1000 resultados para Adanson, Michel (1727-1806) -- Portraits
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Collection : Théâtre contemporain illustré ; 129e et 130e livraisons
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Référence bibliographique : Rol, 60670
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Rhipicephalus sanguineus, commonly known as the brown dog tick, is one of the most widely distributed species of tick. In dogs, it can cause anemia and provide the transmission of pathogenic microorganisms such as Babesia canis, Ehrlichia canis, Hepatozoon canis, Anaplasma platys, and Mycoplasma haemocanis. To man, it can transmit the intracellular parasites Rickettsia rickettsii and Rickettsia conorii, the causative agents of the Rocky Mountain spotted fever in the Americas and Mediterranean and spotted fever in Europe and North Africa. Its control is performed by applying synthetic formulations composed of pyrethroids; however, continued use of these products results in environmental damage and acquisition of resistance. Alternatively, studies with botanical insecticides have been increasingly recurrent. Therefore, this study aimed to test the efficacy of essential oil of Tagetes patula, a ruderal species widely described in the literature for its insecticidal properties, in engorged females of R. sanguineus by the adults immersion test (AIT) and impregnated paper disk test (IPDT). The essential oil used, through gas chromatography coupled to mass spectrometry, revealed the presence of 55 compounds, being the 4-vinyl guaiacol and gamma terpinene the majority ones. The AIT compared to the IPDT was more efficient in inhibiting oviposition of tick; however, the eggs laid by the females submitted to saturated atmosphere with essential oil, from IPDT, not hatched, interrupted their development cycle. Besides being a pioneer work, the results presented here contributes to new researches, aiming the incorporation of essential oil in an acaricide for use in the environment. © 2013 Springer-Verlag Berlin Heidelberg.
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Written in one column (in black and red ink) and two columns (in red ink), 29 lines per page.
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Mode of access: Internet.
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Cover title: The engraved portraits & fancy subjects painted by Thomas Gainsborough, R.A., and George Romney.
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Gérard de Nerval.-- Madame Émile de Girardin.-- Henri Heine.-- Charles Baudelaire.-- Achim d'Arnim.
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Issued in 3 parts. The second (p. [81]-158) has special t.p.: A catalogue of the remaining part of this collection of prints ... which will be sold by Mr. Greenwood ... on Tuesday the 21st day of February, 1786, and seventeen following days. The third (p. 159-169) has special t.p.: A continuation, of a most curious, scarce, valuable, and fine collection of all those persons who ... are entitled to a place in the English school ... [sold March 14-15, 1786].