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   254篇
  免费   9篇
  2023年   3篇
  2021年   5篇
  2020年   4篇
  2019年   7篇
  2018年   7篇
  2017年   7篇
  2016年   11篇
  2015年   3篇
  2014年   7篇
  2013年   38篇
  2012年   13篇
  2011年   16篇
  2010年   4篇
  2009年   3篇
  2008年   9篇
  2007年   11篇
  2006年   10篇
  2005年   6篇
  2004年   7篇
  2003年   4篇
  2002年   12篇
  2001年   4篇
  2000年   3篇
  1999年   4篇
  1998年   4篇
  1997年   3篇
  1995年   3篇
  1993年   2篇
  1988年   2篇
  1987年   2篇
  1985年   2篇
  1984年   2篇
  1980年   2篇
  1979年   2篇
  1978年   3篇
  1976年   2篇
  1960年   1篇
  1959年   1篇
  1958年   1篇
  1957年   1篇
  1956年   2篇
  1955年   1篇
  1954年   4篇
  1953年   2篇
  1952年   3篇
  1951年   6篇
  1950年   2篇
  1932年   1篇
  1920年   1篇
  1919年   1篇
排序方式: 共有263条查询结果,搜索用时 15 毫秒
181.
Review Essay     
Studies in East European Thought -  相似文献   
182.
183.
184.
185.
186.
187.
As the literature indicates, no method is presently available which takes explicitly into account that the parameters of Lazarsfeld's latent class analysis are defined as probabilities and are therefore restricted to the interval [0, 1]. In the present paper an appropriate transform on the parameters is performed in order to satisfy this constraint, and the estimation of the transformed parameters according to the maximum likelihood principle is outlined. In the sequel, a numerical example is given for which the basis solution and the usual maximum likelihood method failed. The different results are compared and the advantages of the proposed method discussed.  相似文献   
188.
It has been well known for a number of years that abrupt withdrawal from alcohol following chronic use is associated with adverse consequences, ranging from mild tremors to withdrawal seizures. The overall purposes of treating alcohol withdrawal (AW) are to relieve patient discomfort, to prevent the development of more serious withdrawal symptoms, and to initiate long-term alcohol rehabilitation. Several areas of controversy exist in the clinical management of AW, including the optimal treatment setting, the need for pharmacologic management, and the most appropriate agent to prescribe when medication is deemed necessary. This article reviews the clinical features, general management, and treatment of AW.  相似文献   
189.
This paper deals with an approach to the integration of science (with technology and economics), ethics (with religion and mysticism), the arts (aesthetics) and Nature, in order to establish a world-view based on holistic, evolutionary ethics that could help with problem solving. The author suggests that this integration is possible with the aid of “Nature’s wisdom” which is mirrored in the macroscopic pattern of the ecosphere. The corresponding eco-principles represent the basis for unifying soft and hard sciences resulting in “deep sciences”. Deduction and induction will remain the methodology for deep sciences and will include conventional experiments and aesthetic and sentient experiences. Perception becomes the decisive factor with the senses as operators for the building of consciousness through the subconscious. In this paper, an attempt at integrating the concepts of the “true”, the “right” and the “beautiful” with the aid of Nature’s wisdom is explained in more detail along with consequences. The author is a bioprocess engineer with a research interest in environmental issues.  相似文献   
190.
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