Search results for "Tris"
showing 10 items of 2410 documents
Projekts: Uzņēmuma SIA"Riga electric scooter tour" izveidošana
2020
Maģistra darba ietvaros autors izvēlējās veidot jaunu uzņēmumu SIA “Riga electric scooter tour”, kas tūristiem un citiem interesentiem piedāvās nelielās grupās gida pavadībā, pārvietojoties ar elektriskajiem skrejriteņiem, iepazīt Rīgas populārākās un kultūrvēsturiski nozīmīgākās vietas un apskates objektus. Lai sekmīgi varētu sniegt ekskursijas līdz 7 cilvēkiem lielās grupās gida pavadībā, būs nepieciešams iegādāties 8 elektriskos skrejriteņus “KICKSCOOTER ES1”, kurus ražo uzņēmums Ninebot by Segway, kas būs vienīgie uzņēmuma pamatlīdzekļi. Konkrētā modeļa braucamrīki tika izvēlētie, jo ar vienu uzlādi ar tiem var nobraukt vismaz tāda garuma distanci, kā plānots ekskursijas maršruta garums…
Uniformization with infinitesimally metric measures
2019
We consider extensions of quasiconformal maps and the uniformization theorem to the setting of metric spaces $X$ homeomorphic to $\mathbb R^2$. Given a measure $\mu$ on such a space, we introduce $\mu$-quasiconformal maps $f:X \to \mathbb R^2$, whose definition involves deforming lengths of curves by $\mu$. We show that if $\mu$ is an infinitesimally metric measure, i.e., it satisfies an infinitesimal version of the metric doubling measure condition of David and Semmes, then such a $\mu$-quasiconformal map exists. We apply this result to give a characterization of the metric spaces admitting an infinitesimally quasisymmetric parametrization.
Junceosides A-C, new triterpene saponins from Arenaria juncea.
2002
Three novel triterpenoid saponins, junceosides A (1), B (2), and C (3), together with two known saponins have been isolated from the roots of Arenaria juncea. Their structures were elucidated using a combination of homo- and heteronuclear 2D NMR techniques (COSY, TOCSY, NOESY, HSQC, and HMBC) and by FABMS. The new compounds were characterized as 3-O-alpha-L-arabinopyranosyl-(1-->2)-[beta-D-galactopyranosyl-(1-->3)]-beta-D-glucuronopyranosylgypsogenin-28-O-beta-D-glucopyranosyl(1-->3)-[beta-D-xylopyranosyl-(1-->4)]-alpha-L-rhamnopyranosyl-(1-->2)-beta-D-fucopyranoside (1), 3-O-alpha-L-arabinopyranosyl-(1-->2)-[beta-D-galactopyranosyl-(1-->3)]-beta-D-glucuronopyranosylgypsogenin-28-O-beta-D-x…
A study on the essential oil of Ferulago campestris : How much does extraction method influence the oil composition?
2011
The essential oil of different parts of Ferulago campestris (Bess.) collected in Sicily has been extracted by microwave-assisted hydrodistillation (MAHD) and by classic hydrodistillation (HD). A comparative qualitative-quantitative study on the composition of the oils was carried out. A total of 100 compounds were identified in the oils obtained by MAHD, whereas 88 compounds characterized the HD oils. The most prominent components were, in all different parts of F. campestris and in both extraction methods, 2,4,5-trimethylbenzaldehyde and 2,4,6-trimethylbenzaldehyde isomers; the latter was not previously found. The attempt to evaluate where the oil components are located in all parts of the…
La reescritura de la leyenda de Tristán e Iseo en "Cligès"
2011
La obra "Cligès", de Chrétien de Troyes, ha sido tradicionalmente considerada por la crítica como una reescritura moralista de la leyenda de Tristán e Iseo. El nuevo sen aplicado por este poeta francés no solo se aplica en el sentido de una relectura del amor cortés más ortodoxa, sino también en el de un mayor realismo literario, más racional y moderno en términos estilísticos. Amor, pasión y adulterio, bajo la pluma de Chrétien, se convierten en nuevos conceptos aptos para establecer una distancia e incluso una confrontación contra el libertinaje poético de sus coetáneos normandos.
La sostenibilidad, un nuevo pensamiento. Intervención de José Vidal-Beneyto
2003
Número monográfico sobre "El nuevo horizonte de la Sostenibilidad". Fundación Santander Central Hispano.
Incidence and epidemiology of Citrus tristeza virus in the Valencian Community of Spain
2000
Abstract The first outbreak of citrus tristeza disease in Spain caused by Citrus tristeza virus (CTV) was recorded in 1957 in the Valencian Community (VC). In total c. 40 million trees, mainly of sweet orange and mandarin grafted on sour orange rootstocks, declined due to CTV. Large-scale surveys in different municipalities of the VC indicated that the disease spread very fast. Incidence increased from 11% in 1989 to 53% in 1998. Toxoptera aurantii and Aphis spiraecola (inefficient aphid vectors of CTV) predominated before 1985–87. Since then the relatively efficient vector Aphis gossypii has become dominant and induced an epidemic that has been modelled. The large number of A.gossypii that…
Variation of haplotype distributions of two genomic regions of Citrus tristeza virus populations from eastern Spain.
2003
Genetic variation in natural populations of Citrus tristeza virus (CTV) was studied using haplotypes detected by single-strand conformation polymorphism (SSCP) analysis of two genomic regions (p20 gene and segment A, located in ORF1a). Analysis of 254 samples from 125 trees, collected at 12 different sites, yielded 8 different haplotypes for p20 and 5 for segment A. The most frequent haplotype of p20 was predominant at all sites, but several sites differed in the predominance of segment A haplotypes. At most sites, the homozygosity observed for the p20 gene tended to be higher than expected in a neutral evolution, whereas the opposite was true for segment A. Comparison of the populations at…
Variability Among Italian Citrus tristeza virus Isolates Revealed by SSCP Analysis, Cloning and Sequencing
2005
Attachement, comportement social et attribution d'intentions dans la trisomie 21
2017
International audience; Cette étude s’inscrit dans le champ des recherches sur le développement sociocognitif des enfants déficients intellectuels porteurs d’une trisomie 21 (T21). Elle porte sur les liens entre les représentations d’attachement et le comportement social avec les pairs, ainsi que sur les liens entre les représentations d’attachement et l’attribution d’intentions dans des situations de provocation où l’intention du personnage qui cause le dommage est ambigüe.