全文获取类型
收费全文 | 7843篇 |
免费 | 682篇 |
国内免费 | 328篇 |
出版年
2024年 | 23篇 |
2023年 | 144篇 |
2022年 | 98篇 |
2021年 | 163篇 |
2020年 | 330篇 |
2019年 | 375篇 |
2018年 | 326篇 |
2017年 | 365篇 |
2016年 | 326篇 |
2015年 | 243篇 |
2014年 | 285篇 |
2013年 | 975篇 |
2012年 | 166篇 |
2011年 | 278篇 |
2010年 | 238篇 |
2009年 | 331篇 |
2008年 | 387篇 |
2007年 | 409篇 |
2006年 | 402篇 |
2005年 | 343篇 |
2004年 | 322篇 |
2003年 | 231篇 |
2002年 | 201篇 |
2001年 | 137篇 |
2000年 | 113篇 |
1999年 | 125篇 |
1998年 | 108篇 |
1997年 | 79篇 |
1996年 | 62篇 |
1995年 | 70篇 |
1994年 | 45篇 |
1993年 | 46篇 |
1992年 | 39篇 |
1990年 | 20篇 |
1989年 | 29篇 |
1988年 | 19篇 |
1987年 | 19篇 |
1985年 | 131篇 |
1984年 | 129篇 |
1983年 | 106篇 |
1982年 | 91篇 |
1981年 | 71篇 |
1980年 | 78篇 |
1979年 | 69篇 |
1978年 | 97篇 |
1977年 | 58篇 |
1976年 | 43篇 |
1975年 | 31篇 |
1974年 | 24篇 |
1973年 | 28篇 |
排序方式: 共有8853条查询结果,搜索用时 15 毫秒
1.
自南宋时起,《易数钩隐图》一书的作者就有二字与二籍贯的争议。本文就有关问题进行了考辨。得出北宋有二刘牧、前刘牧著《易数钩隐图》、黄黎献为之续补等结论。最后指出,彭城刘牧的道学思想应当在宋明理学中占有一席之地。 相似文献
2.
Tinyiko Maluleke 《The Ecumenical review》2020,72(1):19-36
This article argues that in Africa, the nature and advent of racism has to be traced back to the earliest encounters between Africans and Europeans, including the first seven centuries but especially during the slavery and colonial eras. Religion (notably Islam and Christianity), trade, education, culture, and “science” were important incubators and justifiers of racism, in earlier as well as recent times. The paper concludes by proposing some ways in which African theology can stay agile and keep pace with the resilient and adaptive forms of racism in contemporary Africa. 相似文献
3.
To understand how individuals adapt to and anticipate each other in joint tasks, we employ a bidirectional delay–coupled dynamical system that allows for mutual adaptation and anticipation. In delay–coupled systems, anticipation is achieved when one system compares its own time‐delayed behavior, which implicitly includes past information about the other system’s behavior, with the other system’s instantaneous behavior. Applied to joint music performance, the model allows each system to adapt its behavior to the dynamics of the other. Model predictions of asynchrony between two simultaneously produced musical voices were compared with duet pianists’ behavior; each partner performed one voice while auditory feedback perturbations occurred at unpredictable times during live performance. As the model predicted, when auditory feedback from one musical voice was removed, the asynchrony changed: The pianist’s voice that was removed anticipated (preceded) the actions of their partner. When the auditory feedback returned and both musicians could hear each other, they rapidly returned to baseline levels of asynchrony. To understand how the pianists anticipated each other, their performances were fitted by the model to examine change in model parameters (coupling strength, time‐delay). When auditory feedback for one or both voices was removed, the fits showed the expected decrease in coupling strength and time‐delay between the systems. When feedback about the voice(s) returned, the coupling strength and time‐delay returned to baseline. These findings support the idea that when people perform actions together, they do so as a coupled bidirectional anticipatory system. 相似文献
4.
Communication is a multimodal phenomenon. The cognitive mechanisms supporting it are still understudied. We explored a natural dataset of academic lectures to determine how communication modalities are used and coordinated during the presentation of complex information. Using automated and semi‐automated techniques, we extracted and analyzed, from the videos of 30 speakers, measures capturing the dynamics of their body movement, their slide change rate, and various aspects of their speech (speech rate, articulation rate, fundamental frequency, and intensity). There were consistent but statistically subtle patterns in the use of speech rate, articulation rate, intensity, and body motion across the presentation. Principal component analysis also revealed patterns of system‐like covariation among modalities. These findings, although tentative, do suggest that the cognitive system is integrating body, slides, and speech in a coordinated manner during natural language use. Further research is needed to clarify the specific coordination patterns that occur between the different modalities. 相似文献
5.
上博三《周易·夬卦》中的“丧”并非误字,马王堆汉墓帛书本与此相应的“牵”实为“桑”字,当读为“丧”,而今本中的“牵”可能系“桑”之形讹。 相似文献
6.
7.
Gábor L. Ambrus 《Zygon》2020,55(4):875-897
We are easily misguided as to the true nature of Facebook, and tend to treat it simply as a powerful technological instrument in the service of human intentions. We can, however, gain a better picture of it through recourse to the Jewish tradition of the golem, an image of human beings, created by them in a re-enactment of their own creation by God. It turns into a magic servant in modernity with an inherent dynamic running between its human and its subhuman characteristics. This dynamic is the main cause behind its becoming uncontrollable. In like manner, what is subhuman in Facebook serves its masters and functions under their total control, but also empowers Facebook's increasingly human operation, an algorithm-based capability which raises growing doubts about what counts as human. Facebook implies the crisis of humanity which coincides with the “death of God,” that is, the obsolescence of the idea of a divine creator. 相似文献
8.
Could superior self-control explain the gender difference in reading achievement favoring girls? To test this idea, we drew on a unique population-based sample (N = 11,336) where self-control was measured in kindergarten using a multimethod battery of assessments. Girls showed substantially higher levels of self-control in kindergarten (β = 0.47) and outperformed boys on standardized tests of reading achievement in third/fourth grade (β = 0.20). Further, kindergarten self-control prospectively predicted reading achievement throughout elementary school (β = 0.37). Connecting these findings, our mediation analyses revealed that the female self-control advantage in kindergarten could account for subsequent gender differences in reading achievement. Our results suggest that early gender differences in self-control may represent a key pathway through which gender disparities in reading skills, vocabulary knowledge, and reading comprehension occur. 相似文献
9.
A general model is developed for the analysis of multivariate multilevel data structures. Special cases of the model include repeated measures designs, multiple matrix samples, multilevel latent variable models, multiple time series, and variance and covariance component models.We would like to acknowledge the helpful comments of Ruth Silver. We also wish to thank the referees for helping to clarify the paper. This work was partly carried out with research funds provided by the Economic and Social Research Council (U.K.). 相似文献
10.
Marr MJ 《Journal of the experimental analysis of behavior》1992,57(3):249-266