全文获取类型
收费全文 | 201篇 |
免费 | 6篇 |
国内免费 | 1篇 |
专业分类
教育 | 152篇 |
科学研究 | 17篇 |
各国文化 | 7篇 |
体育 | 7篇 |
综合类 | 1篇 |
文化理论 | 2篇 |
信息传播 | 22篇 |
出版年
2023年 | 3篇 |
2022年 | 6篇 |
2021年 | 4篇 |
2020年 | 12篇 |
2019年 | 11篇 |
2018年 | 22篇 |
2017年 | 11篇 |
2016年 | 16篇 |
2015年 | 7篇 |
2014年 | 9篇 |
2013年 | 29篇 |
2012年 | 14篇 |
2011年 | 9篇 |
2010年 | 10篇 |
2009年 | 6篇 |
2008年 | 6篇 |
2007年 | 8篇 |
2006年 | 4篇 |
2005年 | 4篇 |
2004年 | 1篇 |
2003年 | 4篇 |
2002年 | 1篇 |
2001年 | 4篇 |
2000年 | 1篇 |
1999年 | 1篇 |
1998年 | 2篇 |
1997年 | 2篇 |
1994年 | 1篇 |
排序方式: 共有208条查询结果,搜索用时 0 毫秒
11.
Singapore has earned accolades as one of the leading education systems in the world, based on its record in international assessments, including TIMMS and PISA. This has contributed to the entrenchment of ‘assessment’ becoming an institutional authority of standards, teaching (performativity) and classroom learning. It is against, and amidst such contexts, that this article traces how the notion and discourse of formative assessment and Assessment for Learning (AfL) are widely introduced and used formally across all Singaporean schools, particularly after a recent introduction of new ‘Holistic and Balanced Assessment’ policies. We argue that the very institutional authority of successful high-stake examination results, which served as critical standards of performativity of teaching and learning in the classroom, is being challenged. The changing assessment context of Singaporean schools, therefore serves as an interesting case study site for studying how formative assessment and AfL can be adapted and understood when ‘learning’ is already seen to be successful. 相似文献
12.
Jung Cheol Shin 《Higher Education》2009,58(5):669-688
This study evaluated the effects of South Korea’s Brain Korea 21 (BK 21) project, a special research funding program designed
to build world-class research university. The effects were measured by examining the frequency of article publications in
SCI journals during the 1995–2005 period. The results of the analysis indicated that the growth of research publications from
Korean research universities was increased significantly following the implementation of the BK 21 project in 1999. In addition,
during the period under study, four research universities (Yonsei, Korea, Sungkyunkwan, and Hanyang) were newly emerged. However,
the growth rate of research publications was not different from that of the US and Japan, and even less than that of China.
Thus, although the BK 21 project contributed to the growth of research publications of Korean universities, the project did
not lessen the gap between Korea universities and world-class research universities in the US or Japan in number of publications. 相似文献
13.
In this article, the authors present the fabrication of an enzyme-entrapped alginate hollow fiber using a microfluidic device. Further use of enzyme-entrapped alginate hollow fibers as a biocatalytic microchemical reactor for chemical synthesis is also deliberated in this article. To ensure that there is no enzyme leaching from the fiber, fiber surfaces were coated with chitosan. To confine the mobility of reactants and products within the porous hollow fibers the entire fibers were embedded into a transparent polydimethylsiloxane (PDMS) matrix which also works as a support matrix. A vanadium-containing bromoperoxidase enzyme isolated from Corallina confusa was used as a model enzyme to demonstrate the use of these alginate hollow-fiber reactors in bromo-oxidation of phenol red to bromophenol blue at different dye flow rates. Stability of the entrapped enzyme at different temperatures and the effect of the chitosan coating on the reaction conversion were also studied. It was observed that molecules as big as 27 kDa can be retained in the matrix after coating with chitosan while molecules with molecular-weight of around 378 Da can still diffuse in and out of the matrix. The kinetic conversion rate in this microfluidic bioreactor was more than 41-fold faster when compared with the standard test-tube procedure. 相似文献
14.
15.
Dong-Hee Shin 《广播与电子媒介杂志》2016,60(1):140-159
The purpose of this study is to explore the ways in which users build parasocial relationships via social TV, and the implications for sociability and usability in future media. Focusing on parasocial behavior, this study examines how sociability and usability influence the attitudes and intentions of social TV (STV) users. The findings from experiments and a user survey indicate mediating and moderating roles of parasociability in the effect of performance on intention. The results showed that STV viewing and interaction were positively associated with parasocial experience. Parasocial relationships and interaction, in turn, were positively associated with the viewers’ perception of usability and sociability, and intentions. This study reveals the links among an emerging media experience, social TV, and users’ interaction with mediated realities. 相似文献
16.
Applying the Theory of Planned Behavior (TPB), this study examines parents’ attitudes, social norms, self-efficacy, and intentions regarding parental mediation of children’s smartphone use. A survey conducted with parents of young smartphone users aged 10–17 shows that parents tend to perceive discussion-based active mediation to be more desirable, as compared to rule-making restrictive mediation. Findings also indicate that the extent to which parents believe that they have control over their parental mediation practices plays an important role in forming positive intentions to practice parental mediation, regardless of the mediation domain. 相似文献
17.
18.
Soo Jin Lee Jaehong Shin 《International Journal of Science and Mathematics Education》2015,13(2):329-355
In the present study, we describe a participating student’s (Carol’s) distributive partitioning scheme and operations along with Steffe’s and his colleagues’ studies about children’s constructions of fraction knowledge as a particular model of mathematical learning. Analysis of Carol’s mathematical behaviors indicates that an operationally common mathematical behavior (distributive partitioning operation) was revealed in various mathematical problem situations such as fraction multiplication, fraction division, and multiplicative transformation between fractional quantities. It both provides a rationale for why becoming versed in one mathematical subject could facilitate working with another mathematical subject and also implies the necessity of describing and defining students’ mathematical behaviors from an operational view of knowledge, which might lead to building foundations of a substantial cognitive map for students’ mathematical development. 相似文献
19.
The current study took a person-centered approach to examine the heterogeneity of changes in children’s emotions and persistence during a goal-blocking task and examined how different profiles of emotions and persistence related to children’s self-regulation. Children’s anger, sadness, and persistence were rated in a goal-blocking task in toddlerhood (T1; N = 140, 72 boys, Mage = 2.67 years, 90.7% White) and preschool (T2). Children’s self-regulation, specifically sustained attention and engagement, was assessed at T1, T2, and early school-age (T3) from 2005 to 2012. Growth mixture modeling revealed two classes of children at T1 and three classes at T2 with different patterns of anger, sadness, and persistence. Children’s classification at T2, but not T1, significantly predicted their sustained attention and engagement both concurrently and longitudinally. 相似文献
20.
A new distributed fusion receding horizon filtering problem is investigated for uncertain linear stochastic systems with time-delay sensors. First, we construct a local receding horizon Kalman filter having time delays (LRHKFTDs) in both the system and measurement models. The key technique is the derivation of recursive error cross-covariance equations between LRHKFTDs in order to compute the optimal matrix fusion weights. It is the first time to present distributed fusion receding horizon filter for linear discrete-time systems with delayed sensors. It has a parallel structure that enables processing of multisensory time-delay measurements, so the calculation burden can be reduced and it is more reliable than the centralized version if some sensors turn faulty. Simulations for a multiple time-delays system show the effectiveness of the proposed filter in comparison with centralized receding horizon filter and non-receding versions. 相似文献