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Asian Pacific Journal of Tropical Biomedicine 2014年第5期4卷 367-373页

作者： aline o.da conceio Gilsane Lino von Poser Benoit Barbeau Julie Lafond State University of Santa Cruz Federal University of Rio Grande do Sul BioMed Research Center University of Quebec-Montreal Maternal-Fetal Physiology Laboratory Biological Sciences DepartmentUniversity of Quebec-Montreal

objective:To study the effect of crude methanol and n-hexane extracts of Hypericum connatum(***) and Hypericum caprifoliatum on trophoblast-like ***:BeWo and JEG-3 trophoblast-like cells were submitted to different extract concentrations(1.5,10 and 15 μg/mL) and evaluated in relation to cell viability and in titro trophoblast differentiation and *** viability was evaluated using WST-1 *** was measured by luciferase production,hCG production/release,and mitogenactivated protein kinase signaling pathway *** function of the trophoblast-like cells was measured by^(25)Ca^(2*) influx ***:The results showed a decrease in cell viability/*** plants and different extracts induced a significant decrease in hCG production/release and luciferase *** did not cause mitogen-activated protein kinase signaling pathway disturbance;however,Hypericum caprifoliatum n-hexane extract at 15 μg/mL inhibited extracellular signalregulated kinase 1/2 *** significant increase in Ca^(2+) influx by JEG-3 cells was seen after short and long incubation times with *** methanolie extract at 15 μg/***:The results indicated that these two Hypericum species extracts can interfere on trophoblast differentiation and Ca^(2+)influx,according to their molecular *** in vivo experiments are necessary to establish their action on placental formation and function,this study suggests that attention must be paid to the potential toxic effect of these plants.

关键词： BeWo JEG-3 Hypericaceae ERK1/2 p38 Ca^(2+)influx

Impacts of land use and land cover changes on hydrological processes and sediment yield determined using the SWAT model

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International Journal of Sediment Research 2022年第1期37卷 54-69页

作者： Edivaldo Afonso de oliveira Serr?o Madson Tavares Silva Thomás Rocha Ferreira Lorena concei??o Paiva de Ataide Cleber Assis dos Santos aline Maria Meiguins de Lima Vicente de Paulo Rodrigues da Silva Francisco de Assis Salviano de Sousa Denis José Cardoso Gomes Academic Unit of Atmospheric Sciences Federal University of Campina Grande Department of Physics Center for Natural and Exact Sciences Federal University of Santa Maria Institute of Technology Civil Engineering Graduate Program Federal University of Pará Earth System Science Center National Institute of Space Research Institute of Geosciences Federal University of Pará

Land use and land cover (LULC) changes strongly affect local hydrology and sediment *** current study focused on a basin in the Brazilian Amazon and had the following three objectives:(1) to perform an effective diagnosis of flow and sediment yield,(2) to evaluate the impacts of LULC changes over the last 40 years on the hydro-sedimentological variables,and (3) to investigate the impacts of the possible trends or breaking points in the flow,surface runoff,and sediment yield *** Soil and Water Assessment Tool (SWAT) model validation showed that the simulated results were consistent with the data measured in the dynamic reproduction of flow ***,changes in LULC altered surface runoff,sediment yield,and flow according to the Mann-Kendall and Pettitt non-parametric *** was also observed that the sub-basins in which pastureland is predominant are more susceptible to increased surface runoff and sediment *** to trend and homogeneity tests,these sub-basins had break points in the time series of these *** the other hand,in the sub-basins whose land cover is predominantly forest,the time series is homogeneous and *** current study highlighted the impacts that 40 years of LULC changes in an Amazonian basin had on hydro-sedimentological variables,which,in turn,can play an important role in changing the hydrological cycle,consequently these changes can also impact diverse human activities in the region,such as agribusiness,livestock,energy production,food security,and public water ***,it is concluded that the SWAT model is a good estimator of hydro-sedimentological processes in Amazonian basins and can be used by decision makers in the management of water and environmental resources.

关键词： Hydrological modeling Sediment yield Amazon basin SWAT model

Attributes of stand-age-dependent forest determine technosol fertility of Atlantic forest re-growing on mining tailings in Mariana,Brazil

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Journal of Forestry Research 2022年第1期33卷 103-116页

作者： Pedro Manuel Villa Sebastião Venâncio Martins aline Pilocelli Gabriel Correa Kruschewsky Andreia Aparecida Dias Fabio Haruki Nabeta Forest Restoration Laboratory Department of Forest EngineeringUniversidade Federal de ViçosaViçosaMinas GeraisBrazil Fundação Renova Belo HorizonteMinas GeraisBrazil

Understanding how soil fertility changes due to environmental conditions and stand-age-dependent forest attributes is important for local-scale forest *** evaluated the effects of stand-age-dependent forest attributes(plant community composition and litter stock)on soil and technosol fertility across two second-growth Atlantic forests(SGF)after the deposition of mining tailings in Mariana,southeastern *** hypothesized that technosol fertility in the SGF tailings is positively affected by plant community composition variability,stand age,and litter *** used total exchangeable bases and organic matter as fertility indicators for technosol and soil,and species composition and litter stock as stand-age-dependent forest *** results showed significant differences in the stand-age-dependent forest attributes and soil chemical properties between the two forest patches(SGF tailing and SGF non-tailing)***,there was a marked gradient of litter storage and fertility between soil and technosol that can be important forest recovery indicators for the affected plant ***,according to the tested models,we corroborated the hypothesis that technosol fertility is positively affected by stand age,plant community composition variability,and litter stock,which may contribute considerably to forest recovery on *** results demonstrate that the fertility predictors analyzed to explain the forest recovery on tailings can also be considered as ecological indicators for assessing forest restoration in areas impacted by mining tailings in Mariana.

关键词： Ecological indicators Forest recovery Litter stock Nutrient recovery Technosol

Analysing the impact of migration on HIV/AIDS cases using epidemiological modelling to guide policy makers

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Infectious Disease Modelling 2022年第1期7卷 252-261页

作者： ofosuhene o.Apenteng Prince P.osei Noor Azina Ismail aline Chiabai Division for Global Surveillance Research Group for Genomic EpidemiologyNational Food InstituteTechnical University of DenmarkKongens LyngbyDenmark School of Mathematics and Statistics Carleton UniversityCanada Department of Statistics University of HaifaIsrael Department of Applied Statistics Faculty of Economics and AdministrationUniversity of MalayaKuala LumpurMalaysia Basque Centre for Climate Change(BC3) LeioaSpain

In this paper,we present the impact of migration on the spread of HIV and AIDS cases.A simple model for HIV and AIDS that incorporates migration and addresses its contributions to the spread of HIV and AIDS cases was *** model was calibrated to HIV and AIDS incidence data from *** explore the use of Markov chain Monte Carlo(MCMC)simulation method to estimate uncertainty in all the unknown parameters incorporated in our proposed *** the migrant population,1.5572e-01 were susceptible to HIV transmission,which constituted 67,801 migrants.A proportion of migrants,6.3773e-04,were estimated to be HIV infected,constituting 278 *** were 72(per 10,000)migrants estimated to have had AIDS,representing a proportion of *** result suggests that the disease-free steady state was unstable since the estimated basic reproduction number R0 was 2.0906 and 2.3322 for the models without and with migration,*** is not a good indicator from the public health point of view,as the aim is to stabilize the epidemic at the disease-free *** advantage of introduction of migration to the simple model validated the true R0 and the transmission rate b associated with HIV and AIDS epidemic disease in *** also indicates an approximately 12 percentage points increase in the rate of HIV infection with migration.

关键词： Migration Mathematical transmission modeling HIV/AIDS Parameter estimation Basic reproduction number

High order of Accuracy for Poisson Equation obtained by Grouping of Repeated Richardson Extrapolation with Fourth order Schemes

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Computer Modeling in Engineering & Sciences 2021年第8期128卷 699-715页

作者： Luciano Pereira da Silva Bruno Benato Rutyna aline Roberta Santos Righi Marcio Augusto Villela Pinto Graduate Program in Numerical Methods in Engineering Federal University of ParanaCuritiba81531-980Brazil Graduate Program in Space Sciences and Technologies Aeronautics Institute of TechnologySao Jose dos Campos12228-900Brazil Department of Mechanical Engineering Federal University of ParanaCuritiba81531-980Brazil

In this article,we improve the order of precision of the two-dimensional Poisson equation by combining extrapolation techniques with high order *** high order solutions obtained traditionally generate non-sparse matrices and the calculation time is very *** can obtain sparse matrices by applying compact *** this article,we compare compact and exponential finite difference schemes of fourth *** numerical solutions are calculated in quadruple precision(Real*16 or extended precision)in FoRTRAN language,and iteratively obtained until reaching the round-off error magnitude around 1.0E−*** procedure is performed to ensure that there is no iteration *** Repeated Richardson Extrapolation(RRE)method combines numerical solutions in different grids,determining higher orders of *** main contribution of this work is based on a process that initializes with fourth order solutions combining with RRE in order to find solutions of sixth,eighth,and tenth order of *** multigrid Full Approximation Scheme(FAS)is also applied to accelerate the convergence and obtain the numerical solutions on the fine grids.

关键词： Tenth order accuracy RRE compact scheme exponential scheme multigrid finite difference

Reduction Discoloration of Reactive Dyed Cotton Waste and Chemical Recycling via Ionic Liquid

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Journal of Renewable Materials 2024年第9期12卷 1557-1571页

作者： aline Ferreira Knihs Larissa Klen Aragão Miguel Angelo Granato Andrea Cristiane Krause Bierhalz Rita de Cassia Siqueira Curto Valle Department of Textile Engineering Federal University of Santa CatarinaBlumenau89036-256Brazil

The textile industry generates large volumes of waste throughout its production *** of this waste is colored,therefore,discoloration is an important step toward recycling and reusing this *** study focused on the chemical reductive discoloration of textile waste composed of cotton dyed with reactive *** experimental design demonstrated the significant influence of the concentration of reducing agent and time of reaction on the degree of whiteness of the cotton *** concentration of the alkaline agent was not significant in the *** optimization of the reaction conditions lead to Berger degree of 50.5±*** discolored cotton was chemically recycled through dissolution in ionic liquid 1-ethyl-3-methylimidazolium chloride and regeneration in film form in *** microstructure of the regenerated cellulose films was evaluated by Scanning Electron Microscopy(SEM)indicating complete dissolution and uniform *** discoloration process reduced the polymerization degree and crystallinity index of the cotton fibers but retained the cellulose I *** dissolution and cellulose regeneration process results in transparent films with an amorphous *** thermal behavior,evaluated by thermogravimetric analysis,indicated that residues and regenerated film presented a main decomposition *** maximum decomposition rate temperature of the regenerated films was approximately 40℃lower than the cotton fibers,which correlates well with the reduction in polymerization degree and amorphous *** general,the study demonstrated that textile cotton waste dyed with reactive dyes can be chemically discolored to form transparent and amorphous films,contributing to the development of sustainable strategies for the textile industry.

关键词： Reactive dyed cotton waste reactive discoloration ionic liquid dissolution and regeneration recycling and reusing

Phenolics from grapefruit peels inhibit HMG-CoA reductase and angiotensin-I converting enzyme and show antioxidative properties in endothelial *** 926 cells

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Food Science and Human Wellness 2015年第2期4卷 80-85页

作者： Ayokunle o.Ademosun Ganiyu oboh Sabina Passamonti Federica Tramer Lovro Ziberna aline Augusti Boligon Margareth Linde Athayde Functional Foods and Nutraceuticals Unit Department of BiochemistryFederal University of TechnologyAkureNigeria Department of Life Sciences University of Triestevia L.Giorgieri 134127 TriesteItaly Program of Post-Graduation in Pharmaceutical Sciences Federal University of Santa MariaCampus CamobiSanta MariaRS 97105-900Brazil

This study sought to investigate the possible mechanisms for the use of phenolic extracts from grapefruit peels in the management/prevention of cardiovascular *** effects of the phenolic extracts on key enzymes relevant to cardiovascular diseases[3-hydroxy-methyl-3-glutaryl coenzyme A reductase(HMG-CoA reductase)and angiotensin-I converting enzyme(ACE)],cellular antioxidant activity in human endothelial cells(*** 926)and radicals[1,1-diphenyl-2 picrylhydrazyl(DPPH)and 2,2-azino-bis(3-ethylbenzthiazoline-6-sulphonic acid)(ABTS)]scavenging abilities were *** phenolic contents of the extracts were investigated using HPLC–*** was no significant(P>0.05)difference in the HMG-CoA reductase inhibitory ability of the two extracts,while the bound phenolic extracts had a stronger ACE inhibitory ability than the soluble free *** extracts also showed intracellular antioxidant activity in human endothelial(*** 926)***,the bound phenolics had significantly higher radicals(DPPH*and ABTS*)scavenging abilities than the free *** HPLC analysis revealed the presence of flavonoids(quercetin and kaempferol),phenolics acids(resveratrol,gallic acid,ellagic acid and caffeic acid)and tannin(catechin).The cellular antioxidative properties and inhibition of enzymes relevant to the management of cardiovascular complications showed that grapefruit peels could be used as nutraceuticals for the management of such conditions.

关键词： prevention cardiovascular phenolic

The role of rhizobacteria in rice plants: Growth and mitigation of toxicity

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Journal of Integrative Agriculture 2018年第12期17卷 2636-2647页

作者： Marcela C F Rêgo aline F Cardoso Thayná da C Ferreira Marta C C de Filippi Telma F V Batista Rafael G Viana Gisele B da Silva Plant Protection Laboratory Institute of Agrarian Sciences Federal Rural University of Amazon Phytopathology Laboratory Brazilian Enterprise for Agricultural Research-Rice and Beans

Allelopathic compounds reduce the growth and productivity of upland rice plants, especially in consecutive plantations. The rhizobacteria Pseudomonas fluorescens BRM-32111 and Burkholderia pyrrocinia BRM-32113 have been recorded as growth promoters in rice. This study was developed to understand the effect of the application of rhizobacteria on upland rice plants in consecutive plantations. Experiments were conducted in a completely randomized design with four replications of four treatments: rice seed inoculated with P. fluorescens BRM-32111, rice seed inoculated with B. pyrrocinia BRM-32113(both sown on soil with rice residue), non-inoculated plants sown on soil with rice residue(control with residue(WR)), and non-inoculated plants on soil with no residue(NR). Roots and seedling growth were adversely affected by allelopathic compounds in control WR plants. Plants inoculated with rhizobacteria P. fluorescens BRM-32111 or B. pyrrocinia BRM-32113 induced an increase of 88% in biomass, 3% in the leaf area, 40% in length, 67% in root biomass, 21% in chlorophyll a, 53% in chlorophyll(a+b), 50% in rate of carbon assimilation(A), 227% in A/rubisco carboxylation efficiency(Ci) and 63% in water use efficiency(WUE) compared to control WR plants. These results indicate that rhizobacteria P. fluorescens BRM-32111 and B. pyrrocinia BRM-32113 increase the tolerance of rice plants to stress from allelochemicals. There are possible practical agricultural applications of these results for mitigating the effects of environmental allelochemistry on upland rice.

关键词： allelopathy B.pyrrocinia P.fluorescens rhizobacteria rice

Photoluminescence emissions of Ca_(1-x)Wo_(4):xEu^(3+):Bridging between experiment and DFT calculations

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Journal of Rare Earths 2022年第10期40卷 1527-1534页

作者： Amanda Fernandes Gouveia Marcelo Assis Lara Kelly Ribeiro aline Estefany Brandao Lima Eduardo de oliveira Gomes daniele Souza Yara Gobato Galvao Ieda Lucia Viana Rosa Geraldo Eduardo.da Luz Jr Eva Guillamón Elson Longo Juan Andrés Miguel Angel San-Miguel Department of Physical and Analytical Chemistry University Jaume I(UJI)12071CastelloSpain Institute of Chemistry State University of Campinas(Unicamp)13083-970CampinasSPBrazil CDMF Federal University of S?o Carlos(UFSCar)P0.Box 67613565-905Sao CarlosSao PauloBrazil Departamento de Química Federal University of Piauí(UFPI)64049-550TeresinaPiautBrazil Physics Department Federal University of S?o Carlos(UFSCar)P.0.Box 67613565-905Sao CarlosSao PauloBrazil

In this work,the impact of the doping process on the photoluminescence emission of CaWo_(4) as a function of the concentration of Eu^(3+) cation(0.01 mol%,0.02 mol%,0.04 mol%,0.06 mol%,0.08 mol%,and 0.10 mol%) is discussed in ***_(1-x)Wo~4:xEu^(3+) samples were successfully synthesized by a simple coprecipitation method followed by microwave *** blue shift in the absorption edge confirms the quantum confinement effect and the band gap energy covers the range from 3.91 to 4.18 eV,as the amount of Eu^(3+) cations *** experimental results are sustained by first-principles calculations,at the density functional theory level,to decipher the geometry and electronic properties,thereby enabling a more accurate and direct comparison between theory and experiment for the Ca_(1-x)Wo_(4):xEu^(3+) structure.

关键词： Ca_(1-x)Wo_(4):xEu^(3+) DFT calculations Photoluminescence emissions Rare earths

Radiographic and tomographic description of marlin sucker Remora osteochir, Pisces: Echeneidae—preliminary data of one specimen

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Marine Life Science & Technology 2020年第3期2卷 246-251页

作者： AndréLuiz Veiga Conrado Renata Stecca lunes Carlos Eduardo Malavasi Bruno aline Tiemi Shiraishi Rocha JoséRoberto Machado Cunha da Silva Laboratory of Evolutive Histophysiology Department of Cell and Developmental BiologyInstitute of Biomedical SciencesUniversity of Sao PauloAvenida ProfLineu Prestes1524Cidade UniversitariaSao Paulo 05508-000Brazil Laboratory of Immunological Techniques Applied to Morphophysiology School of Veterinary Medicine and Animal ScienceDepartment of SurgeryUniversity of Sao PauloAvenida Prof.Di.Orlando Marques de Paiva87.Cidade UniversitariaSao Paulo 05508-270Brazil

Remoras are commensal fish of various marine species,such as sharks,swordfishes,turtles,dolphins,manta rays and *** specimen of marlin sucker Remora osteochir was evaluated using computed tomography for skeletal digital reconstruction,digital radiology for general evaluation and bone counting,and the double contrast technique to distinguish coelomic *** radiographic images,it was possible to observe otoliths in the center of the neurocranium,to count 27 vertebrae,nine pairs of ribs,and to detect the presence of the hipural and epural bones near of the caudal *** double contrast images,it was possible to visualize the swim bladder,gills,heart,liver,stomach and *** the tomographic images and reconstructions,it was possible to identify the intercalar bones of the cephalic disc;the spine with vertebral bodies composed of neural arches and ventral ribs;and the pectoral girdle formed by posttemporal,cleithrum and scapulocoracoid *** was concluded that digital radiology and computed tomography were able to describe anatomical structures of marlin sucker *** without the need for dissection.

关键词： Teleost fish Double contrast Computed tomography Digital radiology Skeleton