Estudo da utilização de cinzas de biomassa (volantes e de fundo) na remoção de fosfatos

Dissertação para obtenção do Grau de Mestre em Engenharia do Ambiente, perfil Engenharia Sanitária

À la búsqueda de la ciência política tomasiana. En torno al libro IV del "de regimine principum"

pp. 73-85

Comparison between immunomagnetic separation, coupled with immunofluorescence, and the techniques of Faust et al. and of Lutz for the diagnosis of Giardia lamblia cysts in human feces

In the present study, the performance of Immunomagnetic Separation technique, coupled with Immunofluorescence (IMS-IFA), was compared with the FAUST et al. and Lutz parasitological techniques for the detection of Giardia lamblia cysts in human feces. One hundred and twenty-seven samples were evaluated by the three techniques at the same time showing a rate of cyst detection of 27.5% by IMS-IFA and 15.7% by both Faust et al. and Lutz techniques. Data analysis showed a higher sensitivity of IMS-IFA for the detection of G. lamblia cysts in comparison with the techniques of FAUST et al. and Lutz. The use of this methodology as a routine procedure enables the processing of many samples simultaneously, in order to increase recovery rate of G. lamblia cysts and reduce the time of sample storage.

Estudo do efeito da adição de iões metálicos na corrosão de vidros potássicos

Dissertação apresentada para obtenção do Grau de Doutor em Conservação e Restauro, especialidade em Ciências da Conservação, pela Universidade Nova de Lisboa, Faculdade de Ciências e Tecnologia

A presença meso-assíria no Médio Eufrates: o contributo da cerâmica de Tall Qabr Abū al-'Atīq (Deir ez-Zor, Síria)

Dissertação apresentada para cumprimento dos requisitos necessários à obtenção do grau de Mestre em Arqueologia.

O radicalisno islamista na Península Ibérica. A reconquista do Al Andalus

Dissertação apresentada para cumprimento dos requisitos necessários à obtenção do grau de Mestre em Ciência Política e RelaçõesInternacionais.

Filmes finos de óxidos metálicos estudo e aplicações

Dissertação para obtenção do Grau de Mestre em Engenharia de Materiais

HISTORICAL SERIES OF PATIENTS WITH VISCERAL LEISHMANIASIS TREATED WITH MEGLUMINE ANTIMONIATE IN A HOSPITAL FOR TROPICAL DISEASES, MACEIÓ-AL, BRAZIL

Introduction: Visceral leishmaniasis is an endemic protozoan found in Brazil. It is characterized by fever, pallor, hepatosplenomegaly, lymphadenopathy, and progressive weakness in the patient. It may lead to death if untreated. The drug of choice for treatment is meglumine antimoniate (Glucantime®). The aim of this study was to evaluate patients with visceral leishmaniasis according to criteria used for diagnosis, possible reactions to Glucantime® and blood pressure measured before and after treatment. Methods: 89 patients admitted to the Teaching Hospital Dr. Hélvio Auto (HEHA) in Maceió-AL, in the period from May 2006 to December 2009 were evaluated. Data were collected on age, sex, origin, method of diagnosis, adverse effects of drugs, duration of hospitalization, duration of treatment and dosage up to the onset of adverse effects. Results: There was a predominance of child male patients, aged between one and five years old, from the interior of the State of Alagoas. Parasitological diagnosis was made by bone marrow aspirate; three (3.37%) patients died, 12 (13.48%) had adverse reactions and treatment was changed to amphotericin B, and 74 (83.14%) were cured. Changes that led to replacing Glucantime® were persistent fever, jaundice, rash, bleeding and cyanosis. Conclusion: During the study, 89 patients hospitalized for VL were analyzed: 74 were healed, 12 were replaced by amphotericin B treatment and three died. Most of them were under five years old, male and came from the interior. The dosage and duration of treatment with Glucantime® were consistent with that advocated by the Ministry of Health. Persistence of fever, jaundice, rash, cyanosis and bleeding were the reactions that led the physician to modify treatment. No change was observed in blood pressure before and after treatment. This study demonstrated the work of a hospital, a reference in the treatment of leishmaniasis, which has many patients demanding its services in this area. It demonstrates that this disease is still important today, and needs to be addressed properly to prevent injury and death due to the disease.

Aluminum and Sulphate Removal by a Highly Al-Resistant Dissimilatory Sulphate-Reducing Bacteria Community

A highly Al-resistant dissimilatory sulphatereducing bacteria community was isolated from sludge of the wetland of Urgeiriça mine (community W). This community showed excellent sulphate removal at the presence of Al3+. After 27 days of incubation, 73,86 and 81% of sulphate was removed in the presence of 0.48, 0.90 and 1.30 mM of Al3+, respectively. Moreover,Al3+ was simultaneously removed: 55,85 and 78% of metal was removed in the presence of 0.48, 0.90 and 1.30 mM of Al3+, respectively. The dissociation of aluminiumlactate soluble complexes due to lactate consumption by dissimilatory sulphate-reducing bacteria can be responsible for aluminum removal, which probably precipitates as insoluble aluminium hydroxide. Phylogenetic analysis of 16S rRNA gene showed that this community was mainly composed by bacteria closely related to Desulfovibrio desulfuricans. However, bacteria affiliated to Proteus and Ralstonia were also present in the community.

Molybdenum Induces the expression of a protein containing a new heterometallic Mo-Fe cluster in desulfoVibrio alaskensis

Biochemistry. 2009 Feb 10;48(5):873-82. doi: 10.1021/bi801773t.

Formation of a stable cyano-bridged dinuclear iron cluster following oxidation of the superoxide reductases from Treponema pallidum and Desulfovibrio vulgaris with K(3)Fe(CN)(6)

Inorg. Chem., 2003, 42 (4), pp 938–940 DOI: 10.1021/ic0262886

Monitorização e otimização da deposição de filmes de óxidos mistos por RF-sputtering

Dissertação para obtenção do Grau de Mestre em Engenharia Física

Mieloma Múltiplo e Amiloidose AL

O mieloma múltiplo e a amiloidose de cadeias leves (AL) de imunoglobulina são doenças proliferativas plasmocitárias incuráveis que raramente coexistem. Cerca de 10 a 15% dos doentes com mieloma múltiplo desenvolvem amiloidose AL clinicamente sintomática, sendo a situação inversa muito rara (0,4%). Apresenta-se um caso não previamente diagnosticado de mieloma múltiplo não secretor, isto é, sem identificação de paraproteína na imunoelectroforese ou imunofixação sérica ou urinária, numa doente internada por icterícia pruriginosa e volumosa hepatomegália. A biópsia hepática confirmou o diagnóstico de amiloidose e o doseamento sérico das cadeias leves livres das imunoglobulinas revelou hiperprodução de cadeias leves kappa (k). Os autores abordam as particularidades clínicas e de investigação destas duas entidades em que o diagnóstico precoce e a terapêutica atempada influenciam o prognóstico.