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   1507篇
  免费   230篇
  国内免费   162篇
  2024年   4篇
  2023年   23篇
  2022年   24篇
  2021年   29篇
  2020年   61篇
  2019年   85篇
  2018年   85篇
  2017年   88篇
  2016年   79篇
  2015年   51篇
  2014年   85篇
  2013年   189篇
  2012年   77篇
  2011年   63篇
  2010年   49篇
  2009年   90篇
  2008年   90篇
  2007年   114篇
  2006年   62篇
  2005年   85篇
  2004年   86篇
  2003年   73篇
  2002年   62篇
  2001年   29篇
  2000年   35篇
  1999年   23篇
  1998年   15篇
  1997年   19篇
  1996年   13篇
  1995年   9篇
  1994年   7篇
  1993年   9篇
  1992年   6篇
  1991年   6篇
  1990年   2篇
  1989年   4篇
  1988年   7篇
  1987年   3篇
  1986年   3篇
  1985年   4篇
  1983年   4篇
  1982年   5篇
  1981年   4篇
  1980年   4篇
  1979年   6篇
  1978年   9篇
  1977年   2篇
  1976年   6篇
  1975年   7篇
  1973年   2篇
排序方式: 共有1899条查询结果,搜索用时 0 毫秒
101.
I applaud Ruffman for cautioning us against interpreting early sensitivity to others’ beliefs as evidence for an innate theory of mind and for making room for learning. In turn, however, I caution against his claim that all infants need is to understand that people act depending on what they perceive. Instead, infants may keep experiential records (Perner & Roessler, 2010) for other people or records of what they have registered (Apperly & Butterfill, 2009), which makes it less obvious that all required knowledge can be acquired by statistical learning. As a general criticism I remonstrate with current theory of mind research on its lack of concern that we understand people as acting for reasons which goes beyond detecting lawful regularities in behaviour.  相似文献   
102.
Team effectiveness and group performance are often defined by standards set by domain experts. Professional musicians consistently report that sound output is the most important standard for evaluating the quality of group performance in the domain of music. However, across six studies, visual information dominated rapid judgments of group performance. Participants (1062 experts and novices) were able to select the actual winners of live ensemble competitions and distinguish top-ranked orchestras from non-ranked orchestras based on 6-s silent video recordings yet were unable to do so from sound recordings or recordings with both video and sound. These findings suggest that judgments of group performance in the domain of music are driven at least in part by visual cues about group dynamics and leadership.  相似文献   
103.
104.
乳腺癌仍然是严重威胁女性健康的重大疾病。每年新发乳腺癌患者中约有6%为Ⅳ期乳腺癌,而这类患者5年生存率小于20%,局部处理(外科、放疗)可以根除局部病灶及微小转移灶,以延缓或者缓解症状,但是否可以带来生存获益尚无定论。本文对Ⅳ期乳腺癌原发灶的局部处理等方面的若干问题作一综述。  相似文献   
105.
探索手术治疗单一局部复发或唯一远处转移病灶乳腺癌的临床价值。收集2006年6月至2013年6月湖南省人民医院乳甲外科收治的64例局部复发或术后远处转移乳腺癌患者,其中28例为单发病灶病例。根据是否采取了包含手术的综合治疗,将其分为手术组与非手术组。回顾性分析两组的临床资料和随访数据,分析手术治疗局部复发或远处转移乳腺癌有无临床意义。结果28例都采取了含化疗的综合治疗,8例局部单发病灶与9例远处单一脏器转移病例进行了手术治疗。手术组的局部缓解率与控制率明显优于非手术组,均为100%。两组无进展生存时间(PFS)和总生存时间(()S)比较,手术组明显长于非手术组;但在单一远处脏器转移手术组中0S没有优势。2年生存率方面手术组与非手术组比较有统计学意义。对于术后单一局部复发病灶或唯一远处脏器转移的乳腺癌患者,采取含手术的综合治疗方案能带来明显的PFS优势,若有手术机会和条件成熟,手术仍是不应放弃的有效治疗方法。  相似文献   
106.
本研究通过两个实验探讨了262名3~5岁幼儿基于面孔的信任判断能力及其年龄间差异。结果发现:(1)实验1中,当陌生面孔单张呈现时,3岁幼儿还不能正确地区分被成人评价为可信和不可信的面孔,而4、5岁幼儿已经能够基于面孔特征做出与成人基本一致的信任判断;(2)实验2中,当配对呈现可信vs.不可信两张面孔时,3~5岁幼儿都能够在日常交往情境中依据陌生交往者的面孔特征做出与成人基本一致的信任判断,并且随着年龄的增长,信任判断准确率逐步提高。这些结果表明幼儿从3岁开始已经能够基于面孔做出信任判断,随着年龄的增长,信任判断能力逐步发展。  相似文献   
107.
Olivia Marchal 《Médecine & Droit》2018,2018(152):129-139
How to limit the risks in the use of medical devices increasingly present in medicine an increasingly technologically complex? Simple and regulatory rules apply such as the CE marking. This becomes more complex when it is necessary to prove the compatibility of an assembly of several medical devices. The Vigilance on Medical Devices allows to alert after placing on the market when there has been an incident or a risk of incident on a failing medical device. Users training is one of the key point to control risks. Risk Training in specific fields such as the Electricity hazards associated with the use of electrical scalpels, laser-related hazards, electromagnetic fields, … is not sufficiently developed and renewed for good risk control. Finally, maintenance is a regulatory obligation and must be arranged for proper use of medical devices.  相似文献   
108.
Previous research on superstitious belief, a subset of paranormal belief (Irwin, 1993 ), has suggested that people tend to invoke luck‐related superstitions in stressful situations as an attempt to gain an illusion of control over outcomes. Based on this, the current study examined whether luck‐related superstition, in the form of a “lucky” pen, could influence the psychological response to a psychosocial stressor. Participants (N = 114), aged between 17 and 59 years (= 22.98, SD = 4.57) from James Cook University Singapore, were randomly assigned to one of four conditions: (a) no‐stress with no lucky pen; (b) no‐stress with a lucky pen; (c) stress with no lucky pen or; (d) stress with a lucky pen. The results revealed that participants provided with a lucky pen experienced lower state anxiety when exposed to the stressor. Further, participants provided with a lucky pen perceived their performance to be better than those without it. However, superstitious belief did not significantly change following exposure to stress. Taken together, the present findings add some support to the suggestion that belief in transferable luck may facilitate coping with a stressor. However, further research is needed to fully understand the mechanisms behind the potential benefits of superstitious belief.  相似文献   
109.
为探讨地方政府政策执行偏差严重程度对公众地方政府责任判断的影响机制。采用问卷法对728名社会公众进行调查,结果显示:(1)公众地方政府有意性判断和公众地方政府可控归因中介了政策执行偏差严重程度与公众地方政府责任判断之间的关系。(2)政策执行偏差严重程度还通过公众地方政府有意性判断→公众地方政府可控归因的中介链作用于公众地方政府道德责任判断。并对研究的实践启示进行了讨论。  相似文献   
110.
In many decision contexts, people evaluate others based on intertemporal performance records and commonly face a choice between two distinct profiles: performance that is consistently high versus performance that improves over time to that high level. We proposed that these two profiles could be appealing for different reasons, and thus evaluators’ preferences will differ across decision contexts. In three studies, participants were presented with candidates (e.g., students, employees) displaying the two profiles, and evaluated each candidate in terms of performance, future expectations, and deservingness. The consistent candidate was rated higher on performance, but lower on future expectations, than the improved candidate. Consequently, in achievement-based decisions (e.g., selecting a student for a scholarship), the consistent candidate was viewed as most deserving, whereas in potential-based decisions (e.g., selecting an employee for promotion), the improved candidate was preferred. These effects were mediated by the relative weight that evaluators placed on performance and future expectations.  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