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Search Results: 1 - 10 of 34255 matches for " Yuanyang Zhou "
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$K$-stable splendid Rickard complexes
Yuanyang Zhou
Mathematics , 2014,
Abstract: In this paper, Brou\'e's conjecture is reduced to simple groups, with an additional stability condition.
A remark on Rickard complexes
Yuanyang Zhou
Mathematics , 2013,
Abstract: In this paper, we characterize a Rickard complex, which induces a Rickard equivalence between the block algebras of a block $b$ and its Brauer correspondent and whose vertices have the same order as defect groups of the block $b$. The homology of such a Rickard complex vanishes at all degree but degree $q$, and the homology at degree $q$ induces a basic Morita equivalence between the block algebras in the sense of Puig.
Extensions of trivial inertial blocks
Yuanyang Zhou
Mathematics , 2013,
Abstract: A false application of Proposition 4.10 causes a mistake in the proof of Corollary 4.11
On blocks with trivial source simple modules
Lluis Puig,Yuanyang Zhou
Mathematics , 2010,
Abstract: Motivated by an observation in "Vertices, sources and Green correspondents of the simple modules for the large Mathieu groups", J. of Algebra 322, we determine the source algebra, and therefore all the structure, of the blocks without essential Brauer pairs where the simple modules of all the Brauer corespondents have trivial sources.
Finite simple groups with some abelian Sylow subgroups
Rulin Shen,Yuanyang Zhou
Mathematics , 2015,
Abstract: In this paper, we classify the finite simple groups with an abelian Sylow subgroup.
Glauberman correspondents and extensions of nilpotent block algebras
Lluis Puig,Yuanyang Zhou
Mathematics , 2012, DOI: 10.1112/jlms/jdr069
Abstract: The main purpose of this paper is to prove that the extensions of a nilpotent block algebra and its Glauberman correspondent block algebra are Morita equivalent under an additional group-theoretic condition. In particular, Harris and Linckelman's theorem and Koshitani and Michler's theorem are covered. The ingredient to carry out our purpose is the two main results in K\"ulshammer and Puig's work "Extensions of nilpotent blocks"; we actually revisited them, giving completely new proofs of both and slightly improving the second one.
Comparative analysis of the three-dimensional structure of Periplaneta fuliginosa densovirus
Li Li,Donghua Chen,Zhenghong Zhou,Jiamin Zhang,Yuanyang Hu
Chinese Science Bulletin , 2003, DOI: 10.1007/BF03183298
Abstract: The three-dimensional structure of Periplaneta fuliginosa densovirus (pfDNV) is determined at 2.3 nm resolution using the techniques of cryo-electron microscopy and image reconstruction. The pfDNV contains five structural proteins and 60 protein subunits arranged on a T = 1 icosahedral shell with a relatively smooth surface. Its reconstruction reveals its distinct capsid structure from those observed in CPV and GmDNV. As in GmDNV, spike-like protrusions are not present in pfDNV at the threefold axes; while two small thorn-like protrusions are identified there. However, different from CPV and GmDNV, cylindrical channels along the fivefold axes are closed in pfDNV; while a small thorn-like protrusions, which have not been reported in other parvovirus, are observed there in pfDNV although their function is yet to be investigated. The pfDNV has dimple-like depressions at the icosahedral twofold axes; but has no canyon-like regions encircling the fivefold axes. The icosahedrally well-ordered nucleic acid has also been observed in pfDNV, suggesting that the protein and nucleic acid probably form closed interaction.
Comparative analysis of the three-dimensional structure of Periplaneta fuliginosa densovirus
LI Li,Chen Donghua,ZHOU Zhenghong,ZHANG Jiamin,HU Yuanyang,
LILi
,CHENDonghua

科学通报(英文版) , 2003,
Abstract: The three-dimensional structure of Periplaneta fuliginosa densovirus (pfDNV) is determined at 2.3 nm reso-lution using the techniques of cryo-electron microscopy and image reconstruction. The pfDNV contains five structural proteins and 60 protein subunits arranged on a T = 1 icosa-hedral shell with a relatively smooth surface. Its recon-struction reveals its distinct capsid structure from those ob-served in CPV and GmDNV. As in GmDNV, spike-like protrusions are not present in pfDNV at the threefold axes; while two small thorn-like protrusions are identified there. However, different from CPV and GmDNV, cylindrical channels along the fivefold axes are closed in pfDNV; while a small thorn-like protrusions, which have not been reported in other parvovirus, are observed there in pfDNV although their function is yet to be investigated. The pfDNV has dim-ple-like depressions at the icosahedral twofold axes; but has no canyon-like regions encircling the fivefold axes. The ico-sahedrally well-ordered nucleic acid has also been observed in pfDNV, suggesting that the protein and nucleic acid probably form closed interaction.
Flock House Virus RNA Polymerase Initiates RNA Synthesis De Novo and Possesses a Terminal Nucleotidyl Transferase Activity
Wenzhe Wu, Zhaowei Wang, Hongjie Xia, Yongxiang Liu, Yang Qiu, Yujie Liu, Yuanyang Hu, Xi Zhou
PLOS ONE , 2014, DOI: 10.1371/journal.pone.0086876
Abstract: Flock House virus (FHV) is a positive-stranded RNA virus with a bipartite genome of RNAs, RNA1 and RNA2, and belongs to the family Nodaviridae. As the most extensively studied nodavirus, FHV has become a well-recognized model for studying various aspects of RNA virology, particularly viral RNA replication and antiviral innate immunity. FHV RNA1 encodes protein A, which is an RNA-dependent RNA polymerase (RdRP) and functions as the sole viral replicase protein responsible for RNA replication. Although the RNA replication of FHV has been studied in considerable detail, the mechanism employed by FHV protein A to initiate RNA synthesis has not been determined. In this study, we characterized the RdRP activity of FHV protein A in detail and revealed that it can initiate RNA synthesis via a de novo (primer-independent) mechanism. Moreover, we found that FHV protein A also possesses a terminal nucleotidyl transferase (TNTase) activity, which was able to restore the nucleotide loss at the 3′-end initiation site of RNA template to rescue RNA synthesis initiation in vitro, and may function as a rescue and protection mechanism to protect the 3′ initiation site, and ensure the efficiency and accuracy of viral RNA synthesis. Altogether, our study establishes the de novo initiation mechanism of RdRP and the terminal rescue mechanism of TNTase for FHV protein A, and represents an important advance toward understanding FHV RNA replication.
VSD Could Effectively Manage Surgical Infection
Yuanyang LAI, Xiaolong YAN
- , 2018, DOI: : 10.3779/j.issn.1009-3419.2018.04.27
Abstract:
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