全文获取类型
收费全文 | 8496篇 |
免费 | 143篇 |
国内免费 | 7篇 |
专业分类
教育 | 6236篇 |
科学研究 | 508篇 |
各国文化 | 167篇 |
体育 | 695篇 |
综合类 | 4篇 |
文化理论 | 128篇 |
信息传播 | 908篇 |
出版年
2022年 | 51篇 |
2021年 | 78篇 |
2020年 | 151篇 |
2019年 | 212篇 |
2018年 | 288篇 |
2017年 | 309篇 |
2016年 | 294篇 |
2015年 | 222篇 |
2014年 | 243篇 |
2013年 | 1862篇 |
2012年 | 229篇 |
2011年 | 230篇 |
2010年 | 212篇 |
2009年 | 182篇 |
2008年 | 278篇 |
2007年 | 212篇 |
2006年 | 210篇 |
2005年 | 196篇 |
2004年 | 151篇 |
2003年 | 183篇 |
2002年 | 165篇 |
2001年 | 135篇 |
2000年 | 118篇 |
1999年 | 113篇 |
1998年 | 107篇 |
1997年 | 109篇 |
1996年 | 117篇 |
1995年 | 124篇 |
1994年 | 118篇 |
1993年 | 95篇 |
1992年 | 114篇 |
1991年 | 109篇 |
1990年 | 104篇 |
1989年 | 94篇 |
1988年 | 84篇 |
1987年 | 71篇 |
1986年 | 65篇 |
1985年 | 73篇 |
1984年 | 60篇 |
1983年 | 76篇 |
1982年 | 76篇 |
1981年 | 80篇 |
1980年 | 84篇 |
1979年 | 74篇 |
1978年 | 55篇 |
1977年 | 45篇 |
1976年 | 52篇 |
1975年 | 44篇 |
1974年 | 40篇 |
1971年 | 31篇 |
排序方式: 共有8646条查询结果,搜索用时 15 毫秒
891.
892.
893.
894.
895.
896.
Edy H. M. Shahali Lilia Halim David F. Treagust Mihye Won A. L. Chandrasegaran 《Research in Science Education》2017,47(2):257-281
This study investigated the understanding of science process skills (SPS) of 329 science teachers from 52 primary schools selected by random sampling. The understanding of SPS was measured in terms of conceptual and operational aspects of SPS using an instrument called the Science Process Skills Questionnaire (SPSQ) with a Cronbach’s alpha reliability of 0.88. The findings showed that the teachers’ conceptual understanding of SPS was much weaker than their practical application of SPS. The teachers’ understanding of SPS differed by their teaching qualifications but not so much by their teaching experience. Emphasis needs to be given to both conceptual and operational understanding of SPS during pre-service and in-service teacher education to enable science teachers to use the skills and implement inquiry-based lessons in schools. 相似文献
897.
898.
The peak-time procedure was used with pigeons to explore assumptions of two models of time perception: scalar expectancy theory (SET) and behavioral theory of timing (BeT). Conditions 1A and 1B varied fixed-interval duration to change rate of reinforcement. Condition 2 varied hopper duration in order to manipulate arousal level. Condition 3 held constant the interval to be timed (fixed-interval duration) but varied rate of reinforcement by interspersing trials in which only the chamber light came on for a duration equal to the fixed interval. Results from Conditions 1A, 1B, and 3 show that the speed of the pacemaker (1/τ) was directly proportional to the rate of reinforcement, thus supporting BeT. Manipulations of the hopper duration had no effect on the timing process. 相似文献
899.
David Rodríguez-Gómez Julio Meneses Joaquín Gairín Mònica Feixas José Luís Muñoz 《高等教育研究与发展》2016,35(4):815-828
Studies of student re-enrolment patterns in higher education constitute, along with traditional studies of persistence and dropout, a key element for improving the quality of higher education institutions. However, these studies tend to be limited as they are centred on a single institution, due to the lack of national-scale data sets for monitoring students between different institutions. Using a longitudinal population-based data set provided by the Catalan University Assurance Agency (AQU), which includes information records on 21,473 undergraduate students, this paper aims to develop and test an exploratory model of student re-enrolment, specifically in the Catalan public university system. We are not only interested in student re-enrolment, but also in whether they do so during the first year after dropout or in the same area of knowledge. Results from logistic regression analysis revealed that although most students return to the university system in the first year after dropout, many of these change to a different area of knowledge, which is clear evidence of dysfunctional and inefficient guidance systems and university entrance. Findings provide a more accurate and complete picture of student re-enrolment behaviour and suggest the need to develop targeted policies to improve the efficiency and effectiveness of our university systems. 相似文献
900.
ABSTRACTWe explore the reflections of a lecturer using Action Learning (AL) meetings for the dissertation module on a one-year Master’s programme with a predominantly international student cohort. We focus on two concerns: to what extent does AL mitigate against the negative experiences of cross-cultural adaptation? And can we surface and share the learning that occurs when (international) scholars become practitioners and practitioners become (international) scholars? In the AL groups, many students seem more at ease with themselves, others and content in AL meetings than in other sessions. We scrutinised AL and our AL meetings to explore what makes it different and perhaps a better learning experience for the international student. This paper emerged following discussions with David, an e-learning and pedagogic specialist. Before continuing, note that there are two terms discussed in the literature: ‘cross-cultural adjustment’ and ‘cross cultural adaptation’. ‘Adjustment’ refers to minor changes to cope with when facing a new situation, ‘adaptation’ to larger scale changes [Haslberger, Arno, and Chris Brewster. 2007. “Domains of Expatriate Adjustment with Special Emphasis on Work.” Presented at the Cadiz University’s VI International Workshop on Human Resource Management, Jerez, Spain]. We suggest that AL be used more often and earlier with international students. 相似文献