Hydromorphic Soil, Topographic Depression and Vegetation Development History by Using 13c and 14c In Rondônia State (sw Brazilian Amazon)

13C e 14C obtidos da matéria orgânica do solo foram usados para diferenciar fases de flutuação da vegetação em transição floresta-savana. A região apresenta baixos platôs com depressões topográficas imperfeitamente drenadas na superfície. Na topossequência estudada foram analisados solos de cinco perfis localizados sob floresta (F), transição floresta-savana (S1), borda da depressão sob savana (S2) e centro da depressão sob savana (S3). Os valores de 13C e idades evidenciam que a ~ 200cm de profundidade, com idades entre ~ 12.000 e 10.000 A.P., valores de -27‰ a -27,7‰ indicam vegetação de floresta (C3) em todos os perfis. Na profundidade de 100 cm, com idades entre ~ 6.000 e 5.000 A.P., houve enriquecimento de – 20,2‰ a -22,3‰, indicando regressão da floresta e expansão da savana. Valores entre -15,9 e -18,7‰ a 50-60 cm, estimado entre ~ 4.700 a 3.800 A.P., sugere máxima expansão da vegetação C4 em resposta às condições climáticas mais secas, exceto no perfil S3 com valores mais empobrecidos (-20,9‰), sugerindo que na depressão, o desenvolvimento da hidromorfia possibilitou a presença de espécies de gramíneas C3 e C4 da savana em resposta as mudanças das condições ambientais.

Isolamento e seleção de fungos filamentosos termofílicos produtores de celulases, xilanases e celobiose desidrogenase com potencial para sacarificação do bagaço de cana-de-açúcar

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Resistência de união ao microcisalhamento de sistemas adesivos autocondicionates com graus de acidez distintos: efeito de diferentes tratamentos em substrato dentinário normal e hipermineralizado artificialmente

Pós-graduação em Ciências Odontológicas - FOAR

Two-year Clinical Performance of Self-etching Adhesive Systems in Composite Restorations of Anterior Teeth

Objective: The aim of this study was to evaluate the two-year clinical performance of Class III, IV, and V composite restorations using a two-step etch-and-rinse adhesive system (2-ERA) and three one-step self-etching adhesive systems (1-SEAs).Material and Methods: Two hundred Class III, IV, and V composite restorations were placed into 50 patients. Each patient received four composite restorations (Amaris, Voco), and these restorations were bonded with one of three 1-SEAs (Futurabond M, Voco; Clearfil S3 Bond, Kuraray; and Optibond All-in-One, Kerr) or one 2-ERA (Adper Single Bond 2/3M ESPE). The four adhesive systems were evaluated at baseline and after 24 months using the following criteria: restoration retention, marginal integrity, marginal discoloration, caries occurrence, postoperative sensitivity and preservation of tooth vitality. After two years, 162 restorations were evaluated in 41 patients. Data were analyzed using the chi(2) test (p<0.05).Results: There were no statistically significant differences between the 2-ERA and the 1-SEAs regarding the evaluated parameters (p>0.05).Conclusion: The 1-SEAs showed good clinical performance at the end of 24 months.

Distribuição de pausas na interpretação de atores

Introduction: The literature about the work with the voice of actors in the theater focuses the research on organic issues involved in the vocal process as “misuse” or “vocal abuse”. To a lesser amount, there are studies that highlight issues of interpretation and expressive resources, as well as others that highlight the linguistic resources of interpretation. This work shows a linguistic feature – the pause – and its collaboration for the theatrical interpretation. Objective: to verify the extent to which similarities and differences occur between the points judged as occurrence of pauses in interpretations of a theatrical text. Method: Subjects of this study were four theater actors, who played individually a same theatrical text. Later, a group of ten judges judged the points where pauses occurred. Based on a criterion of 70% agreement between judges, were searched similarities and differences between the points judged as pause of each recording. Results: the four subjects showed different amounts of pause in the stretch in common that they interpreted: S1= ten occurrences; S2= 14 occurrences; S3= 6 occurrences; and S4= 9 occurrences. In this inter-subject variation, five points of pause in common were detected. Conclusion: we have seen, then, that this variability (featuring subjectivity in interpretation) is built inside given possibilities, with lesser or greater flexibility, by the structure of the theatrical text.

Programa de capacitação de famílias de crianças, jovens e adultos usuários de comunicação alternativa

This study aimed to enter a training program for family members of children, youth and adults who use augmentative and alternative communication systems in the context of alternative languages . The study included families in the age group of 25-65 years in the period 2010- 2012. The activities were held weekly with duration of one hour in a alternative communication laboratory. All activities were videotaped and after that, the verbal participants’ reports were transcribed. The obtained categories were analyzed according to the steps of the program. The results indicated that families realized: the necessity of graphics systems for communication; the importance of adapted materials; and the need to understand their children’s different skills. The study reinforced the need for systematic and continuous guidance for families, as well as highlighted the use of graphics systems in the context of language.

A comparative evaluation of the CF:CS and CRS models in Pb-210 chronological studies applied to hydrographic basins in Brazil

The Constant Flux: Constant Sedimentation (CF:CS) and Constant Rate of Supply (CRS) of unsupported/excess Pb-210 models have been applied to a Pb-210 data set providing of eighteen sediments profiles sampled at four riverine systems occurring in Brazil, South America: Corumbatai River basin (S1=Site 1, Sao Paulo State), Atibaia River basin (S2=Site 2, Sao Paulo State), Ribeirao dos Bagres basin (S3=Site 3, Sao Paulo State) and Amazon River mouth. (S4=Site 4, Amapa State). These sites were chosen for a comparative evaluation of the performance of the CF:CS and CRS models due to their pronounced differences on the geographical location, geological context, soil composition, biodiversity, climate, rainfall, and water flow regime, among other variable aspects. However, all sediments cores exhibited a common denominator consisting on a database built from the use of the same techniques for acquiring the sediments major chemical composition (SiO2, Al2O3, Na2O, K2O, CaO, MgO, Fe2O3, MnO, P2O5, TiO2 and LOI-Loss on Ignition) and unsupported/excess 210Pb activity data. In terms of sedimentation rates, the performance of the CRS model was better than that of the CF:CS model as it yielded values more compatible with those expected from field evidences. Under the chronological point of view, the CRS model always provided ages within the permitted range of the Pb-210-method in the studied sites, whereas the CF:CS model predicted some values above 150 years. The SiO2 content decreased in accordance with the LOI increase in all cores analyzed and such inverse relationship was also tracked in the SiO2-LOI curves of historical trends. The SiO2-LOI concentration fluctuations in sites S1 and S3 also coincided with some Cu and Cr inputs in the drainage systems. (C) 2014 Elsevier Ltd. All rights reserved.

O papel da serapilheira no desenvolvimento inicial de mudas de espécies florestais nativas

A serapilheira de matas e florestas é rica em matéria orgânica e responsável pela ciclagem de nutrientes que ocorre neste ecossistema. Além de atuar como protetora do solo e habitat para diversos microrganismos e insetos. O presente estudo buscou analisar o papel da serapilheira no desenvolvimento de mudas florestais nativas em viveiros. As espécies utilizadas no experimento foram Parapitadenia rigida (Benth) (angico-vermelho), Acacia polyphylla DC. (monjoleiro), Lonchocarpus muehlbergianus Hassl. (embira-de-sapo) e Schizolobium parahyba (Vell.)S.F.Blake (guapuruvu). O crescimento foi analisado em quatro substratos: mineral (S1), mineral com serapilheira na proporção de volume 1:1 (S2), orgânico usado em viveiros (S3) e orgânico usado em viveiros com serapilheira na proporção de volume 1:1 (S4). O delineamento experimental consistiu em blocos ao acaso com 16 tratamentos e 5 repetições. Durante uma primeira fase foram feitas as medições de altura e diâmetro das mudas em fase de viveiro. A segunda fase foi a análise da biomassa seca e avaliação da sobrevivência inicial em campo. O resultado apresentou melhores desempenhos no crescimento e sobrevivência nos tratamentos com serapilheira em comparação aos sem serapilheira. Podemos concluir que a serapilheira apresenta potenciais benéficos relevantes para a produção de mudas florestais

Incorporação do trans-resveratrol em sistemas nanoestruturados: avaliação das ações antioxidante e despigmentante in vitro

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Efeito do tipo de adesivo e do seu mecanismo de ativação, assim como da viscosidade da resina composta, na resistência de união à dentina antes e após envelhecimento artificial

Pós-graduação em Odontologia Restauradora - ICT

Desenvolvimento, caracterização e ação anti-biofilme oralde sistemas nanoestruturados bioadesivos contendo o peptídeo KSL-W

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Rietveld refinement, cluster modelling, growth mechanism and photoluminescence properties of CaWO4: Eu3+ microcrystals

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

Superstring theory on AdS2 × S2 as a coset supermanifold

We quantize the superstring on the AdS2 × S2 background with Ramond-Ramond flux using a PSU(1,1\2)/U(1) × U(1) sigma model with a WZ term. One-loop conformal invariance of the model is guaranteed by a general mechanism which holds for coset spaces G/H where G is Ricci-flat and H is the invariant locus of a ℤ4 automorphism of G. This mechanism gives conformal theories for the PSU(1,1\2) × PSU(2\2)/SU(2) × SU(2) and PSU(2,2\4)/SO(4,1) × SO(5) coset spaces, suggesting our results might be useful for quantizing the superstring on AdS3 × S3 and AdS5 × S5 backgrounds. © 2000 Elsevier Science B.V. All rights reserved.