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Streptococcus suis (S.suis) is an important zoonotic pathogen that causes severe diseases in humans and pigs. Biofilms of S. suis can induce persistent infections that are difficult to treat. In this study, the effect of tylosin on biofilm formation of S. suis was investigated. 1/2 minimal inhibitory concentration (MIC) and 1/4 MIC of tylosin were shown to(More)
The public goods game is one of the most famous models for studying the evolution of cooperation in sizable groups. The multiplication factor in this game can characterize the investment return from the public good, which may be variable depending on the interactive environment in realistic situations. Instead of using the same universal value, here we(More)
Porcine circovirus type 2 (PCV2) infection causes postweaning multisystemic wasting syndrome and porcine circovirus-associated diseases in many regions. A total of 77 sequences, including 31 sampled from Henan province of China, were retrieved from GenBank and subjected to amino acid variation and phylogenetic analyses. The two PCV genotypes prevailing in(More)
Graded nano-composite Si<inf>3</inf>N<inf>4</inf>-based ceramics cutting tool material was fabricated by HP (hot pressing) sintering technique. The composite sintering additives composed of Y<inf>2</inf>O<inf>3</inf> and La<inf>2</inf>O<inf>3</inf> was used. The microstructure of every layer and mechanical properties of composite ceramic were studied.(More)
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