Báo cáo khoa học: "Competitive exclusion against Salmonella gallinarum of Salmonella enteritidis infected chickens" ppt

... S. enteritidis infected chickens appear strong competitive exclusion against the coloniza- tion of S. gallinarum. Key words: Salmonella gallinarum , Salmonella enteritidis , competitive exclusion Introduction Fowl ... weight gains of S. enteritidis preinfected and noninfected groups during the 14-day test period afte r challenge with S. gallinarum Competitive e...

Ngày tải lên: 07/08/2014, 14:23

Ngày tải lên: 07/08/2014, 17:22

... different experimental conditions [25–54]. The number of G-tracts is often taken as the number of repeats, when the studied sequences do not contain exact multiples of the TTAGGG repeat. For example, the sequence d[AGGG(TTAGGG) 3 ] ... totally of four to six base pair ⁄ triple ⁄ tetrad layers, which might explain the high stability of this structure. The folding principle of Form...

Ngày tải lên: 06/03/2014, 09:22

... imperfect processivity are often cited as causes of the slowdown [14,29,30]. One of the most controversial theories concerns the influence of crystallinity and the change of the degree of crystallinity ... on the rate of the hydrolysis of cellulose. Biotechnol Bioeng 33, 1221–1234. 43 Lee YH & Fan LT (1982) Kinetic-studies of enzymatic- hydrolysis of insoluble cellulose –...

Ngày tải lên: 15/03/2014, 10:20

... effects of the substitutions on binding of NADPH seem to be min- imal in comparison to the effects on binding of FAH 2 . From these results, it is evident that replacement of Asp31, regardless of ... role in binding of the substrate and Leu32 plays a functional role in binding of trimethoprim. Abbreviations DHFR, dihydrofolate reductase; FAH 2 , dihydrofolate; FAH 4 , tetrahydro...

Ngày tải lên: 16/03/2014, 10:20

... extent of the knowledge of language in general which is necessary from the point of view of theoretical linguistics with the extent of knowledge of language necessary for the achievement of translation ... problem area of mathematical linguistics. Since the realization of the process of MT, as well as of that of HT, depends on the collecting of I(T n ), which...

Ngày tải lên: 16/03/2014, 19:20

... illustrations of H desc y i . For the relation types Inchoative of and Causative of, we define role groups in the oppo- site direction of the hierarchy, H parent y i = {y|y = y i ∨ y is a parent of y i }, H ance y i = ... ancestor of y i }. This is because lower roles of Inchoative of and Causative of relations represent more neu- tral stances or consequential states; for exam...

Ngày tải lên: 17/03/2014, 01:20

... presence of Zn 2+ , thus disclosing an interesting role for this divalent cation in the regulation of antimicrobial activities of histidine- rich peptides. Results Antimicrobial activities of histidine-rich ... antibacterial activity in the pres- ence of Zn 2+ (Fig. 1B). Next, we investigated the effect of peptides AHH24:1 and AHH24:2 against dif- ferent strains of E. faecalis...

Ngày tải lên: 23/03/2014, 11:20

... l M urate. Time courses of carotenoids and urate consumption The consumption of carotenoids was measured as an index of the overall consumption of the endogenous antioxidants of LDL during their ... consumption of carotenoids is practically unchanged by the presence of this pro-oxidant concentra- tion of urate (Fig. 3A). As observed with the formation of conjugated dienes (F...

Ngày tải lên: 23/03/2014, 12:20

... the active role of miR-23a in the growth promotion of malignant cells. The fundamental function of miRNAs is to regulate their targets by direct cleavage of mRNA or by inhibi- tion of protein synthesis. ... mutations of the miR-23a binding site (Fig. 4A). It was shown that miR-23a ASO or pcDNA3 ⁄ pri-23a did not affect the intensity of EGFP fluorescence in the vector bearing the...

Ngày tải lên: 18/02/2014, 04:20