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   468篇
  免费   52篇
  国内免费   203篇
  723篇
  2023年   17篇
  2022年   24篇
  2021年   21篇
  2020年   40篇
  2019年   22篇
  2018年   22篇
  2017年   14篇
  2016年   22篇
  2015年   16篇
  2014年   38篇
  2013年   41篇
  2012年   29篇
  2011年   48篇
  2010年   47篇
  2009年   38篇
  2008年   43篇
  2007年   41篇
  2006年   50篇
  2005年   28篇
  2004年   29篇
  2003年   15篇
  2002年   8篇
  2001年   7篇
  2000年   10篇
  1999年   5篇
  1998年   1篇
  1997年   1篇
  1996年   4篇
  1995年   2篇
  1994年   3篇
  1993年   3篇
  1991年   2篇
  1990年   4篇
  1989年   3篇
  1988年   2篇
  1987年   1篇
  1986年   2篇
  1985年   5篇
  1984年   4篇
  1983年   1篇
  1982年   4篇
  1981年   1篇
  1980年   4篇
  1979年   1篇
排序方式: 共有723条查询结果,搜索用时 0 毫秒
71.
Applied Research in Quality of Life - There is increased social concern regarding children’s weight in China, but there is a relative lack of research concerning its social determinants....  相似文献   
72.
客体运动方向的视觉工作记忆容量   总被引:2,自引:0,他引:2  
记忆动态场景中多客体的特征和时空信息是人类重要的认知活动。目前有关视觉工作记忆的研究虽然广泛探讨了对视觉信息的存储容量及机制,然而所采用的刺激材料均呈现于静态场景中,且不包含运动信息。而有关多客体追踪的研究只关注动态场景中多客体信息的实时更新,而不涉及一段时间内对客体信息的保持。本研究结合视觉工作记忆领域的变化觉察范式和多客体追踪范式,以独立运动的客体为刺激材料,探讨多个客体的运动方向信息在工作记忆中的存储容量问题。结果表明,在工作记忆中能够存储大约3个客体的运动方向信息。  相似文献   
73.
We discuss measuring and detecting influential observations and outliers in the context of exponential family random graph (ERG) models for social networks. We focus on the level of the nodes of the network and consider those nodes whose removal would result in changes to the model as extreme or “central” with respect to the structural features that “matter”. We construe removal in terms of two case-deletion strategies: the tie-variables of an actor are assumed to be unobserved, or the node is removed resulting in the induced subgraph. We define the difference in inferred model resulting from case deletion from the perspective of information theory and difference in estimates, in both the natural and mean-value parameterisation, representing varying degrees of approximation. We arrive at several measures of influence and propose the use of two that do not require refitting of the model and lend themselves to routine application in the ERGM fitting procedure. MCMC p values are obtained for testing how extreme each node is with respect to the network structure. The influence measures are applied to two well-known data sets to illustrate the information they provide. From a network perspective, the proposed statistics offer an indication of which actors are most distinctive in the network structure, in terms of not abiding by the structural norms present across other actors.  相似文献   
74.
This study investigated 5-year-old Mandarin-speaking children’s comprehension of wh-questions, universal statements and free choice inferences. Previous research has found that Mandarin-speaking children assign a universal interpretation to sentences with a wh-word (e.g., shei ‘who’) followed by the adverbial quantifier dou ‘all’ (Zhou in Appl Psycholinguist 36:411–435, 2013). Children also compute free choice inferences in sentences that contain a modal verb in addition to a wh-word and dou (Zhou, in: Nakayama, Su, Huang (eds.) Studies in Chinese and Japanese language acquisition: in honour of Stephen Crain. John Benjamins Publishing Company, Amsterdam, pp 223–235, 2017). The present study used a Question-Statement Task to assess children’s interpretation of sentences containing shei + dou, both with and without the modal verb beiyunxu ‘was allowed to’, as well as the contrast between sentences with shei + dou, which are statements for adults, versus ones with dou + shei, which are wh-questions for adults. The 5-year-old Mandarin-speaking child participants exhibited adult-like linguistic knowledge of the semantics and pragmatics of wh-words, the adverbial quantifier dou, and the deontic modal verb beiyunxu.  相似文献   
75.
The present study used a Truth Value Judgment Task to investigate whether changes in sentence structure lead to corresponding changes in the assignment of scope relations by Mandarin-speaking children and adults. In one condition, participants were presented with ordinary negative sentences containing disjunction; this condition was designed to verify the existing claim that disjunction is a positive polarity item for adult speakers of Mandarin, but not for child speakers. In a second condition, participants were presented with negative sentences where the disjunction phrase was preposed from object position; this condition was designed to examine the extent to which changes in sentence structure can result in changes in scope assignments to negated disjunctions. The results indicate that the preposed disjunction phrase undergoes reconstruction for children, whereas reconstruction is blocked for adults. This finding also suggests that Mandarin-speaking children and adults exhibit different scope preferences for negated disjunctions, regardless of where the disjunction phrase appears in the surface syntax.  相似文献   
76.
The present studies sought to investigate the mapping relations between language and cognition by focusing on how Mandarin-speaking children acquire the mapping between their conceptual knowledge of possession and their linguistic expressions of possession. Two experiments were conducted. Experiment 1 used a comprehension task to explore whether young children are able to map their knowledge of possessive constructions onto their interpretation of possessive relations. Experiment 2 employed a production task to examine whether they are able to map their knowledge of possessive relations onto their linguistic expressions of possession. The findings were that 4-year-olds exhibited correct comprehension and production of possessive DE constructions, indicating that by age 4, Mandarin-speaking children have already established the mapping between their conceptual knowledge of possession and their linguistic expressions of possession. By contrast, 3-year-olds exhibited response patterns that suggest a developmental stage where they use noun–noun compounds to represent possessive relations before they map possessive relations onto possessive constructions.  相似文献   
77.
We propose and meta-analytically test a theoretical model of individual and job-based predictors of change-oriented behaviors. Meta-analytic tests (106 effect sizes, N = 28,402) demonstrate that employee's proactive personality is a stronger predictor of change-oriented behavior than the five-factor model (FFM) personality traits of openness and extraversion. Also, enriched job characteristics (autonomy, complexity, and task significance) are more important in predicting change-oriented behavior, than un-enriched job characteristics (routinization and formalization). Finally, we establish work engagement as a mediator that provides an explanation for how and why proactive personality and enriched job characteristics predict change-oriented behavior. We provide both theoretical and empirical integration of the literature with practical implications for managing change-oriented behaviors, which are increasingly recognized as important to both organizational effectiveness and employee career management.  相似文献   
78.
高娟  王鹏  王晓田  孙倩  刘永芳 《心理学报》2020,52(5):633-644
以福利权衡率(WTR)为利他程度的指标,通过3个实验逐步深入地考察了得失情境下他人参照点及心理距离对自我-他人利益权衡的影响。实验1的结果表明,得失情境并未改变被试的WTR。实验2引入他人底线、现状和目标三个参照点变量,发现被试获益情境下的WTR高于损失情境,且WTR从高到低依次为他人临近底线、目标和现状;他人临近底线时,被试在获益情境下的WTR高于损失情境,而他人临近现状和目标时,个体在得失情境下的WTR无显著差异。实验3进一步引入心理距离变量,发现心理距离较近他人的WTR高于较远他人,且与得失情境和参照点发生了复杂的交互效应,得失情境的主效应消失了,但总体上并未改变实验2发现的参照点效应。这些结果对于更深入地理解得失不对称效应、三参照点理论及社会折扣和自我-他人决策差异研究的相关发现具有一定的启示意义。  相似文献   
79.

1805年以降,一大批西医概念“旅行”至我国,其中不乏全新概念,如cancer概念。中医自古便有“癰”“疽”“癰疽”等概念,它们以译词的形式参与到西医“癌症”知识最初在我国的传播,致使20世纪初,cancer概念同carbuncle概念的混淆。国人对“癌症”概念的容受随“癌”一名之确立发生于20世纪30年代前后,对其认知也随相关知识系统性传入、孙中山先生因癌病逝消息的蔓延及“癌”字隐喻用法的形成而愈发清晰。“癌”字最终的采纳则同时受日语新词大量导入及制度化因素的影响。通过考察西医“癌症”概念在我国的翻译及流变,得以管窥西医入华史一角。

  相似文献   
80.

在上海地域范围内,冬令膏方的认知度、参与度、美誉度都很高;上海冬令膏方兼具传统医药和民俗两方面特点,民俗是底色,医俗是源头和核心,而药俗则最直观、可视程度最高;三“俗”的汇流与交融,造就了灿烂多姿的上海冬令膏方文化。上海冬令膏方的技艺与文化以群体传承为主,家庭(或家族)传承、社会传承为辅的特征十分突出;具有周期性特点,且集中在冬季的中医诊疗和中药炮制煎煮场所,带有明显的仪式和节日庆典风格,有多种文化符号表达。上海的中医药专家与当地百姓共同塑造了冬令膏方的习俗。

  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