This article analyzes some characteristics concerning the rise of the Brazilian serial columns [cronica] in the nineteenth century. One of the main concerns is the analysis of the issue and occupation of space in newspaper's ...

Shortly before setting out to write Memorias Postumas de Bras Cubas (Epitaph of a small winner), Brazilian writer Machado de Assis was busy with the series of columns Notas Semanais, published in the newspaper O Cruzeiro, ...

Several diatom species produce resting stages as part of their life cycle. These resting stages accumulate in the sediments where they can remain for a long time before being re-suspended in the water column and switching ...

A liquid chromatography method is described for the analysis of fluoxetine and norfluoxetine enantiomers in fungi cultures. The analytes were separated simultaneously by LC employing a serial system. The resolution was ...

The early Miocene Patagoniense transgression in southwestern Patagonia, Argentina (Estancia 25 de Mayo Formation), consists of shallow marine to estuarine deposits that bear numerous oyster shell beds distributed all over ...

The development of a method for As speciation in aqueous by-product of pyrolysis process of foliate bituminous is described in the present work. Arsenic species are separated by liquid chromatography (LC) coupled to ...