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关于学习环模式的研究综述 总被引:4,自引:0,他引:4
学习环模式是一种有效的科学学习与教学模式。西方科学教育工作者对此做了大量研究,取得了丰硕成果。本文综述了学习环模式的理论基础、基本结构与发展。这一模式对于我国当前中小学科学课程设计和探究性学习的开展有一定的借鉴意义。 相似文献
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We examined whether regulatory fit effects are asymmetric—namely, whether they occur only among individuals with a promotion focus or a prevention focus. We adopted a task where individuals make moral judgments of other-oriented lies and conducted three studies. The results indicated that prevention-focused individuals judged other-oriented lies based on a vigilant strategy as more moral than lies based on an eager strategy (Studies 1 and 2). Meanwhile for promotion-focused individuals, there were no differences between eager and vigilant strategies on moral judgments of other-oriented lies. Additionally, the results suggested that the feeling of rightness is an underlying mechanism of the regulatory fit effects of prevention focus (Study 3). 相似文献
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On the basis of three annual waves of data obtained from 268 Chinese couples, we tested an actor–partner interdependence mediation model in which spouses’ neuroticism was linked to their own and partners’ marital satisfaction through both intrapersonal processes (i.e., marital attribution) and interpersonal processes (i.e., marital aggression). Considering intra‐ and interpersonal processes simultaneously, four indirect, mediating pathways were identified: Time 1 Wives’ Neuroticism → Time 2 Wives’ Attribution or Aggression, while controlling for Time 1 Wives’ Attribution or Aggression → Time 3 Wives’ or Husbands’ Marital Satisfaction, while controlling for Time 1 Wives’ or Husbands’ Marital Satisfaction. This study not only adds to a limited body of research examining why neuroticism is associated with conjugal well‐being, but also extends prior research by focusing on Chinese couples and utilizing a longitudinal, dyadic mediation model. Such findings have important practical implications. Couples involving neurotic partners may benefit from interventions based on cognitive‐behavioral approaches. When working with couples challenged by neuroticism, practitioners need to help them address dysfunctional interactive patterns as well as distorted cognitive styles. 相似文献
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Xiaojie Zhao Changzeng Fan Ronghua Yu Pengbin Yuan 《Philosophical Magazine Letters》2019,99(3):102-109
7055 Al alloys samples were prepared by spray forming and hot-extrusion followed by two different aging treatment procedures. Their different distributions of GP zones, and nanoscale precipitates η′ (MgZn) and η (MgZn2) are extensively investigated by transmission electron microscope (TEM). The mechanical properties, including tensile strength, Vickers hardness and elongation of both aged 7055 Al alloys, have also been measured and analysed. It is found that T6 and T76 aging treatment results in quite different microstructure and mechanical properties. The outstanding performance of the 7055 Al alloys after T6 aging treatment is attributed to nanoscale semi-coherent dispersion precipitates. 相似文献
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M. X. Guo Y. D. Zhang B. Yuan J. S. Zhang L. Z. Zhuang 《Philosophical Magazine Letters》2019,99(2):49-56
We report on a study of the influence of aging pathways on the evolution of solute-rich features in peak-aged Al-Mg-Si-Cu alloys. The concentration and partitioning ratios of Mg, Si and Cu and Mg/Si ratios in the heterogeneous solute-rich features all increase with increasing size, with Si exhibiting the highest partitioning ratio, but notably these ratios change dramatically depending on the aging pathway selected. Accordingly, the short-time age hardening response can be enhanced by promoting both homogeneous and heterogeneous precipitate nucleation, while simultaneous improvements in peak-aged strength and elongation can be attained by a vacancy-assisted aging pathway. 相似文献
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Relevance Theory (RT) argues that human language comprehension processes tend to maximize “relevance,” and postulates that there is a relevance-based procedure that a hearer follows when trying to understand an utterance. Despite being highly influential, RT has been criticized for its failure to explain how speaker-related information, either the speaker’s abilities or her/his preferences, is incorporated into the hearer’s inferential, pragmatic process. An alternative proposal is that speaker-related information gains prominence due to representation of the speaker within higher level goal-directed schemata. Yet the goal-based account is still unable to explain clearly how cross-domain information, for example linguistic meaning and speaker-related knowledge, is integrated within a modular system. On the basis of RT’s cognitive requirements, together with contemporary cognitive theory, we argue that this integration is realized by utilizing working memory and that there exist conversational constraints with which the constructed utterance interpretation should be consistent. We illustrate our arguments with a computational implementation of the proposed processes within a general cognitive architecture.
Abbreviations: ACT-R Adaptive Control of Thought - RationalCOGENT Cognitive Objects within a Graphical ENvironmenTCS/SS Contention Scheduling/Supervisory SystemRBCP Relevance-Based Comprehension ProcedureRT Relevance Theory 相似文献
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The present study investigated how unconscious priming of impulsivity control helps improve the performance of behavioral inhibitory control (BIC) using a Go/No‐go task and a two‐choice oddball task. Participants were divided into three priming conditions: impulsivity‐avoiding (IA), calmness‐pursuit (CP), and control group. Accuracy (ACC) cost (frequent–infrequent) in both tasks and reaction‐time (RT) cost (infrequent–frequent) in the two‐choice oddball task were used to assess BIC ability before and after the unconscious priming. The ACC cost, either in the Go/No‐go or in the two‐choice oddball task, was enhanced posttest relative to pretest, as indicated by the main effect of time. This effect arose from significantly increased ACC cost during posttest relative to pretest in the control group but not the IA and CP groups. Although no interaction of time and group was found in ACC cost analysis in either task, the analysis of RT cost in the two‐choice oddball task showed a significant interaction between group and time. Specifically, the IA group showed similar RT cost during posttest versus pretest, while the RT cost was significantly enhanced during posttest versus pretest in the CP and control groups. These results suggest that unconscious pursuit of an impulsivity‐avoidance goal is more effective in preventing one's impulsive behavior pattern than that of a calmness pursuit. Moreover, RT cost in the two‐choice oddball task is a more sensitive index than the traditional ACC cost in assessing one's BIC function. 相似文献
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初中学生心理健康状况及其影响因素 总被引:8,自引:0,他引:8
本研究对441名初中学生进行问卷调查,结果发现:1.有7.5%的初中学生存在明显的心理健康问题。2.初中学生心理健康存在性别与年级的差异。女生比男生,初三、初二学生比初一学生有更多的心理健康问题。3.日常生活压力是影响初中学生心理健康的重要因素。4.解决问题、求助两种应付方式对学生的心理健康有积极作用,而自责、幻想、忍耐、合理化等应付方式则会危害心理健康。 相似文献