Rediscovery of Bothynus cribrarius (Fairmaire) (Coleoptera, Melolonthidae, Dynastinae, Pentodontini): description of the male and precise location data

AbstractBothynus cribrarius (Fairmaire) was rediscovered after studying the MNRJ and FIOC collections. The male is described and illustrated for the first time. Accurate location data is presented after 130 years since its species description

A comparative study of optical character recognition in health information system

MHealth Institutes are transitioning between documents in physical format and digital format. It is pertinent and important to develop applications that helps health professionals on this transition. An application that would aid the process of digitalization of documents was developed using a Python library. To help with the decision of which library to use, a study was made regarding the precision and speed of execution of PyOCR, PyTesseract and TesseOCR.FCT - Fundação para a Ciência e a Tecnologia (undefined

Evaluation of composts and liming materials in the phytostabilization of a mine soil using perennial ryegrass

A microcosm experiment was carried out to evaluate the effects of municipal solid waste compost (MSWC) or garden waste compost (GWC), and liming materials in the rehabilitation of a soil affected by mining activities, and to study the use of perennial ryegrass (Lolium perenne L.) for phystostabilization. The performance of the amendments was assessed by soil chemical parameters, total and bioavailable metals (Cu, Pb and Zn), soil enzymatic activities, and plant relative growth and mineral composition. In general, both composts corrected soil acidity and increased the total organic matter content of the soil, although with a better performance in the case of MSWC, especially when considering total N and available P and K levels in the amended soil. The application of both composts and liming materials led to a decrease in the mobile fractions of Cu, Pb and Zn, but mobilisable fractions of Cu and Zn increased with MSWC application. Plant biomass increased more than three times in the presence of 50 Mg MSWC ha−1 and with the combined use of 25 or 50 Mg MSWC ha−1 and CaO, but no significant differences were observed when GWC was applied. Plant tissue analysis showed that the treatments did not significantly reduce Cu, Pb and Zn uptake by the plant. Dehydrogenase, and the enzymes related to the N-cycle, urease and protease, had increased activities with increasing MSWC application rate. Conversely, the enzymatic activities of both enzymes related to the C-cycle, cellulase and β-glucosidase, were only positively affected by GWC application, a compost obtained from raw materials rich in C. Principal component analyses evidenced this clear separation between the effect of MSWC on soil enzymes related to the N-cycle and of GWC on soil enzymes related to the C-cycle. This study indicates that MSWC (50 Mg ha−1, limed or unlimed) can be used successfully in the remediation of a highly acidic metal-contaminated soil, allowing the establishment of perennial ryegrass

Organic residues as immobilizing agents in aided phytostabilization: (I) Effects on soil chemical characteristics

A greenhouse experiment was conducted to evaluate the effect of three different organic residues, sewage sludge (SS), municipal solid waste compost (MSWC), and garden waste compost (GWC), as immobilizing agents in aided phytostabilization of a highly acidic metal-contaminated soil, affected by mining activities, using perennial ryegrass (Lolium perenne L.). The organic residues were applied at 25, 50 and 100 Mg ha 1 (dry weight basis), and their effects on soil chemical characteristics and on relative plant growth and metal concentrations were assessed. All the organic residues tested immobilized Cu, Pb and Zn, decreasing their mobile fractions. This was corroborated by negative correlations obtained between mobile Cu, Pb and Zn and other soil chemical characteristics, which rose as a consequence of the amendments applied (i.e., pH, electrical conductivity, organic matter, nitrogen content, available P and available K), and by the multivariate exploratory techniques performed that showed an inverse correlation between these groups of variables. The greatest increase in ryegrass relative growth (more than three times) was obtained in the presence of 50 Mg MSWC ha 1, followed by SS at the same application dosage. GWC did not contribute to an increase in shoot growth, due to its small capacity to correct soil acidity and to supply essential macronutrients (N, P, K). No extractant was able of demonstrating by a linear correlation the uptake of Cu, Pb and Zn by ryegrass. This plant was therefore not a good ‘‘indicator” of Cu, Pb and Zn availability in the soil. The results obtained in this study suggest that ryegrass can be used in aided phytostabilization for this type of mine contaminated soils and that MSWC, and to a minor extent SS, applied at 50 Mg ha 1, were effective in the in situ immobilization of metals, improving soil chemical properties and leading to a large increase in plant biomas

Evaluation of tests to assess the quality of mine-contaminated soils

An acid metal-contaminated soil from the Aljustrel mining area (a pyrite mine located in SW Portugal in the Iberian Pyrite Belt) was subjected to chemical characterisation and total metal quantiWcation (Cd, Cr, Cu, Ni, Pb and Zn). Water-soluble metals were determined and a sequential extraction procedure was used to investigate metal speciation. Two bioavailable metal fractions were determined: a mobile fraction and a mobilisable fraction. Soil ecotoxicity was studied using a battery of bioassays: plant growth test and seed germination with cress (Lepidium sativum L.), earthworm (Eisenia fetida) mortality, E. fetida avoidance behaviour, luminescent inhibition of Vibrio Wscheri and Daphnia magna immobilisation. Although the total content of Cu, Zn and Pb in the soil was large (362, 245 and 1,250 mg/ kg dry matter, respectively), these metals were mostly structurally bound (87% for Cu, 81% for Zn and 89% for Pb) and, therefore, scarcely bioavailable. Nonetheless, the D. magna immobilization test using soil leachate showed an EC50 (48 h) of 36.3% (v/v), and the luminescent inhibition of V. Wscheri presented an EC20 (15 min) of 45.2% and an EC20 (30 min) of 10.7% (v/v), suggesting a considerable toxic eVect. In the direct exposure bioassays, E. fetida avoided the mine soil at the highest concentrations (50%, 75% and 100% v/v). At the same soil concentrations, cress showed negligible growth. The results suggest the need to use a battery of toxicity tests, in conjunction with chemical methods, in order to assess the quality of mine-contaminated soils correctly

Diretrizes para gestão de suprimentos: análise do panorama da função compras na construção civil de uma capital Amazônica

Este artigo tem como objetivo a apresentação de um conjunto de diretrizes relacionadas ao panorama da gestão da cadeia de suprimentos (SCM), com ênfase à função compras, em pequenas, médias e grandes empresas da indústria da construção civil na cidade de Belém, localizada na Amazônia Brasileira. Para tanto, adotou conceitos teóricos relacionados à estrutura da área, seus processos, desempenho e tendências. A realização da investigação, tem como referência metodológica central um relevante estudo nacional em gestão de suprimentos, utilizando-se como ferramenta para coleta de dados um questionário fechado, em formato eletrônico, tipo survey. Constatou-se que quase a metade das empresas (44%) sequer utilizam-se da SCM em suas compras, que mais de 1/3 (36%) sofrem com atrasos muito significativos nas entregas e que a grande maioria busca a diversificação de fornecedores (92%), melhoria nas relações com eles (80%) e nos seus sistemas de Tecnologia de Informação - TI (76%). A partir destes e dos demais resultados alcançados são ressaltadas diretrizes, dentre as quais destacam-se: (1) necessidade de formalização da utilização de Indicadores de Desempenho dos Fornecedores; (2) indicação do aumento do nível de envolvimento da área de compras em decisões abrangentes; (3) configuração de uma nova postura proativa da gestão de compras. O presente estudo de caso, em um segmento específico (habitacional) de um cidade de médio porte em um país em desenvolvimento, chega à conclusões que corroboram os conceitos e as teorias existentes na literatura de gestão da cadeia de suprimentos e estratégia organizacional, em especial no setor da construção civil, e seus resultados convergem com trabalhos desenvolvidos em outros países emergentes, o que pode contribuir para o avanço e maior utilização da SCM na região amazônica e, talvez, em outras que guardem caraterísticas ou contextos similares, podendo, assim, haver importantes implicações gerenciais no setor.This article aims to present a set of guidelines related to supply management, with emphasis to procurement, in small, medium and large companies in the construction industry, building subsector in the city of Belém, located in the Brazilian Amazon. Therefore, concepts were adopted relating theories to the structural area, processes, and performance trends. To perform the research, Having as central methodological reference a relevant national study in the management of supplies we opted for the survey method, using as a tool for collecting data a closed questionnaire, in electronic format.From the great diversity of results obtained, guidelines are highlighted, among which the following stand out: (1) the need to formalize the use of supplier performance indicators; (2) the increase in the shopping area of the level of involvement in comprehensive decisions; (3) setting up a new proactive approach of purchasing management. These results contribute to the management literature of supply chain and organizational strategy as well as provide important managerial implications, especially highlighting the most usual practices found in the amazon region

Ultrasonic time of flight estimation for wind speed measurement based on time-frequency domain using STFT

Peer Reviewe

The role of boundary conditions on the dynamics of green coffee beans in a rotated dryer

[EN] Coffee drying and roasting are usually performed in rotated dryers; therefore, the study of particle dynamics in this equipment is of great relevance to improve their efficiency and hence the quality of the final product. Thus, this work aimed to investigate experimentally and numerically the dynamics of coffee beans in a rotary dryer. The Euler-Euler model was employed to reproduce the particle velocity profile in the rolling regime under different boundary conditions. The results shown that the lower specularity coefficient (0.01), which characterizes the smooth wall and free slip condition, reproduced the bed behavior that most resembled the experimental one. On the other hand, the other coefficients (0.1 and 1.0) showed an increasing deformation in the bed surface, different from the observed experimental behavior. It was also verified that, as the filling degree increases, the bed surface deformation becomes more pronounced.The authors would like to thank FAPEMIG, CNPq and CAPES for the financial resources assigned to carry out this work.Machado, M.; Resende, I.; Lima, R.; Brandão, R.; Pivello, M.; Nascimento, S.; Duarte, C.... (2018). The role of boundary conditions on the dynamics of green coffee beans in a rotated dryer. En IDS 2018. 21st International Drying Symposium Proceedings. Editorial Universitat Politècnica de València. 331-338. https://doi.org/10.4995/IDS2018.2018.7455OCS33133

Efeitos da quitosana no desenvolvimento in vitro de videiras cv. merlot e no crescimento micelial do fungo elsinoe ampelina.

Objetivou-se, neste trabalho, avaliar o efeito da quitosana no desenvolvimento in vitro de plântulas de videira cv. Merlot e sua atividade antifúngica sobre Elsinoe ampelina. No primeiro experimento, explantes da cultivar Merlot foram transferidos para meio de cultura DSD1, acrescido das concentrações 0; 25; 50,100; 150 e 200 mg L-1 de quitosana. Após 90 dias de cultivo in vitro, as plântulas foram avaliadas quanto ao número de raízes e de folhas, porcentagem de enraizamento e brotação, comprimento de raízes e de parte aérea, massa fresca da planta. No segundo experimento, incorporou-se às concentrações 0, 60, 120, 180, 240 e 300 mg L-1 de quitosana ao meio BDA, onde inoculou-se o fungo. Posteriormente, avaliou-se o crescimento micelial aos 6 e 9 dias de incubação a 25º C no escuro. No primeiro experimento para as variáveis comprimento médio da parte aérea, massa fresca da planta inteira, porcentagem de enraizamento e porcentagem de estacas brotadas houve decréscimo linear em função das concentrações de quitosana. No segundo experimento, houve efeito linear negativo em função das concentrações crescentes de quitosana, sendo que a inibição do crescimento micelial foi de 81,7%, demonstrando o grande potencial do uso de quitosana no controle da antracnose da videira