Foram analisados clones de Eucalyptus de última geração, pertencentes às principais empresas brasileiras de celulose. Os estudos consistiram numa caracterização tecnológica detalhada da qualidade das madeiras utilizadas no processamento fabril das empresas. Foram realizadas análise químicas detalhadas das madeiras e cozimentos kraft, simulando-se uma das modernas técnica de digestor contínuo. Os resultados indicaram a alta qualidade dos clones de Eucalyptus atualmente plantados no Brasil para produção de celulose.

Real-time systems need time-predictable platforms to allow static analysis of the worst-case execution time (WCET). Standard multi-core processors are optimized for the average case and are hardly analyzable. Within the T-CREST project we propose novel solutions for time-predictable multi-core architectures that are optimized for the WCET instead of the average-case execution time. The resulting time-predictable resources (processors, interconnect, memory arbiter, and memory controller) and tools (compiler, WCET analysis) are designed to ease WCET analysis and to optimize WCET performance. Compared to other processors the WCET performance is outstanding.The T-CREST platform is evaluated with two industrial use cases. An application from the avionic domain demonstrates that tasks executing on different cores do not interfere with respect to their WCET. A signal processing application from the railway domain shows that the WCET can be reduced for computation-intensive tasks when distributing the tasks on several cores and using the network-on-chip for communication. With three cores the WCET is improved by a factor of 1.8 and with 15 cores by a factor of 5.7.The T-CREST project is the result of a collaborative research and development project executed by eight partners from academia and industry. The European Commission funded T-CREST.

SUMMARYVisTrails is a new workflow and provenance management system that provides support for scientific data exploration and visualization. Whereas workflows have been traditionally used to automate repetitive tasks, for applications that are exploratory in nature, change is the norm. VisTrails uses a new changebased provenance mechanism, which was designed to handle rapidly evolving workflows. It uniformly and automatically captures provenance information for data products and for the evolution of the workflows used to generate these products. In this paper, we describe how the VisTrails provenance data are organized in layers and present a first approach for querying this data that we developed to tackle the Provenance Challenge queries.

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RESUMOO presente estudo avaliou o potencial de reaproveitamento energético dos resíduos de madeira e seus derivados gerados no Polo Moveleiro de Ubá, MG. Painéis reconstituídos de MDF (medium density fiberboard), aglomerado e compensado foram caracterizados e classificados, identificando assim as oportunidades e possíveis limitações quanto à sua utilização. Por meio de diagnóstico realizado em 11 fábricas de móveis, verificou-se que os resíduos de madeira compreendem mais de 90 % do total dos resíduos sólidos gerados. Além da grande quantidade gerada, não foi identificada nenhuma ação integrada entre as fábricas do Polo para o adequado gerenciamento dos resíduos, negligenciando seus riscos ambientais e sanitários, bem como seu potencial energético. Contudo, os teores de umidade e poder calorífico dos resíduos demonstraram potencial para o seu reaproveitamento energético através da produção de briquetes. Os gases gerados em ensaios de combustão dos resíduos não apresentaram substâncias ou compostos tóxicos acima dos limites preconizados pelas normas ambientais, verificando, neste aspecto, um bom desempenho ambiental para o aproveitamento destes resíduos conforme proposto pelo presente estudo. Entretanto, as cinzas dos resíduos de aglomerado BP (baixa pressão) e FF (finish foil) apresentaram elevadas concentrações de cromo, enquadrando-se como Classe I (perigosos), segundo a ABNT/NBR 10004/2004. Palavras-chave: fábricas de móveis; resíduos de madeira; aproveitamento energético. ABSTRACTThe present study evaluated the energy reuse potential of the wooden residues and its derivatives generated in the industrial furniture stave of Ubá, Minas Gerais state, Brazil. Reconstituted panels of MDF (medium density fiberboard), particleboards and plywood were characterized and classified. A research carried out in 11 furniture plants verified that the wooden residues represent more than 90 % of the solid wastes. Besides of this the large amount generated, no integrated action was identified to the management of the residues, neglecting its environmental and sanitary risks, as well as its energy use potential. However, the moisture and calorific power of the residues demonstrated a high potential energy use through the

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Recent studies have suggested that human pegivirus 1 (HPgV-1) may have some pathogenic potential. In the southernmost region of Brazil, studies on HPgV-1 are scarce, and circulating genotypes have not yet been identified. The current study aimed to evaluate the prevalence of HPgV-1 among blood donors from the southernmost region of Brazil and identify the genotypes involved with associated factors. A cross-sectional study was conducted with 281 blood donors, who had their plasma subjected to RNA extraction, complementary DNA synthesis, HPgV-1 detection by nested polymerase chain reaction, and subsequent genotyping. The observed prevalence of HPgV-1-RNA was 21.7%. The only variable that was significantly associated with virus infection was the relationship status of the donor. Single or no fixed partner blood donors were twice as likely to have HPgV-1 (95% CI, 1.12 to 4.56; P = 0.02). Genotype 2-subtypes 2b (69%) and 2a (29%)-was the most prevalent. In the absence of risk factors for parenteral transmission, it is likely that sexual transmission was the route of infection in the individuals studied. Further work will be needed to determine whether this virus is inert in the population, or if there are potential deleterious effects in infected individuals.

Previous studies have demonstrated that coinfection with HPgV is a protective factor for human immunodeficiency virus (HIV)-infected patients, leading to slower disease progression, and longer survival after established disease. The present study sought to estimate the prevalence of HPgV infection and associated risk factors in patients harboring C or non-C HIV-1 subtypes followed-up at HU-FURG, southern Brazil. Samples from 347 HIV-1-infected subjects were subjected to plasma RNA extraction, cDNA synthesis, HPgV RNA detection, and HIV-1 genotyping. The overall prevalence of HPgV RNA was 34%. Individuals aged 18-30 years had higher chances of infection compared with those 50 years or older (95%CI 1.18-52.36, P = 0.03). The number of sexual partner between one and three was a risk factor for HPgV infection (95%CI 1.54-10.23; P < 0.01), as well as the time since diagnosis of HIV-1 ≥ 11 years (95%CI 1.01-2.89; P = 0.04). Patients infected with HIV non-C subtypes had six times more chance of being HPgV-infected when compared to subtype C-infected subjects (95%CI 2.28-14.78; P < 0.01). This was the first study conducted in southern Brazil to find the circulation of HPgV. HIV/HPgV coinfection was associated with a longer survival among HIV patients. Of novelty, individuals infected by HIV non-C subtypes were more susceptible to HPgV infection. However, additional studies are needed to correlate the HIV-1 subtypes with HPgV infection and to clarify cellular and molecular pathways through which such associations are ruled. J. Med. Virol 88:2106-2114, 2016. © 2016 Wiley Periodicals, Inc.