326 research outputs found

    Das Werk Joseph Zoderers

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    Il lungo saggio traccia un quadro critico - per il momento il più completo - della produzione letteraria dello scrittore Sudtirolese Joseph Zoderer. Sebbene la produzione sia presentata principalmente in ordine cronologico, si rilevano nell'opera di Zoderer le tematiche e motivi che collegano le opere in prosa e la lirica dalle prime alle ultime, mettendo in rilievo, in una grande parte dei romanzi, un intreccio fra le condizioni ambientali di una regione di confine con una popolazione mista e i conflitti interni dei protagonisti, i loro problemi affettivi, le loro aspirazioni, le loro desideri, soprattutto di uscire dalle gabbie della convenzione, di un contesto di vita ristretta, per una vita più libera “on the road”, ma anche il desiderio di tornare nell'area protetta della “piccola” patria. Le tematiche - che del resto sono quasi tutti concentrato sul rapporto fra uomo e donna - sono dividibili in due grandi gruppi: le opere dove la tematica specifica del contesto Sudtirolese è preponderante e le opere dove questa tematica è marginale o non esiste, e trattano il tradimento, sia politico (del gruppo di appartenenza) che amoroso, il sentirsi escluso, la sensazione del limite e il tentativo di fuga, la vicinanza e la lontanza, il movimento e la stasi, il proprio e l'altro, l'identità e l'alterità. Motivi come il silenzio e la parola, la pelle (come simbolo della protezione del singolo) ecc. è presente sono ricorrenti dalle prime opere e creano una rete nella produzione letteraria di Zoderer.

    Density Functional study of the photoactive yellow protein's chromophore

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    We have investigated the structural and electronic properties of p-coumaric acid, the chromophore of the photoactive yellow protein (PYP), by means of first-principles molecular dynamics based on density functional theory (DFT). We have studied the chromophore both in the vacuum and in an extended model which includes the nearest residues in the binding pocket of PYP, as derived from crystallographic data. We have characterized the ground state of the isolated chromophore in its protonated and deprotonated forms and computed the energy barrier involved in the trans to cis isomerization process around the carbon-carbon double bond. A comparison of the optimized structures of the chromophore in the vacuum and in the extended protein model, both in the trans (ground state of PYP in the dark) and cis (first light-activated intermediate) configuration, shows how the protein environment affects the chromophore in the first step of the photocycle. Our model gives an energy storage of 25 kcal/mol associated with the trans-to-cia photoisomerization. Finally, we have elucidated the nature of the electronic excitation relevant for the photochemistry of PYP by means of time-dependent DFT calculations.</p

    Implementation and testing of Lanczos-based algorithms for Random-Phase Approximation eigenproblems

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    The treatment of the Random-Phase Approximation Hamiltonians, encountered in different frameworks, like time-dependent density functional theory or Bethe-Salpeter equation, is complicated by their non-Hermicity. Compared to their Hermitian Hamiltonian counterparts, computational methods for the treatment of non-Hermitian Hamiltonians are often less efficient and less stable, sometimes leading to the breakdown of the method. Recently [Gruning et al. Nano Lett. 8 (2009) 28201, we have identified that such Hamiltonians are usually pseudo-Hermitian. Exploiting this property, we have implemented an algorithm of the Lanczos type for Random-Phase Approximation Hamiltonians that benefits from the same stability and computational load as its Hermitian counterpart, and applied it to the study of the optical response of carbon nanotubes. We present here the related theoretical grounds and technical details, and study the performance of the algorithm for the calculation of the optical absorption of a molecule within the Bethe-Salpeter equation framework. (C) 2011 Elsevier B.V. All rights reserved.</p

    Crossing Disciplines Across Borders: How (British) Cultural Studies Have Been Imported (and Translated) in Italy, France, and German-Speaking Countries

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    What are studi culturali and études culturelles, and what about the present status of Kulturwissenschaften? What do they all have in common, if any? What are the differences between them? Are they three different research fields, or three national declinations of the same research program, or what else? Common to all of them nowadays is a more or less immediate reference to the British Cultural Studies, whose circulation however has been different across the three national cases, Italy, France, and Germany (together with Austria). Making use of an array of different sources and methods, this chapter tries to identify the commonalities among these reception histories (also in terms of epistemological foundations) without forgetting their peculiarities with respect to their social and political traditions. In all the three national/regional cases we will examine how the disciplinary and epistemological boundaries have been negotiated among different disciplines and (scholarly, political, and ideological) commitments in order to build new objects of research and a different sensitivity to matters of culture

    Hyperbolic unitals in the Hall planes

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    Using the transformation tecnique introduced in [P. Quattrocchi, L.A. Rosati "Transformation of designs and other incidence structres" Geom. Ded. (1992), 233-240], some sufficient conditions to transform a unital embedded in a projective plane into another one are given. As application unitals in the Hall planes are constructed by transformation of the hermitian curves. Necessary and sufficient conditions for the constructed unitals to be projectively equivalent are given too and fferent classes of not projectively equivalent Buekenhout's unitals are found in this manner. The unital of Gruning in the Hall plane is reconstructed and its embeddability in the dual of the Hall plane is also proved. Finally it is proved that the affine unital associated to the unital of Gruning is ismorphic to the hyperbolic hermitian curve

    Next Generation Computing (and the Zebra Finch)

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    <p>Overview of research given at Digital Innovation Workshop at the Dept of Computer Science, University of Surrey. Slides on Zebra Finch originally by W Senn, Uni Bern.</p

    Well Played--Vol. 3, No. 1

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    Assassin’s Creed III: The Complete Unofficial Guide, a Teacher’s Limited Edition Wade Berger, Patrick Staley Fiasco and Failure: Uncovering Hidden Rules in a Story Game Sean C. Duncan Ninja Gaiden Black and the Tutorial-Less Tutorial Jason Mathias Interaction Images promote Character Identification in Heavy Rain Michael Nixon, Jim Bizzocchi Replaying the remnants in Mark of the Ninja Pierre-Marc Côté Good Fences Make Good Neighbors: Values of Digital Objects in FarmVille2 Jane Gruning Ascension: a Case Study in Deckbuilding Games Andy Nealen</p
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