Browsing by resource type "lecture"
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- Advances on pilot plant and cooking lab facilities for training and educationPublication . Silva, Cristina L. M.; Guimarães, Marta; Hogg, C.; Pintado, M. E.
- Amados Por Deus: Reflexão Bíblica Sobre O Amor De DeusPublication . Couto, António
- Antropologia e Cidadania. O Caso dos Bancos AlimentaresPublication . Gomes de Araújo, Henrique L.Os objectivos são:compreender o significado do tempo no voluntariado;conhecer os processosdistributivos num Banco Alimentar;comparar a lógica da economia do mercado com alógica da economia da gratuitidade.
- Aspectos Éticos dos Organismos Geneticamente ModificadosPublication . Araújo, Joana
- Atendimentos de Enfermagem na Escola - benefícios de registo em base de dados electrónicaPublication . Festas, Constança; Braga, Clara; Vieira, Margarida; Neves-Amado, João
- Biodegradation of Carbamazepine and Diclofenac by Bacterial Strain Labrys portucalensisPublication . Bessa, Vânia S.; Moreira, Irina; Murgolo, Sapia; Mascolo, Giuseppe; Castro, Paula M. L.The occurrence of pharmaceuticals in the environment has been a topic of increasing concern. Pharmaceuticals are not completely mineralized in the human body and are released on the sewage systems as the pharmaceutical itself and as their “biologically active” metabolites through excretion, as well as by improper elimination and disposal. Conventional wastewater treatment plants (WWTPs) are not designed to remove these emerging pollutants and they are thus released into the environment. The antiepileptic drug carbamazepine (CBZ) and the non-steroidal anti-inflammatory diclofenac (DCF) are two widely used pharmaceuticals, frequently detected in water bodies, including rivers and groundwater, in concentrations ranging from ng L 1 to mg L 1. These two compounds were classified as medium to high-risk pollutants in WWTP effluents and surface waters. Also, CBZ has been suggested as a molecular marker of wastewater contamination in surface water and groundwater and the European Union included DCF in the watch list of substances Directive to be monitored. In the present study, biodegradation of CBZ and DCF by the bacterial strain Labrys portucalensis F11, a strain able to degrade other pharmaceutical compounds, was assessed; tests were performed with F11 as single carbon and energy source, as well as in presence of 5.9mM of sodium acetate. In assays supplemented with 2.0 and 4.0 µM of CBZ, the compound was no longer detected in the bulk medium after 24hr and 5days, respectively. Complete degradation was achieved in 21 days for 11.0 µM and in 23 days for 21.0 µM. For the highest concentration tested (43.0 µM), 95% of degradation was achieved in 30days. Supplementation with acetate increased the degradation rate of CBZ, for all tested concentrations. In the case of DCF, when supplemented as a single carbon source, approximately 70% of DCF (1.7, 3.3, 8.4, 17.5 and 34.0 µM) was degraded in 30days. Complete degradation was achieved in the presence of acetate for all tested concentrations, at higher degradation rates. The detection of intermediates produced during DCF biodegradation was performed by UPLC-QTOF/MS/MS, which allowed the identification of a range of metabolites. Stoichiometric liberation of chorine occurred and no metabolites were detected at the end of the biodegradation assays suggesting a complete mineralization of DCF. Strain Labrys portucalensis F11 proved to be able to degrade these two top priority environmental contaminants and may be potentially useful for biotechnological applications/environment remediation.
- Broa de Avintes: importância social, cultural e económica.Publication . Rocha, João M.; Malcata, F. Xavier
- Capital psicológico, valores profissionais e satisfação no trabalho: um estudo exploratórioPublication . Pinto, Joana Carneiro; Gaspar, Augusta; Pires, CatarinaEste estudo pretende averiguar o impacto dos líderes nos membros das suas equipas, prevendo-se que o capital psicológico (constituído pelas dimensões de esperança, otimismo, resiliência e eficácia) e os valores profissionais dos líderes influenciem o capital psicológico, os valores, e a satisfação com o trabalho dos membros das equipas que coordenam. Apesar de diversos estudos terem já demonstrado que estas variáveis dos líderes têm um impacto positivo nos resultados desejados no local de trabalho, Luthans, em 2006, as relações entre este conjunto de variáveis ainda não foram exploradas no cenário empresarial português. O capital psicológico é visto como um recurso que vai além do capital humano (experiência, conhecimento e habilidades) ou capital social (relacionamentos, redes). Trata-se de “quem a pessoa é aqui e agora” e “quem a pessoa se pode tornar” num futuro próximo se os recursos psicológicos forem desenvolvidos no local de trabalho. Os valores são crenças, metas desejáveis que transcendem ações e situações específicas, e que servem como padrões ou critérios que orientam a ação. Finalmente, a satisfação no trabalho é um estado subjetivo que pode influenciar o funcionamento da organização e contribuir para o aumento da produtividade.
- Carta Cultural Ibero-AmericanaPublication . Teixeira, Luis Miguel Lopes