全文获取类型
收费全文 | 7238篇 |
免费 | 1710篇 |
国内免费 | 403篇 |
专业分类
9351篇 |
出版年
2023年 | 50篇 |
2022年 | 68篇 |
2021年 | 192篇 |
2020年 | 218篇 |
2019年 | 490篇 |
2018年 | 409篇 |
2017年 | 528篇 |
2016年 | 534篇 |
2015年 | 444篇 |
2014年 | 426篇 |
2013年 | 901篇 |
2012年 | 488篇 |
2011年 | 449篇 |
2010年 | 455篇 |
2009年 | 426篇 |
2008年 | 454篇 |
2007年 | 402篇 |
2006年 | 385篇 |
2005年 | 351篇 |
2004年 | 241篇 |
2003年 | 232篇 |
2002年 | 203篇 |
2001年 | 138篇 |
2000年 | 129篇 |
1999年 | 95篇 |
1998年 | 53篇 |
1997年 | 39篇 |
1996年 | 54篇 |
1995年 | 32篇 |
1994年 | 25篇 |
1993年 | 29篇 |
1992年 | 39篇 |
1991年 | 26篇 |
1990年 | 23篇 |
1989年 | 15篇 |
1988年 | 25篇 |
1987年 | 20篇 |
1986年 | 18篇 |
1985年 | 17篇 |
1984年 | 30篇 |
1983年 | 12篇 |
1982年 | 18篇 |
1981年 | 15篇 |
1980年 | 15篇 |
1978年 | 9篇 |
1973年 | 9篇 |
1972年 | 14篇 |
1971年 | 9篇 |
1969年 | 10篇 |
1968年 | 11篇 |
排序方式: 共有9351条查询结果,搜索用时 0 毫秒
211.
212.
伪医学国际化之成因 总被引:1,自引:0,他引:1
刘俊荣 《医学与哲学(人文社会医学版)》1999,20(9):6-7
伪医学的表现形式多种多样,且存在于世界的各个角落,功利思想的驱动、职业道德的沦丧,使传播者见利忘义;医学水平的局限、本能的求生意识诱发了人们求助伪医学的侥幸心理;医巫同源的影响、伪医学的心理调控作用模糊了人们对其本质的认识;贫困者对现代医疗费用的畏惧、富有者对健康长寿的奢望为伪医学提供了广阔的市场;文化差异的存在,使伪医学拥有了生长的土壤 相似文献
213.
现代解剖学的涵义已大大延伸了,许多边缘学科,其地位仍然是重要的。无论从微观上或宏观看,前景是非常广阔的。活体水平上的研究应是人体解剖学发展的基本方向,要用辩证的思维方法作指导。 相似文献
214.
Sophie Gilliat‐Ray 《Journal of Contemporary Religion》1999,14(2):233-244
As the religious diversity of English towns and cities has grown over the past thirty years due to the establishment in some places of sizeable communities of Hindus, Muslims and Sikhs, as well as other faiths, there have been important changes to local public religion. Traditional civic ceremonies, such as Remembrance Sunday, as well as new forms of civic celebration and commemoration, are now increasingly taking account of the diversity of faiths represented in Britain. This paper examines the consequences of religious diversity for English civic religion by looking at some of the traditions of civic ceremonies in England and at the way in which they have been transformed by the changing religious landscape of towns and cities. The paper also explores some of the dilemmas and questions that have emerged both for the Church of England as well as for the other faith communities when it comes to the design and delivery of civic ceremonies. 相似文献
215.
216.
Effect of collective self-esteem on ingroup evaluations. 总被引:1,自引:0,他引:1
217.
218.
To compare transparent motion and kinetic boundaries with unidirectional motion, in many studies the relative motion is generated by superimposing or adjoining unidirectional motions oriented in opposite directions. The presumption, tacitly underlying this comparison, is that the two oppositely directed velocities are independent of one another as far as their speed is concerned, i.e. the speed of the relative motion is presumed to be equivalent to the speed of the unidirectional components. Here we report that the relative motion between dots moving in opposite directions augments perceived speed. A constant-stimuli procedure was used to pair transparent-motion or kinetic-boundary displays with unidirectional motion, and human observers were asked to match the speed of the relative and unidirectional motions. The results show that transparency and kinetic boundaries increase the perceived visual speed by about 50%, compared with the speed of the individual components. 相似文献
219.
Jean‐Pierre Marquis 《国际科学哲学研究》1999,13(3):245-259
In this paper, I introduce and examine the notion of “mathematical engineering” and its impact on mathematical change. Mathematical engineering is an important part of contemporary mathematics and it roughly consists of the “construction” and development of various machines, probes and instruments used in numerous mathematical fields. As an example of such constructions, I briefly present the basic steps and properties of homology theory. I then try to show that this aspect of contemporary mathematics has important consequences on our conception of mathematical knowledge, in particular mathematical growth. 相似文献
220.
Across their life spans humans actualize a rich potential for cognitive and behavioral plasticity, a set of developmental changes that require regulation of organism-context relations on the part of both the individual and society. An individual’s action on the context must be started in infancy and maintained in subsequent periods of life for adaptive functioning to occur across ontogeny. The process of the individual acting as an agent of his or her own development is continuous, although the particular ways in which such control is manifested will change in developmentally appropriate ways. As demonstrated by the papers in this special issue, the significance of infancy for the rest of the life-span rests on an integration of this continuity and discontinuity within the person-context developmental system. 相似文献