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   267篇
  免费   0篇
管理学   47篇
人口学   20篇
丛书文集   1篇
理论方法论   20篇
综合类   2篇
社会学   138篇
统计学   39篇
  2023年   2篇
  2019年   3篇
  2018年   2篇
  2017年   3篇
  2016年   3篇
  2015年   4篇
  2013年   34篇
  2012年   4篇
  2011年   6篇
  2010年   5篇
  2009年   2篇
  2008年   6篇
  2007年   7篇
  2006年   9篇
  2005年   8篇
  2004年   7篇
  2003年   3篇
  2002年   11篇
  2001年   4篇
  2000年   5篇
  1999年   8篇
  1998年   4篇
  1997年   5篇
  1996年   5篇
  1995年   2篇
  1994年   5篇
  1993年   4篇
  1992年   4篇
  1991年   4篇
  1990年   7篇
  1989年   6篇
  1988年   6篇
  1987年   4篇
  1986年   4篇
  1985年   6篇
  1983年   9篇
  1982年   2篇
  1981年   6篇
  1979年   3篇
  1978年   4篇
  1977年   9篇
  1976年   3篇
  1975年   2篇
  1974年   6篇
  1973年   3篇
  1972年   4篇
  1971年   4篇
  1970年   3篇
  1968年   2篇
  1965年   1篇
排序方式: 共有267条查询结果,搜索用时 515 毫秒
201.
202.
Loss of energy in peripheric and internal interfaces. Considerations on the management of costs and quality in hospitals Organization development, coming from economics, now has reached the area of service societies. The counselors, who are engaged in hospitals, usually are educated in industral management and have a technical and economical view of organization. The author discusses the question, whether their strategies may fit to the organization of hospital, and he proposes to modify the common approaches of organization development. Before the ?therapy“ as the actual organization development may come to pass, a more detailed ?diagnosis“ has to be made: by an examination of the peripheric and internal interfaces, where usually an avoidable loss of energy occurs. Further more, he proposes a comprehensive management of organizational intersections.  相似文献   
203.
204.
The impact of premature birth on associative learning was evaluated using simple delay eyeblink conditioning in which a tone conditional stimulus was paired with an air puff unconditional stimulus. Fourteen preterm (28–31 weeks gestation) and 11 full‐term infants completed at least 3 conditioning sessions, 1 week apart, at 5 months of age (corrected age). Preterm and full‐term groups demonstrated associative learning, as confirmed by comparison with an unpaired control group. Preterm infants, however, exhibited more variability in their learning rates. The majority of full‐term infants and half the preterm infants exhibited rapid acquisition and gradual extinction of conditional responding. A greater proportion of preterm than full‐term infants failed to acquire conditional responding within 2 training sessions. Differences in associative learning rates were not the result of differences in arousal or attentional processes. Diversity in acquisition rates exposed an increased risk for disrupted infant learning due to premature birth.  相似文献   
205.
Summary. The peer review of grant proposals is very important to academics from all disciplines. Although there is limited research on the reliability of assessments for grant proposals, previously reported single-rater reliabilities have been disappointingly low (between 0.17 and 0.37). We found that the single-rater reliability of the overall assessor rating for Australian Research Council grants was 0.21 for social science and humanities (2870 ratings, 1928 assessors and 687 proposals) and 0.19 for science (7153 ratings, 4295 assessors and 1644 proposals). We used a multilevel, cross-classification approach (level 1, assessor and proposal cross-classification; level 2, field of study), taking into account that 34% of the assessors evaluated more than one proposal. Researcher-nominated assessors (those chosen by the authors of the research proposal) gave higher ratings than panel-nominated assessors chosen by the Australian Research Council, and proposals from more prestigious universities received higher ratings. In the social sciences and humanities, the status of Australian universities had significantly more effect on Australian assessors than on overseas assessors. In science, ratings were higher when assessors rated fewer proposals and apparently had a more limited frame of reference for making such ratings and when researchers were professors rather than non-professors. Particularly, the methodology of this large scale study is applicable to other forms of peer review (publications, job interviews, awarding of prizes and election to prestigious societies) where peer review is employed as a selection process.  相似文献   
206.
Since the inception of electronic community networks in the USA in the 1970s, their goal has remained the provision of support to help the organization of communities at a local level. Despite major commonalities, the authors of this paper identify three generations that coincide roughly with the 1970s, 1980s and 1990s. They are clearly differentiated in terms of technology, applications, organization and key actors. This analysis of the US experience of community networks draws on Karl Mannheim's sociological concept of generations to help understand change and adaptability in sociotechnical systems. It is the combined influence of the respective zeitgeist, the advent of a new technology, the influences of technical predecessors, and the appearance of new groups of actors that lead to a generational change. Options for the future of not-for-profit community networks and the possible emergence of a fourth generation are presented which, in the opinion of the authors, lie in a return to their roots. A brief overview of community networks in Europe is also provided.  相似文献   
207.
208.
Variable selection for nonlinear regression is a complex problem, made even more difficult when there are a large number of potential covariates and a limited number of datapoints. We propose herein a multi-stage method that combines state-of-the-art techniques at each stage to best discover the relevant variables. At the first stage, an extension of the Bayesian Additive Regression tree is adopted to reduce the total number of variables to around 30. At the second stage, sensitivity analysis in the treed Gaussian process is adopted to further reduce the total number of variables. Two stopping rules are designed and sequential design is adopted to make best use of previous information. We demonstrate our approach on two simulated examples and one real data set.  相似文献   
209.
210.
康德对于当代世界的重要意义在于,现代性文化的基本原则在其哲学中得到了最初的或许也是最明确的表达.这些原则包括批判性反思、世俗化、多元性等.虽然其先验哲学的理性奠基的理想、表象-意义分析理论等已不再适用,但就我们仍然处于康德所定义的文化语境来说,当今时代的哲学思考注定无法绕过康德.  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