DNA methylation at tobacco telomeric sequences

Majerová et al. (Plant Mol Biol, 2011) have recently reported that a considerable fraction of cytosines at tobacco telomeres is methylated. Although the data presented in this report indicate that tobacco telomeric sequences undergo certain levels of DNA methylation, it is not clear whether the methylated sequences are at telomeres, at internal chromosomal loci or at both

Environnement graphique, pratiques et attitudes linguistiques à l'hôpital de Saint-Laurent du Maroni

Le but de cet article est d'interroger la politique linguistique de l'hôpital de Saint-Laurent - dans ses aspects explicites et implicites - en proposant une première description de l'usage public des langues à l'hôpital. Après avoir présenté quelques caractéristiques des populations (soignantes et soignées) en présence, on s'intéresse à l'environnement graphique de l'hôpital, aux pratiques écrites publiques, puis aux discours tenus par différents acteurs hospitaliers sur la prise en compte des langues des patients, enfin, on propose une description des pratiques orales présentes au sein de l'hôpital

The neotype of the type species of the neotropical iguanian genus Phymaturus : a critical commentary on a recent opinion of the International Commission on Zoological Nomenclature

The fundamental weakness of the Opinion 2118 (Case 3225) of the International Commission on Zoological Nomenclature is discussed. A former documented research established the Teiid identity of Lacerta palluma Molina 1782, a misidentified type species of the Iguanian genus Phymaturus, now confirmed by the Opinion. The holotype of the iguanian synonym Centrura flagellifer (Bell, 1843) is proposed as neotype of Phymaturus palluma (Molina, 1782), the misidentified type species of Gravenhorst 1837. Such a neotype should be named Phymaturus flagellifer (Bell, 1843) in agreement to the real taxonomic position of the Molina’s species, a Teiid Callopistes, a lacertilian genus strikingly distant from the iguanid genus Phymaturus.El Neotipo de la especie Tipo del iguánido neotropical género Phymaturus: comentario crítico acerca de una reciente opinión de la Comisión Internacional de Nomenclatura Zoológica. Se destaca la fragilidad argumental de la Opinión 2118 (Caso 3225) de la Comisión Internacional sobre Nomenclatura Zoológica. Una investigación inicial documentada estableció la identidad del Teiido Lacerta palluma Molina 1782, erróneamente identificada como especie Tipo del género iguánido Phymaturus, ahora confirmada por la Opinión. El holotipo del sinónimo Centrura flagellifer (Bell, 1843) es propuesto como neotipo de Phymaturus palluma (Molina, 1782), la erróneamente identificada especie Tipo por Gravenhorst 1837. Tal neotipo debería ser denominado Phymaturus flagellifer (Bell, 1843) de acuerdo con la real posición taxonómica de la especie de Molina, el Teiido Callopistes, un género de lacertilio notablemente distante del género iguanídeo Phymaturus.Fil: Cei, José Miguel. Universidad Nacional de Cuyo; ArgentinaFil: Scolaro, Jose Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; Argentina. Universidad Nacional de la Patagonia Austral. Centro de Investigaciones y Transferencia Golfo San Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones y Transferencia Golfo San Jorge. Universidad Nacional de la Patagonia "san Juan Bosco". Centro de Investigaciones y Transferencia Golfo San Jorge; Argentin

SECISaln, a web-based tool for the creation of structure-based alignments of eukaryotic SECIS elements

Summary: Selenoproteins contain the 21st amino acid selenocysteine which is encoded by an inframe UGA codon, usually read as a stop. In eukaryotes, its co-translational recoding requires the presence of an RNA stem–loop structure, the SECIS element in the 3 untranslated region of (UTR) selenoprotein mRNAs. Despite little sequence conservation, SECIS elements share the same overall secondary structure. Until recently, the lack of a significantly high number of selenoprotein mRNA sequences hampered the identification of other potential sequence conservation. In this work, the web-based tool SECISaln provides for the first time an extensive structure-based sequence alignment of SECIS elements resulting from the well-defined secondary structure of the SECIS RNA and the increased size of the eukaryotic selenoproteome. We have used SECISaln to improve our knowledge of SECIS secondary structure and to discover novel, conserved nucleotide positions and we believe it will be a useful tool for the selenoprotein and RNA scientific communities

Volumineux lipome de la base du cou chez une chienne

Lombard Charles, Lescure Francis. Volumineux lipome de la base du cou chez une Chienne. In: Bulletin de l'Académie Vétérinaire de France tome 116 n°5, 1963. pp. 235-238

Remote spectral imaging with simultaneous extraction of 3D topography for historical wall paintings

PRISMS (Portable Remote Imaging System for Multispectral Scanning) is designed for in situ, simultaneous high resolution spectral and 3D topographic imaging of wall paintings and other large surfaces. In particular, it can image at transverse resolutions of tens of microns remotely from distances of tens of metres, making high resolution imaging possible from a fixed position on the ground for areas at heights that is difficult to access. The spectral imaging system is fully automated giving 3D topographic mapping at millimetre accuracy as a by-product of the image focusing process. PRISMS is the first imaging device capable of both 3D mapping and spectral imaging simultaneously without additional distance measuring devices. Examples from applications of PRISMS to wall paintings at a UNESCO site in the Gobi desert are presented to demonstrate the potential of the instrument for large scale 3D spectral imaging, revealing faded writing and material identification

Estudio gonioscópico del ángulo iridocorneal del Perro de Agua Español

Realizamos un estudio gonioscópico de 46 Perros de Agua Español sanos, apreciando un ángulo iridocorneal abierto en todos los cuadrantes. Describimos las diferentes estructuras del ángulo iridocorneal en esta raza: las dos filas de fibras. del ligamento pectinado, la red trabecular uveal con los espacios de Fontana, y las bandas pigmentadas superficial y profunda. El ángulo iridocorneal en el Perro de Agua Español no presenta características peculiares para esta raza. Hemos observado grandes diferencias entre ojos de distintos perros, menores entre los del mismo perro, y escasas entre los distintos cuadrantes del mismo ojo. El grado de pigmentación de las estructuras del ángulo iridocorneal no depende del sexo ni de la edad, sino sólo de la pigmentación de la capa y del iris.In the present work, we have realized a gonioscopic study in 46 Spanish Water's Dogs. We have seen an iridocorneal angle always open in all quadrants and we have noticed different structures of the iridocorneal angie. the two rows of fibres of the pectinate ligament, the uveal trabecular meshwork with the Fontana's spaces and the deep and superficial pigrnent bands. The iridocorneal angle of the Spanish Water's Dog does not exhibit peculiar characteristics for this race. We have observed large differences between eyes of different dogs, lesser differences between the eyes of the same dog, and rares differences between the different quadrants of the same eye. We have found that the degree of pigmentation of the structures of iridocorneal angle does not depend of the age, only of the pigmentation of the coat and iris

L’espèce-type du genre <i>Phymaturus</i> Gravenhorst, 1838 (Reptilia, Sauria)

The misidentification of type species in the original description of Phymaturus palluma Gravenhorst, 1838 led to the discovery that Lacerta palluma Molina, 1782 is really a senior synonym of Callopistes maculatus Gravenhorst, 1838. Thus, in agreement with the opinion of the International Commission of Zoological Nomenclature, Callopistes palluma (Molina, 1782) was proposed as a valid taxon, being the type species of Callopistes. Also the validity of Teius oculatus (d’Orbigny et Bibron, 1837) instead of Teius teyou auctorum is here confirmed, being restricted the taxon Teius teyou (Daudin, 1802) to the formerly named Teius cyanogaster Muller, 1928. In the case of the genus Phymaturus Gravenhorst, 1838, in agreement with the art. 70b of the Code 1985 (Int. Comm. Zool. Nomencl.), the taxon Phymaturus flagellifer (Bell, 1843) new combination is proposed. Phymaturus Gravenhorst, 1838 is the senior generic name, though applied to a misidentified type species, which corresponds to the following synonymic taxon Centrura flagellifer Bell, 1843.Lacerta palluma Molina, 1782, erroneamente considerata Stellio palluma da Daudin (1802) e poi da Gravenhorst (1838) come specie tipo del genere Phymaturus Gravenhorst, 1838 è invece la senior specie del genere Callopistes Gravenhorst, 1838, per cui, anche a giudizio della Commissione intemazionale di Nomenclatura zoologica, la successiva specie C. maculatus Gravenhorst, 1838 passa in sinonimia, divenendo taxon valido Callopistes palluma (Molina, 1782). In questa nota si conferma anche la validità di Teius oculatus (d’Orbigny e Bibron, 1837) che sostituisce Teius teyou auctorum ora solo ristretto come Teius teyou (Daudin, 1802) a Teius cyanogaster Muller, 1928) del Chaco. Nel caso del genere Phymaturus Gravenhorst, 1838, l’applicazione dell’art. 70b(i) del Codice 1985 della Comm. intern, di nomencl. zool. consiglia la nuova combinazione Phymaturus flagellifer (Bell, 1843), essendo il genere Centrura Bell, 1843 posteriore a Phymaturus Gravenhorst, 1838, utilizzato sebbene con un nome specifico errato per definire un taxon corrispondente a Centrura flagellifer Bell, 1843 successivamente descritta.Material digitalizado en SEDICI gracias a la colaboración del Dr. Jorge Williams (FCNM-UNLP).Facultad de Ciencias Naturales y Muse