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Grass carp reovirus (GCRV) is a pathogen that causes hemorrhagic disease of grass carp. It is the most serious infectious disease of carp and causes serious losses of fingerlings of grass carp and black carp. In this study, a recombinant VP4, one of the viral core proteins, was constructed with a histidine tag and expressed at a high level in E. coli, and… (More)
It has been conjectured that r(C nl Km) = (m-1)(n-1) + 1 for all (n, m) =1= (3,3) satisfying n ~ m. We prove this for the case m = 5.
The fucoidanase from Fusarium sp. (LD8) was obtained by solid-state fermentation. The fermented solid medium was extracted by citric acid buffer, and the extracts were precipitated by acetone and purified by Sephadex G-100 successively. The results showed that the specific fucoidanase activity of purified enzyme was 22.7-fold than that of the crude enzyme.… (More)
A loop-mediated isothermal amplification (LAMP) method was developed for detection of members of the genus Ranavirus. The optimum reaction mixture contained 2.5 μL of each inner primer, RV-FIP (20 pmol/μL) and RV-BIP (20 pmol/μL), 0.5 μL of each outer primer, RV-F3 (10 pmol/μL) and RV-B3 (10 pmol/μL), 1.25 μL of each loop primer, RV-LF (20 pmol/μL) and… (More)
The Ramsey number R(C n , Km) is the smallest integer p such that any graph G on p vertices either contains a cycle C n with length n or contains an independent set with order m. In this paper we prove that R(C n , K 4) = 3(n-1) + 1 (n ~ 4). We shall only consider graphs without multiple edges or loops. The Ramsey number R(Cn,K m) is the smallest integer p… (More)