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131.
Reading and Writing - L1 and L2 writers attend to different aspects of the formulation subprocess of writing. L2 writers devote more time and attention to low-level aspects such as grammar... 相似文献
132.
Cultural Studies of Science Education - This forum article discusses learning and teaching in Science Centres in relation to gender. The starting point of this discussion is Eva Silfver’s... 相似文献
133.
Robert Hristovski Aleksandar Aceski Natalia Balague Ludovic Seifert Aleksandar Tufekcievski Aguirre Cecilia 《European Journal of Sport Science》2017,17(1):19-29
AbstractThe article discusses general structure and dynamics of the sports science research content as obtained from the analysis of 21998 European College of Sport Science abstracts belonging to 12 science topics. The structural analysis showed intertwined multidisciplinary and unifying tendencies structured along horizontal (scope) and vertical (level) axes. Methodological (instrumental and mode of inquiry) integrative tendencies are dominant. Theoretical integrative tendencies are much less detectable along both horizontal and vertical axes. The dynamic analysis of written abstracts text content over the 19 years reveals the contextualizing and guiding role of thematic skeletons of each sports science topic in forming more detailed contingent research ideas and the role of the latter in stabilizing and procreating the former. This circular causality between both hierarchical levels and functioning on separate characteristic time scales is crucial for understanding how stable research traditions self-maintain and self-procreate through innovative contingencies. The structure of sports science continuously rebuilds itself through use and re-use of contingent research ideas. The thematic skeleton ensures its identity and the contingent conceptual sets its flexibility and adaptability to different research or applicative problems. 相似文献
134.
Cecilia Sanna Armida Sodo Giuseppe Laguzzi Giovanna Mancini Marina Bicchieri 《Journal of Cultural Heritage》2009,10(3):356-361
The need to preserve cultural heritage on paper requires the setting up of methods and treatments that can be applied to original documents. The cellulose main degradation processes are hydrolysis and oxidation. Only the first one has been widely investigated. The Istituto Centrale per la Patologia del Libro (ICPL) focused its attention on oxidation phenomena and studied a particular class of reducing agents, namely the borane-amine complexes. During the investigation it was found that the borane tert-butylamine complex, besides being the most promising reducing agent, was also able to react with carboxylic functions. In the present study 1H and 13C NMR, Pulsed field gradient NMR spectroscopy as well as Raman spectroscopy were used as analytical tools to disclose the mechanism of the interaction between the borane tert-butylamine complex and the carboxylic functions. Given the complexity of the paper/environment interactions and the subsequent degradation phenomena, we worked on simplified models based on small carbohydrate molecules in order to reproduce the behavior of degraded paper after reductive restoration. Modified D-glucose and D-cellobiose were used in this first step in order to set up the analytical methods before approaching more complex systems such as microcrystalline cellulose and paper. Our results give the experimental evidence that borane tert-butylamine complex is also able to neutralize acidic functions. This finding has important perspectives in paper restoration. 相似文献
135.
136.
Small enterprises are facing significant challenges to become suppliers of bigger customers due to the excessive costs associated with accessing a vast market of potential customers. It is essential for small businesses to adopt an ERP system to maintain control of their operations and to compete globally. An ERP implementation is expensive and risky for all businesses, but it is still more challenging for small businesses, which have particular characteristics. We identified from archived literature, key decisions necessary in selecting and implementing an ERP system. While these critical decisions are applicable to all types of businesses, the focus of this research was to recommend the best practices for each one of these key decisions for small businesses. We interviewed six small businesses to recommend best practices for the critical decisions: (1) project team structure, (2) implementation strategy, (3) database conversion strategy, (4) transition technique, (5) risk management strategy and (6) change management strategy. Our results indicate that these best practices greatly enhanced the success of an ERP implementation for small businesses. Further, we recommend studying the impact of ERP systems on the small business’ participation in supply chain management. 相似文献
137.
Does the public communication of science influence scientific vocation? Results of a national survey
Stekolschik G Draghi C Adaszko D Gallardo S 《Public understanding of science (Bristol, England)》2010,19(5):625-637
The purpose of this work was to determine if public communication of science and technology (PCST) has any influence on people's decision to become dedicated to scientific research. For this reason, a national survey involving 852 researchers from all disciplines was conducted in Argentina. The results showed that the factors affecting scientific vocation are many, and that, regardless of differences in gender, age or discipline, the greatest influence on the decision to go into scientific research is exerted by teachers. The analysis also demonstrated that different manifestations of PCST (science books, press articles, audiovisual material, and activities such as visits to science museums) play a significant role in awakening the vocation for science. From these results it may be stated that PCST--in addition to its function of informing and forming citizens--exerts a significant influence in fostering scientific vocation. 相似文献
138.
Cecilia H. S. Chan Johan Y. Y. Ng David Revalds Lubans 《Journal of sports sciences》2019,37(2):229-236
Associations between fundamental movement skills (FMS), perceived competence, enjoyment and physical activity (PA) have not been widely investigated among Chinese school children. We hypothesised that FMS would be directly related to self-reported and objectively measured PA, and indirectly related to these outcomes via perceived physical and movement skill competence, and enjoyment. Participants were 763 primary school children (age = 9.3 ± 1.7 years; 474 girls) across grades. FMS were measured for a subsample (n = 603) using Test of Gross Motor Development-2. PA using accelerometers was obtained from this subgroup (n = 238). All participating children completed a questionnaire measuring their PA participation, enjoyment, and perceived physical and movement skill competence. Structural equation modelling revealed positive associations between locomotor skills and perceived movement skill competence (β = .11, 95% CI [.001, .22]), and between perceived movement skill competence and objectively measured PA (β = .59, 95% CI [.04, 1.14]). Perceived physical competence and enjoyment mediated the association between locomotor skills and self-reported PA (β = .08, 95% CI [.02, .12]), but not objectively measured PA. Given inconsistent findings for subjective and objective measures of PA, further mediation analyses of the association between FMS and PA may be warranted. 相似文献
139.
Parents' involvement in children's learning in the United States and China: implications for children's academic and emotional adjustment 总被引:2,自引:0,他引:2
This research examined parents' involvement in children's learning in the United States and China. Beginning in seventh grade, 825 American and Chinese children (mean age=12.74 years) reported on their parents' involvement in their learning as well as their parents' psychological control and autonomy support every 6 months until the end of 8th grade. Information on children's academic and emotional adjustment was obtained. American (vs. Chinese) parents' involvement was associated less with their control and more with their autonomy support. Despite these different associations, parents' heightened involvement predicted children's enhanced engagement and achievement similarly in the United States and China. However, it predicted enhanced perceptions of competence and positive emotional functioning more strongly in the United States than China. 相似文献
140.
Children's and Adolescents' Accounts of Helping and Hurting Others: Lessons About the Development of Moral Agency
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Holly E. Recchia Cecilia Wainryb Stacia Bourne Monisha Pasupathi 《Child development》2015,86(3):864-876
This study examined children's and adolescents' narrative accounts of everyday experiences when they harmed and helped a friend. The sample included 100 participants divided into three age groups (7‐, 11‐, and 16‐year‐olds). Help narratives focused on the helping acts themselves and reasons for helping, whereas harm narratives included more references to consequences of acts and psychological conflicts. With age, however, youth increasingly described the consequences of helping. Reasons for harming others focused especially on the narrator's perspective whereas reasons for helping others were centered on others' perspectives. With age, youth increasingly drew self‐related insights from their helpful, but not their harmful, actions. Results illuminate how reflections on prosocial and transgressive experiences may provide distinct opportunities for constructing moral agency. 相似文献