全文获取类型
收费全文 | 1859篇 |
免费 | 17篇 |
国内免费 | 11篇 |
专业分类
教育 | 1174篇 |
科学研究 | 123篇 |
各国文化 | 9篇 |
体育 | 417篇 |
综合类 | 2篇 |
文化理论 | 31篇 |
信息传播 | 131篇 |
出版年
2023年 | 14篇 |
2022年 | 44篇 |
2021年 | 53篇 |
2020年 | 53篇 |
2019年 | 83篇 |
2018年 | 109篇 |
2017年 | 103篇 |
2016年 | 105篇 |
2015年 | 45篇 |
2014年 | 73篇 |
2013年 | 217篇 |
2012年 | 82篇 |
2011年 | 75篇 |
2010年 | 78篇 |
2009年 | 62篇 |
2008年 | 65篇 |
2007年 | 57篇 |
2006年 | 69篇 |
2005年 | 54篇 |
2004年 | 42篇 |
2003年 | 35篇 |
2002年 | 39篇 |
2001年 | 35篇 |
2000年 | 21篇 |
1999年 | 23篇 |
1998年 | 25篇 |
1997年 | 18篇 |
1996年 | 12篇 |
1995年 | 10篇 |
1994年 | 10篇 |
1993年 | 10篇 |
1992年 | 11篇 |
1991年 | 8篇 |
1990年 | 15篇 |
1989年 | 8篇 |
1988年 | 9篇 |
1987年 | 5篇 |
1986年 | 8篇 |
1985年 | 6篇 |
1984年 | 11篇 |
1983年 | 5篇 |
1982年 | 4篇 |
1981年 | 5篇 |
1980年 | 5篇 |
1979年 | 9篇 |
1978年 | 5篇 |
1977年 | 4篇 |
1975年 | 11篇 |
1974年 | 6篇 |
1968年 | 3篇 |
排序方式: 共有1887条查询结果,搜索用时 15 毫秒
11.
There is a crisis of valuation practices in the current academic life sciences, triggered by unsustainable growth and “hyper-competition.” Quantitative metrics in evaluating researchers are seen as replacing deeper considerations of the quality and novelty of work, as well as substantive care for the societal implications of research. Junior researchers are frequently mentioned as those most strongly affected by these dynamics. However, their own perceptions of these issues are much less frequently considered. This paper aims at contributing to a better understanding of the interplay between how research is valued and how young researchers learn to live, work and produce knowledge within academia. We thus analyze how PhD students and postdocs in the Austrian life sciences ascribe worth to people, objects and practices as they talk about their own present and future lives in research. We draw on literature from the field of valuation studies and its interest in how actors refer to different forms of valuation to account for their actions. We explore how young researchers are socialized into different valuation practices in different stages of their growing into science. Introducing the concept of “regimes of valuation” we show that PhD students relate to a wider evaluative repertoire while postdocs base their decisions on one dominant regime of valuing research. In conclusion, we discuss the implications of these findings for the epistemic and social development of the life sciences, and for other scientific fields. 相似文献
12.
13.
Hannele Forsman Arto Gråstén Minna Blomqvist Keith Davids Jarmo Liukkonen Niilo Konttinen 《Journal of sports sciences》2016,34(14):1311-1318
ABSTRACTThe objective of this 1-year, longitudinal study was to examine the development of perceived competence, tactical skills, motivation, technical skills, and speed and agility characteristics of young Finnish soccer players. We also examined associations between latent growth models of perceived competence and other recorded variables. Participants were 288 competitive male soccer players ranging from 12 to 14 years (12.7 ± 0.6) from 16 soccer clubs. Players completed the self-assessments of perceived competence, tactical skills, and motivation, and participated in technical, and speed and agility tests. Results of this study showed that players’ levels of perceived competence, tactical skills, motivation, technical skills, and speed and agility characteristics remained relatively high and stable across the period of 1 year. Positive relationships were found between these levels and changes in perceived competence and motivation, and levels of perceived competence and speed and agility characteristics. Together these results illustrate the multi-dimensional nature of talent development processes in soccer. Moreover, it seems crucial in coaching to support the development of perceived competence and motivation in young soccer players and that it might be even more important in later maturing players. 相似文献
14.
The main purpose of this article is to advance an alternative perspective on the relationship between intrinsic and extrinsic motivation, and in particular to examine critically the assertion that these processes are antagonistic such that the will to learn for its own sake is inhibited by the presence of extrinsic, tangible rewards and incentives such as school grades. The presumption of an antagonistic relationship largely depends on the theoretical perspective adopted. An alternative interpretation based on need achievement theory leads to distinctly different conclusions. Exploring this new perspective allows one to identify both the conditions under which intrinsic motives may coexist with extrinsic motives as well as to consider some of the means by which intrinsic motives and caring about learning can be stimulated in their own right in school settings. 相似文献
15.
16.
Research in Science Education - The purpose of this research is to investigate the effect of using argumentation and problem-based learning approaches on the development of environmentally... 相似文献
17.
Turşucu Süleyman Spandaw Jeroen de Vries Marc J. 《Research in Science Education》2020,50(5):2131-2157
Research in Science Education - Students in upper secondary education encounter difficulties in applying mathematics in physics. To improve our understanding of these difficulties, we examined... 相似文献
18.
Tertiary Education and Management - In this article, we will argue that students played an important role at several crucial junctures of modern Czech history, which secured them a central position... 相似文献
19.
20.
Katharina Müller-Roselius 《Zeitschrift für Erziehungswissenschaft》2011,14(4):683-689