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| 1 | 垃圾堆肥中重金属离子研究显示文摘通过跟踪1个快速垃圾堆肥处理过程,分析了该过程中总重金属离子浓度变化,并用连续萃取法分析了可被植物吸收和利用的金属离子浓度在垃圾堆肥处理中的变化情况.结果证明,通过垃圾堆肥过程,不可能降低重金属离子的含量。 | 蒋晓惠 Baffi Claudio Sandro Silva | 1999 | 四川师范学院学报(自然科学版)1999,20,1: | 15 |
| 2 | Tribological characterization of PVD coatings for cutting tools显示文摘 | Sandro Cardoso Santos Wisley Falco Sales flavio Jose da Silva | 2004 | Surface and Coatings Technology2004,184,: | 1 |
| 3 | Cytotoxic lignans from the stems of Styrax camporum (Styracaceae)显示文摘 | Helder L. Teles Jefferson P. Hemerly Patricia M. Pauletti Jose R. C. Pandolfi Angela R. Araujo Sandro R. Valentini M. Claudia M. Young Vanderlan Da S. Bolzani Dulce H. S. Silva | 2005 | Natural Product Research2005,,4: | 1 |
| 4 | Tribological characterization of PVD coatings for cutting tools 显示文摘 | Sandro Cardoso Santos Wisley Falco Sales flavio Jose da Silva | 2004 | Surface and Coatings Technology2004,184,: | 1 |
| 5 | Tribological characterization of PVD coatings for cutting tools 显示文摘 | Sandro Cardoso Santos Wisley Falco Sales flavio Jose da Silva | 2004 | Surface and Coatings Technology2004,184,: | 1 |
| 6 | Development of a root colonization hioassay for rapid screening of rhizobaeteria for potential biocont rol agents显示文摘 | Silva H Sandro A | 2003 | J Phytopathol2003,151,: | 1 |
| 7 | Reference Genes for the Normalization of Gene Expression in Eucalyptus Species显示文摘 | Luisa Abruzzi de Oliveira M 1 C B Fernanda Macedo Bastolla Sandro da Silva Camargo | 2012 | Plant Cell Physiol2012,53,: | 1 |
| 8 | Humidity Diffusion on Jute/Polyester Laminated Composites and Its Effects on Mechanical Properties显示文摘Jute is a natural fiber widely used as reinforcement in composites due to its high tensile strength and stiffness,but they can easily absorb water and have their physical properties compromised.The water absorption properties of jute/polyester composites are evaluated according to ASTM D 570 and the effect of humidity in the composite mechanical behavior is also analyzed.The composite showed a pseudo-Fickian behavior and gained 13.37%in weight after the test.It also lost tensile strength and elasticity modulus,and increased its specific deformation.Scanning electron microscope images showed that wet specimens were more subject to cracks,voids and fiber pullout than dry specimens.Failures produced by water diffusion in composite and polymer plasticization,added to breakdown in the fibers’cellulosic structures,justify the change in mechanical properties due to water absorption. | Rafael Pacheco Evangelista Victor Antunes Silva Barbosa Larissa Rocha Reis Peter Menezes dos Reis Jr. Carlos Alberto França Jr. Mirtânia Antunes Leão Sandro Fábio César | 2021 | 材料科学与工程(中英文B版)2021,11,4: | 0 |
| 9 | Cell Viability of Byrsonima intermedia A Juss Calli显示文摘 | Luciano Coutinho Silva Renato Paiva Daiane Peixoto Vargas Diogo Pedrosa Correa da Silva Rairys Cravo Herrera Sandro Barbosa Antonio Paulino da Costa Netto | 2012 | Journal of Agricultural Science and Technology(B)2012,2,6: | 0 |
| 10 | Evaluation of Partial Sand Replacement by Coffee Husks in Concrete Production显示文摘Waste production in the industrial sector generates environmental impacts.Thus,it is necessary to search for means to reduce and reuse these residues.Brazil is the largest coffee producer and exporter worldwide,with this being one of the main products in the consumer market,at a production of 30 million sacks per year.Coffee production generates large amounts of by-products,such as husks.Therefore,the reuse of this residue is a good alternative for its disposal.In view of this fact,partial sand substitution by coffee husks in concrete production was evaluated,in order to reduce sand use in concrete manufacturing.For specimen production,traits were formulated by replacing sand by coffee husks at 5%.A 0.5:0.5:1:0.5(gravel:sand:cement:water)ratio was considered for specimen preparation.To evaluate mechanical compressive strength,assays were performed after 7,14,21 and 28 days,using a hydraulic press with 80 MPa capacity.Partial sand substitution by the coffee residue was considered satisfactory,obtaining a compressive strength of±20 MPa,higher than the resistance obtained for the concrete produced without sand replacement.Coffee husk use did not compromise material resistance. | Alan Carlos de Almeida Matheus Alves Lima da Silva Queren Cabral de Abreu Adriana Lau da Silva Martins Sandro Pereira Ribeiro Cristiane de Souza Siqueira Pereira | 2019 | Journal of Environmental Science and Engineering(B)2019,8,4: | 0 |
| 11 | Gain of transcription factor binding sites is associated to changes in the expression signature of human brain and testis and is correlated to genes with higher expression breadth显示文摘The gain of transcription factor binding sites(TFBS) is believed to represent one of the major causes of biological innovation.Here we used strategies based on comparative genomics to identify 21,822 TFBS specific to the human lineage(TFBS-HS),when compared to chimpanzee and gorilla genomes. More than 40%(9,206) of these TFBS-HS are in the vicinity of 1,283 genes.A comparison of the expression pattern of these genes and the corresponding orthologs in chimpanzee and gorilla identified genes differentially expressed in human tissues. These genes show a more divergent expression pattern in the human testis and brain, suggesting a role for positive selection in the fixation of TFBS gains. Genes associated with TFBS-HS were enriched in gene ontology categories related to transcriptional regulation, signaling, differentiation/development and nervous system.Furthermore, genes associated with TFBS-HS present a higher expression breadth when compared to genes in general. This biased distribution is due to a preferential gain of TFBS in genes with higher expression breadth rather than a shift in the expression pattern after the gain of TFBS. | Vandeclécio Lira da Silva André Mauricio Ribeiro dos Santos Wilfredo Blanco Sandro José de Souza | 2019 | Science China(Life Sciences)2019,62,4: | 0 |
| 12 | Characterization of Pro-embryogenic Calli and Somatic Embryogenesis of Byrsonima intermedia A. Juss.显示文摘 | Luciano Coutinho Silva Renato Paiva Diogo Pedrosa Correa Da Silva Sandro Barbosa Rairys CravoHerrera Lisete Chamma Davide Patricia Duarte De Oliveira Paiva | 2012 | Journal of Agricultural Science and Technology(A)2012,2,8: | 0 |
| 13 | In vitro antileishmanial effects of Physalis angulata root extract on Leishmania infantum显示文摘Objective: In the present study, we evaluated the effects of the aqueous extract of Physalis angulata root(AEPa) on Leishmania infantum proliferation, morphology, and the driving mechanism in leishmanicidal activity and modulatory action on macrophages.Methods: L. infantum promastigotes were treated with 50 and 100 μg/mL AEPa for 72 h and then antipromastigote assay was performed by counts in a Newbauer chamber, morphological changes were analyzed by transmission electron microscopy and the mechanism of the leishmanicidal activity was detected. In addition, macrophages were infected with L. infantum and were used to evaluate anti-amastigote activity of AEPa and effects of AEPa on cytokine secretion after 72-hour treatment.Results: Treatment with AEPa reduced the numbers of L. infantum promastigotes(50% inhibitory concentration(IC_(50))= 65.9 μg/mL; selectivity index(SI) = 22.1) and amastigotes(IC_(50)=37.9 μg/mL; SI = 38.5)compared with the untreated control. Amphotericin B reduced 100% of the promastigote numbers after72 h of treatment(IC_(50) = 0.2 μg/mL). AEPa induced several morphological changes and increased the production of reactive oxygen species and apoptotic death in promastigotes after treating for 72 h.AEPa(100 μg/mL) promoted tumor necrosis factor-α secretion in macrophages infected with L. infantum after 72 h of treatment, but did not induce an increase in this cytokine in noninfected macrophages. In addition, AEPa showed no cytotoxic effect on J774-A1 cells(50% cytotoxic concentration >1000 μg/mL).Conclusion: AEPa presented antileishmanial activity against the promastigotes and amastigotes of L. infantum without macrophage cytotoxicity; these results show that natural products such as P. angulata have leishmanicidal potential and in the future may be an alternative treatment for leishmaniasis. | Bruno Jose Martins Da Silva Sandro Wilson Gomes Pereira Ana Paula Drummond Rodrigues Jose Luiz Martins Do Nascimento Edilene Oliveira Silva | 2018 | Journal of Integrative Medicine2018,16,6: | 0 |
| 14 | Study of the Addition Effect of Glycerin Originated from Biodiesel Production at Compressive Strengh of Concrete显示文摘The residues generated by big industries are directly and gradually impacting the environment,and some of these have not been fully tapped in a proper destiny.Therefore,some researches and studies about minimalizing the residue’s disposal become viable.The biodiesel industries have been producing increasingly glycerin as the main residue.Based on that,it is considered as a good option of the reutilization of this material,for example,the merging at the concrete’s production.Considering this argument,the addition’s effects of glycerin were evaluated as well as the influence of its adding at the compressive strength.The proof-bodies were formulated according to the trace in proportion of 1:1:2(cement,sand and gravel,respectively)and 0.4 L of glycerin added at the final trace.On the bases of the survey results,it was verified that the proof-bodies without the addition of glycerin presented average mechanical resistance of 12.2±1.95 MPa after twenty eight(28)days of curing,and mechanical resistance of the proof-bodies with the addition achieved resistance of 26.2±1.62 MPa,suggesting influence on the hydration kinetics of the concrete. | Matheus Alves Lima daSilva Alan Carlos de Almeida Brenda Fernandes deFreitas Pedro Luís Millen Penedo Sandro Pereira Ribeiro GustavoJoséda CostaGomes Mayara Lisboa Santos Adriana Lau da Silva Martins Cristiane de Souza Siqueira Pereira | 2020 | Journal of Environmental Science and Engineering(A)2020,9,3: | 0 |