O sublime e o problema da modernidade em Pedro Kilkerry

Current paper discusses manifestations of the sublime in Pedro Kilkerry´s poetry as one of the distinguishing characteristics within the Parnassian orientations predominant in his cultural context. The particular way that Kilkerry employs the sublime´s expedients demonstrates the dialogue of his poetry with Romantic ideals, whose traits in his lyrical stance are directly linked to Symbolist influence, far from traditional Parnassian models. The sublime in Kilkerry develops through an elliptical and suggestive language that demonstrates the impossibility of the ideal being directly expressed and shows the affinity of his poetic work with the idealist crisis that marks post-Romantic poetry and provides the basis on which the poetics of Modernity is structured. The poetry of Pedro Kilkerry develops within a complex zone of convergence between the models provided by the Parnassian aesthetic, Romantic idealism with an atavic presence to Symbolism, and the search for new answers to old idealistic concerns. The meeting of these three conflictive currents, perceptible in the manifestations of the sublime in Pedro Kilkerry´s poetry, demonstrates his lyrical sensitivity to the trends of Modernity.

Ozone sounding in the Metropolitan Area of Sao Paulo, Brazil: Wet and dry season campaigns of 2006

In the Metropolitan Area of Sao Paulo (MASP), located in southeastern Brazil, surface ozone concentrations are often well above the national air quality standards. In this experimental study, we attempted to characterize the vertical profile of atmospheric ozone and transport of the ozone plume in the boundary layer, using data from the first ozone soundings ever taken in the MASP. In 2006, we launched fifteen ozonesondes: eight from 15 to 18 May (dry season); and seven from 30 October to 1 November (wet season). Vertical ozone mixing ratios in the troposphere were approximately 40 ppb, reaching maximum values of approximately 60 ppb during the dry-season campaign and approximately 100 ppb during the wet-season campaign. In the first and second campaigns, the mean tropospheric ozone column abundance was 28.2 and 41.3 DU, respectively, which can be attributed to the considerable variation in the annual temperature cycle over the region. To determine the effect that biomass burning has on ozone concentrations over the MASP, we analyzed wind trajectories and satellite-derived fire counts. We cannot state unequivocally that biomass burning contributed to higher ozone concentrations above the boundary layer during the experimental campaigns. In the boundary layer, ozone concentrations increase with altitude, peaking at the base of the inversion layer, suggesting that local emissions of volatile organic compounds and nitrogen oxides play a significant role in the lower troposphere over MASP, influencing ozone formation not only at the surface but also vertically in the atmosphere and in distant regions. (C) 2012 Elsevier Ltd. All rights reserved.