全文获取类型
收费全文 | 149篇 |
免费 | 6篇 |
专业分类
155篇 |
出版年
2022年 | 1篇 |
2020年 | 1篇 |
2019年 | 1篇 |
2018年 | 1篇 |
2017年 | 2篇 |
2016年 | 1篇 |
2015年 | 8篇 |
2014年 | 8篇 |
2013年 | 7篇 |
2012年 | 14篇 |
2011年 | 13篇 |
2010年 | 8篇 |
2009年 | 8篇 |
2008年 | 4篇 |
2007年 | 4篇 |
2006年 | 7篇 |
2005年 | 5篇 |
2004年 | 2篇 |
2003年 | 3篇 |
2002年 | 6篇 |
2001年 | 8篇 |
2000年 | 2篇 |
1999年 | 4篇 |
1998年 | 5篇 |
1997年 | 2篇 |
1996年 | 4篇 |
1995年 | 4篇 |
1992年 | 2篇 |
1991年 | 1篇 |
1990年 | 2篇 |
1989年 | 2篇 |
1988年 | 1篇 |
1987年 | 2篇 |
1985年 | 1篇 |
1984年 | 1篇 |
1983年 | 2篇 |
1981年 | 2篇 |
1980年 | 2篇 |
1979年 | 1篇 |
1978年 | 1篇 |
1977年 | 1篇 |
1975年 | 1篇 |
排序方式: 共有155条查询结果,搜索用时 15 毫秒
151.
Dmitry Shcherbo Ekaterina A Souslova Joachim Goedhart Tatyana V Chepurnykh Anna Gaintzeva Irina I Shemiakina Theodorus WJ Gadella Sergey Lukyanov Dmitriy M Chudakov 《BMC biotechnology》2009,9(1):24-6
Background
In spite of a great number of monomeric fluorescent proteins developed in the recent years, the reported fluorescent protein-based FRET pairs are still characterized by a number of disadvantageous features, complicating their use as reporters in cell biology and for high-throughput cell-based screenings. 相似文献152.
M J de Groot P H Willemsen W A Coumans M van Bilsen G J van der Vusse 《Biochimica et biophysica acta》1989,1006(1):111-115
The addition of lactate (5.6 mM) to a perfusion medium containing glucose (11 mM) stimulated the turnover of the cardiac triacylglycerol pool throughout the perfusion period as indicated by increased glycerol release in association with maintained levels of triacylglycerols. Attenuation of feedback inhibition of triacylglycerol lipase by fatty acids as a possible cause of the elevated triacylglycerol turnover rate should be ruled out, since tissue fatty acid levels were 3-times higher in glucose plus lactate perfused hearts than in hearts perfused with glucose as the sole substrate. The present findings are in favor of the notion that lactate enhances triacylglycerol turnover through increased glycerol 3-phosphate levels. 相似文献
153.
Background
Mixed culture enrichments have been used frequently for biohydrogen production from different feedstock. In spite of the several advantages offered by those cultures, they suffer poor H2 yield. Constructing defined co-cultures of known H2 producers may offer a better performance than mixed-population enrichments, while overcoming some of the limitations of pure cultures based on synergies among the microorganisms involved. 相似文献154.
155.
A GC-ECD titration of IAA in normal auxin (2,4-D)-requiring and auxin-independent (habituated) sugarbeet callus revealed an equal amount in both tissues. A comparison of the content and pattern (through starch gel electrophoresis) of soluble, membrane and wall peroxidases indicated that normal tissues contained a higher level of isoperoxidases. Normal tissues also were found to contain higher levels of peroxidase inhibitors and auxin protectors. The hypothesized peroxidase-mediated higher rate of auxin destruction in normal sugarbeet callus is supposed to be counterbalanced by the 2,4-D-controlled auxin protectors. 相似文献