A recent study shows that prolonged inhibition of bacterial cell division causes a block of DNA replication, which is followed by an irreversible cell cycle arrest. The finding indicates a tight coupling between cell division and DNA replication in bacteria.

The vast majority of published work in the field of associative learning seeks to test the adequacy of various theoretical accounts of the learning process using average data. Of course, averaging hides important information, but individual departures from the average are usually designated "error" and largely ignored. However, from the perspective of an individual differences approach, this er...

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