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It has been suggested that a positive human–nature relationship is essential for countering today’s environmental problems. Prior environmental education research has focused largely on knowledge or attitudinal outcomes, and few studies have examined the ability of environmental education programmes to promote connectedness with nature. Therefore, our goal was to (1) examine differences in connectedness with nature among a sample of children with differing ages and academic tracks, and (2) investigate whether environmental education can help promote and sustain connectedness with nature. With a pre-, post- and retention test design, we assessed a comprehensive four-day environmental education programme on water at a school field centre, using the inclusion of nature in self (INS) scale to identify the change in connectedness of 9–10-year-old pupils and 11–13-year-old pupils. We found that younger children and university-track pupils had higher INS scores than older children and general-education-track pupils, respectively. Participating in environmental education resulted in a robust short-term increase in connectedness with nature in both age groups. However, only the younger pupils’ connectedness remained sustained four weeks following the treatment. Environmental educators should keep in mind that strengthening connectedness to nature is more sustainable before the age of 11.  相似文献   
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This paper investigates the workings of institutional logics in practice, by focusing in particular on the interplay between material, practical and linguistic dimensions of practices. In other words, drawing on Bourdieu's sens pratique, the paper explores the logic of practice in the practice of logics through a six months full-time ethnographic study at Il Sole-24 Ore, the largest Italian financial newspaper, between 2007 and 2008. An original conceptual framework is developed to analyse how the logic of journalism is enacted vis-à-vis that of advertising in a setting in which an old technology for news production – print newspaper – coexists with a new one – website – and thus encounters between new and old technological possibilities make workings of institutional logics particularly visible. The findings point out different mechanisms of institutional work dealing with actions that, made possible by new technological possibilities, are potentially, but not necessarily classified as divergent from institutional logics.  相似文献   
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The authors of this article begin with an introduction to the holistic concept of family literacy and learning and its implementation in various international contexts, paying special attention to the key role played by the notions of lifelong learning and intergenerational learning. The international trends and experiences they outline inspired and underpinned the concept of a prize-winning Family Literacy project called FLY, which was piloted in 2004 in Hamburg, Germany. FLY aims to build bridges between preschools, schools and families by actively involving parents and other family members in children’s literacy education. Its three main pillars are: (1) parents’ participation in their children’s classes; (2) special sessions for parents (without their children); and (3) joint out-of-school activities for teachers, parents and children. These three pillars help families from migrant backgrounds, in particular, to develop a better understanding of German schools and to play a more active role in school life. To illustrate how the FLY concept is integrated into everyday school life, the authors showcase one participating Hamburg school before presenting their own recent study on the impact of FLY in a group of Hamburg primary schools with several years of FLY experience. The results of the evaluation clearly indicate that the project’s main objectives have been achieved: (1) parents of children in FLY schools feel more involved in their children’s learning and are offered more opportunities to take part in school activities; (2) the quality of teaching in these schools has improved, with instruction developing a more skills-based focus due to markedly better classroom management und a more supportive learning environment; and (3) children in FLY schools are more likely to have opportunities to accumulate experience in out-of-school contexts and to be exposed to environments that stimulate and enhance their literacy skills in a tangible way.  相似文献   
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Introduction

Recently several diagnostic manufacturers have launched new 25-hydroxy-vitamin D (25[OH]D) assays, which are aligned to the National Institute of Standards and Technology (NIST) Standard Reference Materials (SRM) (NIST, Gaithersburg, Maryland). The aim of this study was to compare the performance of one liquid chromatography-tandem mass spectrometry (LC-MS/MS) method, one enzyme linked immunosorbent assay (ELISA), and one recalibrated and previous version of a chemiluminescence immunoassay (CLIA).

Material and methods

Serum-aliquots of 198 patient samples from routine 25(OH)D analysis were measured by the ClinMass® LC-MS/MS Complete Kit (RECIPE Chemicals + Instruments GmbH, Munich, Germany), the ORGENTEC 25(OH)D3/D2 ELISA (ORGENTEC Diagnostika GmbH, Mainz, Germany), the recalibrated Immunodiagnostic Systems (IDS)-iSYS 25(OH)DS and the previous used IDS-iSYS 25(OH)D CLIA (Immunodiagnostic Systems Ltd, Boldon, United Kingdom). Bland-Altman and Deming regression analyses were calculated for methods comparison of all tested 25(OH)D assays. The LC-MS/MS method was defined as the reference method. Within-run and between-run precision measurements were performed for all methods with three different concentration levels.

Results

Compared to the LC-MS/MS method, the new IDS-iSYS 25(OH)DS and ORGENTEC 25(OH)D3/D2 assay demonstrated mean relative biases of 16.3% and 17.8%. The IDS-iSYS 25(OH)D assay showed the lowest mean bias of 1.5%. Deming regression analyses of the recalibrated IDS-iSYS 25(OH)DS and the ORGENTEC 25(OH)D3/D2 assay showed proportional differences, when compared to the reference method. All assays showed a within-run and between-run imprecision of ≤ 20% at each of the evaluated concentration levels.

Conclusions

The evaluated standardized immunoassays and LC-MS/MS are useful methods for measuring 25(OH)D serum-levels in clinical laboratories.Key words: vitamin D, immunoassays, liquid chromatography-tandem mass spectrometry, reference standards, quality improvement  相似文献   
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The authors examined the individual and combined influences of 2 factors that have been shown to benefit motor learning: an external focus of attention and enhanced performance expectancies. Another purpose of this study was to gain further insight into the mechanisms underlying these variables. In a factorial design, participants learning a novel motor skill (i.e., throwing with the non-dominant arm) were or were not given external focus instructions, and were or were not provided bogus positive social-comparative feedback to enhance their expectancies. This resulted in 4 groups: external focus, enhanced expectancy, external focus/enhanced expectancy and control. External focus instructions and enhanced expectancies had additive benefits for learning: the external focus/enhanced expectancy group demonstrated the greatest throwing accuracy on both retention and transfer tests, while the accuracy scores of the external focus and enhanced expectancy groups were lower, but higher than those of the control group. Furthermore, self-efficacy was increased by both external focus and enhanced expectancy, and predicted retention and transfer performance. Positive affect was heightened in the enhanced expectancy and external focus/enhanced expectancy groups after practice and predicted transfer performance. The findings suggest that the learning benefits of an external focus and enhanced expectancies mediate learning through partially different mechanisms.  相似文献   
100.
Performer autonomy has been shown to contribute to effective motor performance and learning. Autonomy support is therefore a key factor in the OPTIMAL theory of motor learning (Wulf, G., & Lewthwaite, 2016). The purpose of the present study was to examine whether supporting individuals’ need for autonomy by giving them choices would increase movement efficiency. Such a finding would be consistent with the OPTIMAL theory prediction that autonomy facilitates the coupling of goals and actions. Participants (N = 32) were asked to run at a submaximal intensity (65% of VO2 max) for 20 minutes. Before the run, participants in a choice group were able to choose 5 of 10 photos as well as the order in which they would be shown to them on a computer screen during the run. Control group participants were shown the same photos, in the same order, chosen by their counterparts in the choice group. Throughout the run, oxygen consumption and heart rate were significantly lower in the choice group than the control group. Thus, providing autonomy support resulted in enhanced running efficiency. The present findings are in line with the notion that autonomy facilitates goal-action coupling.  相似文献   
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