Evaluation of the physical and chemical properties of two commercial and three experimental root-end filling materials

Objective. The aim of this study was to evaluate the pH, calcium release, setting time, and solubility of two commercially available mineral trioxide aggregate (MTA) cements (white MTA Angelus and MTA Bio), and of three experimental cements (light-cured MTA, Portland cement with 20% bismuth oxide and 5% calcium sulfate, and an epoxy resin-based cement).Study design. For evaluation of pH and calcium ion release, polyethylene tubes with 1.0 mm internal diameter and 10.0 mm length were filled with the cements and immediately immersed in flasks containing 10 mL deionized water. After 3, 24, 72, and 168 hours, the tubes were removed and the water from the previous container was measured for its pH and calcium content with a pH meter and an atomic absorption spectrophotometer. For analysis of the setting time, Gilmore needles weighing 100 g and 456.5 g were used, in accordance with the American Society for Testing and Materials specification no. C266-03. Solubility of each cement was also tested.Results. All the cements were alkaline and released calcium ions, with a declining trend over time. After 3 hours, Portland cement + bismuth oxide and MTA Bio had the highest pH and light-cured MTA the lowest. After 1 week, MTA Bio had the highest pH and light-cured MTA and epoxy resin-based cement the lowest. Regarding calcium ion release, after 3 hours, Portland cement + bismuth oxide showed the highest release. After 1 week, MTA Bio had the highest. Epoxy resin-based cement and light-cured MTA had the lowest calcium release in all evaluation periods. Regarding setting times, white MTA Angelus and MTA Bio had the shortest, Portland cement + bismuth oxide had an intermediate setting time, and the epoxy resin-based cement had the longest. The materials that showed the lowest solubility values were the epoxy resin-based cement, Portland cement + bismuth oxide, and light-cured MTA. The highest solubility values were presented in white MTA Angelus and MTA Bio.Conclusions. The white MTA Angelus and MTA Bio had the shortest setting times, higher pH and calcium ion release, and the highest solubility. In contrast, the epoxy resin-based cement and light-cured MTA showed lower values of solubility, pH, and calcium ion release. (Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2010; 110: 250-256)

A new species of Symbra (Hymenoptera, Eurytomidae, Heimbrinae) from dry forest in Brazil and new occurrence records for other Heimbrinae

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Dicionário terminológico bilíngüe francês-português de termos jurídicos: tratamento terminográfico e reflexões sobre terminologia bilíngüe

Pós-graduação em Estudos Linguísticos - IBILCE

A cultura brasileira de Darcy Ribeiro em língua inglesa: um estudo da tradução de termos e expressões de antropologia da civilização

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

SW-V: modelo de streaming de software baseado em técnicas de virtualização e transporte peer-to-peer

Pós-graduação em Ciência da Computação - IBILCE

Epidemiologia genética em hanseníase: estudo de associação da região genômica candidata 6p21 e do gene TLR1

Pós-graduação em Doenças Tropicais - FMB

A língua kaingáng da aldeia paulista Icatu: uma descrição funcional

Pós-graduação em Estudos Linguísticos - IBILCE

Investigando o uso de marcadores culturais presentes em quatro obras amadeanas, traduzidas para o inglês

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Estudo taxonômico de Leptogium (ACH.) S.F. Gray (Collemataceae, fungos liquenizados)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Visão geográfica integrada das estratégias de controle das leishmanioses no município de Teodoro Sampaio, SP, com o apoio do geoprocessamento

Pós-graduação em Geografia - FCT

Diagnóstico, tratamento e seguimento do carcinoma medular de tireoide: recomendações do Departamento de Tireoide da Sociedade Brasileira de Endocrinologia e Metabologia

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Enquanto isso na Sociedade de Consumo Líquido-Moderna: a produção de significados e a tomada de decisão de indivíduos-consumidores

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

A tradução para o inglês do léxico tabuizado no universo erótico mairum: um estudo baseado no corpus da obra Maíra de Darcy Ribeiro

The main purpose of this paper is to observe the Portuguese into English translational process regarding the metaphors of specific lexical units related to erogenous zones and to intercourse in the context of the literary work Maira (1978), written by Darcy Ribeiro, as well as in its translation, Maíra (1985), performed by Goodland e Colchie. We based our study on an interdisciplinary proposal that associates the theoretical framework of Lexical Studies (BIDERMAN, 1996; LAKOFF; JOHNSON, 2002; ORSI, 2007, 2009; ORSI; ZAVAGLIA, 2007; 2012; PRETI, 1984; XATARA; RIVA; RIOS, 2002; XATARA, 2004), Corpus-Based Translation Studies (BAKER, 1993, 1995; CAMARGO, 2005), Corpus Linguistics (TYMOCZKO, 1998; BERBER SARDINHA, 2004), and, in part, Terminology (COELHO, 2003; BARROS, 2004; FAULSTICH, 2004). Concerning the methodology, we used the program WordSmith Tools, which provided the tools WordList and Concord, for collection and observation of data. We thus verified the value attributed to the erotic-obscene lexicon in Darcy Ribeiro’s literary-textual construction, and we also analyzed the reformulation of taboo lexicon in English. Finally, we intended to reflect on the process of translation of these lexical units considered socially disreputable, in an attempt to provide a possible support fortranslators, linguists, writers and social scientists.

Influência da temperatura de armazenamento na qualidade das inflorescências de estrelítzia (strelitzia reginae banks ex aiton)

This work was based to study the influence of the storage temperature (cold and room temperature) in the quality of inflorescences strelitzia. The scapes were selected, labeled and there were zero problems concerning mechanical damage, disease and/or plagues. Subsequently this period, the scapes were moved randomly to recipients with water, in which two postharvest trials were conducted. In experiment 1, the flower scapes were placed in buckets with water from public supply and sanitation department and taken to a cold room at temperature of 7.5 degrees C and RH of 90%, for a twelve day period. For the experiment 2, were kept under the same conditions but at room temperature for a period of six days. In both experiments, the visual analysis: color, gloss, stains (by assigning notes), opening and drop florets (count) were evaluated at intervals of four days in cold and every 48 hours at ambient temperature conditions. In both experiments, the visual analysis: color, gloss, stains (by assigning notes), opening and drop florets (count) were evaluated at intervals of four days in cold and every 48 hours at ambient temperature conditions. The sepal is the organ that showed greater loss in coloration. The variable gloss showed the same pattern for the two experiments. Incidences of stains on the inflorescences occurred in patches at room temperature. The scapes increased number of florets open in cold. This tendency did not occur at room temperature. No were observed differences in the fall of florets. Conclude that the storage temperature does not contribute to postharvest quality of strelitzia.