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A report of the evaluation of various test forms commonly employed in speech reception measurement with a view toward determination of non‐chance response set. 相似文献
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Self-regulatory strategies of goal setting and goal striving are analyzed in three experiments. Experiment 1 uses fantasy realization theory (Oettingen, in: J. Brandstätter, R.M. Lerner (Eds.), Action and Self Development: Theory and Research through the Life Span, Sage Publications Inc, Thousand Oaks, CA, 1999, pp. 315–342) to analyze the self-regulatory processes of turning free fantasies about a desired future into binding goals. School children 8–12 years of age who had to mentally elaborate a desired academic future as well as present reality standing in its way, formed stronger goal commitments than participants solely indulging in the desired future or merely dwelling on present reality (Experiment 1). Effective implementation of set goals is addressed in the second and third experiments (Gollwitzer, Am. Psychol. 54 (1999) 493–503). Adolescents who had to furnish a set educational goal with relevant implementation intentions (specifying where, when, and how they would start goal pursuit) were comparatively more successful in meeting the goal (Experiment 2). Linking anticipated situations with goal-directed behaviors (i.e., if–then plans) rather than the mere thinking about good opportunities to act makes implementation intentions facilitate action initiation (Experiment 3). 相似文献
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Drug discovery is an expensive and lengthy process. Among the different phases, drug discovery and preclinical trials play an important role as only 5–10 of all drugs that begin preclinical tests proceed to clinical trials. Indeed, current high-throughput screening technologies are very expensive, as they are unable to dispense small liquid volumes in an accurate and quick way. Moreover, despite being simple and fast, drug screening assays are usually performed under static conditions, thus failing to recapitulate tissue-specific architecture and biomechanical cues present in vivo even in the case of 3D models. On the contrary, microfluidics might offer a more rapid and cost-effective alternative. Although considered incompatible with high-throughput systems for years, technological advancements have demonstrated how this gap is rapidly reducing. In this Review, we want to further outline the role of microfluidics in high-throughput drug screening applications by looking at the multiple strategies for cell seeding, compartmentalization, continuous flow, stimuli administration (e.g., drug gradients or shear stresses), and single-cell analyses. 相似文献
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Gabriele B. Breuer Peter Kauf Reto Rupf 《International Journal of Science Education》2013,35(16):2664-2687
Children have served as research subjects in several surveys on attitudes to insects and invertebrates. Most of the studies have used quantitative scoring methods to draw conclusions. This paper takes a different approach as it analyzes children's free-text comments to gain an understanding of their viewpoints. A total of 246 children aged 9–13 completed a standard questionnaire regarding their attitudes toward 18 invertebrates indigenous to Switzerland. Fourteen insect species and four other invertebrates were individually presented in a color photograph without any further background information. The children were given the opportunity to provide comments on each animal to explain the attitude score they had awarded. Nearly 5,000 comments were coded and categorized into 7 positive and 9 negative categories. A significant correlation between fear and disgust was not detected. Based on a hierarchical cluster analysis, we concluded that flying in the air versus crawling on the ground was a major differentiator for attitude and underlying reasons, only being trumped by the fear of getting stung. The visualization of our findings in a cluster heat map provided further insights into shared statement categories by species. Our analysis establishes that fear and disgust are separate emotions with regard to insects and other invertebrates. Based on our findings, we believe that prejudice-based fear and culturally evolved revulsion can be overcome. We suggest promoting environmental education programs, especially if they allow for personal experience, provide information in emotion-activating formats, and include content that resolves existing misinformation and myths. 相似文献
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Angela Lee Duckworth Heidi Grant Benjamin Loew Gabriele Oettingen Peter M. Gollwitzer 《教育心理学》2011,31(1):17-26
Adolescents struggle with setting and striving for goals that require sustained self‐discipline. Research on adults indicates that goal commitment is enhanced by mental contrasting (MC), a strategy involving the cognitive elaboration of a desired future with relevant obstacles of present reality. Implementation intentions (II), which identify the action one will take when a goal‐relevant opportunity arises, represent a strategy shown to increase goal attainment when commitment is high. This study tests the effect of mental contrasting combined with implementation intentions (MCII) on successful goal implementation in adolescents. Sixty‐six 2nd‐year high school students preparing to take a high‐stakes exam in the fall of their third year were randomly assigned to complete either a 30‐minute written mental contrasting with implementation intentions intervention or a placebo control writing exercise. Students in the intervention condition completed more than 60% more practice questions than did students in the control condition. These findings point to the utility of directly teaching to adolescents mental contrasting with implementation intentions as a self‐regulatory strategy of successful goal pursuit. 相似文献
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It has been shown that practice in dyads, as compared to individual practice, can enhance motor learning and increase the efficiency of practice (as two participants can be trained at the same time; Shea, Wulf, & Whitacre, 1999). The dyad practice protocol used by Shea et al. included both observation and dialogue between partners. Thus, it was not clear whether the learning benefits of dyad practice were due to observation, dialogue, or both. The present study examined the individual and interactive effects of observation and dialogue. The task used was speed cup stacking. Participants practiced under one of four conditions: observation/dialogue, observation/no dialogue, no observation/dialogue, and no observation/no dialogue. The two conditions that included observational practice were more effective (i.e., produced faster movement times) than the two conditions without it, both during practice and on a retention test performed under individual performance conditions. This suggests that the learning advantages of dyad practice are primarily due to the opportunity to observe another learner. 相似文献
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AbstractThe purpose of this paper is to outline some new developments in a mature research program that sees administrative theory as cohering with natural science and uses a coherence theory of epistemic justification to shape the content and structure of administrative theory. Three main developments are discussed. First, the paper shows how to deal with the evaluation of theories (of, say, leadership) where there is a demand that a theory needs to be context relevant, but also comprehensive. The solution is to allow context to determine the scope of comprehensiveness. Second, the paper develops an argument structure employing a coherentist epistemology for how ethical claims can be incorporated into administrative theories. Finally, the paper, drawing on research in neuroscience, argues for the relevance of emotion in rational decision-making. Contrary to the belief that emotion compromises rationality, the paper argues that it is essential for rationality. 相似文献