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   4516篇
  免费   73篇
  国内免费   3篇
管理学   505篇
民族学   27篇
人口学   400篇
丛书文集   26篇
理论方法论   336篇
综合类   87篇
社会学   1975篇
统计学   1236篇
  2023年   30篇
  2021年   24篇
  2020年   73篇
  2019年   135篇
  2018年   118篇
  2017年   202篇
  2016年   120篇
  2015年   107篇
  2014年   120篇
  2013年   937篇
  2012年   148篇
  2011年   120篇
  2010年   82篇
  2009年   104篇
  2008年   100篇
  2007年   88篇
  2006年   79篇
  2005年   79篇
  2004年   73篇
  2003年   57篇
  2002年   87篇
  2001年   91篇
  2000年   77篇
  1999年   92篇
  1998年   79篇
  1997年   68篇
  1996年   58篇
  1995年   76篇
  1994年   58篇
  1993年   62篇
  1992年   71篇
  1991年   75篇
  1990年   78篇
  1989年   62篇
  1988年   45篇
  1987年   46篇
  1986年   51篇
  1985年   58篇
  1984年   57篇
  1983年   41篇
  1982年   39篇
  1981年   34篇
  1980年   41篇
  1979年   49篇
  1978年   38篇
  1977年   28篇
  1976年   23篇
  1974年   23篇
  1973年   20篇
  1971年   21篇
排序方式: 共有4592条查询结果,搜索用时 15 毫秒
1.
Media publicity is an important resource for contemporary voluntary associations, but very little is actually known about the resources and organizational characteristics that are most important for getting media attention. To address this question, we collected and analyzed data on the organizational attributes and news publicity of 739 nonprofit organizations in New York City. We find that an organization's income, paid staff, membership size, and library resources are significantly related to getting media publicity, whereas the number of chapter affiliations is inversely related to publicity. Association type is also a significant factor that influences an organization's ability to get publicity. We discuss the implications that these findings have for current debates about advocacy and civic engagement in the nonprofit sector.  相似文献   
2.
3.
If a population contains many zero values and the sample size is not very large, the traditional normal approximation‐based confidence intervals for the population mean may have poor coverage probabilities. This problem is substantially reduced by constructing parametric likelihood ratio intervals when an appropriate mixture model can be found. In the context of survey sampling, however, there is a general preference for making minimal assumptions about the population under study. The authors have therefore investigated the coverage properties of nonparametric empirical likelihood confidence intervals for the population mean. They show that under a variety of hypothetical populations, these intervals often outperformed parametric likelihood intervals by having more balanced coverage rates and larger lower bounds. The authors illustrate their methodology using data from the Canadian Labour Force Survey for the year 2000.  相似文献   
4.
Two habituation experiments were conducted to investigate how 4‐month‐old infants perceive partly occluded shapes. In the first experiment, we presented a simple, partly occluded shape to the infants until habituation was reached. Then we showed either a probable completion (one that would be predicted on the basis of both local and global cues) or an improbable completion. Longer looking times were found for the improbably completed shape (compared to probable and control conditions), suggesting that the probable shape was perceived during partial occlusion. In the second experiment, infants were habituated to more ambiguous partly occluded shapes, where local and global cues would result in different completions. For adults, the percept of these shapes is usually dominated by global influences. However, after habituation the infants looked longer at the globally completed shapes. These results suggest that by the age of 4 months, infants are able to infer the perceptual completion of partly occluded shapes, but for more ambiguous shapes, this completion seems to be dominated by local influences.  相似文献   
5.
6.
The passage in the USA of the Americans with Disabilities Act (ADA) has mandated the private sector to provide a sweeping variety of accommodations to individuals with disabilities. Objections to ADA focused on costs in an era of scarcity. These assumptions have been presented with insufficient information about the actual needs of individuals with disabilities. This study is a needs assessment of employees with disabilities at a major university setting. In-depth interviews were conducted with a small number of individuals who described their work situations and accommodations. Findings challenge prevailing assumptions. Costs are often not large, many accommodations are simple, and much depends on the match between a person's disability and job duties. Additionally, informational needs, psychological concerns and the existing social climate provide a more balanced picture of the lives of these employees.  相似文献   
7.
This article provides an overview of social trust, examining its various aspects and components. Trust is best understood in a sociological sense by focusing on its important relational characteristic. Following this lead, the article discusses briefly how social trust relates to social capital and examines factors that shape the development of social trust, along with outcomes related to variations in trust, classifying them by analytical level (i.e., individual, community, group, organizational, and societal). The article concludes by assessing the strengths and weaknesses of existing research and by identifying some important questions that have not yet been adequately addressed.  相似文献   
8.
9.
10.
1. Most diagnosed cases of tardive dyskinesia (TD) are mildly inconvenient to the patient, but some can be severe or life-threatening. The primary goal of intervention should be early identification of abnormal movements related to TD and the prescribing of an appropriate medication regimen. 2. Unless specific training occurs and a specific monitoring system is in place, TD movements may be missed. However, not all movements are necessarily related to TD. 3. Although screening and monitoring are valuable, nothing is more important than prevention. New medications must be developed that do not carry the risk of TD, and other approaches to treat TD must be developed.  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