Mario Terranova

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<italic>The paper deals with the problem of evaluating how the originality of the attributes of a relation, i.e. the number of distinct values in each attribute, is affected by relational operations that reduce the cardinality of the relation. This is indeed an interesting problem in research areas such as database design and query optimization. Some(More)
The Escherichia coli Ada protein repairs methylphosphotriesters in DNA by direct, irreversible methyl transfer to one of its own cysteines. Upon methyl transfer, Ada acquires the ability to bind specific DNA sequences and thereby to induce genes that confer resistance to methylating agents. The amino-terminal domain of Ada, which comprises the(More)
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