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| 1 | Characterization of soil fauna under the influence of mercury atmospheric deposition in Atlantic Forest, Rio de Janeiro, Brazil显示文摘The increasing levels of mercury(Hg) found in the atmosphere arising from anthropogenic sources, have been the object of great concern in the past two decades in industrialized countries. Brazil is the seventh country with the highest rate of mercury in the atmosphere.The major input of Hg to ecosystems is through atmospheric deposition(wet and dry), being transported in the atmosphere over large distances. The forest biomes are of strong importance in the atmosphere/soil cycling of elemental Hg through foliar uptake and subsequent transference to the soil through litter, playing an important role as sink of this element. Soil microarthropods are keys to understanding the soil ecosystem, and for such purpose were characterized by the soil fauna of two Units of Forest Conservation of the state of the Rio de Janeiro, inwhich one of the areas suffer quite interference from petrochemicals and industrial anthropogenic activities and other area almost exempts of these perturbations. The results showed that soil and litter of the Atlantic Forest in Brazil tend to stock high mercury concentrations, which could affect the abundance and richness of soil fauna, endangering its biodiversity and thereby the functioning of ecosystems. | Andressa Cristhy Buch Maria Elizabeth Fernandes Correia Daniel Cabral Teixeira Emmanoel Vieira Silva-Filho | 2015 | Journal of Environmental Sciences2015，27，6： | 3 |
| 2 | Heavy metal contamination in coastal sediments and soil near the Brazilian antarctic station,King George Island显示文摘 | Isaac R Santos Emmanoel V | 2005 | Marine Pollution Bulletin2005，50，： | 1 |
| 3 | Elevated rates of organic carbon, nitrogen, and phosphorus accumulation in a highly impacted mangrove wetland显示文摘 | Sanders Christian J Eyre Bradley D Santos Isaac R Machado Wilson Luiz-Silva Wanilson Smoak Joseph M Breithaupt Joshua L Ketterer Michael E Sanders Luciana Marotta Humberto Silva-Filho Emmanoel | 2014 | Geophysical Research Letters2014，，7： | 1 |
| 4 | Chemical constituents isolated from the bark of Guatteria blepharophylla (Annonaceae) and their antiproliferative and antimicrobial activities显示文摘 | Emmanoel V C Francisco D A Maria L B P | | 0，，06： | 1 |
| 5 | A Pyrimidineα-carboline and other alkaloids from Annona foetida with antileishmanial activity显示文摘 | EMMANOEL V C PINHEIRO M L B XAVIER C M | 2006 | J Nat Prod2006，69，： | 1 |
| 6 | Shirking, sharing risk and shelving; therole of university license contracts 显示文摘 | emmanOel DECHENAUX MARIE THURSBY JER-RY THURSBY | 2009 | International Jour-nal of Industrial Organization2009，27，： | 1 |
| 7 | A Pyrimidine-a-carboline and Other Alkaloids from Annona foetida with Antileishmanial Activity显示文摘 | EMMANOEL V C PINHEIRO M L B XAVIER C M | 2006 | J Nat Prod2006，69，： | 1 |
| 8 | Heavy metal contamination in coastal sediments and soil near the Brazilian Antarctic Station,King George Island显示文摘 | Isaac R Santos Emmanoel V | 2005 | Marine Pollution Bulletin2005，，： | 1 |
| 9 | Heavy metal contamination in coastal sediments and soils near the Brazilian Antarctic Station, King George Island 显示文摘 | Isaac R Santos Emmanoel V Silva-Filho Carlos E G R Schaefer | 2005 | Marine Pollution Bulletin2005，50，2： | 1 |
| 10 | Non-Polar Chemical Constituents of Atemoya and Evaluation of the Cytotoxic and Antimicrobial Activity显示文摘This study aimed to identify the chemical composition of essential oil from fruits(EOAF)and the hexanic crude extract from aerial parts(At-Hex)of atemoya(Annona cherimola x Annona squamosa),a hybrid belonging to the Annonaceae family.Cytotoxic and antimicrobial activity was also evaluated.OEAF was obtained by hydrodistillation using a Clevenger apparatus,and their composition was analyzed by gas chromatography-mass spectrometry(GC-MS)analyses.Cytotoxicity was tested against human tumor cell lines HCT-116(colon carcinoma),SF-295(glioblastoma),OVCAR-8(ovarian carcinoma)and HL60(leukemia)using 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide(MTT)assay,while antimicrobial activity was conducted by bioauthography method against eleven microorganisms strains.Twenty-four compounds were identified in the EOAF and twenty-nine in At-Hex.The monoterpenes linalool(25.70%),α-pinene(10.38%),β-pinene(9.12%),transocimene(7.43%),and the sesquiterpene bicyclogermacrene(12.58%)were the major constituents of EOAF,whereas the sesquiterpene spathulenol(13.91%)was the main compound of At-Hex.At-Hex showed a high cytotoxicity against SF-295(glioblastoma).These findings show an important chemotaxonomic contribution for the Annonaceae family,mainly for the Annona genus.Atemoya proved to be a promising source of substances with potential cytotoxic activity. | Suzana Vieira Rabêlo Fernanda Granja da Silva Oliveira Michele Miriam Calixto de Lira Livia Macedo Dutra Adilson Sartoratto Marta Cristina Teixeira Duarte Maria Claudia dos Santos Luciano Maria Francilene Souza Silva Cláudia doÓPessoa Manoel Odorico de Moraes Filho Emmanoel Vilaça Costa Jackson Roberto Guedes da Silva Almeida | 2021 | Phyton-International Journal of Experimental Botany2021，90，3： | 0 |
| 11 | 德雷克方程半世纪 还找外星人?显示文摘美国弗吉尼亚州绿岸(GreenBank)射电天文台小会议室。弗兰克·德雷克手中的粉笔在黑板上滑动,写下一连串字母和符号:他每书写一项.按捺不住急切心情的听众就会窃窃私语一番。这天是1961年11月1日。提出方程的德雷克并没有翻天覆地的野心, | Emmanoel Monnier 缪伶超(编译) | 2012 | 新发现2012，，7： | 0 |
| 12 | Fractionation of rare earth and other trace elements in crabs,Ucides cordatus,from a subtropical mangrove affected by fertilizer industry显示文摘Fractionation of rare earth elements(REE) and other trace metal concentrations(Th, U, Cd,Cr, Cu, Ni, Pb, and Zn) between mangrove sediments and claw muscles and shells of male crabs(Ucides cordatus) from a subtropical estuary highly impacted by fertilizer industry activities was investigated. This is the first record of REE distribution in these organisms,and the results showed higher accumulations of these metals, U and Th in shells, probably related to the replacement of Ca during molting. Contents of Cd, Cr and Ni were similar in both tissues, but Cu, Zn and Pb were mostly accumulated in the claw muscle with concentrations above those considered safe for human consumption according to the Brazilian legislation. REE fractionation was different in the analyzed tissues being softer in the shells. The results provided evidences that the water absorbed during molting controls the chemistry of REE in shells. In contrast, the chemistry of REE in the claw muscle, in which was observed preferential absorption of light REE, is controlled by diet. REE fractionation obtained for the claw muscles was closely correlated to the observed in the contaminated substrate and in materials related to the production of phosphate fertilizers(contamination source), which supports their transference to this Ucides cordatus tissue without fractionation by the ingestion of sediments. Our results showed the potential use of crab tissues for monitoring REE and trace element sources in mangrove areas, with claw muscle exhibiting the contaminant source fingerprint. | Alice Bosco-Santos Wanilson Luiz-Silva Emmanoel Vieira da Silva-Filho Monique Dias Corrêa de Souza Elton Luiz Dantas Margareth Sugano Navarro | 2017 | Journal of Environmental Sciences2017，29，4： | 0 |
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