全文获取类型
收费全文 | 18497篇 |
免费 | 1513篇 |
国内免费 | 1167篇 |
专业分类
21177篇 |
出版年
2024年 | 34篇 |
2023年 | 280篇 |
2022年 | 274篇 |
2021年 | 316篇 |
2020年 | 654篇 |
2019年 | 657篇 |
2018年 | 626篇 |
2017年 | 734篇 |
2016年 | 717篇 |
2015年 | 469篇 |
2014年 | 651篇 |
2013年 | 2001篇 |
2012年 | 406篇 |
2011年 | 506篇 |
2010年 | 448篇 |
2009年 | 658篇 |
2008年 | 842篇 |
2007年 | 909篇 |
2006年 | 842篇 |
2005年 | 724篇 |
2004年 | 618篇 |
2003年 | 511篇 |
2002年 | 461篇 |
2001年 | 284篇 |
2000年 | 271篇 |
1999年 | 227篇 |
1998年 | 185篇 |
1997年 | 160篇 |
1996年 | 124篇 |
1995年 | 113篇 |
1994年 | 104篇 |
1993年 | 86篇 |
1992年 | 66篇 |
1991年 | 49篇 |
1990年 | 49篇 |
1989年 | 29篇 |
1988年 | 40篇 |
1985年 | 392篇 |
1984年 | 445篇 |
1983年 | 357篇 |
1982年 | 457篇 |
1981年 | 452篇 |
1980年 | 456篇 |
1979年 | 405篇 |
1978年 | 465篇 |
1977年 | 368篇 |
1976年 | 378篇 |
1975年 | 290篇 |
1974年 | 285篇 |
1973年 | 253篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
951.
952.
James Campbell 《Metaphilosophy》2021,52(1):10-26
This paper begins with a memoir of the author’s interactions with Joseph Margolis that delineates both Margolis’s importance as a teacher and their disagreements on aspects of American philosophy. It then turns to Margolis’s discussions of pragmatism as a philosophical movement, with an emphasis on his understanding of John Dewey. The paper considers, third, Margolis’s account of the decline and rebirth of pragmatism, the latter process attributed largely to the work of Richard Rorty. The paper concludes with an examination of what it sees as Margolis’s most valuable work: his explorations of the nature of the self and of human society. 相似文献
953.
冲突适应是重要的认知控制现象, 反映了认知控制的动态过程。然而, 目前为止对于冲突水平上的差异能否诱发冲突适应尚不清楚。本研究采用字母Flanker的变式, 通过改变目标-分心物的一致性操纵冲突水平, 探究冲突水平的变化对认知控制调整的影响。结果发现被试的反应时间随冲突水平的提高而增加; 而且先前试次的一致性影响当前试次的干扰效应, 无冲突和低冲突、无冲突和高冲突、低冲突和高冲突条件之间均出现了典型的冲突适应。本研究结果表明, 除了冲突的有无, 冲突水平的变化也能诱发冲突适应, 支持更大的冲突驱动更强的认知控制, 而且冲突诱发的认知控制的功能可能通过注意聚焦实现。这一发现为冲突监测理论的注意调节机制提供了直接的支持证据, 对于促进冲突适应的相关研究具有重要意义。 相似文献
954.
BackgroundInfant massage, in which mothers stroke their infant’s skin slowly and gently, can cause pleasant sensations in the infant that can be affected by the velocity of massage. However, the massage velocity at which infants feel the most pleasant sensations remains unclear.ObjectiveTo investigate the effects of massage velocity on heart rate (HR) and HR variability (HRV) in healthy infants.MethodTwenty-two infant-mother dyads two to seven months of age were recruited. Mothers stroked their infant’s skin at three massage velocities (5.0, 7.5, and 10.0 cm/s) in a randomized order for 15 min. The rhythm of massage velocity was calculated according to the length of three body areas. The massage velocity of the mothers was regulated using a metronome. HR and HRV (high frequency [HF] and low frequency [LF]) were measured at rest and during massage for each velocity. The effects on pleasantness were evaluated using percent change in median baseline value compared with median values for the three massage velocities. Statistical analysis was performed using analysis of variance mixed effect models to exclude “period” and “carryover” effects during massage.ResultsWhen measuring HF, massage (7.5 cm/s) caused a significant increase in pleasantness compared with 10.0 cm/s (p = 0.04). The HR and LF/HF ratio were not significantly changed between velocities.ConclusionResults of this study suggested that a massage velocity of 7.5 cm/s was the most pleasant for infants. Future research should investigate the relationship between an infant massage by optimal velocity and infant development in longitudinal studies. 相似文献
955.
通过分别以高频汉字(实验1)和图形非言语材料(实验2)为刺激的两个联合视觉注意任务, 并采用基于Budensen视觉注意理论的参数估计方法, 系统地探查小学三~六年级汉语发展性阅读障碍儿童的视觉同时性加工技能缺陷的内在机制。以43名汉语发展性阅读障碍儿童和46名生理年龄匹配典型发展儿童为被试, 每类被试均被分为小学中年级组(三、四年级)和高年级组(五、六年级)。两个实验均发现不同年级组的阅读障碍儿童在知觉加工速度参数上显著小于控制组儿童。在空间注意分布权重参数上, 实验1的结果显示, 不同于控制组儿童向左侧化发展的注意分布模式, 两个年级组的阅读障碍儿童均表现为无偏的注意分布; 而实验2未发现显著组别差异。且这两种同时性加工子技能分别与不同水平的汉语阅读技能密切相关。结果表明, 汉语阅读障碍儿童在同时加工多个视觉刺激时存在持续的知觉加工速度缓慢的问题, 在同时加工言语类刺激时还表现出异常的空间注意分布模式。本研究有助于从基础认知层面揭示汉语发展性阅读障碍儿童的缺陷机理, 为进一步设计相关的提高阅读效率的干预方案提供理论依据。 相似文献
956.
957.
In sentences such as “Some dogs are mammals,” the literal semantic meaning (“Some and possibly all dogs are mammals”) conflicts with the pragmatic meaning (“Not all dogs are mammals,” known as a scalar implicature). Prior work has shown that adults vary widely in the extent to which they adopt the semantic or pragmatic meaning of such utterances, yet the underlying reason for this variation is unknown. Drawing on theoretical models of scalar implicature derivation, we explore the hypothesis that the cognitive abilities of executive function (EF) and theory of mind (ToM) contribute to this observed variation. In Experiment 1, we show that individuals with better ToM are more likely to compute a scalar implicature and adopt the pragmatic meaning of an utterance; however, EF makes no unique contribution to scalar implicature comprehension after accounting for ToM. In Experiment 2, we replicate this finding and assess whether it generalizes to the comprehension of other pragmatic phenomena such as indirect requests (e.g., “It's hot in here” uttered to ask for something to be done) and metaphor (e.g., “to harvest courage”). This is the first evidence that differences in ToM are associated with pragmatic competence in neurotypical adults across distinct pragmatic phenomena. 相似文献
958.
959.
960.
Despite a recent surge of interest in philosophy as a way of life, it is not clear what it might mean for philosophy to guide one's life, or how a “philosophical” way of life might differ from a life guided by religion, tradition, or some other source. We argue against John Cooper that spiritual exercises figure crucially in the idea of philosophy as a way of life—not just in the ancient world but also today, at least if the idea is to be viable. In order to make the case we attempt to clarify the nature of spiritual exercises, and to explore a number of fundamental questions, such as “What role does reason have in helping us to live well?” Here we distinguish between the discerning and motivational powers of reason, and argue that both elements have limitations as guides to living well. 相似文献