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Dibenzo-1,4-dioxin, also dibenzodioxin or dibenzo-p-dioxin (dibenzo-para-dioxin), is a polycyclic heterocyclic organic compound in which two benzene rings are connected by a 1,4-dioxin ring. Its molecular formula is C 12 H 8 O 2. The two oxygen atoms occupy opposite (para-) positions in the six-membered dioxin ring.
Polychlorinated dibenzodioxins (PCDDs), or simply dioxins, are a group of long-lived polyhalogenated organic compounds that are primarily anthropogenic, and contribute toxic, persistent organic pollution in the environment.
Polychlorinated dibenzofurans with chlorines at least in positions 2,3,7 and 8 are much more toxic than the parent compound dibenzofurane, with properties and chemical structures similar to polychlorinated dibenzodioxins. These groups together are often inaccurately called dioxins.
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D. Nicolau Água-Rosada e outras estórias verdadeiras e inverosímeis (short stories, 1990) A feira dos assombrados (novella, 1992) Fronteiras Perdidas, contos para viajar (short stories, 1999) O Homem que Parecia um Domingo (short stories, 2002) Catálogo de Sombras (short stories, 2003) Manual Prático de Levitação (short stories, 2005).
The state was designated Portuguesa on August 4, 1909, named after the Portuguesa River.The name of the river is in turn said to be derived from a local legend about a young woman of Portuguese descent who drowned in the Portuguesa River, possibly accompanying the conquistadors who founded the city of Guanare, the capital of the state.
2017. Viveros, Mara y Oyeronke Oyewumi: "La invención de las mujeres. Una perspectiva africana sobre los discursos occidentales del género. Bogotá: en la Frontera". En: Revista LiminaR, Estudios Sociales y Humanísticos, 16 (1). 2013–2206. [8] 2017. "Les études de genre et les mouvements ethnico-raciaux en Colombie.
Germán Alejandro Garmendia Aranis was born on April 25, 1990, in Copiapó, Chile, [4] [5] and lived there until he was 12 years old. [6] In 1993, when he was three, his father, Germán Luis Garmendia, died in a car crash on Christmas Eve.