Fronteiras da crença: da libertação ao carisma, a presença católica na cidade de Juina (1978-1998)

Pós-graduação em História - FCLAS

Religiosidade e mito na obra de José Carlos Mariátegui e a teologia da libertação

Pós-graduação em Ciências Sociais - FCLAR

Preparation and evaluation of an experimental luting glass ionomer cement to be used in dentistry

The aim of this paper is to compare the fluoride-releasing and mechanical properties of an experimental luting glass ionomer cement, which has a modified composition and a commercial luting cement. The experimental powder was obtained by sol-gel process and then, it was used to prepare the experimental cements. The properties of cement pastes, such as setting time and working time, microhardness and diametral tensile strength were determined. Fluoride release from GICs was evaluated at time intervals of 1, 7, 14, 21 and 28 days in deionized water. Atomic force microscopy (AFM) analyses showed that the surface of the experimental cements is more homogeneous than commercial GICs. The mechanical properties and the measure of liberation of fluoride of the two cements were influenced by ratio powder:liquid and chemical composition of the precursor powders. Experimental cements released less fluoride than commercial cements. However, this liberation was more constant during the analyzed period. Thus, the results obtained in this study indicated that the composition of the experimental powder modified by the niobium can lead the formation of the polysalt matrix with good mechanical properties. In other words, we can say that experimental powder offered considerable promise for exploitation in dental field.

De uma cultura política à Teologia da Liberação: as cartas do cárcere de Frei Betto e a ditadura civil-militar no Brasil

Pós-graduação em História - FCLAS

Aggiornamento católico e teologia da libertação no Brasil e no México: um estudo histórico-comparativo entre a revista de Cultura Vozes e a revista Christus (1966-1980)

Pós-graduação em História - FCLAS

Geologia e Caracterização Tecnológica do Minério de Manganês da Mina Córrego do Cocho, Itapira (SP)

The objects of this study are three manganese ore deposits and one mine derived from lateritic weathering of gondites (spessartine quartzites). These deposits are associated with Mn-rich garnet metasediments of the Itapira Group (Paleoproterozoic) and the reserves were estimated at approximately 2.0 × 10 6 tons with an average grade of 23% MnO 2. The ore minerals are cryptomelane, pyrolusite, lithiophorite, spessartine and psilomelane. Several crystal shapes and textural characteristics were identifi ed in this study, which are related to the degree of liberation, as confi rmed by heavy media separation method. In this study, we determined the main characteristics of the liberation of manganese, which is concentrated in the fi ne grain-size fraction and is lost during ore dressing. Therefore, the low average content of MnO 2 (28%) is due to this loss, whereas at grain size of minus 0.074 mm, contents near 40% MnO 2 were observed. This suggests that the ore can be used for manufacturing manganese sulphate fertilizers. A comparative study with the ore deposits located at Ouro Fino (MG), mainly with the Caneleiras mine, showed that higher degree of liberation occurs in the coarse grain-size fractions (0.84 to 0.074 mm with MnO 2 content of 38%). As a consequence, the ore can be used for manufacturing Fe-Si-Mn alloys.

A constituição do sujeito em contextos de privação de liberdade

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

A Renovação Carismática Católica, através do Seminário de Vida no Espírito Santo-Adamantina - (1997-2003)

Pós-graduação em História - FCLAS

Amílcar Cabral e a independência da Guiné Bissau e Cabo Verde

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Diamantina: cenário do primeiro diário escrito por uma mulher no Brasil - minha vida de menina de Helena Morley

The first diary written by a woman, Minha vida de menina brings a description of the ordinary daily live and the peaceful live of Diamantina, of the rural Minas Gerais. Helena Morley, a teenager of the end of 19th century, presents us from the crazy city, to issues of liberation of the slaves. The vision world of the young narrator also provides an idea of how the women role has changed in our society.

Música, mídia e identidade nacional na Guiné-Bissau: da revolução armada à independência

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Religião, política e eleições na Folha Universal

The Folha Universal, newspaper produced by the Igreja Universal do Reino de Deus (Iurd, abbreviation in Portuguese for Universal Church of the Kingdom of God), reaches an average weekly circulation from 2.5 to 3.5 million copies. Studies indicate that the Folha Universal is not merely an institutional newspaper. It is systematically dedicated to be a source of political information to their readers, in order to publicize candidates and politicians who defend the Iurd’s proposals for the Brazilian public life. This paper describes results of an empirical study on the frames built by the Folha Universal about the social demands, economic and political governance considered as priorities to the public management by the Iurd around five themes of analysis: public safety; children and adolescents care; public health; environment; politics and economy. The results indicate that, as characteristics of the Folha Universal in the four months prior to the 2010 Brazilian elections, aspects that differ from those indicated by previous studies on the newspaper. Previously detected in the pages of Folha Universal as a mean for finding solutions to social problems, the theology of prosperity was in our sample replaced by the formulation of public policies.

Sporothrix schenckii lipid inhibits macrophage phagocytosis: Involvement of nitric oxide and tumour necrosis factor-alpha

The role of cell-wall compounds in the immune response to sporotrichosis is unknown. The effect of cell-wall compounds and exoantigen obtained from Sporothrix schenckii in macrophage/fungus interaction was analysed with respect to nitric oxide (NO) and tumour necrosis factor-alpha (TNF-alpha). The lipid compound of the cell wall plays an important role in the pathogenesis of this mycosis and was found to inhibit the phagocytic process and to induce high liberation of NO and TNF-alpha in macrophage cultures in the present study. This is a very interesting result because it is the first report about one compound of the fungus S. schenckii that presents this activity.

Cytotoxicity of chlorhexidine digluconate to murine macrophages and its effect on hydrogen peroxide and nitric oxide induction

Chlorhexidine, even at low concentrations, is toxic for a variety of eukaryotic cells; however, its effects on host immune cells are not well known. We evaluated in vitro chlorhexidine-induced cytotoxicity and its effects on reactive oxygen/nitrogen intermediate induction by murine peritoneal macrophages. Thioglycollate-induced cells were obtained from Swiss mice by peritoneal lavage with 5 ml of 10 mM phosphate-buffered saline, washed twice and resuspended (10(6) cells/ml) in appropriate medium for each test. Cell preparations contained more than 95% macrophages. The cytotoxicity was determined by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-tetrazolium bromide assay and the presence of hydrogen peroxide (H2O2) and nitric oxide (NO) by the horseradish peroxidase-dependent oxidation of phenol red and Griess reaction, respectively. The midpoint cytotoxicity values for 1- and 24-h exposures were 61.12 ± 2.46 and 21.22 ± 2.44 µg/ml, respectively. Chlorhexidine did not induce synthesis or liberation of reactive oxygen/nitrogen intermediates. When macrophages were treated with various sub-toxic doses for 1 h (1, 5, 10, and 20 µg/ml) and 24 h (0.5, 1, and 5 µg/ml) and stimulated with 200 nM phorbol myristate acetate (PMA) solution, the H2O2 production was not altered; however, the NO production induced by 10 µg/ml lipopolysaccharide (LPS) solution varied from 14.47 ± 1.46 to 22.35 ± 1.94 µmol/l and 13.50 ± 1.42 to 20.44 ± 1.40 µmol/l (N = 5). The results showed that chlorhexidine has no immunostimulating activity and sub-toxic concentrations did not affect the response of macrophages to the soluble stimulus PMA but can interfere with the receptor-dependent stimulus LPS.