Browsing IMar - Artigos by Issue Date
Now showing items 1-20 of 220
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Padrões de violência domiciliar associada ao uso de álcool no Brasil
(Rev. Saúde Pública [online], 2009-01-28) -
The dynamics of fluorescent dissolved organic matter in the Paranaguá estuarine system, Southern Brazil
(Inst Oceanografico, Univ Sao Paulo, 2011-10-01)The aim of this study was to investigate the dynamics of the fluorescent dissolved organic matter (FDOM) in Paranagua Estuarine System (PES) as to infer about the contribution of allochthonous FDOM to the estuarine waters ...
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Effects of Dietary Copper on Life-History Traits of a Tropical Freshwater Cladoceran
(Springer, 2012-05-01)Life-history parameters of Ceriodaphnia cornuta (Cladocera: Daphniidae) fed on Pseudokirchneriella subcapitata (Chlorophyceae) exposed to different copper concentrations were investigated. C. cornuta individuals were reared ...
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Abundance of biofilm on intertidal rocky shores: Can trampling by humans be a negative influence?
(Elsevier B.V., 2012-08-01)Trampling by human visitors to rocky shores is a known stressor on macroorganisms. However, the effects of trampling on rocky intertidal biofilm, a complex association of microorganisms of ecological importance in coastal ...
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Biological effects of environmentally relevant concentrations of the pharmaceutical Triclosan in the marine mussel Perna perna (Linnaeus, 1758)
(Elsevier B.V., 2012-09-01)Triclosan (5-Chloro-2-(2,4-dichlorophenoxy) phenol) is an antibacterial compound widely employed in pharmaceuticals and personal care products. Although this emerging compound has been detected in aquatic environments, ...
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The application of biochemical responses to assess environmental quality of tropical estuaries: field surveys
(Royal Soc Chemistry, 2012-10-01)A battery of biomarkers of exposure (EROD, DBF, GST and GPx) and effect (lipid peroxidation and DNA damage - strand breaks) were analyzed in gill tissues from caged and native oysters Crassostrea rhizophorae exposed to two ...
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Organochlorines and metals induce changes in the mitochondria-rich cells of fish gills: An integrative field study involving chemical, biochemical and morphological analyses
(Elsevier B.V., 2013-01-15)Through integrating chemical, biochemical and morphological analyses, this study investigated the effects of multiple pollutants on the gill mitochondria-rich cells (MRCs) in two fish species, Astyanax fasciatus and Pimelodus ...
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Food selection by a mangrove crab: temporal changes in fasted animals
(Springer, 2013-02-01)The feeding choices of the mangrove crab Ucides cordatus for various mangrove plant leaves (Avicennia schaueriana, Laguncularia racemosa, and Rhizophora mangle) at different ages (mature, senescent pre-abscission, and ...
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Integrated quality assessment of sediments from harbour areas in Santos-Sao Vicente Estuarine System, Southern Brazil
(Elsevier B.V., 2013-09-20)Santos-Sao Vicente Estuarine System is a highly populated coastal zone in Brazil and where it is located the major port of Latin America. Historically, port activities, industrial and domestic effluents discharges have ...
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Using a Caesalpinia echinata Lam. protease inhibitor as a tool for studying the roles of neutrophil elastase, cathepsin G and proteinase 3 in pulmonary edema
(Elsevier B.V., 2013-12-01)Acute lung injury (ALI) is characterized by neutrophil infiltration and the release of proteases, mainly elastase (NE), cathepsin G (Cat G) and proteinase 3 (PR3), which can be controlled by specific endogenous inhibitors. ...
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Photoluminescence and Magnetism in Mn2+-Doped ZnO Nanostructures Grown Rapidly by the Microwave Hydrothermal Method
(Amer Chemical Soc, 2013-12-12)Zn1-xMnxO nanostructures were synthesized via the microwave-assisted hydrothermal method, which rapidly produces particles of controlled size and morphology. Samples were analyzed considering the effects of manganese ion ...
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Considerations about the recommendations of the Commission on the Limits of the Continental Shelf on the Amazon fan
(Instituto Brasileiro de Relações Internacionais, 2014-01-01)In 2004, Brazil submitted to the Commission on the Limits of the Continental Shelf (CLCS) a Submission for the outer limit of the Brazilian continental shelf for its extension beyond the limits of 200 nautical miles. In ...
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Utilização de Sistema de Informação Geográfica como ferramenta para gestão do monitoramento da qualidade do ar na Região Metropolitana do Rio de Janeiro
(Associação Brasileira de Engenharia Sanitária e Ambiental - ABES, 2014-01-01)The concern with the air quality management in the city of Rio de Janeiro has increased in recent last years due to the great events that this city will receive in the near future. The use of a Geographic Information System ...
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Using Urban Streams as Drinking Water: the Potential Risk in Respect to Polycyclic Aromatic Hydrocarbons (PAHs) Content in Sediments
(Taylor & Francis Ltd, 2014-01-01)Several polycyclic aromatic hydrocarbons are considered carcinogenic and mutagenic. 16 of these compounds are listed as priority control pollutants by the USEPA. the present study aimed at the evaluation of the presence ...
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Thermoluminescence features of MgB4O7:Tb phosphor
(Elsevier B.V., 2014-02-01)In the present work, polycrystalline samples of MgB4O7 doped with terbium at different concentrations were synthesized using the solvent evaporation method. the sample doped with 1 mol% of Tb presented the highest luminescence ...
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Cylindrospermopsis raciborskii (Cyanobacteria) exudates: Chemical characterization and complexation capacity for Cu, Zn, Cd and Pb
(Elsevier B.V., 2014-02-01)Cylindrospermopsis raciborskii is a cosmopolitan and potentially toxic planktonic Cyanobacteria that produces and exudes copious amounts of dissolved organic materials. This organism dominates the eutrophic reservoir Barra ...
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OSL dating of sediments from Negro and Solimoes rivers - Amazon, Brazil
(Elsevier B.V., 2014-02-01)In this work, the OSL dating results of Quaternary fluvial deposits from the confluence of Negro and Solimoes rivers were studied. the equivalent doses (D-e) of sediments were obtained using a Single Aliquot Regeneration ...
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The Naked Coral'' Hypothesis Revisited - Evidence for and Against Scleractinian Monophyly
(Public Library Science, 2014-04-16)The relationship between Scleractinia and Corallimorpharia, Orders within Anthozoa distinguished by the presence of an aragonite skeleton in the former, is controversial. Although classically considered distinct groups, ...
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The influence of allochthonous macroalgae on the fish communities of tropical sandy beaches
(Elsevier B.V., 2014-05-01)This study evaluates the hypothesis that detached macroalgae (drift algae) influence the structure of fish communities in the surf-zones of two tropical sandy beaches from the central coast of Brazil. Surf-zone seine hauls ...
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Confiabilidade nas estimativas do regime do vento fornecidas pelo brams no estado de Alagoas: influência do aninhamento e da resolução horizontal de grades
(Sociedade Brasileira de Meteorologia, 2014-06-01)Observational data obtained at two wind towers located at the Alagoas State (Northeast of Brazil -NEB) were used to evaluate the influence of horizontal grid setup on the reliability of wind estimates provided by the ...
