Doenças da bananicultura: mal-do-panamá.

No Brasil, esta doença foi oficialmente constatada no ano de 1930, no Município de Piracicaba, São Paulo, atacando principalmente a cultivar Maçã. Atualmente, a doença pode ser encontrada em praticamente quase todo o território nacional, atacando, na maioria das vezes, a cultivar Maçã. Dada sua ampla distribuição, esta doença merece especial atenção e vêm ganhando importância, tanto em nível nacional como no exterior, visto que relatos assinalam sua ocorrência em praticamente todas as áreas produtoras de banana, atingindo, inclusive, bananas do subgrupo Cavendish.bitstream/item/24671/1/ct86-maldopanama.pd

Doenças da bananicultura: sigatoca-amarela.

No Brasil, a sigatoca-amarela foi inicialmente detectada em 1935, na cidade de São Sebastião-SP, porém ganhou importância em 1944, no Amazonas. Atualmente, encontra-se disseminada por praticamente todo o país. Entretanto, a doença apresenta maior relevância nas regiões ou microregiões de clima úmido, com alta pluviosidade e temperaturas por volta dos 25 °C.bitstream/item/24670/1/ct85-sigatoca-amarela.pd

Recycling of tilapia carcass waste to obtain nanostructured biphasic calcium phosphate powder

Abstract In Brazil, a significant amount of tilapia carcass waste is produced every year. The aim of this study is to evaluate the recycling of tilapia carcass waste as an alternative calcium precursor to produce biphasic calcium phosphate (BCP) powder via a wet chemical precipitation method in different HNO3 concentrations. The synthesized powders were characterized by X-ray diffraction, scanning electron microscopy, thermogravimetric analysis, Fourier transform infrared spectroscopy, average crystallite size, and refinement by the Rietveld method for the quantification of crystalline phases. The experimental results indicated the formation of a BCP bioceramic with different amounts of β-calcium pyrophosphate (β-CPP) and β-tricalcium phosphate (β-TCP), depending on the HNO3 concentration. The new BCP powders showed an average crystallite size between 57.7 and 59.2 nm. Such a result suggests a possibility of friendly recycling of tilapia carcass waste for biomedical applications

Minimal 3-3-1 model, lepton mixing and muonium-antimuonium conversion

The recent experimental results on neutrino oscillation and on muonium-antimuonium conversion require extension of the minimal 3-3-1 model. We review the constraints imposed to the model by those measurements and suggest a pattern of leptonic mixing, with charged leptons in a non-diagonal basis, which accounts for the neutrino physics and circumvents the tight muonium-antimuonium bounds on the model. We also illustrate a scenario where this pattern could be realized.Comment: 4 pages; abbreviated version, conclusions unchange

Controle da podridão-da-haste-do-mamoeiro no Estado do Ceará.

Subsidiar os produtres de mamões do Estado, nesta publicação, fez-se uma descrição detalhada da podridão-da-haste, visando torná-la de fácil identificação por técnicos e produtores. Além disso, são apresentadas recomendações de controle da doença, preventiva e curativa, capaz de viabilizar a exploração de forma econômica, mesmo em caso de ocorrência da doença.bitstream/CNPAT/10574/1/cot_133.pd

Ocorrência e cultivares de bananeiras preferenciais da broca-gigante (Castnia licus) em Rondônia.

Avaliou-se as cultivares de bananeiras existentes no Campo Experimental de Porto Velho, com o objetivo de verificar a infestação pela praga Castnia licus, ordinariamente chamada de broca-gigante.bitstream/item/42534/1/Cot292-bananeira.pd

Valorization of fine wood dust waste to produce lightweight dense/porous bi-layered ceramic tile

Abstract The Brazilian wood furniture industry generates a significant amount of fine wood dust waste. In this work, a new lightweight dense/porous bi-layered ceramic tile was developed using fine wood dust waste as a substitute for ceramic tile paste by up to 10 wt% in the porous bottom layer. The bi-layered ceramic tile pieces were prepared by double uniaxial pressing and fired at 1235 ºC. The technical properties and sintered microstructure were investigated. The results showed that the fine wood dust waste acted as an effective pore-forming agent. The new bi-layered ceramic tiles showed good technical properties (water absorption=6.16-9.66% and flexural strength=18.10-28.74 MPa). The results also suggested that up to 10 wt% of fine wood dust waste can be valorized in the production of lightweight bi-layered ceramic tiles, which brings together the precepts for sustainable environmental management applications

Status of the solution to the solar neutrino problem based on non-standard neutrino interactions

We analyze the current status of the solution to the solar neutrino problem based both on: a) non-standard flavor changing neutrino interactions (FCNI) and b) non-universal flavor diagonal neutrino interactions (FDNI). We find that FCNI and FDNI with matter in the sun as well as in the earth provide a good fit not only to the total rate measured by all solar neutrino experiments but also to the day-night and seasonal variations of the event rate, as well as the recoil electron energy spectrum measured by the SuperKamiokande collaboration. This solution does not require massive neutrinos and neutrino mixing in vacuum. Stringent experimental constraints on FCNI from bounds on lepton flavor violating decays and on FDNI from limits on lepton universality violation rule out $\nu_e \to \nu_\mu$ transitions induced by New Physics as a solution to the solar neutrino problem. However, a solution involving $\nu_e \to \nu_\tau$ transitions is viable and could be tested independently by the upcoming $B$-factories if flavor violating tau decays would be observed at a rate close to the present upper bounds.Comment: 30 pages, 9 figures, Late