全文获取类型
收费全文 | 86篇 |
免费 | 6篇 |
专业分类
92篇 |
出版年
2021年 | 3篇 |
2020年 | 1篇 |
2019年 | 3篇 |
2018年 | 5篇 |
2017年 | 2篇 |
2016年 | 2篇 |
2015年 | 2篇 |
2014年 | 2篇 |
2013年 | 10篇 |
2012年 | 4篇 |
2011年 | 2篇 |
2010年 | 6篇 |
2009年 | 2篇 |
2008年 | 3篇 |
2007年 | 4篇 |
2006年 | 6篇 |
2005年 | 6篇 |
2004年 | 1篇 |
2003年 | 1篇 |
2002年 | 1篇 |
2001年 | 1篇 |
2000年 | 2篇 |
1999年 | 3篇 |
1993年 | 1篇 |
1992年 | 3篇 |
1991年 | 1篇 |
1990年 | 1篇 |
1989年 | 2篇 |
1987年 | 1篇 |
1986年 | 4篇 |
1983年 | 1篇 |
1982年 | 3篇 |
1981年 | 1篇 |
1976年 | 1篇 |
1972年 | 1篇 |
排序方式: 共有92条查询结果,搜索用时 15 毫秒
11.
Eleftheria Polychronidou Ilias Kalamaras Andreas Agathangelidis Lesley-Ann Sutton Xiao-Jie Yan Vasilis Bikos Anna Vardi Konstantinos Mochament Nicholas Chiorazzi Chrysoula Belessi Richard Rosenquist Paolo Ghia Kostas Stamatopoulos Panayiotis Vlamos Anna Chailyan Nanna Overby Paolo Marcatili Anastasia Hatzidimitriou Dimitrios Tzovaras 《BMC bioinformatics》2018,19(14):414
12.
Daniella Schatz Guy Schleyer Marius R. Saltvedt Ruth-Anne Sandaa Ester Feldmesser Assaf Vardi 《The ISME journal》2021,15(12):3714
Extracellular vesicles are produced by organisms from all kingdoms and serve a myriad of functions, many of which involve cell-cell signaling, especially during stress conditions and host-pathogen interactions. In the marine environment, communication between microorganisms can shape trophic level interactions and population succession, yet we know very little about the involvement of vesicles in these processes. In a previous study, we showed that vesicles produced during viral infection by the ecologically important model alga Emiliania huxleyi, could act as a pro-viral signal, by expediting infection and enhancing the half-life of the virus in the extracellular milieu. Here, we expand our laboratory findings and show the effect of vesicles on natural populations of E. huxleyi in a mesocosm setting. We profile the small-RNA (sRNA) cargo of vesicles that were produced by E. huxleyi during bloom succession, and show that vesicles applied to natural assemblages expedite viral infection and prolong the half-life of this major mortality agent of E. huxleyi. We subsequently reveal that exposure of the natural assemblage to E. huxleyi-derived vesicles modulates not only host-virus dynamics, but also other components of the microbial food webs, thus emphasizing the importance of extracellular vesicles to microbial interactions in the marine environment.Subject terms: Virus-host interactions, Microbial ecology, Water microbiology 相似文献
13.
14.
Y Vardi T Meshulam N Obedeanu D Merzbach J D Sobel 《Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine (New York, N.Y.)》1983,172(4):449-456
To date, the study of bacterial adherence to uroepithelial cells has utilized considerable variation in methodology, resulting in highly divergent conclusions. In an attempt to standardize methodology, a modified method is described to more accurately measure the in vivo bacterial adherence to rat bladder uroepithelium utilizing Pseudomonas species labeled with 2-[3H]adenine. Two isolates of P. aeruginosa were selected for more intensive study; one showed consistently good adherence; the second strain always adhered poorly, thus providing a negative control. Maximum adherence was detected after 60 min of incubation. Neither of the two Pseudomonas isolates when examined by transmission electron microscopy showed evidence of pili formation. The morphological features of Pseudomonas adherence to bladder mucosa as studied by scanning electron microscopy are described. 相似文献
15.
16.
Vitamin E is a naturally occurring fat-soluble antioxidant which has been proposed as a treatment for both primary and secondary protection against cardiovascular (CV) events. Promising data from observational epidemiological studies associating higher vitamin E dietary intake with lower risk of CV events have not been validated in randomized controlled clinical trials assessing the effect of vitamin E on CV outcomes. While the pendulum of medical opinion has swung to suggest that high dose vitamin E supplements have no place in the treatment and prevention of CV disease, new data is emerging that allows identification of a specific target population for this treatment, namely patients with diabetes mellitus and the haptoglobin genotype 2-2. This review details the scientific basis and clinical evidence related to the effect of vitamin E on CV outcomes, and the importance of proper patient selection in gaining therapeutic benefit from this intervention. 相似文献
17.
18.
Protective and therapeutic effects of dexpanthenol on isoproterenol‐induced cardiac damage in rats 下载免费PDF全文
19.
R. M. Green A. Vardi E. Galun 《TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik》1986,72(2):170-177
Summary A physical plastome map was constructed for Citrus aurantium, and the plastomes of species and cultivars of Citrus and of two Citrus relatives were analysed by Southern blot-hybridisation of labelled total tobacco cpDNA to digests of total Citrus DNA. A resemblance was found between the plastomes of cultivars of C. limon (lemon), C. sinensis (orange), C. aurantium (sour orange), C. paradisii (grapefruit) and C. grandis (pomello). The plastomes of other Citrus types such as mandarin (C. reticulata) and citron (C. medico) differed from each other as well as from the plastomes of the aforementioned group. The plastomes of Poncirus trifoliata and Microcitrus sp. are distinct from each other as well as from the Citrus types. 相似文献
20.
Margarita Velcheva Zehava Faltin Aliza Vardi Uri Hanania Yuval Eshdat Oded Dgani Nachman Sahar Avihai Perl 《In vitro cellular & developmental biology. Plant》2010,46(6):477-484
A system for genetic transformation and subsequent plant regeneration via indirect organogenesis from callus was developed
for Aloe vera. Young seedlings served as primary explants. Callus cultures were established on Murashige and Skoog (1962) medium supplemented
with 3 mg l−1 benzylaminopurine and 2 mg l−1 indole acetic acid. A protocol was developed to switch from the differentiated stage, using in vitro shoots or young regenerated plants, back to the de-differentiated stage of the callus and vice versa. Long-term maintenance
of this callus paved the way for genetic manipulation of Aloe vera. Calluses were bombarded with a plasmid containing uidA and hpt genes, both under the control of the 35S promoter. Dithiothreitol and gibberellic acid were found to play a major role in
reducing tissue necrosis following bombardment. Transformed shoots were regenerated under stepwise selection in hygromycin-containing
liquid medium supplemented with different antioxidants. Amberlite XAD-4 resin was embedded into alginate beads and added to
the selection medium. Amberlite was best for adsorbing different phenolic compounds and blocking explant necrosis. Shoot initiation
occurred after transfer of the transformed cells to Murashige and Skoog medium supplemented with 2.0 mg l−1 thidiazuron and 0.1 mg l−1 indole butyric acid. Murashige and Skoog medium supplemented with 1 mg l−1 zeatin riboside promoted shoot elongation. Rooting and plant development were obtained on Murashige and Skoog basal medium
supplemented with 15 mg l−1 hygromycin lacking growth regulators. The transgenic nature of the regenerated plants was verified by histochemical GUS assay
and Southern blot hybridization. 相似文献