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131.
132.
In this study, we analysed running world records and found that the mean speed of the race, μ, as a function of the record time, τ, can be described asymptotically by two well-defined scaling laws of the form u ?s τ - β. There is a break in the scaling laws (?1000m) between the shorter and the longer races at a characteristic time of around 150-170 s, after which a new scaling regime emerges. This is the first occasion that this characteristic time has been clearly found in physical terms; we interpreted it as the transition time between the anaerobic and the aerobic energy expenditure of athletes. This phenomenon is independent of the athletes' sex and is also found in swimming races with similar values of the characteristic time. We also investigated the forecasting of world records using historical data. Using an approach based on the identification of non-Poissonian events for a sequence of temporal point processes, we found that the sequence of improvements in all athletic records from 1900 to the present day cannot be considered as a sequence of completely random events. 相似文献
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We explored the effects of Fast ForWord (FFW) training on reading and spoken language skills in children with difficulties
in phonemic awareness and word identification. Gains were examined both immediately after treatment and over a period of two
years. In the short term, children who received FFW training were compared to children who received Orton Gillingham (OG)
training. The FFW group was also compared to a matched longitudinal control group (LC); all participants in the FFW and LC
groups received similar multisensory structured language instruction over two academic years. The FFW and OG groups made similar
gains in phonemic awareness. However, the children who received FFW training did not show significant gains in word identification
or word attack whereas the children who received OG training made significant gains in word attack. Immediately after treatment,
the FFW group showed significant gains in speaking and syntax, but these gains were not maintained over two years. The FFW
group did not differ significantly from the LC group in any areas over the two years. Children in both groups made significant
progress in phonemic awareness and reading. 相似文献
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Sandra Soliday Hong Noreen Yazejian Shannon Guss Amanda Stein Maia Connors Diane Horm 《Early education and development》2019,30(8):1084-1093
ABSTRACTResearch Findings: This article summarizes current peer-reviewed research and conceptualizations of collaboration and presents a new conceptual model. Authors found that the existing peer-reviewed literature does not adequately reflect emerging understandings of the nature of early childhood collaborations or the contributions such collaborations make to outcomes. The paper fills a gap in the literature by presenting a broader conceptualization of collaboration in which stakeholders work together and use data to achieve common goals through engaging in shared activities. Authors provide examples of how collaborations take place within a network of early care and education programs. Practice or Policy: Practitioners can use information presented in this to support collaborations at different levels of an early childhood system. More research needs to be conducted to identify and measure collaborative activities and outcomes across levels of collaboration to align with a broader definition of collaboration. 相似文献
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Sandra Crosser 《Early Childhood Education Journal》1994,22(1):7-11
With panic clearly showing in his eyes, Josh dropped to the floor, locked his dad's leg between both arms, and screamed. It
was Josh's first day at school. While young children's fears may not always appear to be rational in the eyes of adults, every
child's fearful response deserves to be acknowledged as a genuine reaction to an actual or perceived threat. Because fear
has the potential to interfere with the young child's quality of life, it would seem important to understand the nature and
normal developmental course of early childhood fears. 相似文献
139.
Carlos Andrés Rosero-Zambrano Alba Avila Luz Adriana Osorio Sandra Aguirre 《Journal of Science Education and Technology》2018,27(2):177-187
The coupling of the traditional classroom instruction and a virtual learning environment (VLE) in an engineering course is critical to stimulating the learning process and to encouraging students to develop competencies outside of the classroom. This can be achieved through planned activities and the use of information and communication technologies (ICTs), resources designed to complement students’ autonomous learning needs. A quantitative analysis of students’ academic performance using final course grades was performed for a fundamentals of electronics course and we examine students’ perception of their autonomy using surveys. The students’ progress and attitudes were monitored over four consecutive semesters. The first began with the design of the intervention and the following three consisted in the implementation. The strategy was focused on the development of course competencies through autonomous learning with ICT tools presented in the VLE. Findings indicate that the students who did the activities in the VLE showed an increase in performance scores in comparison with students who did not do them. The strategy used in this study, which enhanced perceived autonomy, was associated with a positive effect on their learning process. This research shows that a technology-enhanced course supported by ICT activities can both improve academic performance and foster autonomy in students. 相似文献
140.