全文获取类型
| 收费全文 | 111篇 |
| 免费 | 1篇 |
专业分类
| 教育 | 67篇 |
| 科学研究 | 40篇 |
| 体育 | 1篇 |
| 信息传播 | 4篇 |
出版年
| 2022年 | 1篇 |
| 2019年 | 3篇 |
| 2018年 | 1篇 |
| 2017年 | 4篇 |
| 2016年 | 4篇 |
| 2015年 | 3篇 |
| 2014年 | 8篇 |
| 2013年 | 11篇 |
| 2012年 | 4篇 |
| 2011年 | 8篇 |
| 2010年 | 1篇 |
| 2009年 | 8篇 |
| 2008年 | 6篇 |
| 2007年 | 1篇 |
| 2006年 | 3篇 |
| 2005年 | 7篇 |
| 2004年 | 5篇 |
| 2003年 | 5篇 |
| 2002年 | 2篇 |
| 2001年 | 4篇 |
| 2000年 | 5篇 |
| 1999年 | 4篇 |
| 1998年 | 3篇 |
| 1996年 | 1篇 |
| 1985年 | 1篇 |
| 1984年 | 1篇 |
| 1980年 | 1篇 |
| 1977年 | 2篇 |
| 1976年 | 1篇 |
| 1974年 | 2篇 |
| 1973年 | 2篇 |
排序方式： 共有112条查询结果，搜索用时 15 毫秒
81.
82.
83.
Ramesh Srinivasan 《The Information Society》2006,22(5):355-365
Information and communication technology (ICT) development initiatives have begun to acknowledge the power and importance of cultural and community-focused belief systems. Yet the vast majority of such initiatives tend to preidentify developmental goals that communities hold. Paulo Freire's writings have influenced development initiatives by introducing the possibility of working with communities to orient projects. While these “participatory” initiatives have involved soliciting community feedback relative to a research project whose goals were formulated in the university or development institution, they do not go far enough to harness actual visions held by communities. It is important to conceptualize a model and methodology of engaging communities to develop and articulate their own goals of information access and ultimately, an indigenous approach toward cultural, political, and economic aspects of development. This approach holds promise to sustain communities within a return on the investment and efforts of the researcher or institution. This article closes by describing a current initiative in Southern India that reflects the described methodology. 相似文献
84.
85.
Ramesh Chandra Ritu Aneja Charu Rewal Rama Konduri Sujaka K. Dass Shefali Agarwal 《Indian journal of clinical biochemistry : IJCB》2000,15(2):155-160
In this communication, we show the modulatory potential of papaverine, an opium alkaloid and a well known vasodilator agent
on the ethanol-induced hepatic oxidative stress in male Wistar rats. Ethanol treatment (50% v/v) enhanced lipid peroxidation
significantly accompanied by a decline in the activities of glutathione peroxidase (G-Px), glutathione reductase (GR) and
depletion in levels of hepatic glutathione (GSH). Ethanol administration increased hepatic glutathione-s-transferases (GST).
Enhanced lipid peroxidation induced by ethanol was significantly reduced when papverine was coadministered (P<0.05). In addition,
the depleted levels of glutathione and inhibited activities of G-Px and GR recovered significantly (P<0.05) levelling off
to control values on co-exposure. Papaverine (200 mg/kg bw) effectively antagonised the ethanol-induced lipid peroxidation
and impaired glutathione levels and glutathione dependent enzyme systems. Our results suggest that papaverine is an effective
chemopreventive agent in the liver and may suppress the ethanol-induced hepatotoxicity. 相似文献
86.
Ramesh Chander 《Resonance》1999,4(7):24-41
Alfred Wegener, an astronomer by training and meteorologist by profession, visualised that there was once a single very large
landmass on the surface of the earth. Gradually it broke up into smaller fragments which drifted away to form the present
continents. In a few cases, the drifting fragments subsequently collided, coalesced and formed larger landmasses again. Wegener
could thus explain in a simple way (i) similarities in shapes of continental coast lines separated by wide oceans, (ii) similarities
in the rocks and fossils occurring on such coasts and in the fauna and flora inhabiting them, (iii) the formation of several
major mountain ranges of the world, and (iv) the evidence in rocks on past climates of the earth. 相似文献
87.
88.
Ramesh Sharma 《British journal of educational technology : journal of the Council for Educational Technology》2013,44(2):E68-E69
This is a highly useful illustrative step‐by‐step resource for teachers and administrators planning for or already teaching online. It offers great ideas, strategies, practical examples, online tools and design principles for all those associated with online teaching, whether they are beginners or experienced. I recommend you buy a copy of this book for your own use if its content is likely to be relevant to you. Ramesh Sharma 相似文献
89.
90.