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   19098篇
  免费   1680篇
  国内免费   366篇
  21144篇
  2024年   174篇
  2023年   291篇
  2022年   272篇
  2021年   322篇
  2020年   619篇
  2019年   655篇
  2018年   615篇
  2017年   732篇
  2016年   714篇
  2015年   468篇
  2014年   636篇
  2013年   1931篇
  2012年   493篇
  2011年   500篇
  2010年   436篇
  2009年   623篇
  2008年   812篇
  2007年   890篇
  2006年   840篇
  2005年   725篇
  2004年   619篇
  2003年   514篇
  2002年   464篇
  2001年   285篇
  2000年   275篇
  1999年   228篇
  1998年   182篇
  1997年   155篇
  1996年   127篇
  1995年   119篇
  1994年   103篇
  1993年   84篇
  1992年   63篇
  1991年   49篇
  1990年   50篇
  1989年   30篇
  1988年   41篇
  1985年   390篇
  1984年   443篇
  1983年   354篇
  1982年   455篇
  1981年   447篇
  1980年   450篇
  1979年   396篇
  1978年   460篇
  1977年   365篇
  1976年   374篇
  1975年   286篇
  1974年   282篇
  1973年   244篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
992.
993.
994.
为适应全球卫生事业的迅猛发展,面对医学教育落后于医学发展的现状,转化医学教育迫在眉睫。在第三代“以系统为基础”的教育改革中,培养医学生的哲学思维无疑是其重要环节之一。思维方式必须在医学生步入临床时就要开始正确培养,一旦开始阶段就养成不正确的思维方式、不但会导致医疗过程中的失误,而且再想改变将会有很大难度。本文通过对医学哲学重要性的探讨,剖析医学生哲学思维的不足,阐述了医学生,临床实习过程中应掌握的几种哲学思维方式。旨在提高医学生的哲学理念,促进以岗位胜任能力为导向的医学教育转型发展。  相似文献   
995.
期望反应模式是认知诊断分类的类中心,确定了诊断范围中属性及其层级关系后,类中心的数目由测验Q矩阵决定.类中心应该是完备的,即理论上有多少个知识状态就应该有多少个类中心,这涉及评分方式、Q矩阵设计、Q矩阵评价与修改、认知诊断测验如何实施等问题的讨论.重点给出多级评分认知诊断测验不同属性层级对应的完备Q矩阵设计的例子和罗列了Wang等人(2013)的Q矩阵修改的方法.  相似文献   
996.
采用基于最大信息量法的多维项目反应理论模型估计计算机模拟心理咨询病例系统(CCSPC)的合成分数及四个模块分数,并收集效标效度证据、成长变化效度证据和内容效度证据,结果表明:五个指标与心理咨询师考试三级技能成绩的相关均达到显著,且高于其与三级理论成绩的相关;所有指标得分均随着心理学学历升高而升高;多数指标分数随心理学本科年级提高而提高;获得心理咨询师资格认证的被试在CCSPC上有更高的得分.  相似文献   
997.
Developmental stuttering is known to be associated with aberrant brain activity, but there is no evidence that this knowledge has benefited stuttering treatment. This study investigated whether brain activity could predict progress during stuttering treatment for 21 dextral adults who stutter (AWS). They received one of two treatment programs that included periodic H215O PET scanning (during oral reading, monologue, and eyes-closed rest conditions). All participants successfully completed an initial treatment phase and then entered a phase designed to transfer treatment gains; 9/21 failed to complete this latter phase. The 12 pass and 9 fail participants were similar on speech and neural system variables before treatment, and similar in speech performance after the initial phase of their treatment. At the end of the initial treatment phase, however, decreased activation within a single region, L. putamen, in all 3 scanning conditions was highly predictive of successful treatment progress.  相似文献   
998.
Despite theoretical assertions derived from life history theory, research on the relationship between the general factor of personality and general intelligence has shown that there is little overlap between the two higher-order constructs. It is argued that the association between these general factors is largely attenuated by measurement error in assessing the general factor of personality. A substantial association between the general factors at multiple points in time was found when the general factor of personality was derived from rater Q-sorts. The results have important implications for the study of individual differences.  相似文献   
999.
This study examined the associations between four personality dimensions associated with the dark triad (callous–unemotional traits, narcissism, impulsivity, and Machiavellianism) and theory of mind (TOM) abilities among 146 middle school children. Results of hierarchical multiple regression analyses showed narcissism to be positively associated with TOM, callous–unemotional (CU) traits to be negatively associated with TOM, and impulsivity and Machiavellianism to be unrelated to TOM. No significant interactions were found between gender and any of the dimensions of personality. The putative mechanisms linking each personality dimension with understanding of mental states in others are discussed, along with directions for future research.  相似文献   
1000.
The present study examined the phenotypic, genetic, and environmental correlations between a general factor of personality (GFP) and four humor styles: affiliative, self-enhancing, aggressive, and self-defeating. Participants were 571 same-sex adult twin pairs. Individuals completed the Humor Styles Questionnaire (HSQ) and a short form of the NEO personality scale (from which the GFP was extracted). The GFP was found to be heritable with an estimated value of .31. At the phenotypic level, the GFP was found to correlate significantly with the HSQ scales; positively with affiliative and self-enhancing, and negatively with aggressive and self-defeating. Three of the four phenotypic correlations were found to be attributable to correlated genetic factors, suggesting that these dimensions of humor styles and the GFP may have a common genetic factor.  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