Goncalo says he's not sure why this particular group makeup generates the most ideas, but it could be because narcissists can help get ideas on the table.

Goncalo称，他还不无法确定为什么这个特定组合能产出最多想法，但可能是由于自恋者能把各种想法放到台面上来。

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Though they apparently were authorized to transport passengers in Niteroi and neighboring Sao Goncalo, the suspects were not allowed to operate the van in Rio, he said.

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"We want to prove to people that with new technologies it is easier to keep older people living at home, even if they are a bit dependent, " exhibition organizer Goncalo Areia told AFP.

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Marta Dominguez, head of a police unit for female victims in the city of Niteroi was replaced for failing to investigate that case properly, while Martha Pereira, an investigator in nearby Sao Goncalo, was ousted for not helping the Brazilian victim fast enough.

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