Effect of roasting on the antioxidant activity of coffee brews

Colombian Arabica coffee beans were roasted to give light, medium, and dark samples. Their aqueous extracts were analyzed by gel filtration chromatography, UV-visible spectrophotometry, capillary electrophoresis, and the ABTS(.+) assay. A progressive decrease in antioxidant activity (associated mainly with chlorogenic acids in the green beans) with degree of roasting was observed with the simultaneous generation of high (HMM) and low molecular mass (LMM) compounds possessing antioxidant activity. Maximum antioxidant activity was observed for the medium-roasted coffee; the dark coffee had a lower antioxidant activity despite the increase in color. Analysis of the gel filtration chromatography fractions showed that the LMM fraction made a greater contribution to total antioxidant activity than the HMM components.

"That a black twisty divil could be hiding under such comeliness": Woman vs woman in Early Twentieth-Century Irish Theatre

This essay investigates representations of womanhood in early twentieth-century Irish theatre, particularly in terms of the disjunction between woman as a physical, social being and the symbolic Woman as an ideological construction promoted by both church and state. It uses Lacanian theory in conjunction with Irish women’s studies scholarship to inform the analyses of plays by dramatists including Maud Gonne, Padraic Colum, Lennox Robinson, and T. C. Murray. The aim is to show how women in Irish society were faced with the impossible task of fulfilling such idealized roles as Woman, Wife, and Mother, and how this situation was variously represented and contested in the theatre during the first quarter of the twentieth century.

The Terror that Underpins the “Peace”: The Political Economy of Colombia's Paramilitary Demobilization Process

Studies on terrorism have traditionally focused on non-state actors who direct violence against liberal states. These studies also tend to focus on political motivations and, therefore, have neglected the economic functions of terrorism. This article challenges the divorce of the political and economic spheres by highlighting how states can use terrorism to realise interconnected political and economic goals. To demonstrate this, we take the case of the paramilitary demobilisation process in Colombia and show how it relates to the US-Colombian free trade agreement. We argue that the demobilisation process fulfils a dual role. First, the process aims to improve the image of the Colombian government required to pass the controversial free trade agreement through US Congress to protect large amounts of US investment in the country. Second, the demobilisation process serves to mask clear continuities in paramilitary terror that serve mutually supportive political and economic functions for US investment in Colombia.