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Análise de parabenos em águas superficiais urbanas por extração em fase sólida on-line usando cromatografia líquida acoplada à espectrometria de massas
(Universidade Federal de São Carlos, 2017-05-24) Triano, Simone Pereira do Nascimento; Cass, Quezia Bezerra; https://lattes.cnpq.br/9197210255594409; https://lattes.cnpq.br/4783199000732777
Parabens are the most popular antimicrobials used for more than 100 years in personal care products, the most known are methylpaben, ethylparaben, propylparaben and butylparaben. The continued release of these antimicrobials turned them into corganic pollutants. Therefore, methods that allow quantification at low limits are important. The present study discusses the development and validation of the analytical method by direct injection of samples into solid phase extraction using liquid chromatography coupled to the mass spectrometer for determination at low levels in spring water and waste water (ng/L) from the city of São Carlos - SP. Methylparaben at 20.0 ng/L was found in river water sample from latitude 22°00’68”S, longitude: 47°90’47”W ; methylparaben at 18.0 ng/L and butylparaben 4.1 ng/L were found in urban water sample latitude: 22°02’21”S, longitude: 47°91’40”W around Monjolinho River. The attractiveness of the developed method consists of the low volume of samples and solvents required for analyses. The four parabens were quantified in the native matrix in a total run time of 9.5 min.
A politicidade da educação a partir da experiência de uma docente de sociologia
(Universidade Federal de São Carlos, 2017-05-24) Chaves, Silvania Maria; Ferreira, Dulcinéia de Fátima; https://lattes.cnpq.br/9339578170693084; https://lattes.cnpq.br/5381402934936368
This job had as objective Reflect and reaffirm Education as a political act and democracy. The studies conducted evidence we are living in times of setback regression, marked by loss of rights and by the productions of impotence and suffering: the capitalist Western rationality has produced, in this way, atomized, fragile individuals and the idea that changing reality is impossible. Although this context contributes to the construction of conformed subjectivities, we perceive History as a possibility in which men and women are subjects of change and resistance in midst of forces that act, simultaneously, in a regulatory and emancipatory manner. From the perspective of education as a possibility, as a result of historical time, we share powerful experiences, loaded with how to understand education as a political act, held in the sociology classes of the State School Aggêo Pereira do Amaral, located in Sorocaba, in the interior of the State of São Paulo, considering that they are tools for confronting the dynamics of servitude, prejudice, racism, fascism and machismo, intricate in the daily microrelations. Based on the theoretical dialogues and the narrated experiences, we affirm that pedagogical practices based on solidarity, dialogue and cooperation open doors to the creation of emancipatory sociability’s and constitute seeds for the construction of a world did from humanized and democratic relations. The educational processes and ongoing resistance movements shared in this research fuel the hope that another reality is possible and that social transformation will occur through collective action. In a scenario that has denied politics, we reaffirm it as an extension of life as a power.