2,626 research outputs found

    La imagen del tejedor : lenguajes y políticas de la comunicación / Ed. e introd. de M. Piccini.

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    Contiene ensayos sobre la comunicación y los procesos simbólicos: De políticas y poéticas: el orden de la comunicación (Mabel Piccini); Los medios de comunicación y la noción de intencionalidad (Alicia Poloniato); Acerca de la literalidad como fascinación (Teresa Carbó); Las miradas sin fisonomía (Raymundo Mier); Las culturas de la imagen (Andrés de Luna); Ensayo sobre la enunciación de las artes plásticas (Ada Dewes)

    Piccini, Ciamician and the periodic law in Italy

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    This paper discusses the reception of periodic law in late nineteenth-century Italy. The research main objective is to fill a serious gap in the ambit of studies in the history of chemistry in Italy in the period that runs from the mid-nineteenth century to the early twentieth century. Despite the unquestionable level of professionalisation and specialisation that the historiography of science and technology has attained also in Italy, the temporal arch that the study intends to consider, still today represents a largely unexplored territory, firstly for the lack of a systematic exploration of primary sources, such as collections of letters, manuscripts and archive documents. In the period considered, despite a series of delays and shortcomings mainly on the structural and organisational levels, Italy played a leading role thanks to the work of several extraordinary protagonists like Stanislao Cannizzaro, Giacomo Ciamician, and Augusto Piccini. If the relationship between Cannizzaro and Mendeleev are well enough known, we have more to learn about Ciamician and Piccini. For example, a fundamental spectroscopic study of the young Ciamician about spectroscopic analogies between elements in the same group was remembered by Mendeleev in his 1889 Faraday Lecture; at the same time, Piccini studied with originality many aspects of periodic law, and he was in correspondence with Mendeleev. The study will especially concentrate on the development of Mendeleev’s ideas in Italy under the profile of theoretical development, as well as in relation to the growth and definition of its pedagogical uses by means of a survey of Ciamician and Piccini notes and textbooks

    L'homme du peuple : drame en trois actes et en prose / par MM. Dumersan et Gabriel ; musique de M. Alex. Piccini ; ballet de M. Anatole ; décorations de M. Lefèvre ; représenté pour la première fois a Paris sur le théatre de la Porte Saint-Martin le 1er décembre 1829.

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    On verso of t.p.: Imprimerie de Ch. Dezauche ... Signatures: [1] -4[sup]8 5[sup]6. Cast: verso of t.p. Without the music. On peut jouer la pièce sans musique, mais, si l'on veut la jouer en mélodrame, on peut s'adresser, pour la musique, à M. Piccini, chef d'orchestre du théâtre de la Porte Saint-Martin ... --Verso of t.p

    Accurate Quantum Chemical Free Energies at Affordable Cost

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    Free energy sampling methods allow studying the full dynamics of activated processes. Unfortunately, the affordable accuracy of the potential describing the energy and forces of the system is usually rather low. Here we introduce a new method that by combining metadynamics and free energy perturbation allows calculating accurate quantum chemical free energies for chemical reactions. To prove the effectiveness of this new approach we study the SN2 reaction of CH3F + Cl- → CH3Cl + F- in vacuo and solvated by water. Comparisons are made with harmonic transition-state theory to show how this method could provide accurate equilibrium and rate constants for complex systems
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