Exopolysaccharide production by Enterobacter A47: optimization of cultivation conditions and study of polymer functional properties

Dissertação para obtenção do Grau de Mestre em Biotecnologia

O poder da imagem: uma imagem da adequação da imagem de Lula aos media em campanhas presidenciais

Dissertação apresentada para cumprimento dos requisitos necessários à obtenção do grau de Mestre em Ciências da Comunicação - Comunicação Estratégica

Investigation of the regulation mechanisms for bioplastics production from industrial residues

Dissertação para obtenção do Grau de Mestre em Biotecnologia

Production and characterization of monoclonal antibodies to the edta extract of Leptospira interrogans, serovar icterohaemorrhagiae

Monoclonal antibodies (MABs) ivere produced against an etbylenediaminetetraacetate (EDTA) extract of Leptospira interrogans serovar icterohaemorrhagiae being characterized by gel precipitation as IgM and IgG (IgGl and IgG2b). The EDTA extract was detected as several bands by silver staining in SDS-PAGE. In the Western blot the bands around 20 KDa reacted with a monoclonal antibody, 47B4D6, and was oxidized by periodate and was not digested by pronase, suggesting that the determinant is of carbohydrate nature, lmmunocytochemistry, using colloidal gold labeling, showed that an EDTA extract determinant recognized by monoclonal antibody 47B4D6, is localized under the outer envelope of serovar icterohaemorrhagiae. Hoe AIAB raised against the EDTA extract was not able to protect hamsters from lethal challenge with virulent homologous leptospires.

Production of chitin-glucan complex by Pichia pastoris

Dissertation for the Degree of Master in Biotechnology

Production of polyhydroxyalkanoates from cheese whey - pH effect on the acidogenic fermentation stage and nutrient needs of the culture selection stage

Dissertação para obtenção do Grau de Mestre em Biotecnologia

Production of bacterial biopolymers from industrial fat-containing wastes

Dissertation presented in partial fulfilment of the Requirements for the Degree of Master in Biotechnology

O estudo dos media na comunicação B2B, influências e desafios

Dissertação de Mestrado em Ciências da Comunicação, Área de Especialidade Estudo dos Media e do Jornalismo

Género e Media: estereótipos das masculinidades na publicidade das revistas masculinas em Portugal

Tese apresentada para cumprimento dos requisitos necessários à obtenção do grau de Doutor em Ciências da Comunicação

Interfaces for television content sharing and annotation

Dissertação para obtenção do Grau de Mestre em Engenharia Informática

Synthesis and characterization of sugar containing hydrophilic and hydrophobic polymers with potential application in medicine

Dissertation toobtaina Master of Science degree in Bioorganics

Biodiesel production from chicken feather meal, combining biocatalysis and supercritical technology

Dissertação para obtenção do Grau de Mestre em Biotecnologia

A representagão da delinquência juvenil nos media noticiosos: Estudo de caso do Público e do Correio da Manhã (1993-2003)

Mestrado em Ciências da Comunicação, variante Estudos dos Media e de Jornalismo

Frequency of Mycoplasma hominis and Ureaplasma urealyticum infections in women with systemic lupus erythematosus

Ureaplasma urealyticum (UU) and Mycoplasma hominis (MH) have been detected in the urine of women with systemic lupus erythematosus (SLE). We evaluated the presence of these mycoplasma in the endocervix of women presenting SLE. A total of 40 SLE patients (mean age 40.2 years), and 51 healthy women (mean age 30.9 years), were studied. Endocervical swabs were cultured in specific liquid media for MH or UU, detected by a quantitative color assay, and considered positive at >10³ dilutions. Statistical analysis was performed using the two-tailed Fisher test. UU was detected in 52.5 % of patients and in 11.8% of controls (p= 0.000059). MH was detected in 20% of patients and 2% controls (p=0.003905). Both mycoplasmas were detected in 7.3% patients and 0% controls (p<0.000001). The results reported here corroborate the association of the mycoplasma infection and SLE. Thus, these agents may stimulate the production of autoreactive clones.

Regulation and function of the cell wall polymer lipoteichoic acid in staphylococcus aureus

A thesis submitted for the Degree of Master in Medical microbiology