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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

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Effect of Cu-ZnO-Al_2O_3 supported on H-ferrierite on hydrocarbons formation from CO hydrogenation

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Chinese Journal of Catalysis 2016年第3期37卷 378-388页

作者： J.H.Flores M.E.H.Maia da costa M.I.Pais da silva 里约热内卢天主教大学生物化学系里约热内卢天主教大学物理系

Methanol synthesis catalysts based on Cu, Zn and Al were prepared by three methods and subsequently mixed with H-ferrierite zeolite in an aqueous suspension to disperse the catalysts over the support. These materials were characterized by X-ray diffraction, N2 adsorption, transmission electron microscopy, temperature programmed reduction, NH3 and H2 temperature-programmed desorption, and X-ray photoelectron spectroscopy. They were also applied to the CO hydrogenation reaction to produce dimethyl ether and hydrocarbons. The catalysts were prepared by coprecipitation under low and high supersaturation conditions and by a homogeneous precipitation method. The preparation technique was found to affect the precursor structural characteristics, such as purity and crystallinity, as well as the particle size distribution of the resulting catalyst. Low supersaturation conditions favored high dispersion of the Cu species, increasing the methanol synthesis catalyst＇s metallic surface area and resulting in a homogeneous particle size distribution. These effects in turn were found to modify the zeolite properties, promoting both a low micropore volume and blockage of the zeolite acid sites. The effect of the methanol synthesis catalyst on the reaction was verified by the correlation between the Cu surface area and the CO conversion rate.

关键词： Methanol synthesis catalyst Low supersaturation precipitation High supersaturation precipitation Syngas Hydrotalcite Hydrocarbon Dimethyl ether

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Mechanical properties of a clay soil reinforced with rice husk under drained and undrained conditions

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Journal of Rock Mechanics and Geotechnical Engineering 2023年第10期15卷 2676-2686页

作者： Claudia Regina Bernardi Baldin Maiky Yamato Kawanami Weiner Gustavo silva costa Vitor Reinaldo Bordignon Cristhyano Cavali da Luz Ronaldo Luis dos Santos Izzo Federal University of Technology-Paraná CuritibaBrazil

Fiber-reinforced soils have been increasingly used in geotechnical *** the years,research has sought to understand and investigate the influences of fibers as reinforcement in soilefiber *** study assessed the behavior of clayey soil in the city of Curitiba(Paraná,Brazil),adding rice husk fiber(RHF),an industrial waste from Cooperativa Agroindustrial in Alegrete(Rio Grande do Sul,Brazil).To evaluate the effect of the presence of natural RHF on the mechanical behavior of compacted soil,aspects such as the influence of fiber content and the drained and undrained behaviors of the soil were evaluated through unconfined triaxial compression *** following tests were realized:soil granulometry,specific mass of solids and Atterberg *** were produced in quadruplicate for the soil and mixtures using the RHF contents of 0.5%,0.75%,1%and 1.5%to determine the unconfined compressive strength(UCS).Triaxial tests were realized on a pure soil specimen and the specimens with 1%RHF under confining pressures of 50 kPa,100 kPa,200 kPa and 400 *** interactions at the interface between husk surface and soil were analyzed using scanning electron microscopy(SEM).In UCS tests,specimens with RHF percentages of 1%and 1.5%presented the highest results,with an increment of 36%compared to the soil without *** results of the consolidated drained triaxial compression tests show that in terms of effective stress,there was a small difference in the strength of the compacted pure soil and soil with the addition of *** the undrained tests,the strength increased with the inclusion of husk,with a reduction of 50%in cohesion and an increment of 22%in friction angle for specimens containing RHF compared to the soil without RHF additions.

关键词： Clay soil Rice husk Soil reinforcemen

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Auriculotherapy in primary health care: A large-scale educational experience in Brazil

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Journal of Integrative Medicine 2019年第4期17卷 302-309页

作者： Charles dalcanale Tesser Ari Ojeda Ocampo More Melissa costa Santos Emiliana Domingues Cunha da silva Fatima Terezinha Pelachini Farias Lucio Jose Botelho Department of Public Health Federal University of Santa Catarina Floriandpolis Santa Catarina 88036-800 Brazil Post-graduate Program in Public Health Federal University of Santa Catarina Florianopolis Santa Catarina 88036-800 Brazil Integrative Medicine and Acupuncture Service University Hospital Federal University of Santa Catarina Floriandpolis Santa Catarina 88036-800 Brazil Floriandpolis Municipality Health Office Florianopolis Santa Catarina 88036-800 Brazil

Auriculotherapy consists of physical stimuli applied to the outer ear and is commonly associated with traditional Chinese medicine (TCM). The authors present and discuss the development of a course that offers a semi-on-site auriculotherapy course for Brazilian primary health care (PHC) professionals. The course was funded by the Brazilian Ministry of Health and developed at the Federal University of Santa Catarina in 2015 by a team of experts in auriculotherapy. It consisted of 75 h of distance learning (five sequential modules) and 5 h of on-site learning. The modules included the following items:(1) introduction to integrative practices;(2) ear reflexology;(3) introduction to TCM;(4) biomedical view of auriculotherapy;and (5) auriculotherapy in PHC. The teaching material in eluded a workbook for each module, 14 video lectures and an interactive ear(on line resource) to study location and application to the main auricular points. The on-site lectures follow a structured script of ear palpation techniques, auricular seed insertion practice and clinical case discussions, under the supervision of trained instructors. The course was offered in 2016 and 2017 and on-site lectures took place in 25 cities, covering all Brazilian regions, in coordination with municipal or state boards of health. A total of 4273 health professionals concluded the training and their evaluation of the course was highly positive. The Brazilian experience of large-scale training shows the potential to disseminate auriculotherapy in the context of PHC, given that its practice is fast, easy to learn, safe, effective for different health problems and well accepted by the patients.

关键词： Auriculotherapy Traditional Chinese medicine Primary health care Health education Distance learning

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Chemical and microbiological characterization of tinctures and microcapsules loaded with Brazilian red propolis extract

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Journal of Pharmaceutical Analysis 2017年第5期7卷 280-287页

作者： Erika Tayse da Cruz Almeida Maria Cristina Delgado da silva José Marcos dos Santos Oliveira Regianne Umeko Kamiya Rodolfo Elleson dos Santos Arruda danilo Abreu Vieira Valdemir da costa silva Pierre Barnabé Escodro Irinaldo Diniz Basílio-Júnior Ticiano Gomes do Nascimento Laboratório de Controle de Qualidade e Análise de Fármacos Medicamentos e AlimentosCurso de FarmáciaEscola de Enfermagem e FarmáciaUniversidade Federal de AlagoasCampus A.C.SimõesBR 104 Norte-Km 97MaceióAL.CEP:57072-970Brazil Laboratório de Controle de Qualidade Microbiológico de Alimentos Faculdade de NutriçãoUniversidade Federal de AlagoasCampus A.C.SimõesBR 104 Norte/Km 97MaceióAL.CEP:57072-970Brazil

The aim of this study was to characterize tinctures and microcapsules loaded with an ethanol extract of red propolis through chemical, physicochemical and microbiological assays in order to establish quality control tools for nutraceutical preparations of red propolis. The markers(isoflavonoids, chalcones, pterocarpans,flavones, phenolic acids, terpenes and guttiferones) present in the tinctures A and B were identified and confirmed using LC/ESI/FTMS/Orbitrap. Four compositions(A, B, C and D) were prepared to contain B tincture of the red propolis with some pharmaceutical excipients and submitted to two drying processes, i. ***-drying and freeze-drying to obtain microcapsules loaded with the red propolis extract. The tinctures and microcapsules of the red propolis were submitted to the total flavonoid content and antioxidant activity *** antibacterial activity and minimum inhibitory concentration(MIC) were tested using Staphylococcus aureus ATCC 25293 and Pseudomonas aeruginosa ATCC 27853 strains. The tinctures and microcapsules presented high flavonoid quantities from 20.50 to 40.79 mg/100 mg of the microcapsules. The antioxidant activity and IC50 were determined for the tinctures A and B(IC50: 6.95 μg/m L and 7.48 μg/m L), the spray-dried microcapsules(IC50: 8.89–15.63 μg/m L) and the freeze-dried microcapsules(IC50: 11.83–23.36 μg/m L). The tinctures and microcapsules were proved to be bioactive against gram-positive and gram-negative bacteria with inhibition halos superior to 10 mm at concentration of 200 μg/m L and MIC values of 135.87–271.74 μg/m L using gram-positive strain and 271.74–543.48 μg/m L using gram-negative strain. The tinctures and microcapsules of the red propolis have a potential application for nutraceutical products.

关键词： Red propolis Tinctures Microcapsules Isoflavonoids LC/ESI/FTMS/Orbitrap Antioxidant activity Antibacterial activity

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Energetic-protein supplementation in the last 60 days of gestation improves performance of beef cows grazing tropical pastures

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Journal of Animal Science and Biotechnology 2018年第1期9卷 208-216页

作者： Aline Gomes da silva Mário Fonseca Paulino Edenio Detmann Henrique Jorge Fernandes Lincoln da silva Amorim Román Enrique Maza Ortega Victor Valério de Carvalho Josilaine Aparecida da costa Lima Felipe Henrique de Moura Mariana Benevides Monteiro Jéssika Almeida Bitencourt Universidade Federal de Vicosa VicosaMinas Gerais 36570-000Brazil Universidade Federal de Mato Grosso do Sul Campo GrandeMato Grosso do Sul 79074-460Brazil Universidade Estadual de Mato Grosso do Sul AquidauanaMato Grosso do Sul 79200-000Brazil Biotran Biotecnologia e Treinamento em Reproducao Animal AlfenasMinas Gerais 37130-000Brazil Universidade Federal do Acre Rio BrancoAcre 69920-900Brazil

Background： Nutrition is one of the most important factors that affect animal performance, and it therefore also impacts on financial results in beef systems. In this way, finding the best strategy for feeding supplements is of paramount importance. Aiming to evaluate the effect of supplement feeding strategies for beef cows in the last third of gestation, two experiments were conducted. In Experiment 1, 35 pregnant Nellore cows were assigned to a completely randomized design with four treatments： control, which received no supplement; supplementation for the last 30 d of gestation（30-d; 3.0 kg/d）; supplementation for the last 60 d of gestation（60-d; 1.5 kg/d）; or supplementation for the last 90 d of gestation（90-d; 1.0 kg/d）. All supplemented treatments received the same total amount of supplement throughout the experiment： 90 kg（20% of crude protein）. A second experiment（Experiment 2） was delineated to evaluate the effects of the amounts offered in Experiment 1 on intake and metabolism. Four multiparous pregnant Nellore cows were assigned to a 4 × 4 Latin square design, with periods of15 d ***： There was a linear effect of the number of days of supplementation on calving body weight（BW; P 〈 0.05）and a quadratic effect on BW change from parturition to d 31 post-calving（P 〈 0.05）, with cows on the 60-d strategy losing less BW post-calving. No difference was found in offspring birth BW（P 〉 0.10）. A significant linear effect on interval from parturition to conception（P 〈 0.05） was observed, with the highest calving to conception interval being observed in the 90-d strategy. The level of supplementation did not affect forage intake or neutral detergent fiber digestibility（P 〉 0.10）. Nitrogen excreted through urine tended to increase linearly with the level of supplementation（P 〈 0.10）.Conclusion： Providing 1.5 kg of supplement during the last 60 d of gestation improves cow performance after calving, reducing the magnitude of BW lost, and reduces the number of

关键词： Flushing Nutrition Parturition Reproduction

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GO FAIR Brazil:A Challenge for Brazilian data Science

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data Intelligence 2020年第1期2卷 238-245,316,317页

作者： Luana Sales Patricia Henning Viviane Veiga Maira Murrieta costa Luis Fernando Sayao Luiz Olavo Bonino da silva Santos Luis Ferreira Pires Instituto Brasileiro em Informacao em Ciencia e Tecnologia Rio de Janeiro-RJ22290-160Brazil Universidade Federal do Estado do Rio de Janeiro Rio de Janeiro-RJ22290-240Brazil Fundacao Oswaldo Cruz Rio de Janeiro-RJ21040-900Brazil Ministerio da Ciencia TecnologiaInovacoes e ComunicacoesEsplanada dos MinisteriosBloco R-BrasiliaDFCEP 70067-900Brazil Comissao Nacional de Energia Nuclear Rua Gal.Severianon 90 Bairro:BotafogoCEP 22290-901-Rio de JaneiroBrazil GO FAIR International Support&Coordination Office(GFISCO) Leiden 2333 AAThe Netherlands University of Twente Enschede 7522 NHThe Netherlands

The FAIR principles,an acronym for Findable,Accessible,Interoperable and Reusable,are recognised worldwide as key elements for good practice in all data management *** understand how the Brazilian scientific community is adhering to these principles,this article reports Brazilian adherence to the GO FAIR initiative through the creation of the GO FAIR Brazil Office and the manner in which they create their implementation *** contextualise this understanding,we provide a brief presentation of open data policies in Brazilian research and government,and finally,we describe a model that has been adopted for the GO FAIR Brazil implementation *** Brazilian Institute of Information in Science and Technology is responsible for the GO FAIR Brazil Office,which operates in all fields of knowledge and supports thematic implementation ***,GO FAIR Brazil-Health is the first active implementation network in operation,which works in all health domains,serving as a model for other fields like agriculture,nuclear energy,and digital humanities,which are in the process of adherence *** report demonstrates the strong interest and effort from the Brazilian scientific communities in implementing the FAIR principles in their research data management practices.

关键词： FAIR principles GO FAIR GO FAIR Brazil Open Science Research data

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Influence of broken kernels content on soybean quality during storage

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Grain & Oil Science and Technology 2024年第2期7卷 105-112页

作者： Lazaro da costa Correa Canizares Cesar Augusto Gaioso Newiton da silva Timm Silvia Leticia Rivero Meza Adriano Hirsch Ramos Maurício de Oliveira Everton Lutz Moacir Cardoso Elias Department of Agroindustry Science and Technology Federal University of PelotasPelotasRio Grande do Sul 96010-900Brazil Information and Communication Technological Axis Federal Institute of EducationScienceand Technology FarroupilhaCampus PanambiPanambiRio Grande do Sul 98280-000Brazil

Although it is recognized that the post-harvest system is most responsible for the loss of soybean quality,the real impact of this loss is still *** regulation allows 15%and 30%of broken soybean for group I and group II(quality groups),***,the industry is not informed about the loss in the quality parameters of soybeans and its impacts during long-term ***,the objective was to evaluate the effect of the breakage kernel percentage of soybean stored for 12 *** of 15% of breakage kernels did not affect soybean ***,content of 30% of breakage kernels affected significantly soybean quality,which was evidenced by the increase of up to 75% in moldy soybeans,72% in acidity,50% in leached solids,27% in electrical conductivity,and the decrease of up to 12% in soluble protein,6.4% in germination and 3.5% in thousand kernel weight after 8 months of *** the legislation establishes a percentage limit,it is recommended to store soybeans with up to 15% breakage *** the contrary,values higher than that can cause a significant reduction in soybean quality,resulting in commercial losses.

关键词： Soybean quality Breakage kernels Storage problems Grain defects Quality parameters

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Biochar influences the cane fields’microbiota and the development of pre-sprouted sugarcane seedlings

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Waste Disposal and Sustainable Energy 2023年第1期5卷 75-88页

作者： Bruna Cristina Pinto Adriana Barboza Alves Osania Emerenciano Ferreira Gustavo Henrique Gravatim costa Magno Andréde Oliveira Augusto Cesar da silva Bezerra Alan Rodrigues Teixeira Machado Postgraduate Program in Environmental Sciences State University of Minas GeraisFrutal UnityFrutalMinas Gerais38202-436Brazil Department of Agricultural and Biological Sciences State University of Minas GeraisFrutal UnityFrutalMinas Gerais38208-436Brazil Postgraduate Program in Geotechnical Engineering Federal University of Ouro PretoOuro PretoMinas Gerais35400-000Brazil Department of Transport Engineering Federal Center for Technological Education of Minas GeraisBelo HorizonteMinas Gerais30421-169Brazil Department of Exact Sciences State University of Minas GeraisJoão Monlevade UnityJoão MonlevadeMinas Gerais35930-314Brazil

This research investigates the soil conditioning effect of sugar cane fields with biochar produced from sugarcane *** influence on the physicochemical and microbiological conditions of the soil and the agronomic performance of sugarcane seedlings was *** this end,the biochar from sugarcane bagasse was produced by pyrolysis in a double drum oven and mixed with soil at rates of 0,1%,3%,and 5%(in weight).The experiment was installed in a greenhouse with two evaluation periods(30 days and 60 days)and five *** pot received a pre-sprouted cane seedling,and the analysis of colony-forming units(bacteria and fungi),physicochemical characteristics of the soil,and growth and development of sugarcane were performed per *** biochar showed a high fixed carbon content(72%)and a specific surface area estimated by the adsorption of methylene blue of 50 m2 g−***,its structure is porous and contains important nutrients(e.g.,CaO,K2O,and P2O5).In the periods evaluated,the applications of the 3%and 5%(in weight)rates of biochar reduced most of the soil fertility ***,the chemical analyses indicated that the sugarcane field soil collected already possessed high *** microbiota was influenced,but only the application of the 3%(in weight)rate at 60 days after planting showed a significant positive effect on the number of bacteria forming units,with an increase of approximately 385%.On the other hand,no significant positive effect on sugarcane development was ***,biochar application in high-fertility sugarcane plantation soil did not result in gains for sugarcane development in the periods evaluated.

关键词： Soil Biometry Microbiology Double drum oven Biochar

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Current advances in solid free-form techniques for osteochondral tissue engineering

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Bio-Design and Manufacturing 2018年第3期1卷 171-181页

作者： Joao Bebiano costa Joana silva-Correia Rui Luis Reis Joaquim Miguel Oliveira B's Research Group I3Bs - Research Institute onBiomaterials Biodegradables and Biomimetics University ofMinho Headquarters of the European Institute of Excellenceon Tissue Engineering and Regenerative Medicine AveParkParque de Ciencia e Tecnologia Zona Industrial da Gandra4805-017 Barco Guimaraes Portugal ICVS/3B's-PT Government Associate Laboratory Braga Guimarfies Portugal The Discoveries Centre for Regenerative and PrecisionMedicine Headquarters at University of MinhoAvepark 4805-017 Barco Guimaraes Portugal

Osteochondral （OC） lesions are characterized by defects in two different zones, the cartilage region and subchondral bone region. These lesions are frequently associated with mechanical instability, as well as osteoarthritic degenerative changes in the knee. The lack of spontaneous healing and the drawbacks of the current treatments have increased the attention from the scientific community to this issue. Different tissue engineering approaches have been attempted using different polymers and different scaffolds＇ processing. However, the current conventional techniques do not allow the full control over scaffold fabrication, and in this type of approaches, the tuning ability is the key to success in tissue regeneration. In this sense, the researchers have placed their efforts in the development of solid free-form （SFF） techniques. These techniques allow tuning different properties at the micro-macro scale, creating scaffolds with appropriate features for OC tissue engineering. In this review, it is discussed the current SFF techniques used in OC tissue engineering and presented their promising results and current challenges.

关键词： Solid free-form Osteochondral Tissue engineering Scaffolds

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