962 resultados para 51-GC43


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We prepared a W/WO3/TiO2 bicomposite photoanode by simple electrochemical anodization of W foil, followed by cathodic electrodeposition of TiO2 and annealing at 450 C for 30 min. This photoanode shows good photoactivity under irradiation with UV and visible light. In optimized conditions, it promotes complete photoelectrocatalytic oxidation of 3.33 × 10-5 mol L-1 basic red 51 solution (which is used in hair dye) at 0.1 mol L-1 Na2SO4, pH 2.0, under a current density of 1.25 mA cm-2 and ultraviolet and visible radiation-total organic carbon removal is 94 and 88%, respectively. This effect paves the way for the sustainable solar-assisted remediation of water bodies contaminated with organic components of hair dyes. © 2013 Elsevier Ltd. All rights reserved.

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Pós-graduação em Ciências Biológicas (Microbiologia Aplicada) - IBRC

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Social Cohesion: Inclusion and a Sense of Belonging in Latin America and the Caribbean Fiscal Policy in Boom Times Op-ed by ECLAC's Executive Secretary, José Luis Machinea: For Latin America and the Caribbean, a Time of Opportunities and Threats Highlights: eLAC2007 Regional Action Plan: New Regional Group Works for an Inclusive Information Society. By Marta Maurás, Secretary of the Commission, ECLAC Indicators Corporate Governance, Social Responsibility and Business Strategies in Latin America Recent titles Calendar of events

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Cohesión Social: Inclusión y sentido de pertenencia en América Latina y el Caribe La política fiscal en tiempos de bonanza América Latina y el Caribe vive un tiempo de amenazas y de oportunidades. Columna de opinión de José Luis Machinea, Secretario Ejecutivo de la CEPAL Precisiones. Una 'nueva' concertación regional para una Sociedad de la Información inclusiva: El Plan de Acción Regional eLAC2007. Por Marta Maurás, Secretaria de la Comisión, CEPAL Indicadores Gobernabilidad corporativa, responsabilidad social y estrategias empresariales en América Latina Publicaciones recientes Calendario de eventos

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A prospective clinical study of maxillary sinus lift procedures in the posterior region of the maxilla, using only blood clot as filling material, was conducted. Seventeen patients underwent a maxillary sinus lift procedure; 20 maxillary sinus regions were operated on and a total of 25 implants were placed. The sinus mucosa was lifted together with the anterior wall of the osteotomized maxilla and supported by the implants placed. Computed tomography (CT) scans were obtained immediately postoperative (T-initial) and at 3 (T-1) and 51(T-2) months postoperative for the measurement of linear bone height and bone density (by grey tones). Only one implant was lost in the first stage (96% success). After dental prosthesis placement and during up to 51 months of follow-up, no implant was lost (100% success, second stage). The difference in mean bone height between T-initial (5.94 mm) and T-1 (13.14 mm), and between T-initial and T-2 (11.57 mm), was statistically significant (both P < 0.001); comparison between T-1 and T-2 also presented a statistical difference (P < 0.001). Bone density had increased at the end of the period analyzed, but this was not statistically significant (P > 0.05). Thus, the maxillary sinus lift technique with immediate implant placement, filling with blood clot only, may be performed with a high success rate.

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This study aims to test a new conceptual model based on the relationship between quality management (QM), environmental management maturity (EMM), adoption of external practices of green supply chain management (GSCM) (green purchasing and collaboration with customers) and green performance (GP) with data from 95 Brazilian firms with ISO 14001. To our knowledge, such links and relationships are not simultaneously identified and tested in the literature. The results indicate the validation of all of the research hypotheses. This paper highlights that an improvement in green performance will require attention to quality management, environmental management maturity, and green supply chain.

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Boletim elaborado pela Assessoria de Comunicação e Imprensa da Reitoria da UNESP

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Revista elaborada pela Assessoria de Comunicação e Imprensa da Reitoria da UNESP

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The Second Baptist Church, Kershaw, SC Records consist of photocopies of the church’s records including minutes, membership lists, and financial records relating to the day-to-day operation and business of the church.