نتایج جستجو برای: mammalia
تعداد نتایج: 2672 فیلتر نتایج به سال:
Here we report the occurrence of Ancylostoma (Ancylostoma) buckleyi (Le Roux and Biocca, 1957) (Nematoda: Ancylostomatidae) in the small intestine of Pampas foxes (Lycalopex gymnocercus) (Mammalia: Canidae). This fox is the most abundant native carnivore in southern South America, where it inhabits grasslands, open woodlands and areas highly modified by extensive ranching and agricultural activ...
Expression of transcriptor factors MyoD, Myf5, myogenin and MRF4 forms the basis of myogenesis. In Acrania, Pisces and Amphibia, as in Aves, myogenesis is initiated by MyoD. In Mammalia expression of Myf5 initiates myogenesis. Signal proteins Wnt and Shh induce the expression of genes encoding for MyoD or Myf5. In fishes and amphibians expression of MyoD starts in non-segmented mesoderm and the...
The extent to which bacterial ribosomes and the significantly larger eukaryotic ribosomes share the same mechanisms of ribosomal elongation is unknown. Here, we present subnanometer resolution cryoelectron microscopy maps of the mammalian 80S ribosome in the posttranslocational state and in complex with the eukaryotic eEF1A⋅Val-tRNA⋅GMPPNP ternary complex, revealing significant differences in t...
In the present study, relation between bone, cartilage and titanium was analyzed. According to established methodology, homogeneous grafts conserved in alcohol 100 GL for 7 days were used, after fixation of a homologous graft above bone cortical rat femur (Rattus novergicus var. Albinus rodentia mammalia cepa Wistar), using screw implant. The animals sacrificed at 10, 20, 30 60 surgery. To hist...
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