Francisco Jonas Nogueira Maia

Thermo-oxidative evaluation of new cardol derivatives as antioxidants for mineral oils

In this study, the thermo-oxidative stability of two new phosphorylated derivatives of cardol, a compound from the cashew (Anacardium occidentale L.) industry waste CNSL (cashew nutshell liquid), were evaluated. The antioxidant capacity of these new molecules upon two mineral oils, NH10 and NH20 were also studied by thermogravimetric analysis (TG/DTG), observing the onset and offset temperatures variation. The results showed that both MP and DP Cardol increased considerably the onset and offset temperatures of NH10 and NH20 oils.

The Training of Licensed in Chemistry in the UFC Discussed in the Distance Education and Presential Modalities

Currently, distance learning is being adopted strategically to expand higher education in the country, that in addition to reduce geographical boundaries, eases studies. This paper describes the first overview of the Chemistry course offered by the Federal University of Ceará (UFC) in the distance education model, after four years of existence, seeking to assess its evolution, the profile and the degree of student satisfaction. A comparison with its analogue in presential modality also part of the scope of work within feasible criteria of comparison. Initially, a questionnaire was applied with students who were enrolled in the virtual learning system. The data obtained in this study were compared with data obtained from the coordination of the degree course of Chemistry presential. The results showed that in the profile of the distance course prevails older students, from public school and workers. In both of modalities, students have declared to be satisfied with the progress of course, despite challenges

A Formação do Licenciado em Química na UFC Discutida nas Modalidades Ensino à Distância e Presencial

Atualmente, o Ensino a Distância vem sendo adotado estrategicamente para expandir o ensino superior no pais, que alem de reduzir limites geograficos, flexibiliza os estudos. O presente trabalho descreve o primeiro panorama do curso de Licenciatura em Quimica Semipresencial da UFC, apos quatro anos de existencia, buscando avaliar sua evolucao, o perfil e o grau de satisfacao dos alunos. Uma comparacao com seu analogo na modalidade presencial tambem fez parte do escopo do trabalho, dentro de criterios factiveis de comparacao. Inicialmente, foi aplicado um questionario com os estudantes matriculados no sistema virtual de aprendizagem. Os dados obtidos neste estudo foram comparados com os dados obtidos junto a coordenacao do Curso de Licenciatura em Quimica presencial. Os resultados mostraram que no perfil do curso a distância prevalecem alunos mais velhos, da escola publica e profissionalmente ativos. Em ambas as modalidades, os estudantes declararam-se satisfeitos com o andamento do curso, apesar dos desafios encontrados. DOI: 10.5935/1984-6835.20130068