26 documents found, page 1 of 3
Um novo método de prospeção geoquímica para a identificação de depósitos profun...
Morais, Igor; Rosado, L.; Albardeiro, Luís; Mirao, Jose; Batista, Maria Joao; Matos, João XavierSUMMARY: The fast energetic transition in the world needs large amounts of mineral resources that are currently scarce. For the suppression of these needs, new mineral deposits must be found, demanding the development of new exploration techniques. Currently, in several metalogenetic provinces, surface deposits are rare. In the Iberian Pyrite Belt, geophysical techniques, namely gravimetry and electromagnetics,...
Um novo método de prospeção geoquímica para a identificação de depósitos profun...
Morais, Igor; Rosado, L.; Albardeiro, Luís; Mirao, Jose; Batista, Maria Joao; Matos, João XavierSUMMARY: The fast energetic transition in the world needs large amounts of mineral resources that are currently scarce. For the suppression of these needs, new mineral deposits must be found, demanding the development of new exploration techniques. Currently, in several metalogenetic provinces, surface deposits are rare. In the Iberian Pyrite Belt, geophysical techniques, namely gravimetry and electromagnetics,...
Analysis of clinical and environmental Candida parapsilosis isolates by microsa...
Sabino, Raquel; Sampaio, P.; Rosado, L.; Videira, Z.; Grenouillet, F.; Pais, C.Candida parapsilosis emerged as an important opportunistic pathogen, causing candidaemia worldwide. Nosocomial outbreaks triggered by this species have been frequently described, particularly in cancer patients. For a better understanding of its epidemiology, several typing methods are used and microsatellite analysis has been reported as highly discriminant. The main objective of this work was to study C. para...
A Multidisciplinary Approach to the Study of Archaeological Mortars from the To...
Cardoso, I.; Macedo, M. F.; Vermeulen, F.; Corsi, C.; Santos Silva, A.; Rosado, L.; Candeias, A.; Mirao, J.he Roman town of Ammaia (in Marvão Region) is considered one of the most important recent findings of the Roman presence in Portuguese territory. It was settled in Republican times and abandoned in the seventh century. In this research, 17 masonry mortars and renders from the West Tower (South Gate), the residential area near the West Tower, the macellum, the peristylium, the public bath building, the podium of...
A multidisciplinary approach to the study of archaeological mortars from the to...
Cardoso, I.; Macedo, A. L.; Vermeulen, F.; Corsi, C.; Santos Silva, A.; Rosado, L.; Candeias, A.; Mirão, J.The Roman town of Ammaia (in Marvão Region) is considered one of the most important recent findings of the Roman presence in Portuguese territory. It was settled in Republican times and abandoned in the seventh century. In this research, 17 masonry mortars and renders from the West Tower (South Gate), the residential area near the West Tower, the macellum, the peristylium, the public bath building, the podium o...
Estudo de Comunidades Fúngicas em Arquivos: Implicações na Conservação e na Saúde
Pinheiro, A.C.; Viegas, C.; Jurado, V.; Sabino, R.; Veríssimo, C.; Rosado, L.; Macedo, M.F.A influência da contaminação fúngica para a saúde ambiental e para a conservação do património é o tema premente e actual que suscitou a hipótese de estudo aqui apresentada. Os fungos, dada a sua extrema capacidade de adaptação, podem colonizar diversos materiais – orgânicos ou não – e a sua acção pode ser mecânica, por intermédio das suas hifas ou química, através dos seus metabolitos.Em termos de conservação ...
Os líquenes - sua aplicação em estudos de biomonitorização e etnobotânica
Gouveia, Tânia; Rosado, L.; Candeias, António; Costa, C.; Santos-Silva, CelesteFoi efectuado um estudo de monitorização da poluição atmosférica, na região de Évora, utilizando líquenes como bioindicadores. Nos três locais de amostragem, dois próximos de redes viárias com tráfego médio a intenso e outro situado numa área de montado, procedeu-se à inventariação, recolha e mapeamento das espécies liquénicas presentes sobre oliveiras. Das espécies identificadas, seleccionaram-se: Flavoparmeli...
Impact of acid mine drainage from Tinoca Mine on the Abrilongo dam (southeast P...
Morais, C.; Rosado, L.; Mirão, J.; Pinto, A.P.; Nogueira, P.; Candeias, A.This work presents a geochemical study conducted on the abandoned Tinoca Copper mine (southeast Portugal) to evaluate the potential hazard in surrounding areas particularly the effect on the Abrilongo River Dam which receivesthe acid waters from the mine watershed. The characterization of the area was performed over a period of 3 y and involved the study of waters, sediments and mine wastes. A sequential extrac...
Geoquímica de sedimentos de linha de água da antiga mina da Tinoca. Análise est...
Nogueira, P.; Morais, C.; Rosado, L.; Lopes, M.E.; Mirão, J.; Candeias, A.E.A geochemical study based on sequential extraction of four elements (Cu, Zn, Fe, and Pb) was conducted in the stream sediments of the ancient Cu mine of Tinoca (Alto Alentejo – Portugal). The statistical and spatial analysis allowed the inference of the affinities between the chemical elements. The relations can be expressed as stronger between the Cu, the Pb, the Fe and the Zn respectively. The distance to the...
Extracção sequencial em sedimentos e resíduos da antiga mina da Tinoca: geoquím...
Morais, C.; Mirão, J.; Rosado, L.; Pinto, A.P.; Lopes, M.E.; Nogueira, P.; Candeias, A.E.Mine wastes and sediments from the ancient copper mine of Tinoca (Alto Alentejo – Portugal) were submitted to a sequential extraction with the objective to establish distribution patterns for copper (Cu), iron (Fe), zinc (Zn) and lead (Pb) in different specific phases: amorphous oxides; rystalline oxides; sulphides and silicates. The results of the sequential extraction showed that Cu and Fe were predominantly ...