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461.
情境模型中的时间表征研究   总被引:1,自引:0,他引:1  
阅读理解中情境模型的建构是当今阅读研究的热点 ,自Zwaan等人提出事件标记模型理论以来 ,很多研究者对影响情境模型建构的空间维度进行了深入的研究 ,尽管对情境模型中时间维度的研究相对缺乏 ,但仍得出了一些有价值的研究成果。本文对情境模型中时间表征的理论假设、实验研究、技术手段及主要研究结论作了介绍和评析 ,并对未来的研究方向进行了展望。  相似文献   
462.
Causation in a New Old Key   总被引:1,自引:0,他引:1  
Meixner  Uwe 《Studia Logica》2004,76(3):343-383
I argue (1) that it is not philosophically significant whether causation is linguistically represented by a predicate or by a sentence connective; (2) that there is no philosophically significant distinction between event- and states-of-affairs-causation; (3) that there is indeed a philosophically significant distinction between agent- and event-causation, and that event-causation must be regarded as an analog of agent-causation. Developing this point, I argue that event-causation's being in the image of agent-causation requires, mainly, (a) that the cause is temporally prior to the effect, (b) that the cause necessitates (is sufficient with necessity) for the effect. Causal necessity is explained as a derivative of nomological necessity, and finally, via a definition of the causal sentence connective, the logic of event-causation is shown to be a part of temporal modal logic.  相似文献   
463.
Researchers have demonstrated that competency judgments can vary depending on the source of self-evaluation used. This study investigated age and gender differences in 459 adult tennis players' importance ratings for ten different competence information sources. As predicted, younger adults were more likely than older adults to value temporal comparisons, both past-to-present (i.e., personal improvement) and present-to-future (i.e., comparisons with future selves). Younger adults were more likely to value feedback from family for self-evaluation. Older adults were slightly more likely to rate comparisons with agemates as important. Women more than men valued feedback from tennis others, effort, and liking for the sport. The findings are consistent with theoretical models and point to new areas of investigation.  相似文献   
464.
In this paper we show that the class of fork squares has a complete orthodox axiomatization in fork arrow logic (FAL). This result may be seen as an orthodox counterpart of Venema's non-orthodox axiomatization for the class of squares in arrow logic. FAL is the modal logic of fork algebras (FAs) just as arrow logic is the modal logic of relation algebras (RAs). FAs extend RAs by a binary fork operator and are axiomatized by adding three equations to RAs equational axiomatization. A proper FA is an algebra of relations where the fork is induced by an injective operation coding pair formation. In contrast to RAs, FAs are representable by proper ones and their equational theory has the expressive power of full first-order logic. A square semantics (the set of arrows is U×U for some set U) for arrow logic was defined by Y. Venema. Due to the negative results about the finite axiomatizability of representable RAs, Venema provided a non-orthodox finite axiomatization for arrow logic by adding a new rule governing the applications of a difference operator. We address here the question of extending the type of relational structures to define orthodox axiomatizations for the class of squares. Given the connections between this problem and the finitization problem addressed by I. Németi, we suspect that this cannot be done by using only logical operations. The modal version of the FA equations provides an orthodox axiomatization for FAL which is complete in view of the representability of FAs. Here we review this result and carry it further to prove that this orthodox axiomatization for FAL also axiomatizes the class of fork squares.  相似文献   
465.
Marx  Maarten 《Studia Logica》2002,72(2):233-252
The complexity of the satisfiability problems of various arrow logics and cylindric modal logics is determined. As is well known, relativising these logics makes them decidable. There are several parameters that can be set in such a relativisation. We focus on the following three: the number of variables involved, the similarity type and the kind of relativised models considered. The complexity analysis shows the importance and relevance of these parameters.  相似文献   
466.
Monodic Packed Fragment with Equality is Decidable   总被引:1,自引:1,他引:0  
Hodkinson  Ian 《Studia Logica》2002,72(2):185-197
We prove decidability of satisfiability of sentences of the monodic packed fragment of first-order temporal logic with equality and connectives Until and Since, in models with various flows of time and domains of arbitrary cardinality. We also prove decidability over models with finite domains, over flows of time including the real order.  相似文献   
467.
如何提高人们的幸福感是各领域积极探索的问题,孝道在几千年的历史演变和人们的幸福生活中占据重要的位置,然而其在当代市场经济环境下,具有怎样积极的时代内涵和特征,孝道与幸福感之间存在怎样的内在心理机制,以及孝道能否为提高行孝者的幸福感做出贡献等问题尚存在疑问,积极心理学为解决这些问题提供了很好的视角。这些问题的澄清为提升人们的幸福感,促进行孝者自觉自愿地行孝,解决老龄化问题以及和谐社会的构建提供了新的启示。  相似文献   
468.
The present study investigated exposure to violence and its association with brain function and hair cortisol concentrations in Latin‐American preadolescents. Self‐reported victimization scores (JVQ‐R2), brain imaging (fMRI) indices for a social cognition task (the ‘eyes test’), and hair cortisol concentrations were investigated, for the first time, in this population. The eyes test is based on two conditions: attributing mental state or sex to pictures of pairs of eyes (Baron‐Cohen, Wheelwright, Hill, Raste, & Plumb, 2001). The results showed an association among higher victimization scores and (a) less activation of posterior temporoparietal right‐hemisphere areas, in the mental state condition only (including right temporal sulcus and fusiform gyrus); (b) higher functional connectivity indices for the Amygdala and Right Fusiform Gyrus (RFFG) pair of brain regions, also in the mental state condition only; (c) higher hair cortisol concentrations. The results suggest more exposure to violence is associated with significant differences in brain function and connectivity. A putative mechanism of less activation in posterior right‐hemisphere regions and of synchronized Amygdala: RFFG time series was identified in the mental state condition only. The results also suggest measurable effects of exposure to violence in hair cortisol concentrations, which contribute to the reliability of self‐reported scores by young adolescents. The findings are discussed in light of the effects of exposure to violence on brain function and on social‐cognitive development in the adolescent brain. A video abstract of this article can be viewed at https://www.youtube.com/watch?v=qHcXq7Y9PBk  相似文献   
469.
视觉统计学习是指个体依据视觉刺激之间的转接概率来掌握统计规律的过程。本研究通过5个实验探讨了个体基于名人面孔视觉特征和语义信息进行视觉统计学习的加工机制。每个实验均包括熟悉(学习)和测试两个阶段:在熟悉阶段, 让被试观看名人面孔并完成重复图片探测的无关任务; 在测试阶段, 让被试进行二选一迫选任务。其中, 实验1和2分别考察基于名人面孔视觉特征和语义信息的视觉统计学习效果; 实验3分别考察基于名人面孔视觉特征和语义信息视觉进行统计学习的精确性; 实验4进一步考察基于名人面孔视觉特征和语义信息进行视觉统计学习的时间特征; 实验5验证基于名人面孔视觉特征的视觉统计学习具有面孔特异性。结果表明:个体能同时基于名人面孔视觉特征和语义信息进行精确的视觉统计学习; 基于正立名人面孔的视觉统计学习效果显著高于基于倒置名人面孔的视觉统计学习效果; 虽然基于视觉特征和语义信息的统计加工都具有一致的精确性, 但后者需要更多的加工时间。这提示:基于名人面孔视觉特征的视觉统计学习具有面孔特异性, 个体基于名人面孔视觉特征和语义信息的视觉统计学习过程是分离的, 统计运算发生于面孔特征加工完成之后。  相似文献   
470.
幸福评价的时间轨迹是指人们对自己的过去、现在和将来的幸福评价的轨迹。从过去、现在和将来角度来研究幸福, 对于全面理解幸福本质具有重要的意义。本研究用两项研究探索了中国大学生的幸福评价的时间轨迹。研究1让130名大学生完成时间维度生活满意度量表, 结果发现, 中国大学生认为过去与现在的幸福没有显著区别, 将来比过去和现在都幸福, 即过去幸福=现在幸福 < 将来幸福, 这与西方的研究结果过去幸福 < 现在幸福 < 将来幸福的轨迹不同。研究2采用实验法, 让45名大学生对描述幸福和不幸福的形容词进行评定, 再次支持了中国大学生的这一幸福评价的时间轨迹。不幸福评价的时间轨迹呈现出过去不幸福=现在不幸福 > 将来不幸福的趋势。  相似文献   
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