Browsing by Issue Date, starting with "1998"
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- A propósito do Cancioneiro de D. DinisPublication . Nobre, Cristina
- Induction of xylanolytic activity by Aureobasidium pullulans using xerographic paperPublication . Marques, Susana; Gírio, Francisco M.; Pala, Helena; Gama, Francisco Miguel; Mota, Manuel; Amaral-Collaço, M. T.
- Preliminary studies on enzymatic deinkingPublication . Pala, Helena; Gama, Francisco Miguel; Gírio, Francisco M.; Amaral-Collaço, M. T.; Mota, Manuel
- Euro : impacto nos negócios, na contabilidade e na fiscalidadePublication . Santos, Luís Lima
- O auditor e a (des)continuidadePublication . Santos, Luís Lima
- Alternativas contabilísticas : estudo comparativo entre Portugal e EspanhaPublication . Saéz Ocejo, José Luis; Santos, Luís Lima; Gonçalves, Policarpo; Guimarães, Raul
- O jogo no ensino-aprendizagem da línguaPublication . Barbeiro, Luís
- Effects of enzymatic treatment and refining on the properties of recycled pulpPublication . Pala, Helena; Mota, Manuel; Gama, Francisco MiguelThe effect of refining and enzymatic treatment on secondary fibre properties is shown. The following treatment sequences were studied: (i) refining; (ii) refining + enzymatic treatment; (iii) enzymatic treatment + refining; (iv) enzymatic treatment. The effectiveness of the methods was evaluated by measuring physical and mechanical properties of pulp and paper (drainage rate, burst, tensile and tear indexes). The obtained data revealed that combined refining and enzymatic treatment can be considered as a valuable methodology to upgrade recycled pulps. The first is responsible for increasing burst and tensile resistance. The second, if developed under controlled conditions, alloes better drainage, with only slight variation on paper mechanical properties.
- Percursos e projectos de vida: o processo de construção das atitudes dos professoresPublication . Vieira, RicardoApresenta-se o estudo de histórias de vida de nove professores com o intuito de entender a sua mente cultural que governa as práticas pedagógicas e influencia as suas representações sociais.
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