全文获取类型
收费全文 | 159篇 |
免费 | 4篇 |
出版年
2022年 | 1篇 |
2021年 | 4篇 |
2020年 | 1篇 |
2019年 | 5篇 |
2018年 | 3篇 |
2017年 | 4篇 |
2015年 | 3篇 |
2014年 | 8篇 |
2013年 | 3篇 |
2012年 | 7篇 |
2011年 | 4篇 |
2010年 | 4篇 |
2009年 | 3篇 |
2008年 | 1篇 |
2007年 | 7篇 |
2006年 | 3篇 |
2005年 | 5篇 |
2004年 | 6篇 |
2003年 | 9篇 |
2002年 | 7篇 |
2001年 | 2篇 |
2000年 | 14篇 |
1999年 | 3篇 |
1998年 | 2篇 |
1995年 | 1篇 |
1994年 | 2篇 |
1992年 | 3篇 |
1991年 | 3篇 |
1990年 | 2篇 |
1989年 | 3篇 |
1988年 | 3篇 |
1987年 | 4篇 |
1986年 | 1篇 |
1985年 | 1篇 |
1984年 | 1篇 |
1983年 | 2篇 |
1978年 | 2篇 |
1976年 | 3篇 |
1975年 | 2篇 |
1974年 | 2篇 |
1973年 | 4篇 |
1971年 | 1篇 |
1970年 | 5篇 |
1969年 | 5篇 |
1968年 | 1篇 |
1967年 | 2篇 |
1935年 | 1篇 |
排序方式: 共有163条查询结果,搜索用时 15 毫秒
131.
132.
133.
Recommendations on the preparation and use of a solid culture medium are given; age changes in the colonies of leptospires belonging to different serovars and serogroups have been studied in their dynamics; the absence of relationship between the form of the colonies, the serovar and serogroup of the cultures, their virulence, as well as the region, time and source of their isolation has been established, which makes it impossible to use these parameters for the differentiation of Leptospira strains belonging to different serovars on solid culture media. 相似文献
134.
In experiments on white mice the immunogenic potency of two variants of combined vaccines prepared from strains of opportunistic bacteria was compared with that of monovaccines used as the components of the combined vaccines. All the vaccines under study were found highly immunogenic. Decrease of monovaccine share in the combined vaccine did not reduce the immunogenic potency to any of the strains. An 8- to 16-fold increase in the level of specific antibodies in the colostric lactosera of cows immunized with combined vaccines was observed, and the survival rate of newborn calves increased 3- to 4-fold. 相似文献
135.
136.
S M Zhenodarova V P Kliagina E A Sedel'nikova O A Smolianinova I A Soboleva 《Bioorganicheskaia khimiia》1987,13(8):1037-1044
Behaviour of modified nucleosides, tRNA components, and their analogues has been studied in the internucleotide bond formation catalysed by ribonucleases of various substrate specificity, polynucleotide phosphorylases, and T4 RNA ligase and the results are summarised in this paper. Pseudouridine, dihydrouridine, ribothymidine, 5-methylcytidine, inosine, and 6-methyladenosine can participate in the reaction of internucleotide bond formation the presence of most ribonucleases used, viz. Pb2, Pcl2, Pb1, Pch1, C2, T1, pancreatic RNase. 3-Methylcytidine and 4-acetylcytidine form internucleotide bond (as phosphate acceptors) usually by means of guanyl-specific ribonucleases, whereas 1-methylandenosine is incorporated with ribonuclease Pel2. 7-Methylguanosine and 1-methylguynosine 2',3'-cyclophosphates can be used as phosphate donors in the presence of ribonuclease Pb2; in the similar enzymatic reaction 6-isopentenyladenosine is an uneffective acceptor. 相似文献
137.
G P Kononenko A A Burkin N A Soboleva E V Zotova 《Prikladnaia biokhimiia i mikrobiologiia》1999,35(4):457-462
Based on indirect solid-phase competitive enzyme immunoassay, a method for determination of T-2 toxin in grain was designed. Determination errors were measured on samples of contaminated grain. The method makes allows determination of the toxin levels ranging from 30 to 1000 ng/g. 相似文献
138.
139.
V. V. Sobolev A. D. Zolotarenko A. G. Soboleva M. E. Sautin S. A. Ilyina M. K. Sarkisova E. Z. Golukhova A. M. Elkin S. A. Bruskin R. M. Abdeev 《Russian Journal of Genetics》2010,46(1):93-98
Psoriatic and atherosclerotic plagues were examined using the real-time polymerase chain reaction. Expression of the FOSL1 gene proved to substantially increase in both psoriatic lesions of the skin and atherosclerotic lesions of vessels as compared
with nonlesion samples. 相似文献
140.