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Applying Digital Image Processing to Evaluate a Extraction Method of Cartographic Features in Digital Images

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Journal of Earth Science and Engineering 2012年第4期2卷 241-246页

作者： Erivaldo Antonio da Silva guilherme Pina Cardim Cartography Department Faculty of Science and Technology Sao Paulo State University S6o Paulo 19060 900 Brazil Computer Science Department Faculty of Science and Technology Sao Paulo State University Sao Paulo 19060 900 Brazil

A topic studied in cartography is to make the extraction of cartographic features that provide the update of cartographic maps more easily. For this reason many automatic routines were created with the intent to perform the features extraction. Despite of all studies about this, some features cannot be found by the algorithm or it can extract some pixels unduly. So the current article aims to show the results with the software development that uses the original and reference image to calculate some statistics about the extraction process. Furthermore, the calculated statistics can be used to evaluate the extraction process.

关键词： Remote sensing cartographic features extraction evaluate process digital image processing.

The influence of porosity on tablet subdivision

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Particuology 2020年第6期18卷 192-196页

作者： Maira T.Teixeira Livia L.Sa-Barreto Izabel C.Silva Tais Gratieri guilherme M.Gelfuso Ricardo N.Marreto Mariana Landin Marcilio Cunha-Filho Laboratory of Food Drugs and Cosmetics(LTMAC)University of Brasilia(UnB)70910-900 BrasiliaDFBrazil Laboratory of Nanosystems and Drug Delivery Devices(NanoSYS) Federal University of GoiasGoianiaGO.Brazil Departamento de Farmacologia Farmacia y Tecnologia Farmaceutica1+D Farma Group(Gl-1645)Universidade de Santiago de CompostelaSpain

A tablet microstructure,especially the porosity,is a crucial parameter that influences the mechanical ***,tablet subdivisions were studied as a functi on of tablet *** tablets were manufactured in the presenee of different diluents,namely microcrystalline cellulose,LudipressR,or lactose ***,the add让ion of Camphor was investigated,which was thereafter sublimated with a view of obtaining tablets having varying degrees of *** assays were corre lated to the subdivision performs *** increase in porosity reduced the hardness and increased the tablet friability,adversely impacting the *** all the excipients,an increase in relative porosity>90%represented the threshold level from which an inadequate subdivision *** in crease in tablet porosity led to a reduction in mechanical resista nee,which,combined with a heterogeneous and disc on tinuous distribution of pores within the matrix,resulted in poor subdivision *** trolling tablet porosity is an important consideration when designing tablets having a subdivision purpose.

关键词： Tablet subdivision Porosity Mass variation Mass loss Friability Hardness

Does landscape context affect pollinationrelated functional diversity and richness of understory flowers in forest fragments of Atlantic Rainforest in southeastern Brazil?

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Ecological Processes 2020年第1期9卷 737-748页

作者： Karoline Baptista de Lima Patrícia Alves Ferreira Milton Groppo Renato Goldenberg Emerson Ricardo Pansarin Roxana Cardoso Barreto guilherme Peres Coelho Yago Barros-Souza Danilo Boscolo Biology Department Faculty of PhilosophySciences and LettersUniversity of São PauloRibeirão PretoSP 14040-901Brazil National Institute of Science and Technology in Interdisciplinary and Transdisciplinary Studies in Ecology and Evolution(IN-TREE) SalvadorBrazil Botany Department Biological Science SectorParanáFederal UniversityCuritibaPR 81531-970Brazil Botany Department Biological Science CenterPernambuco Federal UniversityRecifePE 50670-420Brazil Institute of Bioscience Rio Grande do Sul Federal UniversityPorto AlegreRS 90040-060Brazil Botany Department Federal University of São CarlosSão CarlosSP 13565-905Brazil.

Background:How landscape modifications affect functional diversity of floral characteristics pertinent to pollinators is poorly *** possess functional traits that sometimes coevolved with pollinators,crucial for the maintenance of both pollinator and plant *** evaluated how richness and functional diversity of available understory flowers respond to forest cover and landscape heterogeneity in a multiscale *** in bloom were sampled from 25 landscapes in the understory of Atlantic Forest fragments in *** were classified into functional groups regarding flower characteristics relevant to *** heterogeneity and forest cover were measured in buffers ranging from 200 to 2000 m from sampling units and their correlation with plant richness and functional diversity was assessed using generalized linear models and further model selection through Akaike’s second-order information ***:Plants’richness and functional diversity were affected negatively by forest *** former responded to forest cover at a regional scale while the latter responded at a local *** landscape heterogeneity increased richness and functional ***:Our results showed that forest cover and landscape heterogeneity are important to support biodiversity related to pollination,mostly due to the availability of diversified resources and nesting sites associated to different land-uses for pollinators and flowering plant *** findings should highlight,along with forest cover,landscape heterogeneity as an environmental management priority in rural tropical areas for mitigating the loss of plant biodiversity and enhancing ecosystem functioning.

关键词： Functional diversity Pollination Landscape heterogeneity Forest cover Understory plant community

Proximal sensor-enhanced soil mapping in complex soil-landscape areas of Brazil

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Pedosphere 2021年第4期31卷 615-626页

作者： Sérgio H.G.SILVA David C.WEINDORF Wilson M.FARIA Leandro C.PINTO Michele D.MENEZES Luiz R.G.guilherme Nilton CURI Department of Soil Science Federal University of LavrasLavras 37200-000(Brazil) Department of Earth and Atmospheric Sciences Central Michigan UniversityMount Pleasant 48858(USA)

Portable X-ray fluorescence(pXRF) spectrometry and magnetic susceptibility(MS) via magnetometer have been increasingly used with terrain variables for digital soil mapping. However, this methodology is still emerging in many countries with tropical soils. The objective of this study was to use proximal soil sensor data associated with terrain variables at varying spatial resolutions to predict soil classes using the Random Forest(RF) algorithm. The study was conducted on a 316-ha area featuring highly variable soil classes and complex soil-landscape relationships in Minas Gerais State, Brazil. The overall accuracy and Kappa index were evaluated using soils that were classified at 118 sites, with 90 being used for modeling and 28 for validation. Digital elevation models(DEMs) were created at 5-, 10-, 20-, and 30-m resolutions using contour lines from two sources. The resulting DEMs were processed to generate 12 terrain variables. Total Fe, Ti, and SiO_(2) contents were obtained using pXRF, with MS determined via a magnetometer. Soil class prediction was performed using the RF algorithm. The quality of the soil maps improved when using only the five most important covariates and combining proximal sensor data with terrain variables at different spatial resolutions. The finest spatial resolution did not always provide the most accurate maps. The high soil complexity in the area prevented highly accurate predictions. The most important variables influencing the soil mapping were MS, Fe, and Ti. Proximal sensor data associated with terrain information were successfully used to map Brazilian soils at variable spatial resolutions.

关键词： magnetic susceptibility magnetometer portable X-ray fluorescence spectrometer soil class soil spatial analysis spatial resolution terrain variables

利用本地和侵入胎生鱼类（Poeciliidae,Teleostei）进行城市河流污染的综合生物学评估

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利用本地和侵入胎生鱼类（Poeciliidae,Teleostei）进行城市河流...

作者： guilherme Gomes Silva 西北农林科技大学

学位级别：硕士

外来入侵物种正在日益取代本地物种,尤其是在人为转化或污染的栖息地中。这为我们提供了使用入侵物种作为生物污染评估指标的可能性。然而,对于相同的焦点物种,综合生物学评估还依赖于多种方法的应用来量化它们对污染的生理或细胞遗传... 详细信息

外来入侵物种正在日益取代本地物种,尤其是在人为转化或污染的栖息地中。这为我们提供了使用入侵物种作为生物污染评估指标的可能性。然而,对于相同的焦点物种,综合生物学评估还依赖于多种方法的应用来量化它们对污染的生理或细胞遗传学反应。当物种被限制在受污染或未受污染的地点时,这是具有挑战性的。本研究利用一小组新热带胎生鱼类(胎鳉科)对水质进行综合生物学评估。通过比较巴西城市乌贝兰迪亚城市及郊区受到工业和生活废水不同程度污染的河流,证明了这个科的两个成员可以作为评估水污染水平的指标。在严重污染的地方,Phalloceros caudimacula tus似乎已被入侵孔雀鱼(Poecilia reticulata)所取代。尽管如此,本研究证明这两种物种都可以用于评估重金属(铅,铜和铬)的生物积累性。环境(沉积物)浓度预测了物种间体细胞组织中的浓度(R2值介于0.74和0.96之间)。此外,使用细胞遗传学方法估算了水污染的遗传毒性作用,并发现了污染水平(多个变量,压缩为主成分)用来预测物种间核异常的发生(例如,微核细胞的频率)R2在0.69和0.83之间)。在城市和受污染的环境中都会出现的胎鳉鱼,使这个科的鱼成为主要的生物监测和评估水质的焦点生物。两种物种可以互换使用,以评估水污染的遗传毒性影响,这可能有助于将来在广泛的地理范围内进行比较分析,因为胎鳉鱼科的成员已在世界范围内入侵了热带和亚热带地区。

关键词：生物积累遗传毒性 Poecilia Phalloceros 城市生态

Cartilage and bone tissue engineering using adipose stromal/stem cells spheroids as building blocks

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World Journal of Stem Cells 2020年第2期12卷 110-122页

作者： Gabriela S Kronemberger Renata Akemi Morais Matsui guilherme de Almeida Santos de Castro e Miranda JoséMauro Granjeiro Leandra Santos Baptista Bioengineering Directory of Metrology Applied to Life SciencesNational Institute of MetrologyQuality and Technology(INMETRO)Duque de CaxiasRJ 25250-020Brazil Post-graduate Program in Translational Biomedicine(Biotrans) UnigranrioCampus IDuque de CaxiasRJ 25250-020Brazil Post-graduate Program in Biotechnology National Institute of MetrologyQuality and Technology(INMETRO)Duque de CaxiasRJ 25250-020Brazil Federal University of Rio de Janeiro(UFRJ) Campus Duque de CaxiasDuque de CaxiasRJ 25250-020Brazil Laboratory of Clinical Research in Odontology Fluminense Federal University(UFF)Niterói 25255-030 Brazil Multidisciplinary Center for Biological Research(Numpex-Bio) Federal University of Rio de Janeiro(UFRJ)Campus Duque de CaxiasDuque de CaxiasRJ 25245-390Brazil

Scaffold-free techniques in the developmental tissue engineering area are designed to mimic in vivo embryonic processes with the aim of biofabricating,in vitro,tissues with more authentic *** clusters called spheroids are the basis for scaffold-free tissue *** this review,we explore the use of spheroids from adult mesenchymal stem/stromal cells as a model in the developmental engineering area in order to mimic the developmental stages of cartilage and bone *** from adult mesenchymal stromal/stem cells lineages recapitulate crucial events in bone and cartilage formation during embryogenesis,and are capable of spontaneously fusing to other spheroids,making them ideal building blocks for bone and cartilage tissue ***,we discuss data from ours and other labs on the use of adipose stromal/stem cell spheroids in chondrogenesis and osteogenesis in ***,recent studies support the notion that spheroids are ideal"building blocks"for tissue engineering by“bottom-up”approaches,which are based on tissue assembly by advanced techniques such as three-dimensional *** studies on the cellular and molecular mechanisms that orchestrate spheroid fusion are now crucial to support continued development of bottom-up tissue engineering approaches such as three-dimensional bioprinting.

关键词： Adipose stromal/stem cells Spheroids Building-blocks Bottom-up Developmental tissue engineering Cartilage and bone

Toxicity assessment of polyethylene microplastics in combination with a mix of emerging pollutants on Physalaemus cuvieri tadpoles

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Journal of Environmental Sciences 2023年第5期127卷 465-482页

作者： Amanda Pereira da Costa Araújo Thiarlen Marinho da Luz Mohamed Ahmed Ibrahim Ahmed Mir Mohammad Ali Md.Mostafizur Rahman Bojan Nataraj Daniela de Melo e Silva DamiàBarceló guilherme Malafaia Post-Graduation Program in Environmental Sciences Federal University of GoiásGoianiaGO 74690-970Brazil Laboratory of Toxicology Applied to the Environment Goiano Federal InstituteUrutaíGO 75790-000Brazil Plant Protection Department Faculty of AgricultureAssiut UniversityAssiut 71526Egypt Department of Aquaculture Faculty of FisheriesAquaculture&Marine ScienceSher-e-Bangla Agricultural UniversityDhaka 1207Bangladesh Department of Environmental Sciences Jahangirnagar UniversitySavar 1342Bangladesh Unit of Toxicology Department of ZoologySchool of Life SciencesBharathiar UniversityCoimbatore 641046India Laboratory of Environmental Mutagenesis Federal University of GoiásGoianiaGO 74690-970Brazil Catalan Institute for Water Research(ICRA-CERCA) H_(2)O BuildingScientific and Technological Park of the University of GironaEmili Grahit 101Girona 17003Spain Water and Soil Quality Research Group Department of Environmental ChemistryInstitute of Environmental Assessment and Water Research(IDAEA-CSIC)JordiGirona 1826Barcelona 08034Spain Post-Graduation Program in Conservation of Cerrado Natural Resources Goiano Federal InstituteUrutaíGO 75790-000Brazil Post-Graduation Program in Ecology Conservationand BiodiversityFederal University of UberlandiaUberlandiaMG 38400-902Brazil Post-Graduation Programa in Biotechnology and Biodiversity Federal University of GoiásGoianiaGO 74605-050Brazil

Studies in recent years have shown that aquatic pollution by microplastics(MPs)can be considered to pose additional stress to amphibian ***,our knowledge of how MPs affect amphibians is very rudimentary,and even more limited is our understanding of their effects in combination with other emerging ***,we aimed to evaluate the possible toxicity of polyethylene MPs(PE-MPs)(alone or in combination with a mix of pollutants)on the health of Physalaemus cuvieri *** 30 days of exposure,multiple biomarkers were measured,including morphological,biometric,and developmental indices,behavioral parameters,mutagenicity,cytotoxicity,antioxidant and cholinesterase responses,as well as the uptake and accumulation of PE-MPs in *** on the results,there was no significant change in any of the parameters measured in tadpoles exposed to treatments,but induced stress was observed in tadpoles exposed to PE-MPs combined with themixture of pollutants,reflecting significant changes in physiological and biochemical *** principal component analysis(PCA)and integrated biomarker response(IBR)assessment,effects induced by pollutants in each test group were distinguished,confirming that the exposure of *** tadpoles to the PE-MPs in combination with a mix of emerging pollutants induces an enhanced stress response,although the uptake and accumulation of PE-MPs in these animalswas ***,our study provides newinsight into the danger to amphibians of MPs coexisting with other pollutants in aquatic environments.

关键词： Amphibians Environmental toxicology Micropollutants Emerging pollutants Aquatic pollution Biomarkers

Neutron star cooling and GW170817 constraint within quark-meson coupling models

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Chinese Physics C 2021年第2期45卷 531-547页

作者： Odilon Lourenço César H.Lenzi Mariana Dutra Tobias Frederico M.Bhuyan Rodrigo Negreiros César V.Flores guilherme Grams Débora P.Menezes Departamento de Física Instituto Tecnológico de AeronáuticaDCTA12228-900São Josédos CamposSPBrazil Department of Physics Faculty of ScienceUniversity of MalayaKuala Lumpur 50603Malaysia Atomic Molecular and Optical Research Group Advanced Institute of Materials ScienceTon Duc Thang UniversityHo Chi Minh CityVietnam Faculty of Applied Sciences Ton Duc Thang UniversityHo Chi Minh CityVietnam Instituto de Física Universidade Federal Fluminense 20420NiteróiRJBrazil Centro de Ciências Exatas Naturais e TecnológicasUEMASULRua Godofredo Viana 1300Centro CEP:65901-480ImperatrizMaranhãoBrazil Departamento de Física Universidade Federal de Santa CatarinaFlorianópolisSCCP 476CEP 88.040-900Brazil Univ.Lyon Univ.Claude Bernard Lyon 1CNRS/IN2P3IP2I LyonUMR 5822F-69622VilleurbanneFrance

In the present work,we used five different versions of the quark-meson coupling(QMC)model to compute astrophysical quantities related to the GW170817 event and the neutron star cooling *** of the models are based on the original bag potential structure and three versions consider a harmonic oscillator potential to confine *** bag-like models also incorporate the pasta phase used to describe the inner crust of neutron *** a simple method studied in the present work,we show that the pasta phase does not play a significant ***,the QMC model that satisfies the GW170817 constraints with the lowest slope of the symmetry energy exhibits a cooling profile compatible with observational data.

关键词： equation of state compact star cooling in stars quark-meson coupling models tidal deformability neutron star merger

Adsorption of rare earth elements onto diatomite M45:Experimental investigations and modeling with statistical physics theory

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Journal of Rare Earths 2023年第11期41卷 1805-1811,I0006页

作者： Fatma Dhaouadi guilherme L.Dotto Julien Vieillard Diana Pinto Luis F.O.Silva Éder C.Lima Mu Naushad Fatma Aouaini Samia Nasr Adrián Bonilla-Petriciolet Abdelmottaleb Ben Lamine Laboratory of Quantum and Statistical Physics LR18ES18Faculty of Sciences of MonastirMonastir UniversityMonastirTunisia Research Group on Adsorptive and Catalytic Process Engineering(ENGEPAC) Federal University of Santa MariaAv.Roraima1000-797105–900Santa MariaRSBrazil NormandieUniversité UNIROUENINSA RouenCNRSCOBRA(UMR 6014)27000EvreuxFrance Universidad De La Costa Calle 58#55-66080002BarranquillaAtlánticoColombia Advanced Materials Research Chair Department of ChemistryCollege of ScienceKing Saud UniversityRiyadh11451Saudi Arabia Department of Chemistry College of ScienceBuilding#5King Saud UniversityRiyadhSaudi Arabia Department of Physics College of SciencePrincess Nourah Bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia Research Center for Advanced Materials Science(RCAMS) King Khalid UniversityAbha61413P.O.Box 9004Saudi Arabia Chemistry Department Faculty of ScienceKing Khalid UniversityP.O.Box 9004Abha61413Saudi Arabia Instituto Tecnológico de Aguascalientes 20256AguascalientesMexico

The separation of rare earth elements using diatomite M45 from aqueous solutions was *** experimental isotherms for the adsorption of trivalent lanthanum,cerium,and neodymium cations on this adsorbent were quantified under strongly acidic conditions(pH 2)at 298-328 *** adsorption equilibria of these earth elements were analyzed using two statistical physics models(homogeneous and heterogeneous monolayer models).The results show that the adsorption of these ions implies a multiionic mechanism,which is ***-containing functional groups are responsible for the adsorption of these rare-earth elements on the diatomite surface.A heterogeneous statistical physics model confirms that two Si-based functional groups participate in the separation of these *** calculated adsorption capacities at saturation follow the order:neodymium>cerium>*** interaction energies range from 28600 to 40100 J/mol,indicating physical adsorption on diatomite *** study demonstrates that diatomite M45 is a promising separation medium that can be used for the recovery of REEs dissolved in aqueous solutions via adsorption.

关键词： Lanthanum Cerium Neodymium Adsorption Diatomite M45 Statistical physics model