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   1041篇
  免费   111篇
  国内免费   370篇
  2024年   4篇
  2023年   13篇
  2022年   35篇
  2021年   37篇
  2020年   55篇
  2019年   34篇
  2018年   50篇
  2017年   58篇
  2016年   65篇
  2015年   32篇
  2014年   47篇
  2013年   105篇
  2012年   73篇
  2011年   87篇
  2010年   65篇
  2009年   55篇
  2008年   79篇
  2007年   84篇
  2006年   104篇
  2005年   66篇
  2004年   54篇
  2003年   44篇
  2002年   36篇
  2001年   28篇
  2000年   20篇
  1999年   21篇
  1998年   14篇
  1997年   16篇
  1996年   10篇
  1995年   7篇
  1994年   10篇
  1993年   7篇
  1992年   12篇
  1991年   11篇
  1990年   8篇
  1989年   7篇
  1988年   2篇
  1987年   3篇
  1986年   6篇
  1985年   6篇
  1984年   8篇
  1983年   6篇
  1982年   9篇
  1981年   10篇
  1980年   8篇
  1977年   2篇
  1973年   2篇
  1969年   1篇
  1968年   1篇
  1966年   1篇
排序方式: 共有1522条查询结果,搜索用时 31 毫秒
881.
This paper reports a new experimental manipulation that increased false memories 1 month after the manipulation. Mirroring the standard three‐stage misinformation paradigm (original event, misinformation, and test), subjects in the experimental group were first given a colour‐slide presentation of two stories (events), then given an accurate account (instead of misinformation) of the events in narrations, and finally tested for their memory of the original events. One month later, they underwent the standard misinformation paradigm with two new events. The comparison group was given the standard misinformation tasks at both time points. Results showed that the experimental group produced more false memories in the subsequent misinformation paradigm than did the comparison group. We focus on trust and credibility as possible mechanisms underlying this effect. Copyright © 2009 John Wiley & Sons, Ltd.  相似文献   
882.
为了比较瑞芬太尼-丙泊酚静脉麻醉与利多卡因硬膜外神经阻滞在门诊隆胸手术中的应用效果,选取ASA I级行门诊隆胸手术患者80例,随机等分为瑞芬太尼-丙泊酚静脉麻醉组(A组)和利多卡因硬膜外神经阻滞组(B组).观察两组患者围手术期的麻醉效果和术后2h内不良反应发生情况.结果显示,A组麻醉效果显著优于B组,且术后2h内发生的不良反应明显少于B组.  相似文献   
883.
884.
The current study investigated the relationships between current attachment to mother and attachment to romantic partners, and the role of current partner support and culture as moderators of that relationship. University students who were currently in a romantic relationship were recruited from Hong Kong and USA, and completed measures on attachment styles and partner support. Results showed that maternal attachment anxiety was correlated with romantic attachment anxiety; maternal attachment avoidance was correlated with romantic attachment avoidance, but this linkage varied by level of current partner support. Romantic attachment avoidance was also associated with current partner support, but this linkage was stronger for HK Chinese than for Americans. These results are discussed in terms of how interpersonal and personality factors promoted by culture can affect the developmental course of romantic relationships.  相似文献   
885.
在强调皇天的至高无上性、天师之言的绝对命令性以及度世登仙的彼岸性等方面,《太平经》显示出走向绝对超越一维的理论可能。然而,天人一体互感的总体思路,又成为其最终走向绝对超越之维的内在拘限。事实上,宗教性的超越冲动与天人一体互感的传统思维框架之间形成的张力,乃是导致中国传统宗教在现世中求超越这一宿命的根本原因。  相似文献   
886.
为探讨慢性强迫游泳应激对动物情绪和脑组织细胞外信号调节激酶(extracellular signal-regulated kinase, ERK1/2)的影响,动物情绪和脑组织ERK1/2之间的关系,将动物随机分为游泳应激组、装置对照组和控制组。分别对三组大鼠给予相应的干预14天, 然后进行行为观察,免疫印记法测定海马和前脑皮质ERK1/2水平。结果表明强迫游泳应激组和装置对照组都出现明显的情绪障碍。两组大鼠ERK1/2在前脑皮质的表达水平均显著升高,海马无显著变化。前脑皮质ERK2与糖精水摄入量呈显著负相关。提示慢性强迫游泳应激能够诱导大鼠的情绪障碍,提高ERK1/2在前脑皮质的表达水平,ERK1/2与情绪关系密切,可能是脑组织应激性情绪调节的重要生理机制。强迫游泳应激能够导致动物明显的抑郁反应,是比较理想的抑郁动物模型  相似文献   
887.
将儿童几何图形预期表象分为两种水平,即再认水平的预期表象和生成水平的预期表象。采用“平移”、“对称”、“重叠”三种平面几何图形的预期表象作业和“展开”、“旋转”、“截面”三种立体几何图形的预期表象作业考察了3至12岁儿童几何图形预期表象的发生和发展。结果表明:儿童再认预期表象的发生早于生成预期表象的发生;儿童预期表象的发生和发展明显受几何图形类型和作业类型的制约  相似文献   
888.
Unlike innovation based on a strong professional culture involving close collaboration between professionals in academia and/or corporations, the current Free/Libre Open Source Software (FLOSS) development entails a global knowledge network, which consists of 1) a heterogeneous community of individuals and organizations who do not necessarily have professional backgrounds in computer science but have developed the competency to understand programming and working in a public domain; 2) corporations. This paper describes the operation of the hybrid form of developing and implementing software, and also identifies several key factors shaping the collaboration between FLOSS firms and the community. She received her Ph.D. in sociology from the University of York (UK) in 2004. Her Ph.D. research investigated the heterogeneity and contingency in the Free/Libre Open Source Software (FLOSS) social worlds, which is based on a constellation of hacking practices, from the sociological perspective. Her principal research interests center on FLOSS studies, Science and Technology Studies (STS), virtual communities and knowledge management.  相似文献   
889.
对136例无救治希望的晚期癌症患者及家属进行问答式调查,旨在分析安乐死在晚期癌症患者中实施的可行性.结果,只有2.2%的患者欲选择安乐死,家属均不选择安乐死;95.6%的患者和97.8%的家属选择临终关怀或姑息治疗.因此,安乐死难以为人们所接受.  相似文献   
890.
Impact of telepresence levels on internet advertising effects.   总被引:1,自引:0,他引:1  
This study examined the dimensions of interactivity and vividness to propose three telepresence levels: content presence, social presence, and personal presence. Then, an experiment investigated the impact of different telepresence levels on Internet advertising. The effects of interactions between vividness of visual imagery (VVI) and product types in relation to telepresence levels and advertising effects were also analyzed. The study employed a factorial design: 4 (levels of telepresence) x 2 (product types) x 2 (VVI). Levels of telepresence and product types were both manipulated between subjects. VVI was measured within subjects. Experimental findings showed that high levels of telepresence of an Internet advertisement increased subject recall and recognition. The low VVI respondent group would have greater recognition than traditional advertisements when respondents were exposed above the level 2 (social presence) advertisement and the effect of recognition increased from level 1 (content presence) to level 3 (personal presence). Recognition increased from level 1 (content presence) to level 2 (social presence) for both search and experience product groups; however, only recognition of the experience product group increased in level 3 (personal presence).  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