A fluorescence quenching method was used to determine the equilibrium binding constants for the association of acridine, acridine orange, and acridine yellow G to humic acid. The fluorescence of each polycyclic aromatic nitrogen heterocycle (PANH) was monitored as aliquots of humic acid were added, and a Stern-Volmer plot was produced in which the slope is the equilibrium constant of the bindin...

O trabalho coteja a peça A História Terrível porém Inacabada de Norodom Sihanouk, rei do Camboja, Hélène Cixous, encenada por Ariane Mnouchkine em 1985, e Imagem que Falta, Rithy Panh (2013). filme é narrado sob o ponto vista uma vítima da cruel ditadura Khmer Vermelho no Camboja (1975–1979), tema também presente na encenação francesa, utiliza um recurso formal visto obra Théâtre du Soleil: bon...

Polycyclic aromatic hydrocarbons (PAHs) are the most abundant type of molecule present in the interstellar medium (ISM). It has been hypothesized that nitrogen replacement within a ring is likely for PAHs present in the ISM. Additionally, electrons, protons, and hydrogen atoms are readily added to or removed from PAHs creating a truly diverse set of chemistries in various interstellar regions. ...