全文获取类型
收费全文 | 394篇 |
免费 | 11篇 |
出版年
2022年 | 1篇 |
2021年 | 5篇 |
2020年 | 8篇 |
2019年 | 8篇 |
2018年 | 13篇 |
2017年 | 17篇 |
2016年 | 13篇 |
2015年 | 11篇 |
2014年 | 6篇 |
2013年 | 12篇 |
2012年 | 34篇 |
2011年 | 33篇 |
2010年 | 18篇 |
2009年 | 20篇 |
2008年 | 26篇 |
2007年 | 23篇 |
2006年 | 23篇 |
2005年 | 23篇 |
2004年 | 14篇 |
2003年 | 8篇 |
2002年 | 16篇 |
2001年 | 14篇 |
2000年 | 5篇 |
1999年 | 7篇 |
1998年 | 4篇 |
1997年 | 1篇 |
1996年 | 2篇 |
1995年 | 1篇 |
1994年 | 1篇 |
1992年 | 7篇 |
1991年 | 5篇 |
1990年 | 4篇 |
1987年 | 2篇 |
1983年 | 1篇 |
1978年 | 2篇 |
1976年 | 2篇 |
1974年 | 1篇 |
1973年 | 4篇 |
1971年 | 2篇 |
1970年 | 1篇 |
1968年 | 1篇 |
1967年 | 4篇 |
1966年 | 1篇 |
1965年 | 1篇 |
排序方式: 共有405条查询结果,搜索用时 140 毫秒
1.
2.
Background
Micro-biological research relies on the use of model organisms that act as representatives of their species or subspecies, these are frequently well-characterized laboratory strains. However, it has often become apparent that the model strain initially chosen does not represent important features of the species. For micro-organisms, the diversity of their genomes is such that even the best possible choice of initial strain for sequencing may not assure that the genome obtained adequately represents the species. To acquire information about a species' genome as efficiently as possible, we require a method to choose strains for analysis on the basis of how well they represent the species. 相似文献3.
The temporal correlates of evoked potentials from the visual and motor cortices in affective states]
K I Dudaeva L M Puchinskaia V N Krasnov 《Zhurnal vysshe? nervno? deiatelnosti imeni I P Pavlova》1991,41(4):671-679
Peak latencies (PLs) of seven isopolar components of the evoked potentials (EPs) of the occipital and central areas in patients with different extent of depressions with the predominance of alarm or anguish affects were compared with healthy ones. In alarm affect the differences in PLs of EP components dominant in the occipital areas while in anguish affect they prevail in the central cortical zones. 相似文献
4.
5.
6.
Abramov I. S. Korneva Yu. S. Shisterova O. A. Ikonnikova A. Yu. Emelyanova M. A. Lisitsa T. S. Krasnov G. S. Nasedkina T. V. 《Molecular Biology》2021,55(3):354-362
Molecular Biology - Molecular profiling of tumors may provide promising options for personalized treatment. We have examined the spectrum of germline and somatic mutations in 23 breast cancers (BC)... 相似文献
7.
Kandarakov O. F. Demin A. M. Popenko V. I. Leonova O. G. Kopantseva E. E. Krasnov V. P. Belyavsky A. V. 《Molecular Biology》2020,54(1):99-110
Molecular Biology - The factors that affect the labeling of NIH 3T3 murine fibroblasts with Fe3O4-based magnetic nanoparticles (MNPs) were studied using MNPs produced by the gas condensation and... 相似文献
8.
Ghukasyan L. G. Krasnov G. S. Muravenko O. V. Ikonnikova A. Y. Yurasov R. A. Baidun L. V. Ibragimova S. Z. Nasedkina T. V. 《Molecular Biology》2020,54(3):341-348
Molecular Biology - Certain subtypes of acute myeloid leukemia occur as a result of the cooperation of several events these are, the formation of fusion genes as a result of chromosomal... 相似文献
9.
Christian Kiffner Michal Stanko Serge Morand Irina S. Khokhlova Georgy I. Shenbrot Anne Laudisoit Herwig Leirs Hadas Hawlena Boris R. Krasnov 《Oecologia》2013,173(3):1009-1022
The distribution of parasites among individual hosts is characterised by high variability that is believed to be a result of variations in host traits. To find general patterns of host traits affecting parasite abundance, we studied flea infestation of nine rodent species from three different biomes (temperate zone of central Europe, desert of Middle East and tropics of East Africa). We tested for independent and interactive effects of host sex and body mass on the number of fleas harboured by an individual host while accounting for spatial clustering of host and parasite sampling and temporal variation. We found no consistent patterns of the effect of host sex and body mass on flea abundance either among species within a biome or among biomes. We found evidence for sex-biased flea infestation in just five host species (Apodemus agrarius, Myodes glareolus, Microtus arvalis, Gerbillus andersoni, Mastomys natalensis). In six rodent species, we found an effect of body mass on flea abundance (all species mentioned above and Meriones crassus). This effect was positive in five species and negative in one species (Microtus arvalis). In M. glareolus, G. andersoni, M. natalensis, and M. arvalis, the relationship between body mass and flea abundance was mediated by host sex. This was manifested in steeper change in flea abundance with increasing body mass in male than female individuals (M. glareolus, G. andersoni, M. natalensis), whereas the opposite pattern was found in M. arvalis. Our findings suggest that sex and body mass are common determinants of parasite infestation in mammalian hosts, but neither of them follows universal rules. This implies that the effect of host individual characteristics on mechanisms responsible for flea acquisition may be manifested differently in different host species. 相似文献
10.
N. V. Koroban A. V. Kudryavtseva G. S. Krasnov A. F. Sadritdinova M. S. Fedorova A. V. Snezhkina N. L. Bolsheva O. V. Muravenko A. A. Dmitriev N. V. Melnikova 《Molecular Biology》2016,50(3):337-343
Regulation of gene expression via microRNA is the key mechanism of response to biotic and abiotic stresses in plants. There are a lot of experimental data on the biological function of microRNAs in response to different stresses in various plant species. This review contains up-to-date information on molecular mechanisms of microRNA action in plants in response to abiotic stresses, including drought, salinity, mineral nutrient deficiency or imbalance. 相似文献