SEQUENTIAL CELLULAR CHANGES PRODUCED BY TYPES 5 AND 7 ADENOVIRUSES IN HELA CELLS AND IN HUMAN AMNIOTIC CELLS

Sequential Cellular Changes Produced by Types 5 and 7 Adenoviruses in Hela Cells and in Human Amniotic Cells

The sequential cytological changes which develop in tissue culture cells infected with adenovirus types 5 and 7 are described and compared with those produced by adenovirus types 1, 2, 3, and 4. The evidence that is presented indicates that types 1, 2, and 5 belong to one major subdivision of the adenovirus group and types 3, 4, and 7 to another. That the host cell nucleus is the principal site...

Sequential cellular changes produced by african horse sickness virus in monkey kidney cells

sequential cellular changes produced by african horse-sikness virus in monkey kidney cells

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Correlation of Production of Infectious Virus with Sequential Stages of Cytologic Alteration in Hela Cells Infected with Adenoviruses Types 5 and 7

Studies correlating the production of infectious adenovirus (types 5 and 7) and the progression of the stages of virus-induced cytologic change in HeLa cells are presented. The results reveal a close relationship between the development of the characteristic nuclear changes and adenovirus synthesis. They suggest that cells manifesting the first stages of nuclear change, characterized by the app...

: examining l2 teachers’ corrective feedback types in relation to learners’ uptake, proficiency levels, and context types

abstract this study investigates the teachers’ correction of students’ spoken errors of linguistic forms in efl classes, aiming at (a) examining the relationship between the learners’ proficiency level and the provision of corrective feedback types, (b) exploring the extent to which teachers’ use of different corrective feedback types is related to the immediate types of context in which err...