The epic of the black sea revolt

https://stars.library.ucf.edu/prism/1820/thumbnail.jp

Heroic Spain

https://stars.library.ucf.edu/prism/1656/thumbnail.jp

Who betrayed France ?

https://stars.library.ucf.edu/prism/1002/thumbnail.jp

Les débuts du peintre Joseph-Marie Bouton (1768-1823), entre Toulouse et Carcassonne (1776-1788)

Le parcours international du peintre en miniature Joseph-Marie Bouton (1768-1823), entre France, Espagne et Angleterre, reste méconnu. Cet article entend éclairer une période importante de la carrière de cet artiste, celle de sa formation, au sein de l'Académie royale de peinture, sculpture et architecture de Toulouse, et documenter son premier emploi, celui de professeur, à l'âge de 18 ans, au sein de l'école de dessin fondée à Carcassonne par Jean-Auguste Chastenet de Puységur.The transnational trajectory of the miniaturist Joseph-Marie Bouton between France, Spain and Britain remains largely unknown. This article uncovers the crucial period of the artist's formation in the Académie royale de peinture, sculpture et architecture of Toulouse and his rise at the young age of 18 to the drawing chair at the drawing school founded in Carcassonne by Jean-Auguste Chastenet de Puységur

Magneto-Coulomb Effect in Carbon Nanotube Quantum Dots Filled with Magnetic Nanoparticles

Electrical transport measurements of carbon nanotubes filled with magnetic iron nanoparticles are reported. Low-temperature (40 mK) magnetoresistance measurements showed conductance hysteresis with sharp jumps at the switching fields of the nanoparticles. Depending on the gate voltage, positive or negative hysteresis was observed. The results are explained in terms of a magneto-Coulomb effect: The spin flip of the iron island at a nonzero magnetic field causes a shift of the chemical potential induced by the change of Zeeman energy; i.e., an effective charge variation is detected by the nanotube quantum dot

Genetic structure and evolution of the Leishmania genus in Africa and Eurasia: what does MLSA tell us

Leishmaniasis is a complex parasitic disease from a taxonomic, clinical and epidemiological point of view. The role of genetic exchanges has been questioned for over twenty years and their recent experimental demonstration along with the identification of interspecific hybrids in natura has revived this debate. After arguing that genetic exchanges were exceptional and did not contribute to Leishmania evolution, it is currently proposed that interspecific exchanges could be a major driving force for rapid adaptation to new reservoirs and vectors, expansion into new parasitic cycles and adaptation to new life conditions. To assess the existence of gene flows between species during evolution we used MLSA-based (MultiLocus Sequence Analysis) approach to analyze 222 Leishmania strains from Africa and Eurasia to accurately represent the genetic diversity of this genus. We observed a remarkable congruence of the phylogenetic signal and identified seven genetic clusters that include mainly independent lineages which are accumulating divergences without any sign of recent interspecific recombination. From a taxonomic point of view, the strong genetic structuration of the different species does not question the current classification, except for species that cause visceral forms of leishmaniasis (L. donovani, L. infantum and L. archibaldi). Although these taxa cause specific clinical forms of the disease and are maintained through different parasitic cycles, they are not clearly distinct and form a continuum, in line with the concept of species complex already suggested for this group thirty years ago. These results should have practical consequences concerning the molecular identification of parasites and the subsequent therapeutic management of the disease

Nanostructured materials with highly dispersed Au–Ce0.5Zr0.5O2 nanodomains: A route to temperature stable Au catalysts?

Our strategy to inhibit Au(0) growth with temperature involves the preparation of ultrafine Au clusters that are highly dispersed and strongly interacting with a thermally stable high-surface-area substrate. Temperature-stable Au-cluster-based catalysts were successfully prepared through the controlled synthesis of 3.5 nm Ce0.5Zr0.5O2 colloidal building blocks containing tailored strongly bound Au-cluster precursors. With the objective of stabilizing these Au clusters with temperature, grain growth of Ce0.5Zr0.5O2 nanodomains was inhibited by their dispersion through Al2O3 nanodomains. High surface area Au–Ce0.5Zr0.5O2–Al2O3 nanostructured composites were thus designed highlighting the drastic effect of Au cluster dispersion on Au(0) cluster growth. High thermal stability of our Au(0)-cluster-based catalysts was shown with the surprising catalytic activity for CO conversion observed on our nanostructured materials heated to temperatures as high as 800 C for 6 h

Las indicaciones de tempo de Mozart y los problemas de interpretación

Es una traducción de: Mozart's Tempo lndicatíons and the Problems of lnterpretation, en Perspectives On Mozart's Performance, pp. 55-73, Cambridge University Press, 1991.Luis Carlos Gago (traductor)