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Novembro 2021

What Does Ex-Dividend Mean, and What Are the Key Dates?

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Ex-dividend refers to the period after which a stock is traded without a right to its next dividend payment. The ex-dividend date or “ex-date” is the day the stock starts trading without the value of its next dividend payment. Typically, this date is one business day before the record date, meaning that an investor who …

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Neurocircuitry of Addiction Neuropsychopharmacology

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Schematic drawing describing the sequential and cumulative effects of neuroadaptive changes hypothesized to contribute to the neuroplasticity that promotes compulsive drug-seeking. An early neuroadaptation, common to all drugs of abuse and observed after a single injection of cocaine, is increased excitability of the mesolimbic dopamine system reflected in long-term potentiation dependent on changes in glutamate …

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