全文获取类型
收费全文 | 75篇 |
免费 | 5篇 |
出版年
2017年 | 1篇 |
2016年 | 3篇 |
2015年 | 3篇 |
2014年 | 2篇 |
2013年 | 4篇 |
2012年 | 4篇 |
2011年 | 1篇 |
2010年 | 3篇 |
2009年 | 1篇 |
2008年 | 9篇 |
2007年 | 4篇 |
2005年 | 5篇 |
2004年 | 1篇 |
2003年 | 2篇 |
2002年 | 1篇 |
2001年 | 1篇 |
2000年 | 1篇 |
1999年 | 2篇 |
1997年 | 1篇 |
1995年 | 1篇 |
1992年 | 1篇 |
1991年 | 1篇 |
1990年 | 1篇 |
1989年 | 1篇 |
1984年 | 1篇 |
1982年 | 2篇 |
1979年 | 1篇 |
1976年 | 1篇 |
1975年 | 2篇 |
1974年 | 1篇 |
1973年 | 2篇 |
1972年 | 3篇 |
1971年 | 1篇 |
1970年 | 3篇 |
1969年 | 1篇 |
1968年 | 3篇 |
1963年 | 1篇 |
1961年 | 1篇 |
1956年 | 1篇 |
1936年 | 1篇 |
1931年 | 1篇 |
排序方式: 共有80条查询结果,搜索用时 15 毫秒
71.
72.
PROTEOLYTIC ACTIVITY AND BASIC PROTEIN LOSS IN AND AROUND MULTIPLE SCLEROSIS PLAQUES: COMBINED BIOCHEMICAL AND EIISTOCHEMICAL OBSERVATIONS 总被引:3,自引:0,他引:3
E. R. Einstein J. Csejtey K. B. Dalal C. W. M. Adams O. B. Bayliss J. F. Hallpike 《Journal of neurochemistry》1972,19(3):653-662
Abstract— This combined histochemical and biochemical study has shown that acid proteinase activity (PH 3.5) is increased around histologically-defined active plaques of multiple sclerosis (MS). Biochemical estimation showed that the enzyme is more active in most samples of 'normal' white matter in MS than in controls. A gradient of enzyme activity was observed: control white matter-white matter distant from plaqueclose white matter-edgsplaque. Both electrophoretic and histochemical techniques revealed a reduction or absence of basic (encephalitogenic) protein in the plaques. Electrophoresis showed a diminution of encephalitogenic protein outside some plaques. Phospholipids that remain on the base-line of thin-layer chromatoplates were shown to be predominantly phosphoinositides combined with encephalitogenic protein 相似文献
73.
74.
75.
The ultimate goal of the Human Genome project is to extract the biologically relevant information recorded in the estimated 100,000 genes encoded by the 3 x 10(9) bases of the human genome. This necessitates development of reliable computer-based methods capable of analysing and correctly identifying genes in the vast amounts of DNA-sequence data generated. Such tools may save time and labour by simplifying, for example, screening of cDNA libraries. They may also facilitate the localization of human disease genes by identifying candidate genes in promising regions of anonymous DNA sequence. 相似文献
76.
77.
78.
79.
80.
The use of tannic acid to preserve and promote the staining of protein constituents of the extracellular fluid is described. Its usefulness for delineating the extracellular compartment and detecting changes in capillary permeability is illustrated in experiments on the testis. 相似文献