994 resultados para Fiestas Bilbao 1828


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Après avoir complété la nomenclature par lettres des différents caryotypes des musaraignes du genre Sorex rattachées au groupe araneus, lequel est caractérisé par un trivalent sexuel, les auteurs discutent le statut taxonomique du type A. Sur la base de l'examen cytologique et morphologique de 3 individus, récoltés dans la localité type de Sorex coronatus Millet, 1828,ils proposent ce nom pour désigner l'espèce chromosomique A. Sorex gemellus Ott, 1968 tombe alors en synonymie. L'espèce est décrite et le statut des sous-espèces reconnues dans son aire de distribution examiné.

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Descripció del projecte. S’han de destacar les innovacions i aportacions a l’avanç del coneixement que incorpora el projecte. Es poden incorporar memòries, plànols, fotografies, esbossos, etc. També l’adreça web si s’ha penjat més informació sobre el projecte a la web.

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Mittakaava laskettu janamittakaavasta

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The antimicrobial, hemagglutinating and toxic activities of the purple fluid of the sea hare Aplysia dactylomela are described. Intact or dialyzed purple fluid inhibited the growth of species of Gram-positive and Gram-negative bacteria and the action was not bactericidal but bacteriostatic. The active factor or factors were heat labile and sensitive to extreme pH values. The fluid preferentially agglutinated rabbit erythrocytes and, to a lesser extent, human blood cells, and this activity was inhibited by the glycoprotein fetuin, a fact suggesting the presence of a lectin. The fluid was also toxic to brine shrimp nauplii (LD50 141.25 µg protein/ml) and to mice injected intraperitoneally (LD50 201.8 ± 8.6 mg protein/kg), in a dose-dependent fashion. These toxic activities were abolished when the fluid was heated. Taken together, the data suggest that the activities of the purple fluid are due primarily to substance(s) of a protein nature which may be involved in the chemical defense mechanism of this sea hare.

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Kartta kuuluu A. E. Nordenskiöldin kokoelmaan