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Layered double hydroxides: matrices for storage and source of boron for plant growth
(Clay Minerals, 2019)
Susceptibility of the cattle tick Boophilus microplus (Acari: Ixodidae) to isolates of the fungus Beauveria bassiana
(2001-07-04)
The susceptibility of the tick Boophilus microplus to Beauveria bassiana was evaluated by inoculating eggs, larvae and engorged females of the tick with five fungal isolates at concentrations of 106, 107 and 108 conidia/ml. ...
Cocaine mutagenicity and hepatocarcinogenicity evaluations in rodents
(Wiley-Blackwell, 1998-01-01)
The mutagenicity (clastogenicity) and the carcinogenicity (promoting potential) of cocaine were evaluated, respectively, by the mouse bone marrow micronucleus test (study I) and by the initiated rat liver bioassay (study ...
Sobrevivência de operárias de Atta sexdens rubropilosa Forel (Hymenoptera: Formicidae) isoladas do formigueiro e alimentadas com dietas artificiais
(Sociedade Entomológica do Brasil, 1997-04-01)
Avaliou-se dietas artificiais, para operárias médias de Atta sexdens rubropilosa Forel isoladas de formigueiros de laboratório e de campo. Os bioensaios foram realizados com 6 formigas/placa de Petri, sendo 10 placas/tratamento, ...
PLA and Organoclays Nanocomposites: Degradation Process and Evaluation of ecotoxicity Using Allium cepa as Test Organism
(2013-07-17)
In this study, nanocomposites of PLA and organoclays Cloisite 20A and Cloisite 30B were prepared by the melt intercalation method and the obtained samples were characterized by transmission electron microscopy (TEM). Since ...
Bioactive guanidine alkaloids from Pterogyne nitens
(1995-12-01)
Bioactivity-guided fractionation of a methanolic CHCl 3 extract of the leaves of Pterogyne nitens afforded the known guanidine alkaloid pterogynidine [2] and three new guanidine alkaloids, nitensidines A [3], B [4], and C ...
Study of Toxoplasma infection in Brazilian wild mammals: Serological evidence in Dasypus novemcinctus Linnaeus, 1758 and Euphractus sexcinctus Wagler, 1830
(Elsevier B.V., 2006-01-15)
Toxoplasmosis is a worldwide distributed zoonosis that affects man and most warm-blooded animals, with a great economic impact in animal and public health. Serum samples from nine 9-banded armadillos, three 6-banded ...
Toxicity of hydramethylnon to the leaf-cutting ant Atta sexdens rubropilosa forel (hymenoptera: Formicidae)
(2013-08-05)
Since 2009, when sulfluramid was listed in annex B of the Stockholm Convention's Persistent Organic Pollutants, effort has been made to search for other active ingredients to use in baits for controlling leaf-cutting ants ...