全文获取类型
收费全文 | 254篇 |
免费 | 6篇 |
国内免费 | 1篇 |
专业分类
教育 | 137篇 |
科学研究 | 26篇 |
各国文化 | 6篇 |
体育 | 64篇 |
文化理论 | 6篇 |
信息传播 | 22篇 |
出版年
2023年 | 2篇 |
2022年 | 1篇 |
2021年 | 7篇 |
2020年 | 17篇 |
2019年 | 14篇 |
2018年 | 19篇 |
2017年 | 29篇 |
2016年 | 21篇 |
2015年 | 8篇 |
2014年 | 12篇 |
2013年 | 57篇 |
2012年 | 15篇 |
2011年 | 11篇 |
2010年 | 5篇 |
2009年 | 7篇 |
2008年 | 3篇 |
2007年 | 3篇 |
2006年 | 1篇 |
2005年 | 3篇 |
2004年 | 2篇 |
2003年 | 6篇 |
2001年 | 1篇 |
2000年 | 5篇 |
1999年 | 1篇 |
1998年 | 3篇 |
1995年 | 1篇 |
1993年 | 1篇 |
1987年 | 1篇 |
1985年 | 3篇 |
1983年 | 1篇 |
1972年 | 1篇 |
排序方式: 共有261条查询结果,搜索用时 15 毫秒
11.
Javier Tamarit 《Cultura y Educación》2013,25(1):81-94
El lenguaje verbal es nuestra red de carreteras, el sistema básico y central de la comunicación humana. No obstante, existen sujetos que no pueden acceder a él, como hay ciudadanos que no disponen de automóvil. El uso cada vez más generalizado en la educación y en el tratamiento de aquellas personas con déficits o alteraciones en sus posibilidades de comunicación de sistemas alternativos hace imprescindible conocer y evaluar estos sistemas. En este artículo se hace una revisión seria y a la vez guiada por los conocimientos de aplicación, de estos sistemas alternativos de comunicación. Sin embargo el interés de estos sistemas no puede limitarse a aquellos sujetos que no disponen del sistema normal, del mismo modo que el coche no se limita a los inválidos o la música a los ciegos. El conocimiento de los sistemas alternativos, aún cuando afecte más a personas con necesidades especiales, parece poder ser también una extensión natural para alumnos y profesores normales que desean ampliar extensiva, metacognitiva y humanamente su comunicación y su representación. 相似文献
12.
Ana Lilia Laureano-Cruces Javier Ramírez-Rodríguez Fernando de Arriaga Rafael Escarela-Pérez 《Interactive Learning Environments》2013,21(2):95-118
Intelligent learning systems (ILSs) have evolved in the last few years basically because of influences received from multi-agent architectures (MAs). Conflict resolution among agents has been a very important problem for multi-agent systems, with specific features in the case of ILSs. The literature shows that ILSs with cognitive or pedagogical agents are prone to arbitration methods, where as ILSs with reactive agents are much in favor of control mechanisms. For these kind of systems, different control types are proposed based on the different stimuli that these agents will receive. These stimuli are aspects to be evaluated during the teaching/learning process such as: (1) error analysis, (2) learning styles, (3) analogies, (4) social aspects, etc. The paper reviews several ILSs, related to our work; different control mechanisms are proposed to solve the agents' intervention conflicts. Finally, the use of several mechanisms is exemplified by the results of a specific ILS. 相似文献
13.
Jorge Feijoo Xosé Ramón Nóvoa Teresa Rivas María Jesús Mosquera Javier Taboada Cristina Montojo Fernando Carrera 《Journal of Cultural Heritage》2013,14(5):365-376
We describe the results of electromigration desalination of two soluble salt-contaminated Galician granites. The efficacy of electromigration, which had not been previously applied to granite, was assessed for two types of granite contaminated with a 20% NaCl solution and seawater. Desalination effectiveness was evaluated as follows: (1) analysis of anode and cathode ion content during testing; (2) analysis of ions at different distances from the electrodes after testing; (3) pH assessment of the stone surfaces; and (4) evaluation of colour changes. Results were very satisfactory; by the end of testing, chloride was reduced by almost 100% in both the NaCl and seawater contaminated samples. Sulfate reduction was also significant, despite this ion's lower mobility. The granite pH values remained close to neutral and colour changes were minimal. The difference in effectiveness of the process for the two types of stone was associated with their dissimilar pore structure. 相似文献
14.
Vietnam is an important case for studying the impact of foreign firms’ backward linkages on local firms’ productivity. As an emerging economy Vietnam became the second most popular FDI destination after China in Pacific Asia since 2014. Our empirical analysis for Vietnam as a whole demonstrates a significant difference in the productivity growth between domestic suppliers who have a direct linkage with foreign firms and non-suppliers. This is also true for the Southeast Region (SE) with Ho-Chi-Minh City as economic center. However, in the Red River Delta (RRD), that difference is not statistically significant. Based on in-depth interviews with domestic suppliers, we reveal that in the RRD, effects of foreign firms on the productivity upgrading of domestic suppliers are indirect and limited while internal factors like absorptive capacity are more important for the productivity growth. These regional differences can be traced back to different regional specializations which still persist from the pre-reform era. 相似文献
15.
16.
Pedro L. Valenzuela Michael McGuigan Guillermo Sánchez-Martínez Elaia Torrontegi Javier Vázquez-Carrión Zigor Montalvo 《Journal of sports sciences》2020,38(19):2273-2278
ABSTRACT The present study aimed to provide reference values for lower-limb muscle power assessed during the incremental jump squat (JS) test in elite athletes (i.e., professional athletes competing at international level). We pooled data from all JS tests performed by elite athletes of different sports in two high-performance centres between 2015 and 2019, and computed reference values (i.e., terciles) for mean power (MP), mean propulsive power (MPP), and peak power (PP). Reference values were obtained from 684 elite athletes (458 male and 226 female) of 16 different sports (boxing, judo, karate, fencing, taekwondo, wrestling, basketball, soccer, futsal, handball, rugby union, badminton, tennis, long distance running, triathlon, and sprinting). Significant differences (p < 0.001) were found between male and female athletes for MP (7.47 ± 1.93 and 6.15 ± 1.68 W·Kg?1, respectively), MPP (10.50 ± 2.75 and 8.63 ± 2.43 W·Kg?1), and PP (23.64 ± 6.12 and 19.35 ± 5.49 W·Kg?1). However, the velocity at which these power measures was attained seemed to be independent of sex (~0.95, 1.00 and 2.00 m·s?1 for mean, mean propulsive, and peak velocity, respectively) and homogeneous across different sport disciplines (coefficient of variation <10%). These data can be used to classify athletes’ power capabilities, and the optimum velocity ranges provided here could be useful for training purposes. 相似文献
17.
18.
19.
Peñaloza Gonzalo El-Hani Charbel N. Mosquera-Suárez Carlos Javier 《Science & Education》2021,30(4):931-965
Science & Education - Despite the importance of evolution to understand living phenomena, evolution teaching confronts several tensions, especially with respect to teachers’ and... 相似文献
20.
AbstractThe aim of this study was to examine the effects of two different instructional models (i.e. direct instructional model (DIM) and tactical games model (TGM)) with primary education students. Perceived exertion, affective valence, physical activity (PA) level, instruction time, active learning time, and relation of instruction/active learning time were measured with 256 primary education students during DIM and TGM 8 weeks’ intervention programs. Significant differences were found between the DIM and TGM in perceived exertion, PA level, instruction time and in the relation between instruction/active learning time (p?<?.01, ES=?0.4 to 1.1). By age group, the DIM had significantly higher PA level in students of 3rd grade of primary education (G3), 4th grade (G4) and 6th grade (G6) (p?<?.05 or p?<?.01, ES=?0.8 to ?0.4). The instructional model used during physical education classes can affect perceived exertion, PA level, instruction time, and the relation instruction/active learning time. 相似文献