收费全文 | 1562篇 |
免费 | 29篇 |
国内免费 | 2篇 |
教育 | 1202篇 |
科学研究 | 99篇 |
各国文化 | 25篇 |
体育 | 102篇 |
综合类 | 3篇 |
文化理论 | 20篇 |
信息传播 | 142篇 |
2023年 | 10篇 |
2022年 | 12篇 |
2021年 | 24篇 |
2020年 | 38篇 |
2019年 | 46篇 |
2018年 | 74篇 |
2017年 | 75篇 |
2016年 | 73篇 |
2015年 | 39篇 |
2014年 | 60篇 |
2013年 | 347篇 |
2012年 | 63篇 |
2011年 | 57篇 |
2010年 | 32篇 |
2009年 | 41篇 |
2008年 | 45篇 |
2007年 | 39篇 |
2006年 | 46篇 |
2005年 | 41篇 |
2004年 | 43篇 |
2003年 | 23篇 |
2002年 | 29篇 |
2001年 | 22篇 |
2000年 | 26篇 |
1999年 | 20篇 |
1998年 | 24篇 |
1997年 | 13篇 |
1996年 | 15篇 |
1995年 | 15篇 |
1994年 | 12篇 |
1993年 | 7篇 |
1992年 | 6篇 |
1991年 | 21篇 |
1990年 | 15篇 |
1989年 | 10篇 |
1988年 | 11篇 |
1987年 | 8篇 |
1986年 | 6篇 |
1985年 | 15篇 |
1984年 | 10篇 |
1983年 | 6篇 |
1982年 | 7篇 |
1981年 | 7篇 |
1978年 | 4篇 |
1977年 | 4篇 |
1976年 | 5篇 |
1974年 | 4篇 |
1972年 | 7篇 |
1969年 | 4篇 |
1964年 | 7篇 |
Background
While open-cohort blended education programmes allow for accessible and flexible study trajectories, they may present social challenges to learners. Social presence is a possible a way of enhancing adult learners’ success. It can lead to an increased perception of community, which may result in lower rates of dropping out. 相似文献Purpose: The current study has two goals. (1) Applying the DAST at a university in South Africa, the study will add to the existing research literature through its Southern African context. (2) The study will also look more closely at the link between (stereotypical) images of scientists and science-related career choices.
Sample: The DAST was applied to first-year students (n = 445) across different faculties at a South African university. If the assumption that young people’s perceptions of scientists influence their career choice is correct, one would expect differences in the drawings made by students who have opted for different fields of study.
Design and methods: The DAST was administered during orientation week of the first-year students in January 2017. Students were provided with a prepared blank sheet of paper and asked to draw a scientist and to fill in further information on the back of the paper. A content analysis applying the DAST checklist was used to analyse the images.
Results: The findings show that South African students use about four stereotypical indicators when drawing a scientist, and social science students drew stereotypical attributes more frequently when compared to students from other faculties. A typical scientist – as depicted in this study – is a man of uncertain age, who wears eyeglasses and a lab coat, and is surrounded by laboratory equipment.
Conclusions: Findings are largely in line with the international research literature. To challenge gender stereotypes, more contact between students and female role models might be essential. If (stereotypical) images really affect science-related career choices deserves further attention in future research studies. 相似文献
There is an ongoing debate both in the United States and Europe about the need to develop a broader view of scholarship and the different activities connected with it, including ‘service to the community’. This empirical study reveals that researchers who are engaged in collaboration with small and medium enterprises (SMEs) encounter many hindrances within the academic structure and obstacles due cultural differences that needs to be overcome. But it is also evident that they are creative and learn different strategies in accomplishing their goals and they also bring back useful experiences and knowledge from their cooperation into their research and teaching within the academic organization. We suggest that attention should be paid to the broader and more elaborate view of collaborative knowledge production that we present in the article if university structures are to provide better support for their academic staff to interact profitably with the community, and thereby create a ‘win-win situation’ for everyone involved.
相似文献