Search results for "CTV"

Le coût d'enfouissement des réseaux

2013

International audience

La GRH symbole de modernité. L’appropriation des idées managériales à la mode par les collectivités territoriales

2019

Thème du congrès :« La GRH peut-elle sauver le travail?»; National audience

Evolutionary analysis of Citrus tristeza virus outbreaks in Calabria, Italy: two rapidly spreading and independent introductions of mild and severe i…

2014

The evolution of citrus tristeza virus (CTV) from outbreaks occurred in Calabria, Italy, was compared with that of CTV outbreaks reported previously in another two proximal Italian regions, Sicily and Apulia. Examination of four genomic regions (genes p20, p25 and p23, and one fragment of open reading frame 1) showed two recombination events, and phylogenetic analysis disclosed two divergent CTV groups in Calabria: one formed by severe and the other by mild isolates. This analysis, together with others involving population genetic parameters, revealed a low migration rate of CTV between the three Italian regions, as well as significant differences in selective pressures, epidemiology and de…

Emergence and Phylodynamics of Citrus tristeza virus in Sicily, Italy

2013

Citrus tristeza virus (CTV) outbreaks were detected in Sicily island, Italy for the first time in 2002. To gain insight into the evolutionary forces driving the emergence and phylogeography of these CTV populations, we determined and analyzed the nucleotide sequences of the p20 gene from 108 CTV isolates collected from 2002 to 2009. Bayesian phylogenetic analysis revealed that mild and severe CTV isolates belonging to five different clades (lineages) were introduced in Sicily in 2002. Phylogeographic analysis showed that four lineages co-circulated in the main citrus growing area located in Eastern Sicily. However, only one lineage (composed of mild isolates) spread to distant areas of Sici…

Characterization of p20 and p23 genes in Corsican isolates of Citrus tristeza virus.

2011

Tristeza disease, caused by the Citrus tristeza virus (CTV), is the most important viral disease for almost all the citrus species. Main syndromes are quick decline, stem pitting, vein clearing and seedlings yellows but expression and intensity of symptomatology depends on the interactions of the factors involved in the pathosystem such as host-strain-rootstock-climate-vector. Several isolates of CTV have been studied all over the world. Two Corsican isolates have been previously characterized, the K strain from Marumi kumquat, known to be symptomless on Mexican lime, and the CaL -1 from calamondin inducing stem pitting, but no sequences of p20 gene are published or available in GenBank. Tw…

Liikunnallisuus ja hyvä kunto ehkäisevät tyypin 2 diabetesta ja valtimotautien riskitekijöitä lapsesta lähtien

2021

Lasten ylipaino on saavuttanut epidemian mittasuhteet maailmanlaajuisesti. Vaikka viime vuosina tilanne on hiukan parantunut, ylipaino on edelleen yksi merkittävimmistä kansanterveydellisistä ongelmista. Riskitekijöiden kasautumisen ehkäisy ja hoito tulisi aloittaa mahdollisimman varhain: mielellään jo sikiöaikana tai viimeistään varhaislapsuudessa. nonPeerReviewed

Resonant effects in a SQUID qubit subjected to nonadiabatic changes

2013

By quickly modifying the shape of the effective potential of a double SQUID flux qubit from a single-well to a double-well condition, we experimentally observe an anomalous behavior, namely an alternance of resonance peaks, in the probability to find the qubit in a given flux state. The occurrence of Landau-Zener transitions as well as resonant tunneling between degenerate levels in the two wells may be invoked to partially justify the experimental results. A quantum simulation of the time evolution of the system indeed suggests that the observed anomalous behavior can be imputable to quantum coherence effects. The interplay among all these mechanisms has a practical implication for quantum…

ICTV Virus Taxonomy Profile: Polycipiviridae

2019

Polycipiviridae is a family of picorna-like viruses with non-segmented, linear, positive-sense RNA genomes of approximately 10–12 kb. Unusually for viruses within the order Picornavirales, their genomes are polycistronic, with four (or more) consecutive 5′-proximal open reading frames (ORFs) encoding structural (and possibly other) proteins and a long 3′ ORF encoding the replication polyprotein. Members of species within the family have all been detected in ants or via arthropod transcriptomic datasets. This is a summary of the International Committee on Taxonomy of Viruses (ICTV) Report on the Polycipiviridae, which is available at www.ictv.global/report/polycipiviridae.

Biopolitik am Computerbildschirm, in V. Borsò e M. Cometa (a cura) Die Kunst, das Leben zu Bewirtschaften. Biós zwischen Politik, Öikonomie und Äeste…

2013

Fostering Teacher-Student Interaction and Learner Autonomy by the I-TUTOR Maps

2014

The paper analyses the use of an automatically generated map as a mediator; that map visually represents the study domain of a university course and fosters the co-activity between teachers and stu- dents. In our approach the role of the teacher is meant as a media- tor between the student and knowledge. The mediation (and not the transmission) highlights a process in which theres no deterministic rela- tion between teaching and learning. Learning is affected by the students previous experiences, their own modalities of acquisition and by the in- puts coming from the environment. The learning path develops when the teachers and the students visions approach and, partly, overlap. In this cas…