This article presents the role of Georges Dumas in the development of Brazilian psychology in the first half of the twentieth century. France had at that moment a major influence on Brazilian cultural and scientific ...

The exchange rate is one of the most important prices in open economies. Exchange rate volatility (ERV) has been studied in terms of its measurement, forecast and impact and relationship with other variables. This article ...

When the scientific study of the Black Sea Region began in the late 18th and early 19th centuries, initially commissioned by adjacent powers such as the Habsburg and the Russian empires, this terra incognita was not yet ...

Using the chiral symmetry, we calculated the dominant contribution to the nucleon - nucleon potential due to the exchange of three non-correlated pions. This contribution is isovetor with pseudoscalar and axial components. ...

Using the chiral symmetry, we calculated the dominant contribution to the nucleon - nucleon potential due to the exchange of three non-correlated pions. This contribution is isovetor with pseudoscalar and axial components. ...