No abstract

Emerging countries have witnessed an incredible change in their societal structure in the last few years. In Brazil, the economical rise of the middle class brought more that 100 million people to the marketplace. This stimulus to consumerism (i.e. the social and economic order that encourages the purchase of goods and services in ever‐greater amounts) is accompanied by a notable growth in social movements and mobilization of citizen‐consumers, which indicates changes in the values of individuals and concerns with the direction the society is taking. Conscious and political consumption consequently arises as an alternative way. Especially among young consumers such issues are interesting to address from a theoretical and social point of view, as this new generation will shape the future of the nation. Therefore, the main objective of this study is to analyse socially conscious and political consumption in terms of consumers’ civic engagement as political citizens. We argue that the young political consumer is value‐oriented. The study relied on quantitative research, conducted through an internet‐based survey where 458 valid questionnaires were obtained. Schwartz's Portrait Values Questionnaire was used to measure personal values of the interviewees. Conscious and political consumption were measured through eight questions addressing alter‐ and anti‐consumption actions. The results indicated significant differences among the personal values of the university students that were classified as political consumers. Universalism and benevolence stood out among the core values of this group, with prominence of self‐transcendence, appreciation for equality and concerns for the well‐being of others. However, a gap was observed between the discourse and action of interviewees, once only one‐third of the sample undertook some form of political consumption. The conclusion was that most of the university students interviewed show the will to change society with individual actions, but demonstrate very little political commitment, and currently do not act politically in their purchases.

Mixed micelles of cetyltrimethylammonium bromide (CTABr) or dodecyltrimethylammonium bromide (DTABr) and the alpha-nucleophile, lauryl hydroxamic acid (LHA) accelerate dephosphorylation of bis(2,4-dinitrophenyl)phosphate (BDNPP) over the pH range 4-10. With a 0.1 mole fraction of LHA in DTABr or CTABr, dephosphorylation of BDNPP is approximately 10(4)-fold faster than its spontaneous hydrolysis, and monoanionic LHA(-) is the reactive species. The results are consistent with a mechanism involving concurrent nucleophilic attack by hydroxamate ion (i) on the aromatic carbon, giving an intermediate that decomposes to undecylamine and 2,4-dinitrophenol, and (ii) at phosphorus, giving an unstable intermediate that undergoes a Lossen rearrangement yielding a series of derivatives including N,N-dialkylurea, undecylamine, undecyl isocyanate, and carbamyl hydroxamate.

Sumário: 1. Introdução; 2. Fundamentação teórica; 3. Método do trabalho; 4. Apresentação e discussão dos resultados; 5. Considerações finais. A avaliação das universidades vem sendo defendida como instrumento necessário para elevar a qualificação institucional, promovendo a melhoria do ensino, da pes-* Artigo recebido em fev.