全文获取类型
收费全文 | 169篇 |
免费 | 7篇 |
专业分类
化学 | 154篇 |
数学 | 11篇 |
物理学 | 11篇 |
出版年
2021年 | 1篇 |
2019年 | 1篇 |
2018年 | 1篇 |
2017年 | 1篇 |
2016年 | 4篇 |
2015年 | 4篇 |
2014年 | 7篇 |
2013年 | 6篇 |
2012年 | 11篇 |
2011年 | 9篇 |
2010年 | 15篇 |
2009年 | 5篇 |
2008年 | 11篇 |
2007年 | 7篇 |
2006年 | 9篇 |
2005年 | 12篇 |
2004年 | 11篇 |
2003年 | 13篇 |
2002年 | 12篇 |
2001年 | 2篇 |
2000年 | 2篇 |
1998年 | 2篇 |
1996年 | 3篇 |
1995年 | 2篇 |
1994年 | 3篇 |
1993年 | 3篇 |
1992年 | 1篇 |
1991年 | 1篇 |
1990年 | 1篇 |
1987年 | 1篇 |
1986年 | 1篇 |
1985年 | 4篇 |
1984年 | 4篇 |
1981年 | 3篇 |
1980年 | 1篇 |
1971年 | 1篇 |
1968年 | 1篇 |
排序方式: 共有176条查询结果,搜索用时 31 毫秒
101.
Isolation and characterisation of novel neutral and cationic Rh(I) complexes having only DMSO molecules as dative ligands give complexes showing S-, O- and bridging S,O-bidentate binding modes of DMSO. 相似文献
102.
Crottet D Meuli R Wicky S van der Klink JJ 《Journal of magnetic resonance (San Diego, Calif. : 1997)》2002,159(2):219-225
Several forms of catheter-mounted "inside-out" probes for endovascular imaging have been proposed in the literature. The "opposed-solenoid" structure has been studied in relatively little detail, although it has some potential advantages over the others. Using a small water sample as a voxel, we measure point by point the spatial variation of the sensitivity and the rf field strength of such a probe, and connect the two by the reciprocity relation. By itself, the corresponding plot provides a nice example of the reciprocity relation at work; and for the characterization of the probe it gives a check on data quality. The results can be understood from simple considerations and agree well with the sensitivity observed in the image of a phantom. 相似文献
103.
Werner?SeebacherEmail author Ferdinand?Belaj Robert?Saf Reto?Brun Robert?Weis 《Monatshefte für Chemie / Chemical Monthly》2003,134(12):1623-1628
Summary. New 1,3-thiazoles and 1,3-thiazines are prepared from 1-thiocarbamoyl-pyrazoles. The structures of the title compounds are established by a single crystal structure analysis. Furthermore, antiprotozoal activities of one compound have been determined. 相似文献
104.
Proteome‐Wide Profiling of Targets of Cysteine reactive Small Molecules by Using Ethynyl Benziodoxolone Reagents
下载免费PDF全文
![点击此处可从《Angewandte Chemie (International ed. in English)》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Daniel Abegg Dr. Reto Frei Luca Cerato Dr. Durga Prasad Hari Chao Wang Prof. Dr. Jerome Waser Prof. Dr. Alexander Adibekian 《Angewandte Chemie (International ed. in English)》2015,54(37):10852-10857
In this study, we present a highly efficient method for proteomic profiling of cysteine residues in complex proteomes and in living cells. Our method is based on alkynylation of cysteines in complex proteomes using a “clickable” alkynyl benziodoxolone bearing an azide group. This reaction proceeds fast, under mild physiological conditions, and with a very high degree of chemoselectivity. The formed azide‐capped alkynyl–cysteine adducts are readily detectable by LC‐MS/MS, and can be further functionalized with TAMRA or biotin alkyne via CuAAC. We demonstrate the utility of alkynyl benziodoxolones for chemical proteomics applications by identifying the proteomic targets of curcumin, a diarylheptanoid natural product that was and still is part of multiple human clinical trials as anticancer agent. Our results demonstrate that curcumin covalently modifies several key players of cellular signaling and metabolism, most notably the enzyme casein kinase I gamma. We anticipate that this new method for cysteine profiling will find broad application in chemical proteomics and drug discovery. 相似文献
105.
106.
107.
108.
Ehmke V Quinsaat JE Rivera-Fuentes P Heindl C Freymond C Rottmann M Brun R Schirmeister T Diederich F 《Organic & biomolecular chemistry》2012,10(30):5764-5768
A series of aryl nitrile-based ligands were prepared to investigate the effect of their electrophilicity on the affinity against the cysteine proteases rhodesain and human cathepsin L. Density functional theory calculations provided relative reactivities of the nitriles, enabling prediction of their biological affinity and cytotoxicity and a clear structure-activity relationship. 相似文献
109.
110.