Serge Frontier

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Long-term variations (1979–1990) of three benthic communities (Eastern Channel, France) were analysed by means of factor correspondence analysis (FCA), a multivariate method of ordination in reduced space, and rank-frequency diagrams (RFD). FCA distinguished periods of relative homogeneity and periods of strong variations in the structure of the(More)
The influence of the number of bradyzoites of the Coccidia Besnoitia inoculated in the culture medium of HeLa cells on their penetration rate was investigated. The intracellular penetration rate increased with the "size of inoculum", then seemed constant when a certain density is reached. Important densities of bradyzoites in the inoculum led to an unequal(More)
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