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Distribution of the related weevil species sitophilus oryzae and s. zeamais in Brazil

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Insect science 2013年第6期20卷 763-770页

作者： Alberto s. Correa Luiz Orlando de Oliveira Lucas s. Braga Raul Narciso C. guedes departamento de Entomologia Universidade Federal de Vicosa Vicosa Brazil departamento de Bioquimica e Biologia Molecular Universidade Federal de Vicosa Vicosa Brazil

The genus sitophilus （Coleoptera： Curculionidae） encompasses species of great economic importance as stored grain pests worldwide. Among these species, the maize and the rice weevils （sitophilus zeamais and sitophilus oryzae, respectively） are partic- ularly important in warmer climates. These two weevils exhibit closely morphological and ecological resemblance making difficult their proper identification and recognition of their distribution in grain-producing regions. Both species are recorded in south America and particularly in Brazil, but their respective distribution and prevalence were not yet assessed in the region. Therefore, several insect samples throughout Brazil were collected and subjected to morphological identification using male genitalia and also using molec- ular identification with species-specific primers designed for clear recognition of both the species. The primers were designed for the specific amplification of a gene fragment of the cytochrome oxidase subunit I, which exhibited high specificity during our prelimi- nary experiments with insects from six populations of known species （either s. zeamais or s. oryzae）. Both identification strategies provided the same results indicating preva- lence of the maize weevil s. zeamais throughout the country. Two hypotheses may explain such prevalence：（i） the likely host preference ofs. zeamais for maize because this is the most cultivated cereal in Brazil, and （ii） the prevalence ofs. zeamais in tropical regions as compared with s. oryzae, which is more disseminated in subtropical and temperate regions.

关键词： cytochrome oxidase subunit I distribution maize weevil rice weevil south America

Causes and consequences of microsatellite instability in gastric carcinogenesis

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World Journal of gastroenterology 2014年第44期20卷 16433-16442页

作者： sérgia Velho Maria sofia Fernandes Marina Leite Ceu figueiredo Raquel seruca IPATIMUP-Institute of Molecular Pathology and Immunology of the University of Porto department of Pathology and Oncology Faculty of Medicine of the University of Porto

Loss of DNA mismatch repair(MMR) function, due to somatic or germline epi/genetic alterations of MMR genes leads to the accumulation of numerous mutations across the genome, creating a molecular phenotype known as microsatellite instability(MsI). In gastric cancer(g C), MsI occurs in about 15% to 30% of the cases. This review summarizes the current knowledge on the molecular mechanisms underlying the acquisition of MsI in g C as well as on the clinic, pathologic and molecular consequences of the MsI phenotype. Additionally, current therapeutic strategies for g C and their applicability in the MsI subset are also discussed.

关键词： gastric cancer Microsatellite instability Mismatch repair genes Oncogenes Helicobacter pylori

Production and quality of eucalyptus mini-cuttings using kaolin-based particle films

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Journal of Forestry Research 2021年第3期32卷 953-965页

作者： Maria de Fátima de Castro Oliveira Diego Pereira santos Karolline sena Figueredo Fabrício de Oliveira Reis Tiago Massi Ferraz Heder Braun Eliemar Campostrini Fábio Afonso Mazzei Moura de Assis figueiredo graduate Program in Agriculture and Environment Centro de Estudos Superiores de BalsasState University of MaranhaoPraca Goncalves Diass/nCentro65800-000 BalsasMABrazil Enraize-E.M.Figueredo Ind.e Com.de Produtos Florestais Br 222Km 09Lote 52Margem Esquerda S/n:Chac.Belo HorizonteZona RualAcailandiaMABrazil Centro de Ciências Agrárias State University of MaranhaoAv.Lourenco Vieira da Silva1000Jardim Sao Cristovao65055-310 Sao LuísMABrazil CCTA Northern Rio de Janeiro State UniversityAv.Alberto Lamego200028013-602 Campos dos GoytacazesRJBrazil

Considering the expansion of forest plantations over the Brazilian territory and the imminent increase in air temperatures due to global warming,the search for technologies that ensure high levels of productivity and high quality plants in clonal nurseries is *** kaolin-based particle films(KBPF)has been used as a physical barrier to reduce the negative effects of excessive solar radiation and adverse *** effects of KBPF on production and physiological quality of eucalyptus mini-cuttings were evaluated during two different seasons.A randomized block design was used,consisting of five treatments and four *** concentrations(0,3%,5%,7%,and 10%)were tested here and six weekly replicates of each concentration was *** different kaolin concentrations and seasonal variations resulted in a quadratic response of the leaf sPAD reading during both daily evaluation *** applications resulted in a quadratic response of photochemical efficiency in the morning period,and an increasing specific leaf weight linear response,and during the dry season,the different kaolin concentrations resulted in a bud length quadratic *** results indicated that the kaolin application maintained the production and yield index statistically equal between weekly KBPF applications,improving photochemical efficiency,leaf thickness,sPAD reading,and bud *** use of KBPF could reduce the intervals between collections of mini-cuttings and increase nursery yields in environments that present high temperatures.

关键词： Photoprotector Ecophysiology Forestry Clonal propagation

An innovative approach for integrated airline network and aircraft family optimization

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Chinese Journal of Aeronautics 2020年第2期33卷 634-663页

作者： JoséALEXANDRE T.g.FREgNANI Bento s.de MATTOs JoséA.HERNANdes department of Aeronautical Engineering Technological Institute of Aeronautics12228-900 Sao Jose dos CamposBrazil

The determination of optimal aerial transport networks and their associated flight frequencies is crucial for the strategic planning of airlines,as well as for carrying out market research,to establish target markets,and for aircraft and crew *** addition,optimum airplane types for the selected networks are crucial to improve revenue and to provide reduced operating *** present study proposes an innovative approach to determine the optimal aerial transport network simultaneously with the determination of the optimum fleet for that network,composed of three types of airplanes(network and vehicle integrated design).The network profit is *** passenger’s demands between the airports are determined via a gravitational *** embedded linear programming solution is responsible for obtaining potential optimal network *** optimum fleet combination is determined from a database of candidate aircraft designs via genetic algorithm.A truly realistic airplane representation is made possible thanks to accurate surrogate models for engine and aerodynamics is *** accurate engine deck encompassing a compression map and an innovative engine weight calculation besides an aerodynamical artificial neural network module enable a high degree of accuracy for the mission *** proposed methodology is applied to obtain the optimum network comprised of twenty main Brazilian airports and corresponding fleet.

关键词： Air transport Aircraft design Airline economics Airline network optimization Multidisciplinary design optimization

Boosting hydrogen and chemicals production through ethanol electro-reforming on Pt-transition metal anodes

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Journal of Energy Chemistry 2022年第7期31卷 394-406,I0011页

作者： Alberto Rodríguez-gómez Fernando Dorado Paula sánchez Ana Raquel de la Osa Chemical Engineering department Faculty of Chemical Sciences and TechnologyUniversity of Castilla-La Mancha

The aim of this work is to boost the combined hydrogen and added-values compounds generation(acetaldehyde, acetic acid and ethyl acetate) through ethanol electrochemical reforming using bimetallic anodes. In particular, the influence of the secondary metal on the electrochemical performance as well as on the product distribution was studied. For that purpose, Pt X/C electrocatalysts(where X corresponds to Cu, Co, Ni and Ru) were synthesized by the modified polyol method and tested in both half-cell and proton exchange membrane(PEM) cell configurations. Characterization results showed that incorporation of Ni and Co into the Pt matrix enhances the morphological properties of the material, providing smaller crystallite sizes, higher active surface areas and hence, better dispersion when comparing to Ru and Cu-based electrocatalysts. Ethanol oxidation reaction(EOR) was evaluated by cyclic, linear voltammetry and chronopotentiometry assays. Pt Co/C and Pt Ni/C exhibited the highest electrocatalytic activity at high polarization levels, which translate into an improvement of more than 30%(up to 1050 m A cm^(-2)) in the hydrogen production and chemical yields. On the other hand, Pt Ru/C results more advantageous for a lower potential interval(g the acetic acid production despite sacrificing ethanol conversion. Pt Cu/C presented the lowest results in both electrochemical performance and product distribution. such differences in the electrochemical performance can be rationalized in terms of the synergistic effect between both metals(particle size distribution, grade of dispersion and hydrophilic behavior), which demonstrate that the incorporation of a different secondary metal plays an essential role in the EOR development.

关键词： Ethanol electrochemical reforming Bimetallic anodic electrocatalysts PEM cell High current performance Hydrogen Chemicals production

The Logic of Incarnation： Hegel＇s Use of Plato＇s Philebus in the shorter Logic and in the Lectures on the Philosophy of Religion

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Journal of Philosophy study 2016年第10期6卷 569-577页

作者： Chrysantho sholl figueiredo Universidade Federal do Parana

Hegel uses Plato＇s classical text, Philebus, in two of his most important texts, the so called shorter Logics, the first part of the famous Encyclopedia of Philosophical sciences and in The Lectures on the Philosophy of Religion. The aim of this article is to analyze how can this two references be read together as to form a relationship between logic and religion in the very heart of Hegelian philosophy. In the first case, Hegel analyzes Plato＇s text within the context of his Doctrine of Being, specially from §§ 89 to 95, which deal with the question of determinate being. In The Lectures on the Philosophy of Religion, on the other hand, the reference appears in the 1824 Lectures in a particularly complex chapter called ＂The Transition to the speculative standpoint of Religion,＂ in which Hegel affirms not only that such a speculative standpoint is the only one in which religion can be truly grasped, but also that the Christian concept of ＂incarnation of god＂ is the ＂speculative midpoint＂ of religion. It will be argued, therefore, that the ontological question of determination and actuality, as exposed in the shorter Logics, is fundamental to the metaphysics of Christian Religion as Hegel understands it not only in his Philosophy of Religion, but arguably in his whole philosophy.

关键词： Hegel Logic Philosophy of Religion greek Philosophy Plato Christianity Incarnation of god

Helicobacter heilmannii sensu lato :An overview of the infection in humans

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World Journal of gastroenterology 2014年第47期20卷 17779-17787页

作者： Mario Bento-Miranda Ceu figueiredo department of Pathology and Oncology Faculty of Medicine of the University of Porto4200-465 PortoPortugal Institute of Molecular Pathology and Immunology of the University of Porto 4200-465 PortoPortugal

Helicobacter heilmannii sensu lato(*** s.l.)is a group of gastric non-Helicobacter pylori Helicobacter species that are morphologically indistinguishable from each *** *** the stomach of several animals and may have zoonotic *** the prevalence of these infections in humans is low,they are associated with gastric pathology,including mucosa-associated lymphoid tissue lymphoma,making them a significant health ***,the taxonomy,epidemiology,microbiology,diagnosis,and treatment of these infections will be *** gastric pathology associated with *** *** in humans will also be ***,the features of the complete bacterial genomes available and studies on species-specific pathogenesis will be *** understanding of the mechanisms that underlie gastric disease development mediated by the different bacterial species that constitute *** *** essential for developing strategies for prevention and treatment of these infections.

关键词： Helicobacter heilmannii sensu lato gastric non-Helicobacter pylori Helicobacter species Pathogenesis Diagnosis Treatment genomes

semantic segmentation of Lumbar Vertebrae Using Meijering U-Net(MU-Net)on spine Magnetic Resonance Images

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Computer Modeling in Engineering & sciences 2025年第1期142卷 733-757页

作者： Lakshmi s V V shiloah Elizabeth Darmanayagam sunil Retmin Raj Cyril department of Computer science and Engineering College of Engineering GuindyAnna UniversityChennai600025India department of Information Technology Madras Institute of TechnologyAnna UniversityChrompetChennai600044India

Lower back pain is one of the most common medical problems in the world and it is experienced by a huge percentage of people *** to its ability to produce a detailed view of the soft tissues,including the spinal cord,nerves,intervertebral discs,and vertebrae,Magnetic Resonance Imaging is thought to be the most effective method for imaging the *** semantic segmentation of vertebrae plays a major role in the diagnostic process of lumbar *** is difficult to semantically partition the vertebrae in Magnetic Resonance Images from the surrounding variety of tissues,including muscles,ligaments,and intervertebral discs.U-Net is a powerful deep-learning architecture to handle the challenges of medical image analysis tasks and achieves high segmentation *** work proposes a modified U-Net architecture namely MU-Net,consisting of the Meijering convolutional layer that incorporates the Meijering filter to perform the semantic segmentation of lumbar vertebrae L1 to L5 and sacral vertebra ***-colour mask images were generated and used as ground truth for training the *** work has been carried out on 1312 images expanded from T1-weighted mid-sagittal MRI images of 515 patients in the Lumbar spine MRI Dataset publicly available from Mendeley *** proposed MU-Net model for the semantic segmentation of the lumbar vertebrae gives better performance with 98.79%of pixel accuracy(PA),98.66%of dice similarity coefficient(DsC),97.36%of Jaccard coefficient,and 92.55%mean Intersection over Union(mean IoU)metrics using the mentioned dataset.

关键词： Computer aided diagnosis(CAD) magnetic resonance imaging(MRI) semantic segmentation lumbar vertebrae deep learning U-Net model

A comprehensive investigation on nonlinear vibration and bending characteristics of bio-inspired helicoidal laminated composite structures

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Applied Mathematics and Mechanics(English Edition) 2025年第1期46卷 81-100页

作者： s.sAURABH R.KIRAN D.sINgH R.VAIsH V.s.CHAUHAN school of Mechanical and Materials Engineering Indian Institute of Technology Mandi

Bio-inspired helicoidal composite laminates, inspired by the intricate helical structures found in nature, present a promising frontier for enhancing the mechanical properties of structural designs. Hence, this study provides a comprehensive investigation into the nonlinear free vibration and nonlinear bending behavior of bio-inspired composite plates. The inverse hyperbolic shear deformation theory(IHsDT) of plates is employed to characterize the displacement field, with the incorporation of green-Lagrange nonlinearity. The problem is modeled using the C0finite element method(FEM), and an in-house code is developed in the MATLAB environment to solve it numerically. Various helicoidal layup configurations including helicoidal recursive(HR), helicoidal exponential(HE), helicoidal semi-circular(Hs), linear helicoidal(LH), and Fibonacci helicoidal(FH)with different layup sequences and quasi-isotropic configurations are studied. The model is validated, and parametric studies are conducted. These studies investigate the effects of layup configurations, side-to-thickness ratio, modulus ratios, boundary conditions, and loading conditions at different load amplitudes on the nonlinear vibration and nonlinear bending behaviors of bio-inspired composite plates. The results show that the laminate sequence exerts a substantial impact on both nonlinear natural frequencies and nonlinear bending behaviors. Moreover, this influence varies across different side-to-thickness ratios and boundary conditions of the bio-inspired composite plate.

关键词： finite element method (FEM) nonlinear green-Lagrange inverse hyperbolic shear deformation theory (IHsDT) bio-inspired composite plate helicoidal O322