Resumo O mutum-de-penacho Crax fasciolata (Cracidae:Cracinae) é uma espécie ameaçada de extinção e foi considerada criticamente em perigo em 2008 no estado de São Paulo. As recomendações dos especialistas para a conservação da espécie no estado foram "a pesquisa por áreas onde poderia existir populações remanescentes e a proteção de remanescentes de floresta semidecidual". Neste trabalho, oito Unidades de Conservação foram investigadas em áreas com vegetação de Cerrado e de floresta semidecidual por meio de armadilhas fotográficas digitais para verificar a presença do mutum-de-penacho (Crax fasciolata). Entretanto, o mutum-de-penacho foi registrado apenas no Parque Estadual Furnas do Bom Jesus, que possui 2.069 ha, apesar do maior esforço amostral em áreas maiores, como a Estação Ecológica de Santa Bárbara (2.712 ha) e Estação Ecológica de Jataí (9.074),- a maior Unidade de Conservação do bioma Cerrado no estado de São Paulo. O registro do mutum-de-penacho no Parque Estadual Furnas do Bom Jesus é muito importante para o Plano de Ação e Conservação da família Cracidae e mostra a importância do monitoramento da biodiversidade e a conservação de remanescentes de vegetação nativa, mesmo pequenos, para a conservação dessa espécie.

Abstract The Bare-faced Curassow Crax fasciolata (Cracidae:Cracinae) is a vulnerable species that was classified as critically endangered by the São Paulo State -Brazil, in 2008. Specialists recommended "searches for areas where there may be a few remaining populations and protection of the last remaining semideciduous forest in the State". Protected areas were investigated in the Cerrado and semideciduous forest in São Paulo State by camera trapping to evaluate the presence of the Bare-faced Curassow. Eight protected areas in Cerrado biome were investigated, but the Bare-faced Curassows was recorded only at Furnas do Bom Jesus State Park (2,069 ha), São Paulo State despite the large sampling effort in larger protected areas such as the Santa Bárbara Ecological Station (2,712 ha) and Jataí Ecological Station (9,074 ha); the largest protected area of Cerrado biome in São Paulo State. This record of C. fasciolata is important for the Conservation Action Plan for the Cracid family and shows the importance of monitoring biodiversity and conserving even relatively small remnants of native vegetation for the conservation of this species.

This paper shows a study about the influence of type and number of sterilizations in the cutting ability of diamond points used in dentistry. As a result, the sterilization using the oven was the process, which didn't result in a decreasing in the cutting ability of the diamond points and, until the second sterilization, it resulted in a increasing of the cutting ability.

This work presents a proposal to assess the abrasive wear of composite resins available in the national market, which are materials largely used in dental clinics for functional and aesthetic tooth restorations. This was achieved by utilizing an experimental set-up on which a dynamic disc covered with proper porcelain (representing hardness close to the human teeth) wears a static disc covered with the resin tested under a constant and pre-determined load. Thus, by means of this set-up and keeping a behavioral status needed to the calculus for all tests, the aggressiveness (referred as to letter k) for all tests was analyzed. Due to the fact that resin characteristic revels how weary the material has become to the abrasion process with other harder material, the strength to wear for such resins was observed. Therefore, a real classification for these materials with their strength to the abrasion wear was made, which is a very important factor in the influence on their lifetime in dental restorations. The classification in descending order for those resins is presented as following: HELIOMOLAR RO, DURAFILL, FILTEK A110, HELIO FILL, POINT 4, FLOW IT; NATURAL FLOW, SUPRAFILL, FILTEK P60, FILTEK Z250, TETRIC FLOW, REVOLUTION, PRODIGY, TETRIC CERAM, HERCULITE, FILLMAGIC, TPH, CHARISMA, Z100.

This article discusses the development of a test bench and a methodology for the study of composite resin abrasive wear. To evaluate the operation of the test bench and to compare the proposed methodology with other existing ones, a study was made of the five composites most commonly used by dentists. The one-way ANOVA method and the Tukey test were used to statistically analyze the results by multiple comparisons of the groups of resins tested. Using the proposed methodology, these resins were classified in an increasing order of abrasive wear strength, as follows: Charisma (the lowest abrasive wear strength), Tetric, TPH, Herculite and Z-100 (the highest abrasive wear strength) (p < 0.05). In comparison to other methodologies, the results of the proposed methodology presented the lowest coefficient of variation.