. 相似文献
8.
9.
H. Küchenhoff 《Statistical Papers》1995,36(1):41-47
The simple logistic regression model with normal measurement error and normal regressor is shown to be identifiable without any extra information about the measurement error. The multiple logistic regression model with more than one regressor variable measured with error is not identifiable. If the covariance matrix of the measurement error is known up to a scalar factor, the model is identified. Further we discuss why in spite of the identifiability the models cannot be estimated in a reasonable way without extra information about the measurement error. 相似文献
10.
Brent A. McBride Sarah J. Schoppe Thomas R. Rane 《Journal of marriage and the family》2002,64(4):998-1011
This study examined variations in the relationships among child characteristics, parenting stress, and parental involvement. Participants were 100 two‐parent families with preschool‐aged children. Self‐report and interview data were collected to measure parental involvement, as well as perceptions of child temperament and parental stress. Analyses revealed significant, yet somewhat different, associations between child temperament and parental stress for mothers and fathers. More significant associations were found between perceptions of child temperament and involvement for fathers than for mothers. The associations between child temperament and parental stress and involvement differed on the basis of child and parent gender. Results are discussed in terms of future research on father involvement, as well as programs designed to encourage fathers to assume more active parental roles. 相似文献