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91.
身体活动与心理活动动词加工的ERP比较 总被引:4,自引:0,他引:4
在19名右利手被试完成词汇判断任务的同时,通过119个头皮电极记录其事件相关电位(ERP),以此来探讨表示身体活动的动词与表示心理活动的动词之间的加工差异。研究结果表明,在200~300ms时窗,在左半球枕区附近,身体活动动词所诱发的ERP比心理活动动词所诱发的ERP在正走向上更小。在300~400ms(即类似的N400)时窗,动词类型效应出现在中线和左半球的更大的区域上,特别是中央区附近,身体活动动词所诱发的ERP比心理活动动词所诱发的ERP在负走向上更大。语言表征的神经生物学理论可以解释本研究的部分结果。 相似文献
92.
理论哲学与实践哲学涵括了哲学的全部领域。然而,一部西方哲学史实际上只是理论哲学即形而上学的历史,实践哲学则被隐于形而上学的阴影之下,为形而上学所遮蔽。其实,实践哲学作为一个重要的哲学领域,应当是贯穿于西方哲学史的、异于形而上学的一个十分重要而广阔的哲学领域。该 相似文献
93.
In the present study, we discuss reliability, consistency, and method specificity based on the CT-C(M?-?1) model, which provides clear definitions of trait and method factors and can facilitate parameter estimation. Properties of the reliability coefficient, the consistency coefficient, and the method-specificity coefficient of the summated score for a trait factor are addressed. The consistency coefficient and the method-specificity coefficient are both functions of the number of items, the average item consistency, and the average item method specificity. The usefulness of the findings is demonstrated in an alternative approach proposed for scale reduction. The approach, taking into account both traits and methods, helps identify the items leading to the maximum of convergent validity or method effects. The approach, illustrated with a simulated data set, is recommended for scale development based on multitrait-multimethod designs. 相似文献
94.
摘要:用同伴提名和班级戏剧对小学4年级至初中二年级787名儿童进行一年的追踪研究,采用交叉滞后设计,考察了社交淡漠与同伴接纳的相互预测关系。结果发现:(1)同伴接纳与社交淡漠呈显著负相关;(2)社交淡漠在一年时间内呈现出高度的稳定性。测试时间与性别、年级的交互作用显著,在一年时间里,小学男生社交淡漠水平有所减少、女生社交淡漠水平有所增加,而初中男生社交淡漠水平有所增加、女生社交淡漠水平有所减少;(3)二元交叉滞后回归分析结果表明,社交淡漠与同伴接纳的关系模式存在显著的性别差异。对于男生,前测的社交淡漠可以显著预测后测的同伴接纳,而前测的同伴接纳不能显著预测后测的社交淡漠。女生则呈现完全相反的模式。 相似文献
95.
96.
This study reports findings from comparative samples of sixth-grade Chinese and U.S. students' interpretations of the equal sign. Ninety-eight percent of the Chinese sample correctly answered 4 items indicating conceptions of equality and provided conceptually accurate explanations. In contrast, only 28% of the U.S. sample performed at this level. We examine how teacher preparation materials, students' textbooks and teachers' guidebooks treat equality in each country. U.S. teacher preparation textbooks rarely interpreted the equal sign as equivalence. On the contrary, Chinese textbooks typically introduced the equal sign in a context of relationships and interpreted the sign as “balance,” “sameness,” or “equivalence” and only then embedded the sign with operations on numbers. 相似文献
97.
This study examines presentations of the distributive property (DP) in two widely used U.S. elementary text series and one main Chinese text series along three dimensions: problem contexts, typical problem types within each problem context, and variability in using the DP. In general, the two U.S. texts were found to resemble each other but to differ considerably from the Chinese text series. Both U.S. texts are computation-dominated, presenting various strategies centering on “breaking apart a factor to perform multiplication.” These strategies limit the use of the DP mainly with whole numbers and in a regular direction. The underlying principle of these strategies is seldom made explicit. In contrast, the Chinese text approaches focus on the underlying principle and are well aligned with cognitive research suggestions. Multiple-step word problems with particular structures are used in a systematic and hierarchic manner across grades to help students learn and transfer the DP. The Chinese texts also tend to ask students to “compute in convenient ways” involving various numbers (e.g., whole numbers, decimals, fractions, and percents) and using the DP in both regular and opposite directions. The introduction of repeated variables is a timely application of the DP, which provides an entry to algebra (e.g., expressions and equations with repeated variables). The Chinese approaches (e.g., contextual interferences, spaced practice, and encoding variability) suggest alternative insights into developing U.S. students’ understanding of the DP and readying them for algebra. 相似文献
98.
An inverse “smaller is stronger” trend is predicted on the basis of molecular dynamics simulations of α-titanium (Ti) single-crystal nanopillars orientated for double prismatic slips when the nanopillars are less than 7?nm wide. This trend is attributed to a significant increase in the surface energy due to the nucleation and propagation of edge dislocations on the surface of the pillars. 相似文献
99.
A bibliometric approach was employed to analyze the research productivity and performance of creativity studies between 1965 and 2012. A dataset was constructed using all publications and citations retrieved from four key journals that publish creativity research: Journal of Creative Behavior (JCB), Gifted Child Quarterly (GCQ), Creativity Research Journal (CRJ), and Psychology of Aesthetics, Creativity, and the Arts (PACA). Major findings in this study include: (a) During the study period, the four journals have published 1,891 articles on creativity and they have been cited 11,709 times; (b) the impact factors of the four journals increased from lower than .50 in 2002 to over 1.0 in 2012; in 2012 PACA had the highest impact factor, followed by CRJ; (c) JCB published the most creativity papers and CRJ had the most citations; (d) about a third of the articles published in the four journals have never been cited. Implications for the field of creativity are discussed. 相似文献
100.
Xiaowei Ding Jun Yin Rende Shui Jifan Zhou Mowei Shen 《Psychonomic bulletin & review》2017,24(2):447-452
Walking direction is an important attribute of biological motion because it carries key information, such as the specific intention of the walker. Although it is known that spatial attention is guided by walking direction, it remains unclear whether this attentional shift is reflexive (i.e., constantly shifts to the walking direction) or not. A richer interpretation of this effect is that attention is guided to seek the information that is necessary to understand the motion. To investigate this issue, we examined how backward-walking biological motion orients attention because the intention of walking backward is usually to avoid something that walking forward would encounter. The results showed that attention was oriented to the walking-away direction of biological motion instead of the walking-toward direction (Experiment 1), and this effect was not due to the gaze direction of biological motion (Experiment 2). Our findings suggest that the attentional shift triggered by walking direction is not reflexive, thus providing support for the rich interpretation of these attentional effects. 相似文献