全文获取类型
收费全文 | 1077篇 |
免费 | 136篇 |
国内免费 | 351篇 |
专业分类
1564篇 |
出版年
2024年 | 1篇 |
2023年 | 26篇 |
2022年 | 63篇 |
2021年 | 33篇 |
2020年 | 70篇 |
2019年 | 48篇 |
2018年 | 53篇 |
2017年 | 52篇 |
2016年 | 50篇 |
2015年 | 40篇 |
2014年 | 55篇 |
2013年 | 94篇 |
2012年 | 63篇 |
2011年 | 95篇 |
2010年 | 68篇 |
2009年 | 72篇 |
2008年 | 77篇 |
2007年 | 123篇 |
2006年 | 100篇 |
2005年 | 84篇 |
2004年 | 37篇 |
2003年 | 28篇 |
2002年 | 18篇 |
2001年 | 19篇 |
2000年 | 21篇 |
1999年 | 24篇 |
1998年 | 13篇 |
1997年 | 12篇 |
1996年 | 3篇 |
1995年 | 8篇 |
1994年 | 13篇 |
1993年 | 13篇 |
1992年 | 10篇 |
1991年 | 10篇 |
1990年 | 6篇 |
1989年 | 10篇 |
1988年 | 8篇 |
1987年 | 4篇 |
1986年 | 4篇 |
1985年 | 9篇 |
1984年 | 4篇 |
1983年 | 3篇 |
1982年 | 4篇 |
1981年 | 6篇 |
1980年 | 3篇 |
1979年 | 6篇 |
1960年 | 1篇 |
排序方式: 共有1564条查询结果,搜索用时 31 毫秒
111.
准医务工作者能否准确把握自己的角色定位,实现角色目标,直接关系到将来能否更好的为患者服务,为社会服务。对准医务工作者角色定位目标及角色教育特征、教育体系构建进行研究探讨。 相似文献
112.
113.
114.
115.
Alteration of cingulate long-term plasticity and behavioral sensitization to inflammation by environmental enrichment 总被引:1,自引:0,他引:1 下载免费PDF全文
Shum FW Wu LJ Zhao MG Toyoda H Xu H Ren M Pinaud R Ko SW Lee YS Kaang BK Zhuo M 《Learning & memory (Cold Spring Harbor, N.Y.)》2007,14(4):304-312
Exposure to an enriched environment (EE) has been shown to induce cortical plasticity. Considerable amount of research is focused on the effects of EE in the hippocampus; however, effects of EE on other brain regions and the mechanisms involved are not well known. To investigate this, we induced cortical plasticity by placing mice in an EE for one month and measured the effects of EE in the anterior cingulate cortex (ACC). Here, we show that EE enhanced the expression of the plasticity gene, egr-1, in the ACC of EE animals accompanied by enhanced cingulate long-term potentiation (LTP) and decreased cingulate long-term depression (LTD). The increased NMDA receptor NR2B/NR2A subunits current ratio is associated with the plasticity seen in the ACC while total protein levels remain unchanged. Furthermore, behavioral experiments show that these mice exposed to EE demonstrate enhanced responses to acute and long-term inflammation. Our findings suggest that exposure to EE alters physiological properties within the ACC which results in enhanced responses to inflammation. 相似文献
116.
117.
为探讨乳腺癌患者反刍这一认知情绪调节方式在体象和创伤后应激障碍(PTSD)、创伤后成长(PTG)之间的中介作用,采用体象量表(BIS)、认知情绪调节问卷中文版(CERQ-C)、创伤后应激障碍量表(PSS)和创伤后成长问卷(PTGI)对150名乳腺癌术后患者进行研究。结果发现:(1)乳腺癌患者的体象可以正向预测PTSD和PTG;(2)乳腺癌患者的反刍在体象和PTSD的闯入性症状、回避性症状中起中介作用,在体象与PTG中的中介作用不显著。结果表明,体象既可以正向预测乳腺癌患者的PTSD和PTG,也可以通过反刍的中介作用影响PTSD。 相似文献
118.
20世纪初,太虚大师等人倡导的"人间佛教"运动警醒了明清至民国陷于腐败、堕落的中国佛教,开始了近一个世纪的"人间佛教"运动.进入新世纪,回头分析"人间佛教"的发展,可以从中吸取很多经验,同时也可发现当中存在的问题.笔者提出"都市佛教"理念,以期通过它为"人间佛教"的发展瓶颈找到解决之策. 相似文献
119.
126 leaders and 624 employees were sampled to test the relationship between sources of motivation and conflict management styles of leaders and how these variables influence effectiveness of leadership. Five sources of motivation measured by the Motivation Sources Inventory were tested-intrinsic process, instrumental, self-concept external, self-concept internal, and goal internalization. These sources of work motivation were associated with Rahim's modes of interpersonal conflict management-dominating, avoiding, obliging, complying, and integrating-and to perceived leadership effectiveness. A structural equation model tested leaders' conflict management styles and leadership effectiveness based upon different sources of work motivation. The model explained variance for obliging (65%), dominating (79%), avoiding (76%), and compromising (68%), but explained little variance for integrating (7%). The model explained only 28% of the variance in leader effectiveness. 相似文献
120.
Understanding the object benefit in visual short-term memory: the roles of feature proximity and connectedness 总被引:2,自引:0,他引:2
Xu Y 《Perception & psychophysics》2006,68(5):815-828
Past research has identified visual objects as the units of information processing in visual short-term memory (VSTM) and has shown that two features from the same object can be remembered in VSTM as well (or almost as well) as one feature of that object and are much better remembered than the same two features from two spatially separated objects. It is not clear, however, what drives this object benefit in VSTM. Is it the shared spatial location (proximity), the connectedness among features of an object, or both? In six change detection experiments, both location/proximity and connectedness were found to be crucial in determining the magnitude of the object benefit in VSTM. Together, these results indicate that location/proximity and connectedness are essential elements in defining a coherent visual object representation in VSTM. 相似文献