Search results for "IVR"
showing 10 items of 116 documents
Dehn surgeries and smooth structures on 3-dimensional transitive Anosov flows.
2020
The present thesis is about Dehn surgeries and smooth structures associated with transitive Anosov flows in dimension three. Anosov flows constitute a very important class of dynamical systems, because of its persistent chaotic behaviour, as well as for its rich interaction with the topology of the ambient space. Even if a lot is known about the dynamical and ergodic properties of these systems, there is not a clear understanding about how to classify its different orbital equivalence classes. Until now, the biggest progress has been done in dimension three, where there is a family of techniques intended for the construction of Anosov flows called surgeries.During the realization of this th…
The digitized curriculum: voices and silences in the publishing field
2015
En este artículo se analiza la posición, de algunas de las editoriales presentes en la Comunidad Valenciana, sobre la migración hacia formatos digitales del libro de texto utilizado en centros educativos de niveles no universitarios. Con una metodología mixta se estudian tres dimensiones implicadas en el proceso: la estrategia tecnológica, la pedagógica y la comercial mediante una serie de entrevistas, encuestas, grupos de discusión y análisis de documentos. Entre los resultados alcanzados destaca la gran heterogeneidad de formatos, soportes y marcas; la necesidad de equipos pedagógicos de asesoramiento en las editoriales; la competencia de productos digitales del profesorado y el silencio …
Polychromatic femtosecond fluorescence studies of metal–polypyridine complexes in solution
2011
Femtosecond-resolved broadband fluorescence studies are reported for[ M(bpy)(3)](2+) (M = Fe, Ru), RuN3 and RuN719 complexes in solution. We investigated the pump wavelength dependence of the fluorescence of aqueous [ Fe(bpy)(3)](2+) and the solvent and ligand dependence of the fluorescence of Ru-complexes excited at 400 nm. For all complexes, the (MLCT)-M-1 fluorescence appears at zero time delay with a mirror-like image with respect to the absorption. It decays in <= 30-45 fs due to intersystem crossing to the (MLCT)-M-3 states, but a longer lived component of similar to 190 fs additionally shows up in RuN719 and RuN3. No solvent effects are detected. The very early dynamics are character…
Il destino della Biblioteca pubblica e il ruolo dell’Architettura. Strategie di progettazione per gli edifici del XXI secolo
Oggi ci chiediamo spesso quale sarà la sorte del libro e delle biblioteche rispetto allo sviluppo delle tecnologie digitali e ai cambiamenti della funzione urbana e sociale delle biblioteche. Provare ad immaginare un plausibile scenario futuro é molto difficile, soprattutto se si pensa che il libro e le biblioteche sono legate a diverse e diversificate istanze della società contemporanea che non hanno ancora trovato una propria identità. D’altra parte, la società contemporanea si trova in una fase di transizione tecnologica che rischia, senza alcun dubbio, di produrre dei cambiamenti significativi, non solo in seno alle biblioteche, ma soprattutto nei nostri stessi modi di vivere. Per quest…
Even free radicals should follow some rules: a guide to free radical research terminology and methodology.
2014
Free radicals and oxidants are now implicated in physiological responses and in several diseases. Given the wide range of expertise of free radical researchers, application of the greater understanding of chemistry has not been uniformly applied to biological studies. We suggest that some widely used methodologies and terminologies hamper progress and need to be addressed. We make the case for abandonment and judicious use of several methods and terms and suggest practical and viable alternatives. These changes are suggested in four areas: use of fluorescent dyes to identify and quantify reactive species, methods for measurement of lipid peroxidation in complex biological systems, claims of…
Résistance au glyphosate, ce qui est prouvé
2007
National audience
Synthesis and studies of new optimised chelating agents for targeting chemokine receptor CXCR4
2012
The objective of this thesis work was to develop CXCR4-targeted tools to localize and treat cancer at an early stage. In this line, we investigated the synthesis of new target-specific radiopharmaceuticals. The work focused on two main axes, i.e. the chelating agent and the carrier, by using the know-how and the expertise of our group in polyazacycloalkanes synthesis and functionalization. In the first part, we were interested in developing new macrocyclic scaffolds of high potential for copper and gallium chelation. We first focused on the development of a new powerful route towards selectively functionalized constrained homocyclens. The second part was based on C-functionalized 1,4,7-tria…
Les réformes du droit des brevets prévues par le projet de loi PACTE
2018
International audience
Zeitgeist et "Esprit des profondeurs" dans les images du Livre Rouge
2014
Le Livre Rouge apporte des éléments nouveaux sur le rapport de Jung à l’art pictural. L’étude se propose de replacer et d’étudier les images du Livre Rouge dans le contexte des discours sur l’art de l’époque. Pour ce faire, on s’intéressera dans un premier temps à la réception par Jung du discours sur « Abstraction et Einfühlung » de Worringer dans les Types psychologiques et à l’expérience de la « tentation » esthétique, faite par Jung dans Le Livre Rouge. On s’intéressera ensuite au discours des peintres expressionnistes, en particulier du mouvement du Cavalier bleu (Der Blaue Reiter) et on soulignera certaines similarités de fond et de forme avec les images du Livre Rouge. La conclusion …
Vulpin et ivraies, détecter vite les résistances à certains herbicides blé
2009
Herbicides inhibiting acetolactate-synthase (ALS) are currently of major importance for grass weed control in wheat in France. Rapid resistance diagnosis can help upholding their efficacy. Most cases of resistance to ALS-inhibiting herbicides are due to mutations in the gene encoding ALS. DNA-based assays were developed to detect any ALS mutation endowing resistance in black-grass (Alopecurus myosuroides) and ryegrasses (Lolium spp.). These tests enable resistance diagnosis from leaf fragments, even dried, within 48 hours. They were used to analyse black-grasses and ryegrasses sampled in fields where ALS inhibitor application failures were reported. The tests detected high frequencies of AL…